Patent Application
20120142584
The present invention relates to novel transporter constructs of the generic formula (I) DlLLLxDm(LLLyDn)a and variants thereof. The present invention also refers to transporter cargo conjugate molecules, particularly of conjugates of the novel transporter constructs with a cargo moiety, e.g. proteins or peptides, nucleic acids, cytotoxic agents, organic molecules, etc. The present invention furthermore discloses (pharmaceutical) compositions comprising these conjugates and methods of treatment and uses involving such transporter constructs.
Techniques enabling efficient transfer of a substance of interest from the external medium into tissue or cells, and particularly to cellular nuclei, such as nucleic acids, proteins or cytotoxic agents, but also of other (therapeutically useful) compounds, are of considerable interest in the field of biotechnology. These techniques may be suitable for transport and translation of nucleic acids into cells in vitro and in vivo and thus for protein or peptide production, for regulation of gene expression, for induction of cytotoxic or apoptotic effects, for analysis of intracellular processes and for the analysis of the effect of the transport of a variety of different cargos into a cell (or cell nucleus), etc.
One important application of such a transfer of a cargo of interest from the external medium into tissue or cells is gene therapy, wherein the cargo is typically a nucleic acid or a gene. Although this technique has shown some rather promising developments in the last decades, gene transfer is typically limited by the inability of the gene transfer vectors to effectively transfer the biologically active cargo into the cytoplasm or nuclei of cells in the host to be treated without affecting the host genome or altering the biological properties of the active cargo.
In this respect, several techniques have been developed in an effort to more efficiently transfect e.g. nucleic acids, such as DNA or RNA, into cells. Transfection of nucleic acids into cells or tissues of patients by methods of gene transfer is a central method of molecular medicine and plays a critical role in therapy and prevention of numerous diseases.
Representative examples of gene transfer methods include general (physical or physico-chemical) methods such as coprecipitating nucleic acids with calcium phosphate or DEAE-dextran, a method which enables nucleic acids to penetrate the plasma membrane and then enter the cell and/or nucleus. However, this technique suffers from low transfer efficiency and a high percentage of cell death. Additionally, this method is restricted to in vitro or ex vivo methods, but is not applicable to in vivo situations due to its very nature.
The same holds for methods involving in vitro electroporation. In vitro electroporation is based on the use of high-voltage current to make cell membranes permeable to allow the introduction of new nucleic acids, e.g. DNA or RNA, into the cell. However, such methods are typically not suitable in vivo. Furthermore, this technique also suffers from low transfer efficiency and a high percentage of cell death.
Further well known physical or physico-chemical methods include (direct) injection of (naked) nucleic acids or biolistic gene transfer. Biolistic gene transfer (also known as biolistic particle bombardment) is a method developed at Cornell University that allows introducing genetic material into tissues or culture cells. Biolistic gene transfer is typically accomplished by surface coating metal particles, such as gold or silver particles, and shooting these metal particles, comprising the adsorbed DNA, into cells by using a gene gun. Similar as discussed above this method is restricted to in vitro or ex vivo methods, but is usually not applicable in in vivo situations.
Other methods utilize the transport capabilities of so called transporter molecules. Transporter molecules to be used in this context typically may be divided into viral vectors, i.e. transporter molecules, which involve viral elements, and nonviral vectors.
The most successful gene therapy strategies available today rely on viral vectors, such as adenoviruses, adeno-associated viruses, retroviruses, and herpes viruses. These viral vectors typically employ a conjugate of a virus-related substance with a strong affinity for DNA and a nucleic acid. Due to their infection properties, viruses or viral vectors have a very high transfection rate. The viral vectors typically used are genetically modified in a way that no functional infectious particles are formed in the transfected cell. In spite of this safety precaution, however, there are many problems associated with viral vectors related to immunogenicity, cytotoxicity, and insertional mutagenesis. As an example, the risk of uncontrolled propagation of the introduced therapeutically active genes or viral genes cannot be ruled out, e.g., because of possible recombination events. Additionally, the viral conjugates are difficult to use and typically require a long preparation prior to treatment (see, e.g., U.S. Pat. No. 5,521,291).
Although nonviral vectors are not as efficient as viral vectors, many have been developed to provide a safer alternative in gene therapy. Some of the most common nonviral vectors include polyethylenimine, dendrimers, chitosan, polylysine, and peptide based transporter systems, e.g. many types of peptides, which are generally cationic in nature and able to interact with nucleic acids such as plasmid DNA through electrostatic interactions.
For successful delivery, the nonviral vectors, particularly peptide based transporter systems must be able to overcome many barriers. Such barriers include protection of the cargo moiety, e.g. of DNA or other compounds, during transport and prevention of an early degradation or metabolisation of the cargo moiety in vivo. In case of nucleic acids, such as DNA and RNA molecules, the nonviral vectors must furthermore be capable to specifically deliver these molecules for efficient gene expression in target cells.
Particularly for nucleic acids such DNA and RNA molecules there are presently 4 barriers nonviral vectors must overcome to achieve successful gene delivery (see e.g. Martin et al., The AAPS Journal 2007; 9 (1) Article 3). The nonviral vector must be able to 1) tightly compact and protect the nucleic acids, 2) it must able to target specific cell-surface receptors, 3) the nonviral vector must be capable to disrupt the endosomal membrane, and 4) it has to deliver the nucleic acid cargo to the nucleus and allow translation of an encoded protein or peptide sequence.
Such nonviral vectors, particularly peptide-based nonviral vectors, are advantageous over other nonviral strategies in that they are in general able to achieve all 4 of these goals, however, with different efficiency regarding the different barriers.
As an example, cationic peptides rich in basic residues such as lysine and/or arginine are able to efficiently condense nucleic acids such as DNA into small, compact particles that can be stabilized in serum. Furthermore, attachment of a peptide ligand to the polyplex allows targeting to specific receptors and/or specific cell types. Polyplexes or cationic polymers as mentioned above typically form a complex with negatively charged nucleic acids leading to a condensation of nucleic acids and protecting these nucleic acids against degradation. Transport into cells using polyplexes (cationic polymers) typically occurs via receptor mediated endocytosis. Thereby, the DNA is coupled to a distinct molecule, such as Transferrin, via e.g. the polyplex poly-L-lysine (PLL), which binds to a surface receptor and triggers endocytosis. Polyplexes (cationic polymers) include e.g. poly-L-lysine (PLL), chitosan, polyethylenimine (PEI), polydimethylaminoethylmethacrylate (PD-MAEMA), polyamidoamine (PAMAM). Such effects are also known from nanoplexes (nanoparticular systems) or lipoplexes (liposomal systems). Nanoplexes (nanoparticular systems) typically involve the use of polyacrylates, polyamides, polystyrene, cyanoacrylates, polylactat (PLA), polylactic-co-glycolic acid) (PLGA), etc. Lipoplexes or liposomal systems typically involve the use of cationic lipids, which are capable to mimic a cell membrane. Thereby, the positively charged moiety of the lipid interacts with the negatively charged moiety of the nucleic acid and thus enables fusion with the cell membrane. Lipoplexes or liposomal systems include, e.g. DOTMA, DOPE, DOSPA, DOTAP, DC-Chol, EDMPC, etc.
In this context, receptor-mediated endocytosis is also widely exploited in experimental systems for the targeted delivery of cargos such as nucleic acids or therapeutic agents into cells. During receptor-mediated endocytosis the cargo-containing complexes are either selectively internalized by receptors located in the cell membrane which are specific for the cargos, or by specific antibodies located in membrane constituents. Endocytotic activity has been described for many receptors including IgG Fc, somatostatin, insulin, IGF-I and -II, transferrin, EGF, GLP-1, VLDL or integrin receptors, etc.
Different peptide or protein sequences have been tested widely for their use in gene transfer methods via receptor-mediated endocytosis. Interestingly, the isolation of peptide sequences that direct efficient receptor-mediated endocytosis have been profoundly boosted by the use of phage display technologies. Phage display libraries are extremely powerful tools that provide for a practically unlimited source of molecular variants including modifications of natural ligands or cargo moieties to cell receptors and short peptides. Similar libraries have also been injected directly into mice and peptide sequences have been successfully isolated that show a 13-fold selectivity for brain and kidney.
Proprotein convertases may serve as an example of peptide or protein sequences that may be used for transport of molecules into cells. Proprotein convertases are an example of a cell surface receptor which gets internalized through receptor mediated endocytosis. These proteins have been shown to be responsible for conversion of precursors of peptide hormones, neuropeptides, and many other proteins into their biologically active forms. All cleavage sites for the proprotein convertase family obey to the consensus R—X—X—R. The mammalian proprotein convertases can be classified into three groups on the basis of their tissue distribution. Furin, PACE4, PC5/PC6, and LPCIPC7/PC8/SPC7 are expressed in a broad range of tissues and cell lines. In contrast, expression of PC2 and PC1/PC3 is limited to neuroendocrine tissues, such as pancreatic islets, pituitary, adrenal medulla and many brain areas. Expression of PC4 is highly restricted to testicular spermatogenic cells. The neuroendocrine-specific convertases, PC2 and PC1/PC3, are mainly localized in secretory granules. PC5/PC6A has also been reported to be localized to secretory granules. Furthermore, indirect evidence has suggested that a proportion of proprotein convertases molecules is present on the cell surface, and it has been shown that furin cycles between the TGN and the cell surface. Taken together, these properties indicate that proprotein convertases transport extracellular ligands into the intracellular space.
Advantageous are also so called translocatory proteins or of protein transduction domains (PTDs). Peptide sequences derived from translocatory proteins or protein transduction domains (PTDs) are typically able to selectively lyse the endosomal membrane in its acidic environment leading to cytoplasmic release of the polyplex. Translocatory proteins are considered as a group of peptides capable of effecting transport of macromolecules between cells (translocatory proteins), such as HIV-1 TAT (HIV), antennapedia (Drosophila antennapedia), HSV VP22 (Herpes simplex), FGF or lactoferrin, etc. In contrast, protein transduction domains (PTDs) are considered as a group of peptides capable of directing proteins and peptides covalently bound to these sequences into a cell via the cell membrane (Leifert and Whitton: Translocatory proteins and protein transduction domains: a critical analysis of their biological effects and the underlying mechanisms. Molecular Therapy Vol. 8 No. 1 2003). Common to translocatory proteins as well as to PTDs is a basic region, which is regarded as mainly responsible for transport of the fusion peptides since it is capable of binding polyanions such as nucleic acids. Without being bound thereto, PTDs may act similar to cationic transfection reagents using receptor dependent non-saturatable adsorptive endocytosis. PTDs are typically coupled to proteins or peptides in order to effect or enhance a CTL response when administering a peptide based vaccine (see review: Melikov and Chemomordik, Arginine-rich cell penetrating peptides: from endosomal uptake to nuclear delivery, Cell. Mol. Life. Sci. 2005).
Unfortunately, peptide based transporter systems typically undergo proteolytic degradation in vivo due to peptidases leading to truncated transporter (and/or cargo) sequences. Such peptidases may be distinguished into exopeptidases and endopeptidases, which are both enzymes capable of catalysing the splitting of proteins into smaller peptide fractions and even into single amino acids by a process known as proteolysis. In this context, endopeptidases are typically proteolytic peptidases that break peptide bonds of nonterminal amino acids (i.e. within the molecule). Endopeptidases are typically specific for certain amino acids. Examples of endopeptidases include e.g. trypsin, chymotrypsin, elastase, thermolysin, pepsin and endopeptidase V, etc. Trypsin is known to cut after Arg or Lys, unless followed by a Pro. Chymotrypsin is known to cut after Phe, Trp, or Tyr, unless followed by a Pro. Chymotrypsin cuts more slowly after Asn, His, Met or Leu. Elastase cuts after Ala, Gly, Ser, or Val, unless followed by a Pro. Thermolysin is a heat stable endoprotease, which cuts before Ile, Met, Phe, Trp, Tyr, or Val, unless preceded by Pro. Thermolysin sometimes cuts after Ala, Asp, His or Thr. Pepsin is known to cut before Leu, Phe, Trp or Tyr, unless preceded by Pro. Finally, endopeptidase V8 is known to cut after Glu. In contrast to endopeptidases exopeptidases are enzymes that catalyse the removal of an amino acid from the end of a polypeptide chain and thus cleave the end of said polypeptide chain. Exopeptidases may be distinguished from their cleavage site into aminopeptidases and carboxypeptidases. Aminopeptidases are typically zinc-dependent enzymes and are produced by glands of the small intestine. Aminopeptidases usually cleave a single amino acid from the amino-terminal end of a peptide or protein sequence. Carboxypeptidases are typically enzymes that hydrolyze the carboxy-terminal (C-terminal) end of a peptide bond. Humans, animals, and plants contain several types of carboxypeptidases with diverse functions ranging from catabolism to protein maturation, which is a digestive enzyme present in pancreatic juice, will cleave a single amino acid from the carboxylic end of the peptide. A particular example is Carboxypeptidase N(CPN), a plasma zinc metalloprotease comprised of two small subunits that have enzymatic activity, and two large subunits, which protect the enzyme from degradation. CPN cleaves the carboxyl-terminal amino acids arginine and lysine from biologically active peptides such as complement anaphylatoxins, kinins, and fibrinopeptides.
In order to modify proteolytic cleavage by peptide based transporter systems as defined above, the peptide based transporter systems may be composed entirely of D-amino acids, thereby forming “retro-inverso peptide sequences”. The term “retro-inverso (peptide) sequences” refers to an isomer of a linear peptide sequence in which the direction of the sequence is reversed and the chirality of each amino acid residue is inverted (see e.g. Jameson et al., Nature, 368, 744-746 (1994); Brady et al., Nature, 368, 692-693 (1994)). The advantage of combining D-enantiomeric amino acids and reverse synthesis is that the positions of carbonyl and amino groups in each amide bond are exchanged, while the position of the side-chain groups at each alpha carbon is preserved. Due to the conformational change of the naturally occurring L-enantiomeric amino acids of the peptide sequence of a peptide based transporter to D-enantiomeric amino acids the risk of proteolytic cleavage in vivo is eliminated, being advantageous and highly efficient for the purpose of transfection of a cargo moiety into a cell. In contrast, the term “reverse sequence” refers to a sequence in which the direction of the sequence is reversed (but the chirality of each amino acid residue is not inverted (e.g. D-Arg-L-Arg-L-Arg→L-Arg-L-Arg-D-Arg).
However, though efficiently working as a transporter molecule as defined above the conformational change of the naturally occurring L-enantiomeric amino acids of the peptide sequence of such a peptide based transporter to D-enantiomeric amino acids entails the risk of a predominant accumulation of these transporters in the cell during the whole lifetime of a cell or even longer in the (surrounding) tissue or organism. Accordingly, such transporters, even if the attached cargo moiety is cleaved off or is metabolised in the meantime, may remain in the cell and participate in further inter- and intracellular processes leading to unknown and unwanted side effects.
Accordingly, there is a need in the art to provide alternative nonviral transporter molecules, preferably peptide based transporter systems as defined above, which avoid such an unwanted accumulation in the cell or tissue but nevertheless allow an efficient transfer of cargo moieties into cells.
The above object is solved by the subject matter as defined in the claims attached hereto, particularly by a novel transporter construct and its conjugates (transporter cargo conjugate molecule) as defined in the claims. The above object is furthermore solved by methods and uses employing the novel transporter construct and its conjugates as defined in the claims.
According to a first aspect of the present invention, the object of the present invention is solved by a novel transporter construct comprising or consisting of at least one sequence of the generic formula (I) (SEQ ID NO: 1):
wherein:
As used herein, the term “transporter construct” refers to an amino acid containing compound, which is capable of translocation across biological membranes. As used herein, the term “trafficking sequence” (or “transporter sequence”) refers to a sequence of amino acids providing translocation across biological membranes. Accordingly, the transporter constructs according to the present invention comprise a trafficking sequence which allow the transporter construct to translocate across biological membranes. Thus, the novel transporter constructs according to generic formula (I) effectively allow and may provide for the transport of cargo moieties, e.g. of proteins or peptides, of nucleic acids, of small organic molecules, of antigens, of cytotoxic agents, etc., into an organism, a tissue, a cell (e.g. to be treated), a cellular subcompartiment and/or into the nucleus of a cell.
Advantageously, the inventive transporter construct according to generic formula (I) is stable enough to prevent degradation by proteases prior to transport of the cargo moiety to its target site. On the other hand side, the inventive transporter constructs according to generic formula (I) are not permanently persistent in the cell and may be degraded by proteases within a considerable time limit so as to avoid negative side effects such as unwanted accumulation of the novel inventive transporter or its conjugate in the cell. As surprisingly found by the inventors, such advantageous properties may be conferred to a trafficking sequence, particularly to any trafficking sequence known in the art only by the inventive pattern (herein also described as D-/L-pattern) of the above defined generic formula (I), the specific content and position of the D-amino acids in alteration with the specific content of L-amino acids as defined in generic formula (I). This inventive D-/L-pattern allows a skilled person to define the in vivo or in vitro persistence of the inventive novel transporter construct as defined above in the cell precisely enough as a time sufficiently long to ensure administration and entering of the inventive novel transporter construct into the cell or nucleus prior to degradation of the inventive novel transporter construct by proteases within a considerable time limit. This in vivo or in vitro persistence of the inventive novel transporter construct in the cell is in fact dependent on the specific content and position of the D-amino acids in alteration with the specific content of L-amino acids as defined in generic formula (I). Furthermore, a transporter construct exhibiting the inventive D-/L-pattern of the above defined generic formula (I) is short enough to avoid a sterical hindrance of a cargo moiety by the inventive novel transporter construct in a transporter cargo conjugate molecule such as defined below. It also allows a cost efficient preparation of such inventive novel transporter constructs. Additionally, a conjugate of the transporter peptide or protein of the above defined generic formula (I) with either proteins or peptides, nucleic acids such as DNA and RNA molecules or with cytotoxic agents or even small organic molecules, etc., may be formed easily.
According to the above defined generic formula (I), the inventive novel transporter construct comprises L-amino acids and D-amino acids according to the specific D-/L-pattern as set forth in generic formula (I).
In the context of the present invention L-amino acids, also termed L-enantiomeric amino acids, are preferably amino acids selected from natively occurring amino acids or their derivatives. Naturally occurring amino acids are typically selected from the standard (proteinogenic) amino acids alanine, arginine, asparagine, aspartic acid, cysteine, glutamine, glutaminic acid, glycine, histidine, isoleucine, leucine, lysine, methionine, phenyl alanine, proline, serine, threonine, tryptophane, tyrosine, and valine, as well as from non-standard amino acids such as ornithine, citrulline, homocysteine, S-adenosyl methionione, hydroxyproline, selenocysteine, pyrrolysine, lanthionine, 2-aminoisobutyric acid, dehydroalanine, gamma-aminobutyric acid, etc.
Derivatives from such L-amino acids or L-enantiomeric amino acids typically comprise any naturally or non-naturally occurring derivative of these amino acids, including, without being limited thereto, amino acids as defined above comprising post-translational modifications or synthetic modifications, including acetylation (at the N-terminus of the peptide sequence, at lysine residues, etc.), deacetylation, alkylation, such as methylation, ethylation, etc. (preferably at lysine or arginine residues within the peptide sequence), dealkylation, such as demethylation, deethylation, etc., amidation (preferably at the C-terminus of the peptide sequence), formylation, gamma-carboxylation, glutamylation, glycosylation (preferably at asparagine, lysine, hydroxylysine, serine or threonine residues, etc., within the peptide sequence), addition of a heme or haem moiety, hydroxylation, iodination, isoprenylation addition of an isoprenoid moiety such as farnesyl or geranylgeraniol, etc.), lipoylation (attachment of lipoate functionality), such as prenylation, formation of a GPI anchor, including myristoylation, farnesylation, geranylgernaylation, etc., oxidation, phosphorylation (e.g. to a serine, tytosine, threonine or a histidine moiety, etc., within the peptide sequence), sulfation (e.g. of tyrosine), selenoylation, sulfation, etc.
Derivatives of L-amino acids also include, without being limited thereto, modified L-amino acids, which have been modified by introducing one of the following labels:
Particularly specific examples of derivatives of L-amino acids include, without being limited thereto, AMC (aminomethylcoumarin), Dabcyl (dimethylaminophenylazobenzoyl), Dansyl (dimethylaminonaphtalenesulfonyl), FAM (carboxyfluoroscein), Mca (methoxycoumarin acetyl), Xan (xanthyl), Abu (aminobutyric acid), Beta-Ala (beta-alanine), E-Ahx (6-aminohexanoic acid), Alpha-Aib (alpha-aminoisobutyric acid), Ams (aminoserine), Cha (cyclohexylamine), Dab (diaminobutyric acid), Hse (homoserine), Hyp (hydroxyproline), Mpr (mercaptopropionic acid), NaI (naphtylalanine), Nva (Norvaline), Orn (ornithine), Phg (phenylglycine), Sar (sarcosine), Sec (selenocysteine), Thi (thienylalanine), etc.
Furthermore, L-enantiomeric amino acids selected for the inventive novel transporter construct as defined above furthermore may be selected from specific combinations of the above defined L-enantiomeric amino acids or derivatives thereof. Such combinations may comprise 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 or even more of the above defined L-enantiomeric amino acids or derivatives thereof. Combinations are also possible between any of the above defined L-enantiomeric amino acids or derivatives thereof and any the above defined D-enantiomeric amino acids or derivatives thereof within the definitions of generic formula (I) or of any of subformulas as defined herein. Such specific combinations of amino acids may exhibit a higher or a lower stability towards peptidases and thus may provide a further possibility to render the in vivo or in vitro stability of the inventive novel transporter construct as defined above towards a higher or a lower stability. As an example, the inventive novel transporter construct may contain the dipeptide sequence Arg-Lys in D- and/or L-form (i.e. both as D-enantiomeric amino acids or as L-enantiomeric amino acids or mixed D- and L-enantiomeric amino acids), preferably in L-form, which exhibits a lower stability towards pepidases and thus may be used to destabilize the peptide sequence of the inventive novel transporter construct and therefore to decrease its half life in vivo to a further extent.
In the context of the present invention D-amino acids, also termed D-enantiomeric amino acids, are preferably non-native (non-proteinogenic) “retro-inverso” amino acids, wherein these non-native (non-proteinogenic) “retro-inverso” amino acids are preferably derived from naturally occurring L-amino acids and/or their derivatives as defined above. In this context, the term “retro-inverso” refers to an isomer of a naturally occurring L-amino acid as defined above (and peptides made therefrom) in which the chirality of the naturally occurring L-amino acid residue is inverted in the corresponding D-amino acid (see e.g. Jameson et al., Nature, 368, 744-746 (1994); Brady et aZ, Nature, 368, 692-693 (1994)). In other words, in the peptide bonds of D-amino acids the positions of carbonyl and amino groups are exchanged, while the position of the side-chain groups at each alpha carbon is preserved. Accordingly, D-amino acids may be inserted into a peptide sequence consisting of or comprising L-amino acids and therefore may be conjugated with L-amino acids as defined above by methods known in the art. Such methods known in the art include e.g., without being limited thereto, liquid phase peptide synthesis methods or solid peptide synthesis methods, e.g. solid peptide synthesis methods according to Merrifield, t-Boc solid-phase peptide synthesis, Fmoc solid-phase peptide synthesis, BOP (Benzotriazole-1-yl-oxy-tris-(dimethylamino)-phosphonium hexafluorophosphate) based solid-phase peptide synthesis, etc. The content of D-amino acids in the inventive novel transporter constructs according to the D-/L-pattern of generic formula (I) above additionally provides a further variety of useful properties. For example, such novel transporter constructs enter cells more efficiently and are more stable (especially in vivo) and show lower immunogenicity than corresponding L-amino-acid-sequence based transporter constructs. However, they are not as persistent in the cell as transporter constructs entirely made of D-amino acids, particularly due to the fact that almost all decomposition enzymes, like proteases or peptidases, cleave peptide bonds between adjacent L-amino acids. Consequently, peptides composed of D-enantiomeric amino acids and L-enantiomeric amino acids are largely resistant towards a fast proteolytic breakdown without leading to an accumulation in the cell due to a missing degradation by proteases.
The above defined inventive novel transporter construct according to generic formula (I), preferably comprises L-amino acids and D-amino acids or their derivatives as defined above. Such derivatives may be contained in the entire inventive novel transporter construct in a content of about 0%, about 10%, about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 80%, about 90%, or even about 100%. In other words, the entire inventive novel transporter peptide may contain about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, or even more, of such derivatives, wherein the maximum number of possible derivatives is, of course, limited by the maximum number of amino acids as contained in the above defined inventive novel transporter construct according to generic formula (I).
According to the above defined generic formula (I), the inventive novel transporter construct comprises a specific D-/L-pattern of L-amino acids and D-amino acids, which is defined by integers a, l, m, n, x and y.
According to the above definition of generic formula (I), a is a determinant defining the number of repetitions of the subgroup (LLLyD) as defined in the generic formula (I) DlLLLxDm(LLLyDn)a. According to the definition above, a may be any number selected from the range 0-3, preferably selected from the range 0-2, more preferably selected from the range 0-1, or may be selected from individual numbers 0, 1, 2 or 3, even more preferably from individual numbers 0, 1, or 2 and most preferably a=1. According to the specific number of repetitions of a=0, 1, 2 or 3, the inventive novel transporter construct according to generic formula (I) DlLLLxDm(LLLyDn)a, may consist or comprise at least one of the following subformulas (Ia) to (Id):
Furthermore, according to the above definition of generic formula (I), l, m and n are integers defining the number of D-amino acids occurring in generic formula (I), but also in the subformulas (Ia) to (Id) as defined herein. Integers l, m and n may be selected independently from each other. This particularly holds for determinant n, which may occur several times in generic formula (I) or subformulas (Ia) to (Id) as defined herein, i.e. if n occurs several times, each n may be selected independently from each other. According to the definition above, integers l, m and n independently of each other may be any number selected from the range 1-2, or may be selected from individual numbers 1 or 2, even more preferably l, m and/or n=1.
Additionally, according to the above definition of generic formula (I), x and y are integers defining the number of L-amino acids occurring in the generic formula (I), but also in the subformulas (Ia) to (Id) as defined herein. Integers x and y may be selected independently from each other. According to the definition above, integers x and y independently of each other may be any number selected from the range 0-2, preferably selected from the range 0-1, or may be selected from individual numbers 0, 1 or 2, even more preferably from individual numbers 0 or 1 and most preferably x and/or y=1.
According to one particularly preferred embodiment, the object of the present invention is solved by a novel transporter construct comprising or consisting at least one sequence of the specific subformula (Ie):
wherein D, L, and a are as defined above for generic formula (I) or subformulas (Ia) to (Id).
According to another particularly preferred embodiment, the object of the present invention is solved by a novel transporter construct comprising or consisting at least one sequence of the specific subformula (If):
wherein D and L are as defined above for generic formula (I) or subformulas (Ia) to (Id).
The inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), particularly transporter constructs comprising the novel D-/L-pattern may be used with or be applied to any trafficking sequence known in the art, wherein the selected number of contiguous amino acids of those trafficking sequences is determined by the number of amino acids as defined by generic formula (I) or any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If). Such trafficking sequences typically direct the transport of a cargo moiety into a cell or the nucleus or a further specific target region and may comprise, without being limited thereto, translocatory proteins as defined above, e.g. derived from HIV TAT (HIV), e.g. native proteins such as e.g. the TAT protein (e.g. as described in U.S. Pat. Nos. 5,804,604 and 5,674,980, each of these references being incorporated herein by reference), e.g. derived from HIV tat (HIV), HSV VP22 (Herpes simplex) (described in e.g. WO 97/05265; Elliott and O'Hare, Cell 88: 223-233 (1997)), non-viral proteins (Jackson et al, Proc. Natl. Acad. Sci. USA 89: 10691-10695 (1992)), trafficking sequences derived from Antennapedia, particularly from Drosophila antennapedia (e.g. the antennapedia carrier sequence thereof), FGF, lactoferrin, etc. or derived from basic peptides, e.g. peptides having a length of 5 to 15 amino acids, preferably 10 to 12 amino acids and comprising at least 80%, more preferably 85% or even 90% basic amino acids, such as e.g. arginine, lysine and/or histidine, or may be selected from e.g. arginine rich peptide sequences, such as R9, R8, R7, R6, R5, etc., from VP22, from PTD-4 derived proteins or peptides, from RGD-K16, from PEPT1/2 or PEPT1/2 derived proteins or peptides, from SynB3 or SynB3 derived proteins or peptides, from PC inhibitors, from P21 derived proteins or peptides, or from JNKI derived proteins or peptides. Furthermore, variants, fragments and derivatives of one of the native proteins used as trafficking sequences are disclosed herewith.
Particular examples of trafficking sequences forming a basis for the novel transporter construct according to generic formula (I) or to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), as defined above, may be selected from, without being limited thereto, a so-called TAT cell permeation sequence derived from the basic trafficking sequence of the HIV-1 TAT protein. Preferably, the basic trafficking sequence of the HIV-1 TAT protein may include sequences from the human immunodeficiency virus HIV-1 TAT protein, e.g. as described in, e.g., U.S. Pat. Nos. 5,804,604 and 5,674,980, each incorporated herein by reference. In this context, the full-length HIV-1 TAT protein has 86 amino acid residues [SEQ ID NO: 8] encoded by two exons of the HIV TAT gene. TAT amino acids 1-72 are encoded by exon 1, whereas amino acids 73-86 are encoded by exon 2. The full-length TAT protein is characterized by a basic region which contains two lysines and six arginines (amino acids 49-57) and a cysteine-rich region which contains seven cysteine residues (amino acids 22-37). The basic region (i.e., amino acids 49-57) was thought to be important for nuclear localization. Ruben, S. et al., J. Virol. 63: 1-8 (1989); Hauber, J. et al., J. Virol. 63 1181-1187 (1989). The cysteine-rich region mediates the formation of metal-linked dimers in vitro (Frankel, A. D. et al, Science 240: 70-73 (1988); Frankel, A. D. et al., Proc. Natl. Acad. Sci. USA 85: 6297-6300 (1988)) and is essential for its activity as a transactivator (Garcia, J. A. et al., EMBO J. 7: 3143 (1988); Sadaie, M. R. et al., J. Virol. 63:1 (1989)). As in other regulatory proteins, the N-terminal region may be involved in protection against intracellular proteases (Bachmair, A. et al., Cell 56: 1019-1032 (1989)). Preferred TAT trafficking sequences utilized with a to generic formula (I) or any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), are preferably characterized by the presence of the TAT basic region amino acid sequence (amino acids 49-57 of naturally-occurring tat protein); the absence of the TAT cysteine-rich region amino acid sequence (amino acids 22-36 of naturally-occurring TAT protein) and the absence of the TAT exon 2-encoded carboxy-terminal domain (amino acids 73-86 of naturally-occurring TAT protein).
According to a more preferred embodiment the trafficking sequences forming a basis for the novel transporter construct according to generic formula (I) or to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), as defined above, may be selected from an amino acid sequence containing TAT residues 48-57 or 49 to 57, and most preferably a TAT sequence according to any of SEQ ID NOs: 8 to 14, or from a generic TAT sequence NH2—Xnb-RKKRRQRRR-Xnb—COOH (L-generic-TAT (s)) [SEQ ID NO: 16] and/or XXXXRKKRRQ RRRXXXX (L-generic-TAT) [SEQ ID NO: 15]. In this context, each X typically represents an amino acid residue, preferably selected from any (naturally occurring) amino acid residue as defined herein. Furthermore, each Xnb may be selected from any amino acid residue as defined herein, wherein n (the number of repetitions of X) is 0-5, 5-10, 10-15, 15-20, 20-30 or more. Preferably, Xnb represents a contiguous stretch of peptide residues derived from the sequence according to SEQ ID NO: 8 (TAT (1-86)). Alternatively, the trafficking sequences forming a basis for the novel transporter construct according to generic formula (I) or to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), as defined above, may be selected from, e.g., a peptide containing the amino acid sequence NH2-GRKKRRQRRR-COOH (L-TAT (s1a)) [SEQ ID NO: 17] or the amino acid sequence NH2-RKKRRQRRR-COOH (L-TAT (s1b)) [SEQ ID NO: 18].
The person skilled in the art will understand that phrases like that a sequence according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) may be used with or be applied to a particular (trafficking) sequence or may form a basis for a transporter peptide construct to generic formula (I) or any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), etc. is intended to illustrate that a sequence is claimed which exhibits certain characterisitics with regard to:
To give an illustrative example: If subformula (If) is used with or applied to TAT (1-86) (SEQ ID NO:8), the sequence of the side chain residues (i) is as indicated in SEQ ID NO: 8. However, this claimed sequence is not a pure L-amino acid sequence, but comprises somewhere the motif of subformula (If). An example for such embodiment would be the following sequence (D-amino acids indicated in small letters, L amino acids indicated in capital letters):
Since SEQ ID NO:8 comprises 86 amino acids, there are of course several further possibilities of placing the motif of subformula (If) elsewhere in this sequence. It is also envisioned that the sequence may comprise in particular embodiments more than one motif of the generic formula and/or subformulas.
Particular preferred examples of trafficking sequences forming a basis for a transporter peptide construct to generic formula (I) or any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), as defined above, may be selected, without being limited thereto, from sequences or a part thereof as defined according to Table 1 below, or any fragment or variant or derivative thereof (as long as it retains the function of translocating across a biological membrane).
Particular examples of trafficking sequences forming a basis for a transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), as defined above, may also be selected from sequences as mentioned herein, e.g. as shown in Table 1, which exhibit the reverse sequence of this specific sequence, i.e., wherein the order of amino acids in the sequence from N- to C-terminal end is reversed.
Particular preferred examples of trafficking sequences forming a basis for a transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), as defined above, may be selected from fragments or variants of the above sequences (with the proviso that such fragment or variant retain the function to provide for translocation across biological membranes). In this specific context, variants and/or fragments of those trafficking sequences preferably comprise or consist of a peptide sequence having at least 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80% or 85%, preferably at least 90%, more preferably at least 95% and most preferably at least 99% over the whole length of the native sequence of such a trafficking sequence as defined above. Additionally, a fragment of such a trafficking sequence may furthermore comprise epitopes (also called “antigen determinants”) of the full-length trafficking sequence. Epitopes in the context of the present invention are typically fragments located on the outer surface of a (native) protein or peptide sequence as defined herein, preferably having 5 to 15 amino acids, more preferably having 5 to 12 amino acids, even more preferably having 6 to 9 amino acids, which may be recognized by antibodies, i.e. in their native form.
In this specific context, a “fragment” of a trafficking sequence as defined above, particularly in Table 1 or 3, is preferably to be understood as a truncated sequence thereof, i.e. an amino acid sequence, which is N-terminally, C-terminally and/or intrasequentially truncated compared to the amino acid sequence of the native sequence.
Furthermore, in the specific context of the present invention, a “variant” of a trafficking sequence or its fragment as defined above, particularly as defined in Table 1 or 3, is preferably to be understood as a sequence wherein the amino acid sequence of the variant differs from the native trafficking sequence or a fragment thereof as defined herein in one or more mutation(s), such as one or more substituted, (or, if necessary, inserted and/or deleted) amino acid(s). Preferably, variants of such a trafficking sequence as defined above have the same biological function or specific activity compared to the full-length native sequence, i.e. transport into cells and the nucleus. More preferably, a variant of such a trafficking sequence as defined above may comprise about 1 to 50, 1 to 20, even more preferably 1 to 10 and most preferably 1 to 5, 4, 3, 2 or 1 amino acid alterations within the above meaning. Variants of such a trafficking sequence as defined above may also comprise conservative amino acid substitutions. Conservative amino acid substitutions may include synonymous amino acid residues within a group which have sufficiently similar physicochemical properties, so that a substitution between members of the group will preserve the biological activity of the molecule (see e.g. Grantham, R. (1974), Science 185, 862-864). It is evident to the skilled person that amino acids may also be inserted and/or deleted in the above-defined sequences without altering their function, particularly if the insertions and/or deletions only involve a few amino acids, e.g. less than twenty, and preferably less than ten, and do not remove or displace amino acids which are critical to functional activity. Particularly, conservative amino acid substitutions are preferably substitutions in which the amino acids, which originate from the same class of amino acids (basic amino acids, acidic amino acids, polar amino acids, etc.), are exchanged for one another. In particular, these are amino acids, aliphatic side chains, positively or negatively charged side chains, aromatic groups in the side chains of amino acids, the side chains of which can enter into hydrogen bridges, e.g. side chains which have a hydroxyl function. This means that e.g. an amino acid having a polar side chain is replaced by another amino acid having a likewise polar side chain, or, for example, an amino acid characterized by a hydrophobic side chain is substituted by another amino acid having a likewise hydrophobic side chain (e.g. serine (threonine) by threonine (serine) or leucine (isoleucine) by isoleucine (leucine)). Preferably, synonymous amino acid residues, which are classified into the same groups and are typically exchangeable by conservative amino acid substitutions, are defined in Table 2.
The length of a trafficking sequences used for a transporter construct as defined above, i.e. the number of contiguous amino acids selected from any of the trafficking sequences as defined above, may in a particular embodiment be determined by the number of amino acids of generic formula (I) or by any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) as defined above. The (sequence) length of an inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), may therefore deviate from the length of the exemplary trafficking sequences as shown herein, e.g. in Table 1 or 3 or as generally defined herein. In other words, the length of the transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) as defined above may determine the length of the amino acid sequence, which may be taken from a trafficking sequence as defined herein, provided that the amino acid sequence is taken from a contiguous stretch of amino acids of said trafficking sequence. As an example, if the length of a transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), as defined above, is 9 amino acids, a sequence suitable as a transporter construct is derived from 9 contiguous amino acids of a trafficking sequence as defined above, wherein the selected amino acid sequence may be derived from any position or region of said trafficking sequence. The same holds for any other length determined by generic formula (I) or by any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), as defined above. It is also contemplated that in some embodiments the trafficking sequence of the transporter construct according to the present invention is less than 150, 140, 130, 120, 110, 100, 90, 80, 70, 60, 50, 40, 30, 20, and/or less than 10 amino acids in length.
According to another preferred embodiment, an inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), comprises or consists of at least one variant and/or fragment of the above defined sequences. Preferably, these variants and/or fragments retain biological activity of the inventive novel transporter constructs according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), as disclosed above. Functionality of such fragments or variants may be tested by various tests, e.g. transfection efficacy, correct expression of proteins encoded by cargo nucleic acids, or by biophysical methods, e.g. spectroscopy, computer modeling, structural analysis, etc. Particularly, the inventive novel transporter constructs according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), as disclosed above or variants and/or fragments thereof may be analyzed by hydrophilicity analysis (see e.g. Hopp and Woods, 1981. Proc Natl Acad Sci USA 78: 3824-3828) that can be utilized to identify the hydrophobic and hydrophilic regions of the peptides, thus aiding in the design of substrates for experimental manipulation. Secondary structural analysis may also be performed to identify regions of the inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If), as disclosed above or of variants and/or fragments thereof that assume specific structural motifs (see e.g. Chou and Fasman, 1974, Biochem 13: 222-223). Manipulation, translation, secondary structure prediction, hydrophilicity and hydrophobicity profiles, open reading frame prediction and plotting, and determination of sequence homologies can be accomplished using computer software programs available in the art. Other methods of structural analysis include, e.g. X-ray crystallography (see e.g. Engstrom, 1974. Biochem Exp Biol 11: 7-13), mass spectroscopy and gas chromatography (see e.g. METHODS IN PROTEIN SCIENCE, 1997, J. Wiley and Sons, New York, N.Y.) and computer modeling (see e.g. Fletterick and Zoller, eds., 1986. Computer Graphics and Molecular Modeling, In: CURRENT COMMUNICATIONS 1N MOLECULAR BIOLOGY, Cold Spring Harbor Laboratory Press, Cold Spring Harbor, N.Y.) may also be employed.
Likewise, the inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above, comprises or consists of at least one variant (and/or fragment) of the above defined transporter constructs. In the context of the invention variants (and/or fragments) of these novel transporter constructs may have a sequence identity to their native transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) of at least 70%, 80% or 85%, preferably at least 90%, more preferably at least 95% and most preferably at least 99% over the whole length of the native transporter construct as defined above.
A “fragment” of an inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above, is preferably to be understood as a truncated sequence thereof, i.e. an amino acid sequence of the novel transporter construct, which is N-terminally, C-terminally and/or intrasequentially truncated compared to the amino acid sequence of the native sequence, e.g. the native inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above.
A “variant” of an inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above preferably comprises a sequence wherein the amino acid sequence of the transporter construct variant differs from the native sequence of the transporter construct as defined herein in one or more mutation(s), such as one or more substituted, (or, if necessary, inserted and/or deleted) amino acid(s). Preferably, variants of such inventive transporter constructs have the same biological function or specific activity compared to the full-length native inventive transporter constructs as defined above. Preferably, a variant of inventive transporter constructs may comprise about 1 to 50, 1 to 20, preferably 1 to 10 and more preferably 1 to 5, 1 to 4, 1 to 3, 1 to 2 or 1 amino acid alteration(s) within the above meaning. Such alterations may comprise inter alia modifications of amino acids as defined above, introduction of labels into amino acids as defined above, substituting an amino acid with any of the (modified or labelled) amino acids mentioned herein, deletions or insertions of amino acids. Variants as defined herein furthermore preferably comprise conservative amino acid substitutions, preferably such as already defined above.
In order to determine the percentage to which two amino acid sequences are identical, particularly the amino acid sequence of an inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above, or of any further amino acid sequence as defined herein, the amino acid sequences can be aligned in order to be subsequently compared to one another. Therefore, as an example, e.g. gaps can be inserted into the sequence of the first amino acid sequence and the component at the corresponding position of the second amino acid sequence can be compared. If a position in the first amino acid sequence is occupied by the same component as is the case at a position in the second amino acid sequence, the two sequences are identical at this position. The percentage to which two sequences are identical is a function of the number of identical positions divided by the total number of positions. The same, of course also applies accordingly to nucleic acid sequences. In the above context, an amino acid sequence having a sequence “sharing a sequence identity” of at least, for example, 95% to a query amino acid sequence of the present invention, is intended to mean that the sequence of the subject amino acid sequence is identical to the query sequence except that the subject amino acid sequence may include up to five amino acid alterations per each 100 amino acids of the query amino acid sequence. In other words, to obtain an amino acid sequence having a sequence of at least 95% identity to a query amino acid sequence, up to 5% (5 of 100) of the amino acid residues in the subject sequence may be inserted or substituted with another amino acid or deleted, preferably within the above definitions of variants or fragments. The same, of course, also applies similarly to nucleic acid sequences.
For (amino acid or nucleic acid) sequences without exact correspondence, a “% identity” of a first sequence may be determined with respect to a second sequence. In general, these two sequences to be compared are aligned to give a maximum correlation between the sequences. This may include inserting “gaps” in either one or both sequences, to enhance the degree of alignment. A % identity may then be determined over the whole length of each of the sequences being compared (so-called global alignment), that is particularly suitable for sequences of the same or similar length, or over shorter, defined lengths (so-called local alignment), that is more suitable for sequences of unequal length.
Methods for comparing the identity and homology of two or more sequences are well known in the art. The percentage to which two sequences are identical can e.g. be determined using a mathematical algorithm. A preferred, but not limiting, example of a mathematical algorithm which can be used is the algorithm of Karlin et al. (1993), PNAS USA, 90:5873-5877. Such an algorithm is integrated in the BLAST family of programs, e.g. BLAST or NBLAST program (see also Altschul et al, 1990, J. Mol. Biol. 215, 403-410 or Altschul et al. (1997), Nucleic Acids Res, 25:3389-3402), accessible through the home page of the NCBI at world wide web site ncbi.nlm.nih.gov) and FASTA (Pearson (1990), Methods Enzymol. 183, 63-98; Pearson and Lipman (1988), Proc. Natl. Acad. Sci. U.S. A 85, 2444-2448.). Sequences which are identical to other sequences to a certain extent can be identified by these programmes. Furthermore, programs available in the Wisconsin Sequence Analysis Package, version 9.1 (Devereux et al., 1984, Nucleic Acids Res., 387-395), for example the programs BESTFIT and GAP, may be used to determine the % identity between two polynucleotides and the % identity and the % homology or identity between two polypeptide sequences. BESTFIT uses the “local homology” algorithm of (Smith and Waterman (1981), J. Mol. Biol. 147, 195-197.) and finds the best single region of similarity between two sequences.
According to a particularly preferred embodiment the inventive novel transporter construct as defined above comprises the subformula (If) DLLLDLLLD (SEQ ID NO: 7) as defined above, wherein the transporter sequence is selected from any of the above mentioned (specific) sequences, even more preferably from following sequences:
In the above table, the subformula (If) DLLLDLLLD (SEQ ID NO: 7) is applied to the above specific sequences, i.e. novel inventive transporter construct as defined above comprises 9 amino acids, wherein the D-enantiomeric amino acids are indicated herein with a small character and the L-enantiomeric amino acids are indicated with a capital letter.
In a particular embodiment the inventive transporter construct comprise or consist of at least one sequence according to rXXXrXXXr (SEQ ID NO: 252), wherein:
Surprisingly, the present inventors found, that a tyrosine (Y) at position 2 of formula (I) above not only significantly increases uptake but also a significantly increased intracellular concentration after inoculation for 25 hours. This is particularly observed for transporter constructs which comprise a trafficking sequence derived from HIV-1 TAT protein as shown in Table 1, which show an Y in position 2, preferably have 9 aa and exhibiting the consensus sequence rXXXrXXXr (SEQ ID NO: 252). According to a particularly preferred embodiment of the present invention, the inventive novel transporter construct as defined above therefore comprises transporter constructs of general formula (I) defined above or even more preferably according to subformula (If) as defined above, wherein the transporter sequence is used with or is applied to a trafficking sequence derived from HIV-1 TAT protein having a Tyrosine (Y) at position 2 of the TAT derived sequence. Even more preferably, the transporter sequence is used with or is applied to a trafficking sequence derived from HIV-1 TAT protein having a Tyrosine (Y) at position 2 of the TAT derived sequence, wherein the transporter construct of general formula (I) defined above or according to subformula (If) as defined above preferably has 9 aa and the consensus sequence rXXXrXXXr (SEQ ID NO: 252 wherein the D-enantiomeric amino acids are indicated herein with a small character and the L-enantiomeric amino acids are indicated with a capital letter). Most preferably, the transporter sequence is used with or is applied to a trafficking sequence derived from HIV-1 TAT, wherein the transporter construct of general formula (I) defined above or according to subformula (If) as defined above preferably has 9 aa and the consensus sequence rXXXrXXXr (SEQ ID NO: 252) and the trafficking sequence is selected from the sequence TAT(s2-91) (SEQ ID NO: 116).
The inventive novel transporter constructs according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above, may furthermore comprise at least one modification, preferably at their termini, either at the C- or the N-terminus or both. The C-Terminus may preferably be modified by an amide modification, whereas the N-terminus may be modified by any suitable NH2-protection group, such as e.g. acylation, or any further modification as already indicated above for L-amino acids and D-amino acids. Such modifications also includes introduction of labels as defined above.
The inventive novel transporter constructs according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above, may be obtained or produced by methods well-known in the art, e.g. by chemical synthesis as defined above or by genetic engineering methods.
According to a second aspect of the present invention the underlying object is solved by an inventive transporter cargo conjugate molecule, comprising as a component (A) the inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above, and as a component (B) an effector molecule, e.g. selected from proteins or peptides, such as therapeutically active proteins and peptides, protein kinase inhibitors, particularly inhibitors of the protein kinase c-Jun amino terminal kinase or factors, antigens, antibodies, apoptotic factors, proteases implicated in pathological states, preferably peptidic protease inhibitors, BH3-domains BH3-only proteins, or selected from nucleic acids, siRNAs, antisense RNAs or from cytotoxic agents, small organic compounds, etc.
In the context of the present invention, a therapeutically active protein or peptide suitable as the effector molecule for component (B) of the inventive transporter cargo conjugate molecule may be selected from, without being limited thereto, proteins, capable of stimulating or inhibiting the signal transduction in the cell, e.g. cytokines, antibodies, etc. Therapeutically active proteins may thus comprise cytokines of class I of the family of cytokines, having 4 positionally conserved cysteine residues (CCCC) and comprising a conserved sequence motif Trp-Ser-X-Trp-Ser (WSXWS; SEQ ID NO: 253), wherein X is a non-conserved amino acid. Cytokines of class I of the family of cytokines comprise the GM-CSF subfamily, e.g. IL-3, IL-5, GM-CSF, the IL-6-subfamily, e.g. IL-6, IL-11, IL-12, or the IL-2-subfamily, e.g. IL-2, IL-4, IL-7, IL-9, IL-15, etc., or the cytokines IL-1alpha, IL-1beta, IL-10 etc. Therapeutically active proteins may also comprise cytokines of class II of the family of cytokines, which also comprise 4 positionally conserved cystein residues (CCCC; SEQ ID NO: 254), but no conserved sequence motif Trp-Ser-X-Trp-Ser (WSXWS; SEQ ID NO: 253). Cytokines of class II of the family of cytokines comprise e.g. IFN-alpha, IFN-beta, IFN-gamma, etc. Therapeutically active proteins may additionally comprise cytokines of the family of tumor necrose factors, e.g. TNF-alpha, TNF-beta, etc., or cytokines of the family of chemokines, which comprise 7 transmembrane helices and interact with G-protein, e.g. IL-8, MIP-1, RANTES, CCR5, CXR4, etc., or cytokine specific receptors, such as TNF-RI, TNF-RII, CD40, OX40 (CD134), Fas, or from fragments or variants thereof. Preferably, such fragments as well as variants exhibit a sequence homology or identity of about 10%, about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 80%, or about 90% with one of the protein or peptide sequences as shown or described above. In this context, fragments and variants are preferably as defined above for component (A) of the inventive transporter cargo conjugate molecule.
Therapeutically active proteins suitable as the effector molecule of component (B) of the inventive transporter cargo conjugate molecule may also be selected from any of the proteins given in the following: OATL3, OFC3, OPA3, OPD2, 4-1 BBL, 5T4, 6Ckine, 707-AP, 9D7, A2M, AA, AAAS, AACT, AASS, ABAT, ABCA1, ABCA4, ABCB1, ABCB11, ABCB2, ABCB4, ABCB7, ABCC2, ABCC6, ABCC8, ABCD1, ABCD3, ABCG5, ABCG8, ABL1, ABO, ABR ACAA1, ACACA, ACADL, ACADM, ACADS, ACADVL, ACAT1, ACCPN, ACE, ACHE, ACHM3, ACHM1, ACLS, ACPI, ACTA1, ACTC, ACTN4, ACVRL1, AD2, ADA, ADAMTS13, ADAMTS2, ADFN, ADH1B, ADH1C, ADLDH3A2, ADRB2, ADRB3, ADSL, AEZ, AFA, AFD1, AFP, AGA, AGL, AGMX2, AGPS, AGS1, AGT, AGTR1, AGXT, AH02, AHCY, ARDS, AHHR, AHSG, AIC, AIED, AIH2, AIH3, AIM-2, AIPL1, AIRE, AK1, ALAD, ALAS2, ALB, HPG1, ALDH2, ALDH3A2, ALDH4A1, ALDH5A1, ALDH1A1, ALDOA, ALDOB, ALMS1, ALPL, ALPP, ALS2, ALX4, AMACR, AMBP, AMCD, AMCD1, AMCN, AMELX, AMELY, AMGL, AMH, AMHR2, AMPD3, AMPD1, AMT, ANC, ANCR, ANK1, ANOP1, AOM, APOA4, APOC2, APOC3, AP3B1, APC, aPKC, APOA2, APOA1, APOB, APOC3, APOC2, APOE, APOH, APP, APRT, APS1, AQP2, AR, ARAF1, ARG1, ARHGEF12, ARMET, ARSA, ARSB, ARSC2, ARSE, ART-4, ARTC1/m, ARTS, ARVD1, ARX, AS, ASAH, ASAT, ASD1, ASL, ASMD, ASMT, ASNS, ASPA, ASS, ASSP2, ASSP5, ASSP6, AT3, ATD, ATHS, ATM, ATP2A1, ATP2A2, ATP2C1, ATP6B1, ATP7A, ATP7B, ATP8B1, ATPSK2, ATRX, ATXN1, ATXN2, ATXN3, AUTS1, AVMD, AVP, AVPR2, AVSD1, AXIN1, AXIN2, AZF2, B2M, B4GALT7, B7H4, BAGE, BAGE-1, BAX, BBS2, BBS3, BBS4, BCA225, BCAA, BCH, BCHE, BCKDHA, BCKDHB, BCL10, BCL2, BCL3, BCL5, BCL6, BCPM, BCR, BCR/ABL, BDC, BDE, BDMF, BDMR, BEST1, beta-Catenin/m, BF, BFHD, BFIC, BFLS, BFSP2, BGLAP, BGN, BHD, BHR1, BING-4, BIRC5, BJS, BLM, BLMH, BLNK, BMPR2, BPGM, BRAF, BRCA1, BRCA1/m, BRCA2, BRCA2/m, BRCD2, BRCD1, BRDT, BSCL, BSCL2, BTAA, BTD, BTK, BUB1, BWS, BZX, COL2A1, COL6A1, C1NH, C1QA, C1QB, C1QG, C1S, C2, C3, C4A, C4B, C5, C6, C7, C7orf2, C8A, C8B, C9, CA125, CA15-3/CA 27-29, CA195, CA19-9, CA72-4, CA2, CA242, CA50, CABYR, CACD, CACNA2D1, CACNA1A, CACNA1F, CACNA1S, CACNB2, CACNB4, CAGE, CA1, CALB3, CALCA, CALCR, CALM, CALR, CAM43, CAMEL, CAP-1, CAPN3, CARD15, CASP-5/m, CASP-8, CASP-8/m, CASR, CAT, CATM, CAV3, CB1, CBBM, CBS, CCA1, CCAL2, CCAL1, CCAT, CCL-1, CCL-11, CCL-12, CCL-13, CCL-14, CCL-15, CCL-16, CCL-17, CCL-18, CCL-19, CCL-2, CCL-20, CCL-21, CCL-22, CCL-23, CCL-24, CCL-25, CCL-27, CCL-3, CCL-4, CCL-5, CCL-7, CCL-8, CCM1, CCNB1, CCND1, CCO, CCR2, CCR5, CCT, CCV, CCZS, CD1, CD19, CD20, CD22, CD25, CD27, CD27L, cD3, CD30, CD30, CD30L, CD33, CD36, CD3E, CD3G, CD3Z, CD4, CD40, CD40L, CD44, CD44v, CD44v6, CD52, CD55, CD56, CD59, CD80, CD86, CDAN1, CDAN2, CDAN3, CDC27, CDC27/m, CDC2L1, CDH1, CDK4, CDK4/m, CDKN1C, CDKN2A, CDKN2A/m, CDKN1A, CDKN1C, CDL1, CDPD1, CDR1, CEA, CEACAM1, CEACAM5, CECR, CECR9, CEPA, CETP, CFNS, CFTR, CGF1, CHAC, CHED2, CHED1, CHEK2, CHM, CHML, CHR39C, CHRNA4, CHRNA1, CHRNB1, CHRNE, CHS, CHS1, CHST6, CHX10, CIAS1, CIDX, CKN1, CLA2, CLA3, CLA1, CLCA2, CLCN1, CLCN5, CLCNKB, CLDN16, CLP, CLN2, CLN3, CLN4, CLN5, CLN6, CLN8, C1QA, C1QB, C1QG, C1R, CLS, CMCWTD, CMDJ, CMD1A, CMD1B, CMH2, MH3, CMH6, CMKBR2, CMKBR5, CML28, CML66, CMM, CMT2B, CMT2D, CMT4A, CMT1A, CMTX2, CMTX3, C-MYC, CNA1, CND, CNGA3, CNGA1, CNGB3, CNSN, CNTF, COA-1/m, COCH, COD2, COD1, COH1, COL10A, COL2A2, COL11A2, COL17A1, COL1A1, COL1A2, COL2A1, COL3A1, COL4A3, COL4A4, COL4A5, COL4A6, COL5A1, COL5A2, COL6A1, COL6A2, COL6A3, COL7A1, COL8A2, COL9A2, COL9A3, COL11A1, COL1A2, COL23A1, COL1A1, COLQ, COMP, COMT, CORD5, CORD1, COX10, COX-2, CP, CPB2, CPO, CPP, CPS1, CPT2, CPT1A, CPX, CRAT, CRB1, CRBM, CREBBP, CRH, CRHBP, CRS, CRV, CRX, CRYAB, CRYBA1, CRYBB2, CRYGA, CRYGC, CRYGD, CSA, CSE, CSF1R, CSF2RA, CSF2RB, CSF3R, CSF1R, CST3, CSTB, CT, CT7, CT-9/BRD6, CTAA1, CTACK, CTEN, CTH, CTHM, CTLA4, CTM, CTNNB1, CTNS, CTPA, CTSB, CTSC, CTSK, CTSL, CTS1, CUBN, CVD1, CX3CL1, CXCL1, CXCL10, CXCL11, CXCL12, CXCL13, CXCL16, CXCL2, CXCL3, CXCL4, CXCL5, CXCL6, CXCL7, CXCL8, CXCL9, CYB5, CYBA, CYBB, CYBB5, CYFRA 21-1, CYLD, CYLD1, CYMD, CYP11B1, CYP11B2, CYP17, CYP17A1, CYP19, CYP19A1, CYP1A2, CYPIB1, CYP21A2, CYP27A1, CYP27B1, CYP2A6, CYP2C, CYP2C19, CYP2C9, CYP2D, CYP2D6, CYP2D7P1, CYP3A4, CYP7B1, CYPB1, CYP11B1, CYP1A1, CYPIB1, CYRAA, D40, DADI, DAM, DAM-10/MAGE-B1, DAM-6/MAGE-B2, DAX1, DAZ, DBA, DBH, DBI, DBT, DCC, DC-CK1, DCK, DCR, DCX, DDB1, DDB2, DDIT3, DDU, DECR1, DEK-CAN, DEM, DES, DF, DFN2, DFN4, DFN6, DFNA4, DFNA5, DFNB5, DGCR, DHCR7, DHFR, DHOF, DHS, DIA1, DIAPH2, DIAPH1, DIH1, DIO1, DISCI, DKC1, DLAT, DLD, DLL3, DLX3, DMBT1, DMD, DM1, DMPK, DMWD, DNAI1, DNASE1, DNMT3B, DPEP1, DPYD, DPYS, DRD2, DRD4, DRPLA, DSCR1, DSG1, DSP, DSPP, DSS, DTDP2, DTR, DURS1, DWS, DYS, DYSF, DYT2, DYT3, DYT4, DYT2, DYT1, DYX1, EBAF, EBM, EBNA, EBP, EBR3, EBS1, ECA1, ECB2, ECE1, ECGF1, ECT, ED2, ED4, EDA, EDAR, ECA1, EDN3, EDNRB, EEC1, EEF1A1L14, EEGV1, EFEMP1, EFTUD2/m, EGFR, EGFR/Her1, EGI, EGR2, EIF2AK3, eIF4G, EKV, EI IS, ELA2, ELF2, ELF2M, ELK1, ELN, ELONG, EMD, EML1, EMMPRIN, EMX2, ENA-78, ENAM, END3, ENG, ENO1, ENPP1, ENUR2, ENUR1, EOS, EP300, EPB41, EPB42, EPCAM, EPD, EphAl, EphA2, EphA3, EphrinA2, EphrinA3, EPHX1, EPM2A, EPO, EPOR, EPX, ERBB2, ERCC2 ERCC3, ERCC4, ERCC5, ERCC6, ERVR, ESR1, ETFA, ETFB, ETFDH, ETM1, ETV6-AML1, ETV1, EVC, EVR2, EVR1, EWSR1, EXT2, EXT3, EXT1, EYA1, EYCL2, EYCL3, EYCL1, EZH2, F10, F11, F12, F13A1, F13B, F2, F5, F5F8D, F7, F8, F8C, F9, FABP2, FACL6, FAH, FANCA, FANCB, FANCC, FANCD2, FANCF, FasL, FBN2, FBN1, FBP1, FCG3RA, FCGR2A, FCGR2B, FCGR3A, FCHL, FCMD, FCP1, FDPSL5, FECH, FEO, FEOM1, FES, FGA, FGB, FGD1, FGF2, FGF23, FGF5, FGFR2, FGFR3, FGFR1, FGG, FGS1, FH, FIC1, FIH, F2, FKBP6, FLNA, FLT4, FMO3, FMO4, FMR2, FMR1, FN, FN1/m, FOXC1, FOXE1, FOXL2, FOXO1A, FPDMM, FPF, Fra-1, FRAXF, FRDA, FSHB, FSHMD1A, FSHR, FTH1, FTHL17, FTL, FTZF1, FUCA1, FUT2, FUT6, FUT1, FY, G250, G250/CAIX, G6PC, G6PD, G6PT1, G6PT2, GAA, GABRA3, GAGE-1, GAGE-2, GAGE-3, GAGE-4, GAGE-5, GAGE-6, GAGE-7b, GAGE-8, GALC, GALE, GALK1, GALNS, GALT, GAMT, GAN, GAST, GASTRIN17, GATA3, GATA, GBA, GBE, GC, GCDH, GCGR, GCH1, GCK, GCP-2, GCS1, G-CSF, GCSH, GCSL, GCY, GDEP, GDF5, GDI1, GDNF, GDXY, GFAP, GFND, GGCX, GGT1, GH2, GH1, GHR, GHRHR, GHS, GIF, GINGF, GIP, GJA3, GJA8, GJB2, GJB3, GJB6, GJB1, GK, GLA, GLB, GLB1, GLC3B, GLC1B, GLC1C, GLDC, GLI3, GLP1, GLRA1, GLUD1, GM1 (fuc-GM1), GM2A, GM-CSF, GMPR, GNAI2, GNAS, GNAT1, GNB3, GNE, GNPTA, GNRH, GNRH1, GNRHR, GNS, GnT-V, gp100, GP1BA, GP1BB, GP9, GPC3, GPD2, GPDS1, GP1, GP1BA, GPN1LW, GPNMB/m, GPSC, GPX1, GRHPR, GRK1, GROα, GROβ, GROγ, GRPR, GSE, GSM1, GSN, GSR, GSS, GTD, GTS, GUCA1A, GUCY2D, GULOP, GUSB, GUSM, GUST, GYPA, GYPC, GYS1, GYS2, HOKPP2, HOMG2, HADHA, HADHB, HAGE, HAGH, HAL, HAST-2, HB1, HBA2, HBA1, HBB, HBBP1, HBD, HBE1, HBG2, HBG1, HBHR, HBP1, HBQ1, HBZ, HBZP, HCA, HCC-1, HCC-4, HCF2, HCG, HCL2, HCL1, HCR, HCVS, HD, HPN, HER2, HER2/NEU, HER3, HERV-K-MEL, HESX1, HEXA, HEXB, HF1, HFE, HF1, HGD, HHC2, HHC3, HHG, HK1 HLA-A, HLA-A*0201-R1701, HLA-A11/m, HLA-A2/m, HLA-DPB1 HLA-DRA, HLCS, HLXB9, HMBS, HMGA2, HMGCL, HMI, HMN2, HMOX1, HMS1 HMW-MAA, HND, HNE, HNF4A, HOAC, HOMEOBOX NKX 3.1, HOM-TES-14/SCP-1, HOM-TES-85, HOXA1 HOXD13, HP, HPC1, HPD, HPE2, HPE1, HPFH, HPFH2, HPRT1, HPS1, HPT, HPV-E6, HPV-E7, HR, HRAS, HRD, HRG, HRPT2, HRPT1, HRX, HSD11B2, HSD17B3, HSD17B4, HSD3B2, HSD3B3, HSN1, HSP70-2M, HSPG2, HST-2, HTC2, HTC1, hTERT, HTN3, HTR2C, HVBS6, HVBS1, HVEC, HV1S, HYAL1, HYR, 1-309, IAB, IBGC1, IBM2, ICAM1, ICAM3, iCE, ICHQ, ICR5, ICR1, ICS1, IDDM2, IDDM1, IDS, IDUA, IF, IFNa/b, IFNGR1, IGAD1, IGER, IGF-1R, IGF2R, IGF1, IGH, IGHC, IGHG2, IGHG1, IGHM, IGHR, IGKC, IHG1, IHH, IKBKG, IL1, IL-1 RA, IL10, IL-11, IL12, IL12RB1, IL13, IL-13Rα2, IL-15, IL-16, IL-17, IL18, IL-1a, IL-1α, IL-1b, IL-1β, IL1RAPL1, IL2, IL24, IL-2R, IL2RA, IL2RG, IL3, IL3RA, IL4, IL4R, IL4R, IL-5, IL6, IL-7, IL7R, IL-8, IL-9, Immature laminin receptor, IMMP2L, INDX, INFGR1, INFGR2, INFα, IFN INFγ, INS, INSR, INVS, IP-10, IP2, IPF1, IP1, IRF6, IRS1, ISCW, ITGA2, ITGA2B, ITGA6, ITGA7, ITGB2, ITGB3, ITGB4, ITIH1, ITM2B, IV, IVD, JAG1, JAK3, JBS, JBTS1, JMS, JPD, KAL1, KAL2, KALI, KLK2, KLK4, KCNA1, KCNE2, KCNE1, KCNH2, KCNJ1, KCNJ2, KCNJ1, KCNQ2, KCNQ3, KCNQ4, KCNQ1, KCS, KERA, KFM, KFS, KFSD, KHK, ki-67, KIAA0020, KIAA0205, KIAA0205/m, KIF1B, KIT, KK-LC-1, KLK3, KLKB1, KM-HN-1, KMS, KNG, KNO, K-RAS/m, KRAS2, KREV1, KRT1, KRT10, KRT12, KRT13, KRT14, KRT14L1, KRT14L2, KRT14L3, KRT16, KRT16L1, KRT16L2, KRT17, KRT18, KRT2A, KRT3, KRT4, KRT5, KRT6A, KRT6B, KRT9, KRTHB1, KRTHB6, KRT1, KSA, KSS, KWE, KYNU, LOH19CR1, L1CAM, LAGE, LAGE-1, LALL, LAMA2, LAMA3, LAMB3, LAMB1, LAMC2, LAMP2, LAP, LCA5, LCAT, LCCS, LCCS1, LCFS2, LCS1, LCT, LDHA, LDHB, LDHC, LDLR, LDLR/FUT, LEP, LEWISY, LGCR, LGGF-PBP, LGI1, LGMD2H, LGMD1A, LGMD1B, LHB, LHCGR, LHON, LHRH, LHX3, LIF, LIG1, LIMM, LIMP2, LIPA, LIPA, LIPB, LIPC, LIVIN, L1CAM, LMAN1, LMNA, LMX1B, LOLR, LOR, LOX, LPA, LPL, LPP, LQT4, LRP5, LRS1, LSFC, LT-β, LTBP2, LTC4S, LYL1, XCL1, LYZ, M344, MA50, MAA, MADH4, MAFD2, MAFD1, MAGE, MAGE-A1, MAGE-A10, MAGE-A12, MAGE-A2, MAGE-A3, MAGE-A4, MAGE-A6, MAGE-A9, MAGEB1, MAGE-B10, MAGE-B16, MAGE-B17, MAGE-B2, MAGE-B3, MAGE-B4, MAGE-B5, MAGE-B6, MAGE-C1, MAGE-C2, MAGE-C3, MAGE-D1, MAGE-D2, MAGE-D4, MAGE-E1, MAGE-E2, MAGE-F1, MAGE-H1, MAGEL2, MGB1, MGB2, MAN2A1, MAN2B1, MANBA, MANBB, MAOA, MAOB, MAPK8IP1, MAPT, MART-1, MART-2, MART2/m, MAT1A, MBL2, MBP, MBS1, MC1R, MC2R, MC4R, MCC, MCCC2, MCCC1, MCDR1, MCF2, MCKD, MCL1, MC1R, MCOLN1, MCOP, MCOR, MCP-1, MCP-2, MCP-3, MCP-4, MCPH2, MCPH1, MCS, M-CSF, MDB, MDCR, MDM2, MDRV, MDS1, MD, MEl/m, ME2, ME20, ME3, MEAX, MEB, MEC CCL-28, MECP2, MEFV, MELANA, MELAS, MEN1 MSLN, MET, MF4, MG50, MG50/PXDN, MGAT2, MGAT5, MGC1 MGCR, MGCT, MGI, MGP, MHC2TA, MHS2, MHS4, MIC2, MIC5, MIDI, MIF, MIP, MIP-5/HCC-2, MITF, MJD, MKI67, MKKS, MKS1, MLH1, MLL, MLLT2, MLLT3, MLLT7, MLLT1, MLS, MLYCD, MMA1a, MMP 11, MMVP1, MN/CA IX-Antigen, MNG1, MN1, MOC31, MOCS2, MOCS1, MOG, MORC, MOS, MOV18, MPD1, MPE, MPFD, MPI, MPIF-1, MPL, MPO, MPS3C, MPZ, MRE11A, MROS, MRP1, MRP2, MRP3, MRSD, MRX14, MRX2, MRX20, MRX3, MRX40, MRXA, MRX1, MS, MS4A2, MSD, MSH2, MSH3, MSH6, MSS, MSSE, MSX2, MSX1, MTATP6, MTCO3, MTCO1, MTCYB, MTHFR, MTM1, MTMR2, MTND2, MTND4, MTND5, MTND6, MTND1, MTP, MTR, MTRNR2, MTRNR1, MTRR, MTTE, MTTG, MITI, MTTK, MTTL2, MTTL1, MTTN, MTTP, MTTS1, MUC1, MUC2, MUC4, MUC5AC, MUM-1, MUM-1/m, MUM-2, MUM-2/m, MUM-3, MUM-3/m, MUT, mutant p21 ras, MUTYH, MVK, MX2, MXI1, MY05A, MYB, MYBPC3, MYC, MYCL2, MYH6, MYH7, MYL2, MYL3, MYMY, MYO15A, MYO1G, MYO5A, MYO7A, MYOC, Myosin/m, MYP2, MYP1, NA88-A, N-acetylglucosaminyltransferase-V, NAGA, NAGLU, NAMSD, NAPB, NAT2, NAT, NBIA1, NBS1, NCAM, NCF2, NCF1, NDN, NDP, NDUFS4, NDUFS7, NDUFS8, NDUFV1, NDUFV2, NEB, NEFH, NEM1, Neo-PAP, neo-PAP/m, NEU1, NEUROD1, NF2, NF1, NFYC/m, NGEP, NHS, NKS1, NKX2E, NM, NME1, NMP22, NMTC, NODAL, NOG, NOS3, NOTCH3, NOTCH1, NP, NPC2, NPC1, NPHL2, NPHP1, NPHS2, NPHS1, NPM/ALK, NPPA, NQO1, NR2E3, NR3C1, NR3C2, NRAS, NRAS/m, NRL, NROB1, NRTN, NSE, NSX, NTRK1, NUMA1, NXF2, NY-CO1, NY-ESO1, NY-ESO-B, NY-LU-12, ALDOA, NYS2, NYS4, NY-SAR-35, NYS1, NYX, OA3, OA1, OAP, OASD, OAT, OCA1, OCA2, OCD1, OCRL, OCRL1, OCT, ODDD, ODT1, OFC1, OFD1, OGDH, OGT, OGT/m, OPA2, OPA1, OPD1, OPEM, OPG, OPN, OPN1LW, OPN1MW, OPN1SW, OPPG, OPTB1, TTD, ORM1, ORP1, OS-9, OS-91m, OSM LIF, OTC, OTOF, OTSC1, OXCT1, OYTES1, P15, P190 MINOR BCR-ABL, P2RY12, P3, P16, P40, P4HB, P-501, P53, P53/m, P97, PABPN1, PAFAHIB1, PAFAH1P1, PAGE-4, PAGE-5, PAH, PAI-1, PAI-2, PAK3, PAP, PAPPA, PARK2, PART-1, PATE, PAX2, PAX3, PAX6, PAX7, PAX8, PAX9, PBCA, PBCRA1, PBT, PBX1, PBXP1, PC, PCBD, PCCA, PCCB, PCK2, PCK1, PCLD, PCOS1, PCSK1, PDB1, PDCN, PDE6A, PDE6B, PDEF, PDGFB, PDGFR, PDGFRL, PDHA1, PDR, PDX1, PECAM1, PEE1, PEO1, PEPD, PEX10, PEX12, PEX13, PEX3, PEX5, PEX6, PEX7, PEX1, PF4, PFBI, PFC, PFKFB1, PFKM, PGAM2, PGD, PGK1, PGK1P1, PGL2, PGR, PGS, PHA2A, PHB, PHEX, PHGDH, PHKA2, PHKA1, PHKB, PHKG2, PHP, PHYH, P1, PI3, PIGA, PIM1-KINASE, PIN1, PIP5K1B, PITX2, PITX3, PKD2, PKD3, PKD1, PKDTS, PKHD1, PKLR, PKP1, PKU1, PLA2G2A, PLA2G7, PLAT, PLEC1, PLG, PLI, PLOD, PLP1, PMEL17, PML, PML/RARα, PMM2, PMP22, PMS2, PMS1, PNKD, PNLIP, POF1, POLA, POLH, POMC, PON2, PON1, PORC, POTE, POU1F1, POU3F4, POU4F3, POU1F1, PPAC, PPARG, PPCD, PPGB, PPH1, PPKB, PPMX, PPDX, PPP1R3A, PPP2R2B, PPT1, PRAME, PRB, PRB3, PRCA1, PRCC, PRD, PRDX5/m, PRF1, PRG4, PRKAR1A, PRKCA, PRKDC, PRKWNK4, PRNP, PROC, PRODH, PROM1, PROP1, PROS1, PRST, PRP8, PRPF31, PRPF8, PRPH2, PRPS2, PRPS1, PRS, PRSS7, PRSS1, PRTN3, PRX, PSA, PSAP, PSCA, PSEN2, PSEN1, PSG1, PSGR, PSM, PSMA, PSORS1, PTC, PTCH, PTCH1, PTCH2, PTEN, PTGS1, PTH, PTHR1, PTLAH, PTOS1, PTPN12, PTPNI I, PTPRK, PTPRK/m, PTS, PUJO, PVR, PVRL1, PWCR, PXE, PXMP3, PXR1, PYGL, PYGM, QDPR, RAB27A, RAD54B, RAD54L, RAG2, RAGE, RAGE-1, RAG1, RAP1, RARA, RASA1, RBAF600/m, RB1, RBP4, RBP4, RBS, RCA1, RCAS1, RCCP2, RCD1, RCV1, RDH5, RDPA, RDS, RECQL2, RECQL3, RECQL4, REG1A, REHOBE, REN, RENBP, RENS1, RET, RFX5, RFXANK, RFXAP, RGR, RHAG, RHAMM/CD168, RHD, RHO, Rip-1, RLBP1, RLN2, RLN1, RLS, RMD1, RMRP, ROM1, ROR2, RP, RP1, RP14, RP17, RP2, RP6, RP9, RPD1, RPE65, RPGR, RPGRIP1, RP1, RP10, RPS19, RPS2, RPS4X, RPS4Y, RPS6KA3, RRAS2, RS1, RSN, RSS, RU1, RU2, RUNX2, RUNX1, RS, RYR1, S-100, SAA1, SACS, SAG, SAGE, SALL1, SARDH, SART1, SART2, SART3, SAS, SAX1, SCA2, SCA4, SCA5, SCA7, SCA8, SCA1, SCC, SCCD, SCF, SCLC1, SCN1A, SCN1B, SCN4A, SCN5A, SCNN1A, SCNN1B, SCNN1G, SCO2, SCP1, SCZD2, SCZD3, SCZD4, SCZD6, SCZD1, SDF-1α/SDHA, SDHD, SDYS, SEDL, SERPENA7, SERPINA3, SERPINA6, SERPINA1, SERPINC1, SERPIND1, SERPINE1, SERPINF2, SERPING1, SERPINI1, SFTPA1, SFTPB, SFTPC, SFTPD, SGCA, SGCB, SGCD, SGCE, SGM1, SGSH, SGY-1, SH2D1A, SHBG, SHFM2, SHFM3, SHFM1, SHH, SHOX, SI, SIAL, SIALYL LEWISX, SIASD, S11, SIM1, SIRT2/m, SIX3, SJS1, SKP2, SLC10A2, SLC12A1, SLC12A3, SLC17A5, SLC19A2, SLC22A1L, SLC22A5, SLC25A13, SLC25A15, SLC25A20, SLC25A4, SLC25A5, SLC25A6, SLC26A2, SLC26A3, SLC26A4, SLC2A1, SLC2A2, SLC2A4, SLC3A1, SLC4A1, SLC4A4, SLC5A1, SLC5A5, SLC6A2, SLC6A3, SLC6A4, SLC7A7, SLC7A9, SLC11A1, SLOS, SMA, SMAD1, SMAL, SMARCB1, SMAX2, SMCR, SMCY, SM1, SMN2, SMN1, SMPD1, SNCA, SNRPN, SOD2, SOD3, SOD1, SOS1, SOST, SOX9, SOX10, Sp17, SPANXC, SPG23, SPG3A, SPG4, SPG5A, SPG5B, SPG6, SPG7, SPINK1, SPINK5, SPPK, SPPM, SPSMA, SPTA1, SPTB, SPTLC1, SRC, SRD5A2, SRPX, SRS, SRY, βhCG, SSTR2, SSX1, SSX2 (HOM-MEL-40/SSX2), SSX4, ST8, STAMP-1, STAR, STARP1, STATH, STEAP, STK2, STK11, STn/KLH, STO, STOM, STS, SUOX, SURF1, SURVIVIN-2B, SYCP1, SYM1, SYN1, SYNS1, SYP, SYT/SSX, SYT-SSX-1, SYT-SSX-2, TA-90, TAAL6, TACSTD1, TACSTD2, TAG72, TAF7L, TAF1, TAGE, TAG-72, TALI, TAM, TAP2, TAP1, TAPVR1, TARC, TARP, TAT, TAZ, TBP, TBX22, TBX3, TBX5, TBXA2R, TBXAS1, TCAP, TCF2, TCF1, TCIRG1, TCL2, TCL4, TCL1A, TCN2, TCOF1, TCR, TCRA, TDD, TDFA, TDRD1, TECK, TECTA, TEK, TEUAML1, TELAB1, TEX15, TF, TFAP2B, TFE3, TFR2, TG, TGFα, TGF-β, TGFBI, TGFB1, TGFBR2, TGFBRE, TGFβ, TGFβRII, TGIF, TGM-4, TGM1, TH, THAS, THBD, THC, THC2, THM, THPO, THRA, THRB, TIMM8A, TIMP2, TIMP3, TIMP1, TITF1, TKCR, TKT, TLP, TLR1, TLR10, TLR2, TLR3, TLR4, TLR4, TLR5, TLR6, TLR7, TLR8, TLR9, TLX1, TM4SF1, TM4SF2, TMC1, TMD, TMIP, TNDM, TNF, TNFRSF11A, TNFRSF1A, TNFRSF6, TNFSF5, TNFSF6, TNFα, TNFβ, TNNI3, TNNT2, TOC, TOP2A, TOP1, TP53, TP63, TPA, TPBG, TPI, TPI/m, TPI1, TPM3, TPM1, TPMT, TPO, TPS, TPTA, TRA, TRAG3, TRAPPC2, TRC8, TREH, TRG, TRH, TRIM32, TRIM37, TRP1, TRP2, TRP-2/6b, TRP-2/INT2, Trp-p8, TRPS1, TS, TSC2, TSC3, TSC1, TSG101, TSHB, TSHR, TSP-180, TST, TTGA2B, TTN, TTPA, TTR, TU M2-PK, TULP1, TWIST, TYH, TYR, TYROBP, TYROBP, TYRP1, TYS, UBE2A, UBE3A, UBE1, UCHL1, UFS, UGT1A, ULR, UMPK, UMPS, UOX, UPA, UQCRC1, URO5, UROD, UPK1B, UROS, USH2A, USH3A, USH1A, USH1C, USP9Y, UV24, VBCH, VCF, VDI, VDR, VEGF, VEGFR-2, VEGFR-1, VEGFR-2/FLK-1, VHL, VIM, VMD2, VMD1, VMGLOM, VNEZ, VNF, VP, VRNI, VWF, VWS, WAS, WBS2, WFS2, WFS1, WHCR, WHN, WISP3, WMS, WRN, WS2A, WS2B, WSN, WSS, WT2, WT3, WT1, WTS, WWS, XAGE, XDH, XIC, XIST, XK, XM, XPA, XPC, XRCC9, XS, ZAP70, ZFHX1B, ZFX, ZFY, ZIC2, ZIC3, ZNF145, ZNF261, ZNF35, ZNF41, ZNF6, ZNF198, ZWS1, or from fragments or variants thereof. Preferably, such fragments as well as variants exhibit a sequence homology or identity of about 10%, about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 80%, or about 90% with one of the proteins or peptides or protein or peptide sequences as shown or described above. In this context, the definition of fragments and variants similarly applies as defined above for component (A) of the inventive transporter cargo conjugate molecule.
Effector molecules suitable as component (B) of the inventive transporter cargo conjugate molecule may also be selected from protein kinase inhibitors, particularly inhibitors of the protein kinase c-Jun amino terminal kinase, i.e. a JNK inhibitor. Typically, a JNK inhibitor suitable as component (B) of the inventive transporter cargo conjugate molecule may be derived from a human or rat IB1 sequence, preferably from an amino acid sequence as defined or encoded by any of sequences according to SEQ ID NO: 137 (depicts the IB1 cDNA sequence from rat and its predicted amino acid sequence), SEQ ID NO: 138 (depicts the IB1 protein sequence from rat encoded by the exon-intron boundary of the rIB1 gene—splice donor), SEQ ID NO: 139 (depicts the IB1 protein sequence from Homo sapiens), or SEQ ID NO: 140 (depicts the IB1 cDNA sequence from Homo sapiens), more preferably from an amino acid sequence as defined or encoded by any of sequences according to SEQ ID NO: 139 (depicts the IB1 protein sequence from Homo sapiens), or SEQ ID NO: 140 (depicts the IB1 cDNA sequence from Homo sapiens), or from any fragments or variants thereof. In this context, the definition of fragments and variants similarly applies as defined above for component (A) of the inventive transporter cargo conjugate molecule.
Preferably, a JNK inhibitor sequence suitable as component (B) of the inventive transporter cargo conjugate molecule comprises a total length of less than 150 amino acid residues, preferably a range of 5 to 150 amino acid residues, more preferably 10 to 100 amino acid residues, even more preferably 10 to 75 amino acid residues and most preferably a range of 10 to 50 amino acid residues, e.g. 10 to 30, 10 to 20, or 10 to 15 amino acid residues. More preferably, such a JNK inhibitor sequence and the above ranges may be selected from any of the herein mentioned JNK inhibitor sequence, even more preferably from an amino acid sequence as defined according to SEQ ID NO: 139 or as encoded by SEQ ID NO: 140, even more preferably in the region between nucleotides 420 and 980 of SEQ ID NO: 140 or amino acids 105 and 291 of SEQ ID NO: 139, and most preferably in the region between nucleotides 561 and 647 of SEQ ID NO: 140 or amino acids 152 and 180 of SEQ ID NO: 139.
According to a particular embodiment, a JNK inhibitor sequence suitable as component (B) of the inventive transporter cargo conjugate molecule typically binds JNK and/or inhibits the activation of at least one JNK activated transcription factor, e.g. c-Jun or ATF2 (see e.g. SEQ ID NOs: 147 and 148, respectively) or Elk1.
Likewise, a JNK inhibitor sequence suitable as component (B) of the inventive transporter cargo conjugate molecule preferably comprises or consists of at least one amino acid sequence according to any one of SEQ ID NOs: 137 to 220, or a fragment, derivative or variant thereof. More preferably, the JNK inhibitor sequence as used herein may contain 1, 2, 3, 4 or even more copies of an amino acid sequence according to SEQ ID NOs: 137 to 220, or a variant, fragment or derivative thereof. If present in more than one copy, these amino acid sequences according to SEQ ID NOs: 137 to 220, or variants, fragments, or derivatives thereof as used herein may be directly linked with each other without any linker sequence or via a linker sequence comprising 1 to 10, preferably 1 to 5 amino acids. Amino acids forming the linker sequence are preferably selected from glycine or proline as amino acid residues. More preferably, these amino acid sequences according to SEQ ID NOs: 137 to 220, or fragments, variants or derivatives thereof, as used herein, may be separated by each other by a hinge of two, three or more proline residues.
The JNK inhibitor sequence suitable as component (B) of the inventive transporter cargo conjugate molecule may be composed of L-amino acids, D-amino acids, or a combination of both. Preferably, the JNK inhibitor sequences as used herein comprise at least 1 or even 2, preferably at least 3, 4 or 5, more preferably at least 6, 7, 8 or 9 and even more preferably at least 10 or more D- and/or L-amino acids, wherein the D- and/or L-amino acids may be arranged in the JNK inhibitor sequences as used herein in a blockwise, a non-blockwise or in an alternate manner.
According to one preferred embodiment the JNK inhibitor sequence suitable as component (B) of the inventive transporter cargo conjugate molecule may be exclusively composed of L-amino acids. The JNK inhibitor sequences as used herein may then comprise or consist of at least one “native JNK inhibitor sequence” according to SEQ ID NO: 141 or 143. In this context, the term “native” or “native JNK inhibitor sequence(s)” is referred to non-altered JNK inhibitor sequences according to any of SEQ ID NOs: 141 or 143, as used herein, entirely composed of L-amino acids.
Accordingly, the JNK inhibitor sequence suitable as component (B) of the inventive transporter cargo conjugate molecule may comprise or consist of at least one (native) amino acid sequence NH2—Xnb—Xna-RPTTLXLXXXXXXXQD-Xnb—COOH (L-IB generic (s)) [SEQ ID NO: 143] and/or the JNK binding domain (JBDs) of IB1 XRPTTLXLXXXXXXXQDS/TX (LIB (generic)) [SEQ ID NO: 151]. In this context, each X typically represents an amino acid residue, preferably selected from any (native) amino acid residue. Xna typically represents one amino acid residue, preferably selected from any amino acid residue except serine or threonine, wherein n (the number of repetitions of X) is 0 or 1. Furthermore, each Xnb may be selected from any amino acid residue, wherein n (the number of repetitions of X) is 0-5, 5-10, 10-15, 15-20, 20-30 or more, provided that if n (the number of repetitions of X) is 0 for Xna, Xnb does preferably not comprise a serine or threonine at its C-terminus, in order to avoid a serine or threonine at this position. Preferably, Xnb represents a contiguous stretch of peptide residues derived from SEQ ID NOs: 141 or 143. Xna and Xnb may represent either D or L amino acids. Additionally, the JNK inhibitor sequence as used herein may comprise or consist of at least one (native) amino acid sequence selected from the group comprising the JNK binding domain of IB1 DTYRPKRPTTLNLFPQVPRSQDT (L-IB1) [SEQ ID NO: 149]. More preferably, the JNK inhibitor sequence as used herein further may comprise or consist of at least one (native) amino acid sequence NH2-RPKRPTTLNLFPQVPRSQD-COOH (L-IB1(s)) [SEQ ID NO: 141]. Furthermore, the JNK inhibitor sequence as used herein may comprise or consist of at least one (native) amino acid sequence selected from the group comprising the JNK binding domain of IB1 L-IB1(s1) (NH2-TLNLFPQVPRSQD-COOH, SEQ ID NO: 153); L-IB1(s2) (NH2-TTLNLFPQVPRSQ-COOH, SEQ ID NO: 154); L-IB1(s3) (NH2-PTTLNLFPQVPRS-COOH, SEQ ID NO: 155); L-IB1(s4) (NH2-RPTTLNLFPQVPR-COOH, SEQ ID NO: 156); L-IB1(s5) (NH2-KRPTTLNLFPQVP-COOH, SEQ ID NO: 157); L-IB1(s6) (NH2-PKRPTTLNLFPQV-COOH, SEQ ID NO: 158); L-IB1(s7) (NH2-RPKRPTTLNLFPQ-COOH, SEQ ID NO: 159); L-IB1(s8) (NH2-LNLFPQVPRSQD-COOH, SEQ ID NO: 160); L-IB1(s9) (NH2-TLNLFPQVPRSQ-COOH, SEQ ID NO: 161); L-IB1(s10) (NH2-TTLNLFPQVPRS-COOH, SEQ ID NO: 162); L-IB1(s11) (NH2-PTTLNLFPQVPR-COOH, SEQ ID NO: 163); L-IB1(s12) (NH2-RPTTLNLFPQVP-COOH, SEQ ID NO: 164); L-IB1(s13) (NFI2-KRPTTLNLFPQV-COOH, SEQ ID NO: 165); L-IB1(s14) (NH2-PKRPTTLNLFPQ-COOH, SEQ ID NO: 166); L-IB1(s15) (NH2-RPKRPTTLNLFP-COOH, SEQ ID NO: 167); L-IB1(s16) (NH2-NLFPQVPRSQD-COOH, SEQ ID NO: 168); L-IB1(s17) (NH2-LNLFPQVPRSQ-COOH, SEQ ID NO: 169); L-IB1(s18) (NH2-TLNLFPQVPRS-COOH, SEQ ID NO: 170); L-IB1(s19) (NH2-TTLNLFPQVPR-COOH, SEQ ID NO: 171); L-IB1(s20) (NH2-PTTLNLFPQVP-COOH, SEQ ID NO: 172); L-IB1(s21) (NH2-RPTTLNLFPQV-COOH, SEQ ID NO: 173); L-IB1(s22) (NH2-KRPTTLNLFPQ-COOH, SEQ ID NO: 174); L-IB1(s23) (NH2-PKRPTTLNLFP-COOH, SEQ ID NO: 175); L-IB1(s24) (NH2-RPKRPTTLNLF-COOH, SEQ ID NO: 176); L-IB1(s25) (NH2-LFPQVPRSQD-COOH, SEQ ID NO: 177); L-IB1(s26) (NH2-NLFPQVPRSQ-COOH, SEQ ID NO: 178); L-IB1(s27) (NH2-LNLFPQVPRS-COOH, SEQ ID NO: 179); L-IB1(s28) (NH2-TLNLFPQVPR-COOH, SEQ ID NO: 180); L-IB1(s29) (NH2-TTLNLFPQVP-COOH, SEQ ID NO: 181); L-IB1(s30) (NH2-PTTLNLFPQV-COOH, SEQ ID NO: 182); L-IB1(s31) (NH2-RPTTLNLFPQ-COOH, SEQ ID NO: 183); L-IB1(s32) (NH2-KRPTTLNLFP-COOH, SEQ ID NO: 184); L-IB1(s33) (NH2-PKRPTTLNLF-COOH, SEQ ID NO: 185); and L-IB1(s34) (NH2-RPKRPTTLNL-COOH, SEQ ID NO: 186).
Additionally, the JNK inhibitor sequence suitable as component (B) of the inventive transporter cargo conjugate molecule may comprise or consist of at least one (native) amino acid sequence selected from the group comprising the (long) JNK binding domain (JBDs) of IB1 PGTGCGDTYRPKRPTTLNLFPQVPRSQDT (IB1-long) [SEQ ID NO: 145], the (long) JNK binding domain of IB2 IPSPSVEEPHKHRPTTLRLTTLGAQDS (IB2-long) [SEQ ID NO: 146], the JNK binding domain of c-Jun GAYGYSNPKILKQSMTLNLADPVGNLKPH (c-Jun) [SEQ ID NO: 147], the JNK binding domain of ATF2 TNEDHLAVHKHKHEMTLKFGPARNDSVIV (ATF2) [SEQ ID NO: 148]). In this context, an alignment revealed a partially conserved 8 amino acid sequence and a further comparison of the JBDs of IB1 and IB2 revealed two blocks of seven and three amino acids that are highly conserved between the two sequences.
According to another preferred embodiment the JNK inhibitor sequence suitable as component (B) of the inventive transporter cargo conjugate molecule may be composed in part or exclusively of D-amino acids as defined above. More preferably, these JNK inhibitor sequences composed of D-amino acids are non-native D retro-inverso sequences of the above (native) JNK inhibitor sequences. The term “retro-inverso sequences” refers to an isomer of a linear peptide sequence in which the direction of the sequence is reversed and the chirality of each amino acid residue is inverted (see e.g. Jameson et al., Nature, 368, 744-746 (1994); Brady et al., Nature, 368, 692-693 (1994)). The advantage of combining D-enantiomers and reverse synthesis is that the positions of carbonyl and amino groups in each amide bond are exchanged, while the position of the side-chain groups at each alpha carbon is preserved. Unless specifically stated otherwise, it is presumed that any given L-amino acid sequence or peptide as used according to the present invention may be converted into an D retro-inverso sequence or peptide by synthesizing a reverse of the sequence or peptide for the corresponding native L-amino acid sequence or peptide.
Accordingly, the JNK inhibitor sequence suitable as component (B) of the inventive transporter cargo conjugate molecule may comprise or consist of at least one D retro-inverso sequence according to the amino acid sequence NH2—Xnb-DQXXXXXXXLXLTTPR-Xna—Xnb—COOH (D-IB1 generic (s)) [SEQ ID NO: 144] and/or XS/TDQXXXXXXXLXLTTPRX (D-IB (generic)) [SEQ ID NO: 152]. As used in this context, X, Xna and Xnb are as defined above (preferably, representing D amino acids), wherein Xub preferably represents a contiguous stretch of residues derived from SEQ ID NO: 142 or 144. Additionally, the JNK inhibitor sequences as used herein may comprise or consist of at least one D retro-inverso sequence according to the amino acid sequence comprising the JNK binding domain (JBDs) of IB1 TDQSRPVQPFLNLTTPRKPRYTD (D-IB1) [SEQ ID NO: 150]. More preferably, the JNK inhibitor sequences as used herein may comprise or consist of at least one D retro-inverso sequence according to the amino acid sequence NH2-DQSRPVQPFLNLTTPRKPR-COOH (D-IB1(s)) [SEQ ID NO: 142]. Furthermore, the JNK inhibitor sequences as used herein may comprise or consist of at least one D retro-inverso sequence according to the amino acid sequence comprising the JNK binding domain (JBDs) of IB1 D-IB1(s1) (NH2-QPFLNLTTPRKPR-COOH, SEQ ID NO: 187); D-IB1(s2) (NH2-VQPFLNLTTPRKP-COOH, SEQ ID NO: 188); D-IB1(s3) (NH2-PVQPFLNLTTPRK-COOH, SEQ ID NO: 189); D-IB1(s4) (NH2-RPVQPFLNLTTPR-COOH, SEQ ID NO: 190); D-IB1(s5) (NH2-SRPVQPFLNLTTP-COOH, SEQ ID NO: 191); D-IB1(s6) (NH2-QSRPVQPFLNLTT-COOH, SEQ ID NO: 192); D-IB1(s7) (NH2-DQSRPVQPFLNLT-COOH, SEQ ID NO: 193); D-IB1(s8) (NH2-PFLNLTTPRKPR-COOH, SEQ ID NO: 194); D-IB1(s9) (NH2-QPFLNLTTPRKP-COOH, SEQ ID NO: 195); D-IB1(s10) (NH2-VQPFLNLTTPRK-COOH, SEQ ID NO: 196); D-IB1(s11) (NH2-PVQPFLNLTTPR-COOH, SEQ ID NO: 197); D-IB1(s12) (NH2-RPVQPFLNLTTP-COOH, SEQ ID NO: 198); D-IB1(s13) (NH2-SRPVQPFLNLTT-COOH, SEQ ID NO: 199); D-IB1(s14) (NH2-QSRPVQPFLNLT-COOH, SEQ ID NO: 200); D-IB1(s15) (NH2-DQSRPVQPFLNL-COOH, SEQ ID NO: 201); D-IB1(s16) (NH2-FLNLTTPRKPR-COOH, SEQ ID NO: 202); D-IB1(s17) (NH2-PFLNLTTPRKP-COOH, SEQ ID NO: 203); D-IB1(s18) (NH2-QPFLNLTTPRK-COOH, SEQ ID NO: 204); D-IB1(s19) (NH2-VQPFLNLTTPR-COOH, SEQ ID NO: 205); D-IB1(s20) (NH2-PVQPFLNLTTP-COOH, SEQ ID NO: 206); D-IB1(s21) (NH2-RPVQPFLNLTT-COOH, SEQ ID NO: 207); D-IB1(s22) (NH2-SRPVQPFLNLT-COOH, SEQ ID NO: 208); D-IB1(s23) (NH2-QSRPVQPFLNL-COOH, SEQ ID NO: 209); D-IB1(s24) (NH2-DQSRPVQPFLN-COOH, SEQ ID NO: 210); D-IB1(s25) (NH2-DQSRPVQPFL-COOH, SEQ ID NO: 211); D-IB1(s26) (NH2-QSRPVQPFLN-COOH, SEQ ID NO: 212); D-IB1(s27) (NH2-SRPVQPFLNL-COOH, SEQ ID NO: 213); D-IB1(s28) (NH2-RPVQPFLNLT-COOH, SEQ ID NO: 214); D-IB1(s29) (NH2-PVQPFLNLTT-COOH, SEQ ID NO: 215); D-IB1(s30) (NH2-VQPFLNLTTP-COOH, SEQ ID NO: 216); D-IB1(s31) (NH2-QPFLNLTTPR-COOH, SEQ ID NO: 217); D-IB1(s32) (NH2-PFLNLTTPRK-COOH, SEQ ID NO: 218); D-IB1(s33) (NH2-FLNLTTPRKP-COOH, SEQ ID NO: 219); and D-IB1(s34) (NH2-LNLTTPRKPR-COOH, SEQ ID NO: 220).
Exemplary JNK inhibitor sequence suitable as component (B) of the inventive transporter cargo conjugate molecule and are presented in Table 4 (SEQ ID NO:s 141 to 220). The table presents the name of the JNK inhibitor sequences as used herein, as well as their sequence identifier number, their length, and amino acid sequence. Furthermore, Table 4 shows IB1 derived sequences as well as their generic formulas, e.g. for SEQ ID NO's: 141 and 142 and SEQ ID NO's: 143 and 144, respectively. Table 4 furthermore discloses L-IB1 sequences according to SEQ ID NOs: 153 to 186 and D-IB1 sequences SEQ ID NOs: 187 to 220.
The JNK inhibitor sequences suitable as component (B) of the inventive transporter cargo conjugate molecule may furthermore comprises or consists of at least one variant, fragment and/or derivative of the above defined native or non-native amino acid sequences according to SEQ ID NOs: 141 to 220. Preferably, these variants, fragments and/or derivatives retain biological activity of the above disclosed native or non-native JNK inhibitor sequences as used herein, particularly of native or non-native amino acid sequences according to SEQ ID NOs: 141 to 220, i.e. binding JNK and/or inhibiting the activation of at least one JNK activated transcription factor, e.g. c-Jun, ATF2 or Elk1. Functionality may be tested by various tests, e.g. binding tests of the peptide to its target molecule or by biophysical methods, e.g. spectroscopy, computer modeling, structural analysis, etc. Particularly, an JNK inhibitor sequence or variants, fragments and/or derivatives thereof as defined above may be analyzed by hydrophilicity analysis (see e.g. Hopp and Woods, 1981. Proc Natl Acad Sci USA 78: 3824-3828) that can be utilized to identify the hydrophobic and hydrophilic regions of the peptides, thus aiding in the design of substrates for experimental manipulation, such as in binding experiments, or for antibody synthesis. Secondary structural analysis may also be performed to identify regions of an JNK inhibitor sequence or of variants, fragments and/or derivatives thereof as used herein that assume specific structural motifs (see e.g. Chou and Fasman, 1974, Biochem 13: 222-223).
Manipulation, translation, secondary structure prediction, hydrophilicity and hydrophobicity profiles, open reading frame prediction and plotting, and determination of sequence homologies can be accomplished using computer software programs available in the art. Other methods of structural analysis include, e.g. X-ray crystallography (see e.g. Engstrom, 1974. Biochem Exp Biol 11: 7-13), mass spectroscopy and gas chromatography (see e.g. METHODS IN PROTEIN SCIENCE, 1997, J. Wiley and Sons, New York, N.Y.) and computer modeling (see e.g. Fletterick and Zoller, eds., 1986. Computer Graphics and Molecular Modeling, In: CURRENT COMMUNICATIONS IN MOLECULAR BIOLOGY, Cold Spring Harbor Laboratory Press, Cold Spring Harbor, N.Y.) may also be employed.
Accordingly, the JNK inhibitor sequence suitable as component (B) of the inventive transporter cargo conjugate molecule may comprise or consist of at least one variant of (native or non-native) amino acid sequences according to SEQ ID NOs: 141 to 220. In the context of the present invention, a “variant of a (native or non-native) amino acid sequence according to SEQ ID NOs: 141 to 220” is preferably a sequence derived from any of the sequences according to SEQ ID NOs: 141 to 220, wherein the variant comprises amino acid alterations of the amino acid sequences according to SEQ ID NOs: 141 to 220. Such alterations typically comprise 1 to 20, preferably 1 to 10 and more preferably 1 to 5 substitutions, additions and/or deletions of amino acids according to SEQ ID NOs: 141 to 220, wherein the variant exhibits a sequence identity with any of the sequences according to SEQ ID NOs: 141 to 220 of at least about 30%, 50%, 70%, 80%, 90%, 95%, 98% or even 99%. If variants of (native or non-native) amino acid sequences according to SEQ ID NOs: 141 to 220 as defined above and used herein are obtained by substitution of specific amino acids, such substitutions preferably comprise conservative amino acid substitutions as already defined above.
Effector molecules suitable as component (B) of the inventive transporter cargo conjugate molecule may furthermore be selected from antigens or antigenic fragments, preferably protein and peptide antigens, e.g. tumor antigens or antigenic fragments thereof, allergy antigens or antigenic fragments thereof, auto-immune self-antigens or antigenic fragments thereof, pathogenic antigens or antigenic fragments thereof, and antigens or antigenic fragments thereof from viruses, preferably from cytomegalovirus (CMV), orthopox variola virus, orthopox alastrim virus, parapox ovis virus, molluscum contagiosum virus, herpes simplex virus 1, herpes simplex virus 2, herpes B virus, varicella zoster virus, pseudorabies virus, human cytomegaly virus, human herpes virus 6, human herpes virus 7, Epstein-Barr virus, human herpes virus 8, hepatitis B virus, chikungunya virus, O'nyong'nyong virus, rubivirus, hepatitis C virus, GB virus C, West Nile virus, dengue virus, yellow fever virus, louping ill virus, St. Louis encephalitis virus, Japan B encephalitis virus, Powassan virus, FSME virus, SARS, SARS-associated corona virus, human corona virus 229E, human corona virus Oc43, Torovirus, human T cell lymphotropic virus type I, human T cell lymphotropic virus type II, HIV (AIDS), i.e. human immunodeficiency virus type 1 or human immunodeficiency virus type 2, influenza virus, Lassa virus, lymphocytic choriomeningitis virus, Tacaribe virus, Junin virus, Machupo virus, Borna disease virus, Bunyamwera virus, California encephalitis virus, Rift Valley fever virus, sand fly fever virus, Toscana virus, Crimean-Congo haemorrhagic fever virus, Hazara virus, Khasan virus, Hantaan virus, Seoul virus, Prospect Hill virus, Puumala virus, Dobrava Belgrade virus, Tula virus, sin nombre virus, Lake Victoria Marburg virus, Zaire Ebola virus, Sudan Ebola virus, Ivory Coast Ebola virus, influenza virus A, influenza virus B, influenza viruses C, parainfluenza virus, malaria virus, Marburg virus, measles virus, mumps virus, respiratory syncytial virus, human metapneumovirus, vesicular stomatitis Indiana virus, rabies virus, Mokola virus, Duvenhage virus, European bat lyssavirus 1+2, Australian bat lyssavirus, adenoviruses A-F, human papilloma viruses, condyloma virus 6, condyloma virus 11, polyoma viruses, adeno-associated virus 2, rotaviruses, orbiviruses, Varicella including Varizella zoster, etc., or antigens or antigenic fragments from leishmania, typanosomes, amibes, bacteria, etc., or may be selected from epitopes or from variants of the above antigens or antigenic fragments. Preferably, fragments as well as variants of antigens as defined above exhibit a sequence homology or identity of about 10%, about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 80%, or about 90% with one of the antigens or antigen sequences as shown or described above. In this context, the definition of fragments and variants similarly applies as defined above for component (A) of the inventive transporter cargo conjugate molecule. Furthermore, epitopes (also called “antigen determinants”) of antigens or antigenic fragments as defined above are encompassed, Epitopes in the context of the present invention are typically fragments located on the outer surface of (native) protein or peptide antigens as defined herein, preferably having 5 to 15 amino acids, more preferably having 5 to 12 amino acids, even more preferably having 6 to 9 amino acids, which may be recognized by antibodies, i.e. in their native form.
Furthermore, effector molecules suitable as component (B) of the inventive transporter cargo conjugate molecule may be selected from antibodies. According to the present invention, such an antibody may be selected from any antibody, e.g. any recombinantly produced or naturally occurring antibodies, known in the art, in particular antibodies suitable for therapeutic, diagnostic or scientific purposes, or antibodies which have been identified in relation to specific cancer diseases. Herein, the term “antibody” is used in its broadest sense and specifically covers monoclonal and polyclonal antibodies (including agonist, antagonist, and blocking or neutralizing antibodies) and antibody species with polyepitopic specificity. According to the invention, “antibody” typically comprises any antibody known in the art (e.g. IgM, IgD, IgG, IgA and IgE antibodies), such as naturally occurring antibodies, antibodies generated by immunization in a host organism, antibodies which were isolated and identified from naturally occurring antibodies or antibodies generated by immunization in a host organism and recombinantly produced by biomolecular methods known in the art, as well as chimeric antibodies, human antibodies, humanized antibodies, bispecific antibodies, intrabodies, i.e. antibodies expressed in cells and optionally localized in specific cell compartments, and fragments and variants of the aforementioned antibodies. In general, an antibody consists of a light chain and a heavy chain both having variable and constant domains. The light chain consists of an N-terminal variable domain, VL, and a C-terminal constant domain, CL. In contrast, the heavy chain of the IgG antibody, for example, is comprised of an N-terminal variable domain, VH, and three constant domains, CH1, CH2 and CH3. Antibodies in this context also comprise fragments and variants of antibodies as described above, e.g. an Fab fragment, an Fc fragment, etc. Preferably, such fragments as well as variants exhibit a sequence homology or identity of about 10%, about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 80%, or about 90% with one of the antibodies as described above. In this context, the definition of fragments and variants similarly applies as defined above for component (A) of the inventive transporter cargo conjugate molecule.
Additionally, effector molecules suitable as component (B) of the inventive transporter cargo conjugate molecule may be selected from apoptotic factors or apoptosis related proteins including AIF, Apaf e.g. Apaf-1, Apaf-2, Apaf-3, oder APO-2 (L), APO-3 (L), Apopain, Bad, Bak, Bax, Bcl-2, Bcl-xL, Bcl-xS, bik, Bok, CAD, Calpain, Caspase e.g. Caspase-1, Caspase-2, Caspase-3, Caspase-4, Caspase-5, Caspase-6, Caspase-7, Caspase-8, Caspase-9, Caspase-10, Caspase-11, ced-3, ced-9, c-Jun, c-Myc, crm A, cytochrom C, CdR1, DcR1, DD, DED, DISC, DNA-PKCS, DR3, DR4, DR5, FADD/MORT-1, FAK, Fas (Fas-ligand CD95/fas (receptor)), FLICE/MACH, FLIP, fodrin, fos, G-Actin, Gas-2, gelsolin, granzyme A/B, ICAD, ICE, JNK, lamin A/B, MAP, Max, MCL-1, Mdm-2, MEKK-1, MORT-1, Myd88, NEDD, NF-kappaB, NuMa, p38, p53, PAK-2, PARP, perforin, PITSLRE, PKCdelta, pRb, presenilin, prICE, RAIDD, Ras, RIP, sphingomyelinase, thymidinkinase from herpes simplex, TRADD, TRAF2, TRAIL-R1, TRAIL-R2, TRAIL-R3, transglutaminase, etc., or from fragments or variants thereof, or from components of the wnt-signalling pathway, such as β-catenine, or the ICF-family, pololike kinases, CiP2A, PP2A, etc., or from fragments or variants thereof. Preferably, such fragments as well as variants exhibit a sequence homology or identity of about 10%, about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 80%, or about 90% with one of the sequences as shown or described above. In this context, the definition of fragments and variants similarly applies as defined above for component (A) of the inventive transporter cargo conjugate molecule.
Effector molecules suitable as component (B) of the inventive transporter cargo conjugate molecule may furthermore be selected from at least one or more partial or full-length BH3-domain and/or at least one partial or full-length BH3-only protein. In this context, BH3-only proteins are preferably defined as members of the BcI-2 family representing regulators of apoptosis by interacting with other members of BcI-2 family. In the context of the present invention component (B) of the inventive transporter cargo conjugate molecule may thus be selected from an amino acid sequence comprising at least one or more partial or full-length BH3-domain sequence(s) of a BH3-only protein or a partial or full-length BH3-only protein (defined as a subclass of the BcI-2 family proteins), which is (are) capable of inducing apoptosis by either interacting with at least one BcI-2 family protein or by activating or sensitising at least one pro-apoptotic member of the Bcl-2 family. Their functional activity can be tested by suitable assay methods, e.g. by binding assays or by assaying its pro-apoptotic activity by apoptosis assays. Preferably, an amino acid sequence used as component (B) of the inventive transporter cargo conjugate molecule may comprise or consist of at least one partial or full-length BH3-domain sequence and/or at least one partial or full-length BH3-only protein sequence selected from the group consisting of Bid, Bad, Noxa, Puma, Bim, Bik, Bmf, DP5/Hrk and Bok. Alternatively, an amino acid sequence used as component (B) of the inventive transporter cargo conjugate molecule may comprise or consist of a combination of at least one partial or full-length BH3-domain sequence and/or at least one partial or full-length BH3-only protein sequence, the combinations preferably selected from the group consisting of e.g. Bid and Bad, Bim and Bad, Bik and Bad, Puma and Bad, Noxa and Bad, Bmf and Bad, DP5/Hrk and Bad, Bok and Bad, Bik and Bim, Bik and Bid, Bik and Puma, Bik and Noxa, Bik and Bmf, Bik and DP5/Hrk, Bik and Bok, Bid and Puma, Bid and Noxa, Bid and Bim, Bid and Bmf, Bid and DP5/Hrk, Bid and Bok, Bim and Noxa, Bim and Puma, Bim and Bmf, Bim and DP5/Hrk, Bim and Bok, Puma and Noxa, Puma and Bmf, Puma and DP5/Hrk, Puma and Bok, Noxa and Bmf, Noxa and DP5/Hrk and Noxa and Bok. The (full-length or partial) BH3-sequences or BH3-only protein sequences defined above may be selected from e.g. any mammalian BH3-only protein, in particular from the human isoforms. Accordingly, component (B) of the inventive transporter cargo conjugate molecule may comprise or consist of at least one partial or full-length BH3-domain sequence and/or at least one BH3-only protein sequence as defined by any of SEQ ID NOs: 221 to 237 (see Table 5). Preferably, an amino acid sequence used as component (B) of the inventive transporter cargo conjugate molecule may further comprise or consist of at least one fragment or variant of at least one partial or full-length BH3-domain sequence and/or at least one BH3-only protein sequence as defined by any of SEQ ID NOs: 221 to 237. Such fragments as well as variants preferably have a sequence length of less than 50, preferably of less than 40 and even more preferably of less than 30 amino acids, or exhibit a sequence homology or identity of about 10%, about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 80%, or about 90% with one of the sequences described above or as shown in any of SEQ ID NOs: 221 to 237. In this context, the definition of fragments and variants similarly applies as defined above for component (A) of the inventive transporter cargo conjugate molecule. Furthermore, fragments or variants of the native sequences typically comprise a BH3-domain sequence or at least partially comprise a BH3-domain sequence (at least 7 amino acids of the BH3-domain sequence).
The proteins or peptide sequences as described above, e.g. of therapeutically active proteins, antigens, antibodies, apoptotic factors, proteases implicated in pathological states, preferably peptidic protease inhibitors, BH3 domains, etc., which are used as effector molecules for component (B) of the inventive transporter cargo conjugate molecule, may be provided in as a protein or peptide sequence either in the native form composed of L-amino acids or in the retro-inverso D-form ((entirely) composed of D amino acids, which means that these sequences have to be inverted by reverting the termini: native C-terminus is the N-terminus of the inverted form and the native N-terminus is the C-Terminus of the inverted form). Alternatively, these proteins or peptide sequences as described above, may provide their protein or peptide sequence as a mixture of L-amino acids and D-amino acids.
Effector molecules suitable as component (B) of the inventive transporter cargo conjugate molecule may additionally be selected from nucleic acids, preferably from nucleic acids encoding the above defined proteins or peptides, such as therapeutically active proteins and peptides, antigens, antibodies, apoptotic factors, proteases implicated in pathological states, preferably peptidic protease inhibitors, BH3-domains or partial or full-length BH3-only proteins or their variants of fragments. In this context, nucleic acids preferably comprise single stranded, double stranded or partially double stranded nucleic acids, preferably selected from genomic DNA, cDNA, RNA, siRNA, antisense DNA, antisense RNA, ribozyme, complimentary RNA/DNA sequences with or without expression elements, a mini-gene, gene fragments, regulatory elements, promoters, and combinations thereof.
As a further particular example, effector molecules suitable as component (B) of the inventive transporter cargo conjugate molecule may be selected from siRNAs. In this context, an siRNAs is of interest particularly in connection with the phenomenon of RNA interference. Attention was drawn to the phenomenon of RNA interference in the course of immunological research. In recent years, a RNA-based defence mechanism has been discovered, which occurs both in the kingdom of the fungi and in the plant and animal kingdom and acts as an “immune system of the genome”. The system was originally described in various species independently of one another, first in C. elegans, before it was possible to identify the underlying mechanisms of the processes as being identical: RNA-mediated virus resistance in plants, PTGS (posttranscriptional gene silencing) in plants, and RNA interference in eukaryotes are accordingly based on a common procedure. The in vitro technique of RNA interference (RNAi) is based on double-stranded RNA molecules (dsRNA), which trigger the sequence-specific suppression of gene expression (Zamore (2001) Nat. Struct. Biol. 9: 746-750; Sharp (2001) Genes Dev. 5:485-490: Hannon (2002) Nature 41: 244-251). In the transfection of mammalian cells with long dsRNA, the activation of protein kinase R and RnaseL brings about unspecific effects, such as, for example, an interferon response (Stark et al. (1998) Annu. Rev. Biochem. 67: 227-264; He and Katze (2002) Viral Immunol. 15: 95-119). These unspecific effects are avoided when shorter, for example 21- to 23-mer, so-called siRNA (small interfering RNA), is used, because unspecific effects are not triggered by siRNA that is shorter than 30 by (Elbashir et al. (2001) Nature 411: 494-498). Recently, dsRNA molecules have also been used in vivo (McCaffrey et al. (2002), Nature 418: 38-39; Xia et al. (2002), Nature Biotech. 20: 1006-1010; Brummelkamp et al. (2002), Cancer Cell 2: 243-247). Thus, an siRNA used as an effector molecule suitable as component (B) of the inventive transporter cargo conjugate molecule typically comprises a (single- or) double stranded, preferably a double-stranded, RNA sequence with about 8 to 30 nucleotides, preferably 17 to 25 nucleotides, even more preferably from 20 to 25 and most preferably from 21 to 23 nucleotides. In principle, all the sections having a length of from 17 to 29, preferably from 19 to 25, most preferably from 21 to 23 base pairs that occur in the coding region of a protein (sequence) as mentioned above, can serve as target sequence for a siRNA. Equally, siRNAs can also be directed against nucleotide sequences of a protein (sequence) described hereinbefore that do not lie in the coding region, in particular in the 5′ non-coding region of the RNA, for example, therefore, against non-coding regions of the RNA having a regulatory function. The target sequence of the siRNA can therefore lie in the translated and/or untranslated region of the RNA and/or in the region of the control elements. The target sequence of a siRNA can also lie in the overlapping region of untranslated and translated sequence; in particular, the target sequence can comprise at least one nucleotide upstream of the start triplet of the coding region.
As another particular example, effector molecules suitable as component (B) of the inventive transporter cargo conjugate molecule may be selected from antisense RNA. In this context, an antisense RNA is preferably a (single-stranded) RNA molecule transcribed on the basis of the coding, rather than the template, strand of (genomic) DNA, so that it is complementary to the sense (messenger) RNA. An antisense RNA suitable as component (B) of the inventive transporter cargo conjugate molecule typically forms a duplex between the sense and antisense RNA molecules and is thus capable to block translation of the corresponding mRNA. An antisense RNA as used herein can be directed against any portion of an mRNA sequence, e.g. derived from genomic DNA and/or which may encode any protein, e.g. a protein peptide as defined herein such as therapeutically active proteins and peptides, antigens, antibodies, apoptotic factors, proteases implicated in pathological states, preferably peptidic protease inhibitors, BH3-domains or partial or full-length BH3-only proteins or their variants of fragments as described hereinbefore, if thereby translation of the encoded protein or peptide is reduced/suppressed. Accordingly, the target sequence of the antisense RNA on the targeted mRNA (or the targeted (genomic) DNA) may be located in the translated and/or untranslated region of the mRNA (or the targeted (genomic) DNA), e.g. in the region of the control elements, in particular in the 5′ non-coding region of the mRNA (or the targeted (genomic) DNA) exerting a regulatory function. The target sequence of an antisense RNA on the targeted mRNA (or the targeted (genomic) DNA) may also be constructed such that the antisense RNA binds to the mRNA (or the targeted (genomic) DNA) by covering with its sequence a region which is partially complementary to the untranslated and to translated (coding) sequence of the targeted mRNA (or the targeted (genomic) DNA); in particular, the antisense RNA may be complementary to the target mRNA (or the targeted (genomic) DNA) sequence by at least one nucleotide upstream of the start triplet of the coding region of the targeted mRNA. Preferably, the antisense RNA as used herein comprises a length of about 5 to about 5000, of about 500 to about 5000, and, more preferably, of about 1000 to about 5000 or, alternatively, of about 5 to about 1000, about 5 to about 500, about 5 to about 250, of about 5 to about 100, of about 5 to about 50 or of about 5 to about 30 nucleotides, or, alternatively, and even more preferably a length of about 20 to about 100, of about 20 to about 80, or of about 20 to about 60 nucleotides.
As a further particular example, effector molecules suitable as component (B) of the inventive transporter cargo conjugate molecule may additionally be selected from a cytotoxic or anti-tumor drug, suitable as a chemotherapy drug. In general, chemotherapy drugs suitable for component (B) of the inventive transporter cargo conjugate molecule can be divided into three main categories based on their mechanism of action. They may (a) stop the synthesis of preDNA molecule building blocks: These agents work in a number of different ways. DNA building blocks are folic acid, heterocyclic bases, and nucleotides, which are made naturally within cells. All of these agents work to block some step in the formation of nucleotides or deoxyribonucleotides (necessary for making DNA). When these steps are blocked, the nucleotides, which are the building blocks of DNA and RNA, cannot be synthesized. Thus the cells cannot replicate because they cannot make DNA without the nucleotides. Examples of drugs in this class include methotrexate (Abitrexate®), fluorouracil (Adrucil®), hydroxyurea (Hydrea®), and mercaptopurine (Purinethol®), thioguanine, tocoferol, or, more generally, also any nucleotide analogue, e.g. 2′-deoxycytidine analogues. Alternatively, chemotherapy drugs may (b) directly damage the DNA in the nucleus of the cell. These agents chemically damage DNA and RNA. They disrupt replication of the DNA and either totally halt replication or cause the manufacture of nonsense DNA or RNA (i.e. the new DNA or RNA does not code for anything useful). Examples of drugs in this class include cisplatin (Platinol®) and antibiotics—daunorubicin (Cerubidine), doxorubicin (Adriamycin®) belonging to the class of anthracycline antitumor agents (the members of which may be used as component (B) of the inventive transporter cargo conjugate molecule), and etoposide (VePesid®) or any intercalator. Finally, chemotherapy drugs may (c) effect the synthesis or breakdown of the mitotic spindles: Mitotic spindles serve as molecular railroads with “North and South Poles” in the cell when a cell starts to divide itself into two new cells. These spindles are very important because they help to split the newly copied DNA such that a copy goes to each of the two new cells during cell division. These drugs disrupt the formation of these spindles and therefore interrupt cell division. Examples of drugs in this class of mitotic disrupters include: Vinblastine (Velban®), Vincristine (Oncovin®) and Paclitaxel (Taxol®). Component (B) of the inventive transporter cargo conjugate molecule may act according to one of the above modes of action. In other terms, each of the classes of anti-tumor drugs, i.e. alkylating agents, nitrosoureas, antimetabolites, plant alkaloids, antitumor antibiotics, and steroid hormones may be used as component (B) of the inventive transporter cargo conjugate molecule. To describe these drug classes in more detail it is emphasized that each anti cancer drug may also be categorized according to its effect on the cell cycle and cell chemistry as disclosed above. Alkylating agents kill cells by directly attacking DNA. Alkylating agents may be used in the treatment of chronic leukemias, Hodgkin's disease, lymphomas, and certain carcinomas of the lung, breast, prostate and ovary. Cyclophosphamide is an example of a commonly used alkylating agent. Nitrosoureas act similarly to alkylating agents and also inhibit changes necessary for DNA repair. These agents cross the blood-brain barrier and are therefore used to treat brain tumors, lymphomas, multiple myeloma, and malignant melanoma. Carmustine and lomustine are the major drugs in this category. Antimetabolites are that drugs block cell growth by interfering with certain activities, usually DNA synthesis. Once ingested into the cell they halt normal development and reproduction. All drugs in this category affect the cell during the “S” phase of the cell cycle. Antimetabolites may be used in the treatment of acute and chronic leukemias, choriocarcinoma, and some tumors of the gastrointestinal tract, breast and ovary. Examples of commonly used antimetabolites are 6-mercaptopurine and 5-fluorouracil (5FU). Antitumor antibiotics are a diverse group of compounds. In general, they act by binding with DNA and preventing RNA synthesis. These agents are widely used in the treatment of a variety of cancers. The most commonly used drugs in this group are doxorubicin (Adriamycin), mitomycin-C, and bleomycin. Plant (vinca)alkaloids are anti-tumor agents derived from plants. These drugs act specifically by blocking cell division during mitosis. They are commonly used in the treatment of acute lymphoblastic leukemia, Hodgkin's and non-Hodgkin's lymphomas, neuroblastomas, Wilms' tumor, and cancers of the lung, breast and testes. Vincristine and vinblastine are commonly used agents in this group. Steroid hormones are useful in treating some types of tumors. This class includes adrenocorticosteroids, estrogens, antiestrogens, progesterones, and androgens. Although their specific mechanism of action is not clear, steroid hormones modify the growth of certain hormone-dependent cancers. Tamoxifen is an example, which is used for estrogen dependent breast cancer. All of the above-mentioned tumor species may be treated by the inventive transporter cargo conjugate molecules comprising as component (B) any of the above antitumor agents.
One group of cytotoxic or anti-tumor drugs, which may be used as effector molecules for component (B) of the inventive transporter cargo conjugate molecule is preferably selected from alkylating drugs, antimetabolica, cytostatics or drugs related to hormone treatment. In this context, it it is preferred to select as cytotoxic or anti-tumor drugs compounds of metal, in particular platin (derivative) and taxol classes. In particular, the drug moiety is selected from the group of drugs consisting of, for example, cisplatin, transplatin, satraplatin, oxaliplatin, carboplatin, nedaplatin, chlorambucil, cyclophosphamide, mephalan, azathioprin, fluorouracil, (6)-mercaptopurine, methrexate, nandrolone, aminogluthemide, medroxyprogesteron, megestrolacetate, procarbazin, docetaxel, paclitaxel, irinotecan, epipodophyl lotoxin, podophyl lotoxin, vincristine, vinblastine, docetaxel, daunomyci n, daunorubicin, doxorubicin, mitoxantrone, topotecan, bleomycin, gemcitabine, fludarabine, navelbine and 5-FUDR. Particularly preferred is the class of metal containing anticancer drugs, e.g. the class of platinum compounds.
Further cytotoxic or anti-tumor drugs, which may be used as effector molecules for component (B) of the inventive transporter cargo conjugate molecule are (identified by their generic name) Alitretinoin, Altretamine, Azathioprine, Bicalutamide, Busulfan, Capecitabine, Cyclophosphamide, Exemestane, Letrozole, Finasteride, Megestrol Acetate, Triptorelin, Temozolomide, Mifepristone, Tretinoin, Oral, Tamoxifen, Teniposide, Imatinib (Gleevec®), Gefitinib (IRESSA®), Peplomycin sulfate or the class of camptothecins.
Another group of cytotoxic or anti-tumor drugs, which may be used as effector molecules for component (B) of the inventive transporter cargo conjugate molecule are indolocarbazole compounds, e.g. staurosporin (and its analogues) and rebeccamycin. It is to be mentioned that compounds belonging to the class of anilinoquinazolines (e.g. gefitinib) are also particularly preferred as component (B).
A further group of cytotoxic or anti-tumor drugs, which may be used as effector molecules for component (B) of the inventive transporter cargo conjugate molecule may additionally be selected from inhibitors of topoisomerases, such as irinotecan, or mitotic kinesins or DHFR.
Additionally, cytotoxic or anti-tumor drugs, which may be used as effector molecules for component (B) of the inventive transporter cargo conjugate molecule can be selected from factors inhibiting or stimulating cell proliferation (PDGF), intracellular pathways, e.g the RAS/RAF signaling pathway, such as a member of the RAF/MEK/ERK signaling pathway (e.g. RAF-1) or mitogen-activated protein kinase pathway, CMGC kinase family (containing CDK (cyclin dependent-kinases), MAPK, GSK3, CLK), Ser/Thr kinases that belong to the AGC kinase family containing PKA, PKG, PKC kinase families, receptor tyrosine kinases involved e.g. in neovascularization and tumor progression, including vascular endothelial growth factor receptor (VEGFR)-2, VEGFR-3, platelet-derived growth factor receptor β, Flt-3, the endothelin (ET) system, that includes ET-1, ET-2, ET-3, and the ETA receptor (ETAR) and ETBR, and c-KIT, which are targeted by e.g. inhibiting their function, and members of the IGF-family, such as IGF-1, IGF-2, IGF-1R, IGF2R, etc.
Another group of cytotoxic or anti-tumor drugs, which may be used as effector molecules for component (B) of the inventive transporter cargo conjugate molecule may may be selected from inhibitors that target tumor cell proliferation and tumor angiogenesis. Particularly preferred in this context are small molecule antitumor kinase inhibitors directed toward targets on malignant cells and/or vascular cells have antiangiogenic activity. Kinase inhibitors such as those directed toward EGFR, Her2/neu, BCR-ABL, c-KIT, PKC, Raf and PI3, are antiangiogenic by virtue of blocking secretion of angiogenic factors by affected malignant cells. Kinase inhibitors such as those directed toward VEGFR2, VEGFR1, PDGFR, PKC, Raf and PI3, are antiangiogenic by effects on vascular cells. Examples of synthetic inhibitors of cyclin dependent kinases (CDKIs) are e.g. olomoucine, flavopiridol, butyrolactone and their derivatives and thus constrain tumor cell proliferation. On the other hand, antitumor compounds suitable as component (B) of the inventive transporter cargo conjugate molecule may be selected from activators of apoptosis programs in cancer cells (e.g. staurosporine) or by downregulating antiapoptotic proteins, e.g. Bcl-2.
It is common to all of the above compounds that they have to cross the cell membrane in order to act as anticancer drugs. By coupling compounds belonging to each of these classes (compounds directly damaging the DNA in the nucleus of the cell, effecting the synthesis or breakdown of the mitotic spindles or stopping the synthesis of pre-DNA molecule building blocks) as component (B) to component (A) to form the inventive transporter cargo conjugate molecule, the entry of the anticancer compounds into the cell is enhanced and/or their solubility is enhanced, thereby increasing the efficacy of these therapeutic compounds. In turn, increased cell take-up and, preferably, better solubility of these compounds in the aqueous environment (e.g. the cytosol) allows to lower the dosage of the therapeutic anti-cancer compound.
Additionally, component (B) of the inventive transporter cargo conjugate molecule may also comprise small organic compounds or drug molecules, such as protease inhibitors which inhibit proteases, in particular proteases which are involved in the infection cycle of infectious agents, e.g. viral, bacterial or protozoological proteases. In a preferred embodiment, these protease inhibitors (organic compounds or drug molecules) as part of an inventive conjugate molecule may serve to treat viral, bacterial infections or protozoological infections, e.g. malaria. In particular, virus infections may be treated by protease inhibitors, e.g. retroviral diseases. The use of conjugate molecules comprising protease inhibitors are strongly preferred for the treatment of HIV infections. The protease inhibitors to be used for coupling to carrier sequence as disclosed herein may be selected from a group containing the 640385, abacavir sulfate, AG1776, amprenavir (141W94 or VX-478), atazanavir (BMS-232632), Cathepsin S protease inhibitor, D1927, D9120, efavirenz, emtricitabine, enfuvirtide (T-20), fosamprenavir (GW-433908 or VX-175), GS 9005, GW640385 (VX-385), HCV protease inhibitor, indinavir (MK-639), L-756, 423, levopri n-ZG, lopinavir (ABT-378), lopinavir/ritonavir (LPV ABT-378/r), MK-944A, mozenavir (DMP450), nelfinavir (AG-1343), nevirapine, P-1946, PL-100, prinomastat, ritonavir (ABT-538), RO033-4649, TMC114, saquinavir (Ro-31-8959), tenofovir disoproxil fumarate, tipranavir (PNU-140690), TLK 19781, TMC-114, Vertex 385, VX-950.
Finally, effector molecules suitable as component (B) of the inventive transporter cargo conjugate molecule may additionally be selected as a separate component from a label as defined above for the inventive transporter cargo conjugate molecule. Such an inventive transporter cargo conjugate molecule is particularly suitable for in vitro or in vivo assays. In this context, labels may comprise radioactive labels, i.e. radioactive phosphorylation or a radioactive label with sulphur, hydrogen, carbon, nitrogen, etc.; colored dyes (e.g. digoxygenin, etc.); fluorescent groups (e.g. fluorescein, rhodamine, fluorochrome proteins as defined below, etc.); chemoluminescent groups; or combination of these labels. Preferably, fluorochrome proteins comprise any fluorochrome protein, which can be activated such as to emit a fluorescence signal. More preferably, the fluorochrome protein is selected from any fluorescent protein, e.g. from a group comprising the Green Fluorescent Protein (GFP), derivatives of the Green Fluorescent Protein (GFP), e.g. EGFP, AcGFP, TurboGFP, Emerald, Azami Green, the photo activatable-GFP (PA-GFP), or Blue Fluorescent Protein (BFP) including EBFP, Sapphire, T-Sapphire, or Cyan Fluorescent Proteins (CFP) including the enhanced cyan fluorescent protein (ECFP), mCFP, Cerulan, CyPet, or Yellow Fluorescent Proteins (YFP), including Topaz, Venus, mCitrine, Ypet, PhiYFP, mBanana, the yellow shifted green fluorescent protein (Yellow GFP), the enhanced yellow fluorescent protein (EYFP), or Orange and Red Flourescent Proteins (RFP) including Kusibara Orange, mOrange, dTomato-Tandem, DsRed-Monomer, mTangerine, mStrawberry, monomeric red fluorescent protein (mRFP1) (also designated herein as mRFP), mCherry, mRaspberry, HcRed-Tandem, mPlum, as well as optical highlighters selected from PA-GFP, CoralHue Dronpa (G), PS-CFP (C), PS-CFP (G), mEosFP (G), mEosFP (G), or other monomeric fluorescent proteins such as or the kindling fluorescent protein (KFP1), aequorin, the autofluorescent proteins (AFPs), or the fluorescent proteins JRed, TurboGFP, PhiYFP and PhiYFP-m, tHc-Red (HcRed-Tandem), PS-CFP2 and KFP-Red (as available from EVRΩGEN, see also www.evrogen.com), or other suitable fluorescent proteins.
The inventive transporter cargo conjugate molecule comprising components (A) and (B) may furthermore comprise at least one optional additional component (C), (D) and/or (E), etc., preferably different to component (B). This at least one optional additional portion may award additional functions to the inventive fusion protein and may be selected independent from other components (B), (C), (D) and/or (E).
For example, the at least one optional additional component (C), (D) and/or (E), etc., of the inventive transporter cargo conjugate molecule may be any of the effector molecules as described for component (B) above. Preferably, the at least one optional additional component (C), (D) and/or (E), etc., of the inventive transporter cargo conjugate molecule is not identical to the specifically selected component (B) of the inventive transporter cargo conjugate molecule, i.e., the at least one optional additional component (C), (D) and/or (E), etc., preferably may be selected independent from each other from different effector molecules or their fragments or variants as described above. The at least one optional additional component (C), (D) and/or (E), etc., of the inventive transporter cargo conjugate molecule can furthermore be an amino acid, oligopeptide or polypeptide or a (small) organo-chemical compound and can be linked to the inventive transporter cargo conjugate molecule at a suitable position, for example, the N-terminus, the C-terminus of the inventive transporter cargo conjugate molecule or may be internally coupled to amino acids, e.g. amino acid side chains, or to nucleic acids or any suitable position of a component (B) (or (A)). The at least one optional additional component (C), (D) and/or (E), etc. of the inventive transporter cargo conjugate molecule can also be a portion (e.g, HA, HSV-Tag, His6-Tag, FLAG-Tag), which may render the inventive transporter cargo conjugate molecule amenable to purification and/or isolation. If desired, the component needed for purification can then be removed from the other components of the inventive transporter cargo conjugate molecule (e.g., by proteolytic cleavage or other methods known in the art) at the end of the production process.
Furthermore, the at least one optional additional component (C), (D) and/or (E), etc. of the inventive transporter cargo conjugate molecule may be a signal sequence or localisation sequence, which efficiently directs the inventive transporter cargo conjugate molecule to a particular intracellular target localization, preferably without loss of the enhanced cell permeability properties of the inventive transporter cargo conjugate molecule. Typically, such a signal sequence or localisation sequence directs the inventive transporter cargo conjugate molecule to specific cell compartments, e.g., endoplasmic reticulum, mitochondrion, gloom apparatus, lysosomal vesicles, etc. Exemplary signal sequences or localisation sequences include, without being limited thereto, localisation sequences for the endoplasmic reticulum, such as KDEL (SEQ ID NO: 238), DDEL (SEQ ID NO: 239), DEEL (SEQ ID NO: 240), QEDL (SEQ ID NO: 241), RDEL (SEQ ID NO: 242), sequences for the localisation into the nucleus, such as PKKKRKV (SEQ ID NO: 243), PQKKIKS (SEQ ID NO: 244), QPKKP (SEQ ID NO: 245), RKKR (SEQ ID NO: 246), sequences for the localisation for the nuclear region, such as RKKRRQRRRAHQ (SEQ ID NO: 247), RQARRNRRRRWRERQR (SEQ ID NO: 248), MPLTRRRPAASQALAPPTP (SEQ ID NO: 249), sequences for the localisation into the endodomal compartiment, such as MDDQRDLISNNEQLP (SEQ ID NO: 250), etc.
Similarly, the at least one optional additional component (C), (D) and/or (E), etc. of the inventive transporter cargo conjugate molecule may be a signal sequence or localisation sequence, which efficiently directs the inventive transporter cargo conjugate molecule to a particular cell type, preferably without loss of the enhanced cell permeability properties of the inventive transporter cargo conjugate molecule.
The inventive transporter cargo conjugate molecule may furthermore comprise at least one modification, preferably at its termini, either at the C- or the N-terminus or both. The C-terminus may preferably be modified by an amide modification, whereas the N-terminus may be modified by any suitable NH2-protection group, such as e.g. acylation, or any further modification as already indicated above for L-amino acids. Such modifications also includes introduction of labels as defined above for inventive transporter molecules according to general formula (I) above.
Finally, the components (B), (C), (D), and/or (E) of the inventive transporter cargo conjugate molecule as described above as well as linkers, which may be optionally used for interlinking these components, may comprise or consist of protein or peptide sequences. Such protein or peptide sequences may be composed of L-amino acids, D-amino acids, or a combination of both, preferably as described above for the inventive novel novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above. Such D- and/or L-amino acids may be arranged in the components (B), (C), (D), and/or (E) in a blockwise, a non-blockwise or in an alternate manner. Alternatively, a pattern as described above for the inventive novel novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above may be repeated fort these components. In other words, generic formula (I) (SEQ ID NO: 1) DlLLLxDm(LLLyDn)a as defined above, may be applied, wherein the number of repeats as defined by a is not limited to a range of 0-3 but may be applied to the entire molecule, i.e. a will be 1 to 500, Ito 250, 1 to 100, 1 to 50, 1 to 20, 1 to 10, 1 to 5 or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, etc., and is preferably determined by the length of the protein or peptide sequences, hich is to be covered.
The components (A), (B) of the inventive transporter cargo conjugate molecule and, if present, further optional components (C), (D) and/or (E), etc. are typically coupled with each other, via covalent bonds or via electrostatic bonding (e.g. poly-lysine), preferably via covalent bonds. In this context the term “covalent bond” relates to a stable chemical link between two atoms produced by sharing one or more pairs of electrons. Preferably, all components (A) and (B) of the inventive transporter cargo conjugate molecule and, if present, further optional components (C), (D) and/or (E), etc. may be coupled as to form a linear molecule or a non-linear (branched) molecule, preferably a linear molecule. In a linear molecule, all the above components (A) and (B) and, if present, optional components (C), (D) and/or (E), etc. are linked to each other via their terminal ends of in a linear form without leading to branched transporter cargo conjugate molecule. In a non-linear (branched) molecule all the above components (A) and (B) and, if present, optional components (C), (D) and/or (E), etc. are linked to each other via their terminal ends of in a form which lieads to a branched transporter cargo conjugate molecule, e.g. having an Y-shaped form, etc.
As component (A) of the inventive transporter cargo conjugate molecule is per definition a peptide sequence consisting of D- and L-amino acids, the (covalent) attachment of further components (B) and, if present, of optional components (C), (D) and/or (E), may, of course, depend on the type and nature of the components to be attached, i.e. as to whether the single components are proteins or peptides, nucleic acids, (small) organic compounds, etc.
The order, in which component (B) of the inventive transporter cargo conjugate molecule and, if present, further optional components (C), (D) and/or (E), are linked with component (A) and each other to form a preferably linear molecule, typically may comprise any order. Accordingly, any of components (A), (B), and if present, (C), (D) and/or (E) may be attached with each other. However, component (A) is preferably attached at the terminal ends of the inventive transporter cargo conjugate molecule. If any of components (B), and if present, components (C), (D) and/or (E), is a protein or a peptide sequence, component (A) is preferably contained at the C-terminal end of the inventive transporter cargo conjugate molecule, e.g., at the C-terminal end of component (B) as defined above or, if present, of components (C), (D) and/or (E), when occurring as a peptide or a protein. Such a position of component (A) in the inventive transporter cargo conjugate molecule prevents the cargo peptide or protein sequence of components (B), (C), (D) and/or (E) to be degraded prior to its/their transport to the desired target site, e.g. the cell, the nucleus, etc., by a peptidase, particularly a carboxy peptidase such as carboxyterminal peptidase N. Alternatively, if there are aminoterminal peptidases in the cell systems used, the component (A) may be located at the aminoterminal end of the inventive transporter cargo conjugate molecule.
If the further component (B) and/or, if present, any of the optional component (C), (D) and/or (E), is a peptide or protein sequence, the link between these protein or peptide components of the inventive transporter cargo conjugate molecule is typically a peptide bond. Such a peptide bond may be formed using a chemical synthesis involving both components (an N-terminal end of one component and the C-terminal end of the other component) to be linked, or may be formed directly via a protein synthesis of the entire peptide sequence of both components, wherein both (protein or peptide) components are preferably synthesized in one step. Such protein synthesis methods include e.g., without being limited thereto, liquid phase peptide synthesis methods or solid peptide synthesis methods, e.g. solid peptide synthesis methods according to Merrifield, t-Boc solid-phase peptide synthesis, Fmoc solid-phase peptide synthesis, BOP (Benzotriazole-1-yl-oxy-tris-(dimethylamino)-phosphonium hexafluorophosphate) based solid-phase peptide synthesis, etc.
Furthermore, component (A) and component (B) of the inventive transporter cargo conjugate molecule can be coupled via a linker or directly (without linker) by e.g. an amide bridge, if the components to be linked have reactive amino or carboxy groups. Alternatively, ester or ether linkages are preferred.
If present, further components (C), (D) and/or (E), etc., as mentioned above, can be coupled in an analogous manner to component (A) and/or component (B) or, optionally, with each other to then be linked as one single moiety to either component (A) or component (B). Linker sequences can also be used to fuse the components of inventive transporter cargo conjugate molecule with at least one other component (see below). The mode of coupling further component(s) to the either component (A) or component (B) of the inventive transporter cargo conjugate molecule will depend on its chemical character. If additional components (C), (D), (E), etc., belong to the class of peptidic sequences, they will preferably linked to the inventive transporter cargo conjugate molecule to either terminus of component (A) or, alternatively, be linked via component (A)'s L- or D amino acid side chains, e.g. by a disulfide bridge. Further components of other chemical nature may be likewise attached to component (A) (terminal groups or chemically active side chain groups) or component (B). The linkage via a side chain will preferably be based on side chain amino, thiol or hydroxyl groups, e.g. via an amide or ester or ether linkage. It has to be noted that, according to the invention, all amino acids (of any of component (A), and, if built of amino acids, components (C), (D), (E) etc.,) are preferably D-enantiomeric amino acids, which reflect its eventually naturally occurring analogue by being linked in retro-inverso order. Nevertheless, components (C), (D), (E) etc., if composed of amino acids, may also be composed of L-amino acids (in their naturally occurring sequence order) or built of a combination of D and L amino acids.
If peptidic linker sequences are used to fuse component (A) and (B) or to fuse another component, e.g. (C) to component (A) and/or (B), the linker sequences preferably form a flexible sequence of 2 to 10 residues, more preferably 1 to 5 residues. In a preferred embodiment the linker sequence contains at least 20%, more preferably at least 40% and even more preferably at least 50% Gly or β-alanine residues, e.g. GlyGlyGlyGlyGly (SEQ ID NO: 255), GlyGlyGlyGly (SEQ ID NO: 256), GlyGlyGly, CysGlyGly or GlyGlyCys, etc. Appropriate linker sequences can be easily selected and prepared by a person skilled in the art. They may be composed of D and/or L amino acids.
Peptide linker sequences may also be introduced between a component (A) and a component (B), and/or further components (C), (D) and/or (E), of the inventive transporter cargo conjugate molecule, wherein an amino-terminal methionine is added to component (A) and/or prior to a protein or peptide sequence component (B), (C), (D) and/or (E).
Preferably, component (A) and component (B) are linked by chemical coupling in any suitable manner known in the art, such as cross-linking methods. However, attention is drawn to the fact that many known chemical cross-linking methods are non-specific, i.e., they do not direct the point of coupling to any particular site on the carrier moiety or cargo moiety. Thus, the use of non-specific cross-linking agents may attack functional sites or sterically block active sites, rendering the fused components of the inventive transporter cargo conjugate molecule biologically inactive. It is referred to the knowledge of the skilled artisan to block potentially reactice groups by using appropriate protecting groups. Alternatively, the use of the powerful and versatile oxime and hydrazone ligation techniques, which are chemo-selective entities that can be applied for the cross-linking of component (A) to component (B), may be employed. This linking technology is described e.g. by Rose et al. (1994), JACS 116, 30. If present, further components (C), (D), (E) etc., as mentioned above, can be chemically coupled in an analogous manner to one another or to component (A) and/or (B).
Coupling specificity can be increased by direct chemical coupling to a functional group found only once or a few times in component (A), which functional group is to be cross-linked to the organic molecule of component (B). As an example, the cystein thiol group may be used, if just one cystein residue is present on component (A) of the inventive transporter cargo conjugate molecule. Also, for example, if a conjugate molecule component (A) contains no lysine residues, a cross-linking reagent specific for primary amines will be selective for the amino terminus of component (A). Alternatively, cross-linking may also be carried out via the side chain of a glutamic acid residue placed at the N-terminus of the peptide such that a amide bond can be generated through its side-chain. Therefore, it may be advantageous to link a glutamic acid residue to the N-terminus of component (A) of the inventive transporter cargo conjugate molecule. However, if a cysteine residue is to be introduced into component (A), introduction at or near its N- or C-terminus is preferred. Conventional methods are available for such amino acid sequence alterations based on modifications of component (A) by either adding one or more additional amino acids, e.g. inter alia an cystein residue, to the translocation sequence or by substituting at least one residue of the translocation sequence(s) being comprised in component (A). In case a cystein side chain is used for coupling purposes, component (A) of the inventive transporter cargo conjugate molecule has preferably one cystein residue. Any second cystein residue should preferably be avoided and can, eventually, be replaced when they occur in component (A) of the inventive transporter cargo conjugate molecule. When a cysteine residue is replaced in the original translocation sequence to be used as or as part of component (A), it is typically desirable to minimize resulting changes in component (A) peptide folding. Changes in component (A) folding are minimized when the replacement is chemically and sterically similar to cysteine. Therefore, serine is preferred as a replacement for cystein.
Coupling of the two constituents of the inventive transporter cargo conjugate molecule can be accomplished via a coupling or conjugating agent including standard peptide synthesis coupling reagents such as HOBt, HBTU, DICI, TBTU. There are several intermolecular cross-linking reagents which can be utilized, see for example, Means and Feeney, Chemical Modification of Proteins, Holden-Day, 1974, pp. 39-43. Among these reagents are, for example, N-succinimidyl 3-(2-pyridyldithio)propionate (SPDP) or N,N′-(1,3-phenylene)bismaleimide; N,N′-ethylene-bis-(iodoacetamide) or other such reagent having 6 to 11 carbon methylene bridges; and 1,5-difluoro-2,4-dinitrobenzene. Other cross-linking reagents useful for this purpose include: p,p′-difluoro-m,m′-dinitrodiphenylsulfone; dimethyl adipimidate; phenol-1,4-disulfonylchloride; hexamethylenediisocyanate or diisothiocyanate, or azophenyl-p-diisocyanate; glutaraldehyde and disdiazobenzidine. Cross-linking reagents may be homobifunctional, i.e., having two functional groups that undergo the same reaction. A preferred homobifunctional cross-linking reagent is bismaleimidohexane (BMH). BMH contains two maleimide functional groups, which react specifically with sulfhydryl-containing compounds under mild conditions (pH 6.5-7.7). The two maleimide groups are connected by a hydrocarbon chain. Therefore, BMH is useful for irreversible cross-linking of proteins (or polypeptides) that contain cysteine residues. Cross-linking reagents may also be heterobifunctional. Heterobifunctional cross-linking agents have two different functional groups, for example an amine-reactive group and a thiol-reactive group, that will cross-link two proteins having free amines and thiols, respectively. Examples of heterobifunctional cross-linking agents are Succinimidyl-4-(N-maleimidomethyl)-cyclohexane-1-carboxylate (SMCC), m-maleimidobenzoyl-N-hydroxysuccinimide ester (MBS), and succinimide 4-(p-maleimidophenyl)butyrate (SMPB), an extended chain analog of MBS. The succinimidyl group of these cross-linkers reacts with a primary amine, and the thiol-reactive maleimide forms a covalent bond with the thiol of a cysteine residue. Because cross-linking reagents often have low solubility in water, a hydrophilic moiety, such as a sulfonate group, may be added to the cross-linking reagent to improve its water solubility. Sulfo-MBS and sulfo-SMCC are examples of cross-linking reagents modified for water solubility. Many cross-linking reagents yield a conjugate that is essentially non-cleavable under cellular conditions. Therefore, some cross-linking reagents contain a covalent bond, such as a disulfide, that is cleavable under cellular conditions. For example, Traut's reagent, dithiobis (succinimidylpropionate) (DSP), and N-succinimidyl 3-(2-pyridyldithio)propionate (SPDP) are well-known cleavable cross-linkers. The use of a cleavable cross-linking reagent permits the cargo moiety component (B), (C), (D) and/or (E) to separate from the novel transporter construct component (A) after delivery into the target cell. For this purpose, direct disulfide linkage may also be useful. Chemical cross-linking may also include the use of spacer arms. Spacer arms provide intramolecular flexibility or adjust intramolecular distances between conjugated moieties and thereby may help preserve biological activity. A spacer arm may be in the form of a protein (or polypeptide) moiety that includes spacer amino acids, e.g. proline. Alternatively, a spacer arm may be part of the cross-linking reagent, such as in “long-chain SPDP” (Pierce Chem. Co., Rockford, III., cat. No. 21651 H). Numerous cross-linking reagents, including the ones discussed above, are commercially available. Detailed instructions for their use are readily available from the commercial suppliers. A general reference on protein cross-linking and conjugate preparation is: Wong, Chemistry of Protein Conjugation and Cross-Linking, CRC Press (1991).
According to another preferred embodiment, an inventive transporter cargo conjugate molecule as defined above may comprise or consist of at least one variant and/or fragment of the above defined inventive transporter cargo conjugate molecules. Preferably, variants and/or fragments of the above defined inventive transporter cargo conjugate molecules retain biological activity of the inventive transporter cargo conjugate molecules as disclosed above. Functionality of such fragments or variants may be tested by various tests, e.g. transfection efficacy, correct expression of proteins encoded by cargo nucleic acids, or by biophysical methods, e.g. spectroscopy, computer modeling, structural analysis, etc. similar as described above for inventive novel transporter constructs according to generic formula (I)
Even more preferably, the above defined inventive transporter cargo conjugate molecules comprise or consist of at least one variant (and/or fragment), particularly if the single components are protein or peptide sequences. In the context of the invention such variants (and/or fragments) of the above defined inventive transporter cargo conjugate molecules may have a sequence identity to their native sequences, e.g. a fragment or a variant of the above defined inventive transporter cargo conjugate molecule to its native transporter cargo conjugate molecule sequence, of at least 70%, 80% or 85%, preferably at least 90%, more preferably at least 95% and most preferably at least 99% over the whole length of the native inventive transporter cargo conjugate molecule.
A “fragment” of the above defined inventive transporter cargo conjugate molecules, particularly if the single components are protein or peptide sequences, is preferably to be understood as a truncated sequence thereof, i.e. an amino acid sequence of the above defined inventive transporter cargo conjugate molecule, which is N-terminally, C-terminally and/or intrasequentially truncated compared to the amino acid sequence of the native inventive transporter cargo conjugate molecule as defined above.
A “variant” of the above defined inventive transporter cargo conjugate molecule preferably comprises a sequence wherein the amino acid sequence of the inventive transporter cargo conjugate molecule variant differs from the native sequence of the above defined inventive transporter cargo conjugate molecule in one or more mutation(s), such as one or more substituted, (or, if necessary, inserted and/or deleted) amino acid(s). Preferably, variants of the above defined inventive transporter cargo conjugate molecules have the same biological function or specific activity compared to the full-length native transporter cargo conjugate molecules as defined above. Preferably, a variant may comprise about 1 to 100, 1 to 50, 1 to 20, preferably 1 to 10 and more preferably 1 to 5, 4, 3, 2 or 1 amino acid alterations within the above meaning. Such alterations may comprise inter alia modifications of amino acids as defined above, introduction of labels into amino acids as defined above, substituting an amino acid with any of the (modified or labelled) amino acids mentioned herein, deletions or insertions of amino acids. Variants as defined herein furthermore preferably comprise conservative amino acid substitutions, preferably such as already defined above.
According to a third aspect, the present invention furthermore provides a pharmaceutical composition, the pharmaceutical composition preferably comprising the inventive transporter cargo conjugate molecule as defined above, and optionally a pharmaceutically acceptable carrier and/or vehicle, or any excipient, buffer, stabilizer or other materials well known to those skilled in the art.
As a first ingredient, the inventive pharmaceutical composition comprises the inventive transporter cargo conjugate molecule as defined above, i.e. an inventive transporter cargo conjugate molecule, comprising as a component (A) the inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above, and as a component (B) an effector molecule, selected from proteins or peptides, such as therapeutically active proteins and peptides, protein kinase inhibitors, particularly inhibitors of the protein kinase c-Jun amino terminal kinase, antigens, antibodies, apoptotic factors, proteases implicated in pathological states, preferably peptidic protease inhibitors, BH3-domains BH3-only proteins, or selected from nucleic acids, siRNAs, or from cytotoxic agents, small organic compounds, etc. Optionally, the inventive transporter cargo conjugate molecule as defined above may furthermore contain additional components (C), (D), and/or (E), etc.
As a second ingredient, the inventive pharmaceutical composition may or may not comprise a pharmaceutically acceptable carrier and/or vehicle. In the context of the present invention, a pharmaceutically acceptable carrier typically includes the liquid or non-liquid basis of the inventive inventive pharmaceutical composition. If the inventive pharmaceutical composition is provided in liquid form, the carrier will typically be pyrogen-free water; isotonic saline or buffered (aqueous) solutions, e.g phosphate, citrate etc. buffered solutions. Particularly for injection of the inventive inventive pharmaceutical composition, water or preferably a buffer, more preferably an aqueous buffer, may be used, containing a sodium salt, preferably at least 50 mM of a sodium salt, a calcium salt, preferably at least 0.01 mM of a calcium salt, and optionally a potassium salt, preferably at least 3 mM of a potassium salt. According to a preferred embodiment, the sodium, calcium and, optionally, potassium salts may occur in the form of their halogenides, e.g. chlorides, iodides, or bromides, in the form of their hydroxides, carbonates, hydrogen carbonates, or sulfates, etc. Without being limited thereto, examples of sodium salts include e.g. NaCl, NaI, NaBr, Na2CO3, NaHCO3, Na2SO4, examples of the optional potassium salts include e.g. KCl, KI, KBr, K2CO3, KHCO3, K2SO4, and examples of calcium salts include e.g. CaCl2, CaI2, CaBr2, CaCO3, CaSO4, Ca(OH)2. Furthermore, organic anions of the aforementioned cations may be contained in the buffer. According to a more preferred embodiment, the buffer suitable for injection purposes as defined above, may contain salts selected from sodium chloride (NaCl), calcium chloride (CaCl2) and optionally potassium chloride (KCl), wherein further anions may be present additional to the chlorides. CaCl2 can also be replaced by another salt like KCl. Typically, the salts in the injection buffer are present in a concentration of at least 50 mM sodium chloride (NaCl), at least 3 mM potassium chloride (KCl) and at least 0.01 mM calcium chloride (CaCl2). The injection buffer may be hypertonic, isotonic or hypotonic with reference to the specific reference medium, i.e. the buffer may have a higher, identical or lower salt content with reference to the specific reference medium, wherein preferably such concentrations of the afore mentioned salts may be used, which do not lead to damage of cells due to osmosis or other concentration effects.
Reference media are e.g. liquids occurring in “in vivo” methods, such as blood, lymph, cytosolic liquids, or other body liquids, or e.g. liquids, which may be used as reference media in “in vitro” methods, such as common buffers or liquids. Such common buffers or liquids are known to a skilled person. Ringer-Lactate solution is particularly preferred as a liquid basis.
However, one or more compatible solid or liquid fillers or diluents or encapsulating compounds may be used as well for the inventive pharmaceutical composition, which are suitable for administration to a patient to be treated. The term “compatible” as used here means that these constituents of the inventive pharmaceutical composition are capable of being mixed with the inventive transporter cargo conjugate molecule as defined above in such a manner that no interaction occurs which would substantially reduce the pharmaceutical effectiveness of the inventive pharmaceutical composition under typical use conditions. Pharmaceutically acceptable carriers, fillers and diluents must, of course, have sufficiently high purity and sufficiently low toxicity to make them suitable for administration to a person to be treated. Some examples of compounds which can be used as pharmaceutically acceptable carriers, fillers or constituents thereof are sugars, such as, for example, lactose, glucose and sucrose; starches, such as, for example, corn starch or potato starch; cellulose and its derivatives, such as, for example, sodium carboxymethylcellulose, ethylcellulose, cellulose acetate; powdered tragacanth; malt; gelatin; tallow; solid glidants, such as, for example, stearic acid, magnesium stearate; calcium sulfate; vegetable oils, such as, for example, groundnut oil, cottonseed oil, sesame oil, olive oil, corn oil and oil from theobroma; polyols, such as, for example, polypropylene glycol, glycerol, sorbitol, mannitol and polyethylene glycol; alginic acid.
The inventive pharmaceutical composition may be administered orally, parenterally, by inhalation spray, topically, rectally, nasally, buccally, vaginally or via an implanted reservoir. The term parenteral as used herein includes subcutaneous, intravenous, intramuscular, intra-articular, intra-synovial, intrasternal, intrathecal, intrahepatic, intralesional, intracranial, transdermal, intradermal, intrapulmonal, intraperitoneal, intracardial, intraarterial, and sublingual injection or infusion techniques.
Preferably, the inventive pharmaceutical composition may be administered by parenteral injection, more preferably by subcutaneous, intravenous, intramuscular, intra-articular, intra-synovial, intrasternal, intrathecal, intrahepatic, intralesional, intracranial, transdermal, intradermal, intrapulmonal, intraperitoneal, intracardial, intraarterial, and sublingual injection or via infusion techniques. Sterile injectable forms of the inventive pharmaceutical compositions may be aqueous or oleaginous suspension. These suspensions may be formulated according to techniques known in the art using suitable dispersing or wetting agents and suspending agents. The sterile injectable preparation may also be a sterile injectable solution or suspension in a non-toxic parenterally-acceptable diluent or solvent, for example as a solution in 1,3-butanediol. Among the acceptable vehicles and solvents that may be employed are water, Ringer's solution and isotonic sodium chloride solution. In addition, sterile, fixed oils are conventionally employed as a solvent or suspending medium. For this purpose, any bland fixed oil may be employed including synthetic mono- or di-glycerides. Fatty acids, such as oleic acid and its glyceride derivatives are useful in the preparation of injectables, as are natural pharmaceutically-acceptable oils, such as olive oil or castor oil, especially in their polyoxyethylated versions. These oil solutions or suspensions may also contain a long-chain alcohol diluent or dispersant, such as carboxymethyl cellulose or similar dispersing agents that are commonly used in the formulation of pharmaceutically acceptable dosage forms including emulsions and suspensions. Other commonly used surfactants, such as Tweens, Spans and other emulsifying agents or bioavailability enhancers which are commonly used in the manufacture of pharmaceutically acceptable solid, liquid, or other dosage forms may also be used for the purposes of formulation of the inventive pharmaceutical composition.
For intravenous, cutaneous or subcutaneous injection, or injection at the site of affliction, the active ingredient will preferably be in the form of a parenterally acceptable aqueous solution which is pyrogen-free and has suitable pH, isotonicity and stability. Those of relevant skill in the art are well able to prepare suitable solutions using, for example, isotonic vehicles such as Sodium Chloride Injection, Ringer's Injection, Lactated Ringer's Injection. Preservatives, stabilizers, buffers, antioxidants and/or other additives may be included, as required. Whether it is a polypeptide, peptide, or nucleic acid molecule, other pharmaceutically useful compound according to the present invention that is to be given to an individual, administration is preferably in a “prophylactically effective amount” or a “therapeutically effective amount” (as the case may be), this being sufficient to show benefit to the individual. The actual amount administered, and rate and time-course of administration, will depend on the nature and severity of what is being treated.
The inventive pharmaceutical composition as defined above may also be administered orally in any orally acceptable dosage form including, but not limited to, capsules, tablets, aqueous suspensions or solutions. In the case of tablets for oral use, carriers commonly used include lactose and corn starch. Lubricating agents, such as magnesium stearate, are also typically added. For oral administration in a capsule form, useful diluents include lactose and dried cornstarch. When aqueous suspensions are required for oral use, the active ingredient, i.e. the inventive transporter cargo conjugate molecule as defined above, is combined with emulsifying and suspending agents. If desired, certain sweetening, flavoring or coloring agents may also be added.
The inventive pharmaceutical composition may also be administered topically, especially when the target of treatment includes areas or organs readily accessible by topical application, e.g. including diseases of the skin or of any other accessible epithelial tissue. Suitable topical formulations are readily prepared for each of these areas or organs. For topical applications, the inventive pharmaceutical composition may be formulated in a suitable ointment, containing the inventive immunostimulatory composition, particularly its components as defined above, suspended or dissolved in one or more carriers. Carriers for topical administration include, but are not limited to, mineral oil, liquid petrolatum, white petrolatum, propylene glycol, polyoxyethylene, polyoxypropylene compound, emulsifying wax and water. Alternatively, the inventive pharmaceutical composition can be formulated in a suitable lotion or cream. In the context of the present invention, suitable carriers include, but are not limited to, mineral oil, sorbitan monostearate, polysorbate 60, cetyl esters wax, cetearyl alcohol, 2-octyldodecanol, benzyl alcohol and water.
In this context, prescription of treatment, e.g. decisions on dosage etc. when using the above pharmaceutical composition is typically within the responsibility of general practitioners and other medical doctors, and typically takes account of the disorder to be treated, the condition of the individual patient, the site of delivery, the method of administration and other factors known to practitioners. Examples of the techniques and protocols mentioned above can be found in REMINGTON'S PHARMACEUTICAL SCIENCES, 16th edition, Osol, A. (ed), 1980. Accordingly, the inventive pharmaceutical composition typically comprises a “safe and effective amount” of the components of the inventive pharmaceutical composition, particularly of the inventive transporter cargo conjugate molecule as defined above. As used herein, a “safe and effective amount” means an amount of the inventive transporter cargo conjugate molecule as defined above that is sufficient to significantly induce a positive modification of a disease or disorder as defined herein. At the same time, however, a “safe and effective amount” is small enough to avoid serious side-effects, that is to say to permit a sensible relationship between advantage and risk. The determination of these limits typically lies within the scope of sensible medical judgment. A “safe and effective amount” of the components of the inventive pharmaceutical composition, particularly of the inventive transporter cargo conjugate molecule as defined above, will furthermore vary in connection with the particular condition to be treated and also with the age and physical condition of the patient to be treated, the body weight, general health, sex, diet, time of administration, rate of excretion, drug combination, the activity of the specific components (A), (B), (C), (D) and/or (E) of the inventive transporter cargo conjugate molecule as defined above, the severity of the condition, the duration of the treatment, the nature of the accompanying therapy, of the particular pharmaceutically acceptable carrier used, and similar factors, within the knowledge and experience of the accompanying doctor. The inventive pharmaceutical composition may be used for human and also for veterinary medical purposes, preferably for human medical purposes, as a pharmaceutical composition in general or as a vaccine.
According to a specific embodiment, the inventive pharmaceutical composition may be provided as a vaccine, e.g. if component (B) of the inventive transporter cargo conjugate molecule is a therpeutically active protein such as a(n) (protein or peptide) antigen or antigenic fragment or any molecule as described above, which is suitable to elicit an imune response. Such an inventive vaccine is typically composed like the inventive pharmaceutical composition and preferably supports an innate and/or an adaptive immune response of the immune system of a patient to be treated, depending on the nature of the components (B), (C), (D) and/or (E) of the inventive transporter cargo conjugate molecule as defined above. As an example, if any of these components provides or encodes a(n) (protein or peptide) antigen or antigenic fragment, the vaccine typically will lead to an adaptive immune reponse in the patient to be treated. Similarly, any of the further components (B), (C), (D) and/or (E) of the inventive transporter cargo conjugate molecule as defined above may lead to an innate and/or adaptive immune response.
The inventive vaccine may also comprise a pharmaceutically acceptable carrier, adjuvant, and/or vehicle as defined above for the inventive pharmaceutical composition. In the specific context of the inventive vaccine, the choice of a pharmaceutically acceptable carrier is determined in principle by the manner in which the inventive vaccine is administered. The inventive vaccine can be administered, for example, systemically or locally. Routes for systemic administration in general include, for example, transdermal, oral, parenteral routes, including subcutaneous, intravenous, intramuscular, intraarterial, intradermal and intraperitoneal injections and/or intranasal administration routes. Routes for local administration in general include, for example, topical administration routes but also intradermal, transdermal, subcutaneous, or intramuscular injections or intralesional, intracranial, intrapulmonal, intracardial, and sublingual injections. More preferably, vaccines may be administered by an intradermal, subcutaneous, or intramuscular route. Inventive vaccines are therefore preferably formulated in liquid (or sometimes in solid) form. The suitable amount of the inventive vaccine to be administered can be determined by routine experiments with animal models. Such models include, without implying any limitation, rabbit, sheep, mouse, rat, dog and non-human primate models. Preferred unit dose forms for injection include sterile solutions of water, physiological saline or mixtures thereof. The pH of such solutions should be adjusted to about 7.4. Suitable carriers for injection include hydrogels, devices for controlled or delayed release, polylactic acid and collagen matrices. Suitable pharmaceutically acceptable carriers for topical application include those which are suitable for use in lotions, creams, gels and the like. If the inventive vaccine is to be administered orally, tablets, capsules and the like are the preferred unit dose form. The pharmaceutically acceptable carriers for the preparation of unit dose forms which can be used for oral administration are well known in the prior art. The choice thereof will depend on secondary considerations such as taste, costs and storability, which are not critical for the purposes of the present invention, and can be made without difficulty by a person skilled in the art.
The inventive vaccine can additionally contain one or more auxiliary substances in order to further increase its immunogenicity. A synergistic action of the inventive transporter cargo conjugate molecule as defined above and of an auxiliary substance, which may be optionally contained in the inventive vaccine as described above, is preferably achieved thereby. Depending on the various types of auxiliary substances, various mechanisms can come into consideration in this respect. For example, compounds that permit the maturation of dendritic cells (DCs), for example lipopolysaccharides, TNF-alpha or CD40 ligand, form a first class of suitable auxiliary substances. In general, it is possible to use as auxiliary substance any agent that influences the immune system in the manner of a “danger signal” (LPS, GP96, etc.) or cytokines, such as GM-CFS, which allow an immune response produced by the immune-stimulating adjuvant according to the invention to be enhanced and/or influenced in a targeted manner. Particularly preferred auxiliary substances are cytokines, such as monokines, lymphokines, interleukins or chemokines, that further promote the innate immune response, such as IL-1, IL-2, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-12, IL-13, IL-14, IL-15, IL-16, IL-17, IL-18, IL-19, IL-20, IL-21, IL-22, IL-23, IL-24, IL-25, IL-26, IL-27, IL-28, IL-29, IL-30, IL-31, IL-32, IL-33, INF-alpha, IFN-beta, INF-gamma, GM-CSF, G-CSF, M-CSF, LT-beta or TNF-alpha, growth factors, such as hGH.
Further additives which may be included in the inventive vaccine are emulsifiers, such as, for example, Tween®; wetting agents, such as, for example, sodium lauryl sulfate; colouring agents; taste-imparting agents, pharmaceutical carriers; tablet-forming agents; stabilizers; antioxidants; preservatives.
The inventive vaccine can also additionally contain any further compound, which is known to be immune-stimulating due to its binding affinity (as ligands) to human Toll-like receptors TLR1, TLR2, TLR3, TLR4, TLR5, TLR6, TLR7, TLR8, TLR9, TLR10, or due to its binding affinity (as ligands) to murine Toll-like receptors TLR1, TLR2, TLR3, TLR4, TLR5, TLR6, TLR7, TLR8, TLR9, TLR10, TLR11, TLR12 or TLR13.
Another class of compounds, which may be added to an inventive vaccine in this context, may be CpG nucleic acids, in particular CpG-RNA or CpG-DNA. A CpG-RNA or CpG-DNA can be a single-stranded CpG-DNA (ss CpG-DNA), a double-stranded CpG-DNA (dsDNA), a single-stranded CpG-RNA (ss CpG-RNA) or a double-stranded CpG-RNA (ds CpG-RNA). The CpG nucleic acid is preferably in the form of CpG-RNA, more preferably in the form of single-stranded CpG-RNA (ss CpG-RNA). The CpG nucleic acid preferably contains at least one or more (mitogenic) cytosine/guanine dinucleotide sequence(s) (CpG motif(s)). According to a first preferred alternative, at least one CpG motif contained in these sequences, that is to say the C (cytosine) and the G (guanine) of the CpG motif, is unmethylated. All further cytosines or guanines optionally contained in these sequences can be either methylated or unmethylated. According to a further preferred alternative, however, the C (cytosine) and the G (guanine) of the CpG motif can also be present in methylated form.
According to a fourth aspect of the present invention, the inventive transporter cargo conjugate molecule as defined above may be used (for the preparation of a pharmaceutical composition or a vaccine, preferably both as defined herein,) for the prophylaxis, treatment and/or amelioration of any of the diseases and disorders as defined herein, preferably for the prophylaxis, treatment and/or amelioration of cancer or tumor diseases, including diseases caused by defective apoptosis, inflammatory diseases, infectious diseases, viral (infectious) diseases, diseases strongly related to JNK signalling, autoimmune disorders or diseases, cardiovascular diseases, neuronal or neurodegenerative diseases, diseases of the liver, diseases of the spine, diseases of the uterus, major depressive disorders, non-chronic or chronic inflammatory digestive diseases and hearing loss or diseases of the inner ear. The inventive transporter cargo conjugate molecule may also be used (for the preparation of a pharmaceutical composition) for use in tissue transplantation either by treating the organs/tissue/cells to be transplanted or by treating the recipient of the organ/tissue/cells.
Prophylaxis, treatment and/or amelioration of a disease as defined herein typically include administration of a pharmaceutical composition as defined above. The term “prophylaxis” is typically directed to the prevention of a disease as defined herein in a patient, preferably prior to manifestation of the disease in the patient. The term “treatment” generally refers to any treatment of a disease as defined herein in a patient, wherein the disease may have already been diagnosed or shall be prevented, i.e. prior, parallel and subsequent to manifestation of the disease in the patient. The term “treatment”, used for example in the term “treating a condition”, furthermore preferably means at least the administration of a therapeutically effective amount of a therapeutic compound to elicit a therapeutic effect. It does not necessarily imply “curing”, but rather having preferably at least some minimal physiological effect upon a condition upon administration to a living body having such a condition. For example, treatment could encompass administering an agent and the presence of that agent resulting in a change in the physiology of a recipient animal. Finally, the term “amelioration” preferably includes any modification of a disease as defined herein, preferably a positive modification of the disease as defined herein. The specific modification may be dependent on the disease to be treated.
According to one approach, an inventive pharmaceutical composition, a vaccine or an inventive transporter cargo conjugate molecule as defined above may be administered directly to a patient using the administration routes as described above for pharmaceutical compositions. Alternatively, a pharmaceutical composition, a vaccine or an inventive transporter cargo conjugate molecule as defined above may be administered to a patient using an ex vivo approach, e.g. by introducing the pharmaceutical composition, the vaccine or the inventive transporter cargo conjugate molecule as defined above into cells, preferably autologous cells, i.e. cells derived from the patient to be treated, and transplanting these cells into the site of the patient to be treated, optionally subsequent to storing and/or culturing these cells prior to treatment.
According to one preferred embodiment, the inventive transporter cargo conjugate molecule, the inventive pharmaceutical composition or the inventive vaccine as defined above, may be used for (the preparation of a medicament for) the prophylaxis, treatment and/or amelioration of e.g. cancer or tumor diseases, including diseases caused by defective apoptosis, preferably selected from acusticus neurinoma, anal carcinoma, astrocytoma, basalioma, Behcet's syndrome, bladder cancer, blastomas, bone cancer, brain metastases, brain tumors, brain cancer (glioblastomas), breast cancer (mamma carcinoma), Burkitt's lymphoma, carcinoids, cervical cancer, colon carcinoma, colorectal cancer, corpus carcinoma, craniopharyngeomas, CUP syndrome, endometrial carcinoma, gall bladder cancer, genital tumors, including cancers of the genitourinary tract, glioblastoma, gliomas, head/neck tumors, hepatomas, histocytic lymphoma, Hodgkin's syndromes or lymphomas and non-Hodgkin's lymphomas, hypophysis tumor, intestinal cancer, including tumors of the small intestine, and gastrointestinal tumors, Kaposi's sarcoma, kidney cancer, kidney carcinomas, laryngeal cancer or larynx cancer, leukemia, including acute myeloid leukaemia (AML), erythroleukemia, acute lymphoid leukaemia (ALL), chronic myeloid leukaemia (CML), and chronic lymphocytic leukaemia (CLL), lid tumor, liver cancer, liver metastases, lung carcinomas (=lung cancer=bronchial carcinoma), small cell lung carcinomas and non-small cell lung carcinomas, and lung adenocarcinoma, lymphomas, lymphatic cancer, malignant melanomas, mammary carcinomas (=breast cancer), medulloblastomas, melanomas, meningiomas, Mycosis fungoides, neoplastic diseases neurinoma, oesophageal cancer, oesophageal carcinoma (=Oesophageal cancer), oligodendroglioma, ovarian cancer (=Ovarian carcinoma), ovarian carcinoma, pancreatic carcinoma (=pancreatic cancer), penile cancer, penis cancer, pharyngeal cancer, pituitary tumour, plasmocytoma, prostate cancer (=prostate tumors), rectal carcinoma, rectal tumors, renal cancer, renal carcinomas, retinoblastoma, sarcomas, Schneeberger's disease, skin cancer, e.g. melanoma or non-melanoma skin cancer, including basal cell and squamous cell carcinomas as well as psoriasis, pemphigus vulgaris, soft tissue tumours, spinalioma, stomach cancer, testicular cancer, throat cancer, thymoma, thyroid carcinoma, tongue cancer, urethral cancer, uterine cancer, vaginal cancer, various virus-induced tumors such as, for example, papilloma virus-induced carcinomas (e.g. cervical carcinoma=cervical cancer), adenocarcinomas, herpes virus-induced tumors (e.g. Burkitt's lymphoma, EBV-induced B-cell lymphoma, cervix carcinoma), heptatitis B-induced tumors (hepatocell carcinomas), HTLV-1- and HTLV-2-induced lymphomas, vulval cancer, wart conditions or involvement, etc. In the present context, the terms “therapy” and “therapeutic” preferably mean to have at least some minimal physiological effect upon being administered to a living body. For example, a physiological effect upon administering a “therapeutic” anti-tumor compound may be the inhibition of tumor growth, or decrease in tumor size, or prevention reoccurrence of the tumor. Preferably, in the treatment of cancer or neoplastic disease, a compound which inhibits the growth of a tumor or decreased the size of the tumor or prevents the reoccurrence of the tumor would be considered therapeutically effective. The term “anti-tumor drug” therefore preferably means any therapeutic agent having therapeutic effect against a tumor, neoplastic disease or cancer.
According to an alternative preferred embodiment, the inventive transporter cargo conjugate molecule, the inventive pharmaceutical composition or the inventive vaccine as defined above, may be used for (the preparation of a medicament for) the prophylaxis, treatment, and/or amelioration of inflammatory diseases, such as inflammatory diseases of the lung or lung diseases, including Acute Respiratory Distress Syndrome (ARDS), or pulmonary fibrosis, inflammations of the tissue, including, without being limited thereto, formation of fibrous tissue, including cystic fibrosis, meningitis, and graft rejection or transplant rejection reactions, chronic illness involving the respiratory system, including Asthma, chronic obstructive pulmonary disease (COPD), pneumonia, and pulmonary fibrosis.
According to an alternative preferred embodiment, the inventive transporter cargo conjugate molecule, the inventive pharmaceutical composition or the inventive vaccine as defined above, may be used for (the preparation of a medicament for) the prophylaxis, treatment, and/or amelioration of e.g. infectious diseases, preferably viral, retroviral, bacterial or protozoological infectious diseases. Such infectious diseases are typically selected from AIDS, anthrax, Japanese encephalitis, bacterial infectious diseases such as miscarriage (prostate inflammation), anthrax, appendicitis, borreliosis, botulism, Camphylobacter, Chlamydia trachomatis (inflammation of the urethra, conjunctivitis), cholera, diphtheria, donavanosis, epiglottitis, typhus fever, gas gangrene, gonorrhoea, rabbit fever, Heliobacter pylori, whooping cough, climatic bubo, osteomyelitis, Legionnaire's disease, chicken-pox, condyloma acuminata, cytomegalic virus (CMV), dengue fever, early summer meningoencephalitis (ESME), Ebola virus, colds, fifth disease, foot-and-mouth disease, herpes simplex type I, herpes simplex type II, herpes zoster, HSV, infectious diseases caused by parasites, protozoa or fungi, such as amoebiasis, bilharziosis, Chagas disease, Echinococcus, fish tapeworm, fish poisoning (Ciguatera), fox tapeworm, athlete's foot, canine tapeworm, candidosis, yeast fungus spots, scabies, cutaneous Leishmaniosis, lambliasis (giardiasis), lice, malaria, microscopy, onchocercosis (river blindness), fungal diseases, bovine tapeworm, schistosomiasis, porcine tapeworm, toxoplasmosis, trichomoniasis, trypanosomiasis (sleeping sickness), visceral Leishmaniosis, nappy/diaper dermatitis or miniature tapeworm, infectious erythema, influenza, Kaposi's sarcoma, Lassa fever, Leishmaniasis, leprosy, listeriosis, Lyme borreliosis, malaria, Marburg virus infection, measles, meningitis, including bacterial meningitis, molluscum contagiosum, mononucleosis, mumps, Mycoplasma hominis, neonatal sepsis (Chorioamnionitis), noma, Norwalk virus infection, otitis media, paratyphus, Pfeiffer's glandular fever, plague, pneumonia, polio (poliomyelitis, childhood lameness), pseudo-croup, rabies, Reiter's syndrome, Rocky Mountain spotted fever, Salmonella paratyphus, Salmonella typhus, SARS, scarlet fever, shingles, hepatitis, smallpox, soft chancre, syphilis, tetanus, three-day fever, tripper, tsutsugamushi disease, tuberculosis, typhus, vaginitis (colpitis), viral diseases caused by cytomegalovirus (CMV), orthopox variola virus, orthopox alastrim virus, parapox ovis virus, molluscum contagiosum virus, herpes simplex virus 1, herpes simplex virus 2, herpes B virus, varicella zoster virus, pseudorabies virus, human cytomegaly virus, human herpes virus 6, human herpes virus 7, Epstein-Barr virus, human herpes virus 8, hepatitis B virus, chikungunya virus, O'nyong'nyong virus, rubivirus, hepatitis C virus, GB virus C, West Nile virus, dengue virus, yellow fever virus, louping ill virus, St. Louis encephalitis virus, Japan B encephalitis virus, Powassan virus, FSME virus, SARS, SARS-associated corona virus, human corona virus 229E, human corona virus Oc43, Torovirus, human T cell lymphotropic virus type I, human T cell lymphotropic virus type II, HIV (AIDS), i.e. human immunodeficiency virus type 1 or human immunodeficiency virus type 2, influenza virus, Lassa virus, lymphocytic choriomeningitis virus, Tacaribe virus, Junin virus, Machupo virus, Borna disease virus, Bunyamwera virus, California encephalitis virus, Rift Valley fever virus, sand fly fever virus, Toscana virus, Crimean-Congo haemorrhagic fever virus, Hazara virus, Khasan virus, Hantaan virus, Seoul virus, Prospect Hill virus, Puumala virus, Dobrava Belgrade virus, Tula virus, sin nombre virus, Lake Victoria Marburg virus, Zaire Ebola virus, Sudan Ebola virus, Ivory Coast Ebola virus, influenza virus A, influenza virus B, influenza viruses C, parainfluenza virus, measles virus, mumps virus, respiratory syncytial virus, human metapneumovirus, vesicular stomatitis Indiana virus, rabies virus, Mokola virus, Duvenhage virus, European bat lyssavirus 1+2, Australian bat lyssavirus, adenoviruses A-F, human papilloma viruses, condyloma virus 6, condyloma virus 11, polyoma viruses, adeno-associated virus 2, rotaviruses, or orbiviruses, Varicella including Varizella zoster, and malaria virus, viral infectious diseases such as AIDS, infectious diseases caused by Condyloma acuminata, hollow warts, Dengue fever, three-day fever, Ebola virus, cold, early summer meningoencephalitis (FSME), flu, shingles, hepatitis, herpes simplex type I, herpes simplex type II, Herpes zoster, influenza, Japanese encephalitis, Lassa fever, Marburg virus, warts, West Nile fever, yellow fever, etc.
According to another preferred embodiment, the inventive transporter cargo conjugate molecule, the inventive pharmaceutical composition or the inventive vaccine, may be used for (the preparation of a medicament for) the prophylaxis, treatment, and/or amelioration of diseases strongly related to JNK signaling in a subject. Such diseases or disorders strongly related to JNK signaling in a subject, without being limited thereto, are preferably selected from autoimmune disorders, cardiovascular diseases, cancer or tumor diseases as defined above, diabetes, including diabetes type 1 or type 2, inflammatory diseases as defined above, hair loss, including Alopecia greata, diseases of the lung, neuronal or neurodegenerative diseases, diseases of the liver, diseases of the spine, diseases of the uterus, (viral) infectious diseases and depressive disorders. In the case of diseases or disorders strongly related to JNK signaling the term “amelioration” may include the suppression of expression of JNK when it is over-expressed, and/or the suppression of phosphorylation of c-jun, ATF2 or NFAT4 in any of the above diseases, for example, by using at least one JNK inhibitor sequence as defined herein coupled to the inventive novel transporter molecule within the above definitions, as a competitive inhibitor of the natural c-jun, ATF2 and NFAT4 binding site in a cell. In this specific context, the term “modulate” also includes suppression of hetero- and homomeric complexes of transcription factors made up of, without being limited thereto, c-jun, ATF2, or NFAT4 and their related partners, such as for example the AP-1 complex that is made up of c-jun, AFT2 and c-fos. When a disease or disorder strongly related to JNK signaling as defined above is associated with JNK overexpression, such suppressive JNK inhibitor sequences can be introduced to a cell. In some instances, “modulate” in the context of diseases or disorders strongly related to JNK signaling may also include the increase of JNK expression, for example by use of an IB peptide-specific antibody that blocks the binding of an IB-peptide to JNK, thus preventing JNK inhibition by the IB-related peptide. Prevention and/or treatment of a subject with the pharmaceutical composition as disclosed above may be typically accomplished by administering (in vivo) an (“therapeutically effective”) amount of said pharmaceutical composition to a subject, wherein the subject may be e.g. any mammal, e.g. a human, a primate, mouse, rat, dog, cat, cow, horse or pig. The term “therapeutically effective” means that the active component of the pharmaceutical composition is of sufficient quantity to ameliorate the disease or disorder strongly related to JNK signaling as defined above. Further example may be found for the other diseases mentioned herein.
Accordingly, the inventive transporter cargo conjugate molecule, the inventive pharmaceutical composition or the inventive vaccine, may be used for (the preparation of a medicament for) the prophylaxis, treatment, and/or amelioration of autoimmune disorders or diseases. Autoimmune disorders or diseases can be broadly divided into systemic and organ-specific or localised autoimmune disorders, depending on the principal clinico-pathologic features of each disease. Autoimmune diseases may be divided into the categories of systemic syndromes, including systemic lupus erythematosus (SLE), Sjögren's syndrome, Scleroderma, Rheumatoid Arthritis and polymyositis or local syndromes which may be endocrinologic (type I diabetes (Diabetes mellitus Type 1), Hashimoto's thyroiditis, Addison's disease etc.), dermatologic (pemphigus vulgaris), haematologic (autoimmune haemolytic anaemia), neural (multiple sclerosis) or can involve virtually any circumscribed mass of body tissue. The autoimmune diseases to be treated may be selected from the group consisting of type I autoimmune diseases or type II autoimmune diseases or type III autoimmune diseases or type IV autoimmune diseases, such as, for example, multiple sclerosis (MS), rheumatoid arthritis, diabetes, type I diabetes (Diabetes mellitus Type 1), chronic polyarthritis, Basedow's disease, autoimmune forms of chronic hepatitis, colitis ulcerosa, type I allergy diseases, type II allergy diseases, type III allergy diseases, type IV allergy diseases, fibromyalgia, hair loss, Bechterew's disease, Crohn's disease, Myasthenia gravis, neurodermitis, Polymyalgia rheumatica, progressive systemic sclerosis (PSS), Reiter's syndrome, rheumatic arthritis, psoriasis, vasculitis, etc, or type II diabetes. While the exact mode as to why the immune system induces an immune reaction against autoantigens has not been elucidated so far, there are several findings with regard to the etiology. Accordingly, the autoreaction may be due to a T-Cell bypass. A normal immune system requires the activation of B-cells by T-cells before the former can produce antibodies in large quantities. This requirement of a T-cell can be by-passed in rare instances, such as infection by organisms producing super-antigens, which are capable of initiating polyclonal activation of B-cells, or even of T-cells, by directly binding to the β-subunit of T-cell receptors in a non-specific fashion. Another explanation deduces autoimmune diseases from a Molecular Mimicry. An exogenous antigen may share structural similarities with certain host antigens; thus, any antibody produced against this antigen (which mimics the self-antigens) can also, in theory, bind to the host antigens and amplify the immune response. The most striking form of molecular mimicry is observed in Group A beta-haemolytic streptococci, which shares antigens with human myocardium, and is responsible for the cardiac manifestations of rheumatic fever.
The inventive transporter cargo conjugate molecule, the inventive pharmaceutical composition or the inventive vaccine, may also be used for (the preparation of a medicament for) the prophylaxis, treatment, and/or amelioration of cardiovascular diseases, preferably selected from heart diseases and coronary heart diseases, arteriosclerosis, apoplexy, dilatation of the abdominal aorta, such as infrarenal aneurism hypertension, and myocardial infarction.
Additionally, the inventive transporter cargo conjugate molecule, the inventive pharmaceutical composition or the inventive vaccine, may be used for (the preparation of a medicament for) the prophylaxis, treatment, and/or amelioration of neuronal or neurodegenerative diseases selected from, without being limited thereto, Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis (ALS), dystonia, epilepsy, optic nerve disease, including glaucoma, eye infection, multiple sclerosis, meningitis, neuronal diseases caused by or disorders or diseases or disorders of the nervous system, including the “cutting” or disruption of axons, such as axotomy, pain, particularly neuropathic pain, stroke, including ischemic stroke, and viral encephalopathy.
The inventive transporter cargo conjugate molecule, the inventive pharmaceutical composition or the inventive vaccine, may also be used for (the preparation of a medicament for) the prophylaxis, treatment, and/or amelioration of diseases of the liver selected from, without being limited thereto, Hepatitis, and hepatotoxicity.
Additionally, the inventive transporter cargo conjugate molecule, the inventive pharmaceutical composition or the inventive vaccine, may be used for (the preparation of a medicament for) the prophylaxis, treatment, and/or amelioration of diseases of the spine, selected from, without being limited thereto, disc herniation.
According to one preferred embodiment, the inventive transporter cargo conjugate molecule, the inventive pharmaceutical composition or the inventive vaccine, may be used for (the preparation of a medicament for) the prophylaxis, treatment, and/or amelioration of diseases of the uterus selected from, without being limited thereto, endometriosis.
According to another preferred embodiment, the inventive transporter cargo conjugate molecule, the inventive pharmaceutical composition or the inventive vaccine, may be used for (the preparation of a medicament for) the prophylaxis, treatment, and/or amelioration of depressive disorders selected from, without being limited thereto, major depressive disorders, also known as major depression, unipolar depression, clinical depression, or simply depression, bipolar disorders, mania and maniac depression.
According to a further preferred embodiment, the inventive transporter cargo conjugate molecule, the inventive pharmaceutical composition or the inventive vaccine, may be used for (the preparation of a medicament for) the prophylaxis, treatment, and/or amelioration of non-chronic or chronic inflammatory digestive diseases in a subject. The term “non-chronic or chronic inflammatory digestive disease” as used herein typically denotes non-chronic or chronic inflammatory diseases that pertain to the gastrointestinal tract. This includes diseases of the esophagus, stomach, first, second, third and fourth part of the duodenum, jejunum, ileum, the ileo-cecal complex, large intestine, (ascending, transverse and descending colon) sigmoid colon and rectum. Preferably included in this respect are chronic inflammatory digestive diseases, which are characterized by an inflammation of the colon, such as colitis, including e.g. Colitis ulcerosa (ulcerative colitis), Morbus Crohn (Crohn's disease), diversion colitis, ischemic colitis, infectious colitis, fulminant colitis, chemical colitis, microscopic colitis, lymphocytic colitis, collageneous colitis, indeterminate colitis and atypical colitis, etc.
In the context of the above, the invention relates also to the use of the inventive transporter cargo conjugate molecule the inventive pharmaceutical composition or the inventive vaccine, for the prophylaxis, treatment, and/or amelioration of diseases or disorders as mentioned herein. It also includes in particular the use of the inventive transporter cargo conjugate molecule, the inventive pharmaceutical composition or the inventive vaccine, for inoculation or the use of these components as an inoculant. According to one particularly preferred embodiment of the present invention, such a method for prophylaxis, treatment, and/or amelioration of the above-mentioned diseases or disorders, or an inoculation method for preventing the above-mentioned diseases, typically comprises administering the described inventive transporter cargo conjugate molecule, pharmaceutical composition or vaccine to a patient in need thereof (e.g. suffering from any of the above diseases or showing symptoms thereof), in particular to a human being, preferably in a “safe and effective amount” and in one of the above formulations as described above. The administration mode also may be as described above for inventive pharmaceutical compositions or vaccines.
According to a fifth aspect of the present invention, the inventive pharmaceutical composition, the inventive vaccine, the inventive transporter cargo conjugate molecule as defined above, the inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above, or variants or fragments thereof within the above definitions, may be utilized as a medicament. Such a medicament may be a pharmaceutical composition or a vaccine as shown above. It may be utilized in medical applications in general, preferably for any of the prophylaxis, treatment, and/or amelioration of diseases or disorders as mentioned herein.
According to a sixth aspect of the present invention, the inventive transporter cargo conjugate molecule and preferably the inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above may be utilized for the transport of any cargo molecule (preferably as defined herein) into cells or tissue of a patient to be treated. In this context, the cargo molecule is preferably suitable for a therapy as mentioned herein, particularly for the prophylaxis, treatment, and/or amelioration of diseases or disorders as mentioned herein and may be selected from any cargo molecule suitable therefore, more preferably from any cargo molecule as described above for any of components (B), (C), (D) and/or (E) of the inventive transporter cargo conjugate molecule. Thereby, the inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above may be coupled to such a cargo molecule using any of the coupling methods described for components (A), (B), (C), (D) and/or (E) above.
According to a particularly preferred embodiment of this aspect, the inventive transporter cargo conjugate molecule and more preferably the inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above, may be utilized for the transport of any cargo molecule as mentioned herein, e.g. as described above for any of components (B), (C), (D) and/or (E), into cells, preferably into blood cells, more preferably into white blood cells or preferably into neuronal cells. The transport may be effected in vitro, in vivo and/or ex vivo. Preferably, the transport is effected into the respective cells of a patient to be treated. Such a direction of the inventive transporter cargo conjugate molecule and more preferably of the inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) conjugated to a cargo as mentioned above is particularly suitable in the treatment of inflammatory diseases as mentioned above. For this purpose, the inventive transporter cargo conjugate molecule and more preferably the inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above, may be administered as described above for an inventive pharmaceutical composition or an inventive vaccine. Furthermore, the inventive transporter cargo conjugate molecule and more preferably the inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above, may be formulated as an inventive pharmaceutical composition or an inventive vaccine as described above for the purpose of administration. Administration routes are as defined above for an inventive pharmaceutical composition or an inventive vaccine. Alternatively, the inventive transporter cargo conjugate molecule and more preferably the inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above, may be administered directly without any further formulation, i.e. “naked”. Likewise, administration routes are preferably as described above for such a formulation.
According to a seventh aspect of the present invention, the inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above, the inventive transporter cargo conjugate molecule as defined above or variants or fragments thereof within the above definitions, the inventive pharmaceutical composition or the inventive vaccine may be utilized in diagnosis as a diagnostic tool, e.g. in (in vivo or in vitro) assays, e.g. in immunoassays, to detect, prognose, diagnose, or monitor various conditions and disease states of disorders or diseases mentioned.
As an example, immunoassay may be performed by a method comprising contacting a sample derived from a patient with an inventive transporter cargo conjugate molecule as defined above, wherein component (B) and/or any of components (C), (D) and/or (E) of the inventive transporter cargo conjugate molecule may be directed against a component or compound, e.g. a a (cell) specific component or compound, contained in the sample. Such a component (B) or any of components (C), (D) and/or (E) of the inventive transporter cargo conjugate molecule may be e.g. an antibody directed to a (cell) specific component or compound of the sample, wherein such (cell) specific component or compound of the sample may be e.g. a compound or component as described above for any of components (B), (C), (D) and/or (E) as defined above. Contacting of the sample is typically carried out under conditions that immunospecific-binding may occur, and subsequently detecting or measuring the amount of any immunospecific-binding by the antibody. In a specific embodiment, an antibody specific for a (cell) specific component or compound of the sample, e.g. component (B), (C), (D) and/or (E) as defined above, may be used to analyze a tissue or serum sample from a patient for the presence of such a component (B), (C), (D) and/or (E) as defined above or a disease associated therewith. Such diseases may include diseases or disorders as described herein. The immunoassays that may be utilized include, but are not limited to, competitive and non-competitive assay systems using techniques such as Western Blots, radioimmunoassays (RIA), enzyme linked immunosorbent assay (ELISA), “sandwich” immunoassays, immunoprecipitation assays, precipitin reactions, gel diffusion precipitin reactions, immunodiffusion assays, agglutination assays, fluorescent immunoassays, complement-fixation assays, immunoradiometric assays, and protein-A immunoassays, etc.
Alternatively, (in vitro) assays may be performed by delivering the inventive pharmaceutical composition, a vaccine or the inventive transporter cargo conjugate molecule as defined above or variants or fragments thereof within the above definitions to target cells typically selected from e.g. cultured animal cells, human cells or micro-organisms, and to monitor the cell response by biophysical methods typically known to a skilled person. The target cells typically used therein may be cultured cells (in vitro) or in vivo cells, i.e. cells composing the organs or tissues of living animals or humans, or microorganisms found in living animals or humans. Particularly preferable in this context are so called markes or labels, which may be contained as a component (B) or any of components (C), (D) and/or (E) of the inventive transporter cargo conjugate molecule, wherein such labels may be as defined in general above for the inventive transporter cargo conjugate molecule, e.g.
According to a final aspect of the present invention, the present invention also provides kits, particularly kits of parts, comprising as components alone or in combination, the inventive novel transporter construct according to generic formula (I) or according to any of subformulas (Ia), (Ib), (Ic), (Id), (Ie), or (If) above, the inventive transporter cargo conjugate molecule, the inventive pharmaceutical composition and/or the inventive vaccine, and optionally technical instructions with information on the administration and dosage of these components. Such kits, preferably kits of parts, may be applied, e.g., for or in any of the above mentioned applications or uses. The present invention additionally particularly provides the use of kits for diagnostic or therapeutic purposes, particular for the treatment, prevention or monitoring of diseases or disorders as disclosed.
The present invention is not to be limited in scope by the specific embodiments described herein. Indeed, various modifications of the invention in addition to those described herein will become apparent to those skilled in the art from the foregoing description and accompanying figures. Such modifications fall within the scope of the appended claims.
Various publications are cited herein, the disclosures of which are incorporated by reference in their entirety.
Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention, suitable methods and materials are described below. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety. In the case of conflict, the present specification, including definitions, will control. In addition, the materials, methods, and examples are illustrative only and not intended to be limiting. Other features and advantages of the invention will be apparent from the following detailed description and claims.
The following Figures are intended to illustrate the invention further. They are not intended to limit the subject matter of the invention thereto.
The following examples are intended to illustrate the invention further. They are not intended to limit the subject matter of the invention thereto.
a) Cell Line:
b) Culture Medium and Plates
c) Solutions
d) Microscopy and Fluorescence Plate Reader
e) Method
f) Cell Culture and Peptide Treatment
Acidic Wash and Cellular Extracts:
Suspension Cells (or Cells, which Don Attach Well to the Dish):
Adherent Cells:
Analysis of Peptide Internalization with a Fluorescence Plate Reader:
Test Samples and Conditions Used in the Experiments
a) Uptake (Internalization) of FITC-Labeled TAT Derived Transporter Constructs In Vitro (10 μM, HepG2 Hepatocarcinoma, HCT-116 Tumoral Colon, 24 h)
b) Uptake (Internalization) of FITC-Labeled TAT Derived Transporter Constructs in Vitro (10 μM, U937, Lymphoma, 24 h).
c) HSPG Dependency of Uptake (Internalization) of the D-TAT Transporter Construct
d) Exit of the FITC-Labeled TAT Derived Transporter Constructs in U937 Cells (Lymphoma)
e) Uptake (Internalization) and an Exit of the FITC-Labeled TAT Derived Transporter Constructs at 10 μM FITC-D-TAT in Non WBC-Lines (White Blood Cells Lines)
f) Conclusions
7.1. Peptide (D-Tat-Methionine, r3-L-TAT-Methionine and r3-L-TATi-Methionine) Synthesis
8.1 Conjugate Molecule (D-Tat-Chlorambucil, r3-L-TAT-Chlorambucil and r3-L-TATi-Chlorambucil) Synthesis
9.1. Conjugate Molecule (D-Tat-doxorubicine, r3-L-TAT-doxorubicine and r3-L-TATi-doxorubicine) Synthesis
10.1. Peptide (D-TAT-D-Cysteine r3-L-TAT-D-Cysteine and r3-L-TATi-D-Cysteine) Synthesis
24. Determining the Activity of Inventive Transporter Cargo Conjugate Molecules Comprising TAT Derived Transporter Constructs According to any of SEQ ID NOs: 8 to 136 and INK1 or IB1 Derived Cargo Peptides According to any of SEQ ID NOs: 137 to 220 in the Treatment of Viral Infections—Varicella-Zoster Virus (VZV)
A) Determination of the Cytotoxicity of Inventive Transporter Cargo Conjugate Molecules Comprising TAT Derived Transporter Constructs According to any of SEQ ID NOs: 8 to 136 and JNK1 or IB1 Derived Cargo Peptides According to any of SEQ ID NOs: 137 to 220:
B) Plaque Reduction Assay to Evaluate the Antiviral Effects of Inventive Transporter Cargo Conjugate Molecules Comprising TAT Derived Transporter Constructs According to any of SEQ ID NOs: 8 to 136 and JNK1 or IB1 Derived Cargo Peptides According to any of SEQ ID NOs: 137 to 220 Against Varicella-Zoster Virus (VZV):
C) Measurement of Varicella-Zoster Virus (VZV) Replication in Human Foreskin Fibroblasts (HFFs) with Inventive Transporter Cargo Conjugate Molecules Comprising TAT Derived Transporter Constructs According to any of SEQ ID NOs: 8 to 136 and INK1 or IB1 Derived Cargo Peptides According to any of SEQ ID NOs: 137 to 220:
1) Method and Experimental Approach
1.1) Bleomycin Administration
1.2) Bronchoalveolar Lavage Fluid (BALF)
1.3) Lung Homogenization
1.4) Cell Count and Determination
1.5) TNF Measurement
1.6) MPO-Measurement
1.7) Histology
a) Methods
b) Evaluation
a) Materials and Methods
c) Experimental Procedure
| Number | Date | Country | Kind |
|---|---|---|---|
| PCT/EP2008/011003 | Dec 2008 | EP | regional |
| PCT/EP2009/003927 | Jun 2009 | EP | regional |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/EP2009/009229 | 12/22/2009 | WO | 00 | 11/14/2011 |
