PMID- 35476938 OWN - NLM STAT- MEDLINE DCOM- 20220524 LR - 20220524 IS - 1873-6351 (Electronic) IS - 0278-6915 (Linking) VI - 164 DP - 2022 Jun TI - Endogenous hydrogen sulfide counteracts polystyrene nanoplastics-induced mitochondrial apoptosis and excessive autophagy via regulating Nrf2 and PGC-1alpha signaling pathway in mouse spermatocyte-derived GC-2spd(ts) cells. PG - 113071 LID - S0278-6915(22)00269-1 [pii] LID - 10.1016/j.fct.2022.113071 [doi] AB - Nanoplastics (NaPs) has reported to accumulate in the testes and cause degeneration in the seminiferous tubules. Additionally, exogenous hydrogen sulfide (H(2)S) is proposed to enhance tolerance to oxidative stress. The current work aimed to investigate the mechanisms of NaPs-induced reproductive toxicity in vitro and probable reproductive protection by endogenous H(2)S. We firstly found that 80 nm fluorescent NaPs could enter into GC-2spd(ts) cells by fluorescent inverted microscope. In addition, we demonstrated that NaPs-induced could induce ROS-dependent mitochondrial apoptosis and autophagy in vitro. Our results showed that the H(2)S donor NaHS ameliorated NaPs-triggered mitochondrial apoptosis and autophagy in GC-2spd(ts) cells. Moreover, NaPs treatment did not change the interaction between nuclear factor erythroid-derived 2-related factor (Nrf2) and Kelch-like ECH associated protein 1 (Keap1), while inhibiting nuclear accumulation of Nrf2 protein was observed. Meanwhile, NaHS weakened this interaction, subsequently improving antioxidant ability via increasing the protein levels of heme oxygenase-1 (HO-1) and NAD(P)H dehydrogenase quinone 1 (NQO1). Further, invitro experiments showed that NaPs-induced reproductive toxicity associated with reducing PGC-1alpha. Meanwhile, NaPs-induced higher expression PGC-1alpha was further enhanced by NaHS co-treatment. Together, this study highlight that exogenous H(2)S should be an essential therapeutic approach to alleviate NaPs-induced reproductive toxicity via regulating Nrf2/PGC-1alpha signal. CI - Copyright (c) 2022 Elsevier Ltd. All rights reserved. FAU - Li, Siwen AU - Li S AD - Xiangya School of Public Health, Central South University, Changsha, 410078, PR China. Electronic address: lisiwen0529@163.com. FAU - Ma, Yu AU - Ma Y AD - Xiangya School of Public Health, Central South University, Changsha, 410078, PR China. FAU - Ye, Shuzi AU - Ye S AD - Xiangya School of Public Health, Central South University, Changsha, 410078, PR China. FAU - Su, Ying AU - Su Y AD - Xiangya School of Public Health, Central South University, Changsha, 410078, PR China. FAU - Hu, Die AU - Hu D AD - Xiangya School of Public Health, Central South University, Changsha, 410078, PR China. FAU - Xiao, Fang AU - Xiao F AD - Xiangya School of Public Health, Central South University, Changsha, 410078, PR China. Electronic address: fangxiao@csu.edu.cn. LA - eng PT - Journal Article DEP - 20220426 PL - England TA - Food Chem Toxicol JT - Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association JID - 8207483 RN - 0 (Kelch-Like ECH-Associated Protein 1) RN - 0 (Microplastics) RN - 0 (NF-E2-Related Factor 2) RN - 0 (Polystyrenes) RN - YY9FVM7NSN (Hydrogen Sulfide) SB - IM MH - Animals MH - Apoptosis MH - Autophagy MH - *Hydrogen Sulfide/metabolism/pharmacology MH - Kelch-Like ECH-Associated Protein 1/metabolism MH - Male MH - Mice MH - Microplastics MH - *NF-E2-Related Factor 2/genetics/metabolism MH - Oxidative Stress MH - Polystyrenes MH - Signal Transduction MH - Spermatocytes OTO - NOTNLM OT - Mitochondrial apoptosis OT - Nanoplastics OT - Nuclear factor erythroid-derived 2-related factor (Nrf2) OT - Pyruvate kinase M2 OT - Reproductive toxicity EDAT- 2022/04/28 06:00 MHDA- 2022/05/25 06:00 CRDT- 2022/04/27 20:02 PHST- 2022/03/29 00:00 [received] PHST- 2022/04/17 00:00 [revised] PHST- 2022/04/20 00:00 [accepted] PHST- 2022/04/28 06:00 [pubmed] PHST- 2022/05/25 06:00 [medline] PHST- 2022/04/27 20:02 [entrez] AID - S0278-6915(22)00269-1 [pii] AID - 10.1016/j.fct.2022.113071 [doi] PST - ppublish SO - Food Chem Toxicol. 2022 Jun;164:113071. doi: 10.1016/j.fct.2022.113071. Epub 2022 Apr 26.