Abstract:Smooth muscle cell (SMC) degradation of the extracellular matrix and migration to the intima are fundamental processes in the vascular response to injury. NADPH oxidase-derived reactive oxygen species (ROS) are involved in development of vascular disease; however, the specific contribution of Nox1 and Nox4, the primary catalytic subunits of NADPH oxidase in SMC, is poorly understood. We hypothesized that Nox1-derived ROS mediate thrombin-dependent activation of matrix metalloproteinase 9 (MMP-9) and migration … Show more
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