TGF-β2

Transforming growth factor-beta 2 (TGF-β2), an extracellular glycosylated protein, is a member of the TGF-β superfamily. TGFβ2 controls key physiological processes including cell migration, proliferation and differentiation via signalling through type I and type II receptors (TGFβR1 and TGFβR2). TGF-β2 is an immune suppressor involved in the development of immune tolerance, and also regulates embryonic development.In mammals, three different isoforms of TGF-β are described (TGF-β1, TGF-β2 and TGF-β3; transforming growth factor beta) to regulate apoptosis, proliferation, differentiation, migration and invasion processes utilising overlapping but not redundant mechanisms. All three isoforms are expressed in the liver, but their expression is differentially distributed among liver cell types. TGF-β2 expression in different liver cell types and is also associated with developmental defects and fibrotic diseases in mice[1][2][3].
The sequence of amino acids in TGF-β2 proteins from different species is very stable, which leads to the conclusion that in the process of evolution, TGF-β2 has been only slightly altered, and that both in humans and in animals, its function is similar.
TGFβ2 is a transforming growth factor beta (TGFB) family cytokine, with members of this cytokine family playing broad regulatory roles and controlling key physiological processes including cell migration, proliferation and differentiation via signalling through type I and type II receptors (TGFβR1 and TGFβR2), with signals propagating via the downstream regulatory SMAD proteins. This TGFβ/SMAD pathway is frequently dysregulated in human cancer. TGFβ cytokines are capable of suppressing T cell growth in response to IL‐2. The degree of TGFβ2 expression correlated with the expression of several different markers of immune cell subsets within tumours. In addition, TGF-β2 regulates embryonic development and, therefore not surprisingly, global Tgfb2 null mice exhibit a wide range of developmental defects and perinatal mortality[1][2][3].