Liposome compositions

A - Human Necessities – 61 – K

Patent

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Details

A61K 9/127 (2006.01) A61K 31/41 (2006.01) A61K 31/663 (2006.01)

Patent

CA 2620400

A method of liposome-based therapy for a mammalian subject is disclosed. The method uses liposomes and/or liposomes with outer surfaces that contain an affinity moiety effective to bind specifically to a biological surface at which the therapy is aimed, and a hydrophilic polymer coating. The hydrophilic polymer coating is made up of polymer chains covalently linked to surface lipid components . After a desired liposome biodistribution is achieved, the affinity agent binds to the target surface and helps internalize the liposomes.

L'invention concerne une méthode destinée au traitement à base de liposomes d'un sujet mammifère. Cette méthode consiste à utiliser des liposomes et/ou des liposomes comportant des surfaces externes contenant une fraction d'affinité conçue pour se fixer de manière spécifique à une surface biologique visée par la thérapie, et un revêtement polymérique hydrophile. Ce revêtement polymérique hydrophile est constitué de chaînes polymériques liées par covalence à des composants lipidiques de surface. Une fois la biodistribution liposomale désirée obtenue, l'agent d'affinité se fixe à la surface cible et contribue à l'absorption des liposomes.

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