PMID- 36396078 OWN - NLM STAT- MEDLINE DCOM- 20221216 LR - 20221222 IS - 1873-7064 (Electronic) IS - 0028-3908 (Linking) VI - 223 DP - 2023 Feb 1 TI - Impact of prenatal amoxicillin exposure on hippocampal development deficiency. PG - 109331 LID - S0028-3908(22)00390-2 [pii] LID - 10.1016/j.neuropharm.2022.109331 [doi] AB - BACKGROUND: Amoxicillin has been widely used to treat infectious diseases during pregnancy. Current studies suggest that amoxicillin exposure during pregnancy could lead to developmental disorders in the offspring and increase the incidence of long-term complications such as asthma and kidney damage in adulthood. However, the adverse effects of prenatal amoxicillin exposure (PAmE) including administration stage, doses and courses on fetal hippocampal neurodevelopment and its function in the offspring have not been elucidated. In this study, we intend to investigate the effects of PAmE on fetal hippocampal development and its possible mechanisms. METHOD: Pregnant Kunming mice were given intragastric administration with amoxicillin at different administration stage, doses and courses, and GD (gestational day) 18 offspring hippocampus was collected for morphological and development-related functional assays, and the molecular mechanisms were explored. RESULTS: PAmE induced hippocampal hypoplasia in the offspring with suppressed hippocampal neuronal cell proliferation and impaired neuronal synaptic plasticity comparatively; hippocampal astrocyte and microglia were damaged to varying degrees. The developmental toxicity of PAmE in fetal mices varies by time, dose, and course of treatment. The most severe damage was observed in the late gestation, high dose, and multi-course dosing groups. The significant reduction either in SOX2, an essential gene in regulating neural progenitor cell proliferation, and reduction of genes related to the Wnt/beta-catenin pathway may suggest that the key role of SOX2/Wnt/beta-catenin pathway in impaired hippocampal development in the offspring due to PAmE. CONCLUSION: In this study, PAmE was found to be developmentally toxic to the hippocampus thus to induce developmental damage to various hippocampal cells; Even with current clinically safe doses, potential hippocampal damage to offspring may still present; This study provides a theoretical and experimental basis for guiding the rational usage of drugs during pregnancy and giving effectively assessment of the risk on fetal hippocampal developmental toxicity. CI - Copyright (c) 2022 Elsevier Ltd. All rights reserved. FAU - Qin, Jiaxin AU - Qin J AD - Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China; Department of Pediatrics, Renmin Hospital of Wuhan University, Wuhan, China. FAU - Yao, Baozhen AU - Yao B AD - Department of Pediatrics, Renmin Hospital of Wuhan University, Wuhan, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China. FAU - Xie, Lulu AU - Xie L AD - Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China; Department of Pediatrics, Renmin Hospital of Wuhan University, Wuhan, China. FAU - Wang, Tingting AU - Wang T AD - Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China. FAU - Zhang, Shuai AU - Zhang S AD - Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China. FAU - Luo, Mingcui AU - Luo M AD - Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China. FAU - Wang, Hui AU - Wang H AD - Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China. FAU - Xu, Dan AU - Xu D AD - Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China; Department of Pharmacy, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, China. Electronic address: xuyidan70188@whu.edu.cn. FAU - Peng, Biwen AU - Peng B AD - Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China; Department of Physiology, School of Basic Medical Sciences, Wuhan University, Wuhan, China. Electronic address: pengbiwen@whu.edu.cn. LA - eng PT - Journal Article DEP - 20221114 PL - England TA - Neuropharmacology JT - Neuropharmacology JID - 0236217 RN - 0 (beta Catenin) RN - 804826J2HU (Amoxicillin) RN - Kunming mice SB - IM MH - Mice MH - Animals MH - Female MH - Humans MH - Pregnancy MH - *beta Catenin/metabolism MH - *Prenatal Exposure Delayed Effects/metabolism MH - Amoxicillin/toxicity/metabolism MH - Hippocampus OTO - NOTNLM OT - Amoxicillin OT - Glial cells OT - Hippocampus OT - Medication safety during pregnancy OT - Neurons OT - Toxicity window COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/11/18 06:00 MHDA- 2022/12/15 06:00 CRDT- 2022/11/17 19:33 PHST- 2022/09/25 00:00 [received] PHST- 2022/11/01 00:00 [revised] PHST- 2022/11/08 00:00 [accepted] PHST- 2022/11/18 06:00 [pubmed] PHST- 2022/12/15 06:00 [medline] PHST- 2022/11/17 19:33 [entrez] AID - S0028-3908(22)00390-2 [pii] AID - 10.1016/j.neuropharm.2022.109331 [doi] PST - ppublish SO - Neuropharmacology. 2023 Feb 1;223:109331. doi: 10.1016/j.neuropharm.2022.109331. Epub 2022 Nov 14.