Pristane attenuates atherosclerosis in Apoe−/− mice via IL-4-secreting regulatory plasma cell-mediated M2 macrophage polarization

Atherosclerosis, an inflammatory progressive vascular disease, causes heart disease and stroke worldwide. B cells with immune suppressive functions have been implicated in autoimmune, inflammatory, and cardiovascular diseases. However, the precise role of regulatory B cells and the interaction with...

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Main Authors: Yimin Huang, Kongyang Ma, Rencai Qin, Yaxiong Fang, Jingquan Zhou, Xiaoyan Dai
Format: Article
Language:English
Published: Elsevier 2022-11-01
Series:Biomedicine & Pharmacotherapy
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0753332222011398
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author Yimin Huang
Kongyang Ma
Rencai Qin
Yaxiong Fang
Jingquan Zhou
Xiaoyan Dai
author_facet Yimin Huang
Kongyang Ma
Rencai Qin
Yaxiong Fang
Jingquan Zhou
Xiaoyan Dai
author_sort Yimin Huang
collection DOAJ
description Atherosclerosis, an inflammatory progressive vascular disease, causes heart disease and stroke worldwide. B cells with immune suppressive functions have been implicated in autoimmune, inflammatory, and cardiovascular diseases. However, the precise role of regulatory B cells and the interaction with macrophages in atherosclerosis remains undefined. In our study, eight-week-old female apolipoprotein E null (Apoe−/−) mice were treated with a single dose of vehicle or pristane and then placed on an atherogenic diet for 12 weeks. We found that pristane decreased atherosclerotic lesion formation and increased stability of atherosclerotic plaques in Apoe−/− mice. We also observed lower frequencies of CD19+ B cells but higher frequencies of CD138+ plasma cells and CD206+ M2 macrophages in Apoe−/− mice treated with pristane. Importantly, pristane inhibited immune cell infiltration into the vascular wall. The upregulation of IL-4 in bone-marrow CD138+ plasma cells from pristane-treated Apoe−/− mice was demonstrated by RNA-sequencing (RNA-seq). Consistently, oxidized low-density lipoprotein (oxLDL) directly induced IL-4-secreting plasma cell generation in vitro. In a co-culture system incubating an anti-IL-4 neutralizing antibody, the results showed that oxLDL-induced CD138+ plasma cells could boost M2 macrophage polarization via IL-4 secretion. Our data demonstrate an unexpected role that pristane induces IL-4-producing CD138+ regulatory plasma cell generation and M2 polarization to protect atherosclerosis development.
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spelling doaj.art-a2c0a96be87f4b3384c03fa8cc4822332022-12-22T04:34:14ZengElsevierBiomedicine & Pharmacotherapy0753-33222022-11-01155113750Pristane attenuates atherosclerosis in Apoe−/− mice via IL-4-secreting regulatory plasma cell-mediated M2 macrophage polarizationYimin Huang0Kongyang Ma1Rencai Qin2Yaxiong Fang3Jingquan Zhou4Xiaoyan Dai5Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, ChinaCentre for Infection and Immunity Studies (CIIS), School of Medicine, Sun Yat-sen University, Shenzhen, Guangdong 518107, China; Correspondence authors.Centre for Infection and Immunity Studies (CIIS), School of Medicine, Sun Yat-sen University, Shenzhen, Guangdong 518107, ChinaGuangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, ChinaGuangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, ChinaGuangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, China; Correspondence authors.Atherosclerosis, an inflammatory progressive vascular disease, causes heart disease and stroke worldwide. B cells with immune suppressive functions have been implicated in autoimmune, inflammatory, and cardiovascular diseases. However, the precise role of regulatory B cells and the interaction with macrophages in atherosclerosis remains undefined. In our study, eight-week-old female apolipoprotein E null (Apoe−/−) mice were treated with a single dose of vehicle or pristane and then placed on an atherogenic diet for 12 weeks. We found that pristane decreased atherosclerotic lesion formation and increased stability of atherosclerotic plaques in Apoe−/− mice. We also observed lower frequencies of CD19+ B cells but higher frequencies of CD138+ plasma cells and CD206+ M2 macrophages in Apoe−/− mice treated with pristane. Importantly, pristane inhibited immune cell infiltration into the vascular wall. The upregulation of IL-4 in bone-marrow CD138+ plasma cells from pristane-treated Apoe−/− mice was demonstrated by RNA-sequencing (RNA-seq). Consistently, oxidized low-density lipoprotein (oxLDL) directly induced IL-4-secreting plasma cell generation in vitro. In a co-culture system incubating an anti-IL-4 neutralizing antibody, the results showed that oxLDL-induced CD138+ plasma cells could boost M2 macrophage polarization via IL-4 secretion. Our data demonstrate an unexpected role that pristane induces IL-4-producing CD138+ regulatory plasma cell generation and M2 polarization to protect atherosclerosis development.http://www.sciencedirect.com/science/article/pii/S0753332222011398AtherosclerosisAutoimmunityRegulatory plasma cellMacrophagePolarization
spellingShingle Yimin Huang
Kongyang Ma
Rencai Qin
Yaxiong Fang
Jingquan Zhou
Xiaoyan Dai
Pristane attenuates atherosclerosis in Apoe−/− mice via IL-4-secreting regulatory plasma cell-mediated M2 macrophage polarization
Biomedicine & Pharmacotherapy
Atherosclerosis
Autoimmunity
Regulatory plasma cell
Macrophage
Polarization
title Pristane attenuates atherosclerosis in Apoe−/− mice via IL-4-secreting regulatory plasma cell-mediated M2 macrophage polarization
title_full Pristane attenuates atherosclerosis in Apoe−/− mice via IL-4-secreting regulatory plasma cell-mediated M2 macrophage polarization
title_fullStr Pristane attenuates atherosclerosis in Apoe−/− mice via IL-4-secreting regulatory plasma cell-mediated M2 macrophage polarization
title_full_unstemmed Pristane attenuates atherosclerosis in Apoe−/− mice via IL-4-secreting regulatory plasma cell-mediated M2 macrophage polarization
title_short Pristane attenuates atherosclerosis in Apoe−/− mice via IL-4-secreting regulatory plasma cell-mediated M2 macrophage polarization
title_sort pristane attenuates atherosclerosis in apoe mice via il 4 secreting regulatory plasma cell mediated m2 macrophage polarization
topic Atherosclerosis
Autoimmunity
Regulatory plasma cell
Macrophage
Polarization
url http://www.sciencedirect.com/science/article/pii/S0753332222011398
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AT yaxiongfang pristaneattenuatesatherosclerosisinapoemiceviail4secretingregulatoryplasmacellmediatedm2macrophagepolarization
AT jingquanzhou pristaneattenuatesatherosclerosisinapoemiceviail4secretingregulatoryplasmacellmediatedm2macrophagepolarization
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