PMID- 32091078 OWN - NLM STAT- MEDLINE DCOM- 20200720 LR - 20200720 IS - 1470-8736 (Electronic) IS - 0143-5221 (Linking) VI - 134 IP - 5 DP - 2020 Mar 13 TI - Myriocin and d-PDMP ameliorate atherosclerosis in ApoE-/- mice via reducing lipid uptake and vascular inflammation. PG - 439-458 LID - 10.1042/CS20191028 [doi] AB - Sphingolipids have been implicated in the etiology of atherosclerosis. The commonly used sphingolipid inhibitors, myriocin (a ceramide inhibitor) and d-PDMP (d-threo-1-phenyl-2-decanoylamino-3-morpholino-1-propanol, a glycosphingolipid inhibitor), have shown therapeutic potential but their efficacy and their underlying mechanisms remain unclear. Here, apolipoprotein E-deficient (apoE-/-) mice were fed a high-fat diet (HFD) and treated with a control, myriocin, d-PDMP, or atorvastatin for 12 weeks. We analyzed the effects of these drugs on the size and detailed composition of atherosclerotic plaques. Molecular biological approaches were used to explore how the inhibitors affect lipid metabolism and foam-cell formation. Treatment with myriocin or d-PDMP led to smaller and less vulnerable atherosclerotic lesions and was almost as effective as atorvastatin. Sphingolipid inhibitors down-regulated the expression of monocyte chemotactic protein 1 (MCP-1) and its receptor chemoattractant cytokine receptor 2 (CCR2), which play a key role in monocyte recruitment. They also decreased pro-inflammatory Ly-6chigh monocytes and influenced the uptake of modified LDL by down-regulating the expression of cluster of differentiation 36 (CD36) and lectin-like oxidized LDL (ox-LDL) receptor-1 (LOX-1). The inhibitors exhibited the advantage of maintaining normal glucose homeostasis compared with atorvastatin. These findings reveal for the first time that the modulation of sphingolipid synthesis can effectively alleviate atherosclerosis progression by preventing lipid uptake and reducing inflammatory responses in the arterial walls. CI - (c) 2020 The Author(s). FAU - Yu, Zemou AU - Yu Z AD - Department of Neurology, Peking University First Hospital, No. 8 Xishiku Street, Xicheng District, Beijing 100034, China. FAU - Peng, Qing AU - Peng Q AD - Department of Neurology, Peking University First Hospital, No. 8 Xishiku Street, Xicheng District, Beijing 100034, China. FAU - Li, Songyue AU - Li S AD - Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Institute of Analytical Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China. FAU - Hao, Hongjun AU - Hao H AD - Department of Neurology, Peking University First Hospital, No. 8 Xishiku Street, Xicheng District, Beijing 100034, China. FAU - Deng, Jianwen AU - Deng J AD - Department of Neurology, Peking University First Hospital, No. 8 Xishiku Street, Xicheng District, Beijing 100034, China. FAU - Meng, Lingbing AU - Meng L AD - Department of Neurology, Beijing Hospital, National Center of Gerontology, No.1 Dahua Road, Dong Dan, Beijing 100730, China. FAU - Shen, Zhiyuan AU - Shen Z AD - Department of Neurology, Peking University First Hospital, No. 8 Xishiku Street, Xicheng District, Beijing 100034, China. FAU - Yu, Weiwei AU - Yu W AD - Department of Neurology, Peking University First Hospital, No. 8 Xishiku Street, Xicheng District, Beijing 100034, China. FAU - Nan, Ding AU - Nan D AD - Department of Neurology, Peking University First Hospital, No. 8 Xishiku Street, Xicheng District, Beijing 100034, China. FAU - Bai, Yu AU - Bai Y AD - Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Institute of Analytical Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China. FAU - Huang, Yining AU - Huang Y AD - Department of Neurology, Peking University First Hospital, No. 8 Xishiku Street, Xicheng District, Beijing 100034, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Clin Sci (Lond) JT - Clinical science (London, England : 1979) JID - 7905731 RN - 0 (Anticholesteremic Agents) RN - 0 (Apolipoproteins E) RN - 0 (Ceramides) RN - 0 (Fatty Acids, Monounsaturated) RN - 0 (Glycosphingolipids) RN - 0 (Immunosuppressive Agents) RN - 0 (Lipids) RN - 0 (Morpholines) RN - 73257-80-4 (RV 538) RN - A0JWA85V8F (Atorvastatin) RN - YRM4E8R9ST (thermozymocidin) SB - IM MH - Animals MH - Anticholesteremic Agents/pharmacology MH - Apolipoproteins E/*deficiency/genetics MH - Atherosclerosis/metabolism/*prevention & control MH - Atorvastatin/pharmacology MH - Biological Transport/drug effects MH - Ceramides/antagonists & inhibitors/metabolism MH - Fatty Acids, Monounsaturated/*pharmacology MH - Glycosphingolipids/antagonists & inhibitors/metabolism MH - Immunosuppressive Agents/pharmacology MH - Lipid Metabolism/*drug effects MH - Lipids/blood/pharmacokinetics MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Morpholines/*pharmacology MH - Plaque, Atherosclerotic/metabolism/pathology/prevention & control MH - Vasculitis/metabolism/*prevention & control OTO - NOTNLM OT - atherosclerosis OT - inflammation OT - lipid uptake OT - sphingolipid inhibitors EDAT- 2020/02/25 06:00 MHDA- 2020/07/21 06:00 CRDT- 2020/02/25 06:00 PHST- 2019/10/06 00:00 [received] PHST- 2020/02/17 00:00 [revised] PHST- 2020/02/21 00:00 [accepted] PHST- 2020/02/25 06:00 [pubmed] PHST- 2020/07/21 06:00 [medline] PHST- 2020/02/25 06:00 [entrez] AID - 222190 [pii] AID - 10.1042/CS20191028 [doi] PST - ppublish SO - Clin Sci (Lond). 2020 Mar 13;134(5):439-458. doi: 10.1042/CS20191028.