CUSABIO's rabbit TNFα ELISA kit is an in vitro enzyme-linked immunosorbent assay for the quantitative determination of TNFα concentrations in serum, plasma, tissue homogenates, and cell lysates. This assay exclusively recognizes rabbit TNFα. The quantitative sandwich ELISA technique of this kit is based on TNFα antibody-TNFα antigen interactions and an HRP colorimetric detection system to detect the levels of TNFα in samples. The intensity of the color is positively proportional to the amount of bound TNFα in the initial step.
TNFα, commonly referred to as TNF, is a pleiotropic cytokine that plays an essential role in the innate and adaptive immune systems. It is also involved in tissue regeneration, and repair, as well as the modulation of embryonic development, the sleep-wake cycle, lymph node follicle, and germinal center formation. TNF signals through TNFR1 and TNFR2, activate NF-κB and MAPK signaling pathways regulating cell proliferation, survival, differentiation, and apoptosis. Due to its pro-inflammatory properties, TNF is implicated in inflammatory diseases, such as rheumatoid arthritis, Crohn's disease, and psoriatic arthritis. Increased TNF expression has been found in various cancer types. Especially, in breast cancer, TNF is associated with enhanced tumor cell proliferation, higher malignancy grade, increased occurrence of metastasis, and generally poor prognosis for the patient.