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Liao Z, Wang J, Xu M, Li X, Xu H. The role of RNA m6A demethylase ALKBH5 in the mechanisms of fibrosis. Front Cell Dev Biol 2024; 12:1447135. [PMID: 39220683 PMCID: PMC11362088 DOI: 10.3389/fcell.2024.1447135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Accepted: 08/06/2024] [Indexed: 09/04/2024] Open
Abstract
ALKBH5 is one of the demethylases involved in the regulation of RNA m6A modification. In addition to its role in the dynamic regulation of RNA m6A modification, ALKBH5 has been found to play important roles in various tissues fibrosis processes in recent years. However, the mechanisms and effects of ALKBH5 in fibrosis have been reported inconsistently. Multiple cell types, including parenchymal cells, immune cells (neutrophils and T cells), macrophages, endothelial cells, and fibroblasts, play roles in various stages of fibrosis. Therefore, this review analyzes the mechanisms by which ALKBH5 regulates these cells, its impact on their functions, and the outcomes of fibrosis. Furthermore, this review summarizes the role of ALKBH5 in fibrotic diseases such as pulmonary fibrosis, liver fibrosis, cardiac fibrosis, and renal fibrosis, and discusses various ALKBH5 inhibitors that have been discovered to date, exploring the potential of ALKBH5 as a clinical target for fibrosis.
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Affiliation(s)
| | | | | | - Xiaoyan Li
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Children’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hongming Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Children’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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2
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Wu S, Wang H, Yang Q, Liu Z, Du J, Wang L, Chen S, Lu Q, Yang DH. METTL3 regulates M6A methylation-modified EBV-pri-miR-BART3-3p to promote NK/T cell lymphoma growth. Cancer Lett 2024; 597:217058. [PMID: 38880226 DOI: 10.1016/j.canlet.2024.217058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 05/20/2024] [Accepted: 06/08/2024] [Indexed: 06/18/2024]
Abstract
OBJECTIVE N6-methyladenosine (M6A) is the most prevalent epigenetic alteration. Methyltransferase-like 3 (METTL3) is a key player in the control of M6A modification. Methyltransferase promote the processing of mature miRNA in an M6A-dependent manner, thereby participating in disease occurrence and development. However, the regulatory mechanism of M6A in NK/T cell lymphoma (NKTCL) remains unclear. PATIENTS AND METHODS We determined the expression of METTL3 and its correlation with clinicopathological features using qRT-PCR and immunohistochemistry. We evaluated the effects of METTL3 on NKTCL cells using dot blot assay, CCK8 assay and subcutaneous xenograft experiment. We then applied M6A sequencing combined with gene expression omnibus data to screen candidate targets of METTL3. Finally, we investigated the regulatory mechanism of METTL3 in NKTCL by methylated RNA immunoprecipitation and RNA immunoprecipitation (RIP) assays. RESULTS We demonstrated that METTL3 was highly expressed in NKTCL cells and tissues and indicated poor prognosis. The METTL3 expression was associated with NKTCL survival. Functionally, METTL3 promoted the proliferation capability of NKTCL cells in vitro and in vivo. Furthermore, EBV-miR-BART3-3p was identified as the downstream effector of METTL3, and silencing EBV-miR-BART3-3p inhibited the proliferation of NKTCL. Finally, we confirmed that PLCG2 as a target gene of EBVmiR-BART3-3p by relative assays. CONCLUSIONS We identified that METTL3 is significantly up-regulated in NKTCL and promotes NKTCL development. M6A modification contributes to the progression of NKTCL via the METTL3/EBV-miR-BART3-3p/PLCG2 axis. Our study is the first to report that M6A methylation has a critical role in NKTCL oncogenesis, and could be a potential target for NKTCL treatment.
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Affiliation(s)
- Shaojie Wu
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - Hua Wang
- Department of Hematologic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China.
| | - Qixuan Yang
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - Zhengyun Liu
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - Jingwen Du
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - Lei Wang
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - Shuaijun Chen
- Department of ENT&HN Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - Qisi Lu
- Department of Hematology, Foresea Life Insurance Guangzhou General Hospital, Guangzhou, 515500, China.
| | - Dong-Hua Yang
- New York College of Traditional Chinese Medicine, Mineola, NY, 11501, United States.
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Wang J, Shen Y, Zhang Y, Lin D, Wang Q, Sun X, Wei D, Shen B, Chen J, Ji Y, Fulton D, Yu Y, Chen F, Hu L. Smooth Muscle Ythdf2 Abrogation Ameliorates Pulmonary Vascular Remodeling by Regulating Myadm Transcript Stability. Hypertension 2024; 81:1785-1798. [PMID: 38832511 DOI: 10.1161/hypertensionaha.124.22801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 05/10/2024] [Indexed: 06/05/2024]
Abstract
BACKGROUND The N6-methyladenosine (m6A) modification of RNA and its regulators have important roles in the pathogenesis of pulmonary hypertension (PH). Ythdf2 (YTH N6-methyladenosine RNA binding protein 2) is best known for its role in degrading m6A-modified mRNAs such as Hmox1 mRNA, which leads to alternative activation of macrophages in PH. Recent studies have also linked Ythdf2 to the proliferation of pulmonary artery smooth muscle cells (PASMCs). However, its specific roles in PASMCs and downstream targets during the development of PH remain unclear. METHODS The expression and biological function of Ythdf2 in PASMCs were investigated in human and experimental models of PH. Smooth muscle cell-specific Ythdf2-deficient mice were used to assess the roles of Ythdf2 in PASMCs in vivo. Proteomic analysis, m6A sequencing, and RNA immunoprecipitation analysis were used to screen for potential downstream targets. RESULTS Ythdf2 was significantly upregulated in human and rodent PH-PASMCs, and smooth muscle cell-specific Ythdf2 deficiency ameliorated PASMC proliferation, right ventricular hypertrophy, pulmonary vascular remodeling, and PH development. Higher expression of Ythdf2 promoted PASMC proliferation and PH by paradoxically stabilizing Myadm mRNA in an m6A-dependent manner. Loss of Ythdf2 decreased the expression of Myadm in PASMCs and pulmonary arteries, both in vitro and in vivo. Additionally, silencing Myadm inhibited the Ythdf2-dependent hyperproliferation of PASMCs by upregulating the cell cycle kinase inhibitor p21. CONCLUSIONS We have identified a novel mechanism where the increased expression of Ythdf2 stimulates PH-PASMC proliferation through an m6A/Myadm/p21 pathway. Strategies targeting Ythdf2 in PASMCs might be useful additions to the therapeutic approach to PH.
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MESH Headings
- Animals
- Humans
- Male
- Mice
- Cell Proliferation
- Cells, Cultured
- Disease Models, Animal
- Hypertension, Pulmonary/metabolism
- Hypertension, Pulmonary/genetics
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/metabolism
- Pulmonary Artery/metabolism
- RNA Stability
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- RNA-Binding Proteins/metabolism
- RNA-Binding Proteins/genetics
- Vascular Remodeling/physiology
- Vascular Remodeling/genetics
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Affiliation(s)
- Jie Wang
- Department of Forensic Medicine (J.W., Y.S., Y.Z., D.L., Y.Y., F.C., L.H.), Nanjing Medical University, China
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine (J.W., F.C., L.H.), Nanjing Medical University, China
| | - Yueyao Shen
- Department of Forensic Medicine (J.W., Y.S., Y.Z., D.L., Y.Y., F.C., L.H.), Nanjing Medical University, China
| | - Yuhui Zhang
- Department of Forensic Medicine (J.W., Y.S., Y.Z., D.L., Y.Y., F.C., L.H.), Nanjing Medical University, China
| | - Donghai Lin
- Department of Forensic Medicine (J.W., Y.S., Y.Z., D.L., Y.Y., F.C., L.H.), Nanjing Medical University, China
| | - Qiang Wang
- Department of Rheumatology, the First Affiliated Hospital of Nanjing Medical University, China (Q.W., X.S.)
| | - Xiaoxuan Sun
- Department of Rheumatology, the First Affiliated Hospital of Nanjing Medical University, China (Q.W., X.S.)
| | - Dong Wei
- Wuxi Lung Transplantation Center, Wuxi People's Hospital Affiliated with Nanjing Medical University, China (D.W., J.C., F.C.)
| | - Bin Shen
- State Key Laboratory of Reproductive Medicine (B.S.), Nanjing Medical University, China
| | - Jingyu Chen
- Wuxi Lung Transplantation Center, Wuxi People's Hospital Affiliated with Nanjing Medical University, China (D.W., J.C., F.C.)
| | - Yong Ji
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine (Y.J.), Nanjing Medical University, China
| | - David Fulton
- Vascular Biology Center, Medical College of Georgia at Augusta University (D.F., F.C.)
| | - Yanfang Yu
- Department of Forensic Medicine (J.W., Y.S., Y.Z., D.L., Y.Y., F.C., L.H.), Nanjing Medical University, China
| | - Feng Chen
- Department of Forensic Medicine (J.W., Y.S., Y.Z., D.L., Y.Y., F.C., L.H.), Nanjing Medical University, China
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine (J.W., F.C., L.H.), Nanjing Medical University, China
- Wuxi Lung Transplantation Center, Wuxi People's Hospital Affiliated with Nanjing Medical University, China (D.W., J.C., F.C.)
- Vascular Biology Center, Medical College of Georgia at Augusta University (D.F., F.C.)
| | - Li Hu
- Department of Forensic Medicine (J.W., Y.S., Y.Z., D.L., Y.Y., F.C., L.H.), Nanjing Medical University, China
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine (J.W., F.C., L.H.), Nanjing Medical University, China
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Yang Q, Madueke-Laveaux OS, Cun H, Wlodarczyk M, Garcia N, Carvalho KC, Al-Hendy A. Comprehensive Review of Uterine Leiomyosarcoma: Pathogenesis, Diagnosis, Prognosis, and Targeted Therapy. Cells 2024; 13:1106. [PMID: 38994959 PMCID: PMC11240800 DOI: 10.3390/cells13131106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 06/14/2024] [Accepted: 06/21/2024] [Indexed: 07/13/2024] Open
Abstract
Uterine leiomyosarcoma (uLMS) is the most common subtype of uterine sarcomas. They have a poor prognosis with high rates of recurrence and metastasis. The five-year survival for uLMS patients is between 25 and 76%, with survival rates approaching 10-15% for patients with metastatic disease at the initial diagnosis. Accumulating evidence suggests that several biological pathways are involved in uLMS pathogenesis. Notably, drugs that block abnormal functions of these pathways remarkably improve survival in uLMS patients. However, due to chemotherapy resistance, there remains a need for novel drugs that can target these pathways effectively. In this review article, we provide an overview of the recent progress in ascertaining the biological functions and regulatory mechanisms in uLMS from the perspective of aberrant biological pathways, including DNA repair, immune checkpoint blockade, protein kinase and intracellular signaling pathways, and the hedgehog pathway. We review the emerging role of epigenetics and epitranscriptome in the pathogenesis of uLMS. In addition, we discuss serum markers, artificial intelligence (AI) combined with machine learning, shear wave elastography, current management and medical treatment options, and ongoing clinical trials for patients with uLMS. Comprehensive, integrated, and deeper insights into the pathobiology and underlying molecular mechanisms of uLMS will help develop novel strategies to treat patients with this aggressive tumor.
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Affiliation(s)
- Qiwei Yang
- Department of Obstetrics and Gynecology, University of Chicago, Chicago, IL 60637, USA
| | | | - Han Cun
- Department of Obstetrics and Gynecology, University of Chicago, Chicago, IL 60637, USA
| | - Marta Wlodarczyk
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland
| | - Natalia Garcia
- Greehey Children's Cancer Research Institute, University of Texas Health Science Center, San Antonio, TX 78229, USA
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Katia Candido Carvalho
- Laboratório de Ginecologia Estrutural e Molecular (LIM 58), Disciplina de Ginecologia, Departamento deObstetricia e Ginecologia, Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo (HCFMUSP), São Paulo 05403-010, Brazil
| | - Ayman Al-Hendy
- Department of Obstetrics and Gynecology, University of Chicago, Chicago, IL 60637, USA
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5
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Cao L, Han R, Zhao Y, Qin X, Li Q, Xiong H, Kong Y, Liu Z, Li Z, Dong F, Li T, Zhao X, Lei L, Zhao Q, Liu D, Wang B, Wu X. A LATS2 and ALKBH5 positive feedback loop supports their oncogenic roles. Cell Rep 2024; 43:114032. [PMID: 38568805 DOI: 10.1016/j.celrep.2024.114032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/09/2024] [Accepted: 03/18/2024] [Indexed: 04/05/2024] Open
Abstract
N(6)-methyladenosine (m6A) critically regulates RNA dynamics in various biological processes. The m6A demethylase ALKBH5 promotes tumorigenesis of glioblastoma, while the intricate web that orchestrates its regulation remains enigmatic. Here, we discover that cell density affects ALKBH5 subcellular localization and m6A dynamics. Mechanistically, ALKBH5 is phosphorylated by the large tumor suppressor kinase 2 (LATS2), preventing its nuclear export and enhancing protein stability. Furthermore, phosphorylated ALKBH5 reciprocally erases m6A from LATS2 mRNA, thereby stabilizing this transcript. Unexpectedly, LATS2 depletion suppresses glioblastoma stem cell self-renewal independent of yes-associated protein activation. Additionally, deficiency in either LATS2 or ALKBH5 phosphorylation impedes tumor progression in mouse xenograft models. Moreover, high levels of LATS2 expression and ALKBH5 phosphorylation are associated with tumor malignancy in patients with gliomas. Collectively, our study unveils an oncogenic positive feedback loop between LATS2 and ALKBH5, revealing a non-canonical branch of the Hippo pathway for RNA processing and suggesting potential anti-cancer interventions.
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Affiliation(s)
- Lei Cao
- State Key Laboratory of Experimental Hematology, the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Medical Epigenetics, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road 22, Tianjin 300070, China
| | - Ruohui Han
- Department of Endodontics and Laboratory of Stem Cells Endocrine Immunology, Tianjin Medical University School and Hospital of Stomatology, Tianjin 300070, China
| | - Yingying Zhao
- State Key Laboratory of Experimental Hematology, the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Medical Epigenetics, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road 22, Tianjin 300070, China
| | - Xiaoyang Qin
- State Key Laboratory of Experimental Hematology, the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Medical Epigenetics, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road 22, Tianjin 300070, China
| | - Qian Li
- State Key Laboratory of Experimental Hematology, the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Medical Epigenetics, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road 22, Tianjin 300070, China
| | - Hui Xiong
- Department of Immunology, Tianjin Medical University, Qixiangtai Road 22, Tianjin 300070, China
| | - Yu Kong
- State Key Laboratory of Experimental Hematology, the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Medical Epigenetics, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road 22, Tianjin 300070, China
| | - Ziyi Liu
- State Key Laboratory of Experimental Hematology, the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Medical Epigenetics, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road 22, Tianjin 300070, China
| | - Zexing Li
- State Key Laboratory of Experimental Hematology, the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Medical Epigenetics, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road 22, Tianjin 300070, China; School of Life Sciences, Tianjin University, Tianjin 300072, China
| | - Feng Dong
- State Key Laboratory of Experimental Hematology, the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Medical Epigenetics, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road 22, Tianjin 300070, China
| | - Ting Li
- State Key Laboratory of Experimental Hematology, the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Medical Epigenetics, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road 22, Tianjin 300070, China
| | - Xiujuan Zhao
- State Key Laboratory of Experimental Hematology, the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Medical Epigenetics, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road 22, Tianjin 300070, China
| | - Lei Lei
- State Key Laboratory of Experimental Hematology, the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Medical Epigenetics, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road 22, Tianjin 300070, China
| | - Qian Zhao
- State Key Laboratory of Experimental Hematology, the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Medical Epigenetics, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road 22, Tianjin 300070, China
| | - Dayong Liu
- Department of Endodontics and Laboratory of Stem Cells Endocrine Immunology, Tianjin Medical University School and Hospital of Stomatology, Tianjin 300070, China
| | - Baofeng Wang
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xudong Wu
- State Key Laboratory of Experimental Hematology, the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Medical Epigenetics, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road 22, Tianjin 300070, China; Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.
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Kobayashi A, Kitagawa Y, Nasser A, Wakimoto H, Yamada K, Tanaka S. Emerging Roles and Mechanisms of RNA Modifications in Neurodegenerative Diseases and Glioma. Cells 2024; 13:457. [PMID: 38474421 DOI: 10.3390/cells13050457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/19/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024] Open
Abstract
Despite a long history of research, neurodegenerative diseases and malignant brain tumor gliomas are both considered incurable, facing challenges in the development of treatments. Recent evidence suggests that RNA modifications, previously considered as static components of intracellular RNAs, are in fact dynamically regulated across various RNA species in cells and play a critical role in major biological processes in the nervous system. Innovations in next-generation sequencing have enabled the accurate detection of modifications on bases and sugars within various RNA molecules. These RNA modifications influence the stability and transportation of RNA, and crucially affect its translation. This review delves into existing knowledge on RNA modifications to offer a comprehensive inventory of these modifications across different RNA species. The detailed regulatory functions and roles of RNA modifications within the nervous system are discussed with a focus on neurodegenerative diseases and gliomas. This article presents a comprehensive overview of the fundamental mechanisms and emerging roles of RNA modifications in these diseases, which can facilitate the creation of innovative diagnostics and therapeutics for these conditions.
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Affiliation(s)
- Ami Kobayashi
- Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Yosuke Kitagawa
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
- Translational Neuro-Oncology Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Ali Nasser
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
- Translational Neuro-Oncology Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Hiroaki Wakimoto
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
- Translational Neuro-Oncology Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Keisuke Yamada
- Department of Neurosurgery, The University of Tokyo, Tokyo 113-0075, Japan
| | - Shota Tanaka
- Department of Neurosurgery, The University of Tokyo, Tokyo 113-0075, Japan
- Department of Neurosurgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
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Chen SY, Lin CC, Wu J, Chen Y, Wang YE, Setayeshpour Y, Mestre A, Chi JT. NINJ1 regulates ferroptosis via xCT antiporter interaction and CoA modulation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.22.581432. [PMID: 38464226 PMCID: PMC10925083 DOI: 10.1101/2024.02.22.581432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Ninjurin-1 (NINJ1), initially identified as a stress-induced protein in neurons, recently emerged as a key mediator of plasma membrane rupture during apoptosis, necrosis, and pyroptosis. However, its involvement in ferroptosis remains unknown. Here, we demonstrate that NINJ1 also plays a crucial role in ferroptosis, but through a distinct mechanism. NINJ1 knockdown significantly protected cancer cells against ferroptosis induced by xCT inhibitors but no other classes of ferroptosis-inducing compounds (FINs). Glycine, known to inhibit canonical NINJ1-mediated membrane rupture in other cell deaths, had no impact on ferroptosis. A compound screen revealed that NINJ1-mediated ferroptosis protection can be abolished by pantothenate kinase inhibitor (PANKi), buthionine sulfoximine (BSO), and diethylmaleate (DEM). These results suggest that this ferroptosis protection is mediated via Coenzyme A (CoA) and glutathione (GSH), both of which were found to be elevated upon NINJ1 knockdown. Furthermore, we discovered that NINJ1 interacts with the xCT antiporter, which is responsible for cystine uptake for the biosynthesis of CoA and GSH. The removal of NINJ1 increased xCT levels and stability, enhanced cystine uptake, and contributed to elevated CoA and GSH levels, collectively contributing to ferroptosis protection. These findings reveal that NINJ1 regulates ferroptosis via a non-canonical mechanism, distinct from other regulated cell deaths.
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Affiliation(s)
- Ssu-Yu Chen
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Chao-Chieh Lin
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Jianli Wu
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Yubin Chen
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Ya-En Wang
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Yasaman Setayeshpour
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Alexander Mestre
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Jen-Tsan Chi
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
- Center for Advanced Genomic Technologies, Duke University School of Medicine, Durham, NC 27710, USA
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8
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Xie GS, Richard HT. m 6A mRNA Modifications in Glioblastoma: Emerging Prognostic Biomarkers and Therapeutic Targets. Cancers (Basel) 2024; 16:727. [PMID: 38398118 PMCID: PMC10886660 DOI: 10.3390/cancers16040727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/06/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Glioblastoma, the most common and aggressive primary brain tumor, is highly invasive and neurologically destructive. The mean survival for glioblastoma patients is approximately 15 months and there is no effective therapy to significantly increase survival times to date. The development of effective therapy including mechanism-based therapies is urgently needed. At a molecular biology level, N6-methyladenine (m6A) mRNA modification is the most abundant posttranscriptional RNA modification in mammals. Recent studies have shown that m6A mRNA modifications affect cell survival, cell proliferation, invasion, and immune evasion of glioblastoma. In addition, m6A mRNA modifications are critical for glioblastoma stem cells, which could initiate the tumor and lead to therapy resistance. These findings implicate the function of m6A mRNA modification in tumorigenesis and progression, implicating its value in prognosis and therapies of human glioblastoma. This review focuses on the potential clinical significance of m6A mRNA modifications in prognostic and therapeutics of glioblastoma. With the identification of small-molecule compounds that activate or inhibit components of m6A mRNA modifications, a promising novel approach for glioblastoma therapy is emerging.
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Affiliation(s)
- Gloria S. Xie
- Martel College, Rice University, Houston, TX 77005, USA;
| | - Hope T. Richard
- Department of Pathology, School of Medicine, Virginia Commonwealth University, Richmond, VA 23219, USA
- VCU Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23219, USA
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Gencel-Augusto J, Bivona TG. Unlocking the EGFR-mediated epitranscriptome: A pathway to novel therapies. Mol Cell 2023; 83:4199-4201. [PMID: 38065059 DOI: 10.1016/j.molcel.2023.10.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 10/31/2023] [Accepted: 10/31/2023] [Indexed: 12/18/2023]
Abstract
In this issue, Lv et al.1 explore EGFR-driven epitranscriptomic reprogramming in glioblastoma, revealing the pivotal role of the EGFR-ALKBH5-GCLM axis in ferroptosis protection. Their findings offer mechanistic insight and therapeutic strategies involving novel combination targets to enhance tumor responses.
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Affiliation(s)
- Jovanka Gencel-Augusto
- Department of Medicine, University of California, San Francisco (UCSF), San Francisco, CA 94158, USA; UCSF Hellen Diller Comprehensive Cancer Center, San Francisco, CA 94158, USA
| | - Trever G Bivona
- Department of Medicine, University of California, San Francisco (UCSF), San Francisco, CA 94158, USA; UCSF Hellen Diller Comprehensive Cancer Center, San Francisco, CA 94158, USA; Chan-Zuckerberg Biohub, San Francisco, CA 94158, USA.
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