PMID- 36796495 OWN - NLM STAT- MEDLINE DCOM- 20230307 LR - 20230320 IS - 1096-0333 (Electronic) IS - 0041-008X (Linking) VI - 463 DP - 2023 Mar 15 TI - Stage-, dose-, and course-dependent inhibition of prenatal amoxicillin exposure on fetal articular cartilage development in fetal mice. PG - 116429 LID - S0041-008X(23)00067-4 [pii] LID - 10.1016/j.taap.2023.116429 [doi] AB - Amoxicillin is widely used in the treatment of infectious diseases during pregnancy; however, the effects of prenatal amoxicillin exposure (PAE) on fetal development remain largely unknown. Therefore, this study aimed to investigate the toxic effects of PAE on fetal cartilage at different stage-, dose-, and course. Pregnant Kunming mice were orally administered 300 mg/kg.d (converted from clinical dose) amoxicillin on gestational days (GD) 10-12 or 16-18 (mid or late pregnancy stage), 150 or 300 mg/kg.d amoxicillin on GD16-18 (different doses), 300 mg/kg.d amoxicillin on GD16 (single course) or 16-18 (multiple courses), respectively. The fetal articular cartilage of the knee was collected on GD18. The number of chondrocytes and the expression of matrix synthesis/degradation, proliferation/apoptosis-related markers, and the TGF-beta signaling pathway were detected. The results showed that the number of chondrocytes and the expression of matrix synthesis markers were reduced in male fetal mice treated with PAE (GD16-18, 300 mg/kg.d, single course and multiple courses), whereas the above indices in female mice showed no changes. The inhibited expression of PCNA, increased expression of Caspase-3, and down-regulated expression of the TGF-beta signaling pathway were found in male PAE fetal mice. Accordingly, PAE exerted its "toxic effect window" on the knee cartilage development in male fetal mice, which manifested as reduced chondrocyte number and inhibited expression of matrix synthesis at a clinical dose of multiple courses in the late pregnancy stage. This study provides a theoretical and experimental basis for elucidating the risk of chondrodevelopmental toxicity associated with amoxicillin during pregnancy. CI - Copyright (c) 2023 Elsevier Inc. All rights reserved. FAU - Gu, Hanwen AU - Gu H AD - Division of Joint Surgery and Sports Medicine, Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China. FAU - Li, Bin AU - Li B AD - Division of Joint Surgery and Sports Medicine, Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China. FAU - Liu, Liang AU - Liu L AD - Division of Joint Surgery and Sports Medicine, Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China. FAU - Li, Xufeng AU - Li X AD - Division of Joint Surgery and Sports Medicine, Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China. FAU - Wang, Hui AU - Wang H AD - Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China. Electronic address: wanghui19@whu.edu.cn. FAU - Chen, Liaobin AU - Chen L AD - Division of Joint Surgery and Sports Medicine, Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China. Electronic address: lbchen@whu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230214 PL - United States TA - Toxicol Appl Pharmacol JT - Toxicology and applied pharmacology JID - 0416575 RN - 0 (Transforming Growth Factor beta) RN - Kunming mice SB - IM MH - Mice MH - Animals MH - Pregnancy MH - Male MH - Female MH - *Cartilage, Articular MH - Fetus/metabolism MH - Fetal Development MH - Transforming Growth Factor beta/metabolism MH - Chondrocytes OTO - NOTNLM OT - Amoxicillin OT - Articular cartilage development OT - Gender differences OT - Prenatal exposure OT - Synthesis of extracellular matrix COIS- Declaration of Competing Interest All the authors state that they have no conflicts of interest. EDAT- 2023/02/17 06:00 MHDA- 2023/03/08 06:00 CRDT- 2023/02/16 19:24 PHST- 2022/10/13 00:00 [received] PHST- 2023/01/20 00:00 [revised] PHST- 2023/02/12 00:00 [accepted] PHST- 2023/02/17 06:00 [pubmed] PHST- 2023/03/08 06:00 [medline] PHST- 2023/02/16 19:24 [entrez] AID - S0041-008X(23)00067-4 [pii] AID - 10.1016/j.taap.2023.116429 [doi] PST - ppublish SO - Toxicol Appl Pharmacol. 2023 Mar 15;463:116429. doi: 10.1016/j.taap.2023.116429. Epub 2023 Feb 14.