Elevated Cholesterol Levels in the Plasma Membranes of Macrophages Inhibit Migration by Disrupting RhoA Regulation
Author(s) -
Tomokazu Nagao,
Chunbo Qin,
Inna Grosheva,
Frederick R. Maxfield,
Lynda M. Pierini
Publication year - 2007
Publication title -
arteriosclerosis thrombosis and vascular biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.007
H-Index - 270
eISSN - 1524-4636
pISSN - 1079-5642
DOI - 10.1161/atvbaha.107.145086
Subject(s) - rhoa , cell migration , cholesterol , foam cell , chemistry , microbiology and biotechnology , cell , macrophage , myosin , biophysics , biochemistry , lipoprotein , biology , in vitro , signal transduction
Atherogenesis begins as small subendothelial accumulations of foam cells that develop through unregulated uptake of modified and aggregated low-density lipoprotein (LDL). The reason why foam cells remain in the atherosclerotic plaque rather than migrating out of the area is unclear. We tested the hypothesis that elevated membrane cholesterol levels, which may result from interactions with aggregated LDL, affect macrophage migration.
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