Patent Application
20140220055
The present invention relates to a cancer vaccine for transdermal administration comprising a WT1 peptide and/or a modified WT1 peptide, and a cellular immunity induction promoter.
There are a cancer vaccine that prevents virus infection to prevent a cancer caused by the virus, and a cancer vaccine which provides the result that cancer cells are specifically attacked by the immune system via the recognition of a cancer-specific antigen by the immune mechanism, particularly, the cellular immune mechanism in which cytotoxic T cells (CTL) play an important role. The former is not effective at all for a cancer in which the virus does not participate. The latter is a cancer therapeutic strategy of targeting an antigen possessed by a cancer cell itself. It is considered that the latter is widely effective for cancers having antigen by specifying the antigen. Inter alia, a cancer vaccine based on the viewpoint of the latter can treat tumors that are difficult to remove by surgical operation because of their size, and causes less side effects as compared with the conventional therapies such as chemotherapy and radiation therapy.
WT1 (Wilm's tumor 1) gene is overexpressed in many hematopoietic tumors and solid cancers, for example, acute myelocytic leukemia, acute lymphocytic leukemia, chronic myelocytic leukemia, myelodysplastic syndrome, multiple myeloma, non-Hodgkin's lymphoma, lung cancer, breast cancer, stomach cancer, large intestine/rectum cancer, pancreas cancer, bile duct cancer, head and neck squamous cell cancer, thyroid cancer, kidney cancer, prostate cancer, ovarian cancer, uterine cancer, bone soft tissue sarcoma, malignant melanoma, malignant mesothelioma, testicular germ cell tumor and malignant glioma. Those cancers overproduce the WT1 protein. The WT1 protein is fragmented in the cancer cell to produce partial peptides consisting of 8 to 12 amino acids. A WT1 peptide is one of the peptide fragment which has been bound with the MHC class molecule in a cancer cell, moved to the surface of the cancer cell, and presented as an antigen bound to the MHC class 1 molecule on the cancer cell surface. The WT1 peptide becomes a mark of the cancer cell. The amino acid sequence of the WT1 peptide conforms to the type of the MHC class 1 molecule of the cell. For example, in the case of a cell having HLA-A*0201-type MHC, a HLA-A*0201-type MHC restricted WT1 peptide such as Db126 peptide consisting of 9 amino acids is generated, and in the case of a cell having HLA-A*2402-type MHCa HLA-A*2402-type MHC restricted WT1 peptide such as Db235 peptide consisting of 9 amino acids is generated. In the case of a cell having other MHC, such as HLA-A26 type (WO 2005/095598), HLA-A*3303 type (WO 2007/097358), or HLA-A*1101 type (WO 2008/081701), each MHC restricted WT1 peptide is generated. When a WT1 peptide, or a modified WT1 peptide in which a part of amino acids of the WT1 peptide is substituted or modified is administered to a living body as an antigen (herein, a WT1 peptide or a modified WT1 peptide which has been administered as an antigen is referred to as “WT1 antigen peptide”), the WT1 antigen peptide is bound to the MHC Class I molecule on the surface of a dendritic cell which is an antigen presenting cell, or the WT1 antigen peptide is once taken into a dendritic cell, bound to the MHC class I molecule of the dendritic cell and then, is moved to the surface of the dendritic cell, thereby, is presented as an antigen bound to the MHC class I molecule on the surface of the dendritic cell. An activated dendritic cell having the WT1 antigen peptide/MHC class I molecule complex is moved to the regional lymph node, and activates a CD8-positive T lymphocyte which recognizes the WT1 antigen peptide/MHC class I molecule complex to differentiate and proliferate the cell into a cytotoxic T cell (CTL). CTL recognizes tumor cells having the complex of a WT1 peptide (derived from the endogenous WT1 protein) of the same amino acid sequence as the WT1 antigen peptide and the MHC class I molecule, or a tumor cell having a complex of a WT1 peptide (derived from the endogenous WT1 protein) of an amino acid sequence having cross immunoreactivity with the WT1 antigen peptide and the MHC class I molecule, and attacks the recognized tumor cells. Therefore, the aforementioned various MHC restricted WT1 peptides such as Db126 peptide and Db235 peptide, and modified WT1 peptides in which a part of amino acids of them are substituted or modified are useful as cancer vaccines (Non-Patent Document 1).
It is also known that an adjuvant is utilized in order to enhance the action as cancer vaccine of the WT1 peptide and/or the modified WT1 peptide. As the adjuvant for the WT1 peptide and/or the modified WT1 peptide, for example, mineral gels such as aluminum hydroxide; surfactants such as lysolecithin, and pluronic polyol; polyanions; peptides; or oil emulsions (Patent Document 1), and GM-CSF, BCG-CWS and Montanide ISA51 (Non-Patent Document 1) are known. In addition to them, a variety of vaccine adjuvants including cyclic dinucleotide analogs (Patent Document 3 and Patent Document 4) such as 1H-imidazo[4,5-c]quinoline-4-amine, imiquimod (Patent Document 2), and cyclic di-GMP (c-di-GMP), and TLR2, 3, 7, 8 and 9 ligands (Patent Document 5) have been known. In addition, it is also known that immunity induced by transdermal administration of imiquimod-containing peptide is further enhanced by adding Peptide-25 (Non-Patent Document 2).
In general, vaccines are administered by subcutaneous or intradermal injection. In addition to those routes, immunity induction by a variety of administration routes, for example, transdermal administration (Patent Document 5 and Non-Patent Document 2), and mucosal administration such as, buccal administration, nasal administration, and sublingual administration (Non-Patent Document 3, Patent Document 6, and Patent Document 7) have been tried.
It is well-known that an adjuvant is used to enhance efficacy of a vaccine. Suitable adjuvants generally vary depending on, for example, the kind of the antigen, the administration route, and the immune response which is desired to be induced (i.e. cellular immunity or humoral immunity). Further, in addition to the adjuvant, there are a variety of substances which promote the induction of the immunity. Then, an object of the present invention is to provide a composition for use as a cancer vaccine with higher efficacy and is convenient for use.
A microorganism or a virus itself, or a part of them is contained in a widely used vaccine and the vaccine is administered to induce immune response. Usually, since invasion of the microorganism or virus is inhibited by the skin due to the size thereof, it is necessary that the vaccine is invasively administered into the body. Therefore, vaccines are usually administered by injection. However, the injection has some problems including pain, fear, injection scar, and subsequent scarring cicatrization. People other than health care workers are not permitted to perform the injection. Intradermal injection which can introduce higher immune response is a difficult administration technique. There is a risk of accidental infection of the health care workers due to needlestick injury. Patients are needed to visit the hospital repeatedly when administration is performed repetitively. Medical wastes which necessitate special disposition such as injection needles are generated. In view of the above issues, injection is not necessarily the optimal administration route.
A WT1 peptide and/or a modified WT1 peptide can activate CTL (cytotoxic T cell) via a MHC class I molecule, that is, the peptide can induce cellular immunity. The WT1 peptide and/or the modified WT1 peptide are a molecule having a molecular weight of about 700 to about 1600 and consisting of 8 to 12 amino acids, and are significantly smaller than microorganisms or virus itself although they are not considered as a small-molecule substance. It may be possible that they are administered by a route other than injection. However, a preparation for the administration of the peptide vaccine in a rout other than injection has not been developed yet. The reason includes many things, for example: a suitable substance that can promote to induce the cellular immunity has been unknown; it has also been unknown whether or not an antigen can be delivered to a tissue suitable for the induction of the cellular immunity. Inter alia, a substance that can promote to induce the cellular immunity when it is used with the antigen when administered in a route other than injection has been unknown.
The inventors have found that the cellular immunity can effectively be induced by transdermal administration of the peptide vaccine. The inventors have also found some substances suitable for enhancing cellular immunity induced by the transdermal administration of a WT1 peptide and/or a modified WT1 peptide. The substances may include TLR ligands such as a TLR1/2 ligand, a TLR2 and Dectin1 ligand, a TLR2/6 ligand, a TLR3 ligand, a TLR4 ligand, a TLR5 ligand, a TLR7 and/or TLR8 ligand, and a TLR9 ligand; cyclic dinucleotides such as cyclic di-GMP and cyclic di-AMP; immunomodulatory small molecule drugs such as bestatin, pidotimod and levamisole hydrochloride; cyclooxygenase inhibitors such as etodolac and loxoprofen; prostaglandin receptor antagonists such as an EP2 receptor antagonist, an EP4 receptor antagonist, a DP receptor antagonist, and an IP receptor antagonist; prostaglandin receptor agonists such as an EP3 receptor agonist; TSLP production inhibitors such as berberine chloride and naringenin; adenylate cyclase inhibitors such as 2′,5′-dideoxyadenosine and niacin; omega-3 fatty acids such as eicosapentaenoic acid and docosahexaenoic acid; PPAR agonists such as a PPAR-α agonist, a PPAR-δ agonist, and a PPAR-γ agonist; dopamine receptor antagonists such as a D1 receptor antagonist, and a D5 receptor antagonist; dopamine receptor agonists such as a D2 receptor agonist, a D3 receptor agonist, and a D4 receptor agonist; histamine receptor antagonists such as a H1 receptor antagonist, and a H2 receptor antagonist; histamine receptor agonists such as a H1 receptor agonist, a H3 receptor agonist, and a H4 receptor agonist; serotonin receptor antagonists such as a 5-HT2 receptor antagonist, a 5-HT4 receptor antagonist, a 5-HT6 receptor antagonist, and a 5-HT7 receptor antagonist; serotonin receptor agonists such as a 5-HT1 receptor agonist, and a 5-HT2 receptor agonist; vasopressin receptor antagonists such as a V2 receptor antagonist; vasopressin receptor agonists such as a V1 receptor agonist; muscarine receptor antagonists such as a M1 receptor antagonist, a M3 receptor antagonist, and a M5 receptor antagonist; muscarine receptor agonists such as a M1 receptor agonist, a M2 receptor agonist, a M3 receptor agonist, a M4 receptor agonist, and a M5 receptor agonist; adrenalin receptor antagonists such as an al receptor antagonist, a β1 receptor antagonist, a β2 receptor antagonist, and a β3 receptor antagonist; adrenalin receptor agonists such as an α1 receptor agonist, and an α2 receptor agonist; angiotensin receptor agonists such as an AT2 receptor agonist; GABA receptor agonists such as a GABAB receptor agonist; thrombin receptor antagonists such as a PAR-1 receptor antagonist; thrombin receptor agonists such as a PAR-1 receptor agonist; opioid receptor agonists such as buprenorphine; leukotriene receptor antagonists such as a CysLT1 receptor antagonist, and a CysLT2 receptor antagonist; leukotriene receptor agonists such as a BLT receptor agonist; ADP receptor agonists such as adenosine diphosphate; melatonin receptor agonists such as melatonin; somatostatin receptor agonists such as octreotide; cannabinoid receptor agonists such as dronabinol; sphingosine-1 phosphate receptor agonists such as fingolimod; metabotropic glutamate receptor agonists such as an mGluR2 receptor agonist, an mGluR3 receptor agonist, an mGluR4 receptor agonist, an mGluR6 receptor agonist, an mGluR7 receptor agonist, and an mGluR8 receptor agonist; phospholipase A2 inhibitors such as glycyrrhizic acid; TGF-β production inhibitors such as pirfenidone; or Th2 cytokine inhibitors such as suplatast tosylate. Further, the inventors have found that a helper peptide such as Peptide-25 or hWT135 is also useful to promote the induction of the cellular immunity induced by transdermal administration of a WT1 peptide and/or a modified WT1 peptide, when it is used in place of or in addition to the above-discussed substances. That is, it is found that cellular immunity is remarkably enhanced by a combination of a TLR ligand and a helper peptide, a combination of a cyclic dinucleotide and a helper peptide, a combination of an immunomodulatory small molecule drug and a helper peptide, a combination of a cyclooxygenase inhibitor and a helper peptide, a combination of a prostaglandin receptor antagonist and a helper peptide, a combination of a prostaglandin receptor agonist and a helper peptide, a combination of a TSLP production inhibitor and a helper peptide, a combination of an adenylate cyclase inhibitor and a helper peptide, a combination of an omega-3 fatty acid and a helper peptide, a combination of a PPAR agonist and a helper peptide, a combination of a dopamine receptor antagonist and a helper peptide, a combination of a dopamine receptor agonist and a helper peptide, a combination of a histamine receptor agonist and a helper peptide, a combination of a histamine receptor antagonist and a helper peptide, a combination of a serotonin receptor agonist and a helper peptide, a combination of a serotonin receptor antagonist and a helper peptide, a combination of a vasopressin receptor antagonist and a helper peptide, a combination of a vasopressin receptor agonist and a helper peptide, a combination of a muscarine receptor antagonist and a helper peptide, a combination of a muscarine receptor agonist and a helper peptide, a combination of an adrenalin receptor antagonist and a helper peptide, a combination of an adrenalin receptor agonist and a helper peptide, a combination of an angiotensin receptor agonist and a helper peptide, a combination of a GABA receptor agonist and a helper peptide, a combination of a thrombin receptor antagonist and a helper peptide, a combination of a thrombin receptor agonist and a helper peptide, a combination of an opioid receptor agonist and a helper peptide, a combination of an ADP receptor agonist and a helper peptide, a combination of a leukotriene receptor antagonist and a helper peptide, a combination of a leukotriene receptor agonist and a helper peptide, a combination of a melatonin receptor agonist and a helper peptide, a combination of a somatostatin receptor agonist and a helper peptide, a combination of a cannabinoid receptor agonist and a helper peptide, a combination of a sphingosine-1 phosphate receptor agonist and a helper peptide, a combination of a metabotropic glutamate receptor agonist and a helper peptide, a combination of a phospholipase A2 inhibitor and a helper peptide, a combination of a TGF-β production inhibitor and a helper peptide, or a combination of a Th2 cytokine inhibitor and a helper peptide. In a particularly preferred aspect, cellular immunity is remarkably enhanced by a combination of a TLR ligand and a helper peptide, or a combination of a cyclic dinucleotide and a helper peptide. Further, it has been found that the high cellular immunity inducing effect is obtained by an administration under a mildly irritating condition. Specifically, the high cellular immunity inducing effect is obtained by selecting the mildly irritating state where transepidermal water loss (TEWL) (g/h·m2), which is an index of the state of the skin of a model animal for skin irritation evaluation, before the administration of the cancer vaccine composition for transdermal administration is 50 or less, and administering transdermally the cancer vaccine composition for transdermal administration. Alternatively, a higher cellular immunity inducing effect can be obtained when the cancer vaccine composition for transdermal administration has such a mildly irritating property that the cutaneous TSLP level (pg/mg protein) of the model animal for skin irritation evaluation at completion of the administration becomes 10000 or less.
Therefore, the present invention, in a first aspect, provides the aspects listed below:
(1) A cancer vaccine composition for transdermal administration for use in the induction of cellular immunity, comprising:
(i) a WT1 peptide and/or a modified WT1 peptide; and
(ii) a cellular immunity induction promoter selected from a TLR ligand, a cyclic dinucleotide, a helper peptide, an immunomodulatory small molecule drug, a cyclooxygenase inhibitor, a prostaglandin receptor antagonist, a prostaglandin receptor agonist, a TSLP production inhibitor, an adenylate cyclase inhibitor, an omega-3 fatty acid, a PPAR agonist, a dopamine receptor antagonist, a dopamine receptor agonist, a histamine receptor agonist, a histamine receptor antagonist, a serotonin receptor agonist, a serotonin receptor antagonist, a vasopressin receptor antagonist, a vasopressin receptor agonist, a muscarine receptor antagonist, a muscarine receptor agonist, an adrenalin receptor antagonist, an adrenalin receptor agonist, an angiotensin receptor agonist, a GABA receptor agonist, a thrombin receptor antagonist, a thrombin receptor agonist, an opioid receptor agonist, an ADP receptor agonist, a leukotriene receptor antagonist, a leukotriene receptor agonist, a melatonin receptor agonist, a somatostatin receptor agonist, a cannabinoid receptor agonist, a sphingosine-1 phosphate receptor agonist, a metabotropic glutamate receptor agonist, a phospholipase A2 inhibitor, a TGF-β production inhibitor, a Th2 cytokine inhibitor, and a combination of two or more of them;
(2) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a TLR ligand;
(3) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a cyclic dinucleotide;
(4) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is an immunomodulatory small molecule drug;
(5) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a cyclooxygenase inhibitor;
(6) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a prostaglandin receptor antagonist and wherein the prostaglandin receptor antagonist is an EP2 receptor antagonist, an EP4 receptor antagonist, a DP receptor antagonist, or an IP receptor antagonist;
(7) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a prostaglandin receptor agonist and wherein the prostaglandin receptor agonist is an EP3 receptor agonist;
(8) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a TSLP production inhibitor;
(9) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is an adenylate cyclase inhibitor;
(10) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is an omega-3 fatty acid;
(11) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a PPAR agonist and wherein the PPAR agonist is a PPAR-α agonist, a PPAR-δ agonist, or a PPAR-γ agonist;
(12) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a dopamine receptor antagonist and wherein the dopamine receptor antagonist is a D1 receptor antagonist, or a D5 receptor antagonist;
(13) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a dopamine receptor agonist and wherein the dopamine receptor agonist is a D2 receptor agonist, a D3 receptor agonist, or a D4 receptor agonist;
(14) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a histamine receptor antagonist and wherein the histamine receptor antagonist is a H1 receptor antagonist, or a H2 receptor antagonist;
(15) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a histamine receptor agonist and wherein the histamine receptor agonist is a H1 receptor agonist, a H3 receptor agonist, or a H4 receptor agonist;
(16) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a serotonin receptor antagonist and wherein the serotonin receptor antagonist is a 5-HT2 receptor antagonist, a 5-HT4 receptor antagonist, a 5-HT6 receptor antagonist, or a 5-HT7 receptor antagonist;
(17) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a serotonin receptor agonist and wherein the serotonin receptor agonist is a 5-HT1 receptor agonist, or a 5-HT2 receptor agonist;
(18) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a vasopressin receptor antagonist and wherein the vasopressin receptor antagonist is a V2 receptor antagonist;
(19) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a vasopressin receptor agonist and wherein the vasopressin receptor agonist is a V1 receptor agonist;
(20) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a muscarine receptor antagonist and wherein the muscarine receptor antagonist is a M1 receptor antagonist, a M3 receptor antagonist, or a M5 receptor antagonist;
(21) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a muscarine receptor agonist and wherein the muscarine receptor agonist is a M1 receptor agonist, a M2 receptor agonist, a M3 receptor agonist, a M4 receptor agonist, or a M5 receptor agonist;
(22) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is an adrenalin receptor antagonist and wherein the adrenalin receptor antagonist is an al receptor antagonist, a β1 receptor antagonist, a β2 receptor antagonist, or a β3 receptor antagonist;
(23) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is an adrenalin receptor agonist and wherein the adrenalin receptor agonist is an al receptor agonist, or an α2 receptor agonist;
(24) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is an angiotensin receptor agonist and wherein the angiotensin receptor agonist is an AT2 receptor agonist;
(25) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a GABA receptor agonist and wherein the GABA receptor agonist is a GABAB receptor agonist;
(26) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a thrombin receptor antagonist and wherein the thrombin receptor antagonist is a PAR-1 receptor antagonist;
(27) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a thrombin receptor agonist and wherein the thrombin receptor agonist is a PAR-1 receptor agonist;
(28) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is an opioid receptor agonist;
(29) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a leukotriene receptor antagonist and wherein the leukotriene receptor antagonist is a CysLT1 receptor antagonist, or a CysLT2 receptor antagonist;
(30) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a leukotriene receptor agonist and wherein the leukotriene receptor agonist is a BLT receptor agonist;
(31) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a melatonin receptor agonist;
(32) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a somatostatin receptor agonist;
(33) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a cannabinoid receptor agonist;
(34) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a sphingosine-1 phosphate receptor agonist;
(35) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a metabotropic glutamate receptor agonist and wherein the metabotropic glutamate receptor agonist is an mGluR2 receptor agonist, an mGluR3 receptor agonist, an mGluR4 receptor agonist, an mGluR6 receptor agonist, an mGluR7 receptor agonist, or an mGluR8 receptor agonist;
(36) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is an ADP receptor agonist;
(37) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a phospholipase A2 inhibitor;
(38) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a TGF-β production inhibitor;
(39) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a Th2 cytokine inhibitor;
(40) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a helper peptide;
(41) The cancer vaccine composition for transdermal administration according to (1), wherein the cellular immunity induction promoter is a combination of a helper peptide and one or more substances selected from the group consisting of a TLR ligand, a cyclic dinucleotide, an immunomodulatory small molecule drug, a cyclooxygenase inhibitor, a prostaglandin receptor antagonist, a prostaglandin receptor agonist, a TSLP production inhibitor, an adenylate cyclase inhibitor, an omega-3 fatty acid, a PPAR agonist, a dopamine receptor antagonist, a dopamine receptor agonist, a histamine receptor agonist, a histamine receptor antagonist, a serotonin receptor agonist, a serotonin receptor antagonist, a vasopressin receptor antagonist, a vasopressin receptor agonist, a muscarine receptor antagonist, a muscarine receptor agonist, an adrenalin receptor antagonist, an adrenalin receptor agonist, an angiotensin receptor agonist, a GABA receptor agonist, a thrombin receptor antagonist, a thrombin receptor agonist, an opioid receptor agonist, an ADP receptor agonist, a leukotriene receptor antagonist, a leukotriene receptor agonist, a melatonin receptor agonist, a somatostatin receptor agonist, a cannabinoid receptor agonist, a sphingosine-1 phosphate receptor agonist, a metabotropic glutamate receptor agonist, a phospholipase A2 inhibitor, a TGF-β production inhibitor, and a Th2 cytokine inhibitor;
(42) The cancer vaccine composition for transdermal administration according to any one of (1) to (41), which is administered under a mildly irritating condition;
(43) The cancer vaccine composition for transdermal administration according to (42), wherein the mildly irritating condition is a condition under which transepidermal water loss (TEWL) in a model animal for skin irritation evaluation before the administration of the composition is 50 g/h·m2 or less; and
(44) The cancer vaccine composition for transdermal administration according to (42) or (43), wherein the mildly irritating condition is a condition under which the cutaneous TSLP level in a model animal for skin irritation evaluation at completion of the administration of the composition is 10000 pg/mg protein or less.
In other aspect, the cancer vaccine composition of the present invention can be used for treating or preventing a cancer. Therefore, the present invention also provides the following embodiments:
(45) A method of treating or preventing a cancer in a subject, comprising transdermally administering to the subject a therapeutically effective amount of (i) a WT1 peptide and/or a modified WT1 peptide, and (ii) a cellular immunity induction promoter selected from a TLR ligand, a cyclic dinucleotide, a helper peptide, an immunomodulatory small molecule drug, a cyclooxygenase inhibitor, a prostaglandin receptor antagonist, a prostaglandin receptor agonist, a TSLP production inhibitor, an adenylate cyclase inhibitor, an omega-3 fatty acid, a PPAR agonist, a dopamine receptor antagonist, a dopamine receptor agonist, a histamine receptor agonist, a histamine receptor antagonist, a serotonin receptor agonist, a serotonin receptor antagonist, a vasopressin receptor antagonist, a vasopressin receptor agonist, a muscarine receptor antagonist, a muscarine receptor agonist, an adrenalin receptor antagonist, an adrenalin receptor agonist, an angiotensin receptor agonist, a GABA receptor agonist, a thrombin receptor antagonist, a thrombin receptor agonist, an opioid receptor agonist, an ADP receptor agonist, a leukotriene receptor antagonist, a leukotriene receptor agonist, a melatonin receptor agonist, a somatostatin receptor agonist, a cannabinoid receptor agonist, a sphingosine-1 phosphate receptor agonist, a metabotropic glutamate receptor agonist, a phospholipase A2 inhibitor, a TGF-β production inhibitor, a Th2 cytokine inhibitor, and a combination of two or more of them; and
(46) A method of treating or preventing a cancer in a subject, comprising administering to the subject a therapeutically effective amount of the cancer vaccine composition for transdermal administration according to any one of (1) to (44).
In other aspect, the present invention provides a TLR ligand, a cyclic dinucleotide, a helper peptide, an immunomodulatory small molecule drug, a cyclooxygenase inhibitor, a prostaglandin receptor antagonist, a prostaglandin receptor agonist, a TSLP production inhibitor, an adenylate cyclase inhibitor, an omega-3 fatty acid, a PPAR agonist, a dopamine receptor antagonist, a dopamine receptor agonist, a histamine receptor agonist, a histamine receptor antagonist, a serotonin receptor agonist, a serotonin receptor antagonist, a vasopressin receptor antagonist, a vasopressin receptor agonist, a muscarine receptor antagonist, a muscarine receptor agonist, an adrenalin receptor antagonist, an adrenalin receptor agonist, an angiotensin receptor agonist, a GABA receptor agonist, a thrombin receptor antagonist, a thrombin receptor agonist, an opioid receptor agonist, an ADP receptor agonist, a leukotriene receptor antagonist, a leukotriene receptor agonist, a melatonin receptor agonist, a somatostatin receptor agonist, a cannabinoid receptor agonist, a sphingosine-1 phosphate receptor agonist, a metabotropic glutamate receptor agonist, a phospholipase A2 inhibitor, a TGF-β production inhibitor, a Th2 cytokine inhibitor, or a combination of two or more of them for use as a cellular immunity induction promoter that can enhance the immune response induced by the transdermal administration of a WT1 peptide and/or a modified WT1 peptide. Therefore, the present invention also provides the following aspect:
(47) A TLR ligand, a cyclic dinucleotide, a helper peptide, an immunomodulatory small molecule drug, a cyclooxygenase inhibitor, a prostaglandin receptor antagonist, a prostaglandin receptor agonist, a TSLP production inhibitor, an adenylate cyclase inhibitor, an omega-3 fatty acid, a PPAR agonist, a dopamine receptor antagonist, a dopamine receptor agonist, a histamine receptor agonist, a histamine receptor antagonist, a serotonin receptor agonist, a serotonin receptor antagonist, a vasopressin receptor antagonist, a vasopressin receptor agonist, a muscarine receptor antagonist, a muscarine receptor agonist, an adrenalin receptor antagonist, an adrenalin receptor agonist, an angiotensin receptor agonist, a GABA receptor agonist, a thrombin receptor antagonist, a thrombin receptor agonist, an opioid receptor agonist, an ADP receptor agonist, a leukotriene receptor antagonist, a leukotriene receptor agonist, a melatonin receptor agonist, a somatostatin receptor agonist, a cannabinoid receptor agonist, a sphingosine-1 phosphate receptor agonist, a metabotropic glutamate receptor agonist, a phospholipase A2 inhibitor, a TGF-β production inhibitor, a Th2 cytokine inhibitor, or a combination of two or more of them, for use as a cellular immunity induction promoter that can enhance the immune response induced by the transdermal administration of a WT1 peptide and/or a modified WT1 peptide.
The present invention also provides the following embodiments:
(48) A method of inducing cellular immunity in a subject, which comprises transdermally administering to the subject (i) a WT1 peptide and/or modified WT1 peptide and (ii) a cellular immunity induction promoter selected from TLR ligand, cyclic dinucleotide, helper peptide, immunomodulatory small molecule drug, cyclooxygenase inhibitor, prostaglandin receptor antagonist, prostaglandin receptor agonist, TSLP production inhibitor, adenylate cyclase inhibitor, omega-3 fatty acid, PPAR agonist, dopamine receptor antagonist, dopamine receptor agonist, histamine receptor agonist, histamine receptor antagonist, serotonin receptor agonist, serotonin receptor antagonist, vasopressin receptor antagonist, vasopressin receptor agonist, muscarine receptor antagonist, muscarine receptor agonist, adrenalin receptor antagonist, adrenalin receptor agonist, angiotensin receptor agonist, GABA receptor agonist, thrombin receptor antagonist, thrombin receptor agonist, opioid receptor agonist, ADP receptor agonist, leukotriene receptor antagonist, leukotriene receptor agonist, melatonin receptor agonist, somatostatin receptor agonist, cannabinoid receptor agonist, sphingosine-1 phosphate receptor agonist, metabotropic glutamate receptor agonist, phospholipase A2 inhibitor, TGF-beta production inhibitor, Th2 cytokine inhibitor, and a combination of two or more of them;
(49) TLR ligand, cyclic dinucleotide, helper peptide, immunomodulatory small molecule drug, cyclooxygenase inhibitor, prostaglandin receptor antagonist, prostaglandin receptor agonist, TSLP production inhibitor, adenylate cyclase inhibitor, omega-3 fatty acid, PPAR agonist, dopamine receptor antagonist, dopamine receptor agonist, histamine receptor agonist, histamine receptor antagonist, serotonin receptor agonist, serotonin receptor antagonist, vasopressin receptor antagonist, vasopressin receptor agonist, muscarine receptor antagonist, muscarine receptor agonist, adrenalin receptor antagonist, adrenalin receptor agonist, angiotensin receptor agonist, GABA receptor agonist, thrombin receptor antagonist, thrombin receptor agonist, opioid receptor agonist, ADP receptor agonist, leukotriene receptor antagonist, leukotriene receptor agonist, melatonin receptor agonist, somatostatin receptor agonist, cannabinoid receptor agonist, sphingosine-1 phosphate receptor agonist, metabotropic glutamate receptor agonist, phospholipase A2 inhibitor, TGF-beta production inhibitor, Th2 cytokine inhibitor, or a combination of two or more of them, for use in promoting the induction of cellular immunity that is induced by transdermal administration of a WT1 peptide and/or modified WT1 peptide;
(50) A combination of (i) a WT1 peptide and/or modified WT1 peptide and (ii) a cellular immunity induction promoter selected from TLR ligand, cyclic dinucleotide, helper peptide, immunomodulatory small molecule drug, cyclooxygenase inhibitor, prostaglandin receptor antagonist, prostaglandin receptor agonist, TSLP production inhibitor, adenylate cyclase inhibitor, omega-3 fatty acid, PPAR agonist, dopamine receptor antagonist, dopamine receptor agonist, histamine receptor agonist, histamine receptor antagonist, serotonin receptor agonist, serotonin receptor antagonist, vasopressin receptor antagonist, vasopressin receptor agonist, muscarine receptor antagonist, muscarine receptor agonist, adrenalin receptor antagonist, adrenalin receptor agonist, angiotensin receptor agonist, GABA receptor agonist, thrombin receptor antagonist, thrombin receptor agonist, opioid receptor agonist, ADP receptor agonist, leukotriene receptor antagonist, leukotriene receptor agonist, melatonin receptor agonist, somatostatin receptor agonist, cannabinoid receptor agonist, sphingosine-1 phosphate receptor agonist, metabotropic glutamate receptor agonist, phospholipase A2 inhibitor, TGF-beta production inhibitor, Th2 cytokine inhibitor and a combination of two or more of them, for use in inducing cellular immunity;
(51) A combination of (i) a WT1 peptide and/or modified WT1 peptide and (ii) a cellular immunity induction promoter selected from TLR ligand, cyclic dinucleotide, helper peptide, immunomodulatory small molecule drug, cyclooxygenase inhibitor, prostaglandin receptor antagonist, prostaglandin receptor agonist, TSLP production inhibitor, adenylate cyclase inhibitor, omega-3 fatty acid, PPAR agonist, dopamine receptor antagonist, dopamine receptor agonist, histamine receptor agonist, histamine receptor antagonist, serotonin receptor agonist, serotonin receptor antagonist, vasopressin receptor antagonist, vasopressin receptor agonist, muscarine receptor antagonist, muscarine receptor agonist, adrenalin receptor antagonist, adrenalin receptor agonist, angiotensin receptor agonist, GABA receptor agonist, thrombin receptor antagonist, thrombin receptor agonist, opioid receptor agonist, ADP receptor agonist, leukotriene receptor antagonist, leukotriene receptor agonist, melatonin receptor agonist, somatostatin receptor agonist, cannabinoid receptor agonist, sphingosine-1 phosphate receptor agonist, metabotropic glutamate receptor agonist, phospholipase A2 inhibitor, TGF-beta production inhibitor, Th2 cytokine inhibitor and a combination of two or more of them, for use in the treatment or prevention of a cancer; and
(52) Use of (i) a WT1 peptide and/or modified WT1 peptide and (ii) a cellular immunity induction promoter selected from TLR ligand, cyclic dinucleotide, helper peptide, immunomodulatory small molecule drug, cyclooxygenase inhibitor, prostaglandin receptor antagonist, prostaglandin receptor agonist, TSLP production inhibitor, adenylate cyclase inhibitor, omega-3 fatty acid, PPAR agonist, dopamine receptor antagonist, dopamine receptor agonist, histamine receptor agonist, histamine receptor antagonist, serotonin receptor agonist, serotonin receptor antagonist, vasopressin receptor antagonist, vasopressin receptor agonist, muscarine receptor antagonist, muscarine receptor agonist, adrenalin receptor antagonist, adrenalin receptor agonist, angiotensin receptor agonist, GABA receptor agonist, thrombin receptor antagonist, thrombin receptor agonist, opioid receptor agonist, ADP receptor agonist, leukotriene receptor antagonist, leukotriene receptor agonist, melatonin receptor agonist, somatostatin receptor agonist, cannabinoid receptor agonist, sphingosine-1 phosphate receptor agonist, metabotropic glutamate receptor agonist, phospholipase A2 inhibitor, TGF-beta production inhibitor, Th2 cytokine inhibitor and a combination of two or more of them, for the manufacture of a cancer vaccine composition for transdermal administration for the induction of cellular immunity.
Since the cancer vaccine composition of the present invention can be transdermally administered, it has the following advantages: excellent compliance, for example, non-invasive administration, no pain, and release from fear of injection; patients can administer the cancer vaccine composition by himself/herself since the administration is simple; a risk of accidental infection due to needlestick injury by health care workers can be avoided; in the case of repetitive administration, the ambulatory frequency can be reduced, and this can contribute to the improvement in quality of life of the patient; and medical wastes which necessitate special disposition such as an injection needle are not generated. In addition, if the cancer vaccine composition is in a form of a patch preparation such as a cataplasm preparation or a tape preparation, a predetermined dose can be surely administered, the drug releasing rate can be arbitrarily controlled, and the cancer vaccine composition is not adhered to other site upon administration. Further, since the patch preparation can be easily detached, in the case where a side effect is generated, the patient himself/herself can instantaneously stop the administration by removing the patch from the application site. Further, there is also an advantage that efficacy of the cancer vaccine composition of the present invention is remarkably improved, as compared with administration of the WT1 peptide and/or the modified WT1 peptide alone. Further, the cancer vaccine composition of the present invention also has an advantage that transdermal administration of the composition induces stronger cellular immunity as compared with injection administration.
First, terms used in the present specification will be defined so that the present invention can be more easily understood. Terms having no definition have the meaning which is normally understood by a person skilled in the art in the fields of, particularly, medicine, pharmacy, immunology, cell biology, biochemistry, polymer chemistry and the like, unless the context requires otherwise.
As used herein, the term “WT1 peptide” means a partial peptide consisting of about 8 to about 15, preferably about 8 to about 12 amino acids. WT1 peptide is a peptide obtained by fragmenting the WT1 protein which is a product of cancer gene WT1 (Wilm's tumor), and includes Db126 peptide, Db235 peptide and the like. In addition, a partial peptide of WT1 product disclosed in WO 2000/06602, a WT1-derived HLA-A26 binding cancer antigen peptide described in WO 2005/095598, a HLA-A*3303-restricted WT1 peptide described in WO 2007/097358, and a HLA-A*1101-restricted WT1 peptide described in WO 2008/081701 are also included in the “WT1 peptide” of the present invention.
The term “Db126 peptide” means a WT1 peptide consisting of a sequence Arg Met Phe Pro Asn Ala Pro Tyr Leu (SEQ ID No.: 1). The term “Db235 peptide” means a WT1 peptide consisting of a sequence Cys Met Thr Trp Asn Gln Met Asn Leu (SEQ ID No.: 2) (Patent Document 1).
As used herein, the term “modified WT1 peptide” means a peptide in which all or a part of amino acids of a WT1 peptide are modified by substitution, modification or the like.
The modified WT1 peptide includes, for example,
(a) a peptide consisting of an amino acid sequence in which one to several, for example, 1, 2, 3, 4 or 5 amino acids are substituted, deleted or added in an amino acid sequence of a WT1 peptide; and
(b) a peptide consisting of an amino acid sequence in which all or apart of amino acids, for example, one or more, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12 amino acids are modified in an amino acid sequence of a WT1 peptide.
Examples of “modification” of an amino acid which can be possessed by a modified WT1 peptide include, but not limited to, aliphatic chain addition modification such as alkylation such as acetylation and methylation, glycosylation, hydroxylation, carboxylation, aldehydization, phosphorylation, sulfonylation, formylation, myristoylation, palmitoylation and stearoylation, octanoylation, esterification, amidation, deamidation, disulfide bond formation modification such as cystine modification, glutathione modification and thioglycolic acid modification, glycation, ubiquitination, succinimide formation, glutamylation, prenylation and the like. The modified WT1 peptide may contain a combination of substitution, deletion or addition of one or more amino acids, and modification of one or more amino acids.
As a specific example, Db235m peptide in which a part of Db235 peptide is modified is a modified WT1 peptide consisting of a sequence Cys Tyr Thr Trp Asn Gln Met Asn Leu (SEQ ID No.: 3) (WO2002/079253), and is included in the modified WT1 peptide in the present invention. A WT1 substitution type peptide described in WO 2004/026897, a WT1235-243 peptide derivative disclosed in WO 2007/063903 A1, and a HLA-A24 restricted cancer antigen peptide disclosed in WO 2003/106682 are also included in the modified WT1 peptide in the present invention. Specific examples of the HLA-A24 restricted modified WT1 peptide described in WO 2003/106682 include a RYF peptide of a sequence Arg Tyr Phe Pro Asn Ala Pro Tyr Leu (SEQ ID No.: 4), and an AYL peptide of a sequence Ala Tyr Leu Pro Ala Val Pro Ser Leu (SEQ ID No.: 5).
The WT1 peptide and/or the modified WT1 peptide can be in the free form, or any pharmacologically acceptable salt form, for example, a form of acid salts (acetic acid salt, TFA salt, hydrochloric acid salt, sulfuric acid salt, phosphoric acid salt, lactic acid salt, tartaric acid salt, maleic acid salt, fumaric acid salt, oxalic acid salt, hydrobromic acid salt, succinic acid salt, nitric acid salt, malic acid salt, citric acid salt, oleic acid salt, palmitic acid salt, propionic acid salt, formic acid salt, benzoic acid salt, picric acid salt, benzenesulfonic acid salt, dodecylsulfuric acid salt, methanesulfonic acid salt, p-toluenesulfonic acid salt, glutaric acid salt, a variety of amino acid salts etc.), metal salts (alkali metal salts (e.g. sodium salt, potassium salt), alkaline earth metal salts (e.g. calcium salt, magnesium salt), aluminum salt etc.), or amine salts (triethylamine salt, benzylamine salt, diethanolamine salt, t-butylamine salt, dicyclohexylamine salt, arginine salt, dimethylammonium salt, ammonium salt etc.). A preferable pharmacologically acceptable salt is an acetic acid salt or a TFA salt. The WT1 peptide and/or the modified WT1 peptide which has been synthesized or produced, isolated and purified by a well-known method can be used.
As used herein, the term “cellular immunity induction promoter” means any substance which can enhance the cellular immune response induced by an antigen which is administered together with the substance, as compared with the immune response induced by the antigen without the substance. The cellular immunity induction promoter may include substances specified in the present specification, though it is not limited by the action mechanism by which induction of the cellular immunity is promoted.
As used herein, the term “TLR ligand” means a ligand of a Toll-like receptor (TLR), and includes, for example, ligands of TLR1 to 9. Examples of the TLR ligand include a TLR1/2 ligand, a TLR2/6 ligand, a TLR2 and Dectin1 ligand, a TLR3 ligand, a TLR4 ligand, a TLR5 ligand, a TLR7 and/or TLR8 ligand, a TLR9 ligand and the like. In a preferable aspect of the present invention, the TLR ligand is a TLR1/2 ligand, a TLR2 and Dectin1 ligand, a TLR3 ligand, a TLR4 ligand, a TLR7 and/or TLR8 ligand, and/or a TLR9 ligand.
As used herein, the term “TLR1/2 ligand” means a ligand of a heterodimer of a Toll-like receptor (TLR) 1 and a Toll-like receptor (TLR) 2, and includes, for example, a triacylated lipoprotein derived from a cell wall of a bacterium and a salt thereof, and these may be an extract, a product or a synthetic product, and are not limited to them.
In a preferable aspect of the present invention, the TLR1/2 ligand is Pam3CSK4. Pam3CSK4 has the formula:
As used herein, the term “TLR2 and Dectin1 ligand” means a ligand of a Toll-like receptor (TLR) 2 and a β1,3-glucan receptor (Dectin1), and includes, for example, a β1,3-glucan derived from a cell wall of a fungus and a salt thereof, and these may be an extract, a product or a synthetic product, and are not limited to them. In a preferable aspect of the present invention, the TLR2 and Dectin1 ligand is Zymosan derived from a yeast cell wall.
As used herein, the term “TLR3 ligand” means a ligand of a Toll-like receptor (TLR) 3, and includes, for example, a double-stranded RNA (dsRNA) derived from a virus and a salt thereof, and these may be an extract, a product or a synthetic product, and are not limited to them. In a preferable aspect of the present invention, the TLR3 ligand is polyinosinic-polycytidylic acid (Poly(I:C)) which is a synthetic product and/or a salt thereof.
As used herein, the term “TLR4 ligand” means a ligand of a Toll-like receptor (TLR) 4, and includes, for example, a lipopolysaccharide (LPS) derived from a bacterium or a plant, particularly, a lipid A derivative, for example, monophosphoryl lipid A, a 3 deacylated monophosphoryl lipid A (3D-MPL), OM174, OM 294 DP or OM 197 MP-Ac DP and the like, alkyl glucosaminide phosphate (AGP), for example, AGP disclosed in WO 98/50399 or U.S. Pat. No. 6,303,347, or a salt of AGP as disclosed in U.S. Pat. No. 6,764,840, and a lipopolysaccharide derived from a Pantoea bacterium, a glucopyranosyl lipid, and sodium hyaluronate, but is not limited to them.
In a preferable aspect of the present invention, as the TLR4 ligand, lipopolysaccharides derived from genus Acetobacter (e.g. Acetobacter aceti, Acetobacter xylinum, Acetobacter orientalis etc.), genus Zymomonas (e.g. Zymomonas mobilis etc.), genus Xanthomonas (e.g. Xanthomonas campestris etc.), genus Enterobacter (e.g. Enterobacter cloacae etc.), and genus Pantoea (e.g. Pantoea agglomerans etc.) are preferable. Extracts derived from these lipopolysaccharides or purified lipopolysaccharides can be used as they are. In addition, for example, lipopolysaccharides (IP-PA1) derived from Pantoea agglomerans can be purchased from Funakoshi Corporation. In addition, in a preferable aspect of the present invention, the TLR4 ligand is a lipopolysaccharide derived from a Pantoea bacterium, glucopyranosyl lipid, and/or sodium hyaluronate.
As used herein, the term “TLR7 and/or TLR8 ligand” means a ligand of a Toll-like receptor (TLR) 7 and/or TLR8, and includes, for example, a single-stranded RNA, imiquimod, resiquimod (R848), TLR7-II and other compounds, for example, loxoribine and bropirimine, but is not limited to them.
In a preferable aspect of the present invention, the TLR7 and/or TLR8 ligand is imiquimod. Imiquimod is 1-(2-methylpropyl)-1H-imidazo[4,5-c]quinoline-4-amine of the formula:
and, for example, the characteristics and a production process thereof are described in JP 7-505883 A (Patent Document 2).
In other preferable aspect, the TLR7 and/or TLR8 ligand is resiquimod. Resiquimod is 4-amino-2-(ethoxymethyl)-α,α-dimethyl-1H-imidazo[4,5-c]quinoline-1-ethanol of the formula:
In other preferable aspect, the TLR7 and/or TLR8 ligand is TLR7-II. TLR7-II is represented by the formula:
In other preferable aspect, the TLR7 and/or TLR8 ligand is bropirimine. Bropirimine is represented by the formula:
As used herein, the term “TLR9 ligand” means a ligand of a Toll-like receptor (TLR) 9, and includes, for example, ODN1826 and the like. The TLR9 ligand used in the present invention may be an extract, a product or a synthetic product, and is not limited to them. In a preferable aspect of the present invention, the TLR9 ligand is ODN1826.
ODN1826 is an oligodeoxynucleotide consisting of the following sequence (SEQ ID No.: 6).
5′-tccatgacgttcctgacgtt-3′
As used herein, the term “TLR2/6 ligand” means a ligand of a heterodimer of Toll-like receptor (TLR) 2 and a Toll-like receptor (TLR) 6, and includes, for example, a diacylated lipoprotein derived from a cell wall of mycoplasma and a salt thereof, and these may be an extract, a product or a synthetic product, and are not limited to them. In a preferable aspect of the present invention, the TLR2/6 ligand is Pam2CSK4, MALP-2 and/or FSL-1.
Pam2CSK4 is represented by the following formula.
FSL-1 is represented by the following formula.
As used herein, the term “TLR5 ligand” means a ligand of a Toll-like receptor (TLR) 5, and includes, for example, flagellin and the like. The TLR5 ligand used in the present invention may be an extract, a product or a synthetic product, and is not limited to them. In a preferable aspect of the present invention, the TLR5 ligand is flagellin.
The Toll-like receptor (TLR) is a family of type I transmembrane proteins which initiates congenital immune response in which a specific cytokine, a specific chemokine and a growth factor participate, by in vivo activation thereof. All TLRs can activate a certain intracellular signal transmission molecule, for example, a nuclearity factor κB (NF-κB) and a mitogen-activated protein kinase (MAP kinase) or the like, while a specific population of a cytokine and a chemokine which are released seems to be inherent to each TLR. TLR3, 7, 8 and 9 include a subfamily of TLR which is present in an endosome fraction or a lysosome fraction of an immune cell (e.g. dendritic cell and monocyte). Specifically, TLR3 is expressed by a wide range of cells such as a dendritic cell and a fibroblast, TLR7 is expressed by a plasma cell-like dendritic cell, and is expressed by a monocyte to a lesser extent, TLR8 is expressed by a monocyte as well as a monocyte-derived dendritic cell and a myeloid dendritic cell, and TLR9 is expressed by a plasma cell-like dendritic cell. This subfamily mediates recognition of a microorganism nucleic acid (single-stranded RNA, double-stranded RNA, single-stranded DNA etc.). Agonists of TLR3, TLR7 and/or TLR8, and TLR9 stimulate production of a variety of inflammatory cytokines (including, for example, interleukin-6, interleukin-12, TNF-α, and interferon-γ). Such agonists also promote increase in expression of a costimulatory molecule (e.g. CD40, CD80, and CD86), a major histocompatibility complex molecule, and a chemokine receptor. Type I interferons (IFNα and IFNβ) are produced by a cell upon activation with TLR7 and/or TLR8 agonists.
As used herein, the term “cyclic dinucleotide” means a molecule in which two OH groups of a sugar part of two nucleotides produce an ester for each same phosphoric acid molecule, and thereby nucleotides are cyclized, and an analog thereof, and includes, for example, cyclic di-AMP(c-di-AMP), cyclic di-GMP (c-di-GMP), c-dGpGp, c-dGpdGp, c-GpAp, c-GpCp, c-GpUp and the like, but is not limited to them. The cyclic dinucleotide activates a dendritic cell or a T cell. Further examples of the cyclic dinucleotide, use of them as an adjuvant, and a process for producing them are described in JP 2007-529531 A (Patent Document 3). In a preferable aspect of the present invention, the cyclic dinucleotide is cyclic di-GMP and/or cyclic di-AMP. The cyclic di-GMP has the formula:
and a process for synthesizing it is described in Kawai et al., Nucleic Acids Research Suppl. 3: 103-4.
As used herein, the term “helper peptide” means any peptide which activates a helper T cell, and includes, for example, tubercle bacillus-derived helper peptide, measles virus-derived helper peptide, hepatitis B virus-derived helper peptide, hepatitis C virus-derived helper peptide, Chlamydia trachomatis-derived helper peptide, Plasmodium falciparum sporozoite-derived helper peptide, keyhole limpet haemocyanin-derived helper peptide, tetanus toxin-derived helper peptide, pertussis toxin-derived helper peptide, diphtheria toxin-derived helper peptide, cancer cell-derived helper peptide (e.g. WT1—332-347 helper peptide (described in Japanese Patent No. 4621142 “WT1-derived HLA-DR binding Antigen Peptide”)), hWT135 helper peptide, hWT186 helper peptide, hWT1294 helper peptide (above three kinds are described in WO 2010/123065 “Cancer Antigen Helper Peptide”), IMA-MMP-001 helper peptide, CEA-006 helper peptide, MMP-001 helper peptide, TGFBI-004 helper peptide, HER-2/neu (aa776-790) helper peptide, AE36 helper peptide, AE37 helper peptide, MET-005 helper peptide, BIR-002 helper peptide, and universal helper analog (e.g. PADRE). In a preferable aspect of the present invention, the helper peptide consists of 10 to 20 amino acids, preferably 12 to 19 amino acids, more preferably 13 to 18 amino acids. In a preferable aspect of the present invention, the helper peptide is Peptide-25, hWT135, PADRE, or WT1—332-347. Peptide-25 is a peptide of 15 amino acids consisting of a sequence Phe Gln Asp Ala Tyr Asn Ala Ala Gly Gly His Asn Ala Val Phe (SEQ ID No.: 7), corresponding to amino acid residues 240 to 254 of Ag85B which is one of main proteins secreted by human tubercle bacillus (Mycobacterium tuberculosis). Further, hWT135 is a peptide of 18 amino acids consisting of a sequence Trp Ala Pro Val Leu Asp Phe Ala Pro Pro Gly Ala Ser Ala Tyr Gly Ser Leu (shown as SEQ ID No.: 8 in the present application), described in WO 2010/123065 “Cancer Antigen Helper Peptide”. PADRE is a peptide of 13 amino acids consisting of a sequence D-Ala Lys cyclohexyl-Ala Val Ala Ala Trp Thr Leu Lys Ala Ala D-Ala (shown as SEQ ID No.: 9 in the present application). WT1—332-347 is a peptide of 16 amino acids consisting of a sequence Lys Arg Tyr Phe Lys Leu Ser His Leu Gln Met His Ser Arg Lys His (shown as SEQ ID No.: 10 in the present application), described in Japanese Patent No. 4621142 “WT1-derived HLA-DR binding Antigen Peptide”.
In addition, in the present invention, in place of the aforementioned helper peptides, or in combination therewith, peptides in which all or a part of amino acids of the helper peptides are modified by substitution, modification, or the like (hereinafter, referred to as “modified helper peptide”) can also be used.
The modified helper peptides include, for example,
(a) a peptide consisting of an amino acid sequence in which one to several, for example, 1, 2, 3, 4 or 5 amino acids are substituted, deleted or added, in an amino acid sequence of the original helper peptide; and
(b) a peptide consisting of an amino acid sequence in which all or a part of amino acids, for example, one or more, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, or 18 amino acids are modified, in an amino acid sequence of the original helper peptide.
One example of the modified helper peptide is Peptide-25B. Peptide-25B is one example of modified Peptide-25, in which a part of amino acids of Peptide-25 are modified in order to enhance the immunostimulation effect, and is a peptide of 15 amino acids consisting of a sequence Phe Gln Asp Ala Tyr Asn Ala Val His Ala Ala His Ala Val Phe (SEQ ID No. 11).
Examples of the “modification” of an amino acid which can be possessed by the modified helper peptide include, but are not limited to, aliphatic chain addition modification such as acetylation, alkylation such as methylation, glycosylation, hydroxylation, carboxylation, aldehydization, phosphorylation, sulfonylation, formylation, addition of fatty acid such as myristoylation, palmitoylation and stearoylation, octanoylation, esterification, amidation, deamidation, disulfide bond formation modification such as cystine modification, glutathione modification and thioglycolic acid modification, glycation, ubiquitination, succinimide formation glutamylation, prenylation and the like. In addition, the modified helper peptide may contain a combination of substitution, deletion or addition of one or more amino acids, and modification of one or more amino acids.
As used herein, the term “cyclooxygenase inhibitor” means a substance which inhibits the function of cyclooxygenase (COX). This is also referred to as “COX inhibitor” hereinafter. As COX inhibitors, there are a COX inhibitor which selectively acts on particular cyclooxygenase (e.g. COX-1 or COX-2), and a COX inhibitor having no selectivity. Examples of COX inhibitors which can be used in the present invention include etodolac, loxoprofen, celecoxib, valdecoxib, parecoxib, lumiracoxib, meloxicam, tenoxicam, diclofenac, mefenamic acid, tolfenamic acid, flufenamic acid, meclofenamic acid, niflumic acid, benzydamine, indobufen, triflusal, tolmetin, fenoprofen, tiaprofenic acid, felbinac, nepafenac, amfenac, pravadoline, zaltoprofen, sulindac, nabumetone, diflunisal, piroxicam, ibuprofen, naproxen, fenoprofen, aspirin, methyl salicylate, salicylamide, salsalate, aloxiprin, tolmetin, indomethacin, proglumetacine, acemetacin, flurbiprofen, pranoprofen, acetaminophen, floctafenine, lornoxicam, tenoxicam, tiaprofenic acid, oxaprozin, ketoprofen, dexketoprofen, dexibuprofen, alminoprofen, ketorolac, mofezolac, phenylbutazone, oxyphenylbutazone, ketophenylbutazone, feprazone, phenbutazone, ethenzamide, tiaramide, tinoridine, epirizole, emorfazone and a derivative thereof, as well as a pharmacologically acceptable salt thereof. In a preferable aspect of the present invention, the COX inhibitor is etodolac and/or loxoprofen.
Loxoprofen is represented by the formula:
As used herein, the term “prostaglandin receptor antagonist” means a substance having the function of preventing prostaglandin from acting on a receptor, and includes, for example, an EP2 receptor antagonist, an EP4 receptor antagonist, a DP receptor antagonist, and an IP receptor antagonist.
As used herein, the term “EP2 receptor antagonist” means a substance having the function of preventing prostaglandin E2 from acting on an EP2 receptor. Examples of the EP2 receptor antagonist include AH6809 and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
AH6809 is represented by the formula:
As used herein, the term “EP4 receptor antagonist” means a substance having the function of preventing prostaglandin E2 from acting on an EP4 receptor. Examples of the EP4 receptor antagonist include GW627368X and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
GW627368X is represented by the formula:
As used herein, the term “DP receptor antagonist” means a substance having the function of preventing prostaglandin D2 from acting on a DP receptor. Examples of the DP receptor antagonist include S-5751, BWA868C and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
BWA868C is represented by the formula:
As used herein, the term “IP receptor antagonist” means a substance having the function of preventing prostaglandin I2 from acting on an IP receptor. Examples of the IP receptor antagonist include RO1138452 and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
RO1138452 is represented by the formula:
As used herein, the term “prostaglandin receptor agonist” means a substance having the function of acting on a prostaglandin receptor, and includes, for example, an EP3 receptor agonist.
As used herein, the term “EP3 receptor agonist” means a substance having the function of acting on an EP3 receptor. Examples of the EP3 receptor agonist include sulprostone, GR63799, cloprostenol, ONO-AE-248, carbacyclin, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Sulprostone is represented by the formula:
As used herein, the term “TSLP production inhibitor” means a substance having the function of inhibiting production of TSLP. Since a drug which inhibits NF-κB is thought to indirectly inhibit the production of TSLP, it is included in this category. Examples of the TSLP production inhibitor include naringenin, berberine, resveratrol, luteolin, apigenin, chrysoeriol, velutin, rutin, hesperidin, quercetin, daidzein, genistein, noscapine, diindolylmethane, xanthone, parthenolide and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Berberine is represented by the formula:
As used herein, the term “adenylate cyclase inhibitor” means a substance having the function of inhibiting the activity of adenylate cyclase. Examples of the adenylate cyclase inhibitor include 2′,5′-dideoxyadenosine, niacin, insulin, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
2′,5′-Dideoxyadenosine is represented by the formula:
As used herein, the term “omega-3 fatty acid” refers to an unsaturated fatty acid having a carbon-carbon double bond at the ω-3 position. Examples of the omega-3 fatty acid include eicosapentaenoic acid, α-linolenic acid, docosahexaenoic acid, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Eicosapentaenoic acid is represented by the formula:
As used herein, the term “PPAR agonist” means a substance having the function of acting on a peroxisome proliferator-activated receptor, and includes, for example, a PPAR-α agonist, a PPAR-δ agonist, and a PPAR-γ agonist.
As used herein, the term “PPAR-α agonist” means a substance having the function of acting on an α type peroxisome proliferator-activated receptor. The term “PPAR-δ agonist” means a substance having the function of acting on a δ type peroxisome proliferator-activated receptor. The term “PPAR-γ agonist” means a substance having the function of acting on a γ type peroxisome proliferator-activated receptor. Examples of the PPAR-α agonist, and/or the PPAR-δ agonist, and/or the PPAR-γ agonist include clofibrate, fenofibrate, bezafibrate, ciprofibrate, etofibrate, telmisartan, oleyl ethanolamide, tetradecylthioacetic acid, troglitazone, pioglitazone, rosiglitazone, balaglitazone, rivoglitazone, ciglitazone, darglitazone, edaglitazone, netoglitazone, indeglitazar, tesaglitazar, muraglitazar, aleglitazar, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Clofibrate is represented by the formula:
As used herein, the term “dopamine receptor antagonist” means a substance having the function of preventing dopamine from acting on a receptor, and includes, for example, a D1 receptor antagonist, and a D5 receptor antagonist.
As used herein, the term “D1 receptor antagonist” means a substance having the function of preventing dopamine from acting on a D1 receptor. Examples of the D1 receptor antagonist include benzazepine, fenoldopam, lorcaserin, SCH23390, SCH39166, LE300 and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Benzazepine is represented by the formula:
As used herein, the term “D5 receptor antagonist” means a substance having the function of preventing dopamine from acting on a D5 receptor. Examples of the D5 receptor antagonist include SCH39166 and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
SCH39166 is represented by the formula:
As used herein, the term “dopamine receptor agonist” means a substance having the function of acting on a dopamine receptor, and includes, for example, a D2 receptor agonist, a D3 receptor agonist, and a D4 receptor agonist.
As used herein, the term “D2 receptor agonist” means a substance having the function of acting on a D2 receptor. Examples of the D2 receptor agonist include cabergoline, bromocriptine, pergolide, ropinirole, talipexole, aripiprazole, lurasidone, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Ropinirole is represented by the formula:
As used herein, the term “D3 receptor agonist” means a substance having the function of acting on a D3 receptor. Examples of the D3 receptor agonist include piribedil, rotigotine, PD1289077, OH-DPAT and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Rotigotine is represented by the formula:
As used herein, the term “D4 receptor agonist” means a substance having the function of acting on a D4 receptor. Examples of the D4 receptor agonist include flibanserin, ABT724, PD168077, CP226269 and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Flibanserin is represented by the formula:
As used herein, the term “histamine receptor antagonist” means a substance having the function of preventing histamine from acting on a receptor, and includes, for example, a H1 receptor antagonist, and a H2 receptor antagonist.
As used herein, the term “H1 receptor antagonist” means a substance having the function of preventing histamine from acting on a H1 receptor. Examples of the H1 receptor antagonist include ketanserin, thonzylamine, mepyramine, tripelenamine, dimethindene, clemastine, bamipine, isothipendyl, chlorphenoxamine, dimetotiazine, chlorpromazine, hydroxyzine, opipramol, betahistine, cinnarizine, levocabastine, antazoline, diphenylpyraline, carbinoxamine, doxylamine, alimemazine, cyclizine, meclozine, levocetirizine, cyproheptadine, phenindamine, triprolidine, azatadine, astemizole, terfenadine, acrivastine, ebastine, desloratadine, rupatadine, bilastine, mizolastine, noberastine, rocastine, temelastine, bepotastine, diphenhydramine, chlorpheniramine, ketotifen, promethazine, cyproheptadine, epinastine, olopatadine, bepotastine, astemizole, emedastine, mequitazine, oxatomide, loratadine, fexofenadine, cetirizine, azelastine, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Diphenhydramine is represented by the formula:
As used herein, the term “H2 receptor antagonist” means a substance having the function of preventing histamine from acting on a H2 receptor. Examples of the H2 receptor antagonist include cimetidine, ranitidine, famotidine, nizatidine, roxatidine, lafutidine, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Famotidine is represented by the formula:
As used herein, the term “histamine receptor agonist” means a substance having the function of acting on a histamine receptor, and includes, for example, a H1 receptor agonist, a H3 receptor agonist, and a H4 receptor agonist.
As used herein, the term “H1 receptor agonist” means a substance having the function of acting on a H1 receptor. Examples of the H1 receptor agonist include 2-pyridylethylamine, 2-thiazolylethylamine and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
2-Pyridylethylamine is represented by the formula:
As used herein, the term “H3 receptor agonist” means a substance having the function of acting on a H3 receptor. Examples of the H3 receptor agonist include immethridine, imetit, immepip, α-methylhistamine, proxyfan, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Proxyfan is represented by the formula:
As used herein, the term “H4 receptor agonist” means a substance having the function of acting on a H4 receptor. Examples of the H4 receptor agonist include 4-methylhistamine, VUF8430, immepip and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
4-Methylhistamine is represented by the formula:
As used herein, the term “serotonin receptor antagonist” means a substance having the function of preventing serotonin from acting on a receptor, and includes, for example, a 5-HT2 receptor antagonist, a 5-HT4 receptor antagonist, a 5-HT6 receptor antagonist, and a 5-HT7 receptor antagonist.
As used herein, the term “5-HT2 receptor antagonist” means a substance having the function of preventing serotonin from acting on a 5-HT2 receptor. Examples of the 5-HT2 receptor antagonist include pizotifen, risperidone, olanzapine, quetiapine, aripiprazole, blonanserin, clozapine, paliperidone, ritanserin, yohimbine, mesulergine, agomelatine, cyclobenzaprine, sarpogrelate, methysergide, ketanserin, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Olanzapine is represented by the formula:
As used herein, the term “5-HT4 receptor antagonist” means a substance having the function of preventing serotonin from acting on a 5-HT4 receptor. Examples of the 5-HT4 receptor antagonist include piboserod, GR113808, GR125487, RS39604, SB204070 and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Piboserod is represented by the formula:
As used herein, the term “5-HT6 receptor antagonist” means a substance having the function of preventing serotonin from acting on a 5-HT6 receptor. Examples of the 5-HT6 receptor antagonist include cerlapirdine, clozapine and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Cerlapirdine is represented by the formula:
As used herein, the term “5-HT7 receptor antagonist” means a substance having the function of preventing serotonin from acting on a 5-HT7 receptor. Examples of the 5-HT7 receptor antagonist include lurasidone, metergoline, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Metergoline is represented by the formula:
As used herein, the term “serotonin receptor agonist” means a substance having the function of acting on a serotonin receptor, and includes, for example, a 5-HT1 receptor agonist, and a 5-HT2 receptor agonist.
As used herein, the term “5-HT1 receptor agonist” means a substance having the function of acting on a 5-HT1 receptor. Examples of the 5-HT1 receptor agonist include piclozotan, tandospirone, sumatriptan, zolmitriptan, eletriptan, rizatriptan, naratriptan, almotriptan, frovatriptan, avitriptan, ergotamine, ergot alkaloid, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Zolmitriptan is represented by the formula:
As used herein, the term “5-HT2 receptor agonist” means a substance having the function of acting on a 5-HT2 receptor. Examples of the 5-HT2 receptor agonist include α-methyl-5-HT, agomelatine, norfenfluramine, meta-chlorophenylpiperazine and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Agomelatine is represented by the formula:
As used herein, the term “vasopressin receptor antagonist” means a substance having the function of preventing vasopressin from acting on a receptor, and includes, for example, a V2 receptor antagonist.
As used herein, the term “V2 receptor antagonist” means a substance having the function of preventing vasopressin from acting on a V2 receptor. Examples of the V2 receptor antagonist include tolvaptan, mozavaptan, conivaptan, lixivaptan, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Mozavaptan is represented by the formula:
As used herein, the term “vasopressin receptor agonist” means a substance having the function of acting on a vasopressin receptor, and includes, for example, a V1 receptor agonist.
As used herein, the term “V1 receptor agonist” means a substance having the function of acting on a V1 receptor. Examples of the V1 receptor agonist include vasopressin, felypressin, desmopressin, lypressin, terlipressin, ornipressin, argipressin, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Desmopressin is represented by the formula:
As used herein, the term “muscarine receptor antagonist” means a substance having the function of preventing acetylcholine from acting on a muscarine receptor, and includes, for example, a M1 receptor antagonist, a M3 receptor antagonist, and a M5 receptor antagonist.
As used herein, the term “M1 receptor antagonist” means a substance having the function of preventing acetylcholine from acting on a M1 receptor. The term “M3 receptor antagonist” means a substance having the function of preventing acetylcholine from acting on a M3 receptor. The term “M5 receptor antagonist” means a substance having the function of preventing acetylcholine from acting on a M5 receptor. Examples of the M1 receptor antagonist, and/or the M3 receptor antagonist, and/or the M5 receptor antagonist include pirenzepine, atropine, trimebutine, piperidolate, oxybutynin, tropicamide, propiverine, tolterodine, solifenacin, darifenacin, imidafenacin, oxyphencyclimine, tiotropium bromide, esoxybutynin, tiquizium, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Oxybutynin is represented by the formula:
As used herein, the term “muscarine receptor agonist” means a substance having the function of acting on a muscarine receptor, and includes, for example, a M1 receptor agonist, a M2 receptor agonist, a M3 receptor agonist, a M4 receptor agonist, and a M5 receptor agonist.
As used herein, the term “M1 receptor agonist” means a substance having the function of acting on a M1 receptor. The term “M2 receptor agonist” means a substance having the function of acting on a M2 receptor. The term “M3 receptor agonist” means a substance having the function of acting on a M3 receptor. The term “M4 receptor agonist” means a substance having the function of acting on a M4 receptor. The term “M5 receptor agonist” means a substance having the function of acting on a M5 receptor. Examples of the M1 receptor agonist, and/or the M2 receptor agonist, and/or the M3 receptor agonist, and/or the M4 receptor agonist, and/or the M5 receptor agonist include acetylcholine, aceclidine, alvameline, talsaclidine, xanomeline, pilocarpine, cevimeline, bethanechol, mazaticol, muscarine, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Bethanechol is represented by the formula:
As used herein, the term “adrenalin receptor antagonist” means a substance having the function of preventing adrenalin from acting on a receptor, and includes, for example, an al receptor antagonist, a β1 receptor antagonist, a β2 receptor antagonist, and a β3 receptor antagonist.
As used herein, the term “α1 receptor antagonist” means a substance having the function of preventing adrenalin from acting on an al receptor. Examples of the α1 receptor antagonist include prazosin, doxazosin, bunazosin, trimazosin, alfuzosin, silodosin, terazosin, tamusulosin, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Tamusulosin is represented by the formula:
As used herein, the term “β1 receptor antagonist” means a substance having the function of preventing adrenalin from acting on a β1 receptor. The term “β2 receptor antagonist” means a substance having the function of preventing adrenalin from acting on a β2 receptor. The term “β3 receptor antagonist” means a substance having the function of preventing adrenalin from acting on a β3 receptor. Examples of the β1 receptor antagonist, and/or the β2 receptor antagonist, and/or the β3 receptor antagonist include bopindolol, pindolol, timolol, dichloroisoprenaline, alprenolol, carteolol, indenolol, bunitrolol, penbutolol, propranolol, nadolol, nipradilol, tilisolol, acebutolol, celiprolol, metoprolol, atenolol, bisoprolol, betaxolol, practolol, bevantolol, butoxamine, carvedilol, amosulalol, arotinolol, labetalol, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Propranolol is represented by the formula:
As used herein, the term “angiotensin receptor agonist” means a substance having the function of acting on an angiotensin receptor, and includes, for example, an AT2 receptor agonist.
As used herein, the term “adrenalin receptor agonist” means a substance having the function of acting on an adrenalin receptor, and includes, for example, an al receptor agonist, and an α2 receptor agonist.
As used herein, the term “α1 receptor agonist” means a substance having the function of acting on an α1 receptor. The term “α2 receptor agonist” means a substance having the function of acting on an α2 receptor. Examples of the α1 receptor agonist, and/or the α2 receptor agonist include norepinephrine, norfenefrine, etilefrine, naphazoline, phenylephrine, midodrine, methoxamine, oxedrine, metaraminol, arbutamine, ephedrine, oxymetazoline, tetryzoline, xylometazoline, tramazoline, pseudoephedrine, dipivefrine, amidephrine, methylephedrine, rilmenidine, brimonidine, medetomidine, xylazine, tizanidine, guanfacine, methyldopa, guanabenz, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Xylazine is represented by the formula:
As used herein, the term “angiotensin receptor agonist” means a substance having the function of acting on an angiotensin receptor, and includes, for example, an AT2 receptor agonist.
As used herein, the term “AT2 receptor agonist” means a substance having the function of acting on an AT2 receptor. Examples of the AT2 receptor agonist include novokinin, angiotensin and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Angiotensin is represented by the formula:
As used herein, the term “GABA receptor agonist” means a substance having the function of acting on a GABA receptor, and includes, for example, a GABAB receptor agonist.
As used herein, the term “GABAB receptor agonist” means a substance having the function of acting on a GABAB receptor. Examples of the GABAB receptor agonist include baclofen, γ-aminobutyric acid, arbaclofen and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Baclofen is represented by the formula:
As used herein, the term “thrombin receptor antagonist” means a substance having the function of preventing thrombin from acting on a receptor, and includes, for example, a PAR-1 receptor antagonist.
As used herein, the term “PAR-1 receptor antagonist” means a substance having the function of preventing thrombin from acting on a PAR-1 receptor. Examples of the PAR-1 receptor antagonist include vorapaxar, atopaxar, FR171113, RWJ56110, dabigatran, dabigatran etexilate, melagatran, ximelagatran, hirudin, hirulog, argatroban and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Vorapaxar is represented by the formula:
As used herein, the term “thrombin receptor agonist” means a substance having the function of acting on a thrombin receptor, and includes, for example, a PAR-1 receptor agonist.
As used herein, the term “PAR-1 receptor agonist” means a substance having the function of acting on a PAR-1 receptor. Examples of the PAR-1 receptor agonist include TRAP-6, TRAP-14, NAT6-NH2 and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
TRAP-6 is represented by the formula:
As used herein, the term “opioid receptor agonist” means a substance having the function of acting on an opioid receptor. Examples of the opioid receptor agonist include trimebutine, alvimopan, morphine, oxycodone, dihydrocodeine, diamorphine, pethidine, pentazocine, buprenorphine, butorphanol, nalbuphine, tilidine, dezocine, meptazinol, tapentadol, naltrexone, methadone, ethylmorphine, hydrocodone, acetyldihydrocodeine, nalorphine, loperamide, remoxipride, opipramol, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Buprenorphine is represented by the formula:
As used herein, the term “leukotriene receptor antagonist” means a substance having the function of preventing leukotriene from acting on a receptor, and includes, for example, a CysLT1 receptor antagonist, and a CysLT2 receptor antagonist
As used herein, the term “CysLT1 receptor antagonist” means a substance having the function of preventing leukotriene from acting on a CysLT1 receptor. The term “CysLT2 receptor antagonist” means a substance having the function of preventing leukotriene from acting on a CysLT2 receptor. Examples of the CysLT1 receptor antagonist, and/or the CysLT2 receptor antagonist include montelukast, zafirlukast, pranlukast, and a derivative thereof, as well as a pharmacologically acceptable salt thereof. Examples of the pharmacologically acceptable salt of montelukast include montelukast sodium and the like.
Montelukast sodium is represented by the formula:
As used herein, the term “leukotriene receptor agonist” means a substance having the function of acting on a leukotriene receptor, and includes, for example, a BLT receptor agonist.
As used herein, the term “BLT receptor agonist” means a substance having the function of acting on a BLT receptor. Examples of the BLT receptor agonist include leukotriene B4, CAY10583 and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Leukotriene B4 is represented by the formula:
As used herein, the term “ADP receptor agonist” means a substance having the function of acting on an ADP receptor. Examples of the ADP receptor agonist include adenosine diphosphate, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Adenosine diphosphate is represented by the formula:
As used herein, the term “melatonin receptor agonist” means a substance having the function of acting on a melatonin receptor. Examples of the melatonin receptor agonist include melatonin, perlapine, tasimelteon, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Melatonin is represented by the formula:
As used herein, the term “somatostatin receptor agonist” means a substance having the function of acting on a somatostatin receptor. Examples of the somatostatin receptor agonist include somatostatin, somatostatin-14, octreotide, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Octreotide is represented by the formula:
As used herein, the term “cannabinoid receptor agonist” means a substance having the function of acting on a cannabinoid receptor. Examples of the cannabinoid receptor agonist include dronabinol, nabilone, levonantradol, otenabant, GW833972A, GW405833, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Dronabinol is represented by the formula:
As used herein, the term “sphingosine-1 phosphate receptor agonist” means a substance having the function of acting on a sphingosine-1 phosphate receptor. Examples of the sphingosine-1 phosphate receptor agonist include fingolimod, ponesimod, RPC-1063, ONO-4641, SEW2871, sphingosine-1 phosphate and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Fingolimod is represented by the formula:
As used herein, the term “metabotropic glutamate receptor agonist” means a substance having the function of acting on a metabotropic glutamate receptor, and includes, for example, an mGluR2 receptor agonist, an mGluR3 receptor agonist, an mGluR4 receptor agonist, an mGluR6 receptor agonist, an mGluR7 receptor agonist, and an mGluR8 receptor agonist.
As used herein, the term “mGluR2 receptor agonist” means a substance having the function of acting on an mGluR2 receptor. The term “mGluR3 receptor agonist” means a substance having the function of acting on an mGluR3 receptor. The term “mGluR4 receptor agonist” means a substance having the function of acting on an mGluR4 receptor. The term “mGluR6 receptor agonist” means a substance having the function of acting on an mGluR6 receptor. The term “mGluR7 receptor agonist” means a substance having the function of acting on an mGluR7 receptor. The term “mGluR8 receptor agonist” means a substance having the function of acting on an mGluR8 receptor. Examples of the mGluR2 receptor agonist, and/or the mGluR3 receptor agonist, and/or the mGluR4 receptor agonist, and/or the mGluR6 receptor agonist, and/or the mGluR7 receptor agonist, and/or the mGluR8 receptor agonist include VU0361737, VU0155041, biphenylindanone A, PBDA, L-AP4, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
VU0361737 is represented by the formula:
As used herein, the term “phospholipase A2 inhibitor” means a substance having the function of inhibiting the activity of phospholipase A2. Examples of the phospholipase A2 inhibitor include glycyrrhizic acid, glycyrrhetic acid, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Glycyrrhetic acid is represented by the formula:
As used herein, the term “TGF-β production inhibitor” means a substance having the function of inhibiting production of TGF-β. Examples of the TGF-β production inhibitor include pirfenidone, tranilast, and a derivative thereof, as well as a pharmacologically acceptable salt thereof.
Pirfenidone is represented by the formula:
As used herein, the term “Th2 cytokine inhibitor” means a substance having the function of inhibiting production of a Th2 cytokine such as IL-4 and IL-5. Examples of the Th2 cytokine inhibitor include suplatast and a derivative thereof, as well as a pharmacologically acceptable salt thereof. Examples of the pharmacologically acceptable salt of suplatast include suplatast tosylate. In a preferable aspect of the present invention, the Th2 cytokine inhibitor is suplatast tosylate.
Suplatast tosylate is represented by the formula:
As used herein, the term “immunomodulatory small molecule drug” means a substance which activates or suppresses immune cells such as a T cell, a NK cell, a macrophage and the like, and which does not correspond to any of the aforementioned TLR ligand, cyclic dinucleotide, helper peptide, cyclooxygenase inhibitor, prostaglandin receptor antagonist, prostaglandin receptor agonist, TSLP production inhibitor, adenylate cyclase inhibitor, omega-3 fatty acid, PPAR agonist, dopamine receptor antagonist, dopamine receptor agonist, histamine receptor agonist, histamine receptor antagonist, serotonin receptor agonist, serotonin receptor antagonist, vasopressin receptor antagonist, vasopressin receptor agonist, muscarine receptor antagonist, muscarine receptor agonist, adrenalin receptor antagonist, adrenalin receptor agonist, angiotensin receptor agonist, GABA receptor agonist, thrombin receptor antagonist, thrombin receptor agonist, opioid receptor agonist, ADP receptor agonist, leukotriene receptor antagonist, leukotriene receptor agonist, melatonin receptor agonist, somatostatin receptor agonist, cannabinoid receptor agonist, sphingosine-1 phosphate receptor agonist, metabotropic glutamate receptor agonist, phospholipase A2 inhibitor, TGF-β production inhibitor, and Th2 cytokine inhibitor. Examples of the immunomodulatory small molecule drug include bestatin, pidotimod, levamisole, golotimod, forphenicinol, and a derivative thereof, as well as a pharmacologically acceptable salt thereof. Examples of the pharmacologically acceptable salt of levamisole include levamisole hydrochloride.
Bestatin is represented by the formula:
Pidotimod is represented by the formula:
Levamisole hydrochloride is represented by the formula:
In the present invention, the immunomodulatory small molecule drug is usually a compound having a molecular weight of less than 1000, preferably less than 500. In a preferable aspect of the present invention, the immunomodulatory small molecule drug is one or more compounds selected from the group consisting of bestatin, pidotimod and levamisole hydrochloride.
As above described, the inventors have found that among a variety of cellular immunity induction promoters, a TLR ligand, a cyclic dinucleotide, a helper peptide, an immunomodulatory small molecule drug, a cyclooxygenase inhibitor, a prostaglandin receptor antagonist, a prostaglandin receptor agonist, a TSLP production inhibitor, an adenylate cyclase inhibitor, an omega-3 fatty acid, a PPAR agonist, a dopamine receptor antagonist, a dopamine receptor agonist, a histamine receptor agonist, a histamine receptor antagonist, a serotonin receptor agonist, a serotonin receptor antagonist, a vasopressin receptor antagonist, a vasopressin receptor agonist, a muscarine receptor antagonist, a muscarine receptor agonist, an adrenalin receptor antagonist, an adrenalin receptor agonist, an angiotensin receptor agonist, a GABA receptor agonist, a thrombin receptor antagonist, a thrombin receptor agonist, an opioid receptor agonist, an ADP receptor agonist, a leukotriene receptor antagonist, a leukotriene receptor agonist, a melatonin receptor agonist, a somatostatin receptor agonist, a cannabinoid receptor agonist, a sphingosine-1 phosphate receptor agonist, a metabotropic glutamate receptor agonist, a phospholipase A2 inhibitor, a TGF-β production inhibitor, and a Th2 cytokine inhibitor are particularly suitable for enhancing immune response induced by transdermal administration of the WT1 peptide antigen and/or the modified WT1 peptide antigen. Therefore, in one aspect, the cellular immunity induction promoter of the present invention is one or more substances selected from them. In terms of the effect to enhance the immune response induced by the WT1 peptide antigen and/or the modified WT1 peptide antigen, preferable cellular immunity induction promoters are one or more substances selected from the group consisting of a TLR3 ligand, a TLR 4 ligand, a TLR7 and/or TLR8 ligand, a TLR9 ligand, an immunomodulatory small molecule drug, a cyclooxygenase inhibitor and a cyclic dinucleotide, and a more preferable cellular immunity induction promoter is one or more substances selected from the group consisting of a TLR7 and/or TLR8 ligand, a cyclic dinucleotide, a TLR9 ligand and a cyclooxygenase inhibitor. The induction of cellular immunity can be determined quantitatively by a variety of known methods. Any of those known method, for example, the ELISPOT method described in Examples may be used in this application.
As used herein, the non-invasive administration means administration without actively giving physical irritation and/or chemical irritation, preferably without giving physical irritation (e.g. without giving irritation by tape stripping or microneedle) to a skin.
As used herein, the term “mildly irritating condition” means a condition under which irritation to be given to the skin is lower than the irritation generally given in order to improve the skin permeability of the antigen contained in conventional vaccines, or a condition under which irritation is not given to the skin at all. In general, physical and/or chemical stimulation is given to the skin before or simultaneously with the transdermal administration of a conventional vaccine composition so that the antigen can penetrate through the skin. In a preferable aspect of this invention, examples of the mildly irritating condition include a condition of low physical irritation and a condition of low chemical irritation. The condition of low physical irritation is, for example, a condition under which transepidermal water loss (TEWL) (g/h·m2) in the model animal for skin irritation evaluation is 50 or less, preferably 45 or less, more preferably 40 or less, even more preferably 35 or less, further preferably 30 or less. Since the TEWL level in non-treated skin is about 2 (g/h·m2), the TEWL level before the administration of the vaccine composition may be 2 (g/h·m2) or more. The condition of low chemical irritation is, for example, a condition under which the thymic stromal lymphopoietin (TSLP) level (pg/mg protein) in the skin of the model animal for skin irritation evaluation is 10000 or less, preferably 9000 or less, more preferably 8000 or less, further preferably 7000 or less. Since the TSLP level is about 1 (pg/mg protein) in non-treated skin, the TSLP level at completion of the administration of the vaccine composition exceeds 1 (pg/mg protein), preferably exceeds 2 (pg/mg protein), more preferably exceeds 3 (pg/mg protein). The “thymic stromal lymphopoietin (TSLP)” is a cytokine which participates in differentiation and recruitment of T cells, and can be utilized as an index of the degree of skin irritation in the present invention. Greater TSLP value means stronger skin irritation. Examples of means for attaining the condition of low physical irritation include not-conducting the conventional pre-treatment of the skin before the administration such as not conducting tape stripping or microneedle puncture before the administration. Examples of means for attaining the condition of low chemical irritation include avoiding administration of an irritating chemical ingredient such as ethanol or a surfactant at a certain amount or more. The procedure for attaining the mildly irritating condition can be determined by using a model animal for skin irritation evaluation, and the determined procedure can be applied to the subject to be treated by the vaccine composition, for example, a human subject.
As used herein, the term “cancer” means a cancer associated with abnormal expression, for example, overexpression of the WT1 gene. Examples of cancer may include hematopoietic tumors and solid cancers. Examples of the hematopoietic tumors associated with abnormal expression of the WT1 gene include, but are not limited to, leukemia such as acute myelocytic leukemia, acute lymphocytic leukemia and chronic myelocytic leukemia, myelodysplastic syndrome, multiple myeloma, as well as malignant lymphoma such as non-Hodgkin's lymphoma. Examples of the solid cancers associated with abnormal expression of the WT1 gene include, but are not limited to, lung cancer, breast cancer, stomach cancer, large intestine/rectum cancer, germ cell cancer, liver cancer, skin cancer, pancreas cancer, bile duct cancer, head and neck squamous cell cancer, thyroid cancer, kidney cancer, bladder cancer, prostate cancer, ovarian cancer, uterine cancer, cervical cancer, bone soft tissue sarcoma, malignant melanoma, malignant mesothelioma, testicular germ cell tumor and malignant glioma.
As used herein, the term “abnormal expression of a gene” means that the expression level of the gene in a cell is increased or decreased remarkably, for example, by 2 times or more such as by 4 times or more, as compared with the other cells in the same tissue. The term “overexpression” means that the abnormal expression is an increase in the expression level. The expression level of a gene can be easily measured using any method well-known in the art.
As used herein, the term “subject” means any animal having the WT1 gene whose immune response can be induced by the transdermal administration of a cancer vaccine composition for transdermal administration at a practical stage. Typically, the subject may be a mammal such as human, mouse, rat, dog, cat, rabbit, horse, cow, sheep, pig, goat, monkey, and chimpanzee. A particularly preferable subject is human.
As used herein, the term “model animal for immunological evaluation” means a model animal for evaluating the property of a cancer vaccine composition for transdermal administration to induce immunity. Specifically, it means a model animal for evaluating the property of inducing cellular immunity. The model animal for immunological evaluation should be selected in view of compatibility between the antigen in the vaccine composition to be evaluated and the MHC class 1 molecule of the animal. An animal model suitable for evaluating the property of the vaccine composition to induce the cellular immunity should be used. For example, in the case of a vaccine composition containing a HLA-A*24 type MHC restricted class 1 peptide, the property may be evaluated in a BALB/c mouse. In the case of a vaccine composition containing a HLA-A*02 type MHC restricted peptide, the property may be evaluated in a genetically modified mouse by which cellular immunity induction by the HLA-A*02 type MHC restricted peptide can be evaluated. In the case of a vaccine composition containing other HLA type MHC restricted peptide, the property is evaluated in an animal by which cellular immunity induction by the HLA type MHC restricted peptide can be evaluated. In the case of a vaccine composition containing a protein antigen, the property is evaluated in an animal having MHC compatible with a class 1 epitope to be used to induce the cellular immunity, among various class 1 epitopes included in the amino acid sequence of the protein antigen. In addition, in the case of a cancer vaccine composition for transdermal administration using Db126 peptide which is compatible with not only HLA-A*02 type but also MHC-H-2 Db type, not only a genetically modified mouse by which cellular immunity induction by the HLA-A*0201 type MHC restricted peptide can be evaluated, but also a C57BL/6 mouse which is an animal having MHC-H-2 Db type can be used as the model mouse for immunological evaluation. When the hair of the animal is cut to ensure the place for transdermal administration, the animal should be used after it is recovered from the skin damage caused by the hair cut.
As used herein, the term “model animal for skin irritation evaluation” means a model animal for evaluating transepidermal water loss (TEWL) as an index of physical irritation of the skin, or a model animal for evaluating TSLP as an index of the skin irritation property of a cancer vaccine composition for transdermal administration. Regardless of the kind of the antigen contained in the cancer vaccine composition for transdermal administration, C57BL/6 mouse may be used as model animal for skin irritation evaluation. When the hair of the animal is cut to ensure the place for the transdermal administration, the animal should be used after it is recovered from the skin damage caused by the hair cut.
It has already been revealed that WT1 peptides and/or the modified WT1 peptides are useful as cancer vaccine (e.g. Patent Document 1).
As used herein, the composition “for transdermal administration” may be provided in any formulation or preparation which is usually used in the transdermal administration, for example, a liquid formulation for external use such as a liniment formulation or a lotion formulation, a spray formulation for external use such as an aerosol formulation, an ointment formulation, a plaster formulation, a cream formulation, a gel formulation, or a patch preparation such as a tape preparation or a cataplasm preparation. Grouping, definition, a nature, a production process and the like of these formulations and preparations are well-known in the art. For example, see Japanese Pharmacopoeia 16th edition.
Examples of the base for liniment formulation include water, ethanol, fatty oils such as hard paraffin, soft paraffin, liquid paraffin, glycerin, paraffin oil and beeswax, metal soap; mucilages; natural oils (e.g. almond oil, corn oil, peanut oil, castor oil, olive oil, or a derivative thereof (such as polyoxyl castor oil)); mutton tallow or a derivative thereof, fatty acids and/or esters (e.g. stearic acid, oleic acid, isopropyl myristate).
The lotion formulation is a preparation in which the active ingredient is finely and homogeneously dispersed in an aqueous liquid, and there are a suspending lotion formulation and an emulsified lotion formulation. Examples of the suspending agent include gum arabic, sodium alginate, carboxymethylcellulose sodium, methylcellulose, bentonite and the like. Examples of the emulsifying agent include sodium lauryl sulfate, sorbitan fatty acid ester and the like.
For example, as an ointment base, hydrophobic base such as fats or oils, waxes and hydrocarbon compounds can be generally used. Specifically, examples of the ointment base include mineral bases such as yellow vaseline, white vaseline, paraffin, liquid paraffin, plastibase, silicone and the like, and animal or plant bases such as beeswax, animal or vegetable fat or oil and the like.
Examples of the base for cream formulation include water/oil type bases such as hydrophilic ointment, vanishing cream and the like; and oil/water type bases such as hydrophilic vaseline, purified lanolin, Aquahole, Eucerin, Neocerin, hydrous lanolin, cold cream, hydrophilic plastibase and the like.
As a gel base, for example, a carboxyvinyl polymer, a gel base, a fat-free ointment, polyvinylpyrrolidone, polyvinyl alcohol, sodium polyacrylate, carboxymethylcellulose, starch, xanthan gum, karaya gum, sodium alginate, methylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose phthalate (HPMCP), cellulose acetate phthalate (CAP), carboxymethylethylcellulose (CMEC), ethylcellulose, hydroxyethylcellulose, hydroxypropylmethylcellulose, a carboxyvinyl polymer, tragacanth, gum arabic, tara gum, tamarind seed gum, psyllium seed gum, agar, gellan gum, glucomannan, locust bean gum, guar gum, carrageenan, dextrin, dextran, amylose, carboxymethylcellulose potassium, carboxymethylcellulose sodium, carboxymethylcellulose calcium, pullulan, chitosan, sodium carboxymethyl starch, plantago testa, galactomannan, aminoalkyl methacrylate copolymer E, aminoalkyl methacrylate copolymer RS, methacrylic acid copolymer L, methacrylic acid copolymer LD, methacrylic acid copolymer S, methyl acrylate/methacrylic acid/methyl methacrylate copolymer, ethyl acrylate/methyl methacrylate copolymer, polyvinylacetal diethylaminoacetate, casein, alginic acid alkyl ester, gelatin, polyethylene glycol and the like as a hydrogel base can be used.
Examples of the base for a cataplasm preparation include gelatin, carboxymethylcellulose sodium, methylcellulose, sodium polyacrylate, kaolin, polyvinyl alcohol, polyvinylpyrrolidone, glycerin, propylene glycol, water and the like.
For example, a tape preparation comprises an adhesive layer comprising an acrylic adhesive, a natural rubber adhesive, a synthetic rubber adhesive (including rubber elastomer such as synthetic isoprene rubber, polyisobutylene (PIB), styrene-butadiene rubber, styrene-isoprene-styrene (SIS) rubber etc.), a silicone adhesive, a vinyl ester adhesive, a vinyl ether adhesive or the like, and a support which supports the adhesive layer. Optionally, the preparation may further contain a release liner which covers the adhesive layer to avoid exposure thereof before use and can easily be peeled from the adhesive layer upon use.
The amount of the WT1 peptide and/or the modified WT1 peptide and the cellular immunity induction promoter in the cancer vaccine composition of the present invention is not particularly limited. In one aspect, the cancer vaccine composition of the present invention contains the WT1 peptide and/or the modified WT1 peptide preferably in an amount of 0.01 to 40% by weight, more preferably 0.1 to 30% by weight based on the total weight of the composition. In one aspect, the cancer vaccine composition of the present invention contains the cellular immunity induction promoter preferably in an amount of 0.001 to 30% by weight, more preferably 0.01 to 20% by weight based on the total weight of the composition.
When the composition of the present invention is provided in the form of a tape preparation, the tape preparation contains an adhesive layer containing the active ingredient which is the WT1 peptide and/or the modified WT1 peptide, and a support which supports the adhesive layer, in the case of a matrix type tape preparation. In the case of a reservoir type tape preparation, the tape preparation contains a reservoir containing the active ingredient and an adhesive layer, and a support which supports the reservoir and an adhesive layer. The tape preparation, as described below, optionally, may further contain a release liner which does not expose the adhesive layer before use and can be easily peeled from the adhesive layer upon use. Hereinafter, representatively, a tape preparation will be explained in detail. The adhesive layer of the tape preparation (hereinafter, also referred to as “tape preparation of the present invention”) contains the WT1 peptide and/or the modified WT1 peptide, and the cellular immunity induction promoter. In one aspect, the adhesive layer of the tape preparation of the present invention contains the WT1 peptide and/or the modified WT1 peptide preferably in an amount of 0.01 to 40% by weight, more preferably 0.1 to 30% by weight based on the total weight of the adhesive layer. In one aspect, the adhesive layer of the tape preparation of the present invention contains the cellular immunity induction promoter preferably in an amount of 0.001 to 30% by weight, more preferably 0.01 to 20% by weight based on the total weight of the adhesive layer.
An adhesive which is to form the adhesive layer of the tape preparation of the present invention is not particularly limited, and examples thereof include acrylic adhesives consisting of an acrylic polymer; rubber adhesives comprising a rubber elastomer such as a styrene-diene-styrene block copolymer (e.g. styrene-isoprene-styrene block copolymer, styrene-butadiene-styrene block copolymer etc.), polyisoprene, polyisobutylene, butyl rubber, polybutadiene and the like; silicone adhesives such as silicone rubber, dimethylsiloxane base, diphenylsiloxane base and the like; vinyl ether adhesives such as polyvinyl methyl ether, polyvinyl ethyl ether, polyvinyl isobutyl ether and the like; vinyl ester adhesives such as vinyl acetate-ethylene copolymer and the like; and polyester adhesives consisting of a carboxylic acid component such as dimethyl terephthalate, dimethyl isophthalate, dimethyl phthalate, and a polyhydric alcohol component such as ethylene glycol. A particularly preferable adhesive is an acrylic adhesive, a rubber adhesive, and a silicone adhesive. These adhesives are contained in the adhesive layer preferably in an amount of 10 to 90% by weight, more preferably 20 to 80% by weight, as a solid matter thereof, based on the total weight of the adhesive layer.
Examples of the acrylic adhesive include an acrylic acid ester adhesive containing, as a main component, a polymer comprising (meth)acrylic acid C2-C18 alkyl ester as a first monomer. Examples of the (meth)acrylic acid alkyl ester (first monomer) include (meth)acrylic acid alkyl esters in which an alkyl group is a straight, branched or cyclic alkyl group having 1 to 18 carbon atoms (e.g. methyl, ethyl, propyl, butyl, pentyl, hexyl, cyclohexyl, heptyl, octyl, 2-ethylhexyl, nonyl, decyl, undecyl, dodecyl, tridecyl etc.). Preferred are (meth)acrylic acid alkyl esters in which an alkyl group is a straight, branched or cyclic alkyl group having 4 to 18 carbon atoms (e.g. butyl, pentyl, hexyl, cyclohexyl, heptyl, octyl, 2-ethylhexyl, nonyl, decyl, undecyl, dodecyl, tridecyl etc.). Further, since use of a monomer component which lowers the glass transition temperature of a polymer is suitable in order to impart adhesiveness at a room temperature, (meth)acrylic acid alkyl esters in which an alkyl group is a straight, branched or cyclic alkyl group having 4 to 8 carbon atoms (e.g. butyl, pentyl, hexyl, cyclohexyl, heptyl, octyl, 2-ethylhexyl etc., preferably butyl, 2-ethylhexyl, and cyclohexyl, particularly preferably 2-ethylhexyl) are more preferable. Specifically, butyl acrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate, cyclohexyl acrylate, cyclohexyl methacrylate and the like are more preferable and, among them, 2-ethylhexyl acrylate is most preferable. These (meth)acrylic acid alkyl esters (first monomer component) can be used alone, or can be used by combining two or more thereof.
In addition, the acrylic adhesive may contain a second monomer copolymerizable with the (meth)acrylic acid alkyl ester, and examples of the second monomer include monomers having a functional group which can become a crosslinking point upon use of a crosslinking agent. Examples of the functional group which can participate in a crosslinking reaction include a hydroxy group, a carboxyl group, a vinyl group and the like, and a hydroxy group and a carboxyl group are preferable. Specific examples of the monomer (second monomer component) include (meth)acrylic acid hydroxyethyl ester, (meth)acrylic acid hydroxypropyl ester, N-hydroxyalkyl(meth)acrylamide, (meth)acrylic acid, itaconic acid, maleic acid, maleic anhydride, mesaconic acid, citraconic acid, glutaconic acid and the like. Among them, from the viewpoint of easy availability, acrylic acid, methacrylic acid, and acrylic acid hydroxyethyl ester (particularly, 2-hydroxyethyl acrylate) are preferable, and acrylic acid is most preferable. These monomers (second monomer component) can be used alone, or can be used by combining two or more thereof.
Further, the acrylic adhesive may optionally contain a third monomer in addition to the second monomer. Examples of the third monomer (third monomer component) include vinyl esters such as vinyl acetate, vinyl propionate and the like; vinyl ethers such as methyl vinyl ether, ethyl vinyl ether and the like; vinyl amides such as N-vinyl-2-pyrrolidone, N-vinylcaprolactam and the like; (meth)acrylic acid alkoxy esters such as (meth)acrylic acid methoxyethyl ester, (meth)acrylic acid ethoxyethyl ester, (meth)acrylic acid tetrahydrofurfuryl ester and the like; hydroxy group-containing monomers (since this is used as a third monomer component, it is not a crosslinking point) such as hydroxypropyl (meth)acrylate, α-hydroxymethyl acrylate and the like; (meth)acrylic acid derivatives having an amide group such as (meth)acrylamide, dimethyl(meth)acrylamide, N-butyl(meth)acrylamide, N-methylol(meth)acrylamide and the like; (meth)acrylic acid aminoalkyl esters such as (meth)acrylic acid aminoethyl ester, (meth)acrylic acid dimethylaminoethyl ester, (meth)acrylic acid t-butylaminoethyl ester and the like; (meth)acrylic acid alkoxyalkylene glycol esters such as (meth)acrylic acid methoxyethylene glycol ester, (meth)acrylic acid methoxydiethylene glycol ester, (meth)acrylic acid methoxypolyethylene glycol ester, (meth)acrylic acid methoxypolypropylene glycol ester and the like; (meth)acrylonitriles; monomers having sulfonic acid such as styrenesulfonic acid, allylsulfonic acid, sulfopropyl(meth)acrylate, (meth)acryloyloxynaphthalenesulfonic acid, acrylamidemethylsulfonic acid and the like; and vinyl-group-containing monomers such as vinylpiperidone, vinylpyrimidine, vinylpiperazine, vinylpyrrole, vinylimidazole, vinyloxazole, vinylmorpholine and the like. Among them, vinyl esters and vinyl amides are preferable, vinyl acetate is preferable as vinyl esters, and N-vinyl-2-pyrrolidone is preferable as vinyl amides. These monomers (third monomer component) can be used alone, or can be used by combining two or more kinds thereof.
When the acrylic adhesive is a copolymer of a (meth)acrylic acid alkyl ester (first monomer component) and a vinyl monomer having a functional group which can participate in a crosslinking reaction (second monomer component), the (meth)acrylic acid alkyl ester and the vinyl monomer having a functional group which can participate in a crosslinking reaction are copolymerized by blending the components at a weight ratio of (meth)acrylic acid alkyl ester:vinyl monomer having a functional group which can participate in a crosslinking reaction of preferably 99 to 85:1 to 15, more preferably 99 to 90:1 to 10.
Further, when the acrylic adhesive is a copolymer of a (meth)acrylic acid alkyl ester (first monomer component), a vinyl monomer having a functional group which can participate in a crosslinking reaction (second monomer component), and a monomer other than them (third monomer component), the (meth)acrylic acid alkyl ester, the vinyl monomer having a functional group which can participate in a crosslinking reaction, and the monomer other than them are copolymerized by blending the components at a weight ratio of (meth)acrylic acid alkyl ester:vinyl monomer having a functional group which can participate in a crosslinking reaction:monomer other than them of preferably 40 to 94:1 to 15:5 to 50, more preferably 50 to 89:1 to 10:10 to 40.
The components may be polymerized by a known method. For example, the monomers in a solvent such as ethyl acetate may be reacted in the presence of a polymerization initiator (e.g. benzoyl peroxide, azobisisobutyronitrile etc.) at 50 to 70° C. for 5 to 48 hours.
Particularly preferable acrylic adhesives in the present invention are, for example, a copolymer of acrylic acid 2-ethylhexyl ester/acrylic acid/N-vinyl-2-pyrrolidone, a copolymer of acrylic acid 2-ethylhexyl ester/N-(2-hydroxyethyl)acrylamide/N-vinyl-2-pyrrolidone, a copolymer of acrylic acid 2-ethylhexyl ester/acrylic acid 2-hydroxyethyl ester/vinyl acetate, and a copolymer of acrylic acid 2-ethylhexyl ester/acrylic acid, and more preferably, a copolymer of acrylic acid 2-ethylhexyl ester/acrylic acid/N-vinyl-2-pyrrolidone.
Optionally, these acrylic adhesives may be subjected to physical crosslinking treatment by ultraviolet irradiation, or radiation irradiation such as electron beam irradiation, or chemical crosslinking treatment using various crosslinking agents such as an isocyanate compound such as trifunctional isocyanate, organic peroxide, organic metal salt, metal alcoholate, metal chelate compound, polyfunctional compound (polyfunctional external crosslinking agent, a monomer for polyfunctional internal crosslinking such as diacrylate and dimethacrylate).
Examples of the rubber adhesive include rubber adhesives in which a rubber elastomer such as polyisobutylene/polybutene elastomer, styrene/diene/styrene block copolymer, styrene/butadiene elastomer, nitrile elastomer, chloroprene elastomer, vinylpyridine elastomer, polyisobutylene elastomer, butyl elastomer, or isoprene/isobutylene elastomer is blended. Among them, in view of solubility of the peptide and the cellular immunity induction promoter in the adhesive and the skin adhesiveness, polyisobutylene (PIE), styrene/diene/styrene block copolymer (e.g. styrene/butadiene/styrene block copolymer (SBS), styrene/isoprene/styrene block copolymer (SIS) etc.) and the like are preferably used. A mixture of two or more of those adhesives may also be used.
Further, in order to achieve a suitable adhesive force and drug solubility of the rubber adhesive, the rubber adhesive may be a mixture of two or more rubber elastomers of the same or different monomer components each having different average molecular weights. For example, with respect to polyisobutylene, a mixture of polyisobutylene of high molecular weight having an average molecular weight of 150,000 to 5,500,000, polyisobutylene of medium molecular weight having an average molecular weight of 10,000 to 150,000 and/or polyisobutylene of low molecular weight having an average molecular weight of 500 to 4,000 is preferable. In this case, it is preferable to blend polyisobutylenes of high molecular weight, medium molecular weight and low molecular weight at a weight ratio of high molecular weight:medium molecular weight:low molecular weight=10 to 80, preferably 20 to 70:0 to 90, preferably 10 to 80:0 to 80, preferably 10 to 60.
As used herein, the average molecular weight means the viscosity average molecular weight calculated from the viscosity expression of Flory, and is obtained by calculating the Staudinger index (J0) from the flow time of the capillary 1 of a Ubbelohde viscometer at 20° C. by the Schulz-Blaschke expression, and using this J0 value with the following expression.
(Formula)
J
0=ηsp/c(1+0.31ηsp) (Schulz-Blaschke equation)
ηsp=t/t0−1
J
0=3.06×10−2
In order to impart suitable adhesiveness, for example, a tackifier such as a rosin resin, a polyterpene resin, a coumarone-indene resin, a petroleum resin, a terpene-phenol resin, a xylene resin, an alicyclic saturated hydrocarbon resin or the like may be blended in the rubber adhesive. One, two or more kinds of tackifiers can be blended in an amount of 50% by weight or less, preferably 5 to 40% by weight based on the total weight of the rubber adhesive.
Examples of the silicone adhesive include silicone adhesives consisting of polyorganosiloxane adhesive, polydimethylsiloxane adhesive, and polydimethyldiphenyl-siloxane adhesive. Inter alia, a commercially available silicone adhesive such as BIO PSA from Dow Corning Corporation is preferably used.
The support which supports the adhesive layer is not particularly limited, and a support that is substantially impervious to the peptide and the cellular immunity induction promoter so that the peptide, the cellular immunity induction promoter, additives or the like contained in the adhesive layer will not pass through the support and leaked from the rear surface.
As the support, for example, a single film of polyester, polyamide, poly(vinylidene chloride), polyethylene, polypropylene, poly(vinyl chloride), ethylene-ethyl acrylate copolymer, polytetrafluoroethylene, ionomer resin, metal foil or the like, or a laminate film of them can be used. Among them, in order to make adhesiveness (anchorability) between the support and the adhesive layer good, it is preferable that the support is a laminate film of a nonporous plastic film and a porous film made of the aforementioned material. In this case, it is desirable that the adhesive layer is formed on the porous film side. As such a porous film, a porous film which improves anchorability with the adhesive layer is adopted, and specific examples thereof include a paper sheet, a woven fabric, a non-woven fabric, a knitted fabric, a sheet which has been mechanically perforation-treated, and the like. Among them, from the viewpoint of handling property and the like, particularly, a paper sheet, a woven fabric and a non-woven fabric are preferable. As the porous film, in view of improvement in anchorability, softness and sticking operability of a tape preparation and the like, a porous film having a thickness in the range of 1 to 200 μm is adopted. In addition, when a woven fabric or a non-woven fabric is used as the porous film, the weight per unit area is preferably 5 to 30 g/m2, more preferably 6 to 15 g/m2.
Examples of most suitable supports include a laminate film of a polyester film (preferably, polyethylene terephthalate film) having a thickness of 1.5 to 6 μm, and a non-woven fabric made of polyester (preferably, polyethylene terephthalate) having a weight per unit area of 6 to 15 g/m2.
In the tape preparation of the present invention, in order to protect the surface of the adhesive layer until use, it is desirable that a release liner is laminated on the adhesive surface. The release liner is not particularly limited as far as it is treated so that it has the releasing property and it can be released with a sufficiently small peeling force. For example, a film of polyester, poly(vinyl chloride), poly(vinylidene chloride), polyethylene terephthalate or the like, paper such as pure paper, glassine paper and the like, or a laminate film of pure paper or glassine paper and polyolefin may be treated by coating a silicone resin, a fluorine resin or the like on the surface to be contacted with the adhesive layer and is used as the release liner. The thickness of the release liner is preferably 10 to 200 μm, more preferably 25 to 100 μm. As the release liner, polyester layer, particularly, polyethylene terephthalate layer is preferable in view of the barrier property and the cost. Further, in this case, in terms of handling property, a release liner having a thickness of around 25 to 100 μm is preferable.
In addition, the composition of the present invention may contain an additive, if necessary. The additive is selected from, for example, isotonizing agents, antiseptics/germicides, antioxidants, resolvents, solubilizers, suspending agents, fillers, pH adjusting agents, stabilizers, absorption promoters, release rate controlling agents, coloring agents, plasticizers, crosslinking agents, adhesives and the like, or a combination of two or more kinds of them, depending on the compatibility with the main ingredient of the base, the WT1 peptide and/or the modified WT1 peptide and the cellular immunity induction promoter, intended administration regimen and the like. In addition, when the composition of the present invention is in a form of a tape preparation, the tape preparation can contain a skin permeability enhancer as an additive.
As used herein, the term “skin permeability enhancer” means any substance which can improve an efficiency of permeation of a transdermally administered antigen through the skin, as compared with the efficiency obtained without the substance. The skin permeability enhancer is not particularly limited as far as it is liquid at room temperature (25° C.), that is, has fluidity at that temperature and has an absorption promoting effect. When the skin permeability enhancer is a mixture of two or more substances, the mixture is liquid at room temperature (25° C.) and has an absorption promoting effect. The skin permeability enhancer may be an organic liquid and preferably, a hydrophobic liquid in view of their compatibility with the adhesive layer.
Examples of skin permeability enhancers include higher alcohols such as oleyl alcohol, octyldodecanol and the like; polyhydric alcohols such as glycerin, ethylene glycol, polypropylene glycol and the like; higher fatty acids such as oleic acid, caprylic acid and the like; fatty acid esters such as isopropyl myristate, isopropyl palmitate, ethyl oleate and the like; polybasic acid esters such as diethyl sebacate, diisopropyl adipate and the like; polyhydric alcohol fatty acid esters such as diglyceryl triisostearate, monooleic acid sorbitan, dicaprylic acid propylene glycol, monolauric acid polyethylene glycol, tetraoleic acid polyoxyethylene sorbit and the like; polyoxyethylene alkyl ethers such as polyoxyethylene lauryl ether and the like; hydrocarbons such as squalane, liquid paraffin and the like; plant oils such as olive oil, castor oil and the like; silicone oils; pyrrolidones such as N-methylpyrrolidone, N-dodecylpyrrolidone and the like; sulfoxides such as decylmethyl sulfoxide and the like, and these can be used alone, or can be used by mixing two or more kinds thereof.
It is preferable that the composition of the present invention is administered to a subject under the mildly irritating condition. Administration under the mildly irritating condition can be attained, for example, by (i) administering the composition of the present invention to the subject under such an administration condition that transepidermal water loss (TEWL) (g/h·m2) evaluated in a model animal for skin irritation evaluation is 50 or less, or (ii) administering to a subject the composition providing the cutaneous TSLP level (pg/mg protein) of 10000 or less evaluated in a model animal for skin irritation evaluation.
In addition, the cellular immunity induction promoting effect of the composition of the present invention can be improved by supplementing an additional cellular immunity induction promoter that may be a pharmacologically acceptable acid or a pharmacologically acceptable salt thereof.
As used herein, the “pharmacologically acceptable acid” which can be contained in the composition of the present invention means an acid which has no harmful effect on a subject to which the composition is administered, and does not impair the pharmacological activity of the ingredients in the composition. In a preferable aspect of the present invention, the pharmacologically acceptable acid is an organic acid, more preferably an organic compound containing carboxyl group or an organic compound containing sulfo group, more preferably saturated or unsaturated straight or branched fatty acid in which the saturated straight chain part has 8 to 20 carbon atoms, lactic acid, malic acid, salicylic acid, maleic acid, citric acid, or an organic compound containing sulfo group, more preferably saturated or unsaturated straight or branched fatty acid in which the saturated straight chain part has 8 to 16 carbon atoms, lactic acid, malic acid, salicylic acid, maleic acid, citric acid, an organic compound containing sulfo group, further preferably fatty acid selected from the group consisting of decanoic acid, lauric acid, myristic acid, isostearic acid and oleic acid, or lactic acid, salicylic acid, citric acid or methanesulfonic acid.
As used herein, a “pharmacologically acceptable salt” which can be contained in the composition of the present invention means a salt which has no harmful effect on an the subject to be administered with the composition, and does not impair the pharmacological activity of the ingredients in the composition. Examples of pharmacologically acceptable salts include inorganic acid salts (e.g. hydrochloric acid salt and phosphoric acid salt), organic acid salts (e.g. acetic acid salt, phthalic acid salt, and TFA salt), metal salts (alkali metal salts (e.g. sodium salt and potassium salt), alkaline earth metal salts (e.g. calcium salt and magnesium salt), aluminum salt etc.), and amine salts (triethylamine salt, benzylamine salt, diethanolamine salt, t-butylamine salt, dicyclohexylamine salt, arginine salt, dimethylammonium salt, ammonium salt etc.), but are not limited to them.
The therapeutically effective amount of the WT1 peptide and/or the modified WT1 peptide may widely vary depending on severity of the disease, age and relative health of the subject and other known factors. In general, satisfactory result may be obtained at a one day dose of about 0.1 μg to 1 g/kg body weight. The cellular immunity induction promoter is administered simultaneously with the WT1 peptide and/or the modified WT1 peptide or sequentially, and preferably, it is administered simultaneously with the peptide. The effective amount of the cellular immunity induction promoter may widely vary depending on the kind of cellular immunity induction promoter to be used, the presence or absence of other cellular immunity induction promoter and the like, and satisfactory result is obtained at a one day dose of about 0.01 μg to 1 g/kg body weight. The one day dose may be administered in a single dose or in several divided portions at several times such as two times or more, for example, two, three, four or five times. The composition may be applied continuously for a period of between 1 minute and 7 days per one administration. The administration interval is appropriately selected from once every day to once per year (e.g. once per one day, once per 2 days, once per 3 days, once per one week, once per 2 weeks, once per one month, once per 3 months, once per 6 months, once per one year) and longer depending on the state of the patient, severity of the cancer, whether it is for therapeutic purpose or preventive purpose, or the like. Generally, for the purpose of treating a patient actually having a severe cancer, the WT1 peptide and/or the modified WT1 peptide are administered at a higher frequency and a higher dose, while for the preventive purpose for a patient having no cancer, the WT1 peptide and/or the modified WT1 peptide are administered at a lower frequency and a lower dose.
In the present invention, physical irritation means any physical irritation which gives damage to corneum, including scratch and scraping. For example, operation of tape stripping which removes corneum with an adhesive tape or the like, operation of giving damage to the skin with a cutter, and operation using a microneedle such as perforation in corneum are also included in the physical irritation.
Transepidermal water loss means the amount (g) of water which is transpired from 1 m2 of keratin per one hour. The transepidermal water loss can be easily measured in a short time with a water loss measuring device, and is widely used as an index for evaluating the damage degree of the skin. Also in the present invention, the transepidermal water loss can be used as an index of the physical irritation level.
TSLP (Thymic stromal lymphopoietin) is one of IL-7-like cytokines which is produced by keratinocyte of skin, thymus, and mucosal epithelial cells, and is known to be involved in the maturation of dendritic cells, and the differentiation of T cells. In the present invention, the TSLP level can be used as an index of the chemical irritation level which is irritation derived from a drug.
The present invention will be explained in more detail and specifically below by way of Examples. The present invention is not limited to the Examples.
A cream formulation having the ingredients of the following Table 1 was produced. Specifically, Db126 peptide (HLA-A*02 type MHC restricted peptide) or RYF peptide (HLA-A*24 type MHC restricted peptide) or AYL peptide (HLA-A*24 type MHC restricted peptide), cellular immunity induction promoter other than helper peptide, and a helper peptide were weighed at the amounts explicitly described in Table 1, 15 parts by weight of DMSO was further blended, and a base (base cream) was added thereto to the total of 100 parts by weight, to obtain a cream formulation. The ISA base cream in Table 1 was prepared by blending and kneading materials shown described in Table 2.
A composite substrate in which a PET film/PET non-woven fabric laminate product (area 0.7 cm2) was stuck to the central portion of an adhesive tape for fixation so that the PET film side faces the tape was prepared. The cream formulation (4 mg) was coated on the non-woven fabric portion of this composite substrate, and this was used in the immunization test.
Mouse immunization test was performed with the cream formulations using a model animal for immunological evaluation. Evaluation of the immunity induction level was performed by the ELISPOT method. Specifically, the hair of the back of the mouse was cut. The mouse was kept until it recovered from the skin damage due to the hair cutting. After that, a sample was applied to the back of the mouse for the predetermined time, and then removed. Then, the mouse was kept for predetermined days and the level of the antigen-specific cellular immunity was evaluated. After predetermined days from the application of the sample, the spleen was isolated and a spleen cell suspension was prepared. Spleen cells (3×106 cells/well) and the antigen peptide (100 μM) together with the culturing medium were placed into a well of an ELISPOT plate on which an anti-mouse IFN-γ antibody had been immobilized. The plate was cultured for 20 hours under the condition of 37° C. and 5% CO2. The number of the spots representing IFN-γ-producing cells (spot number/3×106 cells) was evaluated by the ELISPOT method. In all cases, 4 mg of the cream formulation was applied once for 24 hours and the spleen was isolated 6 days after the completion of the application.
In Example 5, the skin was subjected to tape stripping (TS) ten times using a DANPRON tape (No. 375 manufactured by NITTO DENKO CS SYSTEM CORPORATION) before the application of the sample and, in Examples 6 and 7, the skin was injured with microcutter (MICRO FEATHER No. 7330G, manufactured by FEATHER) and with microneedle (needle length 750 μm, Micro Needle Roller System MR75, manufactured by Ostar Beauty), respectively, before the application.
In addition, the cutaneous TSLP level of the mouse after administration, transepidermal water loss of the mouse before administration and the skin permeability of Db126 antigen peptide and imiquimod were also measured in some groups.
The TSLP level was evaluated using C57BL/6 mouse as a model animal for skin irritation evaluation. The sample was applied to the model mouse for skin irritation evaluation under the same condition applied in the Mouse immunization test 1. When the application of the sample was completed, the skin of the back of the mouse was isolated, and the skin was ground using a homogenizer (Physcotron, Microtec Co., Ltd.) in an extraction solvent (PBS solution containing a protease inhibitor (Protease Inhibitor Cocktail for general use, manufactured by Sigma-Aldrich) and 10 μM indomethacin (manufactured by Wako Pure Chemical Industries, Ltd.)). The ground skin was centrifuged at 4° C. and 9000 g for 10 minutes, and the supernatant was recovered. The TSLP amount in the supernatant was measured by ELISA (Mouse TSLP Quantikine ELISA Kit, manufactured by R&D Systems). In addition, the total protein amount in the supernatant was measured by the BCA method (Pierce BCA Protein Assay Kit, manufactured by Thermo Fisher Scientific K.K.), and the TSLP amount was divided by the total protein amount for standardization.
Transepidermal water loss of the skin before administration of the sample was evaluated using C57BL/6 mouse as a model animal for skin irritation evaluation. Measurement was performed using a portable type switching chamber water loss measuring device (VAPO SCAN AS-VT100RS, manufactured by Asahibiomed Co., Ltd.). The device was contacted to the skin of the mouse for around 5 to 15 seconds to determine the value. In Examples 5-7, the TEWL (g/h·m2) was measured 10 minutes after applying the pre-treatment.
The skin permeability of Db126 antigen peptide and imiquimod was determined by using a Franz type diffusion cell. The hair of the back of C57BL/6 mouse was previously cut. A piece of the skin was isolated from the back of the mouse and was mounted in the Franz type diffusion cell (application area 4.91 cm2) in which phosphate buffer (pH 7.4 isotonic buffer) at 37° C. was circulated. A 0.7 cm2 preparation was stuck on the mounted skin, and sample in the cell was collected after 24 hours. The collected sample was subjected to high performance liquid chromatograph-tandem mass spectrometer, and the amount of Db126 antigen peptide which permeated through the skin after 24 hours (Db126 antigen peptide permeated amount, μg/cm2/24 hr) and the amount of imiquimod (imiquimod permeated amount, μg/cm2/24 hr) were calculated from a calibration curve which had been determined in advance.
The results of the immunization test, TSLP level and transepidermal water loss are shown in the following Table 1 together with the mouse strain used in the immunization test. “Genetically modified mouse” in Table 1 is a mouse which can be used to evaluate the cellular immunity inducing ability of a HLA-A*0201 type MHC restricted peptide. In addition, the results of measurement of the skin permeability are shown in Table 3.
TFA salt of Db126 antigen peptide, TFA salt of RYF peptide, TFA salt of AYL peptide, acetic acid salt of Db126 antigen peptide, Peptide-25 (Pep25), Peptide-25B (Pep25B), PADRE (universal helper peptide), WT135 (hWT135 helper peptide) and WT1332 (WT1332-347 helper peptide) were chemically synthesized, and purified by HPLC. Imiquimod (IMQ) was purchased from Tokyo Chemical Industry Co., Ltd. Cyclic di-GMP (c-di-GMP) and cyclic di-AMP (c-di-AMP) were purchased from Biolog Life Science Institute.
Pam3CSK4 manufactured by InvivoGen, Zymosan manufactured by Nacalai Tesque, Inc., Poly(I:C) manufactured by InvivoGen, Pantoea bacterium-derived lipopolysaccharide manufactured by MACROPHI Inc., glucopyranosyl lipid manufactured by InvivoGen (MPLAs), sodium hyaluronate manufactured by Kikkoman Biochemifa Company (microhyaluronic acid FCH), bropirimine manufactured by TOCRIS bioscience, R848 and ODN1826 manufactured by InvivoGen, pidotimod manufactured by Santa Cruz Biotechnology, Inc., bestatin manufactured by Wako Pure Chemical Industries, Ltd., levamisole hydrochloride manufactured by MP Biomedicals, suplatast tosylate manufactured by TOCRIS bioscience, etodolac manufactured by Wako Pure Chemical Industries, Ltd., and loxoprofen Na manufactured by Yoshindo Inc. were used, respectively. White vaseline, sorbitan monostearate, isostearic acid, benzyl alcohol, stearyl alcohol, Polysorbate 60, and concentrated glycerin were purchased from Wako Pure Chemical Industries, Ltd. Cetanol was purchased from Tokyo Chemical Industry Co., Ltd.
The following materials were used.
clofibrate: manufactured by LKT Laboratories, Inc., fenofibrate: manufactured by Wako Pure Chemical Industries, Ltd., quercetin: manufactured by Cayman Chemical Company, berberine (berberine chloride n-hydrate): manufactured by Wako Pure Chemical Industries, Ltd., noscapine: manufactured by Wako Pure Chemical Industries, Ltd., 3,3′-diindolylmethane: manufactured by Wako Pure Chemical Industries, Ltd., xanthone: manufactured by Wako Pure Chemical Industries, Ltd., parthenolide: manufactured by Wako Pure Chemical Industries, Ltd., indomethacin: manufactured by Wako Pure Chemical Industries, Ltd., aspirin: manufactured by Sigma-Aldrich, diclofenac (diclofenac sodium): manufactured by Wako Pure Chemical Industries, Ltd., ketoprofen: manufactured by Wako Pure Chemical Industries, Ltd., celecoxib: manufactured by TOCRIS bioscience, valdecoxib: manufactured by TOCRIS bioscience, docosahexaenoic acid: manufactured by Cayman Chemical Company, 2′,5′-dideoxyadenosine: manufactured by BIOMOL International, SCH23390: manufactured by Wako Pure Chemical Industries, Ltd., ropinirole (ropinirole HCl): manufactured by Ragactives, rotigotine: manufactured by STARNASCENS, GW627368X: manufactured by Cayman Chemical
Company, sulprostone: manufactured by Cayman Chemical Company, cloprostenol: manufactured by Wako Pure Chemical Industries, Ltd., BWA868C: manufactured by Cayman Chemical Company, RO1138452: manufactured by Cayman Chemical Company, leukotriene B4: manufactured by Cayman Chemical Company, montelukast (montelukast sodium): manufactured by LG Life Sciences, zileuton: manufactured by Toronto Research Chemicals, Inc., nicotinic acid: manufactured by Wako Pure Chemical Industries, Ltd., glycyrrhizic acid (dipotassium glycyrrhizinate): manufactured by Wako Pure Chemical Industries, Ltd., pirfenidone: manufactured by TOCRIS bioscience, tranilast: manufactured by Wako Pure Chemical Industries, Ltd., famotidine: manufactured by Wako Pure Chemical Industries, Ltd., immepip (immepip dihydrobromide): manufactured by TOCRIS bioscience, proxyfan: manufactured by TOCRIS bioscience, azelastine (azelastine hydrochloride): manufactured by LKT Laboratories, Inc., cimetidine: manufactured by Wako Pure Chemical Industries, Ltd., 4-methylhistamine: manufactured by TOCRIS bioscience, olanzapine: manufactured by Wako Pure Chemical Industries, Ltd., yohimbine (yohimbine hydrochloride): manufactured by Wako Pure Chemical Industries, Ltd., acetylcholine (acetylcholine chloride): manufactured by Wako Pure Chemical Industries, Ltd., metergoline (metergoline phenylmethyl ester): manufactured by TOCRIS bioscience, clozapine: manufactured by Wako Pure Chemical Industries, Ltd., sumatriptan: manufactured by MYUNG IN PHARM. CO., LTD., zolmitriptan: manufactured by Cipla, tolvaptan: manufactured by Sigma-Aldrich, desmopressin: manufactured by Sigma-Aldrich, pilocarpine (pilocarpine hydrochloride): manufactured by Wako Pure Chemical Industries, Ltd., propranolol (propranolol hydrochloride): manufactured by Wako Pure Chemical Industries, Ltd., xylazine: manufactured by Wako Pure Chemical Industries, Ltd., novokinin: manufactured by Sigma-Aldrich, baclofen: manufactured by Tokyo Chemical Industry Co., Ltd., TRAP-6: manufactured by Bachem, adenosine diphosphate: manufactured by MP Biomedicals, somatostatin-14: manufactured by Bachem, GW405833: manufactured by Sigma-Aldrich, SEW2871: manufactured by Cayman Chemical Company, trimebutine (trimebutine maleate): manufactured by Tokyo Chemical Industry Co., Ltd., loperamide (loperamide hydrochloride): manufactured by Wako Pure Chemical Industries, Ltd., melatonin: manufactured by LKT Laboratories, Inc., biphenylindanone A: manufactured by Sigma-Aldrich, and L-AP4 (L-2-amino-4-phosphonobutyric acid): manufactured by Wako Pure Chemical Industries, Ltd., diphenhydramine (diphenhydramine hydrochloride): manufactured by Wako Pure Chemical Industries, Ltd., tamsulosin (tamsulosin hydrochloride): manufactured by Cipla, and oxybutynin (oxybutynin hydrochloride): manufactured by Sigma-Aldrich.
The antigen peptides, cellular immunity induction promoters, acids, additives and the others for preparing the tape preparation, liquid formulation for external use and injectable formulation were obtained from the same sources as described above.
Adhesives for tape preparations were prepared.
Under an inert gas atmosphere, 75 parts of 2-ethylhexyl acrylate, 22 parts of N-vinyl-2-pyrrolidone, 3 parts of acrylic acid and 0.2 part of azobisisobutyronitrile were solution polymerized at 60° C. in ethyl acetate to obtain acrylic adhesive A solution.
Under an inert gas atmosphere, 70 parts of 2-ethylhexyl acrylate, 25 parts of N-vinyl-2-pyrrolidone, 5 parts of N-(2-hydroxyethyl)acrylamide and 0.2 part of azobisisobutyronitrile were solution polymerized at 60° C. in ethyl acetate to obtain acrylic adhesive B solution.
24 parts of polyisobutylene (Oppanol B200, manufactured by BASF), 36 parts of polyisobutylene (Oppanol B12, manufactured by BASF) and 40 parts of an alicyclic petroleum resin (Arkon P-100, manufactured by Arakawa Chemical Industries, Ltd.) were dissolved in toluene to obtain PIB rubber adhesive solution.
60 parts of a styrene-isoprene-styrene block copolymer (SIS5002, manufactured by JSR Corporation), and 40 parts of an alicyclic petroleum resin (Arkon P-100, manufactured by Arakawa Chemical Industries, Ltd.) were dissolved in toluene to obtain SIS adhesive A solution.
30 parts of a styrene-isoprene-styrene block copolymer (SIS5002, manufactured by JSR Corporation), 30 parts of polyisobutylene (Oppanol B100, manufactured by BASF) and 40 parts of an alicyclic petroleum resin (Arkon P-100, manufactured by Arakawa Chemical Industries, Ltd.) were dissolved in toluene to obtain SIS-PIB adhesive A solution.
Tape preparations having the ingredients shown in the following Table 4 were manufactured. Specifically, Db126 antigen peptide, a cellular immunity induction promoter and, optionally, a skin permeability enhancer and/or a pharmacologically acceptable acid, an adhesive solution and an organic solvent (ethyl acetate, ethanol, toluene etc.) in the amounts described in Table 4 were blended, kneaded, and spread on a release liner so that the thickness of the layer after drying became about 80 μm, the organic solvent was removed by drying, and a support was stuck to the layer to prepare a tape preparation. The adhesive solution was blended so that the total amount of the ingredients and the adhesive after drying organic solvent became 100 parts by weight. Polyethylene terephthalate (PET) film (thickness 25 μm) was used as the support. Polyethylene terephthalate (PET) sheet (thickness 75 μm) treated with silicone was used as release liner. Thus obtained tape preparation was cut to give a piece of 0.7 cm2, and was adopted to the immunization test. The release liner was peeled just before the application of the tape preparation.
Using thus obtained tape preparation, mouse immunization test 2 was performed in the same manner as in the mouse immunization test 1. The preparation was applied once for 24 hours and the spleen was isolated 6 days after the completion of the application. Genetically modified mouse which can be used to evaluate the cellular immunity inducing ability of the HLA-A*0201 type MHC restricted peptide was used as model animal for immunological evaluation.
In Example 111, the skin was injured with microcutter (MICRO FEATHER No. 7330G, manufactured by FEATHER) before the application of the preparation.
In some groups, the cutaneous TSLP level after the application, transepidermal water loss before the application, and the skin permeability of Db126 antigen peptide and imiquimod were measured using C57BL/6 mouse in the same manner as conducted in the mouse immunization test 1.
The results of the immunization test, TSLP level and transepidermal water loss are shown in the following Table 4. In addition, the results of measurement of skin permeability are shown in Table 5.
Liquid formulations for external use having the ingredients shown in the following Table 6 were produced. Db126 antigen peptide, cellular immunity induction promoters other than helper peptide, and a helper peptide at the amounts described in Table 6, and 15 parts by weight of DMSO were blended, the base was added thereto to the total of 100 parts by weight. The blend was kneaded to obtain liquid formulation for external use. Propylene glycol (PG) and oleyl alcohol (OA) were mixed so that the weight ratio became 98:2 or 90:10 to give the base. A composite substrate in which cellulose non-woven fabric (0.8 cm2) was stuck to a central portion of an adhesive tape for fixation was prepared. The non-woven fabric portion of this composite substrate was impregnated with 67 μL of the prepared liquid formulation for external use, and this was used in the immunization test.
Using a liquid formulation for external use produced as described above, mouse immunization test was performed in the same manner as in the mouse immunization test 1. The dose was 67 μL as described above. The liquid formulation was applied once for 24 hours and the spleen was isolated 6 days after completion of the application. C57BL/6 was used in this test.
In some groups, the cutaneous TSLP level after the application and transepidermal water loss before the application were measured using C57BL/6 mouse in the same manner as conducted in the mouse immunization test 1.
The results of the immunization test, the TSLP level and transepidermal water loss are shown in the following Table 6.
Intradermal injectable formulations having the ingredients shown in the following Table 7 were prepared. Specifically, saline as the base was added to Db126 antigen peptide and Montanide ISA51VG (Freund Corporation) as an adjuvant at the amounts described in Table 7, to the total of 100 parts by weight, and the mixture was kneaded with a homogenizer to prepare emulsion-like injectable formulation.
Using an injectable produced as described above, mouse immunization test was performed in the same manner as in the mouse immunization test 1.30 μL of the injectable formulation was administered once to the back of mouse by intradermal injection and the spleen was isolated 6 days after the administration. Genetically modified mouse which can be used to evaluate the cellular immunity inducing ability of the HLA-A*0201 type MHC restricted peptide was used as model animal.
The results of the immunization test are shown in the following Table 7.
In the comparative Examples 10 to 14, the amount of the injected Db126 peptide was calculated as the intradermal introduction amount because the peptide was injected intradermally. In addition, mouse skin permeability test was performed with the preparation of Example 109, the amount of the peptide permeated into the skin for 24 hours was compared with the intradermally introduced amount of the peptide. The comparison of the intradermal introduction amount between injection and the tape preparation is shown in Table 8.
Seven days after final immunization, the spleen cells (target cell or control cell) were transplanted according to the following procedure, and then, the spleen was isolated after 18 hours. The % Specific Lysis was obtained by performing the FACS measurement.
Procedure 1. Collection of Spleen Cells of Naïve Mouse
Naive mouse that is the same kind mouse as that used in the immunization test was used. Spleen was isolated from the naïve mouse and mashed using a glass slide in a petri dish containing RPMI1640 medium. The mashed spleen was put into a 50 mL tube and centrifuged at 10° C. and 1100 rpm for 5 minutes. The supernatant was discarded. 20 mL of Lysis Buffer was added to the tube, followed by incubation at room temperature for 5 minutes. 20 mL of the medium was added to the tube and the tube was then centrifuged. The medium was added to the tube and the resultant was passed through a cell strainer to give spleen cell suspension.
Procedure 2. Labeling of the Spleen Cells with the Antigen
The spleen cells prepared in Procedure 1 were centrifuged at 10° C. and 1100 rpm for 5 minutes, the supernatant was discarded, and HBSS buffer was added to give cell suspension of 2×107 cells/mL. The cell suspension was dispensed into two 50 mL tubes, 100 μM of the antigen solution (the antigen was the same antigen used in the immunization test) was added to one of the tubes containing the cell solution so that the final concentration became 10 μM, to obtain a target cell. The cell in another tube was adopted as control. The cells in both tubes were incubated at 37° C. for 1 hour, centrifuged, the supernatant was discarded, and a medium was added.
Procedure 3. Labeling of the Spleen Cells with CFSE
The cell labelled with the antigen according to Procedure 2 was centrifuged, and 0.1% BSA-PBS was added to 1×107 cells/mL. To the target cell suspension was added 5 mM CFSE solution to give the final concentration of 10 μM, and to the control cell suspension was added 5 mM CFSE solution to give the final concentration of 1 μM, and the mixture was vortexed, followed by incubation at 37° C. for 10 minutes. Thereafter, centrifugation was performed, the supernatant was discarded, and the medium was added.
The cell labelled with CFSE according to Procedure 3 was centrifuged, the supernatant was discarded, and HBSS buffer was added to the cells to give cell suspension of 5×107 cells/mL. Equal amounts of the target cell suspension and the control cell suspension were mixed, and 200 μL aliquot of the mixture was introduced into each immunized mouse via orbital veins (transplanted cell number: 1×107 cells/animal).
Eighteen hours after the transplantation of the spleen cells, spleen of the mouse was isolated, and spleen cell suspension was prepared in the same manner as in Procedure 1. Thereafter, CFSE-positive cells were detected by FACS, and the ratio between CFSE high cells (target cells) and CFSE low cells (control cells) was obtained. The cytotoxic activity was calculated by the formula shown below. The obtained value can be used as an index showing the ability of the antigen specific killer cells induced by the immunization with the vaccine composition to attack specifically the cells that present the antigen in the living body. It was confirmed that the composition of the present invention can induce strong antigen-specific cellular immunity.
r=(% CFSE low cells)/(% CFSE high cells)
% Specific Lysis=(1−(r—non immunized/r—immunized))×100
The results of Comparative Example 1, Example 1 and Example 11 are shown in
The results of the mouse immunization test and the mouse skin permeability test of Examples 5 to 8 in which influence of physical irritation, was studied are shown in
The results of the mouse immunization test and the mouse skin permeability test of Examples 106 and 107 in which influence of chemical irritation (surfactant) was studied are shown in
The results of the mouse immunization test of Examples 109 and 111 in which influence of physical irritation was studied are shown in
The results of the mouse immunization test of Examples 139, 108, 141 and 142 in which the synergistic effect of imiquimod and loxoprofen Na was studied are shown in
In Table 1 and Table 4, the effect of the cellular immunity induction promoters in composition for transdermal administration comprising the WT1 peptide and/or modified WT1 peptide was evaluated. It was found that a cellular immunity induction promoter selected from TLR ligand, cyclic dinucleotide, helper peptide, immunomodulatory small molecule drug, cyclooxygenase inhibitor, prostaglandin receptor antagonist, prostaglandin receptor agonist, TSLP production inhibitor, adenylate cyclase inhibitor, omega-3 fatty acid, PPAR agonist, dopamine receptor antagonist, dopamine receptor agonist, histamine receptor agonist, histamine receptor antagonist, serotonin receptor agonist, serotonin receptor antagonist, vasopressin receptor antagonist, vasopressin receptor agonist, muscarine receptor antagonist, muscarine receptor agonist, adrenalin receptor antagonist, adrenalin receptor agonist, angiotensin receptor agonist, GABA receptor agonist, thrombin receptor agonist, opioid receptor agonist, ADP receptor agonist, leukotriene receptor antagonist, leukotriene receptor agonist, melatonin receptor agonist, somatostatin receptor agonist, cannabinoid receptor agonist, sphingosine-1 phosphate receptor agonist, metabotropic glutamate receptor agonist, phospholipase A2 inhibitor, TGF-beta production inhibitor, Th2 cytokine inhibitor and a combination of two or more of them are effective. Preferably, a cellular immunity induction promoter selected from TLR ligand, cyclic dinucleotide, immunomodulatory small molecule drug, cyclooxygenase inhibitor, prostaglandin receptor antagonist, prostaglandin receptor agonist, TSLP production inhibitor, adenylate cyclase inhibitor, omega-3 fatty acid, PPAR agonist, dopamine receptor antagonist, dopamine receptor agonist, histamine receptor agonist, histamine receptor antagonist, serotonin receptor agonist, serotonin receptor antagonist, vasopressin receptor antagonist, vasopressin receptor agonist, muscarine receptor antagonist, muscarine receptor agonist, adrenalin receptor antagonist, adrenalin receptor agonist, angiotensin receptor agonist, GABA receptor agonist, thrombin receptor agonist, opioid receptor agonist, ADP receptor agonist, leukotriene receptor antagonist, leukotriene receptor agonist, melatonin receptor agonist, somatostatin receptor agonist, cannabinoid receptor agonist, sphingosine-1 phosphate receptor agonist, metabotropic glutamate receptor agonist, phospholipase A2 inhibitor, TGF-beta production inhibitor, Th2 cytokine inhibitor and a combination of two or more of them, as well as a combination of helper peptide and the first cellular immunity induction promoter other than helper peptide were effective. More preferably, a first cellular immunity induction promoter selected from TLR ligand, cyclic dinucleotide, immunomodulatory small molecule drug, cyclooxygenase inhibitor, TSLP production inhibitor, prostaglandin receptor antagonist, prostaglandin receptor agonist, PPAR agonist, TGF-beta production inhibitor, histamine receptor agonist, histamine receptor antagonist, serotonin receptor agonist, serotonin receptor antagonist, muscarine receptor antagonist, adrenalin receptor antagonist, opioid receptor agonist, melatonin receptor agonist, metabotropic glutamate receptor agonist and a combination of two or more of them, as well as a combination of helper peptide and the first cellular immunity induction promoter other than helper peptide were effective.
As shown in Table 1, Table 4, Table 6 and Table 7, the transdermal administration of the cancer vaccine composition comprising the WT1 peptide and/or modified WT1 peptide can induce cellular immune response equivalent to or stronger than the immune response induced by injecting the antigen. Current Opinion in Immunology 2008, 20:211-220 reported results of clinical studies and confirmed that the WT1 vaccine was useful as cancer vaccine when administered by injection. The transdermal administration of the vaccine composition of the present invention could induce cellular immune response that is equivalent to or stronger than the immune response induced by injection in mice, and therefore, it is expected that the composition of the present invention can also effectively induce cellular immune response that is comparative to or stronger than the immune response induced by injection. The vaccine composition is a useful cancer vaccine.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2013-020906 | Feb 2013 | JP | national |
