Pdgfb

Function

Growth factor that plays an essential role in the regulation of embryonic development, cell proliferation, cell migration, survival and chemotaxis. Potent mitogen for cells of mesenchymal origin. Required for normal proliferation and recruitment of pericytes and vascular smooth muscle cells in the central nervous system, skin, lung, heart and placenta. Required for normal blood vessel development, and for normal development of kidney glomeruli. Plays an important role in wound healing. Signaling is modulated by the formation of heterodimers with PDGFA.

Sequence Similarities

Belongs to the PDGF/VEGF growth factor family.

Tissue Specificity

Localized to vascular smooth muscle cells. Also weakly expressed by cortical interstitial cells but absent in tubules. Up-regulated in areas of renal fibrosis. In mice with unilateral ureteral obstruction, an increased expression in interstitial cells and in some tubules observed after day 4.

Cellular localization

• Secreted
• Released by platelets upon wounding.

Alternative names

Sis, Pdgfb, Platelet-derived growth factor subunit B, PDGF subunit B, PDGF-2, Platelet-derived growth factor B chain, Platelet-derived growth factor beta polypeptide, Proto-oncogene c-Sis

Database links

swissprot:P31240 entrezGene:18591

Other research areas

• Oncology