PMID- 31075344 OWN - NLM STAT- MEDLINE DCOM- 20200515 LR - 20200515 IS - 1096-0333 (Electronic) IS - 0041-008X (Linking) VI - 375 DP - 2019 Jul 15 TI - Glucocorticoid programming mechanism for hypercholesterolemia in prenatal ethanol-exposed adult offspring rats. PG - 46-56 LID - S0041-008X(19)30165-6 [pii] LID - 10.1016/j.taap.2019.05.002 [doi] AB - Our previous studies showed that prenatal ethanol exposure (PEE) elevated blood total cholesterol (TCH) level in adult offspring rats. This study was aimed at elucidating the intrauterine programming mechanism of hypercholesterolemia in adult rats induced by PEE. Pregnant Wistar rats were intragastrically administered ethanol (4 mg/kg∙d) from gestational day (GD) 9 to 20. The offspring rats were euthanized at GD20 and postnatal week 24. Results showed that PEE decreased serum TCH and HDL-C levels (female and male) as well as LDL-C level (female only) in fetal rats but increased serum TCH level and the TCH/HDL-C and LDL-C/HDL-C ratios in adult rats. Furthermore, PEE elevated serum corticosterone levels but inhibited hepatic insulin-like growth factor 1 (IGF1) signaling pathway, cholesterol synthesis and output in fetal rats. The conversed changes were observed in adult rats. Moreover, histone acetylation (H3K9ac and H3K14ac) and expression of hepatic reverse cholesterol transport (RCT) related genes, scavenger receptor BI and low-density lipoprotein receptor were decreased before and after birth by PEE. In HepG2 cells, cortisol negatively regulated the IGF1 signaling pathway and cholesterol metabolic genes, but this inhibition of the cholesterol metabolic genes could be reversed by glucocorticoid receptor antagonist RU486, whereas exogenous IGF1 treatment only reversed the downregulation of RCT genes by cortisol. We confirmed a "two programming" mechanism for PEE-induced hypercholesterolemia in adult rats. The "first programming" was a glucocorticoid (GC)-induced persistent reduction of RCT genes by epigenetic modifications, and the "second programming" was the negative regulation of cholesterol synthesis and output by the GC-IGF1 axis. CI - Copyright (c) 2019 Elsevier Inc. All rights reserved. FAU - Hu, Shuwei AU - Hu S AD - Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan 430071, China. FAU - Qin, Jun AU - Qin J AD - Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China. FAU - Zhou, Jin AU - Zhou J AD - Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan 430071, China. FAU - Magdalou, Jacques AU - Magdalou J AD - UMR 7561, CNRS-Universite de Lorraine, Faculte de Medicine, Vandoeuvre-les-Nancy, France. FAU - Chen, Liaobin AU - Chen L AD - Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China. FAU - Xu, Dan AU - Xu D AD - Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China. Electronic address: xuyidan70188@whu.edu.cn. FAU - Wang, Hui AU - Wang H AD - Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China. Electronic address: wanghui19@whu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190508 PL - United States TA - Toxicol Appl Pharmacol JT - Toxicology and applied pharmacology JID - 0416575 RN - 0 (Glucocorticoids) RN - 0 (Histones) RN - 0 (Somatomedins) RN - 3K9958V90M (Ethanol) RN - 97C5T2UQ7J (Cholesterol) SB - IM MH - Acetylation MH - Animals MH - Cholesterol/*blood MH - Ethanol/*toxicity MH - Female MH - Fetal Blood MH - Gene Expression Regulation, Developmental/drug effects MH - Glucocorticoids/*metabolism MH - Hep G2 Cells MH - Histones/metabolism MH - Humans MH - Hypercholesterolemia/*etiology MH - Liver/drug effects/metabolism MH - Male MH - Pregnancy MH - *Prenatal Exposure Delayed Effects MH - Rats MH - Rats, Wistar MH - Somatomedins MH - Specific Pathogen-Free Organisms OTO - NOTNLM OT - Glucocorticoid OT - Hepatic cholesterol metabolism OT - Histone acetylation OT - Hypercholesterolemia OT - Insulin-like growth factor 1 EDAT- 2019/05/11 06:00 MHDA- 2020/05/16 06:00 CRDT- 2019/05/11 06:00 PHST- 2019/01/25 00:00 [received] PHST- 2019/04/18 00:00 [revised] PHST- 2019/05/06 00:00 [accepted] PHST- 2019/05/11 06:00 [pubmed] PHST- 2020/05/16 06:00 [medline] PHST- 2019/05/11 06:00 [entrez] AID - S0041-008X(19)30165-6 [pii] AID - 10.1016/j.taap.2019.05.002 [doi] PST - ppublish SO - Toxicol Appl Pharmacol. 2019 Jul 15;375:46-56. doi: 10.1016/j.taap.2019.05.002. Epub 2019 May 8.