{"product_id":"recombinant-human-tnf-alpha-protein-bhp22200021","title":"Recombinant Human TNF alpha Protein","description":"\u003cdiv class=\"bhp-desc\"\u003e\n\u003cstyle\u003e.bhp-desc{font-size:16px;color:#1a1a1a;line-height:1.7}.bhp-desc h2{font-size:18px;font-weight:700;color:#003366;margin:24px 0 10px;padding-bottom:6px;border-bottom:2px solid #003366}.bhp-desc p{margin:0 0 12px}.bhp-desc .bhp-spec-table{width:100%;border-collapse:collapse;margin:12px 0 18px}.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}.bhp-desc .bhp-spec-table td{padding:8px 12px;vertical-align:top;border:1px solid #ccd9f0}.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}.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}.bhp-desc .bhp-app-wrap{overflow-x:auto}.bhp-desc .bhp-app-table{width:100%;border-collapse:collapse;margin:12px 0 18px;font-size:14px}.bhp-desc .bhp-app-table th{background:#e8f0fb;color:#003366;text-align:left;padding:8px 10px;border:1px solid #ccd9f0;vertical-align:top}.bhp-desc .bhp-app-table td{padding:8px 10px;border:1px solid #ccd9f0;vertical-align:top}.bhp-desc .bhp-cat-pill{display:inline-block;background:#003366;color:#fff;border-radius:20px;padding:3px 12px;font-size:13px;margin-bottom:10px}\u003c\/style\u003e\n\u003cspan class=\"bhp-cat-pill\"\u003eRecombinant Protein · Cytokine\u003c\/span\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRecombinant Human TNF alpha Protein\u003c\/strong\u003e (TNF-α) is a tag-free, full-length human TNF-α expressed in \u003cstrong\u003ehuman cells\u003c\/strong\u003e and supplied as a glycosylated homotrimer. It is produced in an animal-free, xeno-free format and lyophilized from a 0.2 µm-filtered PBS solution without carrier protein, with purity \u0026gt;95% by SDS-PAGE and endotoxin \u0026lt;0.5 EU\/µg.\u003c\/p\u003e\n\u003cp\u003eTNF-α is a potent pro-inflammatory cytokine used to study inflammation, activation of immune cells and cell death, particularly of tumor cells. Its activity is confirmed by cytotoxicity toward L-929 cells in the presence of actinomycin D.\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"bhp-qc-badge\"\u003eExpression system: Human cells · Tag-free · Animal-free\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eScientific Background\u003c\/h2\u003e\n\u003cp\u003eTumor necrosis factor alpha (TNF-α) signals through the receptors TNFRSF1A (TNFR1) and TNFRSF1B. It is secreted mainly by macrophages and is also produced by monocytes, keratinocytes and various tumor cells.\u003c\/p\u003e\n\u003cp\u003eTNF-α induces fever, either directly or through release of interleukin-1, and has been linked to cachexia. Under certain conditions it can stimulate cell proliferation and induce differentiation, and it can impair regulatory T cell (Treg) function in rheumatoid arthritis through FOXP3 dephosphorylation.\u003c\/p\u003e\n\u003ch2\u003eResearch Applications\u003c\/h2\u003e\n\u003cp\u003eRecombinant human TNF-α is a pro-inflammatory cytokine for immunology and cell-death research.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInflammation research on pro-inflammatory signaling.\u003c\/li\u003e\n\u003cli\u003eImmune-response studies, including activation of immune cells.\u003c\/li\u003e\n\u003cli\u003eCell-death research, particularly in tumor cells.\u003c\/li\u003e\n\u003cli\u003eDrug-discovery studies in inflammatory disease and cancer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProtein Specifications\u003c\/h2\u003e\n\u003ctable class=\"bhp-spec-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eTarget\u003c\/th\u003e\n\u003ctd\u003eTNF alpha\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAlternative names\u003c\/th\u003e\n\u003ctd\u003eTNF-α; TNFα\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecies\u003c\/th\u003e\n\u003ctd\u003eHuman\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExpression system\u003c\/th\u003e\n\u003ctd\u003eHuman cells\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStructure\u003c\/th\u003e\n\u003ctd\u003eGlycosylated homotrimer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTag\u003c\/th\u003e\n\u003ctd\u003eTag-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAnimal origin\u003c\/th\u003e\n\u003ctd\u003eAnimal-free \/ xeno-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMolecular weight\u003c\/th\u003e\n\u003ctd\u003e17 kDa. Refer to the lot-specific Certificate of Analysis (CoA) for lot data.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePurity\u003c\/th\u003e\n\u003ctd\u003e\u0026gt;95% by SDS-PAGE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEndotoxin level\u003c\/th\u003e\n\u003ctd\u003e\u0026lt;0.5 EU\/µg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFormulation\u003c\/th\u003e\n\u003ctd\u003eLyophilized from a 0.2 µm-filtered solution in PBS without carrier protein\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eForm\u003c\/th\u003e\n\u003ctd\u003eLyophilized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBiological activity\u003c\/th\u003e\n\u003ctd\u003eCytotoxicity in L-929 cells in the presence of actinomycin D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplications\u003c\/th\u003e\n\u003ctd\u003eStem Cell Differentiation, Immunotherapy, Cytotoxicity Assay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eBiological Activity \u0026amp; Quality Control\u003c\/h2\u003e\n\u003cp\u003eBiological activity is measured by cytotoxicity in L-929 cells in the presence of actinomycin D.\u003c\/p\u003e\n\u003cp\u003eLot-specific activity and purity data are provided on the Certificate of Analysis (CoA), available from BioHippo on request.\u003c\/p\u003e\n\u003ch2\u003eReconstitution\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eBriefly centrifuge the vial before opening.\u003c\/li\u003e\n\u003cli\u003eReconstitute in sterile PBS containing 0.1% endotoxin-free recombinant human serum albumin.\u003c\/li\u003e\n\u003cli\u003eAvoid repeated freeze–thaw cycles; a manual defrost freezer is recommended for storage.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eStorage \u0026amp; Shipping\u003c\/h2\u003e\n\u003ctable class=\"bhp-spec-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003eAs supplied: −20°C to −80°C for up to 12 months from receipt. After reconstitution: 2°C to 8°C for up to 1 month, or −20°C to −80°C for up to 3 months, under sterile conditions. Avoid repeated freeze–thaw cycles.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShipping\u003c\/th\u003e\n\u003ctd\u003ePlease contact us to confirm shipping conditions for this product.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eSelected References\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003ePennica D, Nedwin GE, Hayflick JS, et al. (1984) Human tumour necrosis factor: precursor structure, expression and homology to lymphotoxin. Nature 312:724-729. \u003ca href=\"https:\/\/doi.org\/10.1038\/312724a0\" target=\"_blank\" rel=\"noopener\"\u003e10.1038\/312724a0\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eNie H, Zheng Y, Li R, et al. (2013) Phosphorylation of FOXP3 controls regulatory T cell function and is inhibited by TNF-α in rheumatoid arthritis. Nat Med 19:322-328. \u003ca href=\"https:\/\/doi.org\/10.1038\/nm.3085\" target=\"_blank\" rel=\"noopener\"\u003e10.1038\/nm.3085\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eFriedmann E, Hauben E, Maylandt K, et al. (2006) SPPL2a and SPPL2b promote intramembrane proteolysis of TNFalpha in activated dendritic cells to trigger IL-12 production. Nat Cell Biol 8:843-848. \u003ca href=\"https:\/\/doi.org\/10.1038\/ncb1440\" target=\"_blank\" rel=\"noopener\"\u003e10.1038\/ncb1440\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eSafety \u0026amp; Handling\u003c\/h2\u003e\n\u003cdiv class=\"bhp-warning-box\"\u003e\u003cp style=\"margin:0\"\u003eHandle as a laboratory reagent and consult the linked SDS before use. Avoid repeated freeze–thaw cycles of the reconstituted protein.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003eFor research use only. Not for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"StemImmune LLC","offers":[{"title":"10 ug","offer_id":67641421889901,"sku":"HIM-TNa-0010","price":90.0,"currency_code":"USD","in_stock":true},{"title":"100 ug","offer_id":67641431916909,"sku":"HIM-TNa-0100","price":644.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/TNFa-500x500.png?v=1791572822","url":"https:\/\/www.ebiohippo.com\/products\/recombinant-human-tnf-alpha-protein-bhp22200021","provider":"BioHippo","version":"1.0","type":"link"}