PMID- 38513858 OWN - NLM STAT- MEDLINE DCOM- 20240417 LR - 20240426 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 926 DP - 2024 May 20 TI - Di (2-ethylhexyl) phthalate and polystyrene microplastics co-exposure caused oxidative stress to activate NF-kappaB/NLRP3 pathway aggravated pyroptosis and inflammation in mouse kidney. PG - 171817 LID - S0048-9697(24)01960-0 [pii] LID - 10.1016/j.scitotenv.2024.171817 [doi] AB - Polystyrene microplastic (PS-MPs) contamination has become a worldwide hotspot of concern, and its entry into organisms can cause oxidative stress resulting in multi-organ damage. The plasticizer di (2-ethylhexyl) phthalate (DEHP) is a common endocrine disruptor, these two environmental toxins often occur together, but their combined toxicity to the kidney and its mechanism of toxicity are unknown. Therefore, in this study, we established PS-MPS and/or DEHP-exposed mouse models. The results showed that alone exposure to both PS-MPs and DEHP caused inflammatory cell infiltration, cell membrane rupture, and content spillage in kidney tissues. There were also down-regulation of antioxidant enzyme levels, increased ROS content, activated of the NF-kappaB pathway, stimulated the levels of heat shock proteins (HSPs), pyroptosis, and inflammatory associated factors. Notably, the co-exposure group showed greater toxicity to kidney tissues, the cellular assay further validated these results. The introduction of the antioxidant n-acetylcysteine (NAC) and the NLRP3 inhibitor (MCC950) could mitigate the changes in the above measures. In summary, co-exposure of PS-MPs and DEHP induced oxidative stress that activated the NF-kappaB/NLRP3 pathway and aggravated kidney pyroptosis and inflammation, as well as that HSPs are also involved in this pathologic injury process. This study not only enriched the nephrotoxicity of plasticizers and microplastics, but also provided new insights into the toxicity mechanisms of multicomponent co-pollution in environmental. CI - Copyright (c) 2024 Elsevier B.V. All rights reserved. FAU - Li, Shanshan AU - Li S AD - College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China. FAU - Gu, Xuedie AU - Gu X AD - College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China. FAU - Zhang, Muyue AU - Zhang M AD - College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China. FAU - Jiang, Qihang AU - Jiang Q AD - College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China. FAU - Xu, Tong AU - Xu T AD - College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China.. Electronic address: tongxu@neau.edu.cn. LA - eng PT - Journal Article DEP - 20240319 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 RN - 0 (Antioxidants) RN - C42K0PH13C (Diethylhexyl Phthalate) RN - 0 (Microplastics) RN - 0 (NF-kappa B) RN - 0 (NLR Family, Pyrin Domain-Containing 3 Protein) RN - 6O7F7IX66E (phthalic acid) RN - 0 (Phthalic Acids) RN - 0 (Plasticizers) RN - 0 (Plastics) RN - 0 (Polystyrenes) SB - IM MH - Animals MH - Mice MH - Antioxidants/metabolism MH - *Diethylhexyl Phthalate/toxicity/metabolism MH - Inflammation/chemically induced MH - Kidney/metabolism MH - *Microplastics/metabolism/toxicity MH - NF-kappa B/metabolism MH - NLR Family, Pyrin Domain-Containing 3 Protein/metabolism MH - *Oxidative Stress MH - *Phthalic Acids MH - Plasticizers/toxicity/metabolism MH - Plastics/metabolism/toxicity MH - Polystyrenes/toxicity/metabolism MH - *Pyroptosis OTO - NOTNLM OT - Di (2-ethylhexyl) phthalate OT - Inflammation OT - Kidney toxicity OT - Polystyrene microplastics OT - Pyroptosis OT - ROS 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- 2024/03/22 00:44 MHDA- 2024/04/17 06:42 CRDT- 2024/03/21 20:27 PHST- 2024/01/08 00:00 [received] PHST- 2024/03/15 00:00 [revised] PHST- 2024/03/17 00:00 [accepted] PHST- 2024/04/17 06:42 [medline] PHST- 2024/03/22 00:44 [pubmed] PHST- 2024/03/21 20:27 [entrez] AID - S0048-9697(24)01960-0 [pii] AID - 10.1016/j.scitotenv.2024.171817 [doi] PST - ppublish SO - Sci Total Environ. 2024 May 20;926:171817. doi: 10.1016/j.scitotenv.2024.171817. Epub 2024 Mar 19.