Human TGF-b2 Elisa kit
Transforming growth factor-β (TGF-β) belongs to a family of dimeric 25 kDa polypeptides that are ubiquitously distributed in tissues and synthesized by many different cells. Three isoforms of transforming Growth Factorβ (TGF-beta1, beta-2 and beta-3) exist in mammals. They play critical roles in growth regulation and development. Each isoform is encoded by a unique gene on different chromosomes. All three of these growth factors are secreted by most cell types, generally in a latent form, requiring activation before they can exert biological activity. The TGF-betas possess three major activities: they inhibit proliferation of most cells, but can stimulate the growth of some mesechymal cells; they exert immunosuppressive effects and they enhance the formation of extracellular matrix. Two types of membrane receptors possessing kinase activity are involved in signal transduction. The TGF-betas are involved in wound repair processes and in starting inflammatory reaction and then in the resolution through chemotactic attraction of inflammatory cells and fibroblast.
An anti-TGF-β2 coating antibody is adsorbed onto microwells.
TGF-β2 present in the sample or standard binds to antibodies adsorbed to the microwells. Following incubation a monoclonal anti-TGF-β2 antibody conjugated to biotin is added and binds to TGF-β2 captured by the first antibody.
Following incubation unbound monoclonal anti-TGF-β2 biotin is removed during a wash step.
Streptavidin-HRP is added and binds to the biotinylated TGFβ2. After incubation and a wash step a substrate solution reactive with HRP is added to the wells