{"product_id":"growth-arrested-nk-feeder-cells-bhc18200328","title":"Growth-Arrested NK Feeder Cells","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\u003eNK (natural killer) cells are part of the innate immune system. They function in a histocompatibility complex-independent mode and derive from the hematopoietic lineage. They are the first line of defense against cancer. Expression of marker CD56 correlates with NK cell functionality: the CD56bright subset accounts for about 5% of the population and is less cytotoxic than the CD56dim subset. Cytotoxicity can happen by the release of perforin and granzyme, while activation by KARs (killer activating receptors) leads to release of Fas Ligand, TRAIL (TNF-related apoptosis-inducing ligand) and TNFα (tumor necrosis factor-alpha). In a suppressive tumor microenvironment, NK cells can become inhibited and unable to fight cancer cells. Several clinical trials have focused on using ex vivo generated NK cells alone or in combination with other approaches. NK cells can be generated ex vivo from peripheral blood, umbilical cord blood, iPS cells or immortalized NK cell lines. The ability to generate a number of pure cells high enough for human dosage often requires the use of growth factors such as IL-2 (interleukin 2) or IL-15, and feeder cells. The use of NK cells or CAR (chimeric antigen receptor)-NK cells is an expanding area holding great promise in cancer therapy.\u003c\/p\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"bhp-cat-pill\"\u003eImmunotherapy\u003c\/span\u003e\n\u003cp\u003eGrowth-Arrested NK Feeder Cells are suitable for the ex vivo culture and expansion of human natural killer (NK) cells. Growth-Arrested NK Feeder Cells are K562 cells engineered to express membrane bound IL-21, and other components, to drive the robust activation and expansion of NK cells.\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\u003eK562\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHost Species\u003c\/th\u003e\n\u003ctd\u003eHuman\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 1 x 10\u003csup\u003e6\u003c\/sup\u003e cells\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\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\u003eNo\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 detailed troubleshooting instructions. For all further questions, please email support@bpsbioscience.com.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BPS Bioscience","offers":[{"title":"1 million x 5","offer_id":53322324017517,"sku":"78912-1","price":435.0,"currency_code":"USD","in_stock":true},{"title":"2 million x 5","offer_id":53322336305517,"sku":"78912-2","price":605.0,"currency_code":"USD","in_stock":true},{"title":"2 million x 10","offer_id":53322336338285,"sku":"78912-3","price":1095.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/78912-1.png?v=1778636473","url":"https:\/\/www.ebiohippo.com\/products\/growth-arrested-nk-feeder-cells-bhc18200328","provider":"BioHippo","version":"1.0","type":"link"}