Research Project
Grant-in-Aid for Scientific Research (B)
Accumulating evidence suggests significance of the oxidized LDL receptor LOX-1 in endothelial and vascular dysfunction. In this study, we generated LOX-1 KO mice to address the role of LOX-1 in atherosclerotic diseases. With the KO mice, we obtained following results. (1) LOX-1 KO mice were resistant to the suppressive effects of oxidized LDL on endothelium-dependent relaxation. (2) Atherosclerosis induced by high fat diet was delayed in LOX-1 KO mice compared with wild type mice in both C57BL/6 and LDLRKO-C57BL/6 background. (3) Myocardial infarction and cardiac remodeling induced by LASD ligation was suppressed and cardiac function was relatively preserved in LOX-1 KO mice compared with wild type. (4) Both platelet aggregation in vitro and FeC12-induced thrombosis in vivo were suppressed in LOX-1 KO mice compared with wild type. Thus, we have demonstrated that LOX-1 aggravates every phase of atherosclerotic diseases, i.e. endothelial dysfunction, atherosclerosis, thrombosis, and myocardial infarction.
All 2008 2007 2006
All Journal Article (37 results) (of which Peer Reviewed: 18 results) Presentation (8 results)
J Mol Cell Cardiol 44
Pages: 76-83
J Lipid Res 49
Pages: 33-47
Mol Reprod Dev (in press)
Circ Res 100
Pages: 281-290
J Pharmacol Exp Ther 322
Pages: 1634-1642
Methods 43
Pages: 218-222
Cardiovasc Res 76
Mol Reprod Dev 49
Osteoarthritis Cartlage 15
Pages: 1324-1332
Pages: 292-302
Mol Reprod Dev 49(in press)
J Lipid Res 47
Pages: 1227-1237
Hypertension 48
Pages: 294-300
J Orthop Res 24
Pages: 1782-1790
Biochem Biophys Res Commun 348
Pages: 1003-1010
Atherosclerosis 188
Pages: 245-250
J Cardiovasc Pharmacol 48
Pages: 177-183
Osteoarthritis Cartilage 15