{"product_id":"tcr-activator-fcgr2b-cho-cell-line-bhc18200138","title":"TCR Activator\/FcGR2B CHO Cell Line","description":"\u003cstyle\u003e\n.bhp-desc{font-size:16px;color:#1a1a1a;line-height:1.7}\n.bhp-desc h2{font-size:18px;font-weight:700;color:#003366;margin:24px 0 10px;padding-bottom:6px;border-bottom:2px solid #003366}\n.bhp-desc p{margin:0 0 12px}\n.bhp-desc .bhp-spec-table{width:100%;border-collapse:collapse;margin:12px 0 18px}\n.bhp-desc .bhp-spec-table tr:nth-child(even) th{background:#dce8fb}\n.bhp-desc .bhp-spec-table tr:nth-child(even) td{background:#f0f6ff}\n.bhp-desc .bhp-spec-table th{width:36%;text-align:left;padding:8px 12px;background:#e8f0fb;color:#003366;font-weight:600;vertical-align:top;border:1px solid #ccd9f0}\n.bhp-desc .bhp-spec-table td{padding:8px 12px;vertical-align:top;border:1px solid #ccd9f0}\n.bhp-desc .bhp-qc-badge{display:inline-block;background:#e6f4ea;color:#1a7a3c;border:1px solid #a8d5b5;border-radius:4px;padding:6px 14px;font-size:14px;font-weight:600;margin-bottom:10px}\n.bhp-desc .bhp-warning-box{background:#fff8e6;border-left:4px solid #e6a817;padding:10px 14px;margin:10px 0 14px;border-radius:0 4px 4px 0}\n.bhp-desc .bhp-license-box{background:#f5f5f5;border:1px solid #ddd;border-radius:4px;padding:12px 16px;font-size:14px;color:#444;margin:10px 0 14px}\n.bhp-desc .bhp-regulatory-row{display:flex;gap:16px;flex-wrap:wrap;margin:6px 0 10px}\n.bhp-desc .bhp-reg-item{background:#f0f6ff;border:1px solid #ccd9f0;border-radius:4px;padding:6px 12px;font-size:14px}\n.bhp-desc .bhp-reg-item strong{color:#003366;display:block;font-size:12px;text-transform:uppercase;letter-spacing:.5px}\n.bhp-desc .bhp-cat-pill{display:inline-block;background:#003366;color:#fff;border-radius:20px;padding:3px 12px;font-size:13px;margin-bottom:10px}\n\u003c\/style\u003e\n\u003cdiv class=\"bhp-desc\"\u003e\n\u003ch2\u003eScientific Background\u003c\/h2\u003e\n\u003cp\u003eFcGR2B (also known as CD32B), is a receptor for the Fc region of immunoglobulin G (IgG) and is known as an immune antibody checkpoint. The two major forms of FcGR2B, FcGR2B1 and FcGR2B2, arise from either the inclusion or exclusion (respectively) of exon C1 via mRNA splicing, resulting in differing cell type-specific expression and function. Presence of the C1 sequence in isoform 1, which is highly expressed at the surface of B cells, tethers the receptor at the membrane and dramatically increases its half-life at the cell surface. Absence of C1 in isoform 2, expressed in myeloid cells, triggers rapid internalization of the receptor upon ligand binding. FcGR2B induces the phagocytosis of aggregated immunoglobulins. The receptor is also expressed in airways and in liver endothelial cells, where it may act as a \"sink\" for the removal of IgG immune complexes. FcGR2B1 operates as a negative regulator of signals induced by antibodies bound to antigens at the surface of cells. Although it acts in concert with dozens of activating receptors, it is the only known negative regulator of B Cell Receptor (BCR)-induced activation of B cells. Thus, the biological function of FcGR2B1 is to tame the antibody-dependent inflammatory response and to clear the circulation of spent immune complexes. Defects in FcGR2B1 signaling lead to overt inflammation and are involved in autoimmune diseases. In addition, FcGR2B interferes with the efficacy of therapeutic antibodies as it accelerates antibody depletion and decreases B cell responses and antibody production. On the other hand, FcGR2B contributes to the anti-tumor response to antibody checkpoint therapy by boosting CD+ T cells through cross-linking of antibodies directed at stimulatory checkpoints expressed on immune cells such as 4-1BB, OX40, CD40 and GITR. Therefore, FcGR2B is an important immunotherapy target, both as a direct target for the treatment of B-cell malignancies and in combination with clinically relevant therapeutic monoclonal antibodies to overcome FcGR2B -mediated resistance.\u003c\/p\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"bhp-cat-pill\"\u003eImmunotherapy\u003c\/span\u003e\n\u003cp\u003eRecombinant clonal CHO-K1 cells stably expressing a membrane bound, engineered TCR (T-cell receptor) activator and human FcGR2B (Fc gamma receptor IIb, NM #004001). The cells were generated from the TCR Activator CHO Cell Line (BPS Bioscience #60539).\u003c\/p\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003ctable class=\"bhp-spec-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eHost Cell Line\u003c\/th\u003e\n\u003ctd\u003eCHO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHost Species\u003c\/th\u003e\n\u003ctd\u003eHamster\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTransfection Method\u003c\/th\u003e\n\u003ctd\u003eLentivirus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupplied As\u003c\/th\u003e\n\u003ctd\u003eEach vial contains 2 x 10\u003csup\u003e6\u003c\/sup\u003e cells in 1 ml of cell freezing medium (BPS Bioscience, #79796)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHarmonized Tariff Code\u003c\/th\u003e\n\u003ctd\u003e3002-5900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eQuality Control \u0026amp; Validation\u003c\/h2\u003e\n\u003cspan class=\"bhp-qc-badge\"\u003e✓ Mycoplasma-Tested\u003c\/span\u003e\n\u003cp\u003eThe cell line has been screened to confirm the absence of Mycoplasma species.\u003c\/p\u003e\n\u003ch2\u003eSafety \u0026amp; Handling\u003c\/h2\u003e\n\u003cdiv class=\"bhp-warning-box\"\u003e\n\u003cp style=\"margin:0 0 4px\"\u003e⚠ Avoid freeze\/thaw cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eRegulatory Information\u003c\/h2\u003e\n\u003cdiv class=\"bhp-regulatory-row\"\u003e\n\u003cdiv class=\"bhp-reg-item\"\u003e\n\u003cstrong\u003eLicense Required\u003c\/strong\u003eYes\u003c\/div\u003e\n\u003cdiv class=\"bhp-reg-item\"\u003e\n\u003cstrong\u003eLiving Modified Organism\u003c\/strong\u003eYes\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eLicense Disclosure\u003c\/h2\u003e\n\u003cdiv class=\"bhp-license-box\"\u003eVisit bpsbioscience.com\/license for the label license and other key information about this product. Troubleshooting Guide: Visit bpsbioscience.com\/cell-line-faq. For all further questions, please email support@bpsbioscience.com.\u003c\/div\u003e\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\n\u003cp\u003eRelated Products: Cat. #60188, 60690, 60184, 60186\u003c\/p\u003e\n\u003cp\u003eRequired Accessories: Cat. #60186,60188,60184,79796\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BPS Bioscience","offers":[{"title":"2 Vials","offer_id":53322314416493,"sku":"78436","price":10855.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/78436_2.png?v=1778636460","url":"https:\/\/www.ebiohippo.com\/products\/tcr-activator-fcgr2b-cho-cell-line-bhc18200138","provider":"BioHippo","version":"1.0","type":"link"}