PMID- 31662443 OWN - NLM STAT- MEDLINE DCOM- 20200710 LR - 20210217 IS - 1539-7262 (Electronic) IS - 0022-2275 (Print) IS - 0022-2275 (Linking) VI - 60 IP - 12 DP - 2019 Dec TI - CXCL12 promotes atherosclerosis by downregulating ABCA1 expression via the CXCR4/GSK3beta/beta-catenin(T120)/TCF21 pathway. PG - 2020-2033 LID - 10.1194/jlr.RA119000100 [doi] AB - CXC chemokine ligand 12 (CXCL12) is a member of the CXC chemokine family and mainly acts on cell chemotaxis. CXCL12 also elicits a proatherogenic role, but the molecular mechanisms have not been fully defined yet. We aimed to reveal if and how CXCL12 promoted atherosclerosis via regulating lipid metabolism. In vitro, our data showed that CXCL12 could reduce ABCA1 expression, and it mediated cholesterol efflux from THP-1-derived macrophages to apoA-I. Data from the luciferase reporter gene and chromatin immunoprecipitation assays revealed that transcription factor 21 (TCF21) stimulated the transcription of ABCA1 via binding to its promoter region, which was repressed by CXCL12. We found that CXCL12 increased the levels of phosphorylated glycogen synthase kinase 3beta (GSK3beta) and the phosphorylation of beta-catenin at the Thr120 position. Inactivation of GSK3beta or beta-catenin increased the expression of TCF21 and ABCA1. Further, knockdown or inhibition of CXC chemokine receptor 4 (CXCR4) blocked the effects of CXCL12 on TCF21 and ABCA1 expression and the phosphorylation of GSK3beta and beta-catenin. In vivo, the overexpression of CXCL12 in Apoe(-/-) mice via lentivirus enlarged the atherosclerotic lesion area and increased macrophage infiltration in atherosclerotic plaques. We further found that the overexpression of CXCL12 reduced the efficiency of reverse cholesterol transport and plasma HDL-C levels, decreased ABCA1 expression in the aorta and mouse peritoneal macrophages (MPMs), and suppressed cholesterol efflux from MPMs to apoA-I in Apoe(-/-) mice. Collectively, these findings suggest that CXCL12 interacts with CXCR4 and then activates the GSK-3beta/beta-catenin(T120)/TCF21 signaling pathway to inhibit ABCA1-dependent cholesterol efflux from macrophages and aggravate atherosclerosis. Targeting CXCL12 may be a novel and promising strategy for the prevention and treatment of atherosclerotic cardiovascular diseases. CI - Copyright (c) 2019 Gao et al. FAU - Gao, Jia-Hui AU - Gao JH AUID- ORCID: 0000-0002-7459-4361 AD - Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Medical Research Experiment Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, University of South China, Hengyang, Hunan, China. FAU - He, Lin-Hao AU - He LH AD - School of Pharmacy and Life Science College, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, University of South China, Hengyang, Hunan, China. FAU - Yu, Xiao-Hua AU - Yu XH AD - Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Medical Research Experiment Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, University of South China, Hengyang, Hunan, China. FAU - Zhao, Zhen-Wang AU - Zhao ZW AD - Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Medical Research Experiment Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, University of South China, Hengyang, Hunan, China. FAU - Wang, Gang AU - Wang G AD - Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Medical Research Experiment Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, University of South China, Hengyang, Hunan, China. FAU - Zou, Jin AU - Zou J AD - Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Medical Research Experiment Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, University of South China, Hengyang, Hunan, China. FAU - Wen, Feng-Jiao AU - Wen FJ AD - School of Pharmacy and Life Science College, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, University of South China, Hengyang, Hunan, China. FAU - Zhou, Li AU - Zhou L AD - Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Medical Research Experiment Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, University of South China, Hengyang, Hunan, China. FAU - Wan, Xiang-Jun AU - Wan XJ AD - Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Medical Research Experiment Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, University of South China, Hengyang, Hunan, China. FAU - Zhang, Da-Wei AU - Zhang DW AD - Department of Pediatrics and Group on the Molecular and Cell Biology of Lipids, University of Alberta, Edmonton, Alberta, Canada. FAU - Tang, Chao-Ke AU - Tang CK AD - Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Medical Research Experiment Center, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, University of South China, Hengyang, Hunan, China tangchaoke@qq.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20191029 PL - United States TA - J Lipid Res JT - Journal of lipid research JID - 0376606 RN - 0 (ATP Binding Cassette Transporter 1) RN - 0 (Apolipoproteins E) RN - 0 (Basic Helix-Loop-Helix Transcription Factors) RN - 0 (CXCR4 protein, human) RN - 0 (Chemokine CXCL12) RN - 0 (Receptors, CXCR4) RN - 0 (TCF21 protein, human) RN - 0 (beta Catenin) RN - 97C5T2UQ7J (Cholesterol) RN - EC 2.7.11.1 (Glycogen Synthase Kinase 3 beta) SB - IM MH - ATP Binding Cassette Transporter 1/*genetics MH - Animals MH - Apolipoproteins E/deficiency MH - Atherosclerosis/genetics/*metabolism/pathology MH - Basic Helix-Loop-Helix Transcription Factors/*metabolism MH - Chemokine CXCL12/*metabolism MH - Cholesterol/metabolism MH - Down-Regulation MH - Glycogen Synthase Kinase 3 beta/*metabolism MH - HEK293 Cells MH - Humans MH - Macrophages/metabolism MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Receptors, CXCR4/*metabolism MH - beta Catenin/*metabolism PMC - PMC6889714 OTO - NOTNLM OT - ATP binding cassette transporter A1 OT - CXC chemokine ligand 12 OT - CXC chemokine receptor 4 OT - cholesterol efflux OT - glycogen synthase kinase 3beta OT - transcription factor 21 COIS- The authors declare that they have no conflicts of interest with the contents of this article. EDAT- 2019/10/31 06:00 MHDA- 2020/07/11 06:00 PMCR- 2020/12/01 CRDT- 2019/10/31 06:00 PHST- 2019/04/30 00:00 [received] PHST- 2019/10/22 00:00 [revised] PHST- 2019/10/31 06:00 [pubmed] PHST- 2020/07/11 06:00 [medline] PHST- 2019/10/31 06:00 [entrez] PHST- 2020/12/01 00:00 [pmc-release] AID - S0022-2275(20)31041-5 [pii] AID - rA119000100 [pii] AID - 10.1194/jlr.RA119000100 [doi] PST - ppublish SO - J Lipid Res. 2019 Dec;60(12):2020-2033. doi: 10.1194/jlr.RA119000100. Epub 2019 Oct 29.