Figure 2. Tiplaxtinin inhibits PAI-1/uPA complex formation and promotes PAI-1 cleavage.
(A) Human uPA was incubated with FL-PAI-1 and the indicated concentration of tiplaxtinin. Solid arrow indicates full-length PAI-1; dashed arrow denotes cleaved PAI-1. (B) RASMCs were treated with tiplaxtinin or vehicle control in complete media for 24 h. PAI-1 and GAPDH (loading control) in cell lysates were identified by western blotting. Full-length and cleaved PAI-1 are highlighted by solid and dashed arrows, respectively. TPX=tiplaxtinin.