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Nath P, Alfarsi LH, El-Ansari R, Masisi BK, Erkan B, Fakroun A, Ellis IO, Rakha EA, Green AR. The amino acid transporter SLC7A11 expression in breast cancer. Cancer Biol Ther 2024; 25:2291855. [PMID: 38073087 PMCID: PMC10761065 DOI: 10.1080/15384047.2023.2291855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 12/02/2023] [Indexed: 12/18/2023] Open
Abstract
Breast cancer (BC), characterized by its diverse molecular profiles and clinical outcomes, presents a significant challenge in the development of effective therapeutic strategies. Metabolic reprogramming, a defining characteristic of cancer, has emerged as a promising target for novel therapies. SLC7A11, an amino acid transporter that facilitates cysteine uptake in exchange for glutamate, plays a crucial role in sustaining the altered metabolism of cancer cells. This study delves into the comprehensive analysis of SLC7A11 at the genomic, transcriptomic, and protein levels in extensive BC datasets to elucidate its potential role in different BC subtypes. SLC7A11 gene copy number and mRNA expression were evaluated using the Molecular Taxonomy of Breast Cancer International Consortium (METABRIC) cohort (n = 1,980) and Breast Cancer Gene Expression Miner (n = 4,712). SLC7A11 protein was assessed using immunohistochemistry in a large BC cohort (n = 1,981). Additionally, The Cancer Genome Atlas (TCGA) dataset was used to explore SLC7A11 DNA methylation patterns using MethSurv (n = 782) and association of SLC7A11 mRNA expression with immune infiltrates using TIMER (n = 1,100). High SLC7A11 mRNA and SLC7A11 protein expression were significantly associated with high tumor grade (p ≤ .02), indicating a potential role in cancer progression. Interestingly, SLC7A11 copy number gain was observed in HER2+ tumors (p = .01), suggesting a subtype-specific association. In contrast, SLC7A11 mRNA expression was higher in the basal-like/triple-negative (TN; p < .001) and luminal B tumors (p = .02), highlighting its differential expression across BC subtypes. Notably, high SLC7A11 protein expression was predominantly observed in Estrogen Receptor (ER)-negative and Triple Negative (TN) BC, suggesting a role in these aggressive subtypes. Further analysis revealed that SLC7A11 was positively correlated with other amino acid transporters and enzymes associated with glutamine metabolism, implying a coordinated role in metabolic regulation. Additionally, SLC7A11 gene expression was positively associated with neutrophil and macrophage infiltration, suggesting a potential link between SLC7A11 and tumor immunity. Our findings suggest that SLC7A11 plays a significant role in BC metabolism, demonstrating differential expression across subtypes and associations with poor patient outcomes. Further functional studies are warranted to elucidate the precise mechanisms by which SLC7A11 contributes to BC progression and to explore its potential as a therapeutic target.
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Affiliation(s)
- Preyanka Nath
- Nottingham Breast Cancer Research Centre, Academic Unit of Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK
| | - Lutfi H. Alfarsi
- Nottingham Breast Cancer Research Centre, Academic Unit of Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK
| | - Rokaya El-Ansari
- Nottingham Breast Cancer Research Centre, Academic Unit of Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK
| | - Brendah K. Masisi
- Nottingham Breast Cancer Research Centre, Academic Unit of Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK
| | - Busra Erkan
- Nottingham Breast Cancer Research Centre, Academic Unit of Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK
| | - Ali Fakroun
- Nottingham Breast Cancer Research Centre, Academic Unit of Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK
| | - Ian O. Ellis
- Nottingham Breast Cancer Research Centre, Academic Unit of Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK
- Cellular Pathology, Nottingham University Hospitals NHS Trust, Nottingham City Hospital, Nottingham, UK
| | - Emad A. Rakha
- Nottingham Breast Cancer Research Centre, Academic Unit of Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK
- Cellular Pathology, Nottingham University Hospitals NHS Trust, Nottingham City Hospital, Nottingham, UK
| | - Andrew R. Green
- Nottingham Breast Cancer Research Centre, Academic Unit of Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK
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Yin Z, Liu Q, Gao Y, Wang R, Qi Y, Wang D, Chen L, Yin X, He M, Li W. GOLPH3 promotes tumor malignancy via inhibition of ferroptosis by upregulating SLC7A11 in cholangiocarcinoma. Mol Carcinog 2024; 63:912-925. [PMID: 38390729 DOI: 10.1002/mc.23697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 01/07/2024] [Accepted: 01/11/2024] [Indexed: 02/24/2024]
Abstract
Golgi phosphoprotein 3 (GOLPH3) has been reported as an oncogene in various tumors; however, the role and function of GOLPH3 and its relevant molecular mechanism in cholangiocarcinoma (CCA) are unclear. Herein, GOLPH3 expression in CCA tissues was observed to be significantly higher than that in paired adjacent noncancerous tissues. Clinicopathological analysis showed that GOLPH3 expression correlated positively with the tumor-node-metastasis stage. In addition, GOLPH3 expression correlated inversely with the overall survival of patients with CCA. Multivariate analysis showed that GOLPH3 was an independent prognostic factor for patients with CCA. Transcriptome analysis (RNA sequencing) of GOLPH3 knockdown cells showed that the expression levels of nine ferroptosis-related genes were significantly changed, indicating the important biological function of GOLPH3 in ferroptosis in CCA cells. Furthermore, GOLPH3 knockdown could significantly promote Erastin-induced ferroptosis in vitro and suppress tumor growth in vivo. Overexpression of GOLPH3 had the opposite effect on this phenotype. Further studies revealed that GOLPH3 knockdown was significantly associated with a decrease in cysteine content, an accumulation of the lipid peroxidation product malondialdehyde, an increase in reactive oxygen species, and sensitized CCA cells to Erastin-induced ferroptosis. Moreover, changes in GOLPH3 expression were found to be consistent with the expression of light chain subunit solute carrier family 7 member 11 (SLC7A11). Thus, our study suggested that GOLPH3 functions as an oncoprotein in CCA and may suppress ferroptosis by facilitating SLC7A11 expression, suggesting that GOLPH3 could serve as a therapeutic target for CCA treatment.
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Affiliation(s)
- Zheng Yin
- Laboratory of General Surgery, Sun Yat-sen University, Guangzhou, China
| | - Qi Liu
- Department of Pancreatic-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ying Gao
- Laboratory of General Surgery, Sun Yat-sen University, Guangzhou, China
| | - Ruizhi Wang
- Department of Laboratory Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yunling Qi
- Laboratory of General Surgery, Sun Yat-sen University, Guangzhou, China
| | - Dong Wang
- Department of Laboratory Medicine, Sun Yat-sen University, Guangzhou, China
| | - Lianzhou Chen
- Laboratory of General Surgery, Sun Yat-sen University, Guangzhou, China
| | - Xiaoyu Yin
- Department of Pancreatic-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Meifang He
- Laboratory of General Surgery, Sun Yat-sen University, Guangzhou, China
| | - Wen Li
- Laboratory of General Surgery, Sun Yat-sen University, Guangzhou, China
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Zou Z, Cheng Q, Zhou J, Guo C, Hadjinicolaou AV, Salio M, Liang X, Yang C, Du Y, Yao W, Wang D, Cerundolo V, Wang Q, Xia M. ATF4-SLC7A11-GSH axis mediates the acquisition of immunosuppressive properties by activated CD4 + T cells in low arginine condition. Cell Rep 2024; 43:113995. [PMID: 38527061 DOI: 10.1016/j.celrep.2024.113995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 01/21/2024] [Accepted: 03/08/2024] [Indexed: 03/27/2024] Open
Abstract
The tumor microenvironment (TME) is restricted in metabolic nutrients including the semi-essential amino acid arginine. While complete arginine deprivation causes T cell dysfunction, it remains unclear how arginine levels fluctuate in the TME to shape T cell fates. Here, we find that the 20-μM low arginine condition, representing the levels found in the plasma of patients with cancers, confers Treg-like immunosuppressive capacities upon activated T cells. In vivo mouse tumor models and human single-cell RNA-sequencing datasets reveal positive correlations between low arginine condition and intratumoral Treg accumulation. Mechanistically, low arginine-activated T cells engage in metabolic and transcriptional reprogramming, using the ATF4-SLC7A11-GSH axis, to preserve their suppressive function. These findings improve our understanding of the role of arginine in human T cell biology with potential applications for immunotherapy strategies.
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Affiliation(s)
- Ziqi Zou
- Institute of Immunology, and Department of Dermatology and Venereology of the Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Qian Cheng
- MRC Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, OX3 9DS Oxford, UK
| | - Jiajie Zhou
- Institute of Immunology, and Department of Dermatology and Venereology of the Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Chenyao Guo
- Institute of Immunology, and Department of Dermatology and Venereology of the Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Andreas V Hadjinicolaou
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, OX3 9DS Oxford, UK; Early Cancer Institute, Department of Oncology, Hutchison Research Centre, University of Cambridge, CB2 0XZ Cambridge, UK
| | - Mariolina Salio
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, OX3 9DS Oxford, UK
| | - Xinghua Liang
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou 311121, China
| | - Cuiyu Yang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Yue Du
- Institute of Immunology, and Department of Dermatology and Venereology of the Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Weiran Yao
- Institute of Immunology, and Department of Dermatology and Venereology of the Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Dongrui Wang
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou 311121, China
| | - Vincenzo Cerundolo
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, OX3 9DS Oxford, UK
| | - Qingqing Wang
- Institute of Immunology, and Department of Dermatology and Venereology of the Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou 311121, China.
| | - Meng Xia
- Institute of Immunology, and Department of Dermatology and Venereology of the Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China; MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, OX3 9DS Oxford, UK.
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Zong K, Lin C, Luo K, Deng Y, Wang H, Hu J, Chen S, Li R. Ferroptosis-related lncRNA NRAV affects the prognosis of hepatocellular carcinoma via the miR-375-3P/SLC7A11 axis. BMC Cancer 2024; 24:496. [PMID: 38637761 PMCID: PMC11027313 DOI: 10.1186/s12885-024-12265-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 04/15/2024] [Indexed: 04/20/2024] Open
Abstract
Ferroptosis has important value in cancer treatment. It is significant to explore the new ferroptosis-related lncRNAs prediction model in Hepatocellular carcinoma (HCC) and the potential molecular mechanism of ferroptosis-related lncRNAs. We constructed a prognostic multi-lncRNA signature based on ferroptosis-related differentially expressed lncRNAs in HCC. qRT-PCR was applied to determine the expression of lncRNA in HCC cells. The biological roles of NRAV in vitro and in vivo were determined by performing a series of functional experiments. Furthermore, dual-luciferase reporter and RNA immunoprecipitation (RIP) assays were used to confirm the interaction of NRAV with miR-375-3P. We identified 6 differently expressed lncRNAs associated with the prognosis of HCC. Kaplan-Meier analyses revealed the high-risk lncRNAs signature associated with poor prognosis of HCC. Moreover, the AUC of the lncRNAs signature showed utility in predicting HCC prognosis. Further functional experiments show that the high expression of NRAV can strengthen the viciousness of HCC. Interestingly, we found that NRAV can enhance iron export and ferroptosis resistance. Further study showed that NRAV competitively binds to miR-375-3P and attenuates the inhibitory effect of miR-375-3P on SLC7A11, affecting the prognosis of patients with HCC. In conclusion, We developed a novel ferroptosis-related lncRNAs prognostic model with important predictive value for the prognosis of HCC. NRAV is important in ferroptosis induction through the miR-375-3P/SLC7A11 axis.
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Affiliation(s)
- Ke Zong
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Caifeng Lin
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, No. 134, East Street, Fuzhou, Fujian Province, 350001, PR China
- Department of Hepatopancreatobiliary Surgery, Fujian Provincial Hospital, No. 134, East Street, Fuzhou, Fujian Province, 350001, PR China
| | - Kai Luo
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Yilei Deng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Hongfei Wang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Jianfei Hu
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, No. 134, East Street, Fuzhou, Fujian Province, 350001, PR China
- Department of Hepatopancreatobiliary Surgery, Fujian Provincial Hospital, No. 134, East Street, Fuzhou, Fujian Province, 350001, PR China
| | - Shi Chen
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, No. 134, East Street, Fuzhou, Fujian Province, 350001, PR China.
- Department of Hepatopancreatobiliary Surgery, Fujian Provincial Hospital, No. 134, East Street, Fuzhou, Fujian Province, 350001, PR China.
| | - Renfeng Li
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China.
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Wang Z, Zong H, Liu W, Lin W, Sun A, Ding Z, Chen X, Wan X, Liu Y, Hu Z, Zhang H, Li H, Liu Y, Li D, Zhang S, Zha X. Augmented ERO1α upon mTORC1 activation induces ferroptosis resistance and tumor progression via upregulation of SLC7A11. J Exp Clin Cancer Res 2024; 43:112. [PMID: 38610018 PMCID: PMC11015652 DOI: 10.1186/s13046-024-03039-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Accepted: 04/08/2024] [Indexed: 04/14/2024] Open
Abstract
BACKGROUND The dysregulated mechanistic target of rapamycin complex 1 (mTORC1) signaling plays a critical role in ferroptosis resistance and tumorigenesis. However, the precise underlying mechanisms still need to be fully understood. METHODS Endoplasmic reticulum oxidoreductase 1 alpha (ERO1α) expression in mTORC1-activated mouse embryonic fibroblasts, cancer cells, and laryngeal squamous cell carcinoma (LSCC) clinical samples was examined by quantitative real-time PCR (qRT-PCR), western blotting, immunofluorescence (IF), and immunohistochemistry. Extensive in vitro and in vivo experiments were carried out to determine the role of ERO1α and its downstream target, member 11 of the solute carrier family 7 (SLC7A11), in mTORC1-mediated cell proliferation, angiogenesis, ferroptosis resistance, and tumor growth. The regulatory mechanism of ERO1α on SLC7A11 was investigated via RNA-sequencing, a cytokine array, an enzyme-linked immunosorbent assay, qRT-PCR, western blotting, IF, a luciferase reporter assay, and a chromatin immunoprecipitation assay. The combined therapeutic effect of ERO1α inhibition and the ferroptosis inducer imidazole ketone erastin (IKE) on mTORC1-activated cells was evaluated using cell line-derived xenografts, LSCC organoids, and LSCC patient-derived xenograft models. RESULTS ERO1α is a functional downstream target of mTORC1. Elevated ERO1α induced ferroptosis resistance and exerted pro-oncogenic roles in mTORC1-activated cells via upregulation of SLC7A11. Mechanically, ERO1α stimulated the transcription of SLC7A11 by activating the interleukin-6 (IL-6)/signal transducer and activator of transcription 3 (STAT3) pathway. Moreover, ERO1α inhibition combined with treatment using the ferroptosis inducer IKE exhibited synergistic antitumor effects on mTORC1-activated tumors. CONCLUSIONS The ERO1α/IL-6/STAT3/SLC7A11 pathway is crucial for mTORC1-mediated ferroptosis resistance and tumor growth, and combining ERO1α inhibition with ferroptosis inducers is a novel and effective treatment for mTORC1-related tumors.
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Affiliation(s)
- Zixi Wang
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui Province, China
- Children's Hospital of Fudan University, National Children's Medical Center, And Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
| | - Huaiyuan Zong
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui Province, China
| | - Weiwei Liu
- Department of Otorhinolaryngology, Head & Neck Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Wei Lin
- Department of Stomatology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Anjiang Sun
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui Province, China
| | - Zhao Ding
- Department of Otorhinolaryngology, Head & Neck Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Xu Chen
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui Province, China
| | - Xiaofeng Wan
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, China
| | - Yanyan Liu
- Department of Thyroid and Breast Surgery, Hefei First People's Hospital, Hefei, 230061, China
| | - Zhongdong Hu
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Hongbing Zhang
- State Key Laboratory of Medical Molecular Biology, Department of Physiology, Institute of Basic Medical Sciences and School of Basic Medicine, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Hongwu Li
- Department of Otorhinolaryngology, Head & Neck Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
- Anhui Public Health Clinical Center, Hefei, 230011, China
| | - Yehai Liu
- Department of Otorhinolaryngology, Head & Neck Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Dapeng Li
- Department of Otorhinolaryngology, Head & Neck Surgery, The Affiliated Bozhou Hospital of Anhui Medical University, No. 616 Duzhong Road, Bozhou, 236800, Anhui Province, China.
| | - Sumei Zhang
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui Province, China.
| | - Xiaojun Zha
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui Province, China.
- Department of Otorhinolaryngology, Head & Neck Surgery, The Affiliated Bozhou Hospital of Anhui Medical University, No. 616 Duzhong Road, Bozhou, 236800, Anhui Province, China.
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Bekric D, Kiesslich T, Ocker M, Winklmayr M, Ritter M, Dobias H, Beyreis M, Neureiter D, Mayr C. The efficacy of ferroptosis-inducing compounds IKE and RSL3 correlates with the expression of ferroptotic pathway regulators CD71 and SLC7A11 in biliary tract cancer cells. PLoS One 2024; 19:e0302050. [PMID: 38603713 PMCID: PMC11008848 DOI: 10.1371/journal.pone.0302050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 03/27/2024] [Indexed: 04/13/2024] Open
Abstract
INTRODUCTION Biliary tract cancer (BTC) is a lethal disease with a bad overall survivability, partly arising from inadequate therapeutic alternatives, detection at a belated stage, and a resistance to common therapeutic approaches. Ferroptosis is a form of programmed cell death that depends on reactive oxygen species (ROS) and iron, causing excessive peroxidation of polyunsaturated fatty acids (PUFAs). Therefore, the objective of this investigation is, whether ferroptosis can be induced in BTC in vitro and whether this induction is dependent on specific molecular markers. METHODS The study conducted resazurin assay and IC25/50 calculation to explore the possible cytotoxic outcomes of different classes of ferroptosis-inducing substances (FINs) on a comprehensive in vitro model of 11 BTC cell lines. Combinatory treatments with different cell death inhibitors were performed to evaluate the magnitude of ferroptosis induction. To ascertain whether ferroptotic cell death occurred, liperfluo and iron assay kits were employed to evaluate lipid ROS and intracellular iron abundance. Potential biomarkers of ferroptosis sensitivity were then assessed via western blot analysis, a rtPCR panel and functional assay kits. RESULTS The study found that different FINs reduced cell viability in a cell line-dependent manner. In addition, we measured increased lipid ROS and intracellular Fe2+ levels upon exposure to FINs in BTC cells. Combining FINs with inhibitors of ferroptosis, necroptosis or apoptosis suggests the occurrence of ferroptotic events in BTC cell lines CCC-5, HuH-28 and KKU-055. Furthermore, we found that BTC cells display a heterogeneous profile regarding different molecular genes/markers of ferroptosis. Subsequent analysis revealed that sensitivity of BTC cells towards IKE and RSL3 positively correlated with CD71 and SLC7A11 protein expression. CONCLUSION Our results demonstrate that induction of ferroptosis is a promising approach to inhibit BTC cell growth and that the sensitivity of BTC cells towards ferroptosis induction might be dependent on molecular markers such as CD71 and SLC7A11.
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Affiliation(s)
- Dino Bekric
- Center of Physiology, Pathophysiology and Biophysics, Institute of Physiology and Pathophysiology Salzburg, Paracelsus Medical University, Salzburg, Austria
- Cancer Cluster Salzburg, Salzburg, Austria
| | - Tobias Kiesslich
- Center of Physiology, Pathophysiology and Biophysics, Institute of Physiology and Pathophysiology Salzburg, Paracelsus Medical University, Salzburg, Austria
- Department of Internal Medicine I, University Clinics Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - Matthias Ocker
- Division of Hematology, Oncology, and Cancer Immunology, Medical Department, Charité University Medicine Berlin, Berlin, Germany
- Tacalyx GmbH, Berlin, Germany
| | - Martina Winklmayr
- Ludwig Boltzmann Institute for Arthritis und Rehabilitation, Paracelsus Medical University, Salzburg, Austria
| | - Markus Ritter
- Center of Physiology, Pathophysiology and Biophysics, Institute of Physiology and Pathophysiology Salzburg, Paracelsus Medical University, Salzburg, Austria
- Ludwig Boltzmann Institute for Arthritis und Rehabilitation, Paracelsus Medical University, Salzburg, Austria
- Gastein Research Institute, Paracelsus Medical University, Salzburg, Austria
- Kathmandu Medical School of Medical Sciences, Dhulikhel, Nepal
| | - Heidemarie Dobias
- Center of Physiology, Pathophysiology and Biophysics, Institute of Physiology and Pathophysiology Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - Marlena Beyreis
- Center of Physiology, Pathophysiology and Biophysics, Institute of Physiology and Pathophysiology Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - Daniel Neureiter
- Cancer Cluster Salzburg, Salzburg, Austria
- Institute of Pathology, University Clinics Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - Christian Mayr
- Center of Physiology, Pathophysiology and Biophysics, Institute of Physiology and Pathophysiology Salzburg, Paracelsus Medical University, Salzburg, Austria
- Department of Internal Medicine I, University Clinics Salzburg, Paracelsus Medical University, Salzburg, Austria
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Huang Z, Chen X, Wang Y, Yuan J, Li J, Hang W, Meng H. SLC7A11 inhibits ferroptosis and downregulates PD-L1 levels in lung adenocarcinoma. Front Immunol 2024; 15:1372215. [PMID: 38655266 PMCID: PMC11035808 DOI: 10.3389/fimmu.2024.1372215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 03/27/2024] [Indexed: 04/26/2024] Open
Abstract
Introduction Lung adenocarcinoma (LUAD) is a prevalent form of lung cancer originating from lung glandular cells with low survival rates despite recent therapeutic advances due to its diverse and complex nature. Recent evidence suggests a link between ferroptosis and the effectiveness of anti-PD-L1 therapy, with potential synergistic effects. Methods Our study comprehensively analyzed the expression patterns of ferroptosis regulators in LUAD and their association with prognosis and PD-L1 expression. Furthermore, we identified two distinct subtypes of LUAD through consensus clustering of ferroptosis regulators, revealing significant tumor heterogeneity, divergent PD-L1 expression, and varying prognoses between the subtypes. Results Among the selected ferroptosis regulators, SLC7A11 emerged as an independent prognostic marker for LUAD patients and exhibited a negative correlation with PD-L1 expression. Subsequent investigations revealed high expression of SLC7A11 in the LUAD population. In vitro experiments demonstrated that overexpression of SLC7A11 led to reduced PD-L1 expression and inhibited ferroptosis in A549 cells, underscoring the significant role of SLC7A11 in LUAD. Additionally, pan-cancer analyses indicated an association between SLC7A11 and the expression of immune checkpoint genes across multiple cancer types with poor prognoses. Discussion From a clinical standpoint, these findings offer a foundation for identifying and optimizing potential combination strategies to enhance the therapeutic effectiveness of immune checkpoint inhibitors and improve the prognosis of patients with LUAD.
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Affiliation(s)
- Zhenyao Huang
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
- Key Laboratory of Human Genetics and Environmental Medicine, School of Public Health, Xuzhou Medical University, Xuzhou, China
| | - Xia Chen
- Department of Respiratory Medicine, Xuyi People’s Hospital, Huai’an, Jiangsu, China
| | - Yun Wang
- Department of Dermatology, the Affiliated Huai'an Hospital of Xuzhou Medical University, the Second People's Hospital of Huai’an, Huai’an, China
| | - Jiali Yuan
- Key Laboratory of Human Genetics and Environmental Medicine, School of Public Health, Xuzhou Medical University, Xuzhou, China
| | - Jing Li
- Key Laboratory of Human Genetics and Environmental Medicine, School of Public Health, Xuzhou Medical University, Xuzhou, China
| | - Wenlu Hang
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Hao Meng
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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Ji J, Cheng Z, Zhang J, Wu J, Xu X, Guo C, Feng J. Dihydroartemisinin induces ferroptosis of hepatocellular carcinoma via inhibiting ATF4-xCT pathway. J Cell Mol Med 2024; 28:e18335. [PMID: 38652216 PMCID: PMC11037408 DOI: 10.1111/jcmm.18335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/21/2023] [Accepted: 04/04/2024] [Indexed: 04/25/2024] Open
Abstract
Management of hepatocellular carcinoma (HCC) remains challenging due to population growth, frequent recurrence and drug resistance. Targeting of genes involved with the ferroptosis is a promising alternative treatment strategy for HCC. The present study aimed to investigate the effect of dihydroartemisinin (DHA) against HCC and explore the underlying mechanisms. The effects of DHA on induction of ferroptosis were investigated with the measurement of malondialdehyde concentrations, oxidised C11 BODIPY 581/591 staining, as well as subcutaneous xenograft experiments. Activated transcription factor 4 (ATF4) and solute carrier family 7 member 11 (SLC7A11 or xCT) were overexpressed with lentiviruses to verify the target of DHA. Here, we confirmed the anticancer effect of DHA in inducing ferroptosis is related to ATF4. High expression of ATF4 is related to worse clinicopathological prognosis of HCC. Mechanistically, DHA inhibited the expression of ATF4, thereby promoting lipid peroxidation and ferroptosis of HCC cells. Overexpression of ATF4 rescued DHA-induced ferroptosis. Moreover, ATF4 could directly bound to the SLC7A11 promoter and increase its transcription. In addition, DHA enhances the chemosensitivity of sorafenib on HCC in vivo and in vitro. These findings confirm that DHA induces ferroptosis of HCC via inhibiting ATF4-xCT pathway, thereby providing new drug options for the treatment of HCC.
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Affiliation(s)
- Jie Ji
- Department of GastroenterologyShanghai Tenth People's Hospital, Tongji University School of MedicineShanghaiChina
| | - Ziqi Cheng
- Department of GastroenterologyShanghai Tenth People's Hospital, Tongji University School of MedicineShanghaiChina
| | - Jie Zhang
- Department of GastroenterologyShanghai Tenth People's Hospital, Tongji University School of MedicineShanghaiChina
| | - Jianye Wu
- Department of GastroenterologyPutuo People's Hospital, Tongji UniversityShanghaiChina
| | - Xuanfu Xu
- Department of GastroenterologyShidong Hospital, University of Shanghai for Science and TechnologyShanghaiChina
| | - Chuanyong Guo
- Department of GastroenterologyShanghai Tenth People's Hospital, Tongji University School of MedicineShanghaiChina
| | - Jiao Feng
- Department of GastroenterologyShanghai Tenth People's Hospital, Tongji University School of MedicineShanghaiChina
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9
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Zhang W, Li Q, Zhang Y, Wang Z, Yuan S, Zhang X, Zhao M, Zhuang W, Li B. Multiple myeloma with high expression of SLC7A11 is sensitive to erastin-induced ferroptosis. Apoptosis 2024; 29:412-423. [PMID: 38001343 DOI: 10.1007/s10495-023-01909-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/22/2023] [Indexed: 11/26/2023]
Abstract
Ferroptosis, a nonapoptotic form of cell death marked by iron-dependent peroxidation of phospholipids, is associated with the occurrence and progression of tumors. Erastin, a selective inhibitor of the cystine/glutamate transporter system Xc-, can induce the ferroptosis of cancer cells. Multiple myeloma (MM) has been reported to be insensitive to erastin-induced ferroptosis. However, we found the erastin sensitivity of different MM cells varied widely. Specifically, SLC7A11 abundance determined the sensitivity of MM cells to erastin-induced ferroptosis. MM cells expressing a high SLC7A11 level were more sensitive to erastin-induced ferroptosis than cells expressing a low level of SLC7A11. Moreover, the expression of SLC7A11 gradually increased with the progression of plasma cell dyscrasias. Survival analysis indicated that high levels of SLC7A11 predicted a poor prognosis for MM patients. Knocking down SLC7A11 expression significantly inhibited the proliferation of MM cells and induced ferroptotic cell death. Additionally, we revealed that the long noncoding RNA (lncRNA) SLC7A11-AS1 was a critical regulatory factor of SLC7A11 expression. SLC7A11-AS1 overexpression diminished SLC7A11 levels, leading to the ferroptosis of MM cells. In summary, our data show that heterogeneous SLC7A11 expression affects MM cell sensitivity to ferroptosis, providing a theoretical basis for improving the clinical treatment of MM.
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Affiliation(s)
- Weimin Zhang
- Department of Hematology, The Second Affiliated Hospital of Soochow University, San Xiang Road 1055, Suzhou, 215006, China
| | - Qi Li
- Department of Hematology, The Second Affiliated Hospital of Soochow University, San Xiang Road 1055, Suzhou, 215006, China
| | - Yuchen Zhang
- Department of Hematology, The Second Affiliated Hospital of Soochow University, San Xiang Road 1055, Suzhou, 215006, China
| | - Zhiming Wang
- Department of Cell Biology, School of Biology & Basic Medical Sciences, Suzhou Medical College of Soochow University, Ren Ai Road 199, Suzhou, 215123, China
| | - Shushu Yuan
- Department of Hematology, The Second Affiliated Hospital of Soochow University, San Xiang Road 1055, Suzhou, 215006, China
| | - Xinyun Zhang
- Department of Hematology, The Second Affiliated Hospital of Soochow University, San Xiang Road 1055, Suzhou, 215006, China
| | - Meifang Zhao
- Department of Hematology, The Second Affiliated Hospital of Soochow University, San Xiang Road 1055, Suzhou, 215006, China
| | - Wenzhuo Zhuang
- Department of Cell Biology, School of Biology & Basic Medical Sciences, Suzhou Medical College of Soochow University, Ren Ai Road 199, Suzhou, 215123, China.
| | - Bingzong Li
- Department of Hematology, The Second Affiliated Hospital of Soochow University, San Xiang Road 1055, Suzhou, 215006, China.
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10
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Tang Z, Huang X, Mei H, Zheng Z. Silencing of METTL3 suppressed ferroptosis of myocardial cells by m6A modification of SLC7A11 in a YTHDF2 manner. J Bioenerg Biomembr 2024; 56:149-157. [PMID: 38319402 DOI: 10.1007/s10863-024-10006-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 02/01/2024] [Indexed: 02/07/2024]
Abstract
Myocardial infarction (MI) is the main cause of heart failure (HF). N6-methyladenosine (m6A) methylation is associated with the progression of HF. The study aimed to explore whether METTL3 regulates ferroptosis of cardiomyocytes in HF. We evaluated ferroptosis by detecting lactic dehydrogenase (LDH) release, lipid reactive oxygen species (ROS), Fe2+, glutathione (GSH), and malonaldehyde (MDA) levels. M6A methylation was assessed using methylated RNA immunoprecipitation assay. The binding relationship was assessed using RNA immunoprecipitation assays. The mRNA stability was assessed using actinomycin D treatment. The results showed that METTL3 was upregulated in oxygen glucose deprivation/recovery (OGD/R) cells, which knockdown suppressed OGD/R-induced ferroptosis. Moreover, METTL3 could bind to SLC7A11, promoting m6A methylation of SLC7A11. Silencing of SLC7A11 abrogated the suppression of ferroptosis induced by METTL3 knockdown. Additionally, YTHDF2 was the reader that recognized the methylation of SLC7A11, reducing the stability of SLC7A11. The silencing of METTL3 inhibited OGD/R-induced ferroptosis by suppressing the m6A methylation of SLC7A11, which is recognized by YTHDF2. The findings suggested that METTL3-mediated ferroptosis might be a new strategy for MI-induced HF therapy.
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Affiliation(s)
- Zengyao Tang
- Department of Cardiology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, No.17, Yongwaizheng Street, Donghu District, Nanchang City, Jiangxi Province, 330000, China
- The First People's Hospital of Jiujiang, Jiujiang, Jiangxi Province, China
| | - Xin Huang
- Department of Cardiology, The First Hospital of Nanchang, Nanchang City, Jiangxi Province, 330000, China
| | - Hanying Mei
- Department of Rheumatology Immunology, The First People's Hospital of Jiujiang, Jiujiang, Jiangxi Province, China
| | - Zeqi Zheng
- Department of Cardiology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, No.17, Yongwaizheng Street, Donghu District, Nanchang City, Jiangxi Province, 330000, China.
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11
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Du Y, Zhou Y, Yan X, Pan F, He L, Guo Z, Hu Z. APE1 inhibition enhances ferroptotic cell death and contributes to hepatocellular carcinoma therapy. Cell Death Differ 2024; 31:431-446. [PMID: 38418695 PMCID: PMC11043431 DOI: 10.1038/s41418-024-01270-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 02/11/2024] [Accepted: 02/12/2024] [Indexed: 03/02/2024] Open
Abstract
Ferroptosis, a regulated form of cell death triggered by iron-dependent lipid peroxidation, has emerged as a promising therapeutic strategy for cancer treatment, particularly in hepatocellular carcinoma (HCC). However, the mechanisms underlying the regulation of ferroptosis in HCC remain to be unclear. In this study, we have identified a novel regulatory pathway of ferroptosis involving the inhibition of Apurinic/apyrimidinic endonuclease 1 (APE1), a key enzyme with dual functions in DNA repair and redox regulation. Our findings demonstrate that inhibition of APE1 leads to the accumulation of lipid peroxidation and enhances ferroptosis in HCC. At the molecular level, the inhibition of APE1 enhances ferroptosis which relies on the redox activity of APE1 through the regulation of the NRF2/SLC7A11/GPX4 axis. We have identified that both genetic and chemical inhibition of APE1 increases AKT oxidation, resulting in an impairment of AKT phosphorylation and activation, which leads to the dephosphorylation and activation of GSK3β, facilitating the subsequent ubiquitin-proteasome-dependent degradation of NRF2. Consequently, the downregulation of NRF2 suppresses SLC7A11 and GPX4 expression, triggering ferroptosis in HCC cells and providing a potential therapeutic approach for ferroptosis-based therapy in HCC. Overall, our study uncovers a novel role and mechanism of APE1 in the regulation of ferroptosis and highlights the potential of targeting APE1 as a promising therapeutic strategy for HCC and other cancers.
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Affiliation(s)
- Yu Du
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China
| | - Yu Zhou
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China
| | - Xinyu Yan
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China
| | - Feiyan Pan
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China
| | - Lingfeng He
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China
| | - Zhigang Guo
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China.
| | - Zhigang Hu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China.
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12
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Riegel G, Orvain C, Recberlik S, Spaety ME, Poschet G, Venkatasamy A, Yamamoto M, Nomura S, Tsukamoto T, Masson M, Gross I, Le Lagadec R, Mellitzer G, Gaiddon C. The unfolded protein response-glutathione metabolism axis: A novel target of a cycloruthenated complexes bypassing tumor resistance mechanisms. Cancer Lett 2024; 585:216671. [PMID: 38290658 DOI: 10.1016/j.canlet.2024.216671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/22/2023] [Accepted: 01/20/2024] [Indexed: 02/01/2024]
Abstract
Platinum-based drugs remain the reference treatment for gastric cancer (GC). However, the frequency of resistance, due to mutations in TP53 or alterations in the energy and redox metabolisms, impairs the efficacy of current treatments, highlighting the need for alternative therapeutic options. Here, we show that a cycloruthenated compound targeting the redox metabolism, RDC11, induces higher cytotoxicity than oxaliplatin in GC cells and is more potent in reducing tumor growth in vivo. Detailed investigations into the mode of action of RDC11 indicated that it targets the glutathione (GSH) metabolism, which is an important drug resistance mechanism. We demonstrate that cycloruthenated complexes regulate the expression of enzymes of the transsulfuration pathway via the Unfolded Protein Response (UPR) and its effector ATF4. Furthermore, RDC11 induces the expression of SLC7A11 encoding for the cystine/glutamate antiporter xCT. These effects lead to a lower cellular GSH content and elevated oxygen reactive species production, causing the activation of a caspase-independent apoptosis. Altogether, this study provides the first evidence that cycloruthenated complexes target the GSH metabolism, neutralizing thereby a major resistance mechanism towards platinum-based chemotherapies and anticancer immune response.
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Affiliation(s)
- Gilles Riegel
- University of Strasbourg, INSERM UMR_S 1113, "Streinth" Laboratory, Strasbourg, France
| | - Christophe Orvain
- University of Strasbourg, INSERM UMR_S 1113, "Streinth" Laboratory, Strasbourg, France; INSERM, UMR 1260, CRBS, Regenerative Nanomedicine, "HERIIT" Laboratory, University of Strasbourg, Strasbourg, France
| | - Sevda Recberlik
- University of Strasbourg, INSERM UMR_S 1113, "Streinth" Laboratory, Strasbourg, France; INSERM, UMR 1260, CRBS, Regenerative Nanomedicine, "HERIIT" Laboratory, University of Strasbourg, Strasbourg, France
| | - Marie-Elodie Spaety
- University of Strasbourg, INSERM UMR_S 1113, "Streinth" Laboratory, Strasbourg, France
| | - Gernot Poschet
- Centre for Organismal Studies (COS), University of Heidelberg, Heidelberg, Germany
| | - Aina Venkatasamy
- University of Strasbourg, INSERM UMR_S 1113, "Streinth" Laboratory, Strasbourg, France; IHU-Strasbourg, Institute of Image-Guided Surgery, Strasbourg, France
| | - Masami Yamamoto
- Department of Laboratory of Physiological Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Sachiyo Nomura
- Department of Gastrointestinal Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tetsyua Tsukamoto
- Department of Diagnostic Pathology, Graduate School of Medicine, Fujita Health University, Toyoake, Japan
| | - Murielle Masson
- University of Strasbourg, INSERM UMR_S 1113, "Streinth" Laboratory, Strasbourg, France; University of Strasbourg, CNRS BSC-UMR 7242, Ecole Supérieure de Biotechnologie, Illkirch, France
| | - Isabelle Gross
- University of Strasbourg, INSERM UMR_S 1113, "SMART" Laboratory, Strasbourg, France; INSERM, UMR 1260, CRBS, Regenerative Nanomedicine, "HERIIT" Laboratory, University of Strasbourg, Strasbourg, France
| | - Ronan Le Lagadec
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, 04510, Ciudad de México, Mexico
| | - Georg Mellitzer
- University of Strasbourg, INSERM UMR_S 1113, "Streinth" Laboratory, Strasbourg, France; INSERM, UMR 1260, CRBS, Regenerative Nanomedicine, "HERIIT" Laboratory, University of Strasbourg, Strasbourg, France.
| | - Christian Gaiddon
- University of Strasbourg, INSERM UMR_S 1113, "Streinth" Laboratory, Strasbourg, France.
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13
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Chen Q, Zhang T, Zeng R, Zhang K, Li B, Zhu Z, Ma X, Zhang Y, Li L, Zhu J, Zhang G. The E3 ligase TRIM7 suppresses the tumorigenesis of gastric cancer by targeting SLC7A11. Sci Rep 2024; 14:6655. [PMID: 38509147 PMCID: PMC10954695 DOI: 10.1038/s41598-024-56746-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 03/11/2024] [Indexed: 03/22/2024] Open
Abstract
Tripartite motif-containing protein 7 (TRIM7), as an E3 ligase, plays an important regulatory role in various physiological and pathological processes. However, the role of TRIM7 in gastric cancer (GC) is still undefined. Our study detected the expression of TRIM7 in clinical specimens and investigated the regulatory effect and molecular mechanism of TRIM7 on GC progression through in vitro and in vivo experiments. Our finding showed that TRIM7 was significantly downregulated in GC, and patients with high expression of TRIM7 showed long overall survival. Both in vitro and in vivo experiments showed that TRIM7 dramatically suppressed the malignant progression of GC. Further investigation showed that ferroptosis was the major death type mediated by TRIM7. Mechanistically, TRIM7 interacted with SLC7A11 through its B30.2/SPRY domain and promoted Lys48-linked polyubiquitination of SLC7A11, which effectively suppressing SLC7A11/GPX4 axis and inducing ferroptosis in GC cells. In vivo experiments and correlation analysis based on clinical specimens further confirmed that TRIM7 inhibited tumor growth through suppressing SLC7A11/GPX4 axis. In conclusion, our investigation demonstrated for the first time that TRIM7, as a tumor suppressor, induced ferroptosis via targeting SLC7A11 in GC, which provided a new strategy for the molecular therapy of GC by upregulating TRIM7.
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Affiliation(s)
- Qishuai Chen
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, No.16766 Jingshi Road, Jinan, 250014, Shandong Province, People's Republic of China
| | - Tongtong Zhang
- Department of Laboratory Medical, Zibo Central Hospital, Zibo, 255000, Shandong Province, People's Republic of China
| | - Runzhi Zeng
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, No.16766 Jingshi Road, Jinan, 250014, Shandong Province, People's Republic of China
| | - Kunmiao Zhang
- Department of General Surgery, Liaocheng People's Hospital, Liaocheng, 252000, Shandong Province, People's Republic of China
| | - Bingjun Li
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, No.16766 Jingshi Road, Jinan, 250014, Shandong Province, People's Republic of China
| | - Zhenguo Zhu
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, No.16766 Jingshi Road, Jinan, 250014, Shandong Province, People's Republic of China
| | - Xiaomin Ma
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, No.16766 Jingshi Road, Jinan, 250014, Shandong Province, People's Republic of China
| | - Yun Zhang
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, No.16766 Jingshi Road, Jinan, 250014, Shandong Province, People's Republic of China
| | - Linchuan Li
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, No.16766 Jingshi Road, Jinan, 250014, Shandong Province, People's Republic of China
| | - Jiankang Zhu
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, No.16766 Jingshi Road, Jinan, 250014, Shandong Province, People's Republic of China
| | - Guangyong Zhang
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, No.16766 Jingshi Road, Jinan, 250014, Shandong Province, People's Republic of China.
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Yamaguchi I, Katoh H. Merlin/NF2 regulates SLC7A11/xCT expression and cell viability under glucose deprivation at high cell density in glioblastoma cells. J Biochem 2024; 175:313-322. [PMID: 38102738 DOI: 10.1093/jb/mvad105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/07/2023] [Accepted: 11/27/2023] [Indexed: 12/17/2023] Open
Abstract
The cystine/glutamate transporter SLC7A11/xCT is highly expressed in many cancer cells and plays an important role in antioxidant activity by supplying cysteine for glutathione synthesis. Under glucose-depleted conditions, however, SLC7A11-mediated cystine uptake causes oxidative stress and cell death called disulfidptosis, a new form of cell death. We previously reported that high cell density (HD) promotes lysosomal degradation of SLC7A11 in glioblastoma cells, allowing them to survive under glucose-depleted conditions. In this study, we found that the neurofibromatosis type 2 gene, Merlin/NF2 is a key regulator of SLC7A11 in glioblastoma cells at HD. Deletion of Merlin increased SLC7A11 protein level and cystine uptake at HD, leading to promotion of cell death under glucose deprivation. Furthermore, HD significantly decreased SLC7A11 mRNA level, which was restored by Merlin deletion. This study suggests that Merlin suppresses glucose deprivation-induced cell death by downregulating SLC7A11 expression in glioblastoma cells at HD.
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Affiliation(s)
- Itsuki Yamaguchi
- Laboratory of Molecular Neurobiology, Graduate School of Biostudies, Kyoto University, Yoshidakonoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
- Department of Biological Chemistry, Graduate School of Science, Osaka Metropolitan University, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Hironori Katoh
- Department of Biological Chemistry, Graduate School of Science, Osaka Metropolitan University, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
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15
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Wang Z, Wang Y, Shen N, Liu Y, Xu X, Zhu R, Jiang H, Wu X, Wei Y, Tang J. AMPKα1-mediated ZDHHC8 phosphorylation promotes the palmitoylation of SLC7A11 to facilitate ferroptosis resistance in glioblastoma. Cancer Lett 2024; 584:216619. [PMID: 38211651 DOI: 10.1016/j.canlet.2024.216619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/20/2023] [Accepted: 12/26/2023] [Indexed: 01/13/2024]
Abstract
The cystine/glutamate antiporter SLC7A11, as the key regulator of ferroptosis, functions to transport cystine for glutathione biosynthesis and antioxidant defense. Accumulating evidence has shown that SLC7A11 is overexpressed in multiple human cancers and promotes tumor growth and progression. However, the exact mechanism underlying this key protein remains unclear. In this study, we confirmed that SLC7A11 is S-palmitoylated in glioblastoma, and this modification is required for SLC7A11 protein stability. Moreover, we revealed that ZDHHC8, a member of the protein palmitoyl transferases (PATs), catalyzes S-palmitoylation of SLC7A11 at Cys327, thereby decreasing the ubiquitination level of SLC7A11. Furthermore, AMPKα1 directly phosphorylates ZDHHC8 at S299, strengthening the interaction between ZDHHC8 and SLC7A11, leading to SLC7A11 S-palmitoylation and deubiquitination. Functional investigations showed that ZDHHC8 knockdown impairs glioblastoma (GBM) cell survival via promoting intracellular ferroptosis events, which could be largely rescued by ectopic expression of SLC7A11. Clinically, ZDHHC8 expression positively correlates with SLC7A11 and AMPKα1 expression in clinical glioma specimens. This study underscores that ZDHHC8-mediated SLC7A11 S-palmitoylation is critical for ferroptosis resistance during GBM tumorigenesis, indicating a novel treatment strategy for GBM.
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Affiliation(s)
- Zhangjie Wang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
| | - Yang Wang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Na Shen
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Yu Liu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Xinyang Xu
- Department of Cardiac Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Ruiqiu Zhu
- Department of Radiotherapy and Oncology, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Hao Jiang
- Department of Urology, The First Affiliated Hospital of Soochow University, No.899 Ping Hai Road, Suzhou 215000, China
| | - Xiaoting Wu
- Department of Intensive Care Unit, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210029, China
| | - Yunfei Wei
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China; Department of Urology, Traditional Chinese Medicine Hospital of Ili Kazak Autonomous Prefecture, Yining 835000, China.
| | - Jingyuan Tang
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China.
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16
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Li R, Li S, Shen L, Li J, Zhang D, Yu J, Huang L, Liu N, Lu H, Xu M. SNHG1, interacting with SND1, contributes to sorafenib resistance of liver cancer cells by increasing m6A-mediated SLC7A11 expression and promoting aerobic glycolysis. Environ Toxicol 2024; 39:1269-1282. [PMID: 37927237 DOI: 10.1002/tox.24014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/20/2023] [Accepted: 10/07/2023] [Indexed: 11/07/2023]
Abstract
Aerobic glycolysis plays an important role in multidrug resistance of cancer cells. Here, we screened different expressed lncRNAs associated with sorafenib resistance of liver cancer cells, by intersecting the bioinformatics analyses of TCGA and GEO (the GSE62813 dataset) databases. Our results revealed that the 18 upregulated lncRNAs in the intersection are associated with and enriched in metabolism of small molecule organic acids, suggesting their potential in glycolysis. The lncRNA small nucleolar RNA host gene 1 (Snhg1) was chosen as a potential regulator of aerobic glycolysis in liver cancer cells, for its significant promotion on lactate production. Gain- and loss-of-function experiments mediated by Crispr-Cas9 technique in HepG2 cells indicated that Snhg1 promoted cell proliferation, invasion, sorafenib resistance, and aerobic glycolysis. In the mechanism exploration, we found that Snhg1 can interact with SND1 protein, a famous RNA binding protein and recently identified "Reader" of N6-methyladenosine (m6A). SND1 was demonstrated to be positively regulated by Snhg1 and had similar promoting effects on proliferation, invasion, sorafenib resistance, and aerobic glycolysis of HepG2 cells. SND1 bound with and promoted the expression of SLC7A11, an aerobic glycolysis regulator. Furthermore, either silencing SLC7A11 or blocking aerobic glycolysis with 2-deoxy-d-glucose (2-DG) was able to reverse the promotion of Snhg1 overexpression on malignancy, sorafenib resistance, and aerobic glycolysis of HepG2 cells. Finally, in a liver cancer xenograft mouse model, we found that formed tumors with Snhg1-knocked-down HepG2 cells were more sensitive to sorafenib administration. Altogether, SNHG1 contributes to sorafenib resistance of liver cancer cells by promoting SND1-m6A-SLC7A11-mediated aerobic glycolysis.
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Affiliation(s)
- Rong Li
- Department of Anesthesiology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Shunle Li
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Lin Shen
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Junhui Li
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Di Zhang
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Jinmin Yu
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Lanxuan Huang
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China
| | - Na Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Hongwei Lu
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Meng Xu
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, People's Republic of China
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Han Y, Fu L, Kong Y, Jiang C, Huang L, Zhang H. STEAP3 Affects Ovarian Cancer Progression by Regulating Ferroptosis through the p53/SLC7A11 Pathway. Mediators Inflamm 2024; 2024:4048527. [PMID: 38440354 PMCID: PMC10911874 DOI: 10.1155/2024/4048527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/14/2024] [Accepted: 02/03/2024] [Indexed: 03/06/2024] Open
Abstract
Ovarian cancer (OC) is a common malignant cancer in women with a low overall survival rate, and ferroptosis may be a potential new strategy for treatment. Six-transmembrane epithelial antigen of prostate 3 (STEAP3) is a gene closely related to ferroptosis, yet the role of STEAP3 in OC has not yet been thoroughly investigated. Using biological information analysis, we first found that STEAP3 was highly expressed in OC, which was significantly associated with poor prognosis of patients and was an independent prognostic factor. Through cloning, scratch, and transwell experiments, we subsequently found that knockdown of STEAP3 significantly reduced the proliferation and migration ability of OC cells. Furthermore, we found that knockdown of STEAP3 induced ferroptosis in OC cells by detecting ferroptosis indicators. Mechanistically, we also found that knockdown of STEAP3 induced ferroptosis through the p53/SLC7A11 signaling pathway. Through tumorigenic experiments in nude mice, we finally verified that the knockdown of STEAP3 could inhibit tumor growth in vivo by promoting ferroptosis through the p53 pathway. Overall, our study identified a novel therapeutic target for ferroptosis in OC and explored its specific mechanism of action.
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Affiliation(s)
- Yi Han
- Department of Gynecology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Lei Fu
- Department of Gynecology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Yan Kong
- Department of Gynecology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Changqing Jiang
- Department of Gynecology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Liying Huang
- Department of Gynecology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Hualing Zhang
- Department of Gynecology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
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18
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Li X, Zhang W, Xing Z, Hu S, Zhang G, Wang T, Wang T, Fan Q, Chen G, Cheng J, Jiang X, Cai R. Targeting SIRT3 sensitizes glioblastoma to ferroptosis by promoting mitophagy and inhibiting SLC7A11. Cell Death Dis 2024; 15:168. [PMID: 38395990 PMCID: PMC10891132 DOI: 10.1038/s41419-024-06558-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 02/08/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024]
Abstract
Glioblastoma (GBM) cells require large amounts of iron for tumor growth and progression, which makes these cells vulnerable to destruction via ferroptosis induction. Mitochondria are critical for iron metabolism and ferroptosis. Sirtuin-3 (SIRT3) is a deacetylase found in mitochondria that regulates mitochondrial quality and function. This study aimed to characterize SIRT3 expression and activity in GBM and investigate the potential therapeutic effects of targeting SIRT3 while also inducing ferroptosis in these cells. We first found that SIRT3 expression was higher in GBM tissues than in normal brain tissues and that SIRT3 protein expression was upregulated during RAS-selective lethal 3 (RSL3)-induced GBM cell ferroptosis. We then observed that inhibition of SIRT3 expression and activity in GBM cells sensitized GBM cells to RSL3-induced ferroptosis both in vitro and in vivo. Mechanistically, SIRT3 inhibition led to ferrous iron and ROS accumulation in the mitochondria, which triggered mitophagy. RNA-Sequencing analysis revealed that upon SIRT3 knockdown in GBM cells, the mitophagy pathway was upregulated and SLC7A11, a critical antagonist of ferroptosis via cellular import of cystine for glutathione (GSH) synthesis, was downregulated. Forced expression of SLC7A11 in GBM cells with SIRT3 knockdown restored cellular cystine uptake and consequently the cellular GSH level, thereby partially rescuing cell viability upon RSL3 treatment. Furthermore, in GBM cells, SIRT3 regulated SLC7A11 transcription through ATF4. Overall, our study results elucidated novel mechanisms underlying the ability of SIRT3 to protect GBM from ferroptosis and provided insight into a potential combinatorial approach of targeting SIRT3 and inducing ferroptosis for GBM treatment.
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Affiliation(s)
- Xiaohe Li
- Department of Biochemistry & Molecular Cell Biology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Shanghai Immune Therapy Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Wenlong Zhang
- Department of Biochemistry & Molecular Cell Biology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Zhengcao Xing
- Department of Biochemistry & Molecular Cell Biology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Shuming Hu
- Department of Biochemistry & Molecular Cell Biology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Geqiang Zhang
- Department of Biochemistry & Molecular Cell Biology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Tiange Wang
- Department of Biochemistry & Molecular Cell Biology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Tianshi Wang
- Department of Biochemistry & Molecular Cell Biology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Qiuju Fan
- Department of Biochemistry & Molecular Cell Biology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Guoqiang Chen
- State Key Laboratory of Oncogenes and Related Genes, Renji Hospital Affiliated, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Department of Biochemistry & Molecular Cell Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Jinke Cheng
- State Key Laboratory of Oncogenes and Related Genes, Renji Hospital Affiliated, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Department of Biochemistry & Molecular Cell Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Xianguo Jiang
- Department of Neurology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Rong Cai
- Department of Biochemistry & Molecular Cell Biology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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19
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Xu W, Wei D, Song X. Identification of SLC40A1, LCN2, CREB5, and SLC7A11 as ferroptosis-related biomarkers in alopecia areata through machine learning. Sci Rep 2024; 14:3800. [PMID: 38360836 PMCID: PMC10869692 DOI: 10.1038/s41598-024-54278-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 02/10/2024] [Indexed: 02/17/2024] Open
Abstract
Alopecia areata (AA) is a common non-scarring hair loss condition driven by the collapse of immune privilege and oxidative stress. The role of ferroptosis, a type of cell death linked to oxidative stress, in AA is yet to be explored, even though it's implicated in various diseases. Using transcriptome data from AA patients and controls from datasets GSE68801 and GSE80342, we aimed to identify AA diagnostic marker genes linked to ferroptosis. We employed Single-sample gene set enrichment analysis (ssGSEA) for immune cell infiltration evaluation. Correlations between ferroptosis-related differentially expressed genes (FRDEGs) and immune cells/functions were identified using Spearman analysis. Feature selection was done through Support vector machine-recursive feature elimination (SVM-RFE) and LASSO regression models. Validation was performed using the GSE80342 dataset, followed by hierarchical internal validation. We also constructed a nomogram to assess the predictive ability of FRDEGs in AA. Furthermore, the expression and distribution of these molecules were confirmed through immunofluorescence. Four genes, namely SLC40A1, LCN2, CREB5, and SLC7A11, were identified as markers for AA. A prediction model based on these genes showed high accuracy (AUC = 0.9052). Immunofluorescence revealed reduced expression of these molecules in AA patients compared to normal controls (NC), with SLC40A1 and CREB5 showing significant differences. Notably, they were primarily localized to the outer root sheath and in proximity to the sebaceous glands. Our study identified several ferroptosis-related genes associated with AA. These findings, emerging from the integration of immune cell infiltration analysis and machine learning, contribute to the evolving understanding of diagnostic and therapeutic strategies in AA. Importantly, this research lays a solid foundation for subsequent studies exploring the intricate relationship between AA and ferroptosis.
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Affiliation(s)
- Wen Xu
- School of Medicine, Zhejiang University, Hangzhou, 310009, China
- Department of Dermatology, Hangzhou Third People's Hospital, Affiliated Hangzhou Dermatology Hospital, Zhejiang University School of Medicine, West Lake Ave 38, Hangzhou, 310009, China
| | - Dongfan Wei
- School of Medicine, Zhejiang University, Hangzhou, 310009, China
- Department of Dermatology, Hangzhou Third People's Hospital, Affiliated Hangzhou Dermatology Hospital, Zhejiang University School of Medicine, West Lake Ave 38, Hangzhou, 310009, China
| | - Xiuzu Song
- Department of Dermatology, Hangzhou Third People's Hospital, Affiliated Hangzhou Dermatology Hospital, Zhejiang University School of Medicine, West Lake Ave 38, Hangzhou, 310009, China.
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20
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Bi R, Hu R, Jiang L, Wen B, Jiang Z, Liu H, Mei J. Butyrate enhances erastin-induced ferroptosis of lung cancer cells via modulating the ATF3/SLC7A11 pathway. Environ Toxicol 2024; 39:529-538. [PMID: 37341073 DOI: 10.1002/tox.23857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/13/2023] [Accepted: 05/28/2023] [Indexed: 06/22/2023]
Abstract
Ferroptosis is a novel form of programmed cell death triggered by iron-dependent lipid peroxidation and has been associated with various diseases, including cancer. Erastin, an inhibitor of system Xc-, which plays a critical role in regulating ferroptosis, has been identified as an inducer of ferroptosis in cancer cells. In this study, we investigated the impact of butyrate, a short-chain fatty acid produced by gut microbiota, on erastin-induced ferroptosis in lung cancer cells. Our results demonstrated that butyrate significantly enhanced erastin-induced ferroptosis in lung cancer cells, as evidenced by increased lipid peroxidation and reduced expression of glutathione peroxidase 4 (GPX4). Mechanistically, we found that butyrate modulated the pathway involving activating transcription factor 3 (ATF3) and solute carrier family 7 member 11 (SLC7A11), leading to enhanced erastin-induced ferroptosis. Furthermore, partial reversal of the effect of butyrate on ferroptosis was observed upon knockdown of ATF3 or SLC7A11. Collectively, our findings indicate that butyrate enhances erastin-induced ferroptosis in lung cancer cells by modulating the ATF3/SLC7A11 pathway, suggesting its potential as a therapeutic agent for cancer treatment.
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Affiliation(s)
- Rui Bi
- Department of Cardiothoracic Surgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rui Hu
- Department of Cardiothoracic Surgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lianyong Jiang
- Department of Cardiothoracic Surgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bohan Wen
- Department of Cardiothoracic Surgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhaolei Jiang
- Department of Cardiothoracic Surgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hongtao Liu
- Department of Cardiothoracic Surgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ju Mei
- Department of Cardiothoracic Surgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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21
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Chen SJ, Zhang J, Zhou T, Rao SS, Li Q, Xiao LY, Wei ST, Zhang HF. Epigenetically upregulated NSUN2 confers ferroptosis resistance in endometrial cancer via m 5C modification of SLC7A11 mRNA. Redox Biol 2024; 69:102975. [PMID: 38042059 PMCID: PMC10711489 DOI: 10.1016/j.redox.2023.102975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 11/22/2023] [Accepted: 11/24/2023] [Indexed: 12/04/2023] Open
Abstract
Endometrial cancer (EC) is a prevalent gynecological malignancy worldwide, and 5-methylcytosine (m5C) modification of mRNA is a crucial epigenetic modification associated with the development and occurrence of several cancers. However, the precise function of m5C modification in EC remains elusive. This study aimed to investigate the expression and clinical significance of the primary m5C modification writer, NSUN2, in EC. Our findings indicated that NSUN2 exhibited a substantial up-regulation in EC as a result of an epigenetic augmentation in H3K4me3 levels within the promoter region, which was triggered by the down-regulation of KDM5A. Moreover, gain- and loss-of-function experiments revealed the role of NSUN2 in enhancing m5C modification of mRNA, thereby promoting EC cell proliferation. RNA bisulfite sequencing and transcriptomic sequencing were employed to elucidate the involvement of NSUN2 in the regulation of ferroptosis. Subsequent in vitro experiments confirmed that the knockdown of NSUN2 significantly up-regulated the levels of lipid peroxides and lipid ROS in EC cells, thereby augmenting the susceptibility of EC to ferroptosis. Mechanistically, NSUN2 stimulated the m5C modification of SLC7A11 mRNA, and the m5C reader YBX1 exhibited direct recognition and binding to the m5C sites on SLC7A11 mRNA via its internal cold shock domain (CSD), leading to an increase in SLC7A11 mRNA stability and elevated levels of SLC7A11. Additionally, rescue experiments showed that NSUN2 functioned as a suppressor of ferroptosis, which was dependent on SLC7A11. Overall, targeting the NSUN2/SLC7A11 axis inhibited tumor growth by increasing lipid peroxidation and ferroptosis of EC cells both in vitro and in vivo. Therefore, our study provides new insight into the role of NSUN2, suggesting that NSUN2 may serve as a prognostic biomarker and therapeutic target in patients with EC.
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Affiliation(s)
- Shuai-Jun Chen
- Department of Pathology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Jun Zhang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ting Zhou
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Shan-Shan Rao
- Department of Pathology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Qian Li
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Ling-Yan Xiao
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Si-Tian Wei
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Hong-Feng Zhang
- Department of Pathology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China.
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22
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Li J, Li PT, Wu W, Ding BN, Wen YG, Cai HL, Liu SX, Hong T, Zhang JF, Zhou JD, Qian LY, Du J. POU2F2-mediated upregulation of lncRNA PTPRG-AS1 inhibits ferroptosis in breast cancer via miR-376c-3p/SLC7A11 axis. Epigenomics 2024; 16:215-231. [PMID: 38318853 DOI: 10.2217/epi-2023-0100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024] Open
Abstract
Background: Triple-negative breast cancer (TNBC) is a subtype of BC with high rates of mortality. The mechanism of PTPRG-AS1 in ferroptosis of TNBC was investigated. Methods: Chromatin immunoprecipitation and dual-luciferase reporter assays were used to measure intermolecular relationships. MTT and colony formation assays detected cell viability and proliferation. Kits detected Fe2+ and reactive oxygen species levels. The role of PTPRG-AS1 in tumor growth was analyzed in vivo. Results: PTPRG-AS1 was increased in TNBC tissues and cells. PTPRG-AS1 silencing increased the reduction of glutathione and GPX4, increased Fe2+ and reactive oxygen species in erastin-treated cells and inhibited proliferation. POU2F2 transcriptionally upregulated PTPRG-AS1. PTPRG-AS1 targeted miR-376c-3p to upregulate SLC7A11. PTPRG-AS1 knockdown suppressed tumor growth in vivo. Conclusion: POU2F2 transcriptionally activates PTPRG-AS1 to modulate ferroptosis and proliferation by miR-376c-3p/SLC7A11, promoting TNBC.
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Affiliation(s)
- Jun Li
- Department of Breast & Thyroid Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, China
| | - Pei-Ting Li
- Department of Breast & Thyroid Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, China
| | - Wei Wu
- Department of Breast & Thyroid Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, China
| | - Bo-Ni Ding
- Department of Breast & Thyroid Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, China
| | - Yan-Guang Wen
- Department of Breast & Thyroid Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, China
| | - Hai-Lin Cai
- Department of Breast & Thyroid Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, China
| | - Shuang-Xi Liu
- Department of Breast & Thyroid Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, China
| | - Tao Hong
- Department of Breast & Thyroid Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330008, Jiangxi Province, China
| | - Jian-Fei Zhang
- Department of Plastic Surgery, The Second Affiliated Hospital of the University of South China, Hengyang, 421000, Hunan Province, China
| | - Jian-Da Zhou
- Department of Plastic Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, China
| | - Li-Yuan Qian
- Department of Breast & Thyroid Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, China
| | - Juan Du
- Department of Breast & Thyroid Surgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, China
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Wang J, Jia Q, Jiang S, Lu W, Ning H. POU6F1 promotes ferroptosis by increasing lncRNA-CASC2 transcription to regulate SOCS2/SLC7A11 signaling in gastric cancer. Cell Biol Toxicol 2024; 40:3. [PMID: 38267746 PMCID: PMC10808632 DOI: 10.1007/s10565-024-09843-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 11/22/2023] [Indexed: 01/26/2024]
Abstract
OBJECTIVE This study investigated the effect and mechanism of POU6F1 and lncRNA-CASC2 on ferroptosis of gastric cancer (GC) cells. METHODS GC cells treated with erastin and RSL3 were detected for ferroptosis, reactive oxygen species (ROS) level, and cell viability. The expression levels of POU6F1, lncRNA-CASC2, SOCS2, and ferroptosis-related molecules (GPX4 and SLC7A11) were also measured. The regulations among POU6F1, lncRNA-CASC2, FMR1, SOCS2, and SLC7A11 were determined. Subcutaneous tumor models were established, in which the expressions of Ki-67, SOCS2, and GPX4 were detected by immunohistochemistry. RESULTS GC patients with decreased expressions of POU6F1 and lncRNA-CASC2 had lower survival rate. Overexpression of POU6F1 or lncRNA-CASC2 decreased cell proliferation and GSH levels in GC cells, in addition to increasing total iron, Fe2+, MDA, and ROS levels. POU6F1 directly binds to the lncRNA-CASC2 promoter to promote its transcription. LncRNA-CASC2 can target FMR1 and increase SOCS2 mRNA stability to promote SLC7A11 ubiquitination degradation and activate ferroptosis signaling. Knockdown of SOCS2 inhibited the ferroptosis sensitivity of GC cells and reversed the effects of POU6F1 and lncRNA-CASC2 overexpression on ferroptosis in GC cells. CONCLUSION Transcription factor POU6F1 binds directly to the lncRNA-CASC2 promoter to promote its expression, while upregulated lncRNA-CASC2 increases SOCS2 stability and expression by targeting FMR1, thereby inhibiting SLC7A11 signaling to promote ferroptosis in GC cells and inhibit GC progression.
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Affiliation(s)
- Jingyun Wang
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi District, Zhengzhou, Henan, 450000, People's Republic of China
| | - Qiaoyu Jia
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi District, Zhengzhou, Henan, 450000, People's Republic of China
| | - Shuqin Jiang
- Department of Child Development and Behavior, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450000, People's Republic of China
| | - Wenquan Lu
- Department of Gastroenterology, The Second Affiliated Hospital of Zhengzhou University, No.2 JingBa Road, Jinshui District, Zhengzhou, Henan, 450014, People's Republic of China
| | - Hanbing Ning
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi District, Zhengzhou, Henan, 450000, People's Republic of China.
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24
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Zhu C, Chen B, He X, Li W, Wang S, Zhu X, Li Y, Wan P, Li X. LncRNA MEG3 suppresses erastin-induced ferroptosis of chondrocytes via regulating miR-885-5p/SLC7A11 axis. Mol Biol Rep 2024; 51:139. [PMID: 38236340 DOI: 10.1007/s11033-023-09095-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 12/01/2023] [Indexed: 01/19/2024]
Abstract
BACKGROUND Ferroptosis is involved in osteoarthritis development; however, the roles of long noncoding RNAs (lncRNAs), including lncRNA MEG3, in the regulation of ferroptosis in osteoarthritis are still unclear. METHODS In this study, qRT‒PCR and Western blotting assays were used to detect the expression of lncRNA MEG3, miR-885-5p, SLC7A11 and GPX4; MDA and CCK-8 assays were applied to analyse cellular MDA levels and cell viability, respectively. RESULT Erastin elevated cellular MDA levels and decreased the viability of chondrocytes and the erastin-induced decline in cell viability was reversed by a ferroptosis inhibitor (ferrostatin-1). Erastin downregulated lncRNA MEG3, SLC7A11 and GPX4 and upregulated miR-885-5p. Silencing of lncRNA MEG3 increased miR-885-5p and downregulated SLC7A11 and GPX4 and further sensitized chondrocytes to erastin-induced ferroptosis. In contrast, overexpression of lncRNA MEG3 had opposite effects. Dual luciferase assays confirmed binding between lncRNA MEG3 and miR-885-5p and between miR-885-5p and the 3'UTR of SLC7A11. In the synovial fluids from patients with osteoarthritis compared with synovial fluids from normal controls, the RNA levels of lncRNA MEG3 and SLC7A11 were decreased and the miR-885-5p expression level was increased. CONCLUSION Our findings indicated that lncRNA MEG3 overexpression alleviated ferroptosis in chondrocytes by affecting the miR-885-5p/SLC7A11 signalling pathway.
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Affiliation(s)
- Chongtao Zhu
- Laser Medical Center, The First People's Hospital of Yunnan Province, Kunming, 650032, China.
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, China.
| | - Bin Chen
- Orthopaedics, The First People's Hospital of Yunnan Province, Kunming, 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, China
| | - Xu He
- Yunnan Province Clinical Research Center for Geriatrics, The First People's Hospital of Yunnan Province, Kunming, 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, China
| | - Weiyuan Li
- Yunnan Province Clinical Research Center for Geriatrics, The First People's Hospital of Yunnan Province, Kunming, 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, China
| | - Shengyu Wang
- Medical School, Kunming University of Science and Technology, Kunming, 650500, China
| | - Xun Zhu
- Medical School, Kunming University of Science and Technology, Kunming, 650500, China
| | - Yan Li
- Yunnan Province Clinical Research Center for Geriatrics, The First People's Hospital of Yunnan Province, Kunming, 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, China
| | - Ping Wan
- Yunnan Province Clinical Research Center for Geriatrics, The First People's Hospital of Yunnan Province, Kunming, 650032, China.
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, China.
| | - Xiaolu Li
- Yunnan Province Clinical Research Center for Geriatrics, The First People's Hospital of Yunnan Province, Kunming, 650032, China.
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, China.
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Zou W, Wang X, Xia X, Zhang T, Nie M, Xiong J, Fang X. Resveratrol protected against the development of endometriosis by promoting ferroptosis through miR-21-3p/p53/SLC7A11 signaling pathway. Biochem Biophys Res Commun 2024; 692:149338. [PMID: 38043156 DOI: 10.1016/j.bbrc.2023.149338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 11/15/2023] [Accepted: 11/24/2023] [Indexed: 12/05/2023]
Abstract
Resveratrol is involved in regulating ferroptosis, but its role in Endometriosis (EMS) is not clear. In this study, we aim to investigate the effect of ferroptosis and resveratrol intervention in the pathogenesis of EMS cyst. Cell proliferation, migration, and oxidative stress level were analyzed. The interaction of miR-21-3p and p53 was analyzed by dual luciferase assay. The interaction between p53 and SLC7A11 were analyzed by chromatin immunoprecipitation (CHIP). The miR-21-3p, GPX4, ACSL4, FTH1, p53, SLC7A11, Ptgs2 and Chac1 expression were analyzed by RT-qPCR or Western blot. The Fe3+ deposition and miR-21-3p, GPX4, FTH1 and SLC7A11 expressions were increased, and ACSL4, p53, Ptgs2 and Chac1 expression were decreased in EMS patients. Resveratrol inhibited migration, induced Ptgs2 and Chac1 expression in EESCs. Overexpression of miR-21-3p inhibited p53, Ptgs2 and Chac1 expression, and promoted SLC7A11 expression, which was reversed by resveratrol. miR-21-3p bound to p53, which interacted with SLC7A11. Resveratrol promoted Ptgs2 and Chac1 expression in the sh-p53 EESCs. Resveratrol reduced miR-21-3p and SLC7A11 expressions, and increased p53, Ptgs2 and Chac1 expressions, and Fe3+ deposition in the lesion tissues of EMS mice, which were reversed by miR-21-3p mimics. Resveratrol activated p53/SLC7A11 pathway by down-regulating miR-21-3p to promote ferroptosis and prevent the development of EMS.
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Affiliation(s)
- Wen Zou
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Xi Wang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Xiaomeng Xia
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Tingting Zhang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Meifang Nie
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Jing Xiong
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Xiaoling Fang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China.
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Fantone S, Piani F, Olivieri F, Rippo MR, Sirico A, Di Simone N, Marzioni D, Tossetta G. Role of SLC7A11/xCT in Ovarian Cancer. Int J Mol Sci 2024; 25:587. [PMID: 38203758 PMCID: PMC10779187 DOI: 10.3390/ijms25010587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/21/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Ovarian cancer is one of the most dangerous gynecologic cancers worldwide and has a high fatality rate due to diagnosis at an advanced stage of the disease as well as a high recurrence rate due to the occurrence of chemotherapy resistance. In fact, chemoresistance weakens the therapeutic effects, worsening the outcome of this pathology. Solute Carrier Family 7 Member 11 (SLC7A11, also known as xCT) is the functional subunit of the Xc- system, an anionic L-cystine/L-glutamate antiporter expressed on the cell surface. SLC7A11 expression is significantly upregulated in several types of cancers in which it can inhibit ferroptosis and favor cancer cell proliferation, invasion and chemoresistance. SLC7A11 expression is also increased in ovarian cancer tissues, suggesting a possible role of this protein as a therapeutic target. In this review, we provide an overview of the current literature regarding the role of SLC7A11 in ovarian cancer to provide new insights on SLC7A11 modulation and evaluate the potential role of SLC7A11 as a therapeutic target.
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Affiliation(s)
- Sonia Fantone
- Scientific Direction, IRCCS INRCA, 60124 Ancona, Italy; (S.F.); (F.O.)
| | - Federica Piani
- Hypertension and Cardiovascular Risk Research Center, Medical and Surgical Sciences Department, Alma Mater Studiorum University of Bologna, 40126 Bologna, Italy;
| | - Fabiola Olivieri
- Scientific Direction, IRCCS INRCA, 60124 Ancona, Italy; (S.F.); (F.O.)
- Department of Clinical and Molecular Sciences, DISCLIMO, Università Politecnica delle Marche, 60126 Ancona, Italy;
| | - Maria Rita Rippo
- Department of Clinical and Molecular Sciences, DISCLIMO, Università Politecnica delle Marche, 60126 Ancona, Italy;
| | - Angelo Sirico
- Obstetrics and Gynecology Unit, Sant’Anna e San Sebastiano Hospital, 81100 Caserta, Italy;
| | - Nicoletta Di Simone
- Department of Biomedical Sciences, Humanitas University, 20072 Milan, Italy;
- IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy
| | - Daniela Marzioni
- Department of Experimental and Clinical Medicine, Università Politecnica delle Marche, 60126 Ancona, Italy;
| | - Giovanni Tossetta
- Department of Experimental and Clinical Medicine, Università Politecnica delle Marche, 60126 Ancona, Italy;
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Banerjee S, Sarkar R, Mukherjee A, Mitra S, Gope A, Chawla-Sarkar M. Rotavirus-induced lncRNA SLC7A11-AS1 promotes ferroptosis by targeting cystine/glutamate antiporter xCT (SLC7A11) to facilitate virus infection. Virus Res 2024; 339:199261. [PMID: 37923170 PMCID: PMC10684390 DOI: 10.1016/j.virusres.2023.199261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/13/2023] [Accepted: 11/01/2023] [Indexed: 11/07/2023]
Abstract
Rotavirus (RV) is the primary etiological agent of virus-associated gastroenteritis in infants, causing 200,000 childhood death annually. Despite the availability of vaccines, rotaviral diarrhea continues to be a severe issue in underdeveloped nations in Asia and Africa. The situation demands continual studies on host-rotavirus interactions to understand disease pathogenesis and develop effective antiviral therapeutics. Long non-coding RNAs (lncRNAs), which are a subset of non-coding RNAs of more than 200 nucleotides in length, are reported to play a regulatory function in numerous viral infections. Virus infection often alters the host transcriptome including lncRNA that are differentially expressed either to play an antiviral role or to be advantageous towards virus propagation. In the current study, qPCR array-based expression profiling of host lncRNAs was performed in rotavirus-infected HT-29 cells that identified the lncRNA SLC7A11-AS1 to be upregulated during RV infection. Knockdown of SLC7A11-AS1 conspicuously reduced RV titers implying its pro-viral significance. RV-induced SLC7A11-AS1 downregulates the gene SLC7A11/xCT that encodes the light chain subunit of the system XC- cystine-glutamate exchange transporter, leading to decrease in intracellular glutathione level and increase in lipid peroxidation, which are signature features of ferroptotic pathway. Ectopic expression of xCT also abrogated RV infection by reversing the virus optimized levels of intracellular GSH and lipid ROS levels. Cumulatively, the study reveals that RV infection triggers ferroptotic cell death via SLC7A11-AS1/xCT axis to facilitate its own propagation.
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Affiliation(s)
- Shreya Banerjee
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, P-33, C.I.T. Road, Scheme-XM, Beliaghata, Kolkata, West Bengal 700010, India
| | - Rakesh Sarkar
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, P-33, C.I.T. Road, Scheme-XM, Beliaghata, Kolkata, West Bengal 700010, India
| | - Arpita Mukherjee
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, P-33, C.I.T. Road, Scheme-XM, Beliaghata, Kolkata, West Bengal 700010, India
| | - Suvrotoa Mitra
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, P-33, C.I.T. Road, Scheme-XM, Beliaghata, Kolkata, West Bengal 700010, India
| | - Animesh Gope
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, P-33, C.I.T. Road, Scheme-XM, Beliaghata, Kolkata, West Bengal 700010, India
| | - Mamta Chawla-Sarkar
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, P-33, C.I.T. Road, Scheme-XM, Beliaghata, Kolkata, West Bengal 700010, India.
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Wang Z, Shen N, Wang Z, Yu L, Yang S, Wang Y, Liu Y, Han G, Zhang Q. TRIM3 facilitates ferroptosis in non-small cell lung cancer through promoting SLC7A11/xCT K11-linked ubiquitination and degradation. Cell Death Differ 2024; 31:53-64. [PMID: 37978273 PMCID: PMC10781973 DOI: 10.1038/s41418-023-01239-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 10/23/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023] Open
Abstract
Ferroptosis, a unique form of regulated necrotic cell death, is caused by excessive iron-dependent lipid peroxidation. However, the underlying mechanisms driving ferroptosis in human cancers remain elusive. In this study, we identified TRIM3, an E3 ubiquitin-protein ligase, as a key regulator of ferroptosis. TRIM3 is downregulated in lung adenocarcinoma (LUAD) and lung squamous cell carcinoma (LUSC), two major types of non-small cell lung cancer (NSCLC). Forced expression of TRIM3 promotes cell death by enhancing the cellular level of ROS and lipid peroxidation. Moreover, our in vivo study determined that TRIM3 overexpression diminishes the tumorigenicity of NSCLC cells, indicating that TRIM3 functions as a tumor suppressor in NSCLC. Mechanistically, TRIM3 directly interacts with SLC7A11/xCT through its NHL domain, leading to SCL7A11 K11-linked ubiquitination at K37, which promotes SLC7A11 proteasome-mediated degradation. Importantly, TRIM3 expression exhibits a negative correlation with SCL7A11 expression in clinical NSCLC samples, and low TRIM3 expression is associated with a worse prognosis. This study reveals that TRIM3 functions as a tumor suppressor that can impede the tumorigenesis of NSCLC by degrading SLC7A11, suggesting a novel therapeutic strategy against NSCLC.
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Affiliation(s)
- Zhangjie Wang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Na Shen
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Ziao Wang
- Department of Cardiothoracic Surgery, First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, China
| | - Lei Yu
- Department of Oncology, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, 225300, China
| | - Song Yang
- Department of Oncology, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, 225300, China
| | - Yang Wang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Yu Liu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Gaohua Han
- Department of Oncology, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, 225300, China.
| | - Qi Zhang
- Department of Oncology, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, 225300, China.
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29
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Wang HH, Fan SQ, Zhan YT, Peng SP, Wang WY. Suppression of the SLC7A11/glutathione axis causes ferroptosis and apoptosis and alters the mitogen-activated protein kinase pathway in nasopharyngeal carcinoma. Int J Biol Macromol 2024; 254:127976. [PMID: 37951442 DOI: 10.1016/j.ijbiomac.2023.127976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/24/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
SLC7A11 is a unit of the glutamate cystine antiporter Xc- system. It functions to import cystine for glutathione biosynthesis and maintains the redox balance in cells. Sorafenib inhibits the transporter activity of SLC7A11. The use of sorafenib has been approved in the treatment of multiple cancers. However, at present, our understanding of the mechanism of SLC7A11 and sorafenib in nasopharyngeal carcinoma (NPC) remains limited. We found that the expression of SLC7A11 was upregulated in NPC. A high SLC7A11 expression was associated with poor prognosis, metastasis, and an advanced T stage, which can be used as an independent prognostic indicator of NPC. In vitro, we observed that NPC cells relied on cystine for survival. Targeting SLC7A11 resulted in glutathione biosynthesis limitation, intracellular reactive oxygen species accumulation, lipid peroxides, ferroptosis, and apoptosis. Meanwhile, it altered mitogen activated protein kinase pathway, including p38 activation but ERK inhibition in NPC. This limited the proliferation of NPC cells. Sorafenib inhibited the proliferation and induced the death of NPC cells in vivo. In conclusion, SLC7A11 plays an important role in the occurrence and progression of NPC and may be a novel target for NPC treatment.
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Affiliation(s)
- Hai-Hua Wang
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Song-Qing Fan
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Yu-Ting Zhan
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Shu-Ping Peng
- Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, Hunan 410078, China
| | - Wei-Yuan Wang
- Department of Pathology, The Xiangya Hospital, Central South University, Changsha, Hunan 410008, China.
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30
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Tang X, Teng J, Lu K. Phillyrin sensitizes lung cancer cells to ferroptosis through inhibiting FTH1/SLC7A11 axis. Int J Clin Pharmacol Ther 2024; 62:8-19. [PMID: 37942927 DOI: 10.5414/cp204475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/12/2023] [Indexed: 11/10/2023] Open
Abstract
Ferroptosis is a newly found form of non-apoptotic regulated cell death that is essential for cancer progression. Phillyrin (PHN), an effective lignan glycoside of Forsythia suspensa, has been explored as a potential anticancer agent in some cancer types. However, it is unclear whether and how PHN could promote the death of non-small cell lung cancer (NSCLC) cells by inducing ferroptosis. Our study showed for the first time that PHN induced cell death and attenuated cell proliferation in NSCLC cells in vitro and in vivo. Functional assays showed that ferroptosis was the predominant form that contributed to PHN-induced cell death of NSCLC cells. Mechanistically, NSCLC cells exposed to PHN had a decreased ferritin heavy chain 1 (FTH1) and SLC7A11 protein expression. Exogenetic overexpression of FTH1 substantially abrogated the tumor-inhibiting effects of PHN and further upregulated the expression of SLC7A11 in NSCLC cells. In conclusion, our findings suggest that the natural product PHN exerted its antitumor activity in NSCLC by promoting ferroptosis, and the FTH1/SLC7A11 axis plays an indispensable role in PHN-induced ferroptotic cell death.
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Wu P, Zhao L, Kong G, Song B. Study on the Role and Mechanism of SLC3A2 in Tumor-Associated Macrophage Polarization and Bladder Cancer Cells Growth. Technol Cancer Res Treat 2024; 23:15330338241246649. [PMID: 38656249 PMCID: PMC11044785 DOI: 10.1177/15330338241246649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/05/2024] [Accepted: 03/18/2024] [Indexed: 04/26/2024] Open
Abstract
Background: Solute carrier family 3 member 2 (SLC3A2) is highly expressed in various types of cancers, including bladder cancer (BLCA). However, the role and mechanism of SLC3A2 in the onset and progression of BLCA are still unclear. Methods: The interfering plasmid for SLC3A2 was constructed and transfected into BLCA cells. Cell proliferation, invasion, and migration abilities were assessed to evaluate the impact of SLC3A2 silencing on BLCA cell growth. M1 and M2 macrophage polarization markers were detected to evaluate macrophage polarization. The levels of reactive oxygen species (ROS), lipid peroxidation, and Fe2+, as well as the expression of ferroptosis-related proteins, were measured to assess the occurrence of ferroptosis. Ferroptosis inhibitors were used to verify the mechanism. Results: The experimental results showed that SLC3A2 was highly expressed in BLCA cell lines. The proliferation, invasion, and migration of BLCA cells were reduced after interfering with SLC3A2. Interference with SLC3A2 led to increase the expression of M1 macrophage markers and decreased the expression of M2 macrophage markers in M0 macrophages co-cultured with tumor cells. Additionally, interference with SLC3A2 led to increased levels of ROS, lipid peroxidation, and Fe2+, downregulated the expression of solute carrier family 7 member11 (SLC7A11) and glutathione peroxidase 4 (GPX4), while upregulated the expression of acyl-coA synthetase long chain family member 4 (ACSL4) and transferrin receptor 1 (TFR1) in BLCA cells. However, the impact of SLC3A2 interference on cell proliferation and macrophage polarization was impeded by ferroptosis inhibitors. Conclusion: Interference with SLC3A2 inhibited the growth of BLCA cells and the polarization of tumor-associated macrophages by promoting ferroptosis in BLCA cells.
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Affiliation(s)
- Peishan Wu
- Department of Urology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Lingna Zhao
- Department of Urology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Guangqi Kong
- Department of Urology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Bo Song
- Department of Urology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
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Dong X, Chen X, Zhao Y, Wu Q, Ren Y. CircTMEM87A promotes the tumorigenesis of gastric cancer by regulating the miR-1276/SLC7A11 axis. J Gastroenterol Hepatol 2024; 39:121-132. [PMID: 38037531 DOI: 10.1111/jgh.16402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/27/2023] [Accepted: 10/19/2023] [Indexed: 12/02/2023]
Abstract
BACKGROUND Gastric cancer (GC) is a common malignancy with high incidence and mortality, and its pathogenesis involves the regulation of circular RNAs (circRNAs). However, the molecular mechanism of circTMEM87A in GC malignant progression is uncertain. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was performed to detect the expressions of circTMEM87A, miR-1276, and solute carrier family 7 membrane 11 (SLC7A11). Western blot was applied to detect protein expression levels of EMT-related proteins (vimentin and E-cadherin) and SLC7A11. Cell counting kit-8 assay (CCK8) and thymidine analog 5-ethynyl-2'-deoxyuridine (EdU) were performed to assess cell proliferation. Apoptosis was investigated using flow cytometry. Transwell assay and wound healing assay were carried out to examine the migration of MKN-7 and AGS cells. The Cellular ROS Assay Kit, Iron Assay Kit, and GSH/GSSG Ratio Detection Assay Kit were utilized to monitor lipid ROS level, iron level, and GSH/GSSG ratio, respectively. The interaction between miR-1276 and circTMEM87A or SLC7A11 was investigated using dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay. A xenograft mouse model was constructed to explore the function of circTMEM87A in tumor formation in vivo. RESULTS CircTMEM87A and SLC7A11 were upregulated, while miR-1276 was downregulated in GC tissues and cells. Knockdown of circTMEM87A suppressed the proliferation and migration and promoted apoptosis and ferroptosis of GC cells. CircTMEM87A served as a sponge for miR-1276, and miR-1276 inhibitor relieved the circTMEM87A knockdown-induced effects on GC cell phenotypes. Similarly, SLC7A11, a downstream gene of miR-1276, rescued miR-1276 overexpression-induced effects on GC cell function. Furthermore, circTMEM87A knockdown inhibited GC cell tumor phenotypes in vivo. CONCLUSION CircTMEM87A promoted the proliferation and migration and inhibited apoptosis and ferroptosis of GC cells by increasing SLC7A11 expression through binding to miR-1276.
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Affiliation(s)
- Xueguang Dong
- Department of Clinical Laboratory, Jinan People's Hospital Affiliated to Shandong First Medical University, Jinan, 271100, Shandong, China
| | - Xiumei Chen
- Department of Clinical Laboratory, Jinan People's Hospital Affiliated to Shandong First Medical University, Jinan, 271100, Shandong, China
| | - Yuanhao Zhao
- Department of Clinical Laboratory, Jinan People's Hospital Affiliated to Shandong First Medical University, Jinan, 271100, Shandong, China
| | - Qunyan Wu
- Department of Clinical Laboratory, Jinan People's Hospital Affiliated to Shandong First Medical University, Jinan, 271100, Shandong, China
| | - Yuguo Ren
- Department of Clinical Laboratory, Jinan People's Hospital Affiliated to Shandong First Medical University, Jinan, 271100, Shandong, China
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Lei M, Zhang YL, Huang FY, Chen HY, Chen MH, Wu RH, Dai SZ, He GS, Tan GH, Zheng WP. Gankyrin inhibits ferroptosis through the p53/SLC7A11/GPX4 axis in triple-negative breast cancer cells. Sci Rep 2023; 13:21916. [PMID: 38081931 PMCID: PMC10713534 DOI: 10.1038/s41598-023-49136-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 12/04/2023] [Indexed: 12/18/2023] Open
Abstract
Gankyrin is found in high levels in triple-negative breast cancer (TNBC) and has been established to form a complex with the E3 ubiquitin ligase MDM2 and p53, resulting in the degradation of p53 in hepatocarcinoma cells. Therefore, this study sought to determine whether gankyrin could inhibit ferroptosis through this mechanism in TNBC cells. The expression of gankyrin was investigated in relation to the prognosis of TNBC using bioinformatics. Co-immunoprecipitation and GST pull-down assays were then conducted to determine the presence of a gankyrin and MDM2 complex. RT-qPCR and immunoblotting were used to examine molecules related to ferroptosis, such as gankyrin, p53, MDM2, SLC7A11, and GPX4. Additionally, cell death was evaluated using flow cytometry detection of 7-AAD and a lactate dehydrogenase release assay, as well as lipid peroxide C11-BODIPY. Results showed that the expression of gankyrin is significantly higher in TNBC tissues and cell lines, and is associated with a poor prognosis for patients. Subsequent studies revealed that inhibiting gankyrin activity triggered ferroptosis in TNBC cells. Additionally, silencing gankyrin caused an increase in the expression of the p53 protein, without altering its mRNA expression. Co-immunoprecipitation and GST pull-down experiments indicated that gankyrin and MDM2 form a complex. In mouse embryonic fibroblasts lacking both MDM2 and p53, this gankyrin/MDM2 complex was observed to ubiquitinate p53, thus raising the expression of molecules inhibited by ferroptosis, such as SLC7A11 and GPX4. Furthermore, silencing gankyrin in TNBC cells disrupted the formation of the gankyrin/MDM2 complex, hindered the degradation of p53, increased SLC7A11 expression, impeded cysteine uptake, and decreased GPX4 production. Our findings suggest that TNBC cells are able to prevent cell ferroptosis through the gankyrin/p53/SLC7A11/GPX4 signaling pathway, indicating that gankyrin may be a useful biomarker for predicting TNBC prognosis or a potential therapeutic target.
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Affiliation(s)
- Ming Lei
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital, Hainan Medical University, Haikou, 570311, China
- Key Laboratory of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, 571199, China
| | - Yun-Long Zhang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, 571199, China
| | - Feng-Ying Huang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, 571199, China
| | - Heng-Yu Chen
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital, Hainan Medical University, Haikou, 570311, China
| | - Ming-Hui Chen
- Key Laboratory of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, 571199, China
| | - Ri-Hong Wu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, 571199, China
| | - Shu-Zhen Dai
- Key Laboratory of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, 571199, China
| | - Gui-Sheng He
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital, Hainan Medical University, Haikou, 570311, China.
| | - Guang-Hong Tan
- Key Laboratory of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, 571199, China.
| | - Wu-Ping Zheng
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital, Hainan Medical University, Haikou, 570311, China.
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Ng D, Pawling J, Dennis JW. Gene purging and the evolution of Neoave metabolism and longevity. J Biol Chem 2023; 299:105409. [PMID: 37918802 PMCID: PMC10722388 DOI: 10.1016/j.jbc.2023.105409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/19/2023] [Accepted: 10/25/2023] [Indexed: 11/04/2023] Open
Abstract
Maintenance of the proteasome requires oxidative phosphorylation (ATP) and mitigation of oxidative damage, in an increasingly dysfunctional relationship with aging. SLC3A2 plays a role on both sides of this dichotomy as an adaptor to SLC7A5, a transporter of branched-chain amino acids (BCAA: Leu, Ile, Val), and to SLC7A11, a cystine importer supplying cysteine to the synthesis of the antioxidant glutathione. Endurance in mammalian muscle depends in part on oxidation of BCAA; however, elevated serum levels are associated with insulin resistance and shortened lifespans. Intriguingly, the evolution of modern birds (Neoaves) has entailed the purging of genes including SLC3A2, SLC7A5, -7, -8, -10, and SLC1A4, -5, largely removing BCAA exchangers and their interacting Na+/Gln symporters in pursuit of improved energetics. Additional gene purging included mitochondrial BCAA aminotransferase (BCAT2), pointing to reduced oxidation of BCAA and increased hepatic conversion to triglycerides and glucose. Fat deposits are anhydrous and highly reduced, maximizing the fuel/weight ratio for prolonged flight, but fat accumulation in muscle cells of aging humans contributes to inflammation and senescence. Duplications of the bidirectional α-ketoacid transporters SLC16A3, SLC16A7, the cystine transporters SLC7A9, SLC7A11, and N-glycan branching enzymes MGAT4B, MGAT4C in Neoaves suggests a shift to the transport of deaminated essential amino acid, and stronger mitigation of oxidative stress supported by the galectin lattice. We suggest that Alfred Lotka's theory of natural selection as a maximum power organizer (PNAS 8:151,1922) made an unusually large contribution to Neoave evolution. Further molecular analysis of Neoaves may reveal novel rewiring with applications for human health and longevity.
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Affiliation(s)
- Deanna Ng
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Judy Pawling
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - James W Dennis
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada; Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto Ontario, Canada.
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Jiang T, Xiao Y, Zhou J, Luo Z, Yu L, Liao Q, Liu S, Qi X, Zhang H, Hou M, Miao W, Batsaikhan B, Damba T, Liang Y, Li Y, Zhou L. Arbutin alleviates fatty liver by inhibiting ferroptosis via FTO/SLC7A11 pathway. Redox Biol 2023; 68:102963. [PMID: 37984229 PMCID: PMC10694775 DOI: 10.1016/j.redox.2023.102963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/26/2023] [Accepted: 11/10/2023] [Indexed: 11/22/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a potentially serious disease that affects 30 % of the global population and poses a significant risk to human health. However, to date, no safe, effective and appropriate treatment modalities are available. In recent years, ferroptosis has emerged as a significant mode of cell death and has been found to play a key regulatory role in the development of NAFLD. In this study, we found that arbutin (ARB), a natural antioxidant derived from Arctostaphylos uva-ursi (L.), inhibits the onset of ferroptosis and ameliorates high-fat diet-induced NAFLD in vivo and in vitro. Using reverse docking, we identified the demethylase fat mass and obesity-related protein (FTO) as a potential target of ARB. Subsequent mechanistic studies revealed that ARB plays a role in controlling methylation of the SLC7A11 gene through inhibition of FTO. In addition, we demonstrated that SLC7A11 could alleviate the development of NAFLD in vivo and in vitro. Our findings identify the FTO/SLC7A11 axis as a potential therapeutic target for the treatment of NAFLD. Specifically, we show that ARB alleviates NAFLD by acting on the FTO/SLC7A11 pathway to inhibit ferroptosis.
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Affiliation(s)
- Tianyu Jiang
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Yao Xiao
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Jinfeng Zhou
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Zupeng Luo
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Lin Yu
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Qichao Liao
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Siqi Liu
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Xinyi Qi
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Hao Zhang
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Menglong Hou
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - WeiWei Miao
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Batbold Batsaikhan
- Department of Internal Medicine, Institute of Medical Sciences, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia; Department of Health Research, Graduate School, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Turtushikh Damba
- School of Pharmacy, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Yunxiao Liang
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Yixing Li
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China.
| | - Lei Zhou
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China.
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Liang B, Wu Y. Hsa-miR-26a-5p improves OSCC sensitivity to ferroptosis by inhibiting SLC7A11. Arch Oral Biol 2023; 156:105807. [PMID: 37776596 DOI: 10.1016/j.archoralbio.2023.105807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 09/05/2023] [Accepted: 09/17/2023] [Indexed: 10/02/2023]
Abstract
OBJECTIVE SLC7A11 plays a crucial role in ferroptosis and is upregulated in oral squamous cell carcinoma (OSCC) samples. This study mainly aimed to elucidate the association of SLC7A11 with ferroptosis in OSCC and analyze its upstream regulatory mechanism. DESIGN The expression of SLC7A11 in OSCC and paracancerous tissues was detected. After administration of different concentrations of erastin to OSCC cells, cell viability was examined by MTT, and changes in GSH, MDA and Fe2+ concentrations were determined. Then, mitochondrial changes were examined by transmission electron microscopy. Bioinformatics analysis was performed to predict the upstream regulatory miRNA of SLC7A11, and the interaction between miR-26a and SLC7A11 was confirmed by a dual luciferase reporter gene. The effect of miR-26a mimics on ferroptosis resistance was also examined. RESULTS SLC7A11 expression was upregulated in both OSCC patients and cells, with high SLC7A11 expression levels in SCC-9 cells with an IC50 = 69.75 μM for erastin and low SLC7A11 expression levels in SCC-4 cells with an IC50 = 8.463 μM for erastin. SCC-9 exhibited a higher level of ferroptosis resistance than SCC-4. miR-26a-5p expression was downregulated in both OSCC patients and cells. A dual luciferase reporter assay confirmed that miR-26a-5p targets binding to the SLC7A11 3'UTR. Transfection of the miR-26a mimic significantly inhibited the viability of OSCC cells and promoted erastin-induced cellular ferroptosis. Transfection of miR-26a inhibitor gave the opposite result. Overexpression of SLC7A11 significantly reversed miR-26a mimic ferroptosis induction. CONCLUSION miR-26a-5p can exert OSCC inhibitory effects by regulating SLC7A11 and promote ferroptosis in OSCC cells by inhibiting SLC7A11.
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Affiliation(s)
- Beiming Liang
- Department of Oral and Maxillofacial Surgery, Guizhou Medical University, Guiyang, China
| | - Yadong Wu
- Department of Oral and Maxillofacial Surgery, the Affiliated Stomatological Hospital of Guizhou Medical University, Guiyang, China.
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Wang H, Chen W, Cui Y, Gong H, Li H. KIAA1429 protects hepatocellular carcinoma cells from ferroptotic cell death with a m 6 A-dependent posttranscriptional modification of SLC7A11. J Cell Mol Med 2023; 27:4118-4132. [PMID: 37830241 PMCID: PMC10746954 DOI: 10.1111/jcmm.17997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/14/2023] [Accepted: 10/05/2023] [Indexed: 10/14/2023] Open
Abstract
N6 -methyladenosine (m6 A) modification represents the most abundant internal methylation of eukaryotic RNAs. KIAA1429 acts as a key component of the m6 A methyltransferase complex, but its function and mechanism in ferroptotic cell death of hepatocellular carcinoma (HCC) are barely defined. We found that KIAA1429 suppression triggered ferroptosis in HCC cells according to increased cell death, iron and MDA levels, C11-BODIPY-positive cells, ROS production and decreased GSH level. Ferroptosis inhibitors ferrostatin-1 (0.5 μM) and liproxstatin-1 (10 μM) blocked KIAA1429 suppression-induced ferroptosis of HCC cells. In addition, overexpressed KIAA1429 notably heightened the activity of cystine/glutamate antiporter (SLC7A11). SLC7A11 up-regulation partially hindered KIAA1429 inhibition-mediated ferroptosis of HCC cells. The regulation SLC7A11 by KIAA1429 was attenuated by global m6 A inhibitor cycloleucine (40 μM). RNA immunoprecipitation confirmed the binding of KIAA1429 to m6 A on SLC7A11 transcript. Additionally, it was proven that KIAA1429 inhibition mitigated HCC growth in subcutaneous xenograft mice through SLC7A11. Altogether, our findings first propose that KIAA1429 protects HCC cells from ferroptosis with a m6 A-dependent post-transcriptional modification of SLC7A11 and offer a novel insight into the dysregulated epi-transcriptomics in the context of HCC.
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Affiliation(s)
- Houhong Wang
- Department of General SurgeryThe Affiliated Bozhou Hospital of Anhui Medical UniversityBozhouAnhuiChina
| | - Wenli Chen
- Department of General SurgeryThe Affiliated Bozhou Hospital of Anhui Medical UniversityBozhouAnhuiChina
| | - Yayun Cui
- Division of Life Sciences and Medicine, Department of Cancer Radiotherapy, The First Affiliated Hospital of USTCUniversity of Science and Technology of China (Anhui Provincial Cancer Hospital)HefeiAnhuiChina
| | - Huihui Gong
- Faculty of Health and Life SciencesOxford Brookes UniversityOxfordUnited Kingdom
| | - Heng Li
- Department of Comprehensive SurgeryAnhui Provincial Cancer Hospital, West District of The First Affiliated Hospital of USTCHefeiAnhuiChina
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Zhao G, Chen H, Luo J. CircBCAR3 sponges miR-27a-3p and mediates ferroptosis in human B-prolymphocytic leukaemia cells via SLC7A11. Cell Mol Biol (Noisy-le-grand) 2023; 69:181-187. [PMID: 38063095 DOI: 10.14715/cmb/2023.69.12.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Indexed: 12/18/2023]
Abstract
B-lymphocytic leukaemia is one of the most commonly diagnosed blood malignancies, and our knowledge of B-prolymphocytic leukaemia remained barely comprehensive. CircRNAs and miRNAs were identified of important regulatory roles in tumours. This study focused on the possibly existing interaction of circBCAR3 and miR-27a-3p, and downstream molecules thereafter in B-prolymphocytic leukaemia cells. CircBCAR3 and miR-27a-3p expression was evaluated in JVM-2 cell line and normal lymphocytes. Dual-luciferase luminescence assay was conducted for validation of circBCAR3 and miR-27a-3p interaction, as well as western blot and flow cytometry for evaluation and validation of their association with SLC7A11, reactive-oxygen species and Fe2+ regarding ferroptosis. CircBCAR3 were upregulated in JVM-2 cells and were reversely correlated with the expression of miR-27a-3p. CircBCAR3 targeted at miR-27a-3p and was consequently associated with SLC7A11 expression positively, inhibiting ferroptosis and peroxidative damage in JVM-2 cells. This study identified a circBCAR3-miR-27a-3p-SLC7A11 axis regulating ferroptosis and peroxidation of B-prolymphocytic leukaemia cells which might be a key mechanism facilitating the survival of tumour cells. However, further validation based on more diverse cell lines and animal models might be required.
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Affiliation(s)
- Guangwei Zhao
- Department of Oncology, The Second Hospital of Hebei Medical University, Shijiazhuang, China.
| | - Huan Chen
- Department of Ophthalmology, The Second Hospital of Hebei Medical University, Shijiazhuang, China.
| | - Jianmin Luo
- Department of Hematopathology, The Second Hospital of Hebei Medical University, Shijiazhuang, China.
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Wang D, Fang Y, Lin L, Long W, Wang L, Yu L, Deng H, Wang D. Upregulating miR-181b promotes ferroptosis in osteoarthritic chondrocytes by inhibiting SLC7A11. BMC Musculoskelet Disord 2023; 24:862. [PMID: 37932746 PMCID: PMC10629093 DOI: 10.1186/s12891-023-07003-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 10/31/2023] [Indexed: 11/08/2023] Open
Abstract
BACKGROUND Osteoarthritis (OA) is a common disease with a complex pathology. This study aimed to investigate the correlation between the aberrant upregulation of miR-181b and ferroptosis in chondrocytes during the progression of OA. METHODS An OA cell model was constructed with erastin. Ferrostatin-1 (Fer), bioinformatics, and dual-luciferase activity reports were used to investigate the effect of miR-181b on OA. Finally, a rat model of OA was induced by monosodium iodoacetate to verify that miR-181b inhibits SLC7A11 gene expression and increases ferroptosis. RESULTS The results showed that Fer could effectively reverse the erastin-induced inhibition of human chondrocyte viability, increase the level of collagenous proteins in human chondrocytes, and inhibit oxidative stress and ferroptosis. MiR-181b is abnormally elevated in OA cell models. Transfection of a miR-181b inhibitor could increase the expression levels of the ferroptosis-related proteins solute carrier family 7 members 11 (SLC7A11) and glutathione peroxidase 4 (GPX4), thereby inhibiting the occurrence of ferroptosis in chondrocytes. In addition, hsa-miR-181b-5p and SLC7A11 have a targeted regulatory effect. Transfection of SLC7A11 siRNA effectively abrogated the increase in chondrocyte viability induced by the miR-181 inhibitor and increased ferroptosis. Finally, miR-181b was shown to exacerbate OA disease progression by inhibiting SLC7A11 gene expression and increasing ferroptosis in a rat OA model. CONCLUSIONS Elevating miR-181b may mediate chondrocyte ferroptosis by targeting SLC7A11 in OA.
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Affiliation(s)
- Dexin Wang
- Department of Orthopaedics, Haishu Branch, Ningbo First Hospital, Ningbo, 315153, China
| | - Yu Fang
- Department of Orthopaedics, Haishu Branch, Ningbo First Hospital, Ningbo, 315153, China
| | - Liang Lin
- Department of Orthopaedics, Haishu Branch, Ningbo First Hospital, Ningbo, 315153, China
| | - Wensuo Long
- Department of Orthopaedics, Haishu Branch, Ningbo First Hospital, Ningbo, 315153, China
| | - Lei Wang
- Department of Orthopaedics, Haishu Branch, Ningbo First Hospital, Ningbo, 315153, China
| | - Liwei Yu
- Department of Orthopaedics, Haishu Branch, Ningbo First Hospital, Ningbo, 315153, China
| | - Huaiming Deng
- Department of Orthopaedics, Haishu Branch, Ningbo First Hospital, Ningbo, 315153, China
| | - Dan Wang
- Department of Pharmacology, Medical College of Dalian University, Dalian, 116622, China.
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Huang S, Zhang Q, Zhao M, Wang X, Zhang Y, Gan B, Zhang P. The deubiquitinase ZRANB1 is an E3 ubiquitin ligase for SLC7A11 and regulates ferroptotic resistance. J Cell Biol 2023; 222:e202212072. [PMID: 37831441 PMCID: PMC10570852 DOI: 10.1083/jcb.202212072] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 06/13/2023] [Accepted: 08/31/2023] [Indexed: 10/14/2023] Open
Abstract
The dependency of cancer cells on iron increases their susceptibility to ferroptosis, thus providing new opportunities for patients with treatment-resistant tumors. However, we show that lipid peroxidation, a hallmark of ferroptosis, was found in various areas of patient samples, indicating the potential resistance of ferroptosis. Using whole deubiquitinases (DUBs) sgRNA screening, we found that loss of ZRANB1 confers cancer cell resistance to ferroptosis. Intriguingly, functional studies revealed that ZRANB1 ubiquitinates and represses SLC7A11 expression as an E3 ubiquitin ligase and that ZRANB1 inhibits glutathione (GSH) synthesis through SLC7A11 degradation, leading to elevated lipid peroxidation and ferroptosis. Deletion of the region (residues 463-584) abolishes the E3 activity of ZRANB1. Moreover, we show that ZRANB1 has lower expression in tumors, which is positively correlated with lipid peroxidation. Collectively, our results demonstrate the role of ZRANB1 in ferroptosis resistance and unveil mechanisms involving modulation of E3 ligase activity through an unconventional catalytic domain.
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Affiliation(s)
- Shan Huang
- Department of Oncology, National Engineering Research Center for Nanomedicine, Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Qimin Zhang
- Department of Oncology, National Engineering Research Center for Nanomedicine, Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Manyu Zhao
- Department of Oncology, National Engineering Research Center for Nanomedicine, Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Xing Wang
- Translational Medicine Center, Shanghai General Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
- Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Yilei Zhang
- Department of Biochemistry and Molecular Biology, The Institute of Molecular and Translational Medicine, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Boyi Gan
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Peijing Zhang
- Department of Oncology, National Engineering Research Center for Nanomedicine, Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
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Nie J, Ling Y, Jin M, Chen Z, Liu W, Shen W, Fang T, Li J, He Y. Butyrate enhances erastin-induced ferroptosis of osteosarcoma cells via regulating ATF3/SLC7A11 pathway. Eur J Pharmacol 2023; 957:176009. [PMID: 37619784 DOI: 10.1016/j.ejphar.2023.176009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/04/2023] [Accepted: 08/21/2023] [Indexed: 08/26/2023]
Abstract
Osteosarcoma (OS) is a highly fatal bone tumor characterized by high degree of malignancy and early lung metastasis. Traditional chemotherapy fails in improving the efficacy and survival rate of patients with OS. Butyrate (NaBu) has been reported as a new antitumor drug for inhibiting proliferation and inducing apoptosis in various cancer cells. However, the effect of NaBu on the ferroptosis of OS is still unknown. This study aimed to investigate whether NaBu promotes erastin-induced ferroptosis in OS cells and to uncover the underlying mechanism. Here, we found that NaBu significantly enhanced erastin-induced ferroptosis in vitro and in vivo. Compared with the group that erastin used alonely, pre-treating with NaBu exacerbated erastin-meditated GSH depletion, lipid peroxidation, and mitochondrial morphologic changes in OS cells. In a subcutaneous OS model, NaBu combined with erastin significantly reduced tumor growth and increased the levels of 4-HNE. Mechanistically, NaBu downregulated SLC7A11 transcription via regulating ATF3 expression. Overexpression of ATF3 facilitated erastin to induce ferroptosis, while ATF3 knockdown attenuated NaBu-induced ferroptosis sensitivity. In conclusion, our findings revealed a previously unidentified role of NaBu in erastin-induced ferroptosis by regulating SLC7A11, suggesting that NaBu may be a potential therapeutic agent for OS treatment.
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Affiliation(s)
- Jiangbo Nie
- Department of Orthopedics, Huzhou Central Hospital, Huzhou, Zhejiang, 313000, China; Zhejiang University Huzhou Hospital, Huzhou, Zhejiang, 313000, China
| | - Yuhang Ling
- Central Laboratory, The First Affiliated Hospital of Huzhou University, Huzhou, Zhejiang, 313000, China; Huzhou Key Laboratory of Translational Medicine, The First Affiliated Hospital of Huzhou University, Huzhou, Zhejiang, 313000, China
| | - Mingchao Jin
- Department of Orthopedics, Huzhou Central Hospital, Huzhou, Zhejiang, 313000, China; Zhejiang University Huzhou Hospital, Huzhou, Zhejiang, 313000, China
| | - Zhuo Chen
- Department of Orthopedics, Huzhou Central Hospital, Huzhou, Zhejiang, 313000, China; Zhejiang University Huzhou Hospital, Huzhou, Zhejiang, 313000, China
| | - Wei Liu
- Department of Orthopedics, Huzhou Central Hospital, Huzhou, Zhejiang, 313000, China
| | - Weiyun Shen
- Central Laboratory, The First Affiliated Hospital of Huzhou University, Huzhou, Zhejiang, 313000, China; Huzhou Key Laboratory of Translational Medicine, The First Affiliated Hospital of Huzhou University, Huzhou, Zhejiang, 313000, China
| | - Tianshun Fang
- Department of Orthopedics, Huzhou Central Hospital, Huzhou, Zhejiang, 313000, China; Zhejiang University Huzhou Hospital, Huzhou, Zhejiang, 313000, China
| | - Jianyou Li
- Department of Orthopedics, Huzhou Central Hospital, Huzhou, Zhejiang, 313000, China; Zhejiang University Huzhou Hospital, Huzhou, Zhejiang, 313000, China.
| | - Ying He
- Central Laboratory, The First Affiliated Hospital of Huzhou University, Huzhou, Zhejiang, 313000, China; Huzhou Key Laboratory of Translational Medicine, The First Affiliated Hospital of Huzhou University, Huzhou, Zhejiang, 313000, China.
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Wu Q, Liang Z, Jiang J, Feng X, Liu J, Zhang Z, Wang H, Wang N, Gou Y, Li Z, Cao Y. Macrophages originated IL-33/ST2 inhibits ferroptosis in endometriosis via the ATF3/SLC7A11 axis. Cell Death Dis 2023; 14:668. [PMID: 37816731 PMCID: PMC10564909 DOI: 10.1038/s41419-023-06182-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 09/13/2023] [Accepted: 09/26/2023] [Indexed: 10/12/2023]
Abstract
Endometriosis is a gynecological inflammatory disease that is linked with immune cells, specifically macrophages. IL-33 secreted from macrophages is known to accelerate the progression of endometriosis. The periodic and repeated bleeding that occurs in women with endometriosis leads to excess iron in the microenvironment that is conducive to ferroptosis, a process related to intracellular ROS production, lipid peroxidation and mitochondrial damage. It is suggested that eESCs may specifically be able to inhibit ferroptosis. However, it is currently unclear whether IL-33 directly regulates ferroptosis to influence the disease course in endometriosis. In this study, eESCs co-cultured with macrophages or stimulated with IL-33/ST2 were observed to have increased cell viability and migration. Additionally, IL-33/ST2 decreased intracellular iron levels and lipid peroxidation in eESCs exposed to erastin treatment. Furthermore, IL-33/ST2 treatment resulted in a notable upregulation in SLC7A11 expression in eESCs due to the downregulation of negative transcription factor ATF3, thereby suppressing ferroptosis. The P38/JNK pathway activated by IL-33/ST2 was also found to inhibit the transcription factor ATF3. Therefore, we concluded that IL-33/ST2 inhibits the ATF3-mediated reduction in SLC7A11 transcript levels via the P38/JNK pathway. The findings reveal that macrophage-derived IL-33 upregulates SLC7A11 in eESCs through the p38/JNK/ATF3 pathway, ultimately resulting in protection against ferroptosis in eESCs. Moreover, we conducted an experiment using endometriosis model mice that showed that a combination of IL-33-Ab and erastin treatment alleviated the disease, showing the promise of combining immunotherapy and ferroptosis therapy.
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Affiliation(s)
- Qiong Wu
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Harbin Medical University, 150086, Harbin, China
| | - Zongwen Liang
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Harbin Medical University, 150086, Harbin, China
| | - Jing Jiang
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Harbin Medical University, 150086, Harbin, China
| | - Xiaoming Feng
- Academy of Agriculture and Food Science and Technology, HeiLongJiang Agricultural Engineearing Vocational College, Harbin, China
| | - Jinming Liu
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Harbin Medical University, 150086, Harbin, China
| | - Zongfeng Zhang
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Harbin Medical University, 150086, Harbin, China.
| | - Honglin Wang
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Harbin Medical University, 150086, Harbin, China
| | - Ning Wang
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Harbin Medical University, 150086, Harbin, China
| | - Yanling Gou
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Harbin Medical University, 150086, Harbin, China
| | - Zhi Li
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Harbin Medical University, 150086, Harbin, China
| | - Yingying Cao
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Harbin Medical University, 150086, Harbin, China
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de Baat A, Meier DT, Fontana A, Böni-Schnetzler M, Donath MY. Cystine/Glutamate antiporter system xc- deficiency impairs macrophage glutathione metabolism and cytokine production. PLoS One 2023; 18:e0291950. [PMID: 37792774 PMCID: PMC10550110 DOI: 10.1371/journal.pone.0291950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 09/09/2023] [Indexed: 10/06/2023] Open
Abstract
System xc-, encoded by Slc7a11, is an antiporter responsible for exporting glutamate while importing cystine, which is essential for protein synthesis and the formation of thiol peptides, such as glutathione. Glutathione acts as a co-factor for enzymes responsible for scavenging reactive oxygen species. Upon exposure to bacterial products, macrophages exhibit a rapid upregulation of system xc-. This study investigates the impact of Slc7a11 deficiency on the functionality of peritoneal and bone marrow-derived macrophages. Our findings reveal that the absence of Slc7a11 results in significantly reduced glutathione levels, compromised mitochondrial flexibility, and hindered cytokine production in bone marrow-derived macrophages. Conversely, system xc- has a lesser impact on peritoneal macrophages in vivo. These results indicate that system xc- is essential for maintaining glutathione levels, mitochondrial functionality, and cytokine production, with a heightened importance under atmospheric oxygen tension.
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Affiliation(s)
- Axel de Baat
- Clinic of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Daniel T. Meier
- Clinic of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Adriano Fontana
- Clinic of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Marianne Böni-Schnetzler
- Clinic of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Marc Y. Donath
- Clinic of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
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Chen Y, Lu T, Liu Y, Liu Y, Bai S, Chen Q, Zhao B, Wu X. Establishment of SLC7A11-knockout mouse and its preliminary investigation in melanoma. In Vitro Cell Dev Biol Anim 2023; 59:729-737. [PMID: 37932516 DOI: 10.1007/s11626-023-00819-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 10/16/2023] [Indexed: 11/08/2023]
Abstract
Solute carrier family 7 member 11 (SLC7A11)/xCT is an amino acid transporter that mediates the cystine uptake and glutamate export, participates in several malignant tumors' progression. However, the role of SLC7A11 on the occurrence and development of melanoma still remains unclear. Here, the transcribed mRNA encoding for Cas9 and sgRNA targeting SLC7A11 in vitro were microinjected into zygotes, to establish the SLC7A11 knockout (KO) mice (SLC7A11-/-). Further, we conducted melanoma-bearing mice using the metastatic melanoma cell line (B16-F10) to observe the melanoma development. There was no off-target in KO mice detected by T7E1 cleavage assay. The results showed that the tumor volume of KO mice was significantly lower than that of SLC7A11+/+ (WT) mice at 8d, 10d, 12d, 14d, and 16d (P < 0.05). The tumors of WT appeared to more disorganized morphology, more unbalanced nuclear-cytoplasmic ratio, less defined boundary, and increased tumor necrosis. And after SLC7A11 deletion, the expression of CXCL9 and TLR6 were significantly up-regulated, and that of NOS2 and CCL8 were significantly down-regulated (P < 0.01). Additionally, Ki67 immunostaining revealed lower proliferating cells in the tumors of SLC7A11 KO mice compared to WT mice. In summary, the deletion of SLC7A11 significantly inhibited the development of melanoma. Our results provide direct evidence to identify SLC7A11 as a novel target for molecular therapy and prognosis judgment of melanoma.
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Affiliation(s)
- Yang Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Tingting Lu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Yufei Liu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Yongqi Liu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Shaocheng Bai
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Qiuran Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Bohao Zhao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Xinsheng Wu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China.
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Yu H, Zhu K, Wang M, Jiang X. TXNDC12 knockdown promotes ferroptosis by modulating SLC7A11 expression in glioma. Clin Transl Sci 2023; 16:1957-1971. [PMID: 37503932 PMCID: PMC10582671 DOI: 10.1111/cts.13604] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/29/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023] Open
Abstract
Ferroptosis is an iron-dependent cell death process mainly triggered by reactive oxygen species (ROS) and lipid peroxidation. Thioredoxin domain protein 12 (TXNDC12) promotes the development of some tumors; however, its function in tumor ferroptosis remains unclear. In this study, we found that knockdown of TXNDC12 promoted erastin-induced increase in ROS, lipid peroxidation, and Fe2+ levels, and decreased glutathione content. TXNDC12 is involved in ferroptosis by regulating SLC7A11. Further studies showed that TXNDC12 knockdown promoted an erastin-induced decrease in glioma cell viability. Overall, TXNDC12 played a significant role in ferroptosis by modulating SLC7A11 expression. Thus, TXNDC12 and ferroptosis may provide new targets for the treatment of gliomas.
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Affiliation(s)
- Hao Yu
- Department of Neurosurgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Kai Zhu
- Department of Neurosurgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Minjie Wang
- Department of Neurosurgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Xiaobing Jiang
- Department of Neurosurgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
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Ruiu R, Cossu C, Iacoviello A, Conti L, Bolli E, Ponzone L, Magri J, Rumandla A, Calautti E, Cavallo F. Cystine/glutamate antiporter xCT deficiency reduces metastasis without impairing immune system function in breast cancer mouse models. J Exp Clin Cancer Res 2023; 42:254. [PMID: 37770957 PMCID: PMC10540318 DOI: 10.1186/s13046-023-02830-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 09/12/2023] [Indexed: 09/30/2023] Open
Abstract
BACKGROUND The upregulation of antioxidant mechanisms is a common occurrence in cancer cells, as they strive to maintain balanced redox state and prevent oxidative damage. This includes the upregulation of the cystine/glutamate antiporter xCT, which plays a crucial role in protecting cancer cells from oxidative stress. Consequently, targeting xCT has become an attractive strategy for cancer treatment. However, xCT is also expressed by several types of immune cells where it has a role in proliferation and effector functions. In light of these observations, a comprehensive understanding of the specific role of xCT in the initiation and progression of cancer, as well as its potential impact on the immune system within the tumor microenvironment and the anti-tumor response, require further investigation. METHODS We generated xCTnull BALB/c mice to investigate the role of xCT in the immune system and xCTnull/Erbb2-transgenic BALB-neuT mice to study the role of xCT in a mammary cancer-prone model. We also used mammary cancer cells derived from BALB-neuT/xCTnull mice and xCTKO 4T1 cells to test the contribution of xCT to malignant properties in vitro and in vivo. RESULTS xCT depletion in BALB-neuT/xCTnull mice does not alter autochthonous tumor initiation, but tumor cells isolated from these mice display proliferation and redox balance defects in vitro. Although xCT disruption sensitizes 4T1 cells to oxidative stress, it does not prevent transplantable tumor growth, but reduces cell migration in vitro and lung metastasis in vivo. This is accompanied by an altered immune cell recruitment in the pre-metastatic niche. Finally, systemic depletion of xCT in host mice does not affect transplantable tumor growth and metastasis nor impair the proper mounting of both humoral and cellular immune responses in vivo. CONCLUSIONS xCT is dispensable for proper immune system function, thus supporting the safety of xCT targeting in oncology. Nevertheless, xCT is involved in several processes required for the metastatic seeding of mammary cancer cells, thus broadening the scope of xCT-targeting approaches.
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Affiliation(s)
- Roberto Ruiu
- Department of Molecular Biotechnology and Health Sciences, Laboratory of Oncoimmunology, Molecular Biotechnology Center "Guido Tarone", University of Turin, Via Nizza 52, Turin, 10126, Italy
| | - Chiara Cossu
- Department of Molecular Biotechnology and Health Sciences, Laboratory of Oncoimmunology, Molecular Biotechnology Center "Guido Tarone", University of Turin, Via Nizza 52, Turin, 10126, Italy
| | - Antonella Iacoviello
- Department of Molecular Biotechnology and Health Sciences, Laboratory of Oncoimmunology, Molecular Biotechnology Center "Guido Tarone", University of Turin, Via Nizza 52, Turin, 10126, Italy
| | - Laura Conti
- Department of Molecular Biotechnology and Health Sciences, Laboratory of Oncoimmunology, Molecular Biotechnology Center "Guido Tarone", University of Turin, Via Nizza 52, Turin, 10126, Italy
| | - Elisabetta Bolli
- Department of Molecular Biotechnology and Health Sciences, Laboratory of Oncoimmunology, Molecular Biotechnology Center "Guido Tarone", University of Turin, Via Nizza 52, Turin, 10126, Italy
| | - Luca Ponzone
- Department of Molecular Biotechnology and Health Sciences, Laboratory of Epithelial Stem Cell Biology and Signaling, Molecular Biotechnology Center "Guido Tarone", University of Turin, Via Nizza 52, Turin, 10126, Italy
| | - Jolanda Magri
- Department of Molecular Biotechnology and Health Sciences, Laboratory of Oncoimmunology, Molecular Biotechnology Center "Guido Tarone", University of Turin, Via Nizza 52, Turin, 10126, Italy
- Laboratory of Immunotherapy, IIGM - Italian Institute for Genomic Medicine, c/o IRCCS, Candiolo, Italy
- Candiolo Cancer Institute, FPO - IRCCS, Candiolo, Italy
| | - Alekya Rumandla
- Department of Molecular Biotechnology and Health Sciences, Laboratory of Oncoimmunology, Molecular Biotechnology Center "Guido Tarone", University of Turin, Via Nizza 52, Turin, 10126, Italy
- Biocon Bristol Myers Squibb R&D Center, Bommasandra Jigani Link Road, Bommasandra Industrial Area, Bangalore, Karnataka, 560099, India
| | - Enzo Calautti
- Department of Molecular Biotechnology and Health Sciences, Laboratory of Epithelial Stem Cell Biology and Signaling, Molecular Biotechnology Center "Guido Tarone", University of Turin, Via Nizza 52, Turin, 10126, Italy
| | - Federica Cavallo
- Department of Molecular Biotechnology and Health Sciences, Laboratory of Oncoimmunology, Molecular Biotechnology Center "Guido Tarone", University of Turin, Via Nizza 52, Turin, 10126, Italy.
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Lei S, Chen C, Han F, Deng J, Huang D, Qian L, Zhu M, Ma X, Lai M, Xu E, Zhang H. AMER1 deficiency promotes the distant metastasis of colorectal cancer by inhibiting SLC7A11- and FTL-mediated ferroptosis. Cell Rep 2023; 42:113110. [PMID: 37682704 DOI: 10.1016/j.celrep.2023.113110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 07/21/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
The crosstalk between ferroptosis and cancer metastasis remains unclear. Here, we identify AMER1 as a key regulator of ferroptosis. AMER1 loss causes resistance to ferroptosis in colorectal cancer (CRC) cells. Interestingly, AMER1-deficient CRC cells preferentially form distant metastases, while AMER1-naive CRC cells mainly invade lymph nodes. Moreover, the ferroptosis inhibitor liproxstatin-1 effectively promotes hematogenous transfer of AMER1-naive cells. Mechanistically, AMER1 binds to SLC7A11 and ferritin light chain (FTL) and recruits β-TrCP1/2, which degrade SLC7A11 and FTL by ubiquitination. Therefore, AMER1 deficiency increases cellular cystine levels but decreases the pool of labile free iron, thereby enhancing resistance to ferroptosis in CRC cells. Thus, AMER1 deficiency increases the survival of CRC cells in the blood under conditions of high oxidative stress and then promotes hematogenous metastasis of CRC. In conclusion, AMER1 mediates the crosstalk between ferroptosis and cancer metastasis, which provides a window of opportunity for treating metastatic colorectal cancer patients with AMER1 mutations.
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Affiliation(s)
- Siqin Lei
- Department of Pathology and International Institutes of Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Research Unit of Intelligence Classification of Tumor Pathology and Precision Therapy, Chinese Academy of Medical Sciences (2019RU042), Hangzhou 310058, China
| | - Chaoyi Chen
- Department of Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, Zhejiang Provincial Clinical Research Center for Cancer, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Cancer Center, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Fengyan Han
- Department of Pathology and International Institutes of Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Research Unit of Intelligence Classification of Tumor Pathology and Precision Therapy, Chinese Academy of Medical Sciences (2019RU042), Hangzhou 310058, China
| | - Jingwen Deng
- Department of Pathology and International Institutes of Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Research Unit of Intelligence Classification of Tumor Pathology and Precision Therapy, Chinese Academy of Medical Sciences (2019RU042), Hangzhou 310058, China
| | - Dongdong Huang
- The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Lili Qian
- Cancer Center, Department of Pathology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, China
| | - Ming Zhu
- Department of Pathology and International Institutes of Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Research Unit of Intelligence Classification of Tumor Pathology and Precision Therapy, Chinese Academy of Medical Sciences (2019RU042), Hangzhou 310058, China
| | - Xiaohui Ma
- Pharmacology & Toxicology Research Center, The State Key Laboratory of Core Technology in Innovative Chinese Medicine, Tasly Academy, Tasly Holding Group Co., Ltd., Tianjin 300410, China
| | - Maode Lai
- Department of Pathology, Zhejiang University School of Medicine, Research Unit of Intelligence Classification of Tumor Pathology and Precision Therapy of the Chinese Academy of Medical Sciences (2019RU042), Hangzhou 310058, China; Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University, Hangzhou 310058, China
| | - Enping Xu
- Department of Pathology, Zhejiang University School of Medicine, Research Unit of Intelligence Classification of Tumor Pathology and Precision Therapy of the Chinese Academy of Medical Sciences (2019RU042), Hangzhou 310058, China; Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University, Hangzhou 310058, China.
| | - Honghe Zhang
- Department of Pathology and International Institutes of Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Research Unit of Intelligence Classification of Tumor Pathology and Precision Therapy, Chinese Academy of Medical Sciences (2019RU042), Hangzhou 310058, China; Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University, Hangzhou 310058, China.
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Jia YL, Zhao Y, Zhen SM, Cheng ZS, Zheng BY, Liu YP, Liu LH. [Effect of SLC7A11 gene downregulation on the gefitinib resistance of lung adenocarcinoma PC9/GR cells and its mechanism]. Zhonghua Zhong Liu Za Zhi 2023; 45:779-786. [PMID: 37805442 DOI: 10.3760/cma.j.cn112152-20220715-00493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To screen the key genes involved in gefitinib resistance of lung adenocarcinoma PC9/GR cells which harbored 19 exon mutation of epidermal growth factor receptor (EGFR) gene, and discuss the effect and mechanism of downregulation of solute carrier family 7 member 11 (SLC7A11) on the gefitinib resistance of PC9/GR cells. Methods: RNA microarray was conducted to detect the gene expressions in PC9 and PC9/GR cells. The differently expressed genes were screened by using limma package of R language and analyzed by Kyoto encyclopedia of genes and genomes (KEGG) pathway enrichment analysis. Western blotting was performed to determine the expression of SLC7A11 protein in PC9 and PC9/GR cells. PC9/GR cells were infected with lentivirus plasmid containing short hairpin RNA (shRNA) targeting SLC7A11 or negative control shRNA (sh-NC), respectively. Real-time quantitative polymerase chain reaction (RT-qPCR) was performed to evaluate the efficacy of shRNA on the expression of SLC7A11 mRNA. Cell counting kit-8 (CCK-8) assay was conducted to determine the suppressing effect of gefitinib on PC9/GR cells. Mito-Tracker Red CMXRos probe and malondialdehyde (MDA) assay kit were used to evaluate gefitinib-induced ferroptosis in PC9/GR cells. Immunohistochemistry (IHC) was conducted to detect the expression of SLC7A11 protein in the tumor tissues of advanced stage lung adenocarcinoma patients harboring 19 exon mutation of EGFR gene. Thirty-six advanced stage lung adenocarcinoma patients who received EGFR-tyrosihe kinase inhibitor(TKI) as first-line treatment in Fourth Hospital of Hebei Medical Unviersity were enrolled. Kaplan-Meier survival curve was drawn to analyze the correlation between SLC7A11 expression and progression-free survival (PFS) of the patients. Results: RNA array demonstrated that 2 888 genes were differently expressed between PC9 and PC9/GR cells. KEGG analysis showed that ferroptosis-related gene was one of the most enriched region of the differently expressed genes between PC9 and PC9/GR cells. These ferroptosis-related gene cohort contained 13 genes, among which SLC7A11 exhibited the most significant difference. Western blotting showed that the expression of SLC7A11 protein in PC9/GR cells was significantly higher than that in PC9 cells (0.76±0.03 vs. 0.19±0.02, P<0.001). The 50% inhibiting concentration (IC(50)) of gefitinib was 35.08 μmol/L and 64.01 μmol/L for sh-SLC7A11 and sh-NC group PC9/GR cells, respectively. PC9/GR cells in sh-SLC7A11 group exhibited significantly lower density of mitochondria fluorescence after gefitinib treatment, compared to the sh-NC group (213.77±26.50 vs. 47.88±4.55, P<0.001). In addition, PC9/GR cells in sh-SLC7A11 group exhibited significantly higher MDA after gefitinib treatment, compared to the sh-NC group [(15.43±1.60) μmol/mg vs. (82.18±7.77) μmol/mg, P<0.001]. The PFS of the patients with low expression of SLC7A11 (n=18) was significantly longer than the patients with high expression of SLC7A11 (n=18, 16.77 months vs. 9.14 months, P<0.001). Conclusion: Downregulation of SLC7A11 could increase the sensitivity of PC9/GR cells to gefitinib by promoting ferroptosis.
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Affiliation(s)
- Y L Jia
- Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Y Zhao
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - S M Zhen
- Department of Radiotherapy, Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Z S Cheng
- Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - B Y Zheng
- Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Y P Liu
- Department of Pathology, Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - L H Liu
- Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
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Ma S, Ma Y, Qi F, Lei J, Chen F, Sun W, Wang D, Zhou S, Liu Z, Lu Z, Zhang D. HSDL2 knockdown promotes the progression of cholangiocarcinoma by inhibiting ferroptosis through the P53/SLC7A11 axis. World J Surg Oncol 2023; 21:293. [PMID: 37718459 PMCID: PMC10506268 DOI: 10.1186/s12957-023-03176-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 09/09/2023] [Indexed: 09/19/2023] Open
Abstract
BACKGROUND Human hydroxysteroid dehydrogenase-like 2 (HSDL2), which regulates cancer progression, is involved in lipid metabolism. However, the role of HSDL2 in cholangiocarcinoma (CCA) and the mechanism by which it regulates CCA progression by modulating ferroptosis are unclear. METHODS HSDL2 expression levels in CCA cells and tissues were determined by quantitative real-time polymerase chain reaction (qRT-PCR), western blotting, and immunohistochemistry. The overall survival and disease-free survival of patients with high vs. low HSDL2 expression were evaluated using Kaplan-Meier curves. The proliferation, migration, and invasion of CCA cells were assessed using Cell Counting Kit-8, colony formation, 5-ethynyl-2'-deoxyuridine DNA synthesis, and transwell assays. The effect of p53 on tumor growth was explored using a xenograft mouse model. The expression of SLC7A11 in patients with CCA was analyzed using immunofluorescence. Ferroptosis levels were measured by flow cytometry, malondialdehyde assay, and glutathione assay. HSDL2-regulated signaling pathways were analyzed by transcriptome sequencing. The correlation between p53 and SLC7A11 was assessed using bioinformatics and luciferase reporter assays. RESULTS HSDL2 expression was lower in primary human CCA tissues than in matched adjacent non-tumorous bile duct tissues. HSDL2 downregulation was a significant risk factor for shorter overall survival and disease-free survival in patients with CCA. In addition, HSDL2 knockdown enhanced the proliferation, migration, and invasion of CCA cells. The transcriptome analysis of HSDL2 knockdown cells showed that differentially expressed genes were significantly enriched in the p53 signaling pathway, and HSDL2 downregulation increased SLC7A11 levels. These findings were consistent with the qRT-PCR and western blotting results. Other experiments showed that p53 expression modulated the effect of HSDL2 on CCA proliferation in vivo and in vitro and that p53 bound to the SLC7A11 promoter to inhibit ferroptosis. CONCLUSIONS HSDL2 knockdown promotes CCA progression by inhibiting ferroptosis through the p53/SLC7A11 axis. Thus, HSDL2 is a potential prognostic marker and therapeutic target for CCA.
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Affiliation(s)
- Shuoshuo Ma
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
- Liver Transplantation Center and Hepatobiliary and Pancreatic Surgery, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yang Ma
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Feiyu Qi
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Jiasheng Lei
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Fangfang Chen
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Wanliang Sun
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Dongdong Wang
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Shuo Zhou
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Zhong Liu
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Zheng Lu
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China.
| | - Dengyong Zhang
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China.
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, 77030, USA.
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Wu X, Wang S, Chen K. Bulk RNA-seq and scRNA-seq reveal SLC7A11, a key regulatory molecule of ferroptosis, is a prognostic-related biomarker and highly related to the immune system in lung adenocarcinoma. Medicine (Baltimore) 2023; 102:e34876. [PMID: 37713821 PMCID: PMC10508384 DOI: 10.1097/md.0000000000034876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 08/01/2023] [Indexed: 09/17/2023] Open
Abstract
Lung adenocarcinoma (LUAD) is the most common pathological subtype of lung cancer. Ferroptosis is an iron-dependent, non-apoptotic cell death mode, highly correlated with the tumorigenesis and progression of multiple cancers. Solute carrier family 7 member 11 (SLC7A11) maintains the anti-porter activity of cysteine and glutamate to regulate ferroptosis. We collected bulk RNA-seq and scRNA-seq from The Cancer Genome Altas and Gene Expression Omnibus databases. Then, we extracted the expression level of SLC7A11 to perform the differential expression analysis between normal tissues and LUAD tissues. Then, we applied survival, univariate, and multivariate Cox regression analyses to investigate the predictive value of SLC7A11 in LUAD. Gene set enrichment analysis was used to explore the underlying molecular mechanisms of SLC7A11 in LUAD. Finally, we analyzed the relationship of SLC7A11 to the immune status and the curative effect of immunotherapy. The expression level of SLC7A11 in LUAD tissues was markedly increased. The survival analysis, univariate and multivariate Cox regression analysis showed that SLC7A11 was a negative factor for the prognosis of LUAD patients. Gene set enrichment analysis revealed that several immune-related pathways were enriched in the low-level group. The lower SLC7A11 level has a better therapeutic effect of immunotherapy and less probability of immune escape and dysfunction. SLC7A11 was a prognostic-related biomarker and closely correlated with the immune status and therapeutic effect of immunotherapy in LUAD, which could be an effective biomarker for evaluating the prognosis and the therapeutic efficacy of immunotherapy.
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Affiliation(s)
- Xiaoyu Wu
- Department of Respiratory, Zhejiang Jinhua Guangfu Cancer Hospital, Jinhua, Zhejiang, China
| | - Sheng Wang
- Department of Respiratory, Zhejiang Jinhua Guangfu Cancer Hospital, Jinhua, Zhejiang, China
| | - Kaifang Chen
- Department of Emergency, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang, China
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