Liposomal vaccine
First Claim
1. A liposomal vaccine formulation comprising an immunogenic protein substance and a liposome-forming phospholipid in an ethanolic saline comprising from about 1% to about 10% ethanol by volume.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention provides liposomal vehicles for encapsulating relatively high levels of immunogenic protein substances including immunogens directed against hormones and hormone receptors, such as gastrin and gonadotropin releasing hormone and their receptors. The liposome encapsulating large amounts of immunogens can be injected parenterally to induce effective immune responses without exhibiting significant adverse tissue reactogenicity. Methods for production of the liposomal vaccines and methods of their administration for treatment of diseases and conditions associated with the cognate hormones are also provided.
-
Citations
43 Claims
- 1. A liposomal vaccine formulation comprising an immunogenic protein substance and a liposome-forming phospholipid in an ethanolic saline comprising from about 1% to about 10% ethanol by volume.
- 29. A method of treatment of a gastrointestinal disease or disorder comprising administering to a patient in need thereof an effective amount of a liposomal vaccine formulation comprising an immunomimic peptide having the sequence of gastrin G17, gastrin G34, or fragments thereof, and a liposome-forming phospholipid in an ethanolic saline comprising from about 1% to about 10% ethanol by volume.
-
38. A method of preparing a liposomal vaccine formulation comprising:
-
(a) providing a liposome-forming phospholipid in an organic solvent and an aqueous solution comprising an immunogenic protein substance, wherein the weight ratio of liposome-forming phospholipid to immunogenic protein substance is between about 50;
1 and about 1000;
1;
(b) mixing the organic solvent containing the liposome-forming phospholipid and the aqueous solution comprising the immunogenic protein substance to form an emulsion;
(c) removing the organic solvent from to form a gel-like mixture; and
(d) hydrating the gel-like mixture with ethanolic saline comprising from about 1% to about 10% ethanol by volume. - View Dependent Claims (39, 40, 41, 42)
-
-
43. A pharmaceutical composition comprising a liposomal vaccine formulation comprising an immunogenic protein substance and a liposome-forming phospholipid in an ethanolic saline comprising from about 1% to about 10% ethanol by volume.
Specification