Proteoliposomes as drug carriers
US4873089A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1988 |
| Grant date | Oct 10, 1989 |
| Priority date | — |
| Expiry date | Mar 21, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/1277
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process for the preparation of proteoliposomes comprising: (1) mixing a fusogen with lipid components used to form unilamellar lipid vesicles to thereby form fusogenic unilamellar lipid vesicles; and (2) activating the fusogenic unilamellar lipid vesicles in the presence of integral membrane proteins to thereby form fusogenic proteoliposomes, wherein the fusogenic unilamellar lipid vesicles are activated by lowering the temperature of the mixture of fusogenic unilamellar lipid vesicles and integral membrane proteins to at or below the phase transition temperature of the fusogenic unilamellar lipid vesicles. A proteoliposome, a medicament comprising the proteoliposome and a drug or other biologically or physiologically active agent, and a method of treatment comprising administering the medicament to an afflicted host are also disclosed. The proteoliposomes are larger than conventional proteoliposomes and are more stable than conventional unilamellar lipid vesicles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.