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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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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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