The induction of T-cell responses involves the recognition of extrinsic antigens in association with antigens of the major histocompatibility complex (MHC). The present results demonstrate that the lateralized control exerted by the brain neocortex on T-cell activities extends to the expression of MHC antigens, yet differently on spleen or lymph node T cells. This study also shows that the neocortex influences the changes induced by an immunopotentiator, sodium diethyldithiocarbamate (imuthiol), on the MHC antigen content on mouse T cell-surface.
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