PMID- 36626243 OWN - NLM STAT- MEDLINE DCOM- 20230124 LR - 20231124 IS - 1945-4589 (Electronic) IS - 1945-4589 (Linking) VI - 15 IP - 1 DP - 2023 Jan 9 TI - Mitoquinone shifts energy metabolism to reduce ROS-induced oxeiptosis in female granulosa cells and mouse oocytes. PG - 246-260 LID - 10.18632/aging.204475 [doi] AB - The female reproductive system is quite sensitive to regulation, and external environmental stimuli may cause oxidative stress which in turn may lead to accelerated aging and programmed cell death in female reproductive cells. The aim of this study was to investigate whether or not mitoquinone (MitoQ) could resist ROS-induced apoptosis in human granulosa cells and mouse oocytes. We found that the MitoQ treatment significantly reduced production of reactive oxygen species (ROS) and imbalance in mitochondrial membrane potential. The MitoQ treatment prevented an excessive mitochondrial fragmentation by upregulating Drp1 S637 and decreasing Drp1 S637 phosphorylation. More importantly, MitoQ maintained aerobic respiration and reduced anaerobic respiration by regulating reprogramming of intracellular energy metabolism, which enhanced cellular ATP production. MitoQ effectively reduced the expressions of AIFM1 and PGAM5, key molecules whose expressions were reversed not only in granulosa cells but also in mouse oocytes. Our findings suggest that MitoQ can ameliorate the mitochondrial deterioration caused by ROS and reprogram cellular energy metabolism, providing protection to cells against apoptosis. The presence of MitoQ may help in protecting human germ cells under in vitro culture conditions. FAU - Tsui, Kuan-Hao AU - Tsui KH AD - Department of Obstetrics and Gynaecology, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan. AD - Institute of Biopharmaceutical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan. AD - Department of Obstetrics and Gynaecology, National Yang-Ming University School of Medicine, Taipei 112, Taiwan. AD - Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei 112, Taiwan. AD - Department of Pharmacy and Master Program, College of Pharmacy and Health Care, Tajen University, Pingtung County 907, Taiwan. AD - Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan. AD - College of Health and Nursing, Meiho University, Pingtung County 912, Taiwan. FAU - Li, Chia-Jung AU - Li CJ AD - Department of Obstetrics and Gynaecology, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan. AD - Institute of Biopharmaceutical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230109 PL - United States TA - Aging (Albany NY) JT - Aging JID - 101508617 RN - 0 (Reactive Oxygen Species) RN - 0 (Antioxidants) SB - IM MH - Mice MH - Female MH - Humans MH - Animals MH - Reactive Oxygen Species/metabolism MH - *Antioxidants/pharmacology MH - *Oocytes/metabolism MH - Energy Metabolism MH - Granulosa Cells/metabolism PMC - PMC9876626 OTO - NOTNLM OT - MitoQ OT - ROS OT - metabolism OT - mitochondria OT - oxeiptosis COIS- CONFLICTS OF INTEREST: The authors declare no conflicts of interest related to this study. EDAT- 2023/01/11 06:00 MHDA- 2023/01/25 06:00 PMCR- 2023/01/15 CRDT- 2023/01/10 12:22 PHST- 2022/08/30 00:00 [received] PHST- 2022/12/16 00:00 [accepted] PHST- 2023/01/11 06:00 [pubmed] PHST- 2023/01/25 06:00 [medline] PHST- 2023/01/10 12:22 [entrez] PHST- 2023/01/15 00:00 [pmc-release] AID - 204475 [pii] AID - 10.18632/aging.204475 [doi] PST - ppublish SO - Aging (Albany NY). 2023 Jan 9;15(1):246-260. doi: 10.18632/aging.204475. Epub 2023 Jan 9.