The Foam Cell Formation Associated With Imbalanced Cholesterol Homeostasis Due to Airborne Magnetite Nanoparticles Exposure
Abstract Fine particulate matter (PM) is a leading environmental cause for the increased morbidity and mortality of atherosclerosis (AS) worldwide, but little is known about the toxic component and disturbance of PM exposure on foam cell formation, a crucial pathological process in AS. Airborne magn...
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Veröffentlicht in: | Toxicological sciences 2022-09, Vol.189 (2), p.287-300 |
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creator | Yu, Haiyi Xu, Liting Cui, Tenglong Wang, Yu Wang, Baoqiang Zhang, Ze Su, Ruijun Zhang, Jingxu Zhang, Rong Wei, Yanhong Li, Daochuan Jin, Xiaoting Chen, Wen Zheng, Yuxin |
description | Abstract
Fine particulate matter (PM) is a leading environmental cause for the increased morbidity and mortality of atherosclerosis (AS) worldwide, but little is known about the toxic component and disturbance of PM exposure on foam cell formation, a crucial pathological process in AS. Airborne magnetite nanoparticles (NPs) have been reported to be detected in human serum, which inevitably encounter with macrophages in atherosclerotic plaques, thus throwing potential disturbance on the formation of macrophage-derived foam cells. Here we comprehensively unveiled that the environmental concentrations of PM exposure triggered and potentiated the formation of macrophage-derived foam cells using both real-ambient PM-exposed mice and AS mice models, including high-fat diet-fed mice and apolipoprotein E-deficient mice. The in vitro model further defined the dose-dependent response of PM treatment on foam cell formation. Interestingly, airborne magnetite NPs rather than nonmagnetic NPs at the same concentration were demonstrated to be the key toxic component of PM in the promoted foam cell formation. Furthermore, magnetite NPs exposure led to abnormal cholesterol accumulation in macrophages, which was attributed to the attenuation of cholesterol efflux and enhancement of lipoprotein uptake, but independent of cholesterol esterification. The in-depth data revealed that magnetite NPs accelerated the protein ubiquitination and subsequent degradation of SR-B1, a crucial transporter of cholesterol efflux. Collectively, these findings for the first time identified magnetite NPs as one key toxic component of PM-promoted foam cell formation, and provided new insight of abnormal cholesterol metabolism into the pathogenesis of PM-induced AS. |
doi_str_mv | 10.1093/toxsci/kfac079 |
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Fine particulate matter (PM) is a leading environmental cause for the increased morbidity and mortality of atherosclerosis (AS) worldwide, but little is known about the toxic component and disturbance of PM exposure on foam cell formation, a crucial pathological process in AS. Airborne magnetite nanoparticles (NPs) have been reported to be detected in human serum, which inevitably encounter with macrophages in atherosclerotic plaques, thus throwing potential disturbance on the formation of macrophage-derived foam cells. Here we comprehensively unveiled that the environmental concentrations of PM exposure triggered and potentiated the formation of macrophage-derived foam cells using both real-ambient PM-exposed mice and AS mice models, including high-fat diet-fed mice and apolipoprotein E-deficient mice. The in vitro model further defined the dose-dependent response of PM treatment on foam cell formation. Interestingly, airborne magnetite NPs rather than nonmagnetic NPs at the same concentration were demonstrated to be the key toxic component of PM in the promoted foam cell formation. Furthermore, magnetite NPs exposure led to abnormal cholesterol accumulation in macrophages, which was attributed to the attenuation of cholesterol efflux and enhancement of lipoprotein uptake, but independent of cholesterol esterification. The in-depth data revealed that magnetite NPs accelerated the protein ubiquitination and subsequent degradation of SR-B1, a crucial transporter of cholesterol efflux. Collectively, these findings for the first time identified magnetite NPs as one key toxic component of PM-promoted foam cell formation, and provided new insight of abnormal cholesterol metabolism into the pathogenesis of PM-induced AS.</description><identifier>ISSN: 1096-6080</identifier><identifier>EISSN: 1096-0929</identifier><identifier>DOI: 10.1093/toxsci/kfac079</identifier><language>eng</language><publisher>Oxford University Press</publisher><ispartof>Toxicological sciences, 2022-09, Vol.189 (2), p.287-300</ispartof><rights>The Author(s) 2022. Published by Oxford University Press on behalf of the Society of Toxicology. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c306t-d267b8b82d22d2afa3988a42183e01579ab824582cdab73696ee60b693e8f9563</citedby><cites>FETCH-LOGICAL-c306t-d267b8b82d22d2afa3988a42183e01579ab824582cdab73696ee60b693e8f9563</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1578,27901,27902</link.rule.ids></links><search><creatorcontrib>Yu, Haiyi</creatorcontrib><creatorcontrib>Xu, Liting</creatorcontrib><creatorcontrib>Cui, Tenglong</creatorcontrib><creatorcontrib>Wang, Yu</creatorcontrib><creatorcontrib>Wang, Baoqiang</creatorcontrib><creatorcontrib>Zhang, Ze</creatorcontrib><creatorcontrib>Su, Ruijun</creatorcontrib><creatorcontrib>Zhang, Jingxu</creatorcontrib><creatorcontrib>Zhang, Rong</creatorcontrib><creatorcontrib>Wei, Yanhong</creatorcontrib><creatorcontrib>Li, Daochuan</creatorcontrib><creatorcontrib>Jin, Xiaoting</creatorcontrib><creatorcontrib>Chen, Wen</creatorcontrib><creatorcontrib>Zheng, Yuxin</creatorcontrib><title>The Foam Cell Formation Associated With Imbalanced Cholesterol Homeostasis Due to Airborne Magnetite Nanoparticles Exposure</title><title>Toxicological sciences</title><description>Abstract
Fine particulate matter (PM) is a leading environmental cause for the increased morbidity and mortality of atherosclerosis (AS) worldwide, but little is known about the toxic component and disturbance of PM exposure on foam cell formation, a crucial pathological process in AS. Airborne magnetite nanoparticles (NPs) have been reported to be detected in human serum, which inevitably encounter with macrophages in atherosclerotic plaques, thus throwing potential disturbance on the formation of macrophage-derived foam cells. Here we comprehensively unveiled that the environmental concentrations of PM exposure triggered and potentiated the formation of macrophage-derived foam cells using both real-ambient PM-exposed mice and AS mice models, including high-fat diet-fed mice and apolipoprotein E-deficient mice. The in vitro model further defined the dose-dependent response of PM treatment on foam cell formation. Interestingly, airborne magnetite NPs rather than nonmagnetic NPs at the same concentration were demonstrated to be the key toxic component of PM in the promoted foam cell formation. Furthermore, magnetite NPs exposure led to abnormal cholesterol accumulation in macrophages, which was attributed to the attenuation of cholesterol efflux and enhancement of lipoprotein uptake, but independent of cholesterol esterification. The in-depth data revealed that magnetite NPs accelerated the protein ubiquitination and subsequent degradation of SR-B1, a crucial transporter of cholesterol efflux. Collectively, these findings for the first time identified magnetite NPs as one key toxic component of PM-promoted foam cell formation, and provided new insight of abnormal cholesterol metabolism into the pathogenesis of PM-induced AS.</description><issn>1096-6080</issn><issn>1096-0929</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNqFUMFOwzAMrRBIjMGVc45w6Ja2a5ocp7KxSQMuQxwrN3VZoG1KkkpD_DxB3R3Jkp_t9yz7BcFtRGcRFcnc6aOVav5Zg6SZOAsmvstCKmJxfsKMcnoZXFn7QWkUMSomwc_-gGStoSU5No1HpgWndEeW1mqpwGFF3pQ7kG1bQgOd9HV-0A1ah0Y3ZKNb1NaBVZY8DEicJktlSm06JE_w3qFTDskzdLoH45T0QrI69toOBq-DixoaizenPA1e16t9vgl3L4_bfLkLZUKZC6uYZSUveVzFPqCGRHAOizjiCdIozQT42SLlsaygzBImGCKjJRMJ8lqkLJkGd-Pe3uivwV9etMpK_y50qAdbxExk3qY05p46G6nSaGsN1kVvVAvmu4ho8edyMbpcnFz2gvtRoIf-P-4vcA6CqQ</recordid><startdate>20220924</startdate><enddate>20220924</enddate><creator>Yu, Haiyi</creator><creator>Xu, Liting</creator><creator>Cui, Tenglong</creator><creator>Wang, Yu</creator><creator>Wang, Baoqiang</creator><creator>Zhang, Ze</creator><creator>Su, Ruijun</creator><creator>Zhang, Jingxu</creator><creator>Zhang, Rong</creator><creator>Wei, Yanhong</creator><creator>Li, Daochuan</creator><creator>Jin, Xiaoting</creator><creator>Chen, Wen</creator><creator>Zheng, Yuxin</creator><general>Oxford University Press</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20220924</creationdate><title>The Foam Cell Formation Associated With Imbalanced Cholesterol Homeostasis Due to Airborne Magnetite Nanoparticles Exposure</title><author>Yu, Haiyi ; Xu, Liting ; Cui, Tenglong ; Wang, Yu ; Wang, Baoqiang ; Zhang, Ze ; Su, Ruijun ; Zhang, Jingxu ; Zhang, Rong ; Wei, Yanhong ; Li, Daochuan ; Jin, Xiaoting ; Chen, Wen ; Zheng, Yuxin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c306t-d267b8b82d22d2afa3988a42183e01579ab824582cdab73696ee60b693e8f9563</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yu, Haiyi</creatorcontrib><creatorcontrib>Xu, Liting</creatorcontrib><creatorcontrib>Cui, Tenglong</creatorcontrib><creatorcontrib>Wang, Yu</creatorcontrib><creatorcontrib>Wang, Baoqiang</creatorcontrib><creatorcontrib>Zhang, Ze</creatorcontrib><creatorcontrib>Su, Ruijun</creatorcontrib><creatorcontrib>Zhang, Jingxu</creatorcontrib><creatorcontrib>Zhang, Rong</creatorcontrib><creatorcontrib>Wei, Yanhong</creatorcontrib><creatorcontrib>Li, Daochuan</creatorcontrib><creatorcontrib>Jin, Xiaoting</creatorcontrib><creatorcontrib>Chen, Wen</creatorcontrib><creatorcontrib>Zheng, Yuxin</creatorcontrib><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Toxicological sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yu, Haiyi</au><au>Xu, Liting</au><au>Cui, Tenglong</au><au>Wang, Yu</au><au>Wang, Baoqiang</au><au>Zhang, Ze</au><au>Su, Ruijun</au><au>Zhang, Jingxu</au><au>Zhang, Rong</au><au>Wei, Yanhong</au><au>Li, Daochuan</au><au>Jin, Xiaoting</au><au>Chen, Wen</au><au>Zheng, Yuxin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Foam Cell Formation Associated With Imbalanced Cholesterol Homeostasis Due to Airborne Magnetite Nanoparticles Exposure</atitle><jtitle>Toxicological sciences</jtitle><date>2022-09-24</date><risdate>2022</risdate><volume>189</volume><issue>2</issue><spage>287</spage><epage>300</epage><pages>287-300</pages><issn>1096-6080</issn><eissn>1096-0929</eissn><abstract>Abstract
Fine particulate matter (PM) is a leading environmental cause for the increased morbidity and mortality of atherosclerosis (AS) worldwide, but little is known about the toxic component and disturbance of PM exposure on foam cell formation, a crucial pathological process in AS. Airborne magnetite nanoparticles (NPs) have been reported to be detected in human serum, which inevitably encounter with macrophages in atherosclerotic plaques, thus throwing potential disturbance on the formation of macrophage-derived foam cells. Here we comprehensively unveiled that the environmental concentrations of PM exposure triggered and potentiated the formation of macrophage-derived foam cells using both real-ambient PM-exposed mice and AS mice models, including high-fat diet-fed mice and apolipoprotein E-deficient mice. The in vitro model further defined the dose-dependent response of PM treatment on foam cell formation. Interestingly, airborne magnetite NPs rather than nonmagnetic NPs at the same concentration were demonstrated to be the key toxic component of PM in the promoted foam cell formation. Furthermore, magnetite NPs exposure led to abnormal cholesterol accumulation in macrophages, which was attributed to the attenuation of cholesterol efflux and enhancement of lipoprotein uptake, but independent of cholesterol esterification. The in-depth data revealed that magnetite NPs accelerated the protein ubiquitination and subsequent degradation of SR-B1, a crucial transporter of cholesterol efflux. Collectively, these findings for the first time identified magnetite NPs as one key toxic component of PM-promoted foam cell formation, and provided new insight of abnormal cholesterol metabolism into the pathogenesis of PM-induced AS.</abstract><pub>Oxford University Press</pub><doi>10.1093/toxsci/kfac079</doi><tpages>14</tpages></addata></record> |
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title | The Foam Cell Formation Associated With Imbalanced Cholesterol Homeostasis Due to Airborne Magnetite Nanoparticles Exposure |
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