PMID- 34867366 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220120 IS - 1663-9812 (Print) IS - 1663-9812 (Electronic) IS - 1663-9812 (Linking) VI - 12 DP - 2021 TI - 9-PAHSA Improves Cardiovascular Complications by Promoting Autophagic Flux and Reducing Myocardial Hypertrophy in Db/Db Mice. PG - 754387 LID - 10.3389/fphar.2021.754387 [doi] LID - 754387 AB - Atherosclerotic cardiovascular disease is a common and severe complication of diabetes. There is a large need to identify the effective and safety strategies on diabetic cardiovascular disease (DCVD). 9-PAHSA is a novel endogenous fatty acid, and has been reported to reduce blood glucose levels and attenuate inflammation. We aim to evaluate the effects of 9-PAHSA on DCVD and investigate the possible mechanisms underlying it. Firstly, serum 9-PAHSA levels in human were detected by HPLC-MS/MS analysis. Then 9-PAHSA was synthesized and purified. The synthesized 9-PAHSA was gavaged to db/db mice with 50 mg/kg for 4 weeks. The carotid arterial plaque and cardiac structure was assessed by ultrasound. Cardiac autophagy was tested by western blot analysis, electron microscope and iTRAQ. The results showed that 9-PAHSA, in patients with type 2 diabetes mellitus (T2DM), was significantly lower than that in non-diabetic subjects. Administration of 9-PAHSA for 2 weeks reduced blood glucose levels. Ultrasound observed that continue administration of 9-PAHSA for 4 weeks ameliorated carotid vascular calcification, and attenuated myocardial hypertrophy and dysfunction in db/db mice. Electron microscopy showed continue 9-PAHSA treatment significantly increased autolysosomes, while dramatically decreased greases in the myocardial cells of the db/db mice. Moreover, iTRAQ analysis exhibited that continue 9-PAHSA treatment upregulated BAG3 and HSPB8. Furthermore, western blot analysis confirmed that 9-PAHSA down-regulated Akt/mTOR and activated PI3KIII/BECN1 complex in diabetic myocardium. Thus, 9-PAHSA benefits DCVD in diabetic mice by ameliorating carotid vascular calcification, promoting autophagic flux and reducing myocardial hypertrophy. CI - Copyright (c) 2021 Wang, Mi, Jin, Guo, Yu, Wang, Zhang, Zhang, Wang, Huang, Zhou and Guo. FAU - Wang, Yan-Mei AU - Wang YM AD - Department of Geriatrics of Huashan Hospital, National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China. FAU - Mi, Shou-Ling AU - Mi SL AD - Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China. FAU - Jin, Hong AU - Jin H AD - Shanghai Stomatological Hospital & Institutes of Biomedical Sciences, Fudan University, Shanghai, China. FAU - Guo, Qi-Lin AU - Guo QL AD - Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai & State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China. FAU - Yu, Zhong-Yu AU - Yu ZY AD - Department of Geriatrics of Huashan Hospital, National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China. FAU - Wang, Jian-Tao AU - Wang JT AD - Department of Geriatrics of Huashan Hospital, National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China. FAU - Zhang, Xiao-Ming AU - Zhang XM AD - Department of Geriatrics of Huashan Hospital, National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China. FAU - Zhang, Qian AU - Zhang Q AD - Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai & State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China. FAU - Wang, Na-Na AU - Wang NN AD - Department of Geriatrics of Huashan Hospital, National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China. FAU - Huang, Yan-Yan AU - Huang YY AD - Department of Geriatrics of Huashan Hospital, National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China. FAU - Zhou, Hou-Guang AU - Zhou HG AD - Department of Geriatrics of Huashan Hospital, National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China. FAU - Guo, Jing-Chun AU - Guo JC AD - Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai & State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China. LA - eng PT - Journal Article DEP - 20211115 PL - Switzerland TA - Front Pharmacol JT - Frontiers in pharmacology JID - 101548923 EIN - Front Pharmacol. 2022 Jan 03;12:827490. PMID: 35046833 PMC - PMC8634679 OTO - NOTNLM OT - 9-PAHSA OT - autophagy OT - diabetic cardiovascular complications OT - myocardial hypertrophy OT - vascular calcification COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2021/12/07 06:00 MHDA- 2021/12/07 06:01 PMCR- 2021/11/15 CRDT- 2021/12/06 09:04 PHST- 2021/08/06 00:00 [received] PHST- 2021/10/11 00:00 [accepted] PHST- 2021/12/06 09:04 [entrez] PHST- 2021/12/07 06:00 [pubmed] PHST- 2021/12/07 06:01 [medline] PHST- 2021/11/15 00:00 [pmc-release] AID - 754387 [pii] AID - 10.3389/fphar.2021.754387 [doi] PST - epublish SO - Front Pharmacol. 2021 Nov 15;12:754387. doi: 10.3389/fphar.2021.754387. eCollection 2021.