T lymphocyte proliferation inhibition

T lymphocyte proliferation inhibition refers to the suppression of the ability of T cells to divide and expand in response to antigenic stimulation or mitogens. This process can be mediated by various factors including immunosuppressive drugs (e.g., rapamycin[2]), regulatory cytokines (e.g., TGF-β[4]), metabolic enzymes like indoleamine 2,3-dioxygenase (IDO)[3], or regulatory cell populations such as regulatory T cells[4], bone marrow stromal cells[1], macrophages[3], or specialized glial cells[6]. While inhibition of T cell proliferation is crucial for maintaining immune tolerance and preventing autoimmune disease, excessive inhibition can cause immunodeficiency and a predisposition to cancer and infections.

Other names

suppression of T cell proliferationT cell inhibitionT lymphocyte proliferation suppression

Drugs suppress T cell proliferation via several mechanisms, including: mTOR inhibition (rapamycin); Calcineurin inhibition (tacrolimus, cyclosporine); Cytokine suppression; Tryptophan catabolism (by induction of indoleamine 2,3-dioxygenase, IDO); and Induction of regulatory T cells (Tregs, via TGF-β or IL-10 secretion).