PMID- 30018722 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 1943-8141 (Print) IS - 1943-8141 (Electronic) IS - 1943-8141 (Linking) VI - 10 IP - 6 DP - 2018 TI - Apolipoprotein B-100 peptide 210 antibody inhibits atherosclerosis by regulation of macrophages that phagocytize oxidized lipid. PG - 1817-1828 AB - Immunization with peptides derived from apolipoprotein B-100 (ApoB-100) has been shown to ameliorate atherosclerosis in apolipoprotein E knockout (ApoE(-/-)) mice. However, the exact mechanism underlying the therapeutic effects remains elusive. To shed light on this mechanism, we immunized ApoE(-/-) mice that were fed a Western diet with either malondialdehyde-modified ApoB-100 peptide 210 (P210) emulsified in Freund's adjuvant or anti-malondialdehyde-modified P210 antibody (P210-Ab). Mice immunized with Freund's adjuvant or bovine serum albumin served as controls. Macrophages were incubated in vitro with oxidized low-density lipoprotein (ox-LDL) or ox-LDL plus P210-Ab. Our results show that P210-Ab promoted cholesterol efflux, inhibited lipid accumulation in vitro, and reduced plasma levels of high-sensitivity C-reactive protein (hsCRP), monocyte chemoattractant protein-1 (MCP-1), tumor necrosis factor-alpha (TNF-alpha), and interleukin-6 (IL-6). Furthermore, dramatically increased the expression of Fc receptors (FcR) on peripheral blood mononuclear macrophages, suggesting that the mechanism of phagocytosis of ox-LDL by mononuclear macrophages may rely more on FcR than the cluster of differentiation 36 (CD36) scavenger receptor with P210-Ab. Both in vitro and in vivo, P210-Ab triggered the promoter of ATP-binding cassette transporter A1 (ABCA1) to increase peroxisome proliferator-activated receptor alpha (alpha) activity and inhibit the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kappaB) pathway. In addition, P210-Ab significantly attenuated macrophage infiltration and markedly improved the stability of atheromatous plaque. In conclusion, the anti-atherosclerotic effect of P210-Ab is related to its preferential inhibition of inflammation and reversion of cholesterol transportation by altering the pathway by which macrophages phagocytize ox-LDL. FAU - Zeng, Zhuanglin AU - Zeng Z AD - Laboratory of Cardiovascular Immunology, Key Laboratory of Molecular Targeted Therapies of The Ministry of Education, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology Wuhan 430022, Hubei, China. FAU - Cao, Bingxin AU - Cao B AD - Laboratory of Cardiovascular Immunology, Key Laboratory of Molecular Targeted Therapies of The Ministry of Education, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology Wuhan 430022, Hubei, China. FAU - Guo, Xiaopeng AU - Guo X AD - Department of Interventional Radiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology Wuhan 430022, Hubei, China. FAU - Li, Weijuan AU - Li W AD - Laboratory of Cardiovascular Immunology, Key Laboratory of Molecular Targeted Therapies of The Ministry of Education, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology Wuhan 430022, Hubei, China. FAU - Li, Songhai AU - Li S AD - Laboratory of Cardiovascular Immunology, Key Laboratory of Molecular Targeted Therapies of The Ministry of Education, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology Wuhan 430022, Hubei, China. FAU - Chen, Juan AU - Chen J AD - Laboratory of Cardiovascular Immunology, Key Laboratory of Molecular Targeted Therapies of The Ministry of Education, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology Wuhan 430022, Hubei, China. FAU - Zhou, Wenping AU - Zhou W AD - Laboratory of Cardiovascular Immunology, Key Laboratory of Molecular Targeted Therapies of The Ministry of Education, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology Wuhan 430022, Hubei, China. FAU - Zheng, Chuansheng AU - Zheng C AD - Department of Interventional Radiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology Wuhan 430022, Hubei, China. FAU - Wei, Yumiao AU - Wei Y AD - Laboratory of Cardiovascular Immunology, Key Laboratory of Molecular Targeted Therapies of The Ministry of Education, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology Wuhan 430022, Hubei, China. LA - eng PT - Journal Article DEP - 20180615 PL - United States TA - Am J Transl Res JT - American journal of translational research JID - 101493030 PMC - PMC6038070 OTO - NOTNLM OT - P210 OT - atherosclerosis OT - cholesterol efflux OT - inflammation OT - macrophages COIS- None. EDAT- 2018/07/19 06:00 MHDA- 2018/07/19 06:01 PMCR- 2018/06/15 CRDT- 2018/07/19 06:00 PHST- 2018/01/25 00:00 [received] PHST- 2018/05/14 00:00 [accepted] PHST- 2018/07/19 06:00 [entrez] PHST- 2018/07/19 06:00 [pubmed] PHST- 2018/07/19 06:01 [medline] PHST- 2018/06/15 00:00 [pmc-release] PST - epublish SO - Am J Transl Res. 2018 Jun 15;10(6):1817-1828. eCollection 2018.