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Lv S, Li Y, Li X, Zhu L, Zhu Y, Guo C, Li Y. Silica nanoparticles triggered epithelial ferroptosis via miR-21-5p/GCLM signaling to contribute to fibrogenesis in the lungs. Chem Biol Interact 2024; 399:111121. [PMID: 38944326 DOI: 10.1016/j.cbi.2024.111121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Revised: 06/24/2024] [Accepted: 06/27/2024] [Indexed: 07/01/2024]
Abstract
The toxicity of silica nanoparticles (SiNPs) to lung is known. We previously demonstrated that exposure to SiNPs promoted pulmonary impairments, but the precise pathogenesis remains elucidated. Ferroptosis has now been identified as a unique form of oxidative cell death, but whether it participated in SiNPs-induced lung injury remains unclear. In this work, we established a rat model with sub-chronic inhalation exposure of SiNPs via intratracheal instillation, and conducted histopathological examination, iron detection, and ferroptosis-related lipid peroxidation and protein assays. Moreover, we evaluated the effect of SiNPs on epithelial ferroptosis, possible mechanisms using in vitro-cultured human bronchial epithelial cells (16HBE), and also assessed the ensuing impact on fibroblast activation for fibrogenesis. Consequently, fibrotic lesions occurred in the rat lungs, concomitantly by enhanced lipid peroxidation, iron overload, and ferroptosis. Consistently, the in vitro data showed SiNPs triggered oxidative stress and caused the accumulation of lipid peroxides, resulting in ferroptosis. Importantly, the mechanistic investigation revealed miR-21-5p as a key player in the epithelial ferroptotic process induced by SiNPs via targeting GCLM for GSH depletion. Of note, ferrostatin-1 could greatly suppress ferroptosis and alleviate epithelial injury and ensuing fibroblast activation by SiNPs. In conclusion, our findings first revealed SiNPs triggered epithelial ferroptosis through miR-21-5p/GCLM signaling and thereby promoted fibroblast activation for fibrotic lesions, and highlighted the therapeutic potential of inhibiting ferroptosis against lung impairments upon SiNPs exposure.
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Affiliation(s)
- Songqing Lv
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, 100088, China
| | - Yan Li
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Xueyan Li
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Lingnan Zhu
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Yurou Zhu
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Caixia Guo
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, China.
| | - Yanbo Li
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China.
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Hu Y, Huang Y, Zong L, Lin J, Liu X, Ning S. Emerging roles of ferroptosis in pulmonary fibrosis: current perspectives, opportunities and challenges. Cell Death Discov 2024; 10:301. [PMID: 38914560 PMCID: PMC11196712 DOI: 10.1038/s41420-024-02078-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 06/13/2024] [Accepted: 06/18/2024] [Indexed: 06/26/2024] Open
Abstract
Pulmonary fibrosis (PF) is a chronic interstitial lung disorder characterized by abnormal myofibroblast activation, accumulation of extracellular matrix (ECM), and thickening of fibrotic alveolar walls, resulting in deteriorated lung function. PF is initiated by dysregulated wound healing processes triggered by factors such as excessive inflammation, oxidative stress, and coronavirus disease (COVID-19). Despite advancements in understanding the disease's pathogenesis, effective preventive and therapeutic interventions are currently lacking. Ferroptosis, an iron-dependent regulated cell death (RCD) mechanism involving lipid peroxidation and glutathione (GSH) depletion, exhibits unique features distinct from other RCD forms (e.g., apoptosis, necrosis, and pyroptosis). Imbalance between reactive oxygen species (ROS) production and detoxification leads to ferroptosis, causing cellular dysfunction through lipid peroxidation, protein modifications, and DNA damage. Emerging evidence points to the crucial role of ferroptosis in PF progression, driving macrophage polarization, fibroblast proliferation, and ECM deposition, ultimately contributing to alveolar cell death and lung tissue scarring. This review provides a comprehensive overview of the latest findings on the involvement and signaling mechanisms of ferroptosis in PF pathogenesis, emphasizing potential novel anti-fibrotic therapeutic approaches targeting ferroptosis for PF management.
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Affiliation(s)
- Yixiang Hu
- Department of Clinical Pharmacy, The Affiliated Xiangtan Center Hospital of Hunan University, Xiangtan, 411100, China
| | - Ying Huang
- Zhongshan Hospital of Traditional Chinese Medicine Afflilated to Guangzhou University of Chinese Medicine, Zhongshan, 528400, China
| | - Lijuan Zong
- Department of Rehabilitation Medicine, Zhongda Hospital of Southeast University, Nanjing, 210096, China
| | - Jiaxin Lin
- Department of Breast Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, 530000, China
| | - Xiang Liu
- Department of Clinical Pharmacy, The Affiliated Xiangtan Center Hospital of Hunan University, Xiangtan, 411100, China.
| | - Shipeng Ning
- Department of Breast Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, 530000, China.
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Sun Y, Ren Y, Song LY, Wang YY, Li TG, Wu YL, Li L, Yang ZS. Targeting iron-metabolism:a potential therapeutic strategy for pulmonary fibrosis. Biomed Pharmacother 2024; 172:116270. [PMID: 38364737 DOI: 10.1016/j.biopha.2024.116270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/23/2024] [Accepted: 02/07/2024] [Indexed: 02/18/2024] Open
Abstract
Iron homeostasisis is integral to normal physiological and biochemical processes of lungs. The maintenance of iron homeostasis involves the process of intake, storage and output, dependening on iron-regulated protein/iron response element system to operate tightly metabolism-related genes, including TFR1, DMT1, Fth, and FPN. Dysregulation of iron can lead to iron overload, which increases the virulence of microbial colonisers and the occurrence of oxidative stress, causing alveolar epithelial cells to undergo necrosis and apoptosis, and form extracellular matrix. Accumulated iron drive iron-dependent ferroptosis to exacerbated pulmonary fibrosis. Notably, the iron chelator deferoxamine and the lipophilic antioxidant ferritin-1 have been shown to attenuate ferroptosis and inhibit lipid peroxidation in pulmonary fibrosis. The paper summarises the regulatory mechanisms of dysregulated iron metabolism and ferroptosis in the development of pulmonary fibrosis. Targeting iron metabolism may be a potential therapeutic strategy for the prevention and treatment of pulmonary fibrosis.
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Affiliation(s)
- Yi Sun
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, School of Basic Medical Sciences, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Kunming, 650500, Yunnan, China
| | - Yu Ren
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, School of Basic Medical Sciences, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Kunming, 650500, Yunnan, China
| | - Li-Yun Song
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, School of Basic Medical Sciences, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Kunming, 650500, Yunnan, China
| | - Yin-Ying Wang
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, 1076 Yuhua Road Kunming, Yunnan 650500, China
| | - Tian-Gang Li
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, School of Basic Medical Sciences, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Kunming, 650500, Yunnan, China
| | - Ying-Li Wu
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, School of Basic Medical Sciences, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Kunming, 650500, Yunnan, China
| | - Li Li
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, School of Basic Medical Sciences, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Kunming, 650500, Yunnan, China.
| | - Zhong-Shan Yang
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, School of Basic Medical Sciences, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Kunming, 650500, Yunnan, China.
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Lai W, Wang B, Huang R, Zhang C, Fu P, Ma L. Ferroptosis in organ fibrosis: From mechanisms to therapeutic medicines. J Transl Int Med 2024; 12:22-34. [PMID: 38525436 PMCID: PMC10956731 DOI: 10.2478/jtim-2023-0137] [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] [Indexed: 03/26/2024] Open
Abstract
Fibrosis occurs in many organs, and its sustained progress can lead to organ destruction and malfunction. Although numerous studies on organ fibrosis have been carried out, its underlying mechanism is largely unknown, and no ideal treatment is currently available. Ferroptosis is an iron-dependent process of programmed cell death that is characterized by lipid peroxidation. In the past decade, a growing body of evidence demonstrated the association between ferroptosis and fibrotic diseases, while targeting ferroptosis may serve as a potential therapeutic strategy. This review highlights recent advances in the crosstalk between ferroptosis and organ fibrosis, and discusses ferroptosis-targeted therapeutic approaches against fibrosis that are currently being explored.
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Affiliation(s)
- Weijing Lai
- Department of Nephrology, Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College, Chengdu, 610500, Sichuan Province, China
- Department of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Bo Wang
- Department of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Rongshuang Huang
- Department of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Chuyue Zhang
- Department of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Ping Fu
- Department of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Liang Ma
- Department of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu, 610041, Sichuan Province, China
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Zhu X, Ji J, Han X. Osteopontin: an essential regulatory protein in idiopathic pulmonary fibrosis. J Mol Histol 2024; 55:1-13. [PMID: 37878112 DOI: 10.1007/s10735-023-10169-y] [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: 03/23/2023] [Accepted: 10/12/2023] [Indexed: 10/26/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive, chronic lung disease characterized by abnormal proliferation and activation of fibroblasts, excessive accumulation of extracellular matrix (ECM), inflammatory damage, and disrupted alveolar structure. Despite its increasing morbidity and mortality rates, effective clinical treatments for IPF remain elusive. Osteopontin (OPN), a multifunctional ECM protein found in various tissues, has been implicated in numerous biological processes such as bone remodeling, innate immunity, acute and chronic inflammation, and cancer. Recent studies have highlighted the pivotal role of OPN in the pathogenesis of IPF. This review aims to delve into the involvement of OPN in the inflammatory response, ECM deposition, and epithelial-mesenchymal transition (EMT) during IPF, and intends to lay a solid theoretical groundwork for the development of therapeutic strategies for IPF.
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Affiliation(s)
- Xiaoyu Zhu
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Hankou Road 22, Nanjing, 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, 210093, China
| | - Jie Ji
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Hankou Road 22, Nanjing, 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, 210093, China
| | - Xiaodong Han
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Hankou Road 22, Nanjing, 210093, China.
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, 210093, China.
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Wang Q, Shang Y, Li Y, Li X, Wang X, He Y, Ma J, Ning S, Chen H. Identification of cuproptosis-related diagnostic biomarkers in idiopathic pulmonary fibrosis. Medicine (Baltimore) 2024; 103:e36801. [PMID: 38215148 PMCID: PMC10783416 DOI: 10.1097/md.0000000000036801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 12/06/2023] [Indexed: 01/14/2024] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive and fatal lung disease with clinical and pathological heterogeneity. Recent studies have identified cuproptosis as a novel cell death mechanism. However, the role of cuproptosis-related genes in the pathogenesis of IPF is still unclear. Two IPF datasets of the Gene Expression Omnibus database were studied. Mann-Whitney U test, correlation analysis, functional enrichment analyses, single-sample gene set enrichment analysis, CIBERSORT, unsupervised clustering, weighted gene co-expression network analysis, and receiver operating characteristic curve analysis were used to conduct our research. The dysregulated cuproptosis-related genes and immune responses were identified between IPF patients and controls. Two cuproptosis-related molecular clusters were established in IPF, the high immune score group (C1) and the low immune score group (C2). Significant heterogeneity in immunity between clusters was revealed by functional analyses results. The module genes with the strongest correlation to the 2 clusters were identified by weighted gene co-expression network analysis results. Seven hub genes were found using the Cytoscape software. Ultimately, 2 validated diagnostic biomarkers of IPF, CDKN2A and NEDD4, were obtained. Subsequently, the results were validated in GSE47460. Our investigation illustrates that CDKN2A and NEDD4 may be valid biomarkers that were useful for IPF diagnosis and copper-related clustering.
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Affiliation(s)
- Qi Wang
- Department of Pulmonary and Critical Care Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yu Shang
- Department of Respiration, The First Hospital of Harbin, Harbin, China
| | - Yupeng Li
- Department of Pulmonary and Critical Care Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xincheng Li
- Department of Pulmonary and Critical Care Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xue Wang
- Department of Pulmonary and Critical Care Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yaowu He
- Department of Pulmonary and Critical Care Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jing Ma
- Department of Pulmonary and Critical Care Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shangwei Ning
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Hong Chen
- Department of Pulmonary and Critical Care Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, China
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7
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Zhai X, Zhu J, Li J, Wang Z, Zhang G, Nie Y. Fraxetin alleviates BLM-induced idiopathic pulmonary fibrosis by inhibiting NCOA4-mediated epithelial cell ferroptosis. Inflamm Res 2023; 72:1999-2012. [PMID: 37798541 DOI: 10.1007/s00011-023-01800-5] [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: 07/14/2023] [Revised: 09/13/2023] [Accepted: 09/21/2023] [Indexed: 10/07/2023] Open
Abstract
INTRODUCTION Idiopathic pulmonary fibrosis (IPF) is a debilitating lung condition with few available treatments. The early driver of wound repair that contributes to IPF has been extensively identified as repetitive alveolar epithelial damage. According to recent reports, IPF is linked to ferroptosis, a unique type of cell death characterized by a fatal buildup of iron and lipid peroxidation. OBJECTIVE AND METHOD There is little information on epithelial cells that induce pulmonary fibrosis by going through ferroptosis. In this study, we used bleomycin (BLM) to examine the impact of ferroptosis on IPF in mouse lung epithelial cells (MLE-12). RESULTS We discovered that BLM increases ferroptosis in MLE-12. Additionally, we found that NCOA4 is overexpressed and plays a key role in the ferroptosis of epithelial cells throughout the IPF process. Using Molecular docking, we found that Fraxetin, a natural component extracted from Fraxinus rhynchophylla, formed a stable binding to NCOA4. In vitro investigations showed that Fraxetin administration greatly decreased ferroptosis and NCOA4 expression, which in turn lowered the release of inflammatory cytokines. CONCLUSION Fraxetin treatment significantly alleviated BLM-induced lung inflammation and fibrosis. Our findings imply that fraxetin possesses inhibitory roles in ferroptosis and can be a potential drug against IPF.
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Affiliation(s)
- Xiaorun Zhai
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Jingyu Zhu
- School of Life Sciences and Health Engineering, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Jiao Li
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Zhixu Wang
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Gufang Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Yunjuan Nie
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China.
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Huang X, Song Y, Wei L, Guo J, Xu W, Li M. The emerging roles of ferroptosis in organ fibrosis and its potential therapeutic effect. Int Immunopharmacol 2023; 116:109812. [PMID: 36746022 DOI: 10.1016/j.intimp.2023.109812] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/19/2022] [Accepted: 01/28/2023] [Indexed: 02/05/2023]
Abstract
Fibrosis refers to the process of excessive deposition of extracellular matrix (ECM) proteins, eventually leading to excessive scar formation. Fibrotic diseases can occur in many organs and result in high mortality. Currently, there is no effective treatment for fibrosis. As a new form of regulatory cell death (RCD), ferroptosis is mainly mediated by iron overload and lipid peroxidation. Emerging evidence shows that ferroptosis is involved in the pathogenesis of fibrotic diseases. Generally, ferroptosis of parenchymal cells exacerbates the progression of fibrosis, while ferroptosis of myofibroblasts may ameliorate it. Therefore, studying the mechanisms of ferroptosis in fibrosis and targeting ferroptosis in certain cells can provide valuable insights into the pathogenesis of fibrotic diseases. In the present review, we summarized the mechanisms and regulators of ferroptosis and then described the mechanism of fibrosis and the role of ferroptosis in fibrotic diseases, including liver fibrosis, renal fibrosis, pulmonary fibrosis, and myocardial fibrosis.
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Affiliation(s)
- Xuege Huang
- Institute of Biology and Medical Sciences, Soochow University, Building 703, 199 Ren-ai Road, Suzhou 215123, China
| | - Yahui Song
- Institute of Biology and Medical Sciences, Soochow University, Building 703, 199 Ren-ai Road, Suzhou 215123, China
| | - Lin Wei
- Institute of Biology and Medical Sciences, Soochow University, Building 703, 199 Ren-ai Road, Suzhou 215123, China
| | - Jing Guo
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA.
| | - Wei Xu
- Institute of Biology and Medical Sciences, Soochow University, Building 703, 199 Ren-ai Road, Suzhou 215123, China.
| | - Min Li
- Institute of Biology and Medical Sciences, Soochow University, Building 703, 199 Ren-ai Road, Suzhou 215123, China.
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Role of Ferroptosis in Regulating the Epithelial-Mesenchymal Transition in Pulmonary Fibrosis. Biomedicines 2023; 11:biomedicines11010163. [PMID: 36672671 PMCID: PMC9856078 DOI: 10.3390/biomedicines11010163] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/19/2022] [Accepted: 01/05/2023] [Indexed: 01/11/2023] Open
Abstract
Idiopathic pulmonary fibrosis is a chronic interstitial lung disease whose pathogenesis involves a complex interaction of cell types and signaling pathways. Lung epithelial cells responding to repeated injury experience persistent inflammation and sustained epithelial-mesenchymal transition (EMT). The persistence of EMT-induced signals generates extracellular matrix accumulation, thereby causing fibrosis. Ferroptosis is a newly characterized iron-dependent non-apoptotic regulated cell death. Increased iron accumulation can increase iron-induced oxidant damage in alveolar epithelial cells. Studies have demonstrated that iron steady states and oxidation steady states play an important role in the iron death regulation of EMT. This review summarizes the role of ferroptosis in regulating EMT in pulmonary fibrosis, aiming to provide a new idea for the prevention and treatment of this disease.
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Zhao J, Wang C, Fan R, Liu X, Zhang W. A prognostic model based on clusters of molecules related to epithelial-mesenchymal transition for idiopathic pulmonary fibrosis. Front Genet 2023; 13:1109903. [PMID: 36685840 PMCID: PMC9853015 DOI: 10.3389/fgene.2022.1109903] [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: 11/28/2022] [Accepted: 12/22/2022] [Indexed: 01/07/2023] Open
Abstract
Background: Most patients with idiopathic pulmonary fibrosis (IPF) have poor prognosis; Effective predictive models for these patients are currently lacking. Epithelial-mesenchymal transition (EMT) often occurs during idiopathic pulmonary fibrosis development, and is closely related to multiple pathways and biological processes. It is thus necessary for clinicians to find prognostic biomarkers with high accuracy and specificity from the perspective of Epithelial-mesenchymal transition. Methods: Data were obtained from the Gene Expression Omnibus database. Using consensus clustering, patients were grouped based on Epithelial-mesenchymal transition-related genes. Next, functional enrichment analysis was performed on the results of consensus clustering using gene set variation analysis. The gene modules associated with Epithelial-mesenchymal transition were obtained through weighted gene co-expression network analysis. Prognosis-related genes were screened via least absolute shrinkage and selection operator (LASSO) regression analysis. The model was then evaluated and validated using survival analysis and time-dependent receiver operating characteristic (ROC) analysis. Results: A total of 239 Epithelial-mesenchymal transition-related genes were obtained from patients with idiopathic pulmonary fibrosis. Six genes with strong prognostic associations (C-X-C chemokine receptor type 7 [CXCR7], heparan sulfate-glucosamine 3-sulfotransferase 1 [HS3ST1], matrix metallopeptidase 25 [MMP25], murine retrovirus integration site 1 [MRVI1], transmembrane four L6 family member 1 [TM4SF1], and tyrosylprotein sulfotransferase 1 [TPST1]) were identified via least absolute shrinkage and selection operator and Cox regression analyses. A prognostic model was then constructed based on the selected genes. Survival analysis showed that patients with high-risk scores had worse prognosis based on the training set [hazard ratio (HR) = 7.31, p < .001] and validation set (HR = 2.85, p = .017). The time-dependent receiver operating characteristic analysis showed that the area under the curve (AUC) values in the training set were .872, .905, and .868 for 1-, 2-, and 3-year overall survival rates, respectively. Moreover, the area under the curve values in the validation set were .814, .814, and .808 for 1-, 2-, and 3-year overall survival rates, respectively. Conclusion: The independent prognostic model constructed from six Epithelial-mesenchymal transition-related genes provides bioinformatics guidance to identify additional prognostic markers for idiopathic pulmonary fibrosis in the future.
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Affiliation(s)
- Jiarui Zhao
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Can Wang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Rui Fan
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Xiangyang Liu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Wei Zhang
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China,*Correspondence: Wei Zhang,
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Zhou M, Ouyang J, Zhang G, Zhu X. Prognostic value of tripartite motif (TRIM) family gene signature from bronchoalveolar lavage cells in idiopathic pulmonary fibrosis. BMC Pulm Med 2022; 22:467. [PMID: 36474231 PMCID: PMC9724366 DOI: 10.1186/s12890-022-02269-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Tripartite motif (TRIM) family genes get involved in the pathogenesis and development of various biological processes; however, the prognostic value of TRIM genes for idiopathic pulmonary fibrosis (IPF) needs to be explored. METHODS We acquired gene expression based on bronchoalveolar lavage (BAL) cells and clinical data of three independent IPF cohorts in the GSE70866 dataset from the Gene expression omnibus (GEO) database. Differentially expressed TRIM genes (DETGs) between IPF patients and healthy donors were identified and used to establish a risk signature by univariate and multivariate Cox regression analysis in the training cohort. The risk signature was further validated in other IPF cohorts, and compared with previously published signatures. Moreover, we performed functional enrichment analysis to explore the potential mechanisms. Eventually, the quantitative real time PCR was conducted to validate the expressions of the key genes in BAL from 12 IPF patients and 12 non-IPF controls from our institution. RESULTS We identified 4 DETGs including TRIM7, MEFV, TRIM45 and TRIM47 significantly associated with overall survival (OS) of IPF patients (P < 0.05). A multiple stepwise Cox regression analysis was performed to construct a 4-TRIM-gene prognostic signature. We categorized IPF patients into one low-risk group and the other high-risk group as per the average risk value of the TRIM prognostic signature in the training and validation cohorts. The IPF individuals in the low-risk group demonstrated an obvious OS advantage compared with the high-risk one (P < 0.01). The time-dependent receiver operating characteristic approach facilitated the verification of the predictive value of the TRIM prognostic signature in the training and validation cohorts, compared with other published signatures. A further investigation of immune cells and IPF survival displayed that higher proportion of resting memory CD4+ T cells and resting mast cells harbored OS advantage over lower proportion, however lower proportion of neutrophils, activated dendritic cells and activated NK cells indicated worse prognosis. CONCLUSION The TRIM family genes are significant for the prognosis of IPF and our signature could serve as a robust model to predict OS.
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Affiliation(s)
- Mi Zhou
- grid.452206.70000 0004 1758 417XDepartment of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jie Ouyang
- grid.452206.70000 0004 1758 417XDepartment of Urology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016 China
| | - Guoqing Zhang
- grid.452206.70000 0004 1758 417XDepartment of Urology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016 China
| | - Xin Zhu
- grid.452206.70000 0004 1758 417XDepartment of Urology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016 China
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Pei Z, Qin Y, Fu X, Yang F, Huo F, Liang X, Wang S, Cui H, Lin P, Zhou G, Yan J, Wu J, Chen ZN, Zhu P. Inhibition of ferroptosis and iron accumulation alleviates pulmonary fibrosis in a bleomycin model. Redox Biol 2022; 57:102509. [PMID: 36302319 PMCID: PMC9614651 DOI: 10.1016/j.redox.2022.102509] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 10/10/2022] [Indexed: 11/30/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic progressive disease characterized by excessive proliferation of fibroblasts and excessive accumulation of extracellular matrix (ECM). Ferroptosis is a novel form of cell death characterized by the lethal accumulation of iron and lipid peroxidation, which is associated with many diseases. Our study addressed the potential role played by ferroptosis and iron accumulation in the progression of pulmonary fibrosis. We found that the inducers of pulmonary fibrosis and injury, namely, bleomycin (BLM) and lipopolysaccharide (LPS), induced ferroptosis of lung epithelial cells. Both the ferroptosis inhibitor liproxstatin-1 (Lip-1) and the iron chelator deferoxamine (DFO) alleviated the symptoms of pulmonary fibrosis induced by bleomycin or LPS. TGF-β stimulation upregulated the expression of transferrin receptor protein 1 (TFRC) in the human lung fibroblast cell line (MRC-5) and mouse primary lung fibroblasts, resulting in increased intracellular Fe2+, which promoted the transformation of fibroblasts into myofibroblasts. Mechanistically, TGF-β enhanced the expression and nuclear localization of the transcriptional coactivator tafazzin (TAZ), which combined with the transcription factor TEA domain protein (TEAD)-4 to promote the transcription of TFRC. In addition, elevated Fe2+ failed to induce the ferroptosis of fibroblasts, which might be related to the regulation of iron export and lipid metabolism. Finally, we specifically knocked out TFRC expression in fibroblasts in mice, and compared with those in the control mice, the symptoms of pulmonary fibrosis were reduced in the knockout mice after bleomycin induction. Collectively, these findings suggest the therapeutic potential of ferroptosis inhibitors and iron chelators in treating pulmonary fibrosis.
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Affiliation(s)
- Zhuo Pei
- National Translational Science Center for Molecular Medicine and Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Yifei Qin
- Guangzhou (Jinan) Biomedical Research and Development Center, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Xianghui Fu
- National Translational Science Center for Molecular Medicine and Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Fengfan Yang
- National Translational Science Center for Molecular Medicine and Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Fei Huo
- National Translational Science Center for Molecular Medicine and Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Xue Liang
- National Translational Science Center for Molecular Medicine and Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Shijie Wang
- National Translational Science Center for Molecular Medicine and Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Hongyong Cui
- National Translational Science Center for Molecular Medicine and Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Peng Lin
- National Translational Science Center for Molecular Medicine and Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Gang Zhou
- National Translational Science Center for Molecular Medicine and Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Jiangna Yan
- National Translational Science Center for Molecular Medicine and Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Jiao Wu
- National Translational Science Center for Molecular Medicine and Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China.
| | - Zhi-Nan Chen
- National Translational Science Center for Molecular Medicine and Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China.
| | - Ping Zhu
- National Translational Science Center for Molecular Medicine and Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China.
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A Novel 5-Methylcytosine- and Immune-Related Prognostic Signature Is a Potential Marker of Idiopathic Pulmonary Fibrosis. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:1685384. [PMID: 36262873 PMCID: PMC9574547 DOI: 10.1155/2022/1685384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 07/15/2022] [Accepted: 09/06/2022] [Indexed: 11/18/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is the most common and highly lethal pulmonary interstitial lung disease. The current study is aimed at investigating reliable markers suitable for the treatment and identification of IPF. This study constructed the first 5-methylcytosine- (m5C-) and immune-related prognostic signature (m5CPS) based on coexpressed genes of m5C regulatory genes and immune-related genes. The m5CPS was established using the training cohort (n = 68) and verified using the test (n = 44) and validation (n = 64) cohorts. The area under the curve (AUC) values were utilized to evaluate the accuracy of m5CPS in predicting the survival of IPF patients. The Kaplan-Meier curves and Cox regression analyses were used to assess the prognostic effect of m5CPS. The AUC was utilized to evaluate the reliability of m5CPS in distinguishing IPF patients from healthy individuals. In terms of the results, m5CPS could predict the one-, three-, and five-year survival rates of IPF patients with high accuracy (AUC = .803–.973). In fact, m5CPS is not only an independent indicator of the poor prognosis of IPF patients (hazard ratio > 1; p < .05) but can also distinguish IPF patients from healthy individuals (AUC = .862). Also, m5CPS may affect the immune response and inflammatory response, and it was positively associated with the infiltration levels of active mast cells (p < .05). In sum, the current study establishes a novel m5CPS for IPF and reveals the role of m5CPS as a reliable marker for predicting the prognosis and disease status of IPF patients.
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Targeting ferroptosis as a vulnerability in pulmonary diseases. Cell Death Dis 2022; 13:649. [PMID: 35882850 PMCID: PMC9315842 DOI: 10.1038/s41419-022-05070-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/29/2022] [Accepted: 07/04/2022] [Indexed: 01/21/2023]
Abstract
Ferroptosis is an iron-dependent regulated cell death marked by excessive oxidative phospholipids (PLs). The polyunsaturated fatty acids-containing phospholipids (PUFA-PLs) are highly susceptible to lipid peroxidation under oxidative stress. Numerous pulmonary diseases occurrences and degenerative pathologies are driven by ferroptosis. This review discusses the role of ferroptosis in the pathogenesis of pulmonary diseases including asthma, lung injury, lung cancer, fibrotic lung diseases, and pulmonary infection. Additionally, it is proposed that targeting ferroptosis is a potential treatment for pulmonary diseases, particularly drug-resistant lung cancer or antibiotic-resistant pulmonary infection, and reduces treatment-related adverse events.
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Huang T, He WY. Construction and Validation of a Novel Prognostic Signature of Idiopathic Pulmonary Fibrosis by Identifying Subtypes Based on Genes Related to 7-Methylguanosine Modification. Front Genet 2022; 13:890530. [PMID: 35754799 PMCID: PMC9218869 DOI: 10.3389/fgene.2022.890530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 05/16/2022] [Indexed: 11/24/2022] Open
Abstract
Background: Idiopathic pulmonary fibrosis (IPF) is the interstitial lung disease with the highest incidence and mortality. The lack of specific markers results in limited treatment methods for IPF patients. Numerous prognostic signatures represented effective indexes in predicting the survival of patients in various diseases; however, little is investigated on their application in IPF. Methods: This study attempted to explore the clinical markers suitable for IPF by constructing a prognostic signature from the perspective of 7-methylguanosine (m7G). An m7G-related prognostic signature (m7GPS) was established based on the discovery cohort with the LASSO algorithm and was verified by internal and external validation cohorts. The area under the curve (AUC) values were utilized to assess the accuracy of m7GPS in predicting the prognosis of IPF patients and the ability of m7GPS in screening IPF patients. Kaplan-Meier curves and Cox regression analyses were used to identify the relationship of m7GPS with the prognosis of IPF individuals. Enrichment analyses, CIBERSORT algorithm, and weighted gene co-expression network analysis were applied to explore the underlying mechanisms and correlation of m7GPS in IPF. Results: The two m7G regulatory genes can divide IPF into subtypes 1 and 2, and subtype 2 demonstrated a poor prognosis for IPF patients (p < 0.05). For the first time in this field, the m7GPS was constructed. m7GPS made it feasible to predict the 1–5 years survival status of IPF patients (AUC = 0.730–0.971), and it was an independent prognostic risk factor for IPF patients (hazard ratio > 1, p < 0.05). The conspicuous ability of m7GPS to screen IPF patients from the healthy was also revealed by an AUC value of 0.960. The roles of m7GPS in IPF may link to inflammation, immune response, and immune cell levels. Seven genes (CYR61, etc.) were identified as hub genes of m7GPS in IPF. Three drugs (ZM447439-1050, AZD1332-1463, and Ribociclib-1632) were considered sensitive to patients with high m7GPS risk scores. Conclusion: This study developed a novel m7GPS, which is a reliable indicator for predicting the survival status of IPF patients and is identified as an effective marker for prognosis and screening of IPF patients.
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Affiliation(s)
- Tao Huang
- Department of Cardiothoracic Vascular Surgery, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Wei-Ying He
- The First Clinical Medical College, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Li Y, Yang Y, Yang Y. Multifaceted Roles of Ferroptosis in Lung Diseases. Front Mol Biosci 2022; 9:919187. [PMID: 35813823 PMCID: PMC9263225 DOI: 10.3389/fmolb.2022.919187] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/20/2022] [Indexed: 01/08/2023] Open
Abstract
Ferroptosis is a distinct type of programmed cell death (PCD) that depends on iron and is characterized by the accumulation of intracellular iron, exhaustion of glutathione, deactivation of glutathione peroxidase, and promotion of lipid peroxidation. Recently, accumulated investigations have demonstrated that ferroptosis is strongly correlated with the initiation and development of many lung diseases. In this review, we summarized the contribution of ferroptosis to the pathologic process of lung diseases, namely, obstructive lung diseases (chronic obstructive pulmonary disease, asthma, and cystic fibrosis), interstitial lung diseases (pulmonary fibrosis of different causes), pulmonary diseases of vascular origin (ischemia-reperfusion injury and pulmonary hypertension), pulmonary infections (bacteria, viruses, and fungi), acute lung injury, acute respiratory distress syndrome, obstructive sleep apnea, pulmonary alveolar proteinosis, and lung cancer. We also discussed the therapeutic potential of targeting ferroptosis for these lung diseases.
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Affiliation(s)
- Yi Li
- Institute of Respiratory Health, West China Hospital, Sichuan University, Chengdu, China
- Precision Medicine Key Laboratory, West China Hospital, Sichuan University, Chengdu, China
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Ying Yang
- Institute of Respiratory Health, West China Hospital, Sichuan University, Chengdu, China
- Precision Medicine Key Laboratory, West China Hospital, Sichuan University, Chengdu, China
| | - Yongfeng Yang
- Institute of Respiratory Health, West China Hospital, Sichuan University, Chengdu, China
- Precision Medicine Key Laboratory, West China Hospital, Sichuan University, Chengdu, China
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Yongfeng Yang,
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Zhou J, Tan Y, Wang R, Li X. Role of Ferroptosis in Fibrotic Diseases. J Inflamm Res 2022; 15:3689-3708. [PMID: 35783244 PMCID: PMC9248952 DOI: 10.2147/jir.s358470] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 06/02/2022] [Indexed: 11/23/2022] Open
Abstract
Ferroptosis is a unique and pervasive form of regulated cell death driven by iron-dependent phospholipid peroxidation. It results from disturbed cellular metabolism and imbalanced redox homeostasis and is regulated by various cellular metabolic pathways. Recent preclinical studies have revealed that ferroptosis may be an attractive therapeutic target in fibrotic diseases, such as liver fibrosis, pulmonary fibrosis, kidney fibrosis, and myocardial fibrosis. This review summarizes the latest knowledge on the regulatory mechanism of ferroptosis and its roles in fibrotic diseases. These updates may provide a novel perspective for the treatment of fibrotic diseases as well as future research.
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Affiliation(s)
- Jian Zhou
- Department of Anesthesiology, Laboratory of Anesthesia and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Yuan Tan
- Department of Anesthesiology, Laboratory of Anesthesia and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Rurong Wang
- Department of Anesthesiology, Laboratory of Anesthesia and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Xuehan Li
- Department of Anesthesiology, Laboratory of Anesthesia and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
- Correspondence: Xuehan Li, Department of Anesthesiology, Laboratory of Anesthesia and Critical Care Medicine, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, Sichuan Province, 610041, People’s Republic of China, Tel +86 18980099133, Email
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