Methods for inducing mucosal immune responses
US6630455B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 13, 1995 |
| Grant date | Oct 7, 2003 |
| Priority date | — |
| Expiry date | Jan 13, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2740/16134
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides a method of inducing a mucosal immune response in a subject, comprising administering to the mucosa of the subject an amount of antigen-encoding DNA effective to induce a mucosal immune response complexed to a transfection-facilitating lipospermine or a lipospermidine. In the method of inducing a mucosal immune response, the antigen-encoding DNA can encode an antigen that is expressed on the surface of infected cells during the course of infection. DNA encoding the envelope glycoproteins of viral pathogens is used in the present method. Lipospermines and lipospermidines are bifunctional molecules consisting of one or more hydrophobic chains covalently linked to a cationic grouping in which there is coordination of three or more amide hydrogens with a phosphate oxygen of the DNA chain forming an ionic charge complex. One preferred example of a lipospermine is DOGS (droctadecylamidoglycylspermine). The invention also provides a composition, comprising an amount of DNA encoding an envelope antigen or envelope-associated antigen of a pathogen complexed to a lipospermine. More specifically, the invention provides a composition, comprising an amount of DNA encoding…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.