Role Played by Paxillin and Paxillin Tyrosine Phosphorylation in Hepatocyte Growth Factor/Sphingosine‐1‐Phosphate‐Mediated Reactive Oxygen Species Generation, Lamellipodia Formation, and Endothelial Barrier Function

Paxillin is a multifunctional and multidomain focal adhesion adaptor protein. It serves as an important scaffolding protein at focal adhesions by recruiting and binding to structural and signaling molecules. Paxillin tyrosine phosphorylation at Y31 and Y118 is important for paxillin redistribution to focal adhesions and angiogenesis. Hepatocyte growth factor (HGF) and sphingosine‐1‐phosphate (S1P) are potent stimulators of lamellipodia...