PMID- 35525219 OWN - NLM STAT- MEDLINE DCOM- 20220623 LR - 20220624 IS - 1873-3336 (Electronic) IS - 0304-3894 (Linking) VI - 436 DP - 2022 Aug 15 TI - The role of ferroptosis mediated by NRF2/ERK-regulated ferritinophagy in CdTe QDs-induced inflammation in macrophage. PG - 129043 LID - S0304-3894(22)00832-9 [pii] LID - 10.1016/j.jhazmat.2022.129043 [doi] AB - Cadmium telluride quantum dots (CdTe QDs) exist in the environment due to the abandonment of products. There is a potential risk to organisms and toxic mechanism is worth exploring. In this study, 12.5 mumol/Kg body weight CdTe QDs triggered systemic and local inflammatory response in mice and activated macrophages, then the mechanism of activating macrophages to overexpress IL-1beta and IL-6 was explored. RAW264.7 macrophages were used, and after macrophages exposing to 1 muM CdTe QDs for 24 h, oxidative stress occurred. Further investigation found that CdTe QDs triggered ferroptosis in RAW264.7 cells. And deferoxamine mesylate alleviated the excessive lipid hydroperoxide caused by QDs. Mechanistically, CdTe QDs-provoked decrease of nuclear factor erythroid 2-related factor 2 (NRF2) elicited phosphorylation of extracellular regulated protein kinases1/2 (ERK1/2) and then activated ferritinophagy, which made ferritin heavy chain 1 (FTH1) degraded in lysosome and proteasome to release free iron ions to initiate ferroptosis in macrophages. This paper updates the mechanism of macrophage activation by CdTe QDs with regard to ferritinophagy, and more importantly, identifies the key role of NRF2 and ERK1/2. Our research extends the role of ferroptosis in inflammatory responses triggered by nanoparticles (NPs) in macrophages and provides insightful reference for toxicity assessment of NPs. CI - Copyright (c) 2022 Elsevier B.V. All rights reserved. FAU - Liu, Na AU - Liu N AD - Key Laboratory of Environmental Medicine & Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China. FAU - Liang, Ying AU - Liang Y AD - Key Laboratory of Environmental Medicine & Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China; Testing Center for Medical Device, Yancheng Institute of Measurement and Testing, Yancheng 224007, PR China. FAU - Wei, Tingting AU - Wei T AD - Key Laboratory of Environmental Medicine & Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China. FAU - Zou, Lingyue AU - Zou L AD - Key Laboratory of Environmental Medicine & Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China. FAU - Huang, Xiaoquan AU - Huang X AD - Key Laboratory of Environmental Medicine & Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China. FAU - Kong, Lu AU - Kong L AD - Key Laboratory of Environmental Medicine & Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China. FAU - Tang, Meng AU - Tang M AD - Key Laboratory of Environmental Medicine & Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China. Electronic address: tm@seu.edu.cn. FAU - Zhang, Ting AU - Zhang T AD - Key Laboratory of Environmental Medicine & Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China. Electronic address: zhangting@seu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220504 PL - Netherlands TA - J Hazard Mater JT - Journal of hazardous materials JID - 9422688 RN - 0 (Cadmium Compounds) RN - 0 (NF-E2-Related Factor 2) RN - NQA0O090ZJ (Tellurium) RN - STG188WO13 (cadmium telluride) SB - IM MH - Animals MH - *Cadmium Compounds/toxicity MH - *Ferroptosis MH - Inflammation/chemically induced MH - Macrophages/metabolism MH - Mice MH - NF-E2-Related Factor 2/genetics/metabolism MH - *Quantum Dots/toxicity MH - Tellurium/toxicity OTO - NOTNLM OT - CdTe QDs OT - Ferritinophagy OT - Ferroptosis OT - Inflammation OT - Toxicity EDAT- 2022/05/08 06:00 MHDA- 2022/06/24 06:00 CRDT- 2022/05/07 18:26 PHST- 2022/02/16 00:00 [received] PHST- 2022/04/11 00:00 [revised] PHST- 2022/04/27 00:00 [accepted] PHST- 2022/05/08 06:00 [pubmed] PHST- 2022/06/24 06:00 [medline] PHST- 2022/05/07 18:26 [entrez] AID - S0304-3894(22)00832-9 [pii] AID - 10.1016/j.jhazmat.2022.129043 [doi] PST - ppublish SO - J Hazard Mater. 2022 Aug 15;436:129043. doi: 10.1016/j.jhazmat.2022.129043. Epub 2022 May 4.