VEGFR-1, VEGFR-2, VEGFR-3, PDGFRs

The provided name conflates several distinct receptors (singular forms recommended), merges two receptor families, and uses a plural abbreviation without distinction between alpha/beta forms of PDGFRs. For clarity, each individual receptor should be treated as its own target; "PDGFRs" is incomplete. Vascular endothelial growth factor receptors (VEGFR-1, VEGFR-2, VEGFR-3) and platelet-derived growth factor receptors (PDGFR-alpha, PDGFR-beta) are members of the receptor tyrosine kinase family essential for regulating blood vessel growth, maintenance, and lymphatic vessel development[1][3][4][5][8]. VEGFR-1 primarily modulates angiogenesis and the recruitment of monocytes; VEGFR-2 is the primary mediator of angiogenic signaling, promoting endothelial proliferation, migration, and vascular permeability[3][4][8]. VEGFR-3 is mainly involved in lymphangiogenesis. PDGFR-alpha and PDGFR-beta regulate mesenchymal cell proliferation and recruitment, vessel stabilization, and tissue maintenance[1][6]. Both VEGFRs and PDGFRs have extracellular ligand-binding domains, a transmembrane helix, and an intracellular split tyrosine kinase domain; activation leads to downstream signaling through pathways such as PI3K/AKT and MAPK[1][8]. Dysregulation or overactivation is implicated in pathological angiogenesis and numerous malignancies, making these receptors key therapeutic targets in anti-angiogenic and anti-tumor strategies[8]. While grouped in your query, each receptor should ideally be treated as an individual target according to best practices. "PDGFRs" must be resolved into "platelet-derived growth factor receptor alpha" and "platelet-derived growth factor receptor beta" for structured annotation.

Other names

Flt-1KDRFlk-1Flt-4CD140aCD140b

Inhibition of ligand binding; Inhibition of receptor tyrosine kinase activity; Blocking angiogenic and/or lymphangiogenic signaling; Suppression of endothelial cell proliferation and migration; Induction of apoptosis in tumor vasculature; Disruption of downstream signaling such as PI3K/AKT and MAPK pathways