Human TNF-α Protein

Tumor necrosis factor α (TNF-α), also known as TNF, TNFA or TNFSF2, is the prototypic cytokine of the TNF superfamily, and is a multifunctional molecule involved in the regulation of a wide spectrum of biological processes including cell proliferation, differentiation, apoptosis, lipid metabolism, and coagulation. Two receptors, TNF-R1 (TNF receptor type 1; CD120a; p55/60) and TNF-R2 (TNF receptor type 2; CD120b; p75/80), bind to TNF-α. TNF-α protein is produced mainly by macrophages, and large amounts of this cytokine are released in response to lipopolysaccharide, other bacterial products, and Interleukin-1 (IL-1) . TNF-α is involved in fighting against the tumorigenesis, thus, is regarded as a molecular insight in cancer treatment.

Measured in a cytotoxicity assay using L929 mouse fibrosarcoma cells in the presence of the metabolic inhibitor actinomycin D.The ED50 for this effect is typically 1.747 pg/mL. The specific activity of recombinant Human TNF-α is approximately >5.7 x 105 IU/mg

The product listed herein is for research use only and is not intended for use in human or clinical diagnosis. Suggested applications of our products are not recommendations to use our products in violation of any patent or as a license. We cannot be responsible for patent infringements or other violations that may occur with the use of this product.

Lyophilized Human TNF-α proteinshould be stored desiccated below -20°C. Upon reconstitution, the protein should be stored at 4°C between 2-7 days and for future use below -20°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA) . Please prevent freeze-thaw cycles.

Always centrifuge tubes before opening. It is recommended to reconstitute the lyophilized Human TNF-α protein in sterile ddH2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.