T-Cells are a subset of lymphocytes that play a large role in the immune response. The TCR (T-Cell Receptor) is a complex of integral membrane proteins that participates in the activation of T-Cells in response to the presentation of antigen. Stimulation of TCR is triggered by MHC (Major Histocompatibility Complex) molecules on Antigen Presenting Cells that present antigen peptides to TCR complexes and induce a series of intracellular signaling cascades. Engagement of the TCR initiates positive (signal-enhancing) and negati...
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