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Immunomethods. 1994 Jun;4(3):223-8.

Endocytosis and presentation of liposome-associated antigens by B cells.

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Centre d'Immunologie INSERM-CNRS de Marseille-Luminy, France.


B cells have limited endocytic capacity and are reported to endocytose and present liposome-encapsulated antigens poorly. B cells also endocytose soluble antigens poorly, except those for which their surface immunoglobulin is specific, which are taken up and presented efficiently. We present results indicating that, in vitro, B cells endocytose small liposomes bearing antigen with affinity for their surface immunoglobulin. Antigen encapsulated in liposomes targeted by antibody specific for surface immunoglobulin is presented to T cells as efficiently as specific antigen in soluble form. These studies provide a rational basis for the design of liposomes optimized to stimulate T-dependent B-cell responses.

[Indexed for MEDLINE]

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