B7h4 antibody, B7s1 antibody, B7x antibody, BC032925 antibody, B7-H4 antibody, B7H4 antibody, B7S1 antibody, B7X antibody, B7h.5 antibody, PRO1291 antibody, VCTN1 antibody, RGD1311204 antibody, V set domain containing T cell activation inhibitor 1 L homeolog antibody, V-set domain containing T cell activation inhibitor 1 antibody, V-set domain containing T-cell activation inhibitor 1 antibody, V set domain containing T cell activation inhibitor 1 antibody, vtcn1.L antibody, VTCN1 antibody, vtcn1 antibody, Vtcn1 antibody
Background
B7-H4 is a costimulatory protein which is reported to function as a negative regulator of T-cell mediated immunity. Although B7-H4 binds an unknown receptor, it is thought to deliver an inhibitory signal to T-cells preventing their proliferation, cell cycle progression and interleukin-2 production. B7-H4 deficient mice are only minimally affected, suggesting B7-H4 is important in the fine tuning of the T-cell mediated immune response. B7-H4 is expressed on activated T-cells, B-cells, monocytes and dendritic cells. Aberrant expression has been associated with cancers of the lung, breast and ovary in humans. B7-H4 could be a useful prognostic marker in Renal Cell Carcinoma (RCC).Synonyms: B7-H4, B7S1, B7h.5, B7x, UNQ659/PRO1291, V-set domain-containing T-cell activation inhibitor 1