Distinct roles for B7 costimulation in contact hypersensitivity and humoral immune responses to epicutaneous antigen.


Productive interactions between B7-1 and B7-2 costimulatory molecules on dendritic cells (DC) and CD28 on T cells are thought to be critical for successful antigen presentation. Epicutaneous application of haptens induces both contact hypersensitivity (CHS), an inflammatory cutaneous response mediated by CD8+ T cells, and an anti-hapten antibody response… (More)


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