The modulating effects of the overexpression of uncoupling protein 2 on the formation of reactive oxygen species in vascular cells.

Abstract:

:Uncoupling protein 2 (UCP-2) is a newly identified member of the mitochondrial anion carrier family and shares 60% sequence identity with the well-characterized thermogenic UCP-1 from brown adipose tissue. Several lines of evidence suggest that UCP-2 is involved in the control of reactive oxygen species (ROS) production by mitochondria. More recently, a direct role for UCP-2 in the regulation of atherogenesis has been suggested by the observation that bone marrow transplantation from UCP-2-deficient mice to low-density lipoprotein receptor-deficient mice markedly increased atherosclerotic lesion size. This review introduces the possible role of UCP-2 in the regulation of atherogenesis in vascular cells. Although the relative contribution of the individual ROS generating systems in the vasculature is still ambiguous, both cell membrane NAD(P)H oxidase and the mitochondrial electron-transport chain have been proposed to play significant roles in the overproduction of ROS. UCP-2 can possibly modify atherosclerotic processes initiated in vascular cells and agents that increase UCP-2 expression in vascular cells may help prevent the development and progression of atherosclerosis in patients with diabetes or hypertension.

authors

Kim HS,Park KG,Koo TB,Huh S,Lee IK

doi

10.1016/j.diabres.2007.01.032

subject

Has Abstract

pub_date

2007-09-01 00:00:00

pages

S46-8

eissn

0168-8227

issn

1872-8227

pii

S0168-8227(07)00162-3

journal_volume

77 Suppl 1

pub_type

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