PMID- 37495868 OWN - NLM STAT- MEDLINE DCOM- 20231204 LR - 20240320 IS - 1573-6822 (Electronic) IS - 0742-2091 (Linking) VI - 39 IP - 6 DP - 2023 Dec TI - Hyperhomocysteinemia lowers serum testosterone concentration via impairing testosterone production in Leydig cells. PG - 3077-3100 LID - 10.1007/s10565-023-09819-4 [doi] AB - Hyperhomocysteinemia (HHcy) plays a salient role in male infertility. However, whether HHcy interferes with testosterone production remains inconclusive. Here, we reported a lower serum testosterone level in HHcy mice. Single-cell RNA sequencing revealed that genes related to testosterone biosynthesis, together with nuclear receptor subfamily 5 group A member 1 (Nr5a1), a key transcription factor for steroidogenic genes, were downregulated in the Leydig cells (LCs) of HHcy mice. Mechanistically, Hcy lowered trimethylation of histone H3 on lysine 4 (H3K4me3), which was bound on the promoter region of Nr5a1, resulting in downregulation of Nr5a1. Intriguingly, we identified an unknown cell cluster annotated as Macrophage-like Leydig cells (McLCs), expressing both LCs and macrophages markers. In HHcy mice, McLCs were shifted toward pro-inflammatory phenotype and thus promoted inflammatory response in LC. Betaine supplementation rescued the downregulation of NR5A1 and restored the serum testosterone level in HHcy mice. Overall, our study highlights an etiological role of HHcy in LCs dysfunction. CI - (c) 2023. The Author(s), under exclusive licence to Springer Nature B.V. FAU - Su, Zhiyuan AU - Su Z AD - The State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China. FAU - Liu, Zhuoliang AU - Liu Z AD - The State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China. FAU - Lei, Wenjing AU - Lei W AD - Department of Nephrology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China. FAU - Xia, Kai AU - Xia K AD - Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, China. AD - National-Local Joint Engineering Research Center for Stem Cells and Regenerative Medicine, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, China. FAU - Xiao, An AU - Xiao A AD - The State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China. FAU - Hu, Zheng AU - Hu Z AD - The State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China. FAU - Zhou, Miaomiao AU - Zhou M AD - The State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China. FAU - Zhu, Fengxin AU - Zhu F AD - The State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China. FAU - Tian, Jianwei AU - Tian J AD - The State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China. FAU - Yang, Manqiu AU - Yang M AD - The State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China. FAU - Wang, Dong AU - Wang D AD - Department of Bioinformatics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, Guangdong, China. FAU - Xiang, Andy Peng AU - Xiang AP AD - Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, China. AD - National-Local Joint Engineering Research Center for Stem Cells and Regenerative Medicine, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, China. FAU - Nie, Jing AU - Nie J AD - The State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China. niejing@smu.edu.cn. LA - eng GR - 81900609/Nature and Science Foundation of China/ GR - 81730019/Nature and Science Foundation of China/ GR - 2019B1515120075/Nature and Science Foundation of Guangdong province/ GR - 2018GZR110102004/Outstanding Scholar Program of Guangzhou Regenerative Medicine and Health Guangdong Laboratory/ PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230727 PL - Switzerland TA - Cell Biol Toxicol JT - Cell biology and toxicology JID - 8506639 RN - 3XMK78S47O (Testosterone) RN - 0 (Transcription Factors) SB - IM MH - Mice MH - Male MH - Animals MH - *Leydig Cells/metabolism MH - Testosterone MH - *Hyperhomocysteinemia/metabolism MH - Macrophages/metabolism MH - Transcription Factors/genetics OTO - NOTNLM OT - Hyperhomocysteinemia OT - Leydig cell OT - Single-cell RNA sequencing OT - Testosterone EDAT- 2023/07/27 01:09 MHDA- 2023/12/04 12:42 CRDT- 2023/07/26 23:33 PHST- 2022/12/29 00:00 [received] PHST- 2023/07/12 00:00 [accepted] PHST- 2023/12/04 12:42 [medline] PHST- 2023/07/27 01:09 [pubmed] PHST- 2023/07/26 23:33 [entrez] AID - 10.1007/s10565-023-09819-4 [pii] AID - 10.1007/s10565-023-09819-4 [doi] PST - ppublish SO - Cell Biol Toxicol. 2023 Dec;39(6):3077-3100. doi: 10.1007/s10565-023-09819-4. Epub 2023 Jul 27.