The role of tetraspanin CD63 in antigen presentation via MHC class II

Abstract excerpt

Interactions between MHC class II (MHC II)-positive APCs and CD4(+) T cells are central to adaptive immune responses. Using an Epstein-Barr virus (EBV)-transformed B lymphoblastoid cell line (LCL) as MHC II-positive APCs and CD4(+) T-cell clones specific for two endogenously expressed EBV antigens, we found that shRNA knockdown of the tetraspanin protein CD63 in LCL cells consistently led to increased CD4(+)...

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