Description
GITR (glucocorticoid-induced tumor necrosis factor receptor) also known as TNFRSF18, is a surface receptor molecule that has been shown to be involved in inhibiting the suppressive activity of T-regulatory cells and extending the survival of T-effector cells.1 GITR is involved in the regulation of T-cell receptor mediated cell death. Constitutive expression of a transfected GITR gene induces resistance to apoptosis induced by anti CD3 monoclonal antibodies. GITR ligand interferes with the suppressor activity of CD4(+) CD25(+) regulatory T-cells.2