Regulation of NADPH oxidases: the role of Rac proteins

PL Hordijk - Circulation research, 2006 - Am Heart Assoc
Circulation research, 2006Am Heart Assoc
The role for reactive oxygen species (ROS) in cellular (patho) physiology, in particular in
signal transduction, is increasingly recognized. The family of NADPH oxidases (NOXes)
plays an important role in the production of ROS in response to receptor agonists such as
growth factors or inflammatory cytokines that signal through the Rho-like small GTPases
Rac1 or Rac2. The phagocyte oxidase (gp91 phox/NOX2) is the best characterized family
member, and its mode of activation is relatively well understood. Recent work has …
The role for reactive oxygen species (ROS) in cellular (patho)physiology, in particular in signal transduction, is increasingly recognized. The family of NADPH oxidases (NOXes) plays an important role in the production of ROS in response to receptor agonists such as growth factors or inflammatory cytokines that signal through the Rho-like small GTPases Rac1 or Rac2. The phagocyte oxidase (gp91phox/NOX2) is the best characterized family member, and its mode of activation is relatively well understood. Recent work has uncovered novel and increasingly complex modes of control of the NOX2-related proteins. Some of these, including NOX2, have been implicated in various aspects of (cardio)vascular disease, including vascular smooth muscle and endothelial cell hypertrophy and proliferation, inflammation, and atherosclerosis. This review focuses on the role of the Rac1 and Rac2 GTPases in the activation of the various NOX family members.
Am Heart Assoc