Antigen-drug vehicle enabling transmucosal and transdermal administration, and method of inducing mucosal immunity and mucosal vaccine and DDS using the same
View Patent ↗Disclosed are an antigen-drug vehicle (AD vehicle) exerting a function of inducing the preferential and selective production of an antigen-specific secretory IgA antibody, local immunity or mucosal immunity; a method of inducing mucosal immunity, a mucosal vaccine and a preventive or a remedy for allergy using the above AD vehicle; and a transmucosal or transdermal DDS using the above vehicle.
1. A composition for inducing mucosal immunity against an influenza virus by promoting the production of an IgA antibody against the virus in a local mucosal membrane, comprising an influenza virus split antigen and an antigen-drug vehicle which is a complex consisting of:
a pulmonary surfactant protein B or a peptide consisting of the amino acid sequence of SEQ ID NO: 2, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 20,
a pulmonary surfactant protein C or a peptide consisting of the amino acid sequence of SEQ ID NO: 4, 9, 21 or 6, and
at least one lipid selected from the group consisting of phosphatidyl choline, dipalmitoyl phosphatidyl choline, phosphatidyl serine, dipalmitoyl glycerophosphocholine, diacyl glycerophosphoglycerol, phosphatidylglycerol, phosphatidyl inositol, phosphatidyl ethanolamine, phosphatidic acid, lauric acid, myristic acid, palmitic acid, stearic acid and oleic acid,
wherein the composition is suitable for nasal administration.
2. The composition according to claim 1 , wherein the induction of mucosal immunity is further made by promoting the production of TGF-β1 and Th2 type cytokine against the influenza virus in the local mucosal membrane.
3. A method of inducing mucosal immunity, which comprises administering the composition according to claim 1 , into a nasal cavity or upper respiratory tract of a subject in need thereof.
4. The method of inducing mucosal immunity according to claim 3 , wherein the induction of mucosal immunity is made by promoting the production of an IgA antibody in the local mucosal membrane.
5. The method of inducing mucosal immunity according to claim 3 , wherein the induction of mucosal immunity is made by promoting the production of TGF-β1 and Th2 type cytokine in the local mucosal membrane.