Antigen vector in the form of multilamellar vesicle and composition containing antigen encapsulated in said vesicle

摘要

The invention concerns an antigen vector, in particular a protein antigen, consisting of a dispersion of multilamellar vesicles within which said antigen is at least partially encapsulated, said vesicles consisting of two layers comprising at least a surfactant, said two layers being concentric and providing said vesicles with an onion-like structure. The invention also concerns compositions containing at least an antigen against which it is desired to produce antibodies, said antigen being partially encapsulated in such a vector. The invention further concerns the method for preparing said compositions.