بنام خداي زيبائيها. Major Histocompatibility complex OR. MHC. MHC. The principal function of T cells are : Defense against intracellular microbes Activation of other cells(B cells ,Macrophages ) peptide recognition by T and B cells is different.
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Defense against intracellular microbes
Activation of other cells(B cells ,Macrophages )
B cells recognize soluble as well as cell associated Ags
In contrast ,T cells recognize peptide which is displaying only by APC in associated with MHC proteins.