Patent Application
20160076037
The invention is directed to oligonucleotides consisting of 10 to 20 nucleotides of elected regions of the TGF-beta2 nucleic acid sequence, alternatively elected of the TGF-beta1 or TGF-beta3 nucleic acid sequence, which comprise modified nucleotides such as LNA, ENA, polyalkylene oxide-, 2′-fluoro, 2′-O-methoxy and/or 2′-O-methyl modified nucleotides.
Transforming growth factor beta (TGF-beta) is a protein that controls proliferation, cellular differentiation, and other functions in most cells. It is a type of cytokine which plays amongst others a role in immunity, cancer, heart disease, diabetes, Marfan syndrome, Loeys-Dietz syndrome, Parkinson's disease, and AIDS.
TGF-beta is a secreted protein that exists in at least three isoforms (TGF-beta1, TGF-beta2 and TGF-beta3) encoded by different genes but sharing strong sequence and structure homologies. TGF-beta acts as an antiproliferative factor in normal epithelial cells and at early stages of oncogenesis. However, later in tumor development TGF-beta can become tumor promoting through mechanisms including the induction of epithelial-to-mesenchymal transition (EMT), a process that is thought to contribute to tumor progression, invasion and metastasis (see “Glycoproteomic analysis of two mouse mammary cell lines during transforming growth factor (TGF)-beta induced epithelial to mesenchymal transition” 7th space.com.2009-01-08. Retrieved: 2009 Jan. 29).
In normal (epithelial) cells, TGF-beta stops the cell cycle at the G1 stage (and stops cell proliferation), induce differentiation, or promote apoptosis. When a cell is transformed into a cancer cell, TGF-beta no longer suppresses cell proliferation, which is often the result of mutations in the signaling pathway, and cancer cells proliferate.
Proliferation of stromal fibroblasts is also induced by TGF-beta. Both cells increase their production of TGF-beta. This TGF-beta acts on the surrounding stromal cells, immune cells, endothelial, smooth-muscle cells, and tumor microenvironment (see Pickup et al., “The roles of TGFβ in the tumour microenvironment”, Nature Reviews Cancer (2013), 13: 788-799). Thereby, it promotes angiogenesis, and by suppressing proliferation and activation of immune cells it causes immunosuppression.
TGF-beta1-deficient mice die from cardiac, pulmonary, and gastric inflammation, suggesting that TGF-beta has a vital role in suppressing the activation and proliferation of inflammatory cells. Smad3 is one of the key elements in TGF-beta dependent downstream signaling pathways. Smad3-deficient mice develop chronic mucosal infections due to impairment of T-cell activation and mucosal immunity, suggesting a key role for TGF-beta in these processes. With respect to cancer, the production and secretion of TGF-beta by certain cancer cells suppress the activities of infiltrating immune cells, thereby helping the tumor to escape host immunosurveillance. This immunosuppressive effect may be another important mechanism by which TGF-beta stimulates the growth of late-stage tumors (see Blobe G C et al., May 2000, “Role of transforming growth factor beta in human disease”, N. Engl. J. Med. 342 (18), 1350-1358). TGF-beta also converts effector T-cells, which normally attack cancer with an inflammatory (immune) reaction, into regulatory (suppressor) T-cells, which turn off the inflammatory reaction.
Further, TGF-beta is one of the most potent regulators of the production and deposition of extracellular matrix. It stimulates the production and affects the adhesive properties of the extracellular matrix by two major mechanisms. First, TGF-beta stimulates fibroblasts and other cells to produce extracellular-matrix proteins and cell-adhesion proteins, including collagen, fibronectin, and integrins. Second, TGF-beta decreases the production of enzymes that degrade the extracellular matrix, including collagenase, heparinase, and stromelysin, and increases the production of proteins that inhibit enzymes that degrade the extracellular matrix, including plasminogen-activator inhibitor type 1 and tissue inhibitor of metalloprotease. The net effect of these changes is to increase the production of extracellular-matrix proteins and either to increase or to decrease the adhesive properties of cells in a cell-specific manner. In many cancer cells the production of TGF-beta is increased, which increases the invasiveness of the cells by increasing their proteolytic activity and promoting their binding to cell-adhesion molecules (see Blobe G C et al., May 2000, “Role of transforming growth factor beta in human disease”, N. Engl. J. Med. 342 (18), 1350-1358).
Thus, therapeutic agents which are able to influence TGF-beta expression and activity, respectively, are essential in particular for use in preventing and/or treating TGF-beta linked diseases. EP 1008649 and EP 0695354, for example, disclose oligonucleotides hybridizing with the mRNA of TGF-beta1 and/or TGF-beta2, and which are suitable to be used for manufacturing pharmaceutical compositions for example for preventing and/or treating cancer. None of these oligonucleotides comprises modifications such as LNA, ENA etc.
WO 2003/85110, WO 2005/061710, and WO 2008/138904 for example refer to oligonucleotides comprising modifications of the nucleotides, which are directed to the inhibition of HIF-1A, Bcl-2 and HER3, respectively, usable in the treatment of cancer.
Criteria for the selection of oligonucleotides are mainly the length of the oligonucleotide, the GC-percentage, the tendency for hairpin formation, dimerization and the melting temperature (Tm). In general, high Tm (melting temperature) is preferred. Furthermore, the oligonucleotides must be specific for the target mRNA and shall not hybridize to non-target mRNAs in order to decrease potential off-target effects.
Hence, there is a high scientific and medical need for therapeutic agents, which reduce or inhibit TGF-beta expression and/or activity. Particularly, there is a long-standing need for oligonucleotides such as antisense oligonucleotides, which specifically interact and thus, reduce or inhibit the expression of TGF-beta1, TGF-beta2, and/or TGF-beta3, as well as oligonucleotides, which specifically inhibit TGF-beta1 and TGF-beta2, or TGF-beta1 and TGF-beta3, or TGF-beta2 and TGF-beta3, without causing any (severe) side effects.
The present invention refers to oligonucleotides consisting of 10 to 20, preferably 12 to 18 nucleotides of the TGF-beta2 nucleic acid sequence of SEQ ID NO. 1 (see
In particular, oligonucleotides of the present invention comprise or consist of 10 to 20, more preferred of 12 to 18 nucleotides of the region of nucleic acid no. 1380 to 1510 of SEQ ID NO. 1, wherein one or more nucleotide(s) of the oligonucleotide is/are modified. These oligonucleotides are highly effective in the reduction and inhibition of TGF-beta2 expression and activity, respectively. A preferred oligonucleotide comprises or consists of SEQ ID NO. 2 (e.g., ASPH36: GACCAGATGCAGGA), SEQ ID NO. 3 (e.g., ASPH80: GCGACCGTGACCAGAT), SEQ ID NO. 4 (e.g., ASPH98: GCGCGACCGTGACC), SEQ ID NO. 5 (e.g., ASPH111: AGCGCGACCGTGA), or SEQ ID NO. 6 (e.g., ASPH121 or ASPH153: GACCGTGACCAGAT), SEQ ID NO. 7 (e.g., ASPH15: CTGCCCGCGGAT), SEQ ID NO. 8 (e.g., ASPH17: TCTGCCCGCGGAT), SEQ ID NO. 9 (e.g., ASPH26 or ASPH27: GGATCTGCCCGCGGA), SEQ ID NO. 10 (e.g., ASPH37: CTTGCTCAGGATCTGCC), SEQ ID NO. 11 (e.g., ASPH52 or 53: GCTCAGGATCTGCCCGCGGA), SEQ ID NO. 12 (e.g., ASPH112: GGATCGCCTCGAT), SEQ ID NO. 13 (e.g., ASPH119: CCGCGGATCGCC), or SEQ ID NO. 31 (e.g., ASPH30: CGATCCTCTTGCGCAT).
In another embodiment the invention refers to an oligonucleotide, comprising or consisting of 10 to 20, more preferred of 12 to 18 nucleotides of the region of nucleic acid no. 2740 to 2810 of the TGF-beta2 nucleic acid sequence of SEQ ID NO. 1, wherein one or more nucleotide(s) of the oligonucleotide is/are modified. These oligonucleotides are highly effective in the reduction and inhibition of TGF-beta2 expression and activity, respectively. A preferred oligonucleotide comprises or consists of SEQ ID NO. 57 (e.g., ASPH65: TCTGAACTAGTACCGCC), SEQ ID NO. 73 (e.g., ASPH82: AACTAGTACCGCCTTT), or SEQ ID NO. 103 (e.g., ASPH115: CTAGTACCGCCTT).
In a further embodiment the invention refers to an oligonucleotide, comprising or consisting of 10 to 20, more preferred of 12 to 18 nucleotides of the region of nucleic acid no. 1660 to 1680 of the TGF-beta2 nucleic acid sequence of SEQ ID NO. 1 wherein one or more nucleotide(s) of the oligonucleotide is/are modified. These oligonucleotides are highly effective in the reduction and inhibition of TGF-beta1 and/or TGF-beta2 expression and activity, respectively. A preferred oligonucleotide comprises or consists of SEQ ID NO. 14 (e.g., ASHP01 or ASPH02: ACCTCCTTGGCGTAGTA), SEQ ID NO. 15 (e.g., ASPH03 or ASPH04: CCTCCTTGGCGTAGTA), SEQ ID NO. 16 (e.g., ASPH05, ASPH06, or ASPH07: CTCCTTGGCGTAGTA), or SEQ ID NO.17 (e.g., ASPH08: TCCTTGGCGTAGTA).
In another embodiment the invention relates to an oligonucleotide, comprising or consisting of 10 to 20, more preferred of 12 to 18 nucleotides, most preferably 13 nucleotides of the region of nucleic acid no. 2390 to 2410 of the TGF-beta2 nucleic acid sequence of SEQ ID NO. 1 wherein one or more nucleotide(s) of the oligonucleotide is/are modified. These oligonucleotides are highly effective in the reduction and inhibition of TGF-beta1, TGF-beta2, and/or TGF-beta3 expression and activity, respectively. A preferred oligonucleotide comprises or consists of SEQ ID NO. 18 (e.g., ASPH9 or ASPH10: CAGAAGTTGGCAT).
In another embodiment the invention relates to an oligonucleotide, comprising or consisting of 10 to 20, more preferred of 12 to 18 nucleotides of the TGF-beta2 nucleic acid sequence of SEQ ID NO. 1 wherein one or more nucleotide(s) of the oligonucleotide is/are modified. These oligonucleotides are highly effective in the reduction and inhibition of TGF-beta1, TGF-beta2, and/or TGF-beta3, most preferably of TGF-beta2 expression and activity, respectively. A preferred oligonucleotide comprises or consists of one of SEQ ID NO. 19 to 56, 58 to 72, 74 to 102, 104 to 138 (e.g., ASHP11-ASPH14, ASPH16, ASPH18-ASPH25, ASPH28-ASPH35, ASPH38-ASPH51, ASPH60-64, ASPH66-ASPH79, ASPH81, ASPH83-ASPH97, ASPH99-ASPH110, ASPH113, ASPH114, ASPH116-118, ASPH120, ASPH122-ASPH152, ASPH154-ASPH183, or T-LNA (SEQ ID NO: 144)).
Preferred oligonucleotides of the present invention are ASPH01, ASPH03, ASPH05, ASPH17, ASPH22, ASPH26, ASPH27, ASPH35, ASPH36, ASPH37, ASPH45, ASPH47, ASPH48, ASPH65, ASPH69, ASPH71, ASPH80, ASPH82, ASPH98, ASPH105, ASPH115, ASPH190, ASPH191, ASPH192, and ASPH193, respectively.
Further preferred oligonucleotides of the present invention are ASPH1000 to ASPH1132 as shown in Table 1, which preferably inhibit the expression and/or activity of TGFbeta1 mRNA. Preferred oligonucleotides this group are for example ASPH1047, ASPH1051, ASPH1059, ASPH1106, ASPH1139, ASPH1150, ASPH1162, ASPH1163, ASPH1175, ASPH1178, and ASPH1181, respectively.
In an alternative embodiment oligonucleotides are preferably inhibiting the expression and/or activity of TGF-beta3 mRNA. Such oligonucleotides are for example ASPH2000, ASPH2001, ASPH2002, ASPH2003, ASPH2004, ASPH2005, ASPH2006, ASPH2007, ASPH2008, ASPH2009, ASPH2010, ASPH2011, ASPH2012, ASPH2013, ASPH2014, ASPH2015, ASPH2016, ASPH2017, ASPH2018, ASPH2019, ASPH2020, ASPH2021, ASPH2022, ASPH2023, ASPH2024, ASPH2025, ASPH2026, ASPH2027, ASPH2028, ASPH2029, ASPH2030, ASPH2031, ASPH2032, ASPH2033, ASPH2034, ASPH2035, ASPH2036, ASPH2037, ASPH2038, ASPH2039, ASPH2040, ASPH2041, ASPH2042, ASPH2043, ASPH2044, ASPH2045, ASPH2046, ASPH2047, ASPH2048, ASPH2049, ASPH2050, ASPH2051, ASPH2052, ASPH2053, ASPH2054, ASPH2055, ASPH2056, ASPH2057, ASPH2058, ASPH2059, ASPH2060, ASPH2061, ASPH2062, ASPH2063, ASPH2064, ASPH2065, and ASPH2066, respectively.
Oligonucleotides of the present invention show an unexpected strong and specific inhibition of TGF-beta1, TGF-beta2, or TGF-beta3, or TGF-beta1 and TGF-beta2.
Alternatively, oligonucleotides of the present invention show strong and specific inhibition of TGF-beta1 and TGF-beta3, or TGF-beta1 and TGF-beta2, or TGF-beta2 and TGF-beta3, and in a further alternative TGF-beta1, TGF-beta2 and TGF-beta3.
Modifications of one or more nucleotides of the oligonucleotides of the present invention are selected from the group consisting of LNA, ENA, polyalkylene oxide such as triethylene glycol (TEG), 2′-fluoro, 2′-O-methoxy and 2′-O-methyl. The modifications are preferably located at the 5′- and/or 3′-end of the oligonucleotide. An oligonucleotide comprising such modified nucleotide is a modified oligonucleotide.
Modified nucleotides are for example arranged in a row, one directly next to the other, or in different patterns, where one or more unmodified nucleotides follow a modified nucleotide. For example an oligonucleotide starts with one or more modified nucleotides followed by one or more, e.g., one, two, three or four, unmodified or unlocked nucleotides followed again by one or more modified nucleotides. In one embodiment both ends of the oligonucleotide comprise an identical pattern of modified and unmodified or unlocked nucleotides. In another embodiment, the pattern of modifications at the 3′- and 5′-end differ including that one end does not comprise a modified nucleotide. Preferably the modified oligonucleotides comprise a series of 8 or 9 unlocked nucleotides.
Alternatively, a nucleotide at any other position in the oligonucleotide is modified, or at least one nucleotide at the 5′- and/or 3′-end of the oligonucleotide and at any other position in the oligonucleotide. For example ASPH1071, ASPH1100, ASPH1109, ASPH 1110, ASPH1111, ASPH1115, ASPH1126, ASPH1127 and ASPH1128 belong to a group of TGF-beta oligonucleotides, for example TGF-beta1 oligonucleotides, which comprises modified nucleosides such as LNA, ENA etc. in different patterns, e.g., separated from each other by an unlocked nucleotide. The oligonucleotides comprise either one type of modification, or one or more different modifications. Optionally, at least one phosphate linkage between two consecutive nucleotides (modified or unmodified) of the oligonucleotide is a phosphorothioate or a methylphosphonate. In a preferred embodiment, the oligonucleotides of the present invention are phosphorothioates.
Moreover, the present invention refers to TGF-beta antisense oligonucleotides, which interact and inhibit the expression of more than one TGF-beta isoform, even if the oligonucleotide is not 100% complementary to the TGF-beta1, TGF-beta2 and/or TGF-beta3 sequence. Such antisense oligonucleotides are for example ASPH1024, ASPH1096, ASPH1131 and ASPH1132, respectively. These oligonucleotides preferably interact with TGF-beta sequences of different species such as human and mouse as for example ASPH1131 and ASPH1132, respectively.
All the oligonucleotides of the different embodiments are for use in a method of the prevention and/or treatment of a malignant or a benign tumor, an immunologic disease, fibrosis (e.g., idiopathic pulmonary fibrosis, renal fibrosis, kidney fibrosis), cirrhosis (e.g., liver cirrhosis), scleroderma or related dermatologic diseases, an eye disease such as glaucoma or posterior capsular opacification (PCO), a CNS disease, hair loss etc.
a) to 3c) depict the inhibition of the expression of TGF-beta1 and TGF-beta2 mRNA in human A172 glioma cells. A172 cells were transfected with different modified oligonucleotides in a dose of 10 nM (in the presence of a transfecting agent), and the inhibition of the TGF-beta1 (white columns) and TGF-beta2 (black columns) mRNA expression was measured 24 h after transfection.
a) to 4c) depict the inhibition of the expression of TGF-beta1 and TGF-beta2 mRNA in human Panc-1 pancreatic cancer cells. Panc-1 cells were transfected with different modified oligonucleotides in a dose of 10 nM (in the presence of a transfecting agent), and the inhibition of the TGF-beta1 (white columns) and TGF-beta2 (black columns) mRNA expression was measured 24 h after transfection.
a shows the inhibition of the expression of TGF-beta1, TGF-beta2 and TGF-beta3 mRNA in human Panc-1 and RenCa cells. Cells were transfected with different modified oligonucleotides in a dose of 3.3 μM in the absence of any transfection reagent (gymnotic transfection or unassisted transfection or gymnotic delivery), and inhibition of the TGF-beta1 (black column), TGF-beta2 (white column) and TGF-beta3 (striped column) mRNA expression was measured 72 h after transfection.
a and 29b present a compared analysis of time-dependent plasma (29a) and kidney (29b) concentration (PK profiles; with values expressed in μg/mL or μg/gr) and downregulation of TGF-β2 mRNA (PD profile) in kidney following single subcutaneous bolus administration of 50 mg/kg of ASPH—0047 to Balb/c mice.
The present invention is directed to oligonucleotides, in particular antisense oligonucleotides, which comprise at least one modified nucleotide and are suitable to interact with TGF-beta mRNA. The oligonucleotides comprise or consist of 10 to 20, more preferred 12 to 18 nucleotides of the TGF-beta2 nucleic acid according to SEQ ID NO. 1 or of the TGF-beta1 nucleic acid according to SEQ ID NO. 335, or of the nucleic acid sequence of TGF-beta3 nucleic acid according to SEQ ID NO. 336. Most preferred the oligonucleotide comprises or consists of 12, 13, 14, 15, 16, 17, or 18 nucleotides. The oligonucleotides are preferably selected from the region of nucleic acid no. 1380 to 1510 (preferably no. 1380 to 1450 and/or no. 1480 to 1510), 1660 to 1680, or 2390 to 2410 of SEQ ID NO. 1. The oligonucleotide is a single or double stranded RNA or DNA, including siRNA, microRNA, apatmer or spiegelmer. Preferably, the oligonucleotide is an antisense oligonucleotide.
A nucleotide forms the building block of an oligonucleotide, and is for example composed of a nucleobase (nitrogenous base, e.g., purine or pyrimidine), a five-carbon sugar (e.g., ribose, 2-deoxyribose, arabinose, xylose, lyxose, allose, altorse, glucose, mannose, gulose, idose, galactose, talose or stabilized modifications of those sugars), and one or more phosphate groups. Examples of modified phosphate groups are phosphorothioate or methylphosphonate. Each compound of the nucleotide is modifiable, and is naturally or non-naturally occurring. The latter are for example locked nucleic acid (LNA), a 2′-O,4′-C-ethylene-bridged nucleic acid (ENA), polyalkylene oxide- (such as triethylene glycol (TEG)), 2′-fluoro, 2′-O-methoxy and 2′-O-methyl modified nucleotides as described for example by Freier & Altmann (Nucl. Acid Res., 1997, 25, 4429-4443) and Uhlmann (Curr. Opinion in Drug & Development (2000, 3 (2): 293-213), which are shown in
A LNA is a modified RNA nucleotide, wherein the ribose moiety is modified with an extra bridge connecting the 2′ oxygen and 4′ carbon (2′-4′ribonucleoside). The bridge “locks” the ribose in the 3′-endo (North) conformation, which is often found in the A-form duplexes. LNA nucleosides and nucleotides, respectively, comprise for example the forms of thio-LNA, oxy-LNA, or amino-LNA, in alpha-D- or beta-L-configuration, and are mixable and combineable, respectively, with DNA or RNA residues in the oligonucleotide.
The oligonucleotides of the present invention, i.e., modified oligonucleotides, comprise at least one modified nucleotide, preferably LNA and/or ENA, at the 5′- and/or 3′-end of the oligonucleotide. In a preferred embodiment, the oligonucleotide comprises 1, 2, 3, or 4 LNAs or ENAs at the 5′-end, and 1, 2, 3, or 4 LNAs or ENAs at the 3′-end. In another preferred embodiment, the oligonucleotide comprises 1, 2, 3, or 4 LNAs or ENAs at the 5′-end or 3′-end, and a polyalkylene oxide such as TEG at the 3′- or 5′-end. The modified oligonucleotides show a significantly increased inhibition on TGF-beta expression and activity, respectively, which results in an improved prevention and/or treatment of a malignant or benign tumor, fibrosis (e.g., idiopathic pulmonary fibrosis, renal fibrosis, kidney fibrosis), cirrhosis (e.g., liver cirrhosis), scleroderma or related dermatologic diseases, an eye disease such as glaucoma or posterior capsular opacification (PCO), a CNS disease, hair loss etc. The oligonucleotides of the present invention target TGF-beta linked diseases either by hybridization with TGF-beta mRNA, preferably TGF-beta1, TGF-beta2, or TGF-beta3, alternatively, TGF-beta1, TGF-beta2, and/or TGF-beta3 mRNAs, i.e., TGF-beta1 and TGF-beta2, or TGF-beta1 and TGF-beta3, or TGF-beta2 and TGF-beta3, or TGF-beta1, TGF-beta2 and TGF-beta3 mRNAs, or any other direct or indirect effect on the TGF-beta system.
Preferably two or more oligonucleotides are combined, wherein at least one oligonucleotide specifically inhibits TGF-beta1 and at least one oligonucleotide specifically inhibits TGF-beta2, or wherein at least one oligonucleotide specifically inhibits TGF-beta1 and at least one oligonucleotide specifically inhibits TGF-beta3, or wherein at least one oligonucleotide specifically inhibits TGF-beta2 and at least one oligonucleotide specifically inhibits TGF-beta3, or wherein at least one oligonucleotide specifically inhibits TGF-beta1, at least one oligonucleotide specifically inhibits TGF-beta2, and at least one oligonucleotide specifically inhibits TGF-beta3.
In another embodiment, one oligonucleotide inhibits two TGF-beta isoforms such as TGF-beta1 and TGF-beta2, TGF-beta2 and TGF-beta3, or TGF-beta1 and TGF-beta3.
An oligonucleotide inhibiting the expression of all three isoforms—TGF-beta1, TGF-beta2, and TGF-beta3—is defined as pan-specific oligonucleotide.
In a further embodiment three or more oligonucleotides are combined, wherein at least one oligonucleotide specifically inhibits TGF-beta1, another oligonucleotide specifically inhibits TGF-beta2, and a further oligonucleotide specifically inhibits TGF-beta3, and optionally one or more additional oligonucleotides inhibiting TGF-beta1, TGF-beta2 or TGF-beta3.
The oligonucleotides of the present invention have for example an IC50 in the range of 0.1 to 20 μM, preferably in the range of 0.2 to 15 μM, more preferably in the range of 0.4 to 10 μM, and even more preferred in the range of 0.5 to 5 μM.
The present invention further refers to a pharmaceutical composition comprising an oligonucleotide according to the invention as active ingredient. The pharmaceutical composition comprises at least one oligonucleotide of the present invention and optionally further an antisense compound, an antibody, a chemotherapeutic compound, an anti-inflammatory compound, an antiviral compound and/or an immuno-modulating compound. Pharmaceutically acceptable binding agents and adjuvants or carrier optionally comprise part of the pharmaceutical composition.
In one embodiment, the oligonucleotide and the pharmaceutical composition, respectively, is formulated as dosage unit in form of capsules, tablets and pills etc., respectively, which contain for example the following compounds: microcrystalline cellulose, gum or gelatin as binders; starch or lactose as excipients; stearates as lubricants, various sweetening or flavouring agents. For capsules the dosage unit may contain a liquid carrier like fatty oils. Likewise coatings of sugar or enteric agents may be part of the dosage unit.
The oligonucleotide and/or the pharmaceutical composition is administrable via different routes. These routes of administration include, but are not limited to, electroporation, epidermal, impression into skin, intra-arterial, intra-articular, intracranial, intradermal, intra-lesional, intra-muscular, intranasal, intra-ocular, intrathecal, intracameral, intraperitoneal, intraprostatic, intrapulmonary, intraspinal, intratracheal, intratumoral, intravenous, intravesical, placement within cavities of the body, nasal inhalation, oral, pulmonary inhalation (e.g., by inhalation or insufflation of powders or aerosols, including by nebulizer), subcutaneous, subdermal, topical (including ophthalmic and to mucous membranes including vaginal and rectal delivery), or transdermal administration.
For parenteral, subcutaneous, intradermal or topical administration the oligonucleotide and/or the pharmaceutical composition include for example a sterile diluent, buffers, regulators of toxicity and antibacterials. In a preferred embodiment, the oligonucleotide or pharmaceutical composition is prepared with carriers that protect against degradation or immediate elimination from the body, including implants or microcapsules with controlled release properties. For intravenous administration the preferred carriers are for example physiological saline or phosphate buffered saline. An oligonucleotide and/or a pharmaceutical composition comprising such oligonucleotide for oral administration includes for example powder or granule, microparticulate, nanoparticulate, suspension or solution in water or non-aqueous media, capsule, gel capsule, sachet, tablet or minitablet. An oligonucleotide and/or a pharmaceutical composition comprising for parenteral, intrathecal, intracameral or intraventricular administration includes for example sterile aqueous solutions which optionally contain buffer, diluent and/or other suitable additive such as penetration enhancer, carrier compound and/or other pharmaceutically acceptable carrier or excipient.
A pharmaceutically acceptable carrier is for example liquid or solid, and is selected with the planned manner of administration in mind so as to provide for the desired bulk, consistency, etc., when combined with a nucleic acid and the other components of a given pharmaceutical composition. Typical pharmaceutically acceptable carriers include, but are not limited to, a binding agent (e.g. pregelatinized maize starch, polyvinylpyrrolidone or hydroxypropyl methylcellulose, etc.); filler (e.g. lactose and other sugars, microcrystalline cellulose, pectin, gelatin, calcium sulfate, ethyl cellulose, polyacrylates or calcium hydrogen phosphate, etc.); lubricant (e.g., magnesium stearate, talcum, silica, colloidal silicon dioxide, stearic acid, metallic stearates, hydrogenated vegetable oils, corn starch, polyethylene glycols, sodium benzoate, sodium acetate, etc.); disintegrate (e.g., starch, sodium starch glycolate, etc.); or wetting agent (e.g., sodium lauryl sulphate, etc.). Sustained release oral delivery systems and/or enteric coatings for orally administered dosage forms are described in U.S. Pat. Nos. 4,704,295; 4,556,552; 4,309,406; and 4,309,404. An adjuvant is included under these phrases.
Beside being used in a method of human disease prevention and/or treatment, the oligonucleotide and/or the pharmaceutical composition according to the present invention is also used in a method for prevention and/or treatment of other subjects including veterinary animals, reptiles, birds, exotic animals and farm animals, including mammals, rodents, and the like. Mammals include for example horses, dogs, pigs, cats, or primates (for example, a monkey, a chimpanzee, or a lemur). Rodents include for example rats, rabbits, mice, squirrels, or guinea pigs.
The oligonucleotide or the pharmaceutical composition according to the invention is used in a method for the prevention and/or treatment of many different diseases, preferably benign or malignant tumors, immunologic diseases, bronchial asthma, heart disease, fibrosis (e.g., liver fibrosis, idiopathic pulmonary fibrosis, liver cirrhosis, kidney cirrhosis, scleroderma), diabetes, wound healing, disorders of the connective tissue (e.g., in heart, blood vessel, bone, joint, eye such as the Marfan or Loeys-Dietz syndrome), psoriasis, eye diseases (e.g., glaucoma, posterior capsular opacification (PCO) also known as secondary cataract), CNS disease (e.g., Alzheimer's disease, Parkinson's disease), coronary atherosclerosis (coronary intervention or coronary artery bypass graft (CABG) surgery or hair loss. A tumor is for example selected from the group of solid tumors, blood born tumors, leukemias, tumor metastasis, hemangiomas, acoustic neuromas, neurofibromas, trachomas, pyogenic granulomas, astrocytoma such as anaplastic astrocytoma, acoustic neuroma, blastoma, Ewing's tumor, craniopharyngloma, ependymoma, medulloblastoma, glioma, glioblastoma, hemangloblastoma, Hodgkins-lymphoma, medullablastoma, leukaemia, melanoma such as primary and/or metastatic melanoma, mesothelioma, myeloma, neuroblastoma, neurofibroma, non-Hodgkins lymphoma, pinealoma, retinoblastoma, sarcoma, seminoma, trachomas, Wilm's tumor, bile duct carcinoma, bladder carcinoma, brain tumor, breast cancer, bronchogenic carcinoma, carcinoma of the kidney, cervical cancer, choriocarcinoma, choroidcarcinoma, cystadenocarcinome, embryonal carcinoma, epithelial carcinoma, esophageal cancer, cervical carcinoma, colon carcinoma, colorectal carcinoma, endometrial cancer, gallbladder cancer, gastric cancer, head cancer, liver carcinoma, lung carcinoma, medullary carcinoma, neck cancer, non-small-cell bronchogenic/lung carcinoma, ovarian cancer, pancreas carcinoma, papillary carcinoma, papillary adenocarcinoma, prostate cancer, small intestine carcinoma, prostate carcinoma, rectal cancer, renal cell carcinoma (RCC, e.g., clear cell RCC, papillary RCC, chromophobe RCC), oncocytoma kidney cancer, transitional cell kidney cancer, retinoblastoma, skin cancer, small-cell bronchogenic/lung carcinoma, squamous cell carcinoma, sebaceous gland carcinoma, testicular carcinoma, and uterine cancer. The oligonucleotide or the pharmaceutical composition of the present invention is not only used in a method for the prevention and/or treatment of a tumor, but likewise on a metastasis.
The antisense oligonucleotides of the present invention are characterized in that they show an unexpected low toxicity (see for example Table 5) and thus, are well tolerated by different organisms. They oligonucleotides show a reasonable distribution in the organism, wherein highest concentrations are measured in the kidney, liver, skin and spleen.
The present invention provides numerous oligonucleotides, which are highly efficient in the reduction and inhibition, respectively, of TGF-beta, in particular TGF-beta1, TGF-beta2 and/or TGF-beta3 expression due to the specific selection of the sequence of the oligonucleotide and the modification of the nucleotide. The following Table 1 shows numerous preferred modified oligonucleotides according to the present invention (bold letters indicate the modified nucleoside). Each oligonucleotides is defined as ASPH and a number, which is defined by a specific sequence and modification of the nucleosides:
GACCAGATGCAGGA
GCGACCGTGACCAGAT
GCGCGACCGTGACC
AGCGCGACCGTGA
GACCGTGACCAGAT
GACCGTGACCAGAT
CTGCCCGCGGAT
TCTGCCCGCGGAT
GGATCTGCCCGCGGA
GGATCTGCCCGCGGA
CTTGCTCAGGATCTGCC
GCTCAGGATCTGCCCGCGGA
GCTCAGGATCTGCCCGCGGA
GGATCGCCTCGAT
CCGCGGATCGCC
ACCTCCTTGGCGTAGTA
ACCTCCTTGGCGTAGTA
CCTCCTTGGCGTAGTA
CCTCCTTGGCGTAGTA
CTCCTTGGCGTAGTA
CTCCTTGGCGTAGTA
CTCCTTGGCGTAGTA
TCCTTGGCGTAGTA
CAGAAGTTGGCAT
CAGAAGTTGGCAT
AAGTGGGCGGGAT
AAGTGGGCGGGAT
AAGTGGGCGGGAT
GCGGGATGGCAT
GAAATCACCTCCG
AAGTGGGCGGGAT
TGTAGCGCTGGGT
CGAAGGAGAGCCA
TCGCGCTCGCAGGC
AAGTGGGCGGGATG
ATGTAGCGCTGGGT
CGAAGGAGAGCCAT
GAAAGTGGGCGGGAT
CGAAGGAGAGCCATT
CGATCCTCTTGCGCAT
AAGTGGGCGGGATGGC
GATGGAAATCACCTCCG
AAACCTCCTTGGCGTAG
TAGAAAGTGGGCGGGAT
GGCGGGATGGCAT
GGGTCTGTAGAAAGTG
GAAGGAGAGCCATTC
CCAGGTTCCTGTCTT
TCTGATCACCACTGG
TTTCTGATCACCACTGG
GTCTGTAGGAGGGCA
AGTCTGTAGGAGGGCA
TCTGTAGGAGGGC
CAGATGCCAGTTTTAAC
CAAAGTATTTGGTCTCC
CCTTAAGCCATCCATGA
GTACTGGCCAGCTAA
GCCTCGATCCTCTTGCGCAT
GCCTCGATCCTCTTGCGCAT
AAACCTCCTTGGCGTAGTAC
AAACCTCCTTGGCGTAGTAC
GAAAGTGGGCGGGATGGCAT
GAAAGTGGGCGGGATGGCAT
GAATTGCTCGCTTAGGG
CGTCGCGGTTGCGTTCA
CGTGGCCTACACCCTGG
TTCTAAAGCAATAGGCC
AGAATGGTTAGAGGTTC
TCTGAACTAGTACCGCC
CCCATTAATATGACCTC
TTTAGTTAGAACCCTAA
CCTCAGATATAGATAAC
TACTATTATGGCATCCC
TGCCCACTTGCATACTA
AGCGTAATTGGTCATCA
CGTTGGCAGAACATAGA
GGGATACTGTCTAGACC
ATTGGCAACTCGTTTGA
CGTCAGGCTAATATTC
GGATGACTCCCTAGAC
GTCGCGGTTGCGTTCA
CTCGGTACTCGGTCGG
GGTTCGGTCCTGCCTT
AATAGGCCGCATCCAA
AACTAGTACCGCCTTT
TCGGTCATATAATAAC
AGACCGTCAGGCTAA
GTCGCGGTTGCGTTC
TTCCACTGCGGCGCT
AAGGAGCGGTTCGGT
CTCGGGTGCGGAGTG
CTGACTTTGGCGAGT
GATAGGAACGGTACG
CACTTTGGATTCCCG
GTCGCGGTTGCGTT
TACACCCTGGCGGG
CTCGGTACTCGGTC
AGGAGCGGTTCGGT
GTCTCGGGTGCGGA
TACGGGACGGGCAG
CGTCGCTCCTCTCG
TAGCGCTGGGTTGG
AAGCAATAGGCCGC
TACGGGCATGCTCC
AGGCGCGGGATAGG
TTTGGATTCCCGCC
ACCACTAGAGCACC
GCGTTGGCAGAACA
TTGCTCGCTTAGG
GTCGCGGTTGCGT
GGCGCTCGGTACT
ATCTGAACTCGGC
CGGTTGGTCTGTT
TCCACCCTAGATC
CTAGTACCGCCTT
GGTCGGCAGTCAA
CTTGCGACACCC
GAGCGGTTCGGT
ACACAGTAGTGCAT
GGGTCTGTAGAAAG
GGGTCTGTAGAAAG
GGTTGGAGATGTTA
GGTTGGAGATGTTA
TGGGTTGGAGATGT
TGGGTTGGAGATGT
GCTGGGTTGGAGAT
GCTGGGTTGGAGAT
GCGCTGGGTTGGAG
GCGCTGGGTTGGAG
AGCGCTGGGTTGGA
AGCGCTGGGTTGGA
TAGCGCTGGGTTGG
TAGCGCTGGGTTGG
GTAGCGCTGGGTTG
GTAGCGCTGGGTTG
GATGTAGCGCTGGG
GATGTAGCGCTGGG
CCATTCGCCTTCTG
CCATTCGCCTTCTG
GAGAGCCATTCGCC
GAGAGCCATTCGCC
AGCAGGGACAGTGT
AGCAGGGACAGTGT
GCAGGAGATGTGGG
GCAGGAGATGTGGG
CGGTTGGTCTGTTG
CGGTTGGTCTGTTG
CCGGTTGGTCTGTT
CCGGTTGGTCTGTT
GCCGGTTGGTCTGT
GCCGGTTGGTCTGT
AGTTGGCATTGTAC
AGTTGGCATTGTAC
GGTTAGAGGTTCTA
GGTTAGAGGTTCTA
ATGGTTAGAGGTTC
ATGGTTAGAGGTTC
AGAATGGTTAGAGG
AGAATGGTTAGAGG
AGAGAATGGTTAGA
AGAGAATGGTTAGA
CGTTGTCGTCGTCA
CGTTGTCGTCGTCA
ACCAAGGCTCTCTT
ACCAAGGCTCTCTT
GCTTCTTGTCTCTC
GCTTCTTGTCTCTC
GGAACGGTACGTAC
GGAACGGTACGTAC
TAGGAACGGTACGT
TAGGAACGGTACGT
GGGATAGGAACGGT
GGGATAGGAACGGT
CGCGGGATAGGAAC
CGCGGGATAGGAAC
AGGCGCGGGATAGG
AGGCGCGGGATAGG
GTCAAGCTGGATGG
GTCAAGCTGGATGG
TCTGTAGGAGGGC
GACCAGATGCAGGA
CTCCTTGGCGTAGTA
CCTCCTTGGCGTAGTA
CAGATGCCAGTTTTAAC
AGCGTAATTGGTCATCA
AGTATTTGGTCTCC
AAGTATTTGGTCTC
AAGTATTTGGTCTCC
CAAAGTATTTGGTCTCC
AGCTCGTCCCTCCTCCC
GAGGGCTGGTCCGGAAT
CGAGGGCTGGTCCGGAA
GAGGGCGGCATGGGGGA
GCGGGTGCTGTTGTACA
CGCGGGTGCTGTTGTAC
GTCGCGGGTGCTGTTGT
GGTCGCGGGTGCTGTTG
CCGGTCGCGGGTGCTGT
CCCGGTCGCGGGTGCTG
AGCACGCGGGTGACCTC
TTAGCACGCGGGTGACC
GGGCTCGTGGATCCACT
CCTTGGGCTCGTGGATC
TGGCATGGTAGCCCTTG
CGAGGGCTGGTCCGGA
GCGGGTGCTGTTGTAC
GCACGCGGGTGACCTC
CCTTGGGCTCGTGGAT
GGCATGGTAGCCCTTG
GGGTGCTGTTGTAC
TCGCGGGTGCTGTT
GTCGCGGGTGCTGT
CTCGTGGATCCACT
ATGGTAGCCCTTGG
TGGCATGGTAGCCC
GAAGTTGGCATGGT
TCGCGGGTGCTGT
CACCCGGTCGCGG
CCACCCGGTCGCG
CGCCAGGAATTGT
GGCTCGTGGATCC
TGGGCTCGTGGAT
GCATGGTAGCCCT
AGTTGGCATGGTA
TTGCAGGAGCGCA
ATTAGCACGCGGGTGAC
ACCATTAGCACGCGGGT
CACCATTAGCACGCGGG
CCACCATTAGCACGCGG
TCCACCATTAGCACGCG
TCCACCTTGGGCTTGCG
TTAGCACGCGGGTGAC
ACCATTAGCACGCGGG
CACCATTAGCACGCGG
CACCATTAGCACGCG
GCGGCACGCAGCACG
TCGATGCGCTTCCG
TAGCACGCGGGTGA
ATTAGCACGCGGGT
CATTAGCACGCGGG
ACCATTAGCACGCG
CACCATTAGCACGC
CCACCATTAGCACG
TCCACCATTAGCAC
GACCTTGCTGTACT
GGACCTTGCTGTAC
AGGACCTTGCTGTA
CGGCACGCAGCACG
ACCTTGGGCTTGCG
TTAGCACGCGGGT
ACCATTAGCACGC
CGGCACGCAGCAC
CACCAGCTCCATGTCGA
TCGCGGGTGCTGTTGTA
GTGTCCAGGCTCCAAAT
GTGTCCAGGCTCCAAAT
GCTCGTCCCTCCTCCC
ACCAGCTCGTCCCTCC
GGAGGCCCCGCCCCTG
CATGGGGGAGGCGGCG
CATGGGGGAGGCGGCG
ACCAGCTCCATGTCGA
GGTCGCGGGTGCTGTT
GGACCTTGCTGTACTG
GGACCTTGCTGTACTG
TCCACCTTGGGCTTGC
AGCTCGTCCCTCCTC
CCAGCTCGTCCCTCC
GAGGGCTGGTCCGGA
TCCCGAGGGCTGGTC
CGGCATGGGGGAGGC
CAGCTCCATGTCGAT
ACCAGCTCCATGTCG
TCGCGGGTGCTGTTG
GTCGCGGGTGCTGTT
GGTCGCGGGTGCTGT
AGCACGCGGGTGACC
TAGCACGCGGGTGAC
CATTAGCACGCGGGT
TCCACCATTAGCACG
CCAGGAATTGTTGCT
TTGGGCTCGTGGATC
CTTGGGCTCGTGGAT
TTGGCATGGTAGCCC
GAAGTTGGCATGGTA
AGAAGTTGGCATGGT
TGTCCAGGCTCCAAA
AGGACCTTGCTGTAC
CACCTTGGGCTTGCG
CACCTTGGGCTTGCG
AGCTCGTCCCTCCT
CAGCTCGTCCCTCC
ACCAGCTCGTCCCT
CCCGAGGGCTGGTC
GCGGCATGGGGGAG
GTCTTGCAGGTGGA
TCGATGCGCTTCCG
TCGATGCGCTTCCG
TCGATGCGCTTCCG
TCGATGCGCTTCCG
TCGATGCGCTTCCG
GGACAGGATCTGGC
ACCTCCCCCTGGCT
ACCATTAGCACGCG
ACCATTAGCACGCG
CAGCAGTTCTTCTC
TACAGCTGCCGCAC
AGTTGGCATGGTAG
AGTTGGCATGGTAG
AAGTTGGCATGGTA
GAAGTTGGCATGGT
TCCAGGCTCCAAAT
ACCTTGCTGTACTG
ACCTTGGGCTTGCG
ACCTTGGGCTTGCG
ACCTTGGGCTTGCG
ACCTTGGGCTTGCG
ACCTTGGGCTTGCG
TTGCAGGAGCGCAC
GCAGAAGTTGGCAT
CGGGTGCTGTTGTA
CGGGTGCTGTTGTA
CCCAGCGGCAACGGAAA
CAAGAGGTCCCCGCGCC
GCGTCCCCGGCGGCAAA
GGTCGGCGACTCCCGAG
TCGGAGAGAGATCCGTC
ATCCCACGGAAATAACC
CTCAGTATCCCACGGAA
ACTGCCGAGAGCGCGAA
CTGATGTGTTGAAGAAC
TGAGGTATCGCCAGGAA
ACTGCCGCACAACTCCG
CGGCCCACGTAGTACAC
CCCAGCGGCAACGGAA
TCGCGCCAAGAGGTCC
GGTCGGCGACTCCCGA
GTCGGAGAGAGATCCG
TCAGTATCCCACGGAA
CGAGAGCGCGAACAGG
ACTGCCGAGAGCGCGA
GGCGTCAGCACCAGTA
GGTTTCCACCATTAGC
GAGGTATCGCCAGGAA
AACCACTGCCGCACAA
CGGCCCACGTAGTACA
CGGCGGCTCGTCTCA
CCCAGCGGCAACGGA
TCGCGCCAAGAGGTC
CGTCGCGCCAAGAGG
GGAGCAAGCGTCCCC
GTGCGCCCGAGGTCT
GTCTAGGATGCGCGG
CAGTATCCCACGGAA
CCGAGAGCGCGAACA
GGCGTCAGCACCAGT
GTTGCTGAGGTATCG
ACCACTGCCGCACAA
CGGCCCACGTAGTAC
CTCGGCGACTCCTT
AGCGGCAACGGAAA
TCGCGCCAAGAGGT
TCCCCGGCGGCAAA
TGCGCCCGAGGTCT
GTCTAGGATGCGCG
GGTCGGAGAGAGAT
CACGGAAATAACCT
AGAGCGCGAACAGG
ATAGTCCCGCGGCC
TAGTAGTCGGCCTC
ATAGATTTCGTTGT
GAGGTATCGCCAGG
GCCGCACAACTCCG
TCGCGCCAAGAGG
AAGCGTCCCCGGC
GACGCCGTGTAGG
GTCGGCGACTCCC
TGCGCCCGAGGTC
GTCGGAGAGAGAT
TCCCACGGAAATA
TGCCGAGAGCGCG
TAGTCCCGCGGCC
TAGTAGTCGGCCT
CATAGATTTCGTT
TTTAACTTGAGCC
GAGGTATCGCCAG
ACTCCGGTGACAT
GCCCACGTAGTAC
TCGGCGACTCCC
GTCGGCGACTCC
CAGGAAGCGCTGGCAAC
GGTGCATGAACTCACTG
GTCCCCTAATGGCTTCC
ATCTGTCCCCTAATGGC
CCGGGTGCTGTTGTAAA
CCTGGATCATGTCGAAT
CCCTGGATCATGTCGAA
GTAGCACCTGCTTCCAG
GGGCTTTCTAAATGAC
TGACTCCCAGCAGGCC
GTGCATGAACTCACTG
GGTGCATGAACTCACT
ATCTGTCCCCTAATGG
CGGGTGCTGTTGTAAA
CCGGGTGCTGTTGTAA
CCTGGATCATGTCGAA
CCCTGGATCATGTCGA
TTTGAATTTGATTTCC
GGGCCTGAGCAGAAGT
GGGGGCTTTCTAAAT
TTTGTTTACACTTCC
CCAGCTAAAGGTGGG
ATGGCTGGGTCCCAA
GAGTTTTTCCTTAGG
AGGGGTGGCAAGGCA
TGACTCCCAGCAGGC
GAAGCGCTGGCAACC
GTGCATGAACTCACT
GTGGTGCAAGTGGAC
CTAATGGCTTCCACC
CCCCTAATGGCTTCC
ATCTGTCCCCTAATG
GATCTGTCCCCTAAT
AGATCTGTCCCCTAA
GGTGCTGTTGTAAAG
CCGGGTGCTGTTGTA
GATCATGTCGAATTT
CCTGGATCATGTCGA
CCCTGGATCATGTCG
GATTTCCATCACCTC
TTGAATTTGATTTCC
AGCAGTTCTCCTCCA
GCCTGAGCAGAAGTT
GGGCAAGGGCCTGAG
CCCACACTTTCTTTA
TAGCACCTGCTTCCA
CGGGGGCTTTCTAA
CCATTCATGCTTTC
AAGCGCTGGCAACC
ACCAGAGCCCTTTG
CCCCTAATGGCTTC
GTCCCCTAATGGCT
ATCTGCCCCTAAT
AGATCTGTCCCCTA
CGGGTGCTGTTGTA
ATCATGTCGAATTT
CCCTGGATCATGTC
CCTTTGAATTTGAT
TTGCGGAAGCAGTA
GCCTGAGCAGAAGT
GGGGGCTTTCTAA
AGCGCTGGCAACC
CCCCTAATGGCTT
CCCCTAATGGCTT
TCCCCTAATGGCT
TCATGTCGAATTT
ATCATGTCGAATT
Table 1 shows the nucleic acid sequences of selected oligonucleotides of the present invention as well as the modifications of the nucleotides, wherein LNA 4+4 means 4×LNAs at the 5′- and 3′-end of the oligonucleotide are modified, wherein LNA 4+3 means 4×LNAs at the 5′-end and 3×LNAs at the 3′-end of the oligonucleotide are modified, wherein LNA 3+4 means 3×LNAs at the 5′-end and 4×LNAs at the 3′-end of the oligonucleotide are modified, wherein LNA 3+3 means 3×LNAs at the 5′- and 3′-end of the oligonucleotide are modified, wherein LNA 3+2 means 3×LNAs at the 5′-end and 2×LNAs at the 3′-end of the oligonucleotide are modified, wherein LNA 2+3 means 2×LNAs at the 5′-end and 3×LNAs at the 3′-end of the oligonucleotide are modified, wherein LNA 2+2 means 2×LNAs at the 5′- and 3′-end of the oligonucleotide are modified. Alternatively, some oligonucleotides comprise ENA 4+4, i.e., 4×ENA at the 5′- and 3′-end of the oligonucleotide are modified, or ENA 3+3, i.e., 3×ENA at the 5′- and 3′-end of the oligonucleotide are modified. Further oligonucleotides comprise 2′ 0-meth 4+4, wherein the oligonucleotide comprises 4×2′ O-methyl modified nucleotides at the 5′- and 3′-end of the oligonucleotide, or comprises 2′ fluoro 4+4, wherein the oligonucleotide comprises 4×2′ fluoro modified nucleotides at the 5′- and 3′-end. Oligonucleotides comprising LNA 3+TEG comprise 3×LNAs at the 5′-end and one triethylene glycol (TEG) at the 3′-end of the oligonucleotide. Some oligonucleotides comprise LNAs which are not arranged in a row but are separated by an unlocked nucleoside having for example the sequences 3LNA+9N+1LNA+1N+2LNA, 1LNA+1N+2LNA+8N+1LNA+1N+1LNA, 2LNA+8N+2LNA+1N+1LNA, 2LNA+9N+1LNA+1N+1LNA, 2LNA+8N+1LNA+2N+1LNA, 3LNA+8N+1LNA+1N+1LNA, 3LNA+8N+1LNA+1N+1LNA, 2LNA+9N+1LNA+1N+1LNA, or 2LNA+8N+2LNA+1N+1LNA, wherein “N” is a nucleoside without locked modification. “ASPH” in combination with a number refers to the different oligonucleotides and their different modifications as described in Table 1. These modified oligonucleotides were tested e.g. in experiments shown in the following examples. The antisense oligonucleotides of the present invention can be described differently, e.g., ASPH47, ASPH0047, ASPH—47 or ASPH—0047 referring to the same oligonucleotide.
For the purpose of clarity and a concise description, features are described herein as part of the same or separate embodiments, however, it will be appreciated that the scope of the invention may include embodiments having combinations of all or some of the features described.
The following examples will serve to further illustrate the present invention without, at the same time, however, constituting any limitation thereof. On the contrary, it is to be clearly understood that the scope of the present invention refers to various other embodiments, modifications, and equivalents thereof which, after reading the description herein, may suggest themselves to those skilled in the art without departing from the spirit of the invention.
In the following examples, the effect of the oligonucleotides listed in Table 1 has been tested in view of the reduction and inhibition, respectively, of TGF-beta1 and/or TGF-beta2 expression. SEQ ID NO. 144 (T-LNA: CGGCATGTCTATTTTGTA, wherein 3×nucleotides at the 5′- and 3′-end are LNAs) and SEQ ID NO. 145 (scr-LNA: CGTTTAGGCTATGTACTT, wherein 3×nucleotides at the 5′- and 3′-end are LNAs) are used as control oligonucleotides, wherein SEQ ID NO. 145 (negative control) is the scrambled form of SEQ ID NO. 144 (positive control). The cells were either transfected in the presence of a transfecting agent (e.g., Lipofectamine), or in the absence of any transfecting agent (which is defined as gymnotic transfection or unassisted transfection or gymnotic delivery). In case of gymnotic delivery the entry of the oligonucleotide into the cell solely depends on the interaction of the oligonucleotide with the cell (no compound/agent supports the entry). Therefore, gymnotic transfection or gymnotic delivery is considered to reflect better conditions of the in vivo settings.
Human A172 glioma cells were transfected with 10 nM of ASPH01, ASPH02, ASPH03, ASPH04, ASPH05, ASPH06, ASPH07, ASPH08, ASPH09, ASPH10, ASPH11, ASPH12, ASPH13, ASPH14, ASPH15, ASPH16, ASPH17, ASPH18, ASPH19, ASPH20, ASPH21, ASPH22, ASPH24, ASPH25, ASPH26, ASPH27, ASPH29, ASPH30, ASPH31, ASPH32, ASPH33, ASPH34, ASPH35, ASPH36, ASPH37, ASPH38, ASPH39, ASPH40, ASPH41, ASPH42, ASPH43, ASPH44, ASPH45, ASPH46, ASPH47, ASPH48, ASPH49, ASPH50, ASPH51, ASPH52, ASPH53, and ASPH54 (see
Human Panc-1 pancreatic cancer cells were transfected with 10 nM of ASPH01, ASPH02, ASPH03, ASPH04, ASPH05, ASPH06, ASPH07, ASPH08, ASPH12, ASPH14, ASPH17, ASPH18, ASPH20, ASPH21, ASPH22, ASPH24, ASPH25, ASPH26, ASPH27, ASPH29, ASPH30, ASPH31, ASPH32, ASPH33, ASPH35, ASPH36, ASPH37, ASPH38, ASPH39, ASPH40, ASPH41, ASPH42, ASPH43, ASPH44, ASPH45, ASPH46, ASPH47, ASPH48, ASPH49, ASPH50, ASPH51, and ASPH52 (see
In further experiments the inhibitory effect of each of ASPH01, ASPH03, ASPH05, ASPH17, ASPH18, ASPH22, ASPH26, ASPH27, ASPH33, ASPH36, ASPH37, ASPH41, ASPH42, ASPH45, ASPH46, ASPH47, ASPH48, ASPH49, ASPH64, ASPH65, ASPH66, ASPH69, ASPH71, ASPH80, ASPH82, ASPH88, ASPH89, ASPH90, ASPH98, ASPH99, ASPH102, ASPH105, ASPH115, ASPH121, ASPH140, ASPH153, ASPH165, ASPH171, ASPH178, ASPH181, ASPH184, ASPH185, ASPH186, ASPH187, ASPH188, ASPH189, and of the controls of SEQ ID NO.144 and SEQ ID NO. 145 was tested in human A172 glioma cells. A172 cells were transfected with these modified oligonucleotides in doses of 20 nM, 4 nM, 0.8 nM, 0.16 nM, and 0.04 nM, respectively, in the presence of a transfecting agent. The remaining TGF-beta2 mRNA was measured 24 h after transfection. TGF-beta2 values were normalized to GAPDH and oligonucleotide concentrations resulting in 50% reduction of TGF-beta2 mRNA (=IC50 values) were calculated. All IC50 values were referenced to the IC50 value of ASPH—036 (ASPH36) that was 0.33 nM and the results are shown as fold-difference of the IC50 value of ASPH—036 Table 2:
All the modified oligonucleotides show an IC50 in a low nanomolar to picomolar range, which is markedly lower than IC50 of the positive control oligonucleotide of SEQ ID NO. 144; the IC50 of the negative control of SEQ ID NO. 145 was not calculable.
Human Panc-1 pancreatic cancer cells were treated with 3.3 μM of ASPH17, ASPH18, ASPH22, ASPH25, ASPH33, ASPH35, ASPH36, ASPH41, ASPH42, ASPH45, ASPH46, ASPH47, ASPH48, ASPH49, ASPH65, ASPH66, ASPH67, ASPH69, ASPH71, ASPH79, ASPH80, ASPH82, ASPH88, ASPH89, ASPH90, ASPH91, ASPH98, ASPH99, ASPH102, ASPH105, ASPH111, ASPH115, ASPH119, ASPH121, ASPH139, ASPH140, ASPH146, ASPH151, ASPH153, ASPH165, ASPH171, ASPH172, ASPH176, ASPH178, ASPH180, and ASPH183, respectively, or the controls of SEQ ID NO. 144 and 145 in the absence of a transfecting agent (gymnotic transfection or gymnotic delivery). The inhibitory effect of the modified oligonucleotides on expression of TGF-beta1 and TGF-beta2 mRNA, respectively, was determined 72 h after treatment start. Under gymnotic delivery experimental conditions, the oligonucleotides enter the cells and strongly inhibit the expression of TGF-beta2 mRNA. The results of the experiments are shown in
In further experiments human Panc-1 pancreatic cancer cells were transfected with 10 μM of modified oligonucleotides ASPH01, ASPH03, ASPH05, ASPH09, ASPH17, ASPH18, ASPH22, ASPH35, ASPH36, ASPH37, ASPH41, ASPH45, ASPH46, ASPH47, and ASPH48, respectively, or the controls of SEQ ID NO. 144 and 145 in the absence of a transfecting agent (gymnotic transfection or gymnotic delivery). The oligonucleotides were added to the cells for 2 days, after which medium was changed, and further incubation for 2 days was carried out in oligonucleotide-containing medium. Expression of TGF-beta1 mRNA (
In another experiment dose dependency of the inhibitory effect of modified oligonucleotides of the present invention was tested. Human Panc-1 pancreatic cancer cells were treated with 15 μM, 10 μM, 7.5 μM, 5 μM, 2.5 μM, 1.25 μM, or 0.625 μM ASPH05 or ASPH36, or the controls of SEQ ID NO. 144 and 145, respectively, without using a transfection reagent. The oligonucleotides were added to the cells for 2 days. Thereafter media were changed and cells were incubated for 2 further days in oligonucleotide-containing medium, after which (total treatment time: 4 days) the expression of TGF-beta1 (
Mouse SMA-560 glioma cells were transfected with 10 nM ASPH01, ASPH03, ASPH05, ASPH09, ASPH17, ASPH18, ASPH22, ASPH26, ASPH36, ASPH37, ASPH41, ASPH42, ASPH45, ASPH46, ASPH47, or ASPH48, or the controls of SEQ ID NO. 144 and 145, respectively, in the presence of a transfecting agent. 24 h after transfection, the inhibition of the expression of TGF-beta1 (white columns) and TGF-beta2 (black columns) mRNA was determined. The pan-specific ASPH09 inhibits the expression of the mouse TGF-beta1 mRNA, and the other oligonucleotides tested strongly inhibit the expression of the mouse TGF-beta2 mRNA. The results are presented in
Female athymic nude mice (Hsd:Athymic Nude-Foxn1nu) were treated for 5 consecutive days with 14 mg/kg or 50 mg/kg of oligonucleotide ASPH01, ASPH03, ASPH05, ASPH17, ASPH22, ASPH37, ASPH41, ASPH45, ASPH46, ASPH47, or ASPH48, and control of SEQ ID NO. 145, respectively, or saline by subcutaneous injection. The day after the last treatment, the mice were sacrificed. Mouse TGF-beta2 mRNA was quantified in kidney tissue lysates. In
In another experiment human Panc-1 pancreatic cancer cells were transfected with 10 μM of modified oligonucleotide ASPH09 or the control of SEQ ID NO. 145 in the absence of any transfecting agent (gymnotic transfection or gymnotic delivery). The oligonucleotides were added to the cells for 2 days, after medium was changed, and further incubation for 2 days was carried out in oligonucleotide-containing medium. Expression of TGF-beta3 mRNA (see
Human Panc-1 pancreatic cancer cells were treated with 10 μM, 3.3 μM, 1.1 μM, 0.37 μM, and 0.12 μM of ASPH03, ASPH36, ASPH45, ASPH47, ASPH65, ASPH69, AASPH71, ASPH80, ASPH115, ASPH 121, ASPH153, ASPH185, and ASPH189, respectively, in the absence of a transfecting agent (gymnotic transfection or gymnotic delivery). The inhibitory effect of the modified oligonucleotides on expression of TGF-beta2 mRNA, was determined 72 h after treatment start. TGF-beta2 values were normalized to GAPDH and oligonucleotide concentrations resulting in 50% reduction of TGF-beta2 mRNA (=IC50 values) were calculated. Under gymnotic delivery experimental conditions, the oligonucleotides enter the cells and strongly inhibit the expression of TGF-beta2 mRNA. The results of the experiments are shown in Table 3:
All the modified oligonucleotides show an IC50 in the low micromolar or even submicromolar range, showing that they have very high potency even without the requirement of a transfection reagent.
Human Panc-1 pancreatic cancer cells were treated with 10 μM, 3.3 μM, 1.1 μM, 0.37 μM, and 0.12 μM of ASPH47, ASPH190, ASPH191, ASPH192, and ASPH193, respectively, in the absence of a transfecting agent (gymnotic transfection or gymntic delivery). The inhibitory effect of the modified oligonucleotides on expression of TGF-beta2 mRNA, was determined 72 h after treatment start. TGF-beta2 values were normalized to GAPDH and oligonucleotide concentrations resulting in 50% reduction of TGF-beta2 mRNA (=IC50 values) were calculated. Under gymnotic delivery experimental conditions, the oligonucleotides enter the cells and strongly inhibit the expression of TGF-beta2 mRNA. The results of the experiments are shown in Table 4:
All the modified oligonucleotides show an IC50 in the submicromolar to lower submicromolar range, showing that they have extremely high potency even without the requirement of a transfection reagent.
Human Panc-1 pancreatic cancer cells were transfected with 10 nM of ASPH05, ASPH09, ASPH1000, ASPH1001, ASPH1002, ASPH1003, ASPH1004, ASPH1005, ASPH1006, ASPH 1007, ASPH1008, ASPH1009, ASPH1010, ASPH1011, ASPH1012, ASPH1013, ASPH1014, ASPH1015, ASPH1016, ASPH1017, ASPH1018, ASPH1019, ASPH1020, ASPH1021, ASPH1022, ASPH1023, ASPH1024, ASPH1026, ASPH1027, ASPH1028, ASPH1029, ASPH1030, ASPH1031, ASPH1032, ASPH1033, ASPH1034, ASPH1035, ASPH1036, ASPH 1038, ASPH1039, ASPH1040, ASPH1041, ASPH1042, ASPH1043, ASPH1044, ASPH1045, ASPH1046, ASPH1047, ASPH1048, ASPH1049, ASPH1050, ASPH1051, ASPH1052, ASPH1054, ASPH1055, ASPH1056, ASPH1057, ASPH1058, ASPH1059, ASPH1060, or ASPH1061 and the control of SEQ ID NO. 145, respectively, in the presence of a transfecting agent. The expression of TGF-beta1 mRNA was determined 24 h after transfection. Significant reduction of the expression of TGF-beta1 in Panc-1 cells is shown in
Mouse SMA-560 glioma cells were transfected with 10 nM of ASPH09, ASPH1000, ASPH1001, ASPH1002, ASPH1003, ASPH1004, ASPH1005, ASPH1006, ASPH1007, ASPH1008, ASPH1009, ASPH1010, ASPH1011, ASPH1012, ASPH1013, ASPH1014, ASPH1015, ASPH1016, ASPH1017, ASPH1018, ASPH1019, ASPH1020, ASPH1021, ASPH1022, ASPH1023, ASPH1024, ASPH1026, ASPH1027, ASPH1028, ASPH1029, ASPH1030, ASPH1031, ASPH1032, ASPH1033, ASPH1034, ASPH1035, ASPH1036, ASPH1037, ASPH1038, ASPH1039, ASPH1040, ASPH1041, ASPH1042, ASPH1043, ASPH1044, ASPH1045, ASPH1046, ASPH1047, ASPH1048, ASPH1049, ASPH1050, ASPH1051, ASPH1052, ASPH1053, ASPH1054, ASPH1055, ASPH1056, ASPH1057, ASPH1058, ASPH1059, ASPH1060, ASPH1061, or ASPH1062 and the control of SEQ ID NO. 145, respectively, in the presence of a transfecting agent. The expression of TGF-beta1 mRNA was determined 24 h after transfection. Significant reduction of the expression of TGF-beta1 in SMA-560 cells is shown in
In these experiments, human A172 glioma cells were transfected with 10 nM of ASPH05, ASPH09, ASPH1000, ASPH1001, ASPH1002, ASPH1004, ASPH1005, ASPH1006, ASPH1007, ASPH1008, ASPH1009, ASPH1010, ASPH1011, ASPH1012, ASPH1013, ASPH1014, ASPH1015, ASPH1016, ASPH1017, ASPH1018, ASPH1019, ASPH1020, ASPH1021, ASPH1022, ASPH1023, ASPH1024, ASPH1026, ASPH1027, ASPH1028, ASPH1029, ASPH1030, ASPH1031, ASPH1032, ASPH1033, ASPH1034, ASPH1035, ASPH1036, ASPH1038, ASPH1039, ASPH1040, ASPH1041, ASPH1042, ASPH1043, ASPH1044, ASPH1045, ASPH1046, ASPH1047, ASPH1048, ASPH1049, ASPH1050, ASPH1051, ASPH1052, ASPH1053, ASPH1054, ASPH1056, ASPH1057, ASPH1058, ASPH1059, ASPH1060, ASPH1061, or ASPH1062, and the control of SEQ ID NO. 145, respectively, in the presence of a transfecting agent. The expression of TGF-beta1 and TGF-beta2 mRNA was determined 24 h after transfection. Significant reduction of the expression of TGF-beta1 mRNA is shown in
Human Panc-1 pancreatic cancer cells were treated with 3.3 μM of ASPH05, ASPH09, ASPH1000, ASPH1001, ASPH1002, ASPH1004, ASPH1006, ASPH1007, ASPH1008, ASPH1009, ASPH1010, ASPH1011, ASPH1012, ASPH1013, ASPH1014, ASPH1015, ASPH1017, ASPH1018, ASPH1019, ASPH1020, ASPH1021, ASPH1022, ASPH1024, ASPH1026, ASPH1027, ASPH1028, ASPH1029, ASPH1032, ASPH1033, ASPH1034, ASPH1035, ASPH1036, ASPH1037, ASPH1038, ASPH1039, ASPH1040, ASPH1041, ASPH1042, ASPH1043, ASPH1044, ASPH1045, ASPH1046, ASPH1047, ASPH1049, ASPH1050, ASPH1051, ASPH1052, ASPH1053, ASPH1054, ASPH1055, ASPH1056, ASPH1057, ASPH1058, ASPH1059, ASPH1060, ASPH1061, or ASPH1062, or the control of SEQ ID NO. 145 in the absence of a transfecting agent (gymnotic transfection or gymnotic delivery). The inhibitory effect of the modified oligonucleotides on expression of TGF-beta1 and TGF-beta2 mRNA, respectively, was determined 72 h after treatment start. Significant reduction of the expression of TGF-beta1 mRNA is shown in
Human A172 glioma cells were treated with 10 nM (in the presence of a transfecting agent), of ASPH09, ASPH1047, ASPH1051, ASPH1059, ASPH1063, ASPH1064, ASPH1065, ASPH1066, ASPH1067, ASPH1068, ASPH1069, ASPH1070, ASPH1071, ASPH1072, ASPH1073, ASPH1074, ASPH1075, ASPH1076, ASPH1077, ASPH1078, ASPH1079, ASPH1080, ASPH1081, ASPH1082, ASPH1083, ASPH1084, ASPH1085, ASPH1086, ASPH1087, ASPH1088, ASPH1089, ASPH1090, ASPH1091, ASPH1092, ASPH1093, ASPH1094, ASPH1095, ASPH1097, ASPH1098, ASPH1099, ASPH1100, ASPH1101, ASPH1102, ASPH1103, ASPH1104, ASPH1105, ASPH1106, ASPH1107, ASPH1108, ASPH1109, ASPH1110, ASPH1111, ASPH1112, ASPH1113, ASPH114, ASPH1115, ASPH1116, ASPH1117, ASPH1118, ASPH1119, ASPH1120, ASPH1121, ASPH1122, ASPH1123, ASPH1124, ASPH1125, ASPH1126, ASPH1127, ASPH1128, ASPH1129, ASPH1130, ASPH1131, and ASPH1132, respective1, or the positive control ASPH1047. The expression of TGF-beta1 (black column), TGF-beta2 (white column) and TGF-beta3 (striped column) mRNA was determined 24 h after transfection. Significant reduction of the expression of TGF-beta1 mRNA is shown in
Either human Panc-1 pancreatic cancer cells (
Mice bearing human Panc-1 pancreatic carcinoma subcutaneous tumors were treated with 1, 3, 10, and 30 mg/kg of ASPH47 under various treatment schedules: Q1Dx1-d6 (single SC injection, termination 5 days later), Q1Dx5-d6 (daily SC injection for 5 days, termination 24 hours later), and Q1Dx5-d10 (daily SC injection for 5 days, termination 5 days later). There was a dose dependent down-regulation of TGF-beta2 mRNA in the kidney of these animals. TGF-beta2 down-regulation was persistent up to 5 days after the last treatment with ASPH47, even after only single administration. TGF-beta 2 expression was detected by bDNA assay (branched DNA assay, which is a sandwich nucleic acid hybridization method that uses bDNA molecules to amplify signal from captured target RNA) and normalized to GAPDH. As shown in
Mice bearing human Panc-1 pancreatic carcinoma subcutaneous tumors on both left and right flanks were treated with a daily subcutaneous injection of 1, 5, 15 or 50 mg/kg oligonucleotides for five consecutive days. The tumors were collected 24 hours after the last treatment and snap frozen. TGF-beta mRNA expression in tumors was detected by bDNA assay. Data—representing TGF-beta2 to GAPDH mRNA ratio—are shown as a box plot in which median values and min. and max. values are presented (data expressed as n=5). TGF-beta2 mRNA was down-regulated in tumors treated with various oligonucleotides (
Mice bearing human 786-0 renal cell carcinoma subcutaneous tumors on both left and right flanks were treated with a daily injection of 50 mg/kg oligonucleotides for five consecutive days. The tumors were collected 24 hours after the last treatment and snap frozen. TGF-beta mRNA expression in tumors was detected by bDNA assay. There was significant down-regulation of TGF-beta2 mRNA in tumors treated with ASPH05, ASPH17, ASPH26, ASPH36, ASPH45, ASPH47, ASPH71, ASPH82, ASPH98, and ASPH105 (
Human Panc-1 pancreatic cancer cells were transfected with 20, 6.67, 2.22, 0.74, 0.25, 0.08 or 0.009 μM of the modified oligonucleotides ASPH47, ASPH1047, ASPH1106, ASPH1132, or ASPH47 in combination with ASPH1047; results are shown in
Human Panc-1 pancreatic cancer cells (
Human A172 glioma cells were treated for 24 h with 10 nM (in the presence of a transfecting agent), of ASPH0009, ASPH1132, ASPH2000, ASPH2001, ASPH2002, ASPH2003, ASPH2004, ASPH2006, ASPH2007, ASPH2008, ASPH2009, ASPH2010, ASPH2011, ASPH2012, ASPH2013, ASPH2014, ASPH2016, ASPH2017, ASPH2018, ASPH2020, ASPH2021, ASPH2022, ASPH2023, ASPH2024, ASPH2025, ASPH2026, ASPH2027, ASPH2028, ASPH2029, ASPH2030, ASPH2031, ASPH2032, ASPH2033, ASPH2034, ASPH2035, ASPH2036, ASPH2037, ASPH2038, ASPH2039, ASPH2040, ASPH2041, ASPH2042, ASPH2043, ASPH2044, ASPH2045, ASPH2047, ASPH2049, ASPH2050, ASPH2051, ASPH2052, ASPH2053, ASPH2054, ASPH2056, ASPH2057, ASPH2058, ASPH2059, ASPH2060, ASPH2061, ASPH2062, ASPH2063, or ASPH2066. The expression of TGF-beta1 (black column), TGF-beta2 (white column) and TGF-beta3 (striped column) mRNA was then determined from cell extracts by bDNA assay. Significant reduction of the expression of TGF-beta3 mRNA is shown in
Sequences of selected oligonucleotides were aligned with rabbit mRNA sequences of TGF-beta1 and 2. ASPH—0036 (TGF-beta2 selective antisense oligonucleotide, based on human mRNA sequence) showed 100% homology with rabbit TGF-beta2 mRNA, while ASPH—1059 (TGF-beta1 selective antisense oligonucleotide, based on human mRNA sequence) showed 100% homology with rabbit TGF-beta1 mRNA.
Rabbit Rab-9 skin fibroblasts were treated with 5 nM or 20 nM of either ASPH—0036 and ASPH—1059 in the presence of a transfecting agent for 24 hr. The expression of TGF-beta1 and TGF-beta2 mRNA was then determined in cell extracts by bDNA assay. Significant reduction of the expression of TGF-beta1 mRNA (51 and 77% at 5 and 20 nM, respectively) was achieved with ASPH—1059. Significant reduction of TGF-beta2 mRNA (79 and 80% at 5 and 20 nM, respectively) was achieved with ASPH—0036.
Balb/C mice were treated with a single subcutaneous injection of ASPH—0047 (formulated in sterile physiological saline) at 5, 20 and 50 mg/kg animal body weight. Plasma and tissues were collected at the indicated times (from 3 individual animals), immediately snap-frozen and stored at −80° C. until analysis with an AEX-HPLC method (plasma/tissue PK) or for measurement of TGF-β2 and GAPDH mRNA levels by bDNA assay. TGF-β2 mRNA levels were expressed relative to GAPDH mRNA expression level in corresponding samples.
The data depict that a single subcutaneous bolus administration of 50 mg/kg ASPH—0047 resulted in rapid transfer of the drug from subcutaneous to circulating blood compartments (TMAX of ˜5-30 min), biphasic pharmacokinetic profile in plasma, with rapid initial elimination phase (within the first 24 hrs), followed by long terminal half-life (
Immunodeficient mice were injected subcutaneously with human 786-O renal cell carcinoma cells (
Balb/c mice were injected with mouse Renca cells into renal subcapsule (
Human Panc-1 pancreatic cancer cells were treated with 3.3 μM of the indicated oligonucleotides in the absence of transfecting agent (gymnotic transfection or gymnotic delivery). The expression of TGF-beta1 (black column), TGF-beta2 (white column) and TGF-beta3 (striped column) mRNA was determined 72 h after transfection. Significant reduction of the expression of TGF-beta1 mRNA is shown in
Balb/c mice were injected with mouse 4T1 cells into mammary fat pad on Day 0. Systemic treatment with saline (Mock), pan-TGF-beta antibody (1D11), control oligonucleotide (LNA-scr), or ASPH—0047 started on Day 3 (30 mg/kg, s.c., twice weekly) and continued until D28, when animals were sacrificed. Number of lung metastasis was macroscopically evaluated, and level of lung metastasis was determined by either number of metastasis (left panel) or based on lung weight (right panel). Under described experimental design, treatment with ASPH—0047 reduced metastasis to the lungs, whereas the positive control, monoclonal TGF-beta antibody 1D11 had no effect on pulmonary metastasis in this model.
CB17 SCID or Balb/c nude mice (n=3-5, except ASPH—0018 n=1 and ASPH—0037 n=2) were treated with 14-15 mg/kg of indicated LNA-modified oligonucleotides for four or five consecutive days (Q1Dx4-5). Plasma was collected 24 h after the last treatment and ALT levels were determined in plasma. Results are expressed as median values. Under this experimental condition, only 6/48 (12.5%) of tested oligonucleotides induced marked increase in plasma ALT (>300 units/l) indicating liver toxicity. The following Table 7 shows liver toxicity of systemically administered LNA-modified oligonucleotides:
| Number | Date | Country | Kind |
|---|---|---|---|
| 13161474.5 | Mar 2013 | EP | regional |
| 13173078.0 | Jun 2013 | EP | regional |
| 13199826.2 | Dec 2013 | EP | regional |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2014/056221 | 3/27/2014 | WO | 00 |
