Basic fibroblast growth factor, vascular endothelial growth factor, and tumor necrosis factor-alpha signaling pathways (bFGF/VEGF/TNF-alpha pathways)

The bFGF (basic Fibroblast Growth Factor), VEGF (Vascular Endothelial Growth Factor), and TNF-alpha (Tumor Necrosis Factor-alpha) signaling pathways are critical regulatory networks that govern angiogenesis, cell growth, and the inflammatory response. VEGF is a key driver of blood vessel formation, acting primarily through VEGFR-1 and VEGFR-2 to promote endothelial cell proliferation and permeability (Ferrara, 2004). bFGF, also known as FGF2, serves as a potent mitogen for various cell types and works synergistically with VEGF to enhance angiogenesis and tissue repair, often contributing to therapeutic resistance in oncology (Presta et al., 2005). TNF-alpha is a central pro-inflammatory cytokine that mediates immune cell activation and can trigger either cell survival or apoptosis depending on the cellular context (Aggarwal, 2003). These pathways are frequently co-activated in pathological conditions such as solid tumors, where they support a pro-angiogenic and immunosuppressive microenvironment, as well as in chronic inflammatory diseases like rheumatoid arthritis. Consequently, pharmacological intervention often targets these pathways using monoclonal antibodies or small-molecule kinase inhibitors to disrupt the signaling loops that drive disease progression.

Other names

FGF2/VEGF/TNF signalingAngiogenic and inflammatory signaling cascadesFibroblast growth factor 2, vascular endothelial growth factor, and tumor necrosis factor signaling

Inhibition of ligand binding to cell surface receptors and suppression of intracellular tyrosine kinase activity or downstream signaling mediators.