{"product_id":"cst-14520v1","title":"CST,  14520V1, PathScan® RP Total B7-H4 Sandwich ELISA Kit","description":"ELISA Kit for studying VTCN1 in the research area.\n\n\u003cb\u003eProtocol\u003c\/b\u003e\nAvailable protocols: ELISA+\n\u003cb\u003eSpecificity \/ Sensitivity\u003c\/b\u003e\nPathScan\nSpecies Reactivity: Human\n\u003cb\u003eBackground\u003c\/b\u003e\nB7 homolog 4 (B7-H4, VTCN1) is a member of the B7 family of cell surface ligands that regulate T cell activation and immune responses (1-3). B7-H4 protein contains two extracellular Ig-like V-type domains, a transmembrane domain, and a short, two amino acid intracellular domain (3). The B7-H4 protein is shown to inhibit T cell activation, proliferation, and cytokine production (1,4,5). Although B7-H4 mRNA is widely expressed, B7-H4 protein is restricted to antigen-presenting cells and B cells (1). The B7-H4 protein is also found in several tumor types, including ovarian cancer and breast cancer (6). Research studies indicate that B7-H4 protein is present on the surface of ovarian tumor cells, and that targeted inhibition of B7-H4 using recombinant antibodies restores T cell activation pathways. These studies suggest some potential therapeutic value in blocking B7-H4 function and restoring T cell function in cancer patients (7,8).\n\u003cb\u003eAlternate Names\u003c\/b\u003e\nB7 family member, H4; B7 homolog 4; B7 superfamily member 1; B7-H4; B7h.5; B7H4; B7S1; B7X; FLJ22418; Immune costimulatory protein B7-H4; PRO1291; Protein B7S1; RP11-229A19.4; T cell costimulatory molecule B7x; T-cell costimulatory molecule B7x; V-set domain containing T cell activation inhibitor 1; V-set domain-containing T-cell activation inhibitor 1; VCTN1; VTCN1\n\n\u003cb\u003eSpecification\u003c\/b\u003e\n\nREACTIVITY: H","brand":"CST","offers":[{"title":"Default Title","offer_id":46800578117801,"sku":"14520V1","price":0.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/iright.com\/products\/cst-14520v1","provider":"Iright","version":"1.0","type":"link"}