PMID- 35534864 OWN - NLM STAT- MEDLINE DCOM- 20220511 LR - 20220801 IS - 1478-811X (Electronic) IS - 1478-811X (Linking) VI - 20 IP - 1 DP - 2022 May 9 TI - Follicular fluid-derived exosomal miR-143-3p/miR-155-5p regulate follicular dysplasia by modulating glycolysis in granulosa cells in polycystic ovary syndrome. PG - 61 LID - 10.1186/s12964-022-00876-6 [doi] LID - 61 AB - OBJECTIVE: Polycystic ovary syndrome (PCOS) is characterized by follicular dysplasia. An insufficient glycolysis-derived energy supply of granulosa cells (GCs) is an important cause of follicular dysplasia in PCOS. Follicular fluid (FF) exosomal microRNAs (miRNAs) have been proven to regulate the function of GCs. In this study, exosomes extracted from clinical FF samples were used for transcriptome sequencing (RNA-seq) analysis, and a human ovarian granulocyte tumour cell line (KGN cells) was used for in vitro mechanistic studies. METHODS AND RESULTS: In FF exosomal RNA-seq analysis, a decrease in glycolysis-related pathways was identified as an important feature of the PCOS group, and the differentially expressed miR-143-3p and miR-155-5p may be regulatory factors of glycolysis. By determining the effects of miR-143-3p and miR-155-5p on hexokinase (HK) 2, pyruvate kinase muscle isozyme M2 (PKM2), lactate dehydrogenase A (LDHA), pyruvate, lactate and apoptosis in KGN cells, we found that upregulated miR-143-3p expression in exosomes from the PCOS group inhibited glycolysis in KGN cells; knockdown of miR-143-3p significantly alleviated the decrease in glycolysis in KGN cells in PCOS. MiR-155-5p silencing attenuated glycolytic activation in KGN cells; overexpression of miR-155-5p significantly promoted glycolysis in KGN cells in PCOS. In this study, HK2 was found to be the mediator of miR-143-3p and miR-155-5p in FF-derived exosome-mediated regulation of glycolysis in KGN cells. Reduced glycolysis accelerated apoptosis of KGN cells, which mediated follicular dysplasia through ATP, lactate and apoptotic pathways. CONCLUSIONS: In conclusion, these results indicate that miR-143-3p and miR-155-5p in FF-derived exosomes antagonistically regulate glycolytic-mediated follicular dysplasia of GCs in PCOS. Video Abstract. CI - (c) 2022. The Author(s). FAU - Cao, Jianping AU - Cao J AD - Guangxi Key Laboratory of Environmental Exposomics and Entire Lifecycle Health, Guilin Medical University, Guilin, 541199, China. AD - State Key Laboratory for Conversation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, 530004, Guangxi, China. FAU - Huo, Peng AU - Huo P AD - Guangxi Key Laboratory of Environmental Exposomics and Entire Lifecycle Health, Guilin Medical University, Guilin, 541199, China. FAU - Cui, Kuiqing AU - Cui K AD - State Key Laboratory for Conversation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, 530004, Guangxi, China. FAU - Wei, Huimei AU - Wei H AD - Department of Reproductive Medical Center, The Affiliated Hospital of Guilin Medical University, Guilin, 541001, China. FAU - Cao, Junna AU - Cao J AD - Department of Reproductive Medical Center, The Affiliated Hospital of Guilin Medical University, Guilin, 541001, China. FAU - Wang, Jinyuan AU - Wang J AD - Department of Histology and Embryology, Clinical Anatomy and Reproductive Medicine Application Institute, University of South China, Hengyang, 421001, China. FAU - Liu, Qingyou AU - Liu Q AD - State Key Laboratory for Conversation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, 530004, Guangxi, China. FAU - Lei, Xiaocan AU - Lei X AD - Department of Histology and Embryology, Clinical Anatomy and Reproductive Medicine Application Institute, University of South China, Hengyang, 421001, China. 2019000013@usc.edu.cn. FAU - Zhang, Shun AU - Zhang S AD - Guangxi Key Laboratory of Environmental Exposomics and Entire Lifecycle Health, Guilin Medical University, Guilin, 541199, China. artzhangshun@glmc.edu.cn. AD - Department of Reproductive Medical Center, The Affiliated Hospital of Guilin Medical University, Guilin, 541001, China. artzhangshun@glmc.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Video-Audio Media DEP - 20220509 PL - England TA - Cell Commun Signal JT - Cell communication and signaling : CCS JID - 101170464 RN - 0 (Lactates) RN - 0 (MIRN143 microRNA, human) RN - 0 (MIRN155 microRNA, human) RN - 0 (MicroRNAs) SB - IM EIN - Cell Commun Signal. 2022 Aug 1;20(1):116. PMID: 35915462 MH - Cell Proliferation MH - Female MH - Follicular Fluid/metabolism MH - Glycolysis MH - Granulosa Cells/metabolism/pathology MH - Humans MH - Lactates/metabolism MH - *MicroRNAs/genetics/metabolism MH - *Polycystic Ovary Syndrome/genetics/metabolism/pathology PMC - PMC9082924 OTO - NOTNLM OT - Exosomes OT - Glycolysis OT - HK2 OT - Polycystic ovary syndrome OT - miR-143-3p OT - miR-155-5p COIS- None. EDAT- 2022/05/10 06:00 MHDA- 2022/05/12 06:00 PMCR- 2022/05/09 CRDT- 2022/05/09 23:37 PHST- 2022/01/18 00:00 [received] PHST- 2022/04/02 00:00 [accepted] PHST- 2022/05/09 23:37 [entrez] PHST- 2022/05/10 06:00 [pubmed] PHST- 2022/05/12 06:00 [medline] PHST- 2022/05/09 00:00 [pmc-release] AID - 10.1186/s12964-022-00876-6 [pii] AID - 876 [pii] AID - 10.1186/s12964-022-00876-6 [doi] PST - epublish SO - Cell Commun Signal. 2022 May 9;20(1):61. doi: 10.1186/s12964-022-00876-6.