PMID- 29343424 OWN - NLM STAT- MEDLINE DCOM- 20180724 LR - 20180724 IS - 1096-0333 (Electronic) IS - 0041-008X (Linking) VI - 341 DP - 2018 Feb 15 TI - IGF1/MAPK/ERK signaling pathway-mediated programming alterations of adrenal cortex cell proliferation by prenatal caffeine exposure in male offspring rats. PG - 64-76 LID - S0041-008X(18)30008-5 [pii] LID - 10.1016/j.taap.2018.01.008 [doi] AB - Our previous study proposed a glucocorticoid-insulin-like growth factor 1 (GC-IGF1) axis programming mechanism for prenatal caffeine exposure (PCE)-induced adrenal developmental dysfunction. Here, we focused on PCE-induced cell proliferation changes of the adrenal cortex in male offspring rats before and after birth and clarified the intrauterine programming mechanism. On gestational day (GD) 20, the PCE group had an elevated serum corticosterone level reduced fetal bodyweight, maximum adrenal sectional area, and elevated adrenal corticosterone and aldosterone contents. However, in postnatal week (PW) 6, the serum corticosterone level was decreased, and the bodyweight, with catch-up growth, adrenal cortex maximum cross-sectional area and aldosterone content were relatively increased, while the adrenal corticosterone content was lower. On GD20, the expression of adrenal IGF1, IGF1R and proliferating cell nuclear antigen (PCNA) were decreased, while the expression of these factors at PW6 were increased in the PCE group. Fetal adrenal gene chip analysis suggested that the mitogen-activated protein kinase/extracellular regulated protein kinase (MAPK/ERK) signal pathway was suppressed in the PCE group. Moreover, in the rat primary adrenal cells, corticosterone (rather than caffeine) was shown to significantly inhibit cell proliferation, IGF1 and PCNA expression, and ERK phosphorylation, which could be reversed by exogenous IGF1. Meanwhile, the effects of exogenous IGF1 were reversed by the ERK pathway inhibitor (PD184161). In conclusion, PCE could induce programming alterations in adrenal cortical cell proliferation before and after birth in male offspring rats. The underlying mechanism is associated with the inhibition of fetal adrenal IGF1-related MAPK/ERK signaling pathway caused by high glucocorticoid levels. CI - Copyright (c) 2018 Elsevier Inc. All rights reserved. FAU - Chen, Guanghui AU - Chen G AD - Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan 430071, China. FAU - Yuan, Chao AU - Yuan C AD - Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan 430071, China. FAU - Duan, Fangfang AU - Duan F AD - Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan 430071, China. FAU - Liu, Yanyan AU - Liu Y AD - Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan 430071, China. FAU - Zhang, Jinzhi AU - Zhang J AD - Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan 430071, China. FAU - He, Zheng AU - He Z AD - Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan 430071, China. FAU - Huang, Hegui AU - Huang H AD - Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan 430071, China. FAU - He, Chunjiang AU - He C AD - Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China. 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 - 20180116 PL - United States TA - Toxicol Appl Pharmacol JT - Toxicology and applied pharmacology JID - 0416575 RN - 0 (insulin-like growth factor-1, rat) RN - 3G6A5W338E (Caffeine) RN - 67763-96-6 (Insulin-Like Growth Factor I) SB - IM MH - Adrenal Cortex/cytology/drug effects/*metabolism MH - Animals MH - Body Weight/drug effects/physiology MH - Caffeine/administration & dosage/*toxicity MH - Cell Proliferation/drug effects/*physiology MH - Cells, Cultured MH - Cellular Reprogramming/drug effects/physiology MH - Dose-Response Relationship, Drug MH - Female MH - Insulin-Like Growth Factor I/antagonists & inhibitors/*metabolism MH - MAP Kinase Signaling System/drug effects/*physiology MH - Male MH - Pregnancy MH - Prenatal Exposure Delayed Effects/chemically induced/*metabolism MH - Random Allocation MH - Rats MH - Rats, Wistar OTO - NOTNLM OT - Adrenal cell proliferation OT - Glucocorticoid OT - Insulin-like growth factor 1 OT - Mitogen-activated protein kinase/extracellular signal-regulated kinase OT - Prenatal caffeine exposure EDAT- 2018/01/19 06:00 MHDA- 2018/07/25 06:00 CRDT- 2018/01/19 06:00 PHST- 2017/08/25 00:00 [received] PHST- 2018/01/01 00:00 [revised] PHST- 2018/01/12 00:00 [accepted] PHST- 2018/01/19 06:00 [pubmed] PHST- 2018/07/25 06:00 [medline] PHST- 2018/01/19 06:00 [entrez] AID - S0041-008X(18)30008-5 [pii] AID - 10.1016/j.taap.2018.01.008 [doi] PST - ppublish SO - Toxicol Appl Pharmacol. 2018 Feb 15;341:64-76. doi: 10.1016/j.taap.2018.01.008. Epub 2018 Jan 16.