Fibrinogen-coated liposomes
First Claim
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1. A liposome wherein a hemostatically effective amount of a C8 -C20 acylated fibrinogen is covalently incorporated into the lipid bilayer of said liposome.
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Abstract
A method for preparing fibrinogen-coated liposomes is disclosed. In this process, fibrinogen and an acylating agent are reacted in the presence of a dispersion of liposomes under specifically defined reaction conditions. The liposomes formed using this process, pharmaceutical compositions containing those liposomes, and the methods of clotting blood and delivering pharmaceutically-active agents and/or other chemicals utilizing those pharmaceutical compositions are also disclosed.
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36 Claims
- 1. A liposome wherein a hemostatically effective amount of a C8 -C20 acylated fibrinogen is covalently incorporated into the lipid bilayer of said liposome.
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22. A method of preparing fibrinogen-coated liposomes comprising reacting fibrinogen and an acylating agent in the presence of a dispersion of liposomes at a buffered pH of from about 6.5 to about 8.5 and a temperature of from about 0°
- C. to about 50°
C., wherein the molar ratio of said acylating agent to said fibrinogen is from about 1;
1 to about 5,000;
1, and there is sufficient fibrinogen in the reaction to form a film on the surface of said liposomes. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
- C. to about 50°
Specification