Abstract
Reactive oxygen species (ROS) are acknowledged generally to be multi-faceted regulators of cellular functions that trigger various pathological states when present chronically or transiently at non-physiologically high levels. Here we focus on the physiological involvement of ROS in cellular motility, with special emphasis on endothelial cells (EC). An important source of ROS within EC is the non-phagocytic NAD(P)H oxidase, and the small GTPase Rac1 plays a central role in activating this complex. Rac1 is one of the three Rho-family molecules (Rac, Rho and Cdc42) involved in the control of the actin cytoskeleton in response to various signals. In this review we examine the evidence linking ROS production, Rac1 activation and actin organization to EC motility, considering mechanisms for direct interaction of ROS and actin and the effects of ROS on proteins that regulate the actin cytoskeleton. The accumulated evidence suggests that ROS are important regulators of the actin cytoskeletal dynamics and cellular motility, and more in-depth studies are needed to understand the underlying mechanisms.
| Original language | English |
|---|---|
| Pages (from-to) | 236-246 |
| Number of pages | 11 |
| Journal | Cardiovascular Research |
| Volume | 71 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jul 15 2006 |
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Keywords
- Cytoskeleton
- Endothelial function
- NADPH oxidase
- Oxygen radicals
- Redox signalling
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
Cite this
Reactive oxygen species in vascular endothelial cell motility. Roles of NAD(P)H oxidase and Rac1. / Moldovan, Leni; Mythreye, Karthikeyan; Goldschmidt-Clermont, Pascal; Satterwhite, Lisa L.
In: Cardiovascular Research, Vol. 71, No. 2, 15.07.2006, p. 236-246.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Reactive oxygen species in vascular endothelial cell motility. Roles of NAD(P)H oxidase and Rac1
AU - Moldovan, Leni
AU - Mythreye, Karthikeyan
AU - Goldschmidt-Clermont, Pascal
AU - Satterwhite, Lisa L.
PY - 2006/7/15
Y1 - 2006/7/15
N2 - Reactive oxygen species (ROS) are acknowledged generally to be multi-faceted regulators of cellular functions that trigger various pathological states when present chronically or transiently at non-physiologically high levels. Here we focus on the physiological involvement of ROS in cellular motility, with special emphasis on endothelial cells (EC). An important source of ROS within EC is the non-phagocytic NAD(P)H oxidase, and the small GTPase Rac1 plays a central role in activating this complex. Rac1 is one of the three Rho-family molecules (Rac, Rho and Cdc42) involved in the control of the actin cytoskeleton in response to various signals. In this review we examine the evidence linking ROS production, Rac1 activation and actin organization to EC motility, considering mechanisms for direct interaction of ROS and actin and the effects of ROS on proteins that regulate the actin cytoskeleton. The accumulated evidence suggests that ROS are important regulators of the actin cytoskeletal dynamics and cellular motility, and more in-depth studies are needed to understand the underlying mechanisms.
AB - Reactive oxygen species (ROS) are acknowledged generally to be multi-faceted regulators of cellular functions that trigger various pathological states when present chronically or transiently at non-physiologically high levels. Here we focus on the physiological involvement of ROS in cellular motility, with special emphasis on endothelial cells (EC). An important source of ROS within EC is the non-phagocytic NAD(P)H oxidase, and the small GTPase Rac1 plays a central role in activating this complex. Rac1 is one of the three Rho-family molecules (Rac, Rho and Cdc42) involved in the control of the actin cytoskeleton in response to various signals. In this review we examine the evidence linking ROS production, Rac1 activation and actin organization to EC motility, considering mechanisms for direct interaction of ROS and actin and the effects of ROS on proteins that regulate the actin cytoskeleton. The accumulated evidence suggests that ROS are important regulators of the actin cytoskeletal dynamics and cellular motility, and more in-depth studies are needed to understand the underlying mechanisms.
KW - Cytoskeleton
KW - Endothelial function
KW - NADPH oxidase
KW - Oxygen radicals
KW - Redox signalling
UR - http://www.scopus.com/inward/record.url?scp=33745223933&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33745223933&partnerID=8YFLogxK
U2 - 10.1016/j.cardiores.2006.05.003
DO - 10.1016/j.cardiores.2006.05.003
M3 - Article
C2 - 16782079
AN - SCOPUS:33745223933
VL - 71
SP - 236
EP - 246
JO - Cardiovascular Research
JF - Cardiovascular Research
SN - 0008-6363
IS - 2
ER -