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Zhang X, Shi J, Wang R, Ma J, Li X, Cai W, Li T, Zou W. Acute exposure to tris(2,4-di-tert-butylphenyl)phosphate elicits cardiotoxicity in zebrafish (Danio rerio) larvae via inducing ferroptosis. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134389. [PMID: 38669931 DOI: 10.1016/j.jhazmat.2024.134389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/19/2024] [Accepted: 04/21/2024] [Indexed: 04/28/2024]
Abstract
Tris(2,4-di-tert-butylphenyl)phosphate (AO168 =O), a novel organophosphate ester, is prevalent and abundant in the environment, posing great exposure risks to ecological and public health. Nevertheless, the toxicological effects of AO168 =O remain entirely unknown to date. The results in this study indicated that acute exposure to AO168 =O at 10 and 100 μg/L for 5 days obviously impaired cardiac morphology and function of zebrafish larvae, as proofed by decreased heartbeat, stroke volume, and cardiac output and the occurrence of pericardial edema and ventricular hypertrophy. Transcriptomics, polymerase chain reaction, and molecular docking revealed that the strong interaction of AO168 =O and transferrin receptor 1 activated the transportation of ferric iron into intracellular environment. The release of free ferrous ion to cytoplasmic iron pool also contributed to the iron overload in heart region, thus inducing ferroptosis in larvae via generation of excessive reactive oxygen species, glutathione peroxidase 4 inhibition, glutathione depletion and lipid peroxidation. Ferroptosis inhibitor (Fer-1) co-exposure effectively relieved the cardiac dysfunctions of zebrafish, verifying the dominant role of ferroptosis in the cardiotoxicity caused by AO168 =O. This research firstly reported the adverse impact and associated mechanisms of AO168 =O in cardiomyogenesis of vertebrates, underlining the urgency of concerning the health risks of AO168 =O.
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Affiliation(s)
- Xingli Zhang
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory of Environmental Pollution Control, Henan Normal University, Xinxiang 453007, China
| | - Jing Shi
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory of Environmental Pollution Control, Henan Normal University, Xinxiang 453007, China
| | - Ruonan Wang
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory of Environmental Pollution Control, Henan Normal University, Xinxiang 453007, China
| | - Junguo Ma
- Henan International Joint Laboratory of Aquatic Toxicology and Health Protection, Henan Normal University, Xinxiang 453007, China
| | - Xiaokang Li
- School of Environmental and Material Engineering, Yantai University, Yantai, China
| | - Wenwen Cai
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory of Environmental Pollution Control, Henan Normal University, Xinxiang 453007, China
| | - Tengfei Li
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory of Environmental Pollution Control, Henan Normal University, Xinxiang 453007, China
| | - Wei Zou
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory of Environmental Pollution Control, Henan Normal University, Xinxiang 453007, China.
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Wang H, Zhao W, Wang D, Chen J. ANO6 (TMEM16F) inhibits gastrointestinal stromal tumor growth and induces ferroptosis. Open Med (Wars) 2024; 19:20240941. [PMID: 38756246 PMCID: PMC11097043 DOI: 10.1515/med-2024-0941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 02/21/2024] [Accepted: 03/05/2024] [Indexed: 05/18/2024] Open
Abstract
Herein, we elucidate the potential role of ANO6 (TMEM16F) in gastrointestinal stromal tumors (GISTs). ANO6 expression in GIST and adjacent normal tissues was determined using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blotting. Cell proliferation, apoptosis, and pyroptosis were examined utilizing 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, terminal deoxynucleotidyl transferase dUTP Nick-End Labeling staining, and flow cytometry. In addition, the total iron and Fe2+ levels were assessed. IL-18 and IL-1β levels were also evaluated. Lipid reactive oxygen species (ROS), cystine (Cys), glutathione (GSH), and glutathione peroxidase 4 (GPX4) levels were evaluated using appropriate kits. Ferroptotic markers, including Ptgs2, Chac1, SLC7A11, and SLC3A2, were analyzed by RT-qPCR, western blotting, and immunohistochemistry. ANO6 expression decreased in GIST tissues. ANO6-plasmid inhibits proliferation, induces apoptosis, and promotes pyroptosis in GIST-T1 and GIST-T1 IR cells. The ANO6-plasmid induced ferroptosis, as confirmed by enhanced lipid ROS levels, increased intracellular concentrations of total iron and Fe2+, promoted Ptgs2 and Chac1 expression, reduced Cys, GSH, and GPX4 levels, and downregulated SLC7A11 and SLC3A2 expression after in vitro and in vivo treatment with ANO6-plasmid. Moreover, the ANO6-plasmid inhibited GIST growth in vivo. Therefore, ANO6 may be a promising therapeutic target for blocking the development of GIST via the induction of apoptosis, pyroptosis, and ferroptosis.
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Affiliation(s)
- Hao Wang
- School of Public Health, Nanjing Medical University, Nanjing211166, China
- Department of Gastrointestinal Surgery, The Yangzhou School of Clinical Medicine of Nanjing Medical University, Yangzhou225001, China
| | - Wei Zhao
- Department of Gastrointestinal Surgery, The Yangzhou School of Clinical Medicine of Nanjing Medical University, Yangzhou225001, China
| | - Daorong Wang
- Department of Gastrointestinal Surgery, The Yangzhou School of Clinical Medicine of Nanjing Medical University, Yangzhou225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, Yangzhou225001, China
| | - Jin Chen
- The Key Laboratory of Modern Toxicology, Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Jiangning District, Nanjing211166, China
- Jiangsu Province Engineering Research Center of Antibody Drug, Key Laboratory of Antibody Technique of National Health Commission, Nanjing Medical University, Nanjing211166, China
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Liu C, Wang G, Han W, Tian Q, Li M. Ferroptosis: a potential therapeutic target for stroke. Neural Regen Res 2024; 19:988-997. [PMID: 37862200 PMCID: PMC10749612 DOI: 10.4103/1673-5374.385284] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/05/2023] [Accepted: 08/03/2023] [Indexed: 10/22/2023] Open
Abstract
Ferroptosis is a form of regulated cell death characterized by massive iron accumulation and iron-dependent lipid peroxidation, differing from apoptosis, necroptosis, and autophagy in several aspects. Ferroptosis is regarded as a critical mechanism of a series of pathophysiological reactions after stroke because of iron overload caused by hemoglobin degradation and iron metabolism imbalance. In this review, we discuss ferroptosis-related metabolisms, important molecules directly or indirectly targeting iron metabolism and lipid peroxidation, and transcriptional regulation of ferroptosis, revealing the role of ferroptosis in the progression of stroke. We present updated progress in the intervention of ferroptosis as therapeutic strategies for stroke in vivo and in vitro and summarize the effects of ferroptosis inhibitors on stroke. Our review facilitates further understanding of ferroptosis pathogenesis in stroke, proposes new targets for the treatment of stroke, and suggests that more efforts should be made to investigate the mechanism of ferroptosis in stroke.
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Affiliation(s)
- Chengli Liu
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Guijun Wang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Wenrui Han
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Qi Tian
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Mingchang Li
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
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Gong G, Ganesan K, Liu Y, Huang Y, Luo Y, Wang X, Zhang Z, Zheng Y. Danggui Buxue Tang improves therapeutic efficacy of doxorubicin in triple negative breast cancer via ferroptosis. JOURNAL OF ETHNOPHARMACOLOGY 2024; 323:117655. [PMID: 38158099 DOI: 10.1016/j.jep.2023.117655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/14/2023] [Accepted: 12/22/2023] [Indexed: 01/03/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Danggui Buxue Tang (DBT) has been used for over 800 years to enhance Qi and nourish Blood, and it is particularly beneficial for cancer patients. Recent research has shown that combining DBT with chemotherapy agents leads to superior anti-cancer effects, thereby enhancing therapeutic efficacy. AIM OF THE STUDY The aim of this study was to evaluate the effectiveness of a combination therapy involving doxorubicin (DOX) and Danggui Buxue Tang (DBT) in the treatment of triple-negative breast cancer (TNBC) and to elucidate the underlying mechanisms of action. MATERIALS AND METHODS In vitro experiments were performed using MDA-MB-231 and 4T1 cells, while in vivo experiments were carried out using MDA-MB-231 xenograft mice. The therapeutic effects of the combination therapy were evaluated using various techniques, including MTT assay, colony formation assay, flow cytometry, transwell assay, immunofluorescence, transmission electron microscopy (TEM), histological analysis, western blotting, and bioluminescence assay. RESULTS DBT was found to enhance DOX's anti-TNBC activity in vitro by promoting ferroptosis, as evidenced by the observed mitochondrial morphological changes using TEM. The combination therapy was also found to reduce the expression of Nrf2, HO-1, and GPX4, which are all targets for ferroptosis induction, while simultaneously increasing ROS production. Additionally, the combination therapy reduced nuclear accumulation and constitutive activation of Nrf2, which is a significant cause of chemotherapy resistance and promotes cancer growth. In vivo experiments using an MDA-MB-231 xenograft animal model revealed that the combination therapy significantly reduced tumor cell proliferation and accelerated TNBC deaths by modulating the Nrf2/HO-1/GPX4 axis, with no evidence of tissue abnormalities. Moreover, the combination therapy exhibited a liver protective effect, and administration of Fer-1 was able to reduce the ROS formation produced by the DBT + DOX combination therapy. CONCLUSION This study provides evidence that the combination therapy of DOX and DBT has the potential to treat TNBC by promoting ferroptosis through the Nrf2/HO-1/GPX4 axis.
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Affiliation(s)
- Guowei Gong
- Department of Bioengineering, Zunyi Medical University, Zhuhai Campus, Zhuhai, Guangdong, 519041, China; Guangdong Key Laboratory for Functional Substances in Medicinal Edible Resources and Healthcare Products, School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, China.
| | - Kumar Ganesan
- School of Chinese Medicine, The Hong Kong University, Hong Kong SAR, 999077, China
| | - Yaqun Liu
- Guangdong Key Laboratory for Functional Substances in Medicinal Edible Resources and Healthcare Products, School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, China
| | - Yongping Huang
- Guangdong Key Laboratory for Functional Substances in Medicinal Edible Resources and Healthcare Products, School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, China
| | - Yuting Luo
- Guangdong Key Laboratory for Functional Substances in Medicinal Edible Resources and Healthcare Products, School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, China
| | - Xuexu Wang
- Guangdong Key Laboratory for Functional Substances in Medicinal Edible Resources and Healthcare Products, School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, China
| | - Zhenxia Zhang
- Guangdong Key Laboratory for Functional Substances in Medicinal Edible Resources and Healthcare Products, School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, China
| | - Yuzhong Zheng
- Guangdong Key Laboratory for Functional Substances in Medicinal Edible Resources and Healthcare Products, School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041, China; Guangdong East Drug and Food & Health Branch, Chaozhou, Guangdong, 521041, China.
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Chen YL, Xiong LA, Ma LF, Fang L, Zhan ZJ. Natural product-derived ferroptosis mediators. PHYTOCHEMISTRY 2024; 219:114002. [PMID: 38286199 DOI: 10.1016/j.phytochem.2024.114002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/22/2024] [Accepted: 01/22/2024] [Indexed: 01/31/2024]
Abstract
It has been 11 years since ferroptosis, a new mode of programmed cell death, was first proposed. Natural products are an important source of drug discovery. In the past five years, natural product-derived ferroptosis regulators have been discovered in an endless stream. Herein, 178 natural products discovered so far to trigger or resist ferroptosis are classified into 6 structural classes based on skeleton type, and the mechanisms of action that have been reported are elaborated upon. If pharmacodynamic data are sufficient, the structure and bioactivity relationship is also presented. This review will provide medicinal chemists with some effective ferroptosis regulators, which will promote the research of natural product-based treatment of ferroptosis-related diseases in the future.
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Affiliation(s)
- Yi-Li Chen
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, PR China
| | - Lin-An Xiong
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, PR China
| | - Lie-Feng Ma
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, PR China
| | - Luo Fang
- Department of Pharmacy, Zhejiang Cancer Hospital, PR China.
| | - Zha-Jun Zhan
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, PR China.
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Wu K, Ouyang M, Luo Y, Xu M, Ren G, An J, Zheng K, Shang Y, Zeng X, Yu Z. Characteristics and potential cytotoxicity of halogenated organic compounds in shale gas wastewater-impacted surface waters in Chongqing area, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169226. [PMID: 38101627 DOI: 10.1016/j.scitotenv.2023.169226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023]
Abstract
Recent screening surveys have shown the presence of unknown source halogenated organic compounds (HOCs) in shale gas wastewater. However, their occurrence, profile, transport in surrounding surface water and environmental risk potentials remain unclear. Here, a method for the extraction and quantitative determination of 13 HOCs in water by solid phase extraction combined with gas chromatography-mass spectrometry (GC-MS) was established. All of the targeted HOCs were detected and peaked at the outfall, while these contaminants were generally not detected in samples upstream of the outfall, suggesting that these contaminants originated from the discharge of shale gas wastewater; this was further supported by the fact that these pollutants were generally detected in downstream samples, with a tendency for pollutant concentrations to decrease progressively with increasing distance from the outfall. However,different HOCs had different transport potential in water. In addition, the toxicological effects of typical HOCs were evaluated using HepG2 as a model cell. The results indicated that diiodoalkanes suppressed HepG2 cell proliferation and induced ROS generation in a concentration-dependent manner. Mechanistic studies showed that diiodoalkanes induced apoptosis in HepG2 cells via the ROS-mediated mitochondrial pathway, decreasing mitochondrial membrane potential and increasing intercellular ATP and Ca2+ levels. On the other hand, RT-qPCR and Western blot assays revealed that the SLC7A11/GPX4 signaling pathway and HO-1 regulation of ferritin autophagy-dependent degradation (HO-1/FTL) pathway were involved in the ferroptosis pathway induced by diiodoalkane in HepG2 cells. Our study not only elucidates the contamination profiles and transport of HOCs in surface water of typical shale gas extraction areas in China, but also reveals the toxicity mechanism of typical diiodoalkane.
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Affiliation(s)
- Kangming Wu
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Minghui Ouyang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Yihao Luo
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Maoyuan Xu
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Guofa Ren
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resource Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China.
| | - Jing An
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Kewen Zheng
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Yu Shang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Xiangying Zeng
- State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resource Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China; CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China
| | - Zhiqiang Yu
- State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resource Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China; CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China.
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Chen F, Lu J, Zheng B, Yi N, Xie C, Chen F, Wei D, Jiang H, Qin S. Artesunate Inhibits the Growth of Insulinoma Cells via SLC7A11/ GPX4-mediated Ferroptosis. Curr Pharm Des 2024; 30:230-239. [PMID: 38243946 DOI: 10.2174/0113816128289372240105041038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 01/22/2024]
Abstract
BACKGROUND Artesunate (ART) has been recognized to induce ferroptosis in various tumor phenotypes, including neuroendocrine tumors. We aimed to investigate the effects of ART on insulinoma and the underlying mechanisms by focusing on the process of ferroptosis. METHODS The CCK8 and colony formation assays were conducted to assess the effectiveness of ART. Lipid peroxidation, glutathione, and intracellular iron content were determined to validate the process of ferroptosis, while ferrostatin-1 (Fer-1) was employed as the inhibitor of ferroptosis. Subcutaneous tumor models were established and treated with ART. The ferroptosis-associated proteins were determined by western blot and immunohistochemistry assays. Pathological structures of the liver were examined by hematoxylin-eosin staining. RESULTS ART suppressed the growth of insulinoma both in vitro and in vivo. Insulinoma cells treated by ART revealed signs of ferroptosis, including increased lipid peroxidation, diminished glutathione levels, and ascending intracellular iron. Notably, ART-treated insulinoma cells exhibited a decline in the expressions of catalytic component solute carrier family 7 member 11 (SLC7A11) and glutathione peroxidase 4 (GPX4). These alterations were negated by Fer-1. Moreover, no hepatotoxicity was observed upon the therapeutic dose of ART. CONCLUSION Artesunate might regulate ferroptosis of insulinoma cells through the SLC7A11/GPX4 pathway.
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Affiliation(s)
- Fengping Chen
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Jiexia Lu
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Biaolin Zheng
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
- Department of Gastroenterology, The Third People's Hospital of Shenzhen City, Shenzhen, Guangdong, China
| | - Nan Yi
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
- Department of Gastroenterology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning City, Guangxi, China
| | - Chunxiao Xie
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Feiran Chen
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Dafu Wei
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Haixing Jiang
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Shanyu Qin
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
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An S, Shi J, Huang J, Li Z, Feng M, Cao G. HIF-1α-induced upregulation of m6A reader IGF2BP1 facilitates peripheral nerve injury recovery by enhancing SLC7A11 mRNA stabilization. In Vitro Cell Dev Biol Anim 2023; 59:596-605. [PMID: 37783915 DOI: 10.1007/s11626-023-00812-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 09/17/2023] [Indexed: 10/04/2023]
Abstract
The recovery of peripheral nerve injury (PNI) is not ideal in clinic. Our previous study revealed that hypoxia treatment promoted PNI repair by inhibiting ferroptosis. The aim of this study was to investigate the underlying molecular mechanism of HIF-1α in hypoxia-PNI recovery. M6A dot blot was used to determine the total level of m6A modification. Besides, HIF-1α small interfering RNA (siRNA) or IGF2BP1 overexpression vector was transfected into dorsal root ganglion (DRG) neurons to alter the expression of HIF-1α and IGF2BP1. Subsequently, MeRIP-PCR analysis was applied to validate the m6A methylation level of SLC7A11. We demonstrated the hypoxia stimulated HIF-1α-dependent expression of IGF2BP1 and promoted the overall m6A methylation levels of DRG neurons. Overexpression of HIF-1α increased the expressions of neurotrophic factors including nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), and glial-derived neurotrophic factor (GDNF), which could be effectively reversed by siRNA knockdown of IGF2BP1. Moreover, upregulation of HIF-1α contributed to the m6A methylation level and mRNA stabilization of SLC7A11. This study revealed that the HIF-1α/IGF2BP1/SLC7A11 regulatory axis facilitated the recovery of injured DRG neurons. Our findings suggest a novel insight for the m6A methylation modification in PNI recovery.
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Affiliation(s)
- Shuai An
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Jingfei Shi
- Cerebrovascular and Neuroscience Research Institute, Beijing Institute of Geriatrics, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jiang Huang
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Zheng Li
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Mingli Feng
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.
| | - Guanglei Cao
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.
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Han C, Sheng J, Pei H, Sheng Y, Wang J, Zhou X, Li W, Cao C, Yang Y. Environmental toxin chlorpyrifos induces liver injury by activating P53-mediated ferroptosis via GSDMD-mtROS. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 257:114938. [PMID: 37099958 DOI: 10.1016/j.ecoenv.2023.114938] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 04/16/2023] [Accepted: 04/18/2023] [Indexed: 05/08/2023]
Abstract
AIM We investigate the mechanism whereby chlorpyrifos (CHI), an environmental toxin, causes liver injury by inducing ferroptosis in hepatocytes. METHODS The toxic dose (LD50 = 50 μM) of CHI for inducing AML12 injury in normal mouse hepatocytes was determined, and the ferroptosis-related indices were measured, including the levels of SOD, MDA and GSH-Px, as well as the cellular content of iron ions. JC-1 and DCFH-DA assays were employed to detect the mtROS levels, the levels of mitochondrial proteins (GSDMD, NT-GSDMD), as well as the cellular levels of ferroptosis-related proteins (P53, GPX4, MDM2, SLC7A11). We knocked out the GSDMD and P53 in AML12 and observed the CHI-induced ferroptosis of ALM12 after applying YGC063, an ROS inhibitor. In animal experiments, we explored the effect of CHI on liver injury by using conditional GSDMD-knockout mice (C57BL/6 N-GSDMDem1(flox)Cya) and ferroptosis inhibitor Fer-1. Small molecule-protein docking and Pull-down assay were employed to verify the association between CHI and GSDMD. RESULTS We found that CHI could induce ferroptosis of AML12. CHI promoted the cleavage of GSDMD, leading to upregulation of mitochondrial NT-GSDMD expression, as well as ROS levels. P53 activation promoted the ferroptosis. Knock out of GSDMD and P53 could inhibit the CHI-induced ferroptosis, and YGC063 could also inhibit ferroptosis. In mice experiments, GSDMD knockout or Fer-1 intervention could significantly inhibit the CHI-induced liver injury. CHI promoted the cleavage of GSDMD by binding to its SER234 site. CONCLUSION CHI can bind to GSDMD to promote its cleavage, while NT-GSDMD can open mitochondrial membrane to promote the mtROS release. Cytoplasmic upregulation of ROS levels can facilitate the P53-mediated ferroptosis. GSDMD-mtROS is the primary mechanism whereby CHI induces ferroptosis in hepatocytes.
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Affiliation(s)
- Chenyang Han
- The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Jian Sheng
- The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Hongyan Pei
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Yongjia Sheng
- The Second Affiliated Hospital of Jiaxing University, China
| | - Jin Wang
- The Second Affiliated Hospital of Jiaxing University, China
| | - Xiaohong Zhou
- The Second Affiliated Hospital of Jiaxing University, China
| | - Wenyan Li
- The Second Affiliated Hospital of Jiaxing University, China
| | - Chenxi Cao
- The Second Affiliated Hospital of Jiaxing University, China.
| | - Yi Yang
- The Second Affiliated Hospital of Jiaxing University, China.
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