PMID- 34697420 OWN - NLM STAT- MEDLINE DCOM- 20220603 LR - 20230602 IS - 1745-7254 (Electronic) IS - 1671-4083 (Print) IS - 1671-4083 (Linking) VI - 43 IP - 6 DP - 2022 Jun TI - Prenatal dexamethasone exposure programs the decreased testosterone synthesis in offspring rats by low level of endogenous glucocorticoids. PG - 1461-1472 LID - 10.1038/s41401-021-00789-z [doi] AB - Prenatal dexamethasone exposure (PDE) can decrease maternal endogenous glucocorticoid level and induce testicular dysplasia in male offspring rats. In this study we investigated low level endogenous glucocorticoid-mediated testicular dysplasia in PDE offspring and elucidated the intrauterine epigenetic programming mechanisms. Pregnant rats were injected with dexamethasone (0.2 mg.kg(-1).d(-1), sc) on gestational day (GD) 9-20. The offspring rat blood and testis were collected after euthanasia on GD20, postnatal week (PW) 12 or PW28. We showed that PDE induced abnormal morphology of testis and significantly decreased the expression of testosterone synthesis-related genes as well as testosterone production before and after birth. Meanwhile, serum corticosterone, the expression and histone 3 lysine 14 acetylation (H3K14ac) of testicular insulin-like growth factor 1 (IGF1) were significantly decreased. After the pregnant rats were subjected to chronic stress for 2 weeks (PW10-12), serum corticosterone level was increased in the adult PDE offspring, and the above-mentioned other indicators were also improved. Cultured Leydig cells (TM3) were treated with corticosterone (62.5-500 nM) in vitro. We showed that corticosterone concentration-dependently inhibited glucocorticoid receptor alpha (GRalpha) and miR-124-3p expression, increased histone deacetylase 5 (HDAC5) expression, and decreased IGF1 H3K14ac level and the expression of IGF1/steroidogenic acute regulatory protein (StAR), suggesting that corticosterone at lower than physiological level (<500 nM) inhibited testosterone synthesis by reducing H3K14ac and the expression level of IGF1 through GRalpha/miR-124-3p/HDAC5 pathway. In conclusion, PDE can cause persistent inhibition of testosterone synthesis before and after birth in the offspring rats by low level of endogenous glucocorticoids. CI - (c) 2021. The Author(s), under exclusive licence to CPS and SIMM. FAU - Liu, Min AU - Liu M AD - Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China. AD - Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China. FAU - Liu, Yi AU - Liu Y AD - Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China. FAU - Pei, Lin-Guo AU - Pei LG AD - Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China. AD - Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China. FAU - Zhang, Qi AU - Zhang Q AD - Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China. FAU - Xiao, Hao AU - Xiao H AD - Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China. FAU - Chen, Ya-Wen AU - Chen YW AD - Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China. FAU - Wang, Hui AU - Wang H AD - Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China. wanghui19@whu.edu.cn. AD - Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China. wanghui19@whu.edu.cn. LA - eng PT - Journal Article DEP - 20211025 PL - United States TA - Acta Pharmacol Sin JT - Acta pharmacologica Sinica JID - 100956087 RN - 0 (Glucocorticoids) RN - 0 (MIRN124 microRNA, rat) RN - 0 (MicroRNAs) RN - 3XMK78S47O (Testosterone) RN - 7S5I7G3JQL (Dexamethasone) RN - EC 3.5.1.98 (Hdac5 protein, rat) RN - EC 3.5.1.98 (Histone Deacetylases) RN - W980KJ009P (Corticosterone) SB - IM MH - Animals MH - Corticosterone MH - Dexamethasone/pharmacology MH - Female MH - Glucocorticoids MH - Histone Deacetylases MH - Humans MH - Male MH - *MicroRNAs MH - Pregnancy MH - *Prenatal Exposure Delayed Effects MH - Rats MH - Rats, Wistar MH - Testosterone PMC - PMC9159998 OTO - NOTNLM OT - Leydig cells (TM3) OT - dexamethasone OT - endogenous glucocorticoids OT - epigenetic modification OT - insulin-like growth factor 1 OT - prenatal exposure OT - steroidogenic acute regulatory protein OT - testis OT - testosterone synthesis COIS- The authors declare no competing interests. EDAT- 2021/10/27 06:00 MHDA- 2022/06/07 06:00 PMCR- 2023/06/01 CRDT- 2021/10/26 06:20 PHST- 2021/05/19 00:00 [received] PHST- 2021/09/29 00:00 [accepted] PHST- 2021/10/27 06:00 [pubmed] PHST- 2022/06/07 06:00 [medline] PHST- 2021/10/26 06:20 [entrez] PHST- 2023/06/01 00:00 [pmc-release] AID - 10.1038/s41401-021-00789-z [pii] AID - 789 [pii] AID - 10.1038/s41401-021-00789-z [doi] PST - ppublish SO - Acta Pharmacol Sin. 2022 Jun;43(6):1461-1472. doi: 10.1038/s41401-021-00789-z. Epub 2021 Oct 25.