PMID- 35621139 OWN - NLM STAT- MEDLINE DCOM- 20220530 LR - 20220716 IS - 1791-3004 (Electronic) IS - 1791-2997 (Print) IS - 1791-2997 (Linking) VI - 26 IP - 1 DP - 2022 Jul TI - N‑acetyl cysteine prevents ambient fine particulate matter‑potentiated atherosclerosis via inhibition of reactive oxygen species‑induced oxidized low density lipoprotein elevation and decreased circulating endothelial progenitor cell. LID - 236 [pii] LID - 10.3892/mmr.2022.12752 [doi] AB - Ambient fine particulate matter (PM) serves an important role in the development of cardiovascular disease, including atherosclerosis. Antioxidant N‑acetyl cysteine (NAC) has protective effects in the cardiovascular system. However, it is unknown if NAC prevents PM‑potentiated atherosclerosis in hyperlipidemia. Low‑density lipoprotein (LDL) receptor knockout mice were pretreated with 1 mg/ml NAC in drinking water for 1 week and continued to receive NAC, high‑fat diet and intranasal instillation of PM for 1 week or 6 months. Blood plasma was collected for lipid profile, oxidized (ox‑)LDL, blood reactive oxygen species (ROS) and inflammatory cytokine (TNF‑alpha, IL‑1beta and IL‑6) measurement. Blood cells were harvested for endothelial progenitor cell (EPC) population and intracellular ROS analysis. Murine aorta was isolated for atherosclerotic plaque ratio calculation. NAC treatment maintained circulating EPC level and significantly decreased blood ox‑LDL and ROS, inflammatory cytokines, mononuclear and EPC intracellular ROS levels as well as aortic plaque ratio. NAC prevented PM‑potentiated atherosclerosis by inhibiting plasma ROS‑induced ox‑LDL elevation, mononuclear cell and EPC intracellular ROS‑induced circulating EPC reduction and inflammatory cytokine production. FAU - Xu, Yixin AU - Xu Y AD - Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China. FAU - Bu, Haoran AU - Bu H AD - Department of Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, P.R. China. FAU - Jiang, Yufan AU - Jiang Y AD - Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China. FAU - Zhuo, Xiaoqing AU - Zhuo X AD - Department of Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, P.R. China. FAU - Hu, Ke AU - Hu K AD - Department of Emergency, Qianfoshan Hospital, Shandong First Medical University, Jinan, Shandong 250014, P.R. China. FAU - Si, Zhihua AU - Si Z AD - Department of Emergency, Qianfoshan Hospital, Shandong First Medical University, Jinan, Shandong 250014, P.R. China. FAU - Chen, Yong AU - Chen Y AD - Department of Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, P.R. China. FAU - Liu, Qiwei AU - Liu Q AD - Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China. FAU - Gong, Xianwei AU - Gong X AD - Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China. FAU - Sun, Haihui AU - Sun H AD - Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China. FAU - Zhu, Qingyi AU - Zhu Q AD - Department of Cardiovascular Medicine, Second Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China. FAU - Cui, Lianqun AU - Cui L AD - Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China. FAU - Ma, Xiaochun AU - Ma X AD - Department of Cardiovascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China. FAU - Cui, Yuqi AU - Cui Y AD - Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China. LA - eng PT - Journal Article DEP - 20220527 PL - Greece TA - Mol Med Rep JT - Molecular medicine reports JID - 101475259 RN - 0 (Lipoproteins, LDL) RN - 0 (Particulate Matter) RN - 0 (Reactive Oxygen Species) RN - 0 (oxidized low density lipoprotein) RN - WYQ7N0BPYC (Acetylcysteine) SB - IM MH - Acetylcysteine/pharmacology MH - Animals MH - *Atherosclerosis/drug therapy MH - *Endothelial Progenitor Cells MH - Lipoproteins, LDL/pharmacology MH - Mice MH - Particulate Matter/toxicity MH - Reactive Oxygen Species PMC - PMC9185698 OTO - NOTNLM OT - N‑acetyl cysteine OT - air pollution OT - endothelial progenitor cells OT - hyperlipidemia OT - inflammation OT - oxidized low density lipoprotein OT - particulate matter OT - reactive oxygen species COIS- The authors declare that they have no competing interests. EDAT- 2022/05/28 06:00 MHDA- 2022/05/31 06:00 PMCR- 2022/05/27 CRDT- 2022/05/27 06:42 PHST- 2022/03/11 00:00 [received] PHST- 2022/05/09 00:00 [accepted] PHST- 2022/05/27 06:42 [entrez] PHST- 2022/05/28 06:00 [pubmed] PHST- 2022/05/31 06:00 [medline] PHST- 2022/05/27 00:00 [pmc-release] AID - 236 [pii] AID - MMR-26-01-12752 [pii] AID - 10.3892/mmr.2022.12752 [doi] PST - ppublish SO - Mol Med Rep. 2022 Jul;26(1):236. doi: 10.3892/mmr.2022.12752. Epub 2022 May 27.