PMID- 37918541 OWN - NLM STAT- MEDLINE DCOM- 20231127 LR - 20240202 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 346 DP - 2024 Jan TI - PCB126 impairs human sperm functions by affecting post-translational modifications and mitochondrial functions. PG - 140532 LID - S0045-6535(23)02802-3 [pii] LID - 10.1016/j.chemosphere.2023.140532 [doi] AB - Over the past few decades, there has been a consistent decline in semen quality across the globe, with environmental pollution being identified as the primary cause. Among the various contaminants present in the environment, persistent organic pollutants (POPs) have garnered significant attention due to their high toxicity, slow degradation, bio-accumulation, and long-range migration. PCBs, which include 210 congeners, are a crucial type of POPs that are known to have harmful effects on the environment and human health. Among the various PCB congeners, 3,3',4,4',5-pentachlorobiphenyl (PCB126) is a typical environmental endocrine-disrupting chemical that is widely distributed and has been associated with several health hazards. However, the impact and mechanism of PCB126 on human sperm function has not been fully elucidated. We aimed to investigate the effects of different concentrations of PCB126 (0.01, 0.1, 1, 10 mug/mL) on sperm motility, viability, hyperactivation, and acrosome reaction after incubation for different periods (1 and 2 h), delving deeper into the molecular mechanism of human sperm dysfunction caused by PCB126. First, we investigated the link between PCB126 treatment and the occurrence of protein modifications that are critical to sperm function regulation, such as tyrosine phosphorylation and lysine glutarylation. Second, we examined the potential impact of PCB126 on different parameters related to mitochondrial function, including reactive oxygen species, malondialdehyde levels, mitochondrial membrane potential, mitochondria respiration and adenosine triphosphate generation. Our findings indicate that exposure to environmental pollutants such as PCB126 in vitro may have a negative impact on human sperm functions by interfering with post-translational modifications and mitochondrial functions. CI - Copyright (c) 2023 Elsevier Ltd. All rights reserved. FAU - Yang, Yebin AU - Yang Y AD - College of Chemistry and Biological Engineering, Yichun University, Yichun, China. FAU - Mei, Guangquan AU - Mei G AD - Jiangxi Provincial Key Laboratory of Natural Active Pharmaceutical Constituents, Department of Chemistry and Bioengineering, Yichun University, Yichun, China; Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, Yichun University, Yichun, China. FAU - Yang, Liu AU - Yang L AD - College of Chemistry and Biological Engineering, Yichun University, Yichun, China. FAU - Luo, Tao AU - Luo T AD - Institute of Life Science and School of Life Science, Nanchang University, Nanchang, China. FAU - Wu, Runwen AU - Wu R AD - Center for Translational Medicine, Department of Medicine, Yichun University, Yichun, China. FAU - Peng, Shenglin AU - Peng S AD - Yichun People's Hospital, Jiangxi Province, Yichun, China. FAU - Peng, Zhen AU - Peng Z AD - Yichun People's Hospital, Jiangxi Province, Yichun, China. FAU - Cui, Jiajun AU - Cui J AD - Center for Translational Medicine, Department of Medicine, Yichun University, Yichun, China. FAU - Cheng, Yimin AU - Cheng Y AD - Jiangxi Provincial Key Laboratory of Natural Active Pharmaceutical Constituents, Department of Chemistry and Bioengineering, Yichun University, Yichun, China; Center for Translational Medicine, Department of Medicine, Yichun University, Yichun, China. Electronic address: 1169331029@qq.com. LA - eng PT - Journal Article DEP - 20231031 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - TSH69IA9XF (3,4,5,3',4'-pentachlorobiphenyl) RN - DFC2HB4I0K (Polychlorinated Biphenyls) RN - 0 (Environmental Pollutants) SB - IM MH - Humans MH - Male MH - *Polychlorinated Biphenyls/toxicity MH - Semen Analysis MH - Sperm Motility MH - Semen MH - *Environmental Pollutants/toxicity MH - Spermatozoa MH - Protein Processing, Post-Translational MH - Mitochondria OTO - NOTNLM OT - 3,3',4,4',5-pentachlorobiphenyl OT - Mitochondrial dysfunction OT - Post-translational modification OT - Reactive oxygen species OT - human sperm 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- 2023/11/03 00:42 MHDA- 2023/11/27 12:44 CRDT- 2023/11/02 20:15 PHST- 2023/04/22 00:00 [received] PHST- 2023/10/17 00:00 [revised] PHST- 2023/10/23 00:00 [accepted] PHST- 2023/11/27 12:44 [medline] PHST- 2023/11/03 00:42 [pubmed] PHST- 2023/11/02 20:15 [entrez] AID - S0045-6535(23)02802-3 [pii] AID - 10.1016/j.chemosphere.2023.140532 [doi] PST - ppublish SO - Chemosphere. 2024 Jan;346:140532. doi: 10.1016/j.chemosphere.2023.140532. Epub 2023 Oct 31.