PMID- 23564080 OWN - NLM STAT- MEDLINE DCOM- 20140106 LR - 20211021 IS - 1745-7254 (Electronic) IS - 1671-4083 (Print) IS - 1671-4083 (Linking) VI - 34 IP - 6 DP - 2013 Jun TI - Simvastatin suppresses vascular inflammation and atherosclerosis in ApoE(-/-) mice by downregulating the HMGB1-RAGE axis. PG - 830-6 LID - 10.1038/aps.2013.8 [doi] AB - AIM: High mobility group box protein 1 (HMGB1) and receptor for the advanced glycation end product (RAGE) play pivotal roles in vascular inflammation and atherosclerosis. The aim of this study was to determine whether the HMGB1-RAGE axis was involved in the actions of simvastatin on vascular inflammation and atherosclerosis in ApoE(-/-) mice. METHODS: Five-week old ApoE(-/-) mice and wild-type C57BL/6 mice were fed a Western diet. At 8 weeks of age, ApoE(-/-) mice were administered simvastatin (50 mg.kg(-1).d(-1)) or vehicle by gavage, and the wild-type mice were treated with vehicle. The mice were sacrificed at 11 weeks of age, and the atherosclerotic lesions in aortic sinus were assessed with Oil Red O staining. Macrophage migration was determined with scanning EM and immunohistochemistry. Human umbilical vein endothelial cells (HUVECs) were used for in vitro study. Western blots were used to quantify the protein expression of HMGB1, RAGE, vascular cell adhesion molecule-1 (VCAM-1) and monocyte chemoattractant protein-1 (MCP-1). RESULTS: Vehicle-treated ApoE(-/-) mice exhibited significant increases in aortic inflammation and atherosclerosis as well as enhanced expression of HMGB1, RAGE, VCAM-1, and MCP-1 in aortic tissues as compared to the wild-type mice. Furthermore, serum total cholesterol, triglyceride and LDL levels were markedly increased, while serum HDL level was decreased in vehicle-treated ApoE(-/-) mice. Administration with simvastatin in ApoE(-/-) mice markedly attenuated the vascular inflammation and atherosclerotic lesion area, and decreased the aortic expression of HMGB1, RAGE, VCAM-1, and MCP-1. However, simvastatin did not affect the abnormal levels of serum total cholesterol, triglyceride, LDL and HDL in ApoE(-/-) mice. Exposure of HUVECs to HMGB1 (100 ng/mL) markedly increased the expression of HMGB1, RAGE and VCAM-1, whereas pretreatment of the cells with simvastatin (10 mumol/L) blocked the HMGB1-caused changes. CONCLUSION: Simvastatin inhibits vascular inflammation and atherosclerosis in ApoE(-/-) mice, which may be mediated through downregulation of the HMGB1-RAGE axis. FAU - Liu, Ming AU - Liu M AD - Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai 200032, China. FAU - Yu, Ying AU - Yu Y FAU - Jiang, Hong AU - Jiang H FAU - Zhang, Lei AU - Zhang L FAU - Zhang, Pei-pei AU - Zhang PP FAU - Yu, Peng AU - Yu P FAU - Jia, Jian-guo AU - Jia JG FAU - Chen, Rui-zhen AU - Chen RZ FAU - Zou, Yun-zeng AU - Zou YZ FAU - Ge, Jun-bo AU - Ge JB LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130408 PL - United States TA - Acta Pharmacol Sin JT - Acta pharmacologica Sinica JID - 100956087 RN - 0 (Apolipoproteins E) RN - 0 (HMGB1 Protein) RN - 0 (Hydroxymethylglutaryl-CoA Reductase Inhibitors) RN - 0 (Receptor for Advanced Glycation End Products) RN - 0 (Receptors, Immunologic) RN - AGG2FN16EV (Simvastatin) SB - IM MH - Animals MH - Aorta/drug effects/pathology MH - Apolipoproteins E/genetics MH - Atherosclerosis/*drug therapy/pathology MH - Blotting, Western MH - Down-Regulation/drug effects MH - HMGB1 Protein/genetics MH - Human Umbilical Vein Endothelial Cells MH - Humans MH - Hydroxymethylglutaryl-CoA Reductase Inhibitors/*pharmacology MH - Inflammation/*drug therapy/pathology MH - Macrophages/drug effects/metabolism MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Receptor for Advanced Glycation End Products MH - Receptors, Immunologic/genetics MH - Simvastatin/*pharmacology PMC - PMC4002903 EDAT- 2013/04/09 06:00 MHDA- 2014/01/07 06:00 PMCR- 2013/06/01 CRDT- 2013/04/09 06:00 PHST- 2013/04/09 06:00 [entrez] PHST- 2013/04/09 06:00 [pubmed] PHST- 2014/01/07 06:00 [medline] PHST- 2013/06/01 00:00 [pmc-release] AID - aps20138 [pii] AID - 10.1038/aps.2013.8 [doi] PST - ppublish SO - Acta Pharmacol Sin. 2013 Jun;34(6):830-6. doi: 10.1038/aps.2013.8. Epub 2013 Apr 8.