PMID- 37525913 OWN - NLM STAT- Publisher LR - 20230801 IS - 2768-6698 (Electronic) IS - 2768-6698 (Linking) VI - 28 IP - 7 DP - 2023 Jul 19 TI - A Metabolomics-Based Study on NMDAR-Mediated Mitochondrial Damage through Calcium Overload and ROS Accumulation in Myocardial Infarction. PG - 140 LID - 10.31083/j.fbl2807140 [doi] AB - BACKGROUND: Coronary artery disease is a leading public health problem. However, the mechanisms underlying mitochondrial damage remain unclear. The present study verified and explored the novel mechanisms underlying ischemic injury based on a metabolomic analysis. METHODS: Mouse models of acute myocardial infarction were established, and serum samples were collected for targeted liquid chromatography with tandem mass spectrometry analysis. Based on metabolomic analyses, the N-methyl-d-aspartic acid receptor (NMDAR)-related calcium transporting signaling pathway was selected. Primary cardiomyocyte cultures were used, and N-methyl-d-aspartic acid (NMDA) was used as an agonist to confirm the role of NMDAR in ischemic injury. In addition, Bax, Bcl-2, mitochondrial calcium, potential, and mitochondrial reactive oxygen species accumulation were used to explore the role of NMDAR in mitochondrial damage-induced apoptosis. RESULTS: Glutamate-related metabolism was significantly altered following in acute myocardial infarction. NMDA induces apoptosis under hypoxic conditions NMDAR was translocated to the mitochondrial-related membrane after activation, and its mitochondrial expression was significantly increased (p < 0.05). Mitochondrial damage-induced apoptosis was significantly inhibited by a selective NDMAR antagonist (p < 0.05), while Bax expression was remarkably decreased and Bcl-2 expression was increased (p < 0.05). To further explore the mechanism of NMDAR, mitochondrial calcium, membrane potential, and reactive oxygen species were detected. With NMDAR inhibition under hypoxic conditions, mitochondrial morphology and function were preserved (p < 0.05). CONCLUSIONS: Our metabolomic study identified NMDAR as a promising target. In conclusion, our study provides solid data for further studies of the role of NMDAR in cardiovascular diseases and a promising target to interfere with apoptosis in acute myocardial infarction. CI - (c) 2023 The Author(s). Published by IMR Press. FAU - Wang, Yuanyuan AU - Wang Y AD - Department of Cardiovascular Surgery, West China Hospital, Sichuan University, 610007 Chengdu, Sichuan, China. FAU - He, Li AU - He L AD - Department of Cardiovascular Surgery, West China Hospital, Sichuan University, 610007 Chengdu, Sichuan, China. AD - Cardiovascular Surgery Research Laboratory, West China Hospital, Sichuan University, 610007 Chengdu, Sichuan, China. FAU - Du, Dan AU - Du D AD - West China - Washington Mitochondria and Metabolism Center, West China Hospital, Sichuan University, 610007 Chengdu, Sichuan, China. FAU - Cheng, Zeyi AU - Cheng Z AD - Department of Cardiovascular Surgery, West China Hospital, Sichuan University, 610007 Chengdu, Sichuan, China. FAU - Qin, Chaoyi AU - Qin C AD - Department of Cardiovascular Surgery, West China Hospital, Sichuan University, 610007 Chengdu, Sichuan, China. AD - Cardiovascular Surgery Research Laboratory, West China Hospital, Sichuan University, 610007 Chengdu, Sichuan, China. LA - eng GR - 81900311/National Natural Science Foundation of China/ GR - 2022YFS0364/Science and Technology Agency Foundation of Sichuan province/ PT - Journal Article PL - Singapore TA - Front Biosci (Landmark Ed) JT - Frontiers in bioscience (Landmark edition) JID - 101612996 SB - IM OTO - NOTNLM OT - NMDAR OT - calcium overload OT - metabolomics OT - mitochondrial damage OT - myocardial infarction COIS- The authors declare no conflict of interest. EDAT- 2023/08/01 06:45 MHDA- 2023/08/01 06:45 CRDT- 2023/08/01 03:52 PHST- 2022/12/12 00:00 [received] PHST- 2023/03/16 00:00 [revised] PHST- 2023/03/21 00:00 [accepted] PHST- 2023/08/01 06:45 [medline] PHST- 2023/08/01 06:45 [pubmed] PHST- 2023/08/01 03:52 [entrez] AID - S2768-6701(23)00843-2 [pii] AID - 10.31083/j.fbl2807140 [doi] PST - ppublish SO - Front Biosci (Landmark Ed). 2023 Jul 19;28(7):140. doi: 10.31083/j.fbl2807140.