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Tan RZ, Jia J, Li T, Wang L, Kantawong F. A systematic review of epigenetic interplay in kidney diseases: Crosstalk between long noncoding RNAs and methylation, acetylation of chromatin and histone. Biomed Pharmacother 2024; 176:116922. [PMID: 38870627 DOI: 10.1016/j.biopha.2024.116922] [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: 04/10/2024] [Revised: 06/06/2024] [Accepted: 06/09/2024] [Indexed: 06/15/2024] Open
Abstract
The intricate crosstalk between long noncoding RNAs (lncRNAs) and epigenetic modifications such as chromatin/histone methylation and acetylation offer new perspectives on the pathogenesis and treatment of kidney diseases. lncRNAs, a class of transcripts longer than 200 nucleotides with no protein-coding potential, are now recognized as key regulatory molecules influencing gene expression through diverse mechanisms. They modulate the epigenetic modifications by recruiting or blocking enzymes responsible for adding or removing methyl or acetyl groups, such as DNA, N6-methyladenosine (m6A) and histone methylation and acetylation, subsequently altering chromatin structure and accessibility. In kidney diseases such as acute kidney injury (AKI), chronic kidney disease (CKD), diabetic nephropathy (DN), glomerulonephritis (GN), and renal cell carcinoma (RCC), aberrant patterns of DNA/RNA/histone methylation and acetylation have been associated with disease onset and progression, revealing a complex interplay with lncRNA dynamics. Recent studies have highlighted how lncRNAs can impact renal pathology by affecting the expression and function of key genes involved in cell cycle control, fibrosis, and inflammatory responses. This review will separately address the roles of lncRNAs and epigenetic modifications in renal diseases, with a particular emphasis on elucidating the bidirectional regulatory effects and underlying mechanisms of lncRNAs in conjunction with DNA/RNA/histone methylation and acetylation, in addition to the potential exacerbating or renoprotective effects in renal pathologies. Understanding the reciprocal relationships between lncRNAs and epigenetic modifications will not only shed light on the molecular underpinnings of renal pathologies but also present new avenues for therapeutic interventions and biomarker development, advancing precision medicine in nephrology.
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Affiliation(s)
- Rui-Zhi Tan
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand; Research Center of Integrated Traditional Chinese and Western Medicine, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Jian Jia
- Research Center of Integrated Traditional Chinese and Western Medicine, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Tong Li
- Research Center of Integrated Traditional Chinese and Western Medicine, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Li Wang
- Research Center of Integrated Traditional Chinese and Western Medicine, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China.
| | - Fahsai Kantawong
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand.
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Ding M, Yan J, Chen Y, Liu J, Chao G, Zhang S. Changes in M6A methylation: A key factor in the vicious cycle of flora -gut aging. Ageing Res Rev 2024; 98:102351. [PMID: 38820855 DOI: 10.1016/j.arr.2024.102351] [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: 12/09/2023] [Revised: 05/16/2024] [Accepted: 05/27/2024] [Indexed: 06/02/2024]
Abstract
The aging process significantly impacts the gastrointestinal tract and various bodily systems, exacerbating age-related diseases. Research suggests a correlation between an imbalance in intestinal flora and gut aging, yet the precise mechanism remains incompletely elucidated. Epigenetic modifications, particularly m6A methylation, play a pivotal role in driving aging and are closely associated with gut aging. Maintaining a healthy balance of intestinal microbes is contingent upon m6A methylation, which is believed to be crucial in the vicious cycle of gut aging and intestinal flora. This article highlights the importance of m6A methylation in the nexus between gut aging and flora. It proposes the potential for targeted m6A methylation to break the vicious cycle of gut aging and flora imbalance, offering novel perspectives on attenuating or reversing gut aging.
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Affiliation(s)
- Menglu Ding
- The Second Affiliated Hospital of Zhejiang Chinese Medical University (The Xin Hua Hospital of Zhejiang Province), Hangzhou, PR China; Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, PR China
| | - Junbin Yan
- The Second Affiliated Hospital of Zhejiang Chinese Medical University (The Xin Hua Hospital of Zhejiang Province), Hangzhou, PR China; Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, PR China
| | - Yuxuan Chen
- The Second Affiliated Hospital of Zhejiang Chinese Medical University (The Xin Hua Hospital of Zhejiang Province), Hangzhou, PR China; Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, PR China
| | - Jinguo Liu
- The Second Affiliated Hospital of Zhejiang Chinese Medical University (The Xin Hua Hospital of Zhejiang Province), Hangzhou, PR China; Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, PR China
| | - Guanqun Chao
- The Second Affiliated Hospital of Zhejiang Chinese Medical University (The Xin Hua Hospital of Zhejiang Province), Hangzhou, PR China; Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, PR China.
| | - Shuo Zhang
- The Second Affiliated Hospital of Zhejiang Chinese Medical University (The Xin Hua Hospital of Zhejiang Province), Hangzhou, PR China; Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, PR China.
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Hua M, Zhai X, Chen Y, Yin D. METTL3-mediated m6A modification of CDCA7 mRNA promotes COAD progression. Pathol Res Pract 2024; 260:155437. [PMID: 38959625 DOI: 10.1016/j.prp.2024.155437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/17/2024] [Accepted: 06/27/2024] [Indexed: 07/05/2024]
Abstract
BACKGROUND Colon adenocarcinoma (COAD) represents a frequent malignant tumor of the digestive system with high mortality and poor prognosis. As a prevalent internal mRNA modification in eukaryotic cells, N6-methyladenosine (m6A) has been reported to participate in tumor malignancy. This study is designed to explore the role and mechanism of Methyltransferase-like 3 (METTL3) in the progression of COAD. METHODS In this research, the GEPIA database was applied to analyze the relationship between COAD and cell division cycle-associated protein 7 (CDCA7) or METTL3. Cell viability, cell cycle progression, apoptosis, migration, and invasion were detected by Cell Counting Kit-8 (CCK-8), flow cytometry, transwell assays. The glycolysis level was detected via specific kits. CDCA7, E-cadherin, N-cadherin, and METTL3 protein levels were determined by western blot assay. The biological role of CDCA7 on COAD tumor growth was examined by the xenograft tumor model in vivo. After RBPsuite analysis, the interaction between METTL3 and CDCA7 was verified by methylated RNA immunoprecipitation (MeRIP). RESULTS METTL3 and CDCA7 were highly expressed in COAD tissues and cells. Furthermore, the silencing of CDCA7 hindered COAD cell proliferation, migration, invasion, glycolysis, EMT, and promoted apoptosis in vitro, as well as retarded tumor growth in vivo. At the molecular level, METTL3 might enhance the stability of CDCA7 mRNA via m6A methylation. CONCLUSION METTL3 contributes to the malignant progression of COAD cells partly by regulating the stability of CDCA7 mRNA, providing a promising therapeutic target for COAD treatment.
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Affiliation(s)
- Mei Hua
- Department of Oncology, Nantong First People's Hospital and Affiliated Hospital 2 of Nantong University, Nantong 226000, China
| | - Xiaolu Zhai
- Department of Oncology, Nantong First People's Hospital and Affiliated Hospital 2 of Nantong University, Nantong 226000, China
| | - Ying Chen
- Department of Oncology, Nantong First People's Hospital and Affiliated Hospital 2 of Nantong University, Nantong 226000, China
| | - Dian Yin
- Department of Oncology, Nantong First People's Hospital and Affiliated Hospital 2 of Nantong University, Nantong 226000, China.
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Chen Q, Ao L, Zhao Q, Tang L, Xiong Y, Yuan Y, Wu X, Xing W, Li Z, Guo W, Liang H, Zheng S, Lian Q, Lu D, Wan W, Xu X. WTAP/YTHDF1-mediated m 6A modification amplifies IFN-γ-induced immunosuppressive properties of human MSCs. J Adv Res 2024:S2090-1232(24)00256-X. [PMID: 38944238 DOI: 10.1016/j.jare.2024.06.019] [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: 05/14/2024] [Accepted: 06/21/2024] [Indexed: 07/01/2024] Open
Abstract
INTRODUCTION The immunosuppressive capacity of mesenchymal stem cells (MSCs) is dependent on the "license" of several pro-inflammatory factors to express immunosuppressive molecular profiles, which determines the therapeutic efficacy of MSCs in immune-mediated inflammatory diseases. Of those, interferon-γ (IFN-γ) is a key inducer for the expression of immunosuppressive molecular profiles; however, the mechanism underlying this effect is unknown. OBJECTIVES To elucidate the regulation mechanism and biological functions of N6-methyladenosine (m6A) modification in the immunosuppressive functions by the IFN-γ-licensing MSCs. METHODS Epitranscriptomic microarray analysis and MeRIP-qPCR assay were performed to identify the regulatory effect of WTAP in the IFN-γ-licensing MSCs. RIP-qPCR, western blot, qRT-PCR and RNA stability assays were used to determine the regulation of WTAP/m6A/YTHDF1 signaling axis in the expression of immunosuppressive molecules. Further, functional capacity of T cells was tested using flow cytometry, and both DSS-induced colitis mice and CIA mice were constructed to clarify the effect of WTAP and YTHDF1 in MSC-mediated immunosuppression. RESULTS We identified that IFN-γ increased the m6A methylation levels of immunosuppressive molecules, while WTAP deficiency abolished the IFN-γ-induced promotion of m6A modification. IFN-γ activated ERK signaling, which induced WTAP phosphorylation. Additionally, the stabilization of WTAP post-transcriptionally increased the mRNA expression of immunosuppressive molecules (IDO1, PD-L1, ICAM1, and VCAM1) in an m6A-YTHDF1-dependent manner; this effect further impacted the immunosuppressive capacity of IFN-γ licensing MSCs on activated T cells. Notably, WTAP/YTHDF1 overexpression enhanced the therapeutic efficacy of IFN-γ licensing MSCs and restructures the ecology of inflammation in both colitis and arthritis models. CONCLUSION Our results showed that m6A modification of IDO1, PD-L1, ICAM1, and VCAM1 mRNA mediated by WTAP-YTHDF1 is involved in the regulation of IFN-γ licensing MSCs immunosuppressive abilities, and shed a light to enhance the clinical therapeutic potential of IFN-γ-licensing MSCs.
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Affiliation(s)
- Quan Chen
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China; Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming 650500, China
| | - Luoquan Ao
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Qing Zhao
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Lu Tang
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Yanli Xiong
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China; Cancer Center, Daping Hospital, Army Medical University, Chongqing, China, No.10 Changjiang Zhi Rd, Yuzhong District, Chongqing 400042, China
| | - Yuchuan Yuan
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Xiaofeng Wu
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Wei Xing
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Zhan Li
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Wei Guo
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Huaping Liang
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Songguo Zheng
- Department of Immunology, School of Cell and Gene Therapy, Songjiang Research Institute, Shanghai Songjiang District Central Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201600, China
| | - Qizhou Lian
- Faculty of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518000, China; Cord Blood Bank, Guangzhou Institute of Eugenics and Perinatology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510000, China; State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong SAR 999077, China
| | - Di Lu
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming 650500, China
| | - Weijun Wan
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China.
| | - Xiang Xu
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China; Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming 650500, China; Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China.
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Bove G, Crepaldi M, Amin S, Megchelenbrink WL, Nebbioso A, Carafa V, Altucci L, Del Gaudio N. The m 6A-independent role of epitranscriptomic factors in cancer. Int J Cancer 2024. [PMID: 38935523 DOI: 10.1002/ijc.35067] [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: 04/09/2024] [Revised: 05/27/2024] [Accepted: 05/29/2024] [Indexed: 06/29/2024]
Abstract
Protein function alteration and protein mislocalization are cancer hallmarks that drive oncogenesis. N6-methyladenosine (m6A) deposition mediated by METTL3, METTL16, and METTL5 together with the contribution of additional subunits of the m6A system, has shown a dramatic impact on cancer development. However, the cellular localization of m6A proteins inside tumor cells has been little studied so far. Interestingly, recent evidence indicates that m6A methyltransferases are not always confined to the nucleus, suggesting that epitranscriptomic factors may also have multiple oncogenic roles beyond m6A that still represent an unexplored field. To date novel epigenetic drugs targeting m6A modifiers, such as METTL3 inhibitors, are entering into clinical trials, therefore, the study of the potential onco-properties of m6A effectors beyond m6A is required. Here we will provide an overview of methylation-independent functions of the m6A players in cancer, describing the molecular mechanisms involved and the future implications for therapeutics.
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Affiliation(s)
- Guglielmo Bove
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Marco Crepaldi
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Sajid Amin
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Wouter Leonard Megchelenbrink
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
- Prinses Máxima Centrum, Utrecht, The Netherlands
| | - Angela Nebbioso
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
- Program of Medical Epigenetics, Vanvitelli Hospital, Naples, Italy
| | - Vincenzo Carafa
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
- BIOGEM, Via Camporeale, Ariano Irpino, Italy
| | - Lucia Altucci
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
- Prinses Máxima Centrum, Utrecht, The Netherlands
- BIOGEM, Via Camporeale, Ariano Irpino, Italy
- IEOS-CNR Institute for Endocrinology and Oncology "Gaetano Salvatore", Naples, Italy
| | - Nunzio Del Gaudio
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
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Xu H, Zheng Y, Wu J, Zhang R, Zhao Q, Chen S, Peng W, Cai D, Gao Y, Chen X, Li D, Yuan S, Li G, Nan A. circSORBS1 inhibits lung cancer progression by sponging miR-6779-5p and directly binding RUFY3 mRNA. J Transl Med 2024; 22:590. [PMID: 38915053 PMCID: PMC11197270 DOI: 10.1186/s12967-024-05423-0] [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: 05/07/2024] [Accepted: 06/19/2024] [Indexed: 06/26/2024] Open
Abstract
Lung cancer is the primary cause of cancer-related death worldwide, and its global incidence and mortality rates remain high. The differential expression of circular RNAs (circRNAs) can affect the development of cancer, but the mechanisms by which circRNAs regulate lung cancer progression remain unclear. In this study, we identified circSORBS1, a circRNA that has not been previously described in lung cancer and is significantly underexpressed in lung cancer tissues, blood and cell lines, and the low expression of circSORBS1 correlated with tumour grade and prognosis. In vitro and in vivo functional experiments revealed that circSORBS1 overexpression inhibited cell proliferation and migration while enhancing apoptosis. Mechanistically, circSORBS1 acts as a sponge for miR-6779-5p, indirectly inhibiting RUFY3 mRNA degradation. Simultaneously, it binds to RUFY3 mRNA to enhance its stability. This dual regulatory mechanism leads to an increase in RUFY3 protein levels, which ultimately activates the YWHAE/BAD/BCL2 apoptotic signalling pathway and suppresses lung cancer progression. Our findings not only increase the knowledge about the regulatory pattern of circRNA expression but also provide new insights into the mechanisms by which circRNAs regulate lung cancer development.
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Affiliation(s)
- Haotian Xu
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Yue Zheng
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Jiaxi Wu
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Ruirui Zhang
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Qingyun Zhao
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Sixian Chen
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Wenyi Peng
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Dunyu Cai
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Yihong Gao
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Xingcai Chen
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Deqing Li
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Shengyi Yuan
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China
| | - Gang Li
- School of Public Health, Guangxi Medical University, Nanning, 530021, China.
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China.
| | - Aruo Nan
- School of Public Health, Guangxi Medical University, Nanning, 530021, China.
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, China.
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Xie D, Yang K, Xu Y, Li Y, Liu C, Dong Y, Chi J, Yin X. N6-methyladenosine demethylase fat mass and obesity-associated protein suppresses hyperglycemia-induced endothelial cell injury by inhibiting reactive oxygen species formation via autophagy promotion. J Diabetes Complications 2024; 38:108801. [PMID: 38935979 DOI: 10.1016/j.jdiacomp.2024.108801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 06/01/2024] [Accepted: 06/16/2024] [Indexed: 06/29/2024]
Abstract
INTRODUCTION Hyperglycemia-induced endothelial cell injury is one of the main causes of diabetic vasculopathy. Fat mass and obesity-associated protein (FTO) was the first RNA N6-methyladenosine (m6A) demethylase identified; it participates in the pathogenesis of diabetes. However, the role of FTO in hyperglycemia-induced vascular endothelial cell injury remains unclear. MATERIALS AND METHODS The effects of FTO on cellular m6A, autophagy, oxidative stress, proliferation, and cytotoxicity were explored in human umbilical vein endothelial cells (HUVECs) treated with high glucose (33.3 mmol/mL) after overexpression or pharmacological inhibition of FTO. MeRIP-qPCR and RNA stability assays were used to explore the molecular mechanisms by which FTO regulates autophagy. RESULTS High glucose treatment increased m6A levels and reduced FTO protein expression in HUVECs. Wild-type overexpression of FTO markedly inhibited reactive oxygen species generation by promoting autophagy, increasing endothelial cell proliferation, and decreasing the cytotoxicity of high glucose concentrations. The pharmacological inhibition of FTO showed the opposite results. Mechanistically, we identified Unc-51-like kinase 1 (ULK1), a gene responsible for autophagosome formation, as a downstream target of FTO-mediated m6A modification. FTO overexpression demethylated ULK1 mRNA and inhibited its degradation in an m6A-YTHDF2-dependent manner, leading to autophagy activation. CONCLUSIONS Our study demonstrates the functional importance of FTO-mediated m6A modification in alleviating endothelial cell injury under high glucose conditions and indicates that FTO may be a novel therapeutic target for diabetic vascular complications.
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Affiliation(s)
- Di Xie
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China; Department of Cardiology, Central Hospital of Dalian University of Technology, Dalian, China
| | - Kelaier Yang
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China; Department of Endocrinology and Metabolism, Shenzhen University General Hospital, Shenzhen, China
| | - Yang Xu
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yang Li
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chunnan Liu
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yanghong Dong
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jinyu Chi
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
| | - Xinhua Yin
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China; Department of Cardiology, Shenzhen University General Hospital, Shenzhen, China.
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Song Y, Cui J, Zhu J, Kim B, Kuo ML, Potts PR. RNATACs: Multispecific small molecules targeting RNA by induced proximity. Cell Chem Biol 2024; 31:1101-1117. [PMID: 38876100 DOI: 10.1016/j.chembiol.2024.05.006] [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: 03/23/2024] [Revised: 05/09/2024] [Accepted: 05/22/2024] [Indexed: 06/16/2024]
Abstract
RNA-targeting small molecules (rSMs) have become an attractive modality to tackle traditionally undruggable proteins and expand the druggable space. Among many innovative concepts, RNA-targeting chimeras (RNATACs) represent a new class of multispecific, induced proximity small molecules that act by chemically bringing RNA targets into proximity with an endogenous RNA effector, such as a ribonuclease (RNase). Depending on the RNA effector, RNATACs can alter the stability, localization, translation, or splicing of the target RNA. Although still in its infancy, this new modality has the potential for broad applications in the future to treat diseases with high unmet need. In this review, we discuss potential advantages of RNATACs, recent progress in the field, and challenges to this cutting-edge technology.
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Affiliation(s)
- Yan Song
- Induced Proximity Platform, Amgen Research, Thousand Oaks, CA 91320, USA.
| | - Jia Cui
- Induced Proximity Platform, Amgen Research, Thousand Oaks, CA 91320, USA
| | - Jiaqiang Zhu
- Induced Proximity Platform, Amgen Research, Thousand Oaks, CA 91320, USA
| | - Boseon Kim
- Induced Proximity Platform, Amgen Research, Thousand Oaks, CA 91320, USA
| | - Mei-Ling Kuo
- Induced Proximity Platform, Amgen Research, Thousand Oaks, CA 91320, USA
| | - Patrick Ryan Potts
- Induced Proximity Platform, Amgen Research, Thousand Oaks, CA 91320, USA.
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Liu X, Chen W, Li K, Sheng J. RNA N6-methyladenosine methylation in influenza A virus infection. Front Microbiol 2024; 15:1401997. [PMID: 38957616 PMCID: PMC11217485 DOI: 10.3389/fmicb.2024.1401997] [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: 03/16/2024] [Accepted: 05/30/2024] [Indexed: 07/04/2024] Open
Abstract
Influenza A virus (IAV) is a negative-sense single-stranded RNA virus that causes acute lung injury and acute respiratory distress syndrome, posing a serious threat to both animal and human health. N6-methyladenosine (m6A), a prevalent and abundant post-transcriptional methylation of RNA in eukaryotes, plays a crucial regulatory role in IAV infection by altering viral RNA and cellular transcripts to affect viral infection and the host immune response. This review focuses on the molecular mechanisms underlying m6A modification and its regulatory function in the context of IAV infection and the host immune response. This will provide a better understanding of virus-host interactions and offer insights into potential anti-IAV strategies.
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Affiliation(s)
- Xueer Liu
- Department of Microbiology and Immunology, Guangdong Provincial Key Laboratory of Infectious Disease and Molecular Immunopathology, Shantou University Medical College, Shantou, Guangdong, China
| | - Weiqiang Chen
- Department of Neurosurgery, First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Kangsheng Li
- Department of Microbiology and Immunology, Guangdong Provincial Key Laboratory of Infectious Disease and Molecular Immunopathology, Shantou University Medical College, Shantou, Guangdong, China
| | - Jiangtao Sheng
- Department of Microbiology and Immunology, Guangdong Provincial Key Laboratory of Infectious Disease and Molecular Immunopathology, Shantou University Medical College, Shantou, Guangdong, China
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Ning K, Zhao J, Feng Z, Park SY, McFarlin S, Cheng F, Yan Z, Wang J, Qiu J. N6-methyladenosine modification of a parvovirus-encoded small noncoding RNA facilitates viral DNA replication through recruiting Y-family DNA polymerases. Proc Natl Acad Sci U S A 2024; 121:e2320782121. [PMID: 38875150 PMCID: PMC11194592 DOI: 10.1073/pnas.2320782121] [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: 11/27/2023] [Accepted: 05/14/2024] [Indexed: 06/16/2024] Open
Abstract
Human bocavirus 1 (HBoV1) is a human parvovirus that causes lower respiratory tract infections in young children. It contains a single-stranded (ss) DNA genome of ~5.5 kb that encodes a small noncoding RNA of 140 nucleotides known as bocavirus-encoded small RNA (BocaSR), in addition to viral proteins. Here, we determined the secondary structure of BocaSR in vivo by using DMS-MaPseq. Our findings reveal that BocaSR undergoes N6-methyladenosine (m6A) modification at multiple sites, which is critical for viral DNA replication in both dividing HEK293 cells and nondividing cells of the human airway epithelium. Mechanistically, we found that m6A-modified BocaSR serves as a mediator for recruiting Y-family DNA repair DNA polymerase (Pol) η and Pol κ likely through a direct interaction between BocaSR and the viral DNA replication origin at the right terminus of the viral genome. Thus, this report represents direct involvement of a viral small noncoding RNA in viral DNA replication through m6A modification.
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Affiliation(s)
- Kang Ning
- Department of Microbiology, Molecular Genetics and Immunology, University of KansasMedical Center, Kansas City, KS66160
| | - Junxing Zhao
- Department of Medicinal Chemistry, University of Kansas, Lawrence, KS66045
- Section of Genetic Medicine, Department of Medicine, Biological Sciences Division, University of Chicago, Chicago, IL60637
| | - Zehua Feng
- Department of Anatomy and Cell Biology, University of Iowa, Iowa City, IA52242
| | - Soo Yeun Park
- Department of Anatomy and Cell Biology, University of Iowa, Iowa City, IA52242
| | - Shane McFarlin
- Department of Microbiology, Molecular Genetics and Immunology, University of KansasMedical Center, Kansas City, KS66160
| | - Fang Cheng
- Department of Microbiology, Molecular Genetics and Immunology, University of KansasMedical Center, Kansas City, KS66160
| | - Ziying Yan
- Department of Anatomy and Cell Biology, University of Iowa, Iowa City, IA52242
| | - Jingxin Wang
- Department of Medicinal Chemistry, University of Kansas, Lawrence, KS66045
- Section of Genetic Medicine, Department of Medicine, Biological Sciences Division, University of Chicago, Chicago, IL60637
| | - Jianming Qiu
- Department of Microbiology, Molecular Genetics and Immunology, University of KansasMedical Center, Kansas City, KS66160
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11
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Mehravar M, Wong JJL. Interplay between N 6-adenosine RNA methylation and mRNA splicing. Curr Opin Genet Dev 2024; 87:102211. [PMID: 38838495 DOI: 10.1016/j.gde.2024.102211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 05/11/2024] [Accepted: 05/17/2024] [Indexed: 06/07/2024]
Abstract
N6-methyladenosine (m6A) is the most abundant modification to mRNAs. Loss-of-function studies of main m6A regulators have indicated the role of m6A in pre-mRNA splicing. Recent studies have reported the role of splicing in preventing m6A deposition. Understanding the interplay between m6A and mRNA splicing holds the potential to clarify the significance of these fundamental molecular mechanisms in cell development and function, thereby shedding light on their involvement in the pathogenesis of myriad diseases.
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Affiliation(s)
- Majid Mehravar
- Epigenetics and RNA Biology Laboratory, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia
| | - Justin J-L Wong
- Epigenetics and RNA Biology Laboratory, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia.
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12
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Wang S, Yang Y, Jiang X, Zheng X, Wei Q, Dai W, Zhang X. Nurturing gut health: role of m6A RNA methylation in upholding the intestinal barrier. Cell Death Discov 2024; 10:271. [PMID: 38830900 PMCID: PMC11148167 DOI: 10.1038/s41420-024-02043-x] [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: 01/11/2024] [Revised: 05/19/2024] [Accepted: 05/22/2024] [Indexed: 06/05/2024] Open
Abstract
The intestinal lumen acts as a critical interface connecting the external environment with the body's internal state. It's essential to prevent the passage of harmful antigens and bacteria while facilitating nutrient and water absorption. The intestinal barriers encompass microbial, mechanical, immunological, and chemical elements, working together to maintain intestinal balance. Numerous studies have associated m6A modification with intestinal homeostasis. This review comprehensively outlines potential mechanisms through which m6A modification could initiate, exacerbate, or sustain barrier damage from an intestinal perspective. The pivotal role of m6A modification in preserving intestinal equilibrium provides new insights, guiding the exploration of m6A modification as a target for optimizing preventive and therapeutic strategies for intestinal homeostasis.
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Affiliation(s)
| | - Yuzhong Yang
- Department of Pathology, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
| | - Xiaohan Jiang
- Department of Pathology, Liuzhou People's Hospital Affiliated to Guangxi Medical University, Liuzhou, Guangxi, China
| | - Xiang Zheng
- Department of Pathology, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
| | - Qiufang Wei
- Department of Pathology, Liuzhou People's Hospital Affiliated to Guangxi Medical University, Liuzhou, Guangxi, China
| | - Wenbin Dai
- Department of Pathology, Liuzhou People's Hospital Affiliated to Guangxi Medical University, Liuzhou, Guangxi, China.
| | - Xuemei Zhang
- Department of Pathology, Liuzhou People's Hospital Affiliated to Guangxi Medical University, Liuzhou, Guangxi, China.
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13
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Bi S, Han B, Fan H, Liu Y, Cui X. Mitochondria-Related Gene MAOB is a Key Biomarker of Osteoarthritis and Inhibition of Its Expression Reduces LPS-induced Chondrocyte Damage. Biochem Genet 2024; 62:2314-2331. [PMID: 37651071 DOI: 10.1007/s10528-023-10486-7] [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: 05/11/2023] [Accepted: 08/06/2023] [Indexed: 09/01/2023]
Abstract
The mitochondria are an important organelle in cells responsible for producing energy, and its abnormal function is closely related to the occurrence and development of osteoarthritis. Finding key genes associated with mitochondrial dysfunction in osteoarthritis can provide new ideas for the study of its pathogenesis. Firstly, 371 differential expressed genes (DEGs) were obtained through bioinformatics analysis of the GSE12021 and GSE55235 datasets in the GEO database, and 24 mitochondria-related DEGs (Mito-DEGs) were obtained by crossing differential genes with mitochondrial related genes. Next, KEGG and GO analysis of Mito-DEGs showed that upregulated Mito-DEGs were mainly enriched in small molecule catabolic process and tryptophan metabolism, while downregulated Mito-DEGs were mainly enriched in acetyl-CoA metabolic process and fatty acid biosynthesis. Furthermore, the key genes ME2 and MAOB were obtained through protein-protein interaction network analysis and lasso cox analysis of the 24 Mito-DEGs. In addition, the comparison results of immune cell scores showed differences between T cells CD4 memory resting, T cells regulatory (Tregs), Mast cells resting, and Mast cells activated in the OA group and the control group. More importantly, the potential regulatory mechanisms of key genes were studied through GSEA analysis and their correlation with immune infiltrating cells, immune checkpoints, m6A, and ferroptosis. Finally, in LPS-induced C28/I2 cells, silencing MAOB reduced inflammation injury and inhibited mitochondrial damage. Our research findings suggest that MAOB may hold potential as a target for the diagnosis and treatment of osteoarthritis.
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Affiliation(s)
- Shiqi Bi
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Bo Han
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Hongjuan Fan
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Yongming Liu
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China.
| | - Xuewen Cui
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China.
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14
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Chao M, Wang M, Han H, Liu Y, Sun X, Tian T, Pang W, Cai R. Profiling of m 6A methylation in porcine intramuscular adipocytes and unravelling PHKG1 represses porcine intramuscular lipid deposition in an m 6A-dependent manner. Int J Biol Macromol 2024; 272:132728. [PMID: 38825295 DOI: 10.1016/j.ijbiomac.2024.132728] [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: 02/11/2024] [Revised: 05/10/2024] [Accepted: 05/24/2024] [Indexed: 06/04/2024]
Abstract
Intramuscular fat (IMF) content is mainly determined by intramuscular preadipocyte adipogenesis. Epigenetic modifications are known to have a regulatory effect on IMF. As N6-methyladenosine (m6A) is the most abundant epigenetic modification in eukaryotic RNAs. In the present study, we used m6A methylation and RNA sequencing (seq) to identify the m6A-modified RNAs associated with the adipogenic differentiation of intramuscular preadipocytes. Among them, the expression and m6A level of phosphorylase kinase subunit G1 (PHKG1) were found to be significantly changed during adipogenesis. Further studies revealed that knockdown of the methylase METTL3 decreased the m6A methylation of PHKG1 and led to a reduction in PHKG1. Moreover, knockdown of PHKG1 promoted adipogenic differentiation by upregulating the expression of adipogenic genes. In addition, we found that the IMF content in the longissimus thoracis (LT) of Bamei (BM) pigs was greater than that in Large White (LW) pigs, whereas the m6A and PHKG1 expression levels were lower in BM pigs. These findings indicate that the m6A level and expression of PHKG1 were significantly correlated with IMF content and meat quality. In conclusion, this study sheds light on the mechanism by which m6A modification regulates IMF deposition.
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Affiliation(s)
- Mingkun Chao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Mingyu Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Haozhe Han
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yichen Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaohui Sun
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Tingting Tian
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Weijun Pang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Rui Cai
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
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15
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Xu W, Shen H. m 6A regulates heterochromatin in mammalian embryonic stem cells. Curr Opin Genet Dev 2024; 86:102196. [PMID: 38669774 DOI: 10.1016/j.gde.2024.102196] [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: 01/14/2024] [Revised: 03/14/2024] [Accepted: 04/03/2024] [Indexed: 04/28/2024]
Abstract
As the most well-studied modification in mRNA, m6A has been shown to regulate multiple biological processes, including RNA degradation, processing, and translation. Recent studies showed that m6A modification is enriched in chromatin-associated RNAs and nascent RNAs, suggesting m6A might play regulatory roles in chromatin contexts. Indeed, in the past several years, a number of studies have clarified how m6A and its modulators regulate different types of chromatin states. Specifically, in the past 2-3 years, several studies discovered the roles of m6A and/or its modulators in regulating constitutive and facultative heterochromatin, shedding interesting lights on RNA-dependent heterochromatin formation in mammalian cells. This review will summarize and discuss the mechanisms underlying m6A's regulation in different types of heterochromatin, with a specific emphasis on the regulation in mammalian embryonic stem cells, which exhibit distinct features of multiple heterochromatin marks.
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Affiliation(s)
- Wenqi Xu
- Shanghai Pudong Hospital, Fudan University Pudong Medical Center, The Shanghai Key Laboratory of Medical Epigenetics, Institutes of Biomedical Sciences, Fudan University, Shanghai, China.
| | - Hongjie Shen
- Shanghai Pudong Hospital, Fudan University Pudong Medical Center, The Shanghai Key Laboratory of Medical Epigenetics, Institutes of Biomedical Sciences, Fudan University, Shanghai, China.
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16
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Yang W, Zhao Y, Yang Y. Dynamic RNA methylation modifications and their regulatory role in mammalian development and diseases. SCIENCE CHINA. LIFE SCIENCES 2024:10.1007/s11427-023-2526-2. [PMID: 38833084 DOI: 10.1007/s11427-023-2526-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 11/15/2023] [Indexed: 06/06/2024]
Abstract
Among over 170 different types of chemical modifications on RNA nucleobases identified so far, RNA methylation is the major type of epitranscriptomic modifications existing on almost all types of RNAs, and has been demonstrated to participate in the entire process of RNA metabolism, including transcription, pre-mRNA alternative splicing and maturation, mRNA nucleus export, mRNA degradation and stabilization, mRNA translation. Attributing to the development of high-throughput detection technologies and the identification of both dynamic regulators and recognition proteins, mechanisms of RNA methylation modification in regulating the normal development of the organism as well as various disease occurrence and developmental abnormalities upon RNA methylation dysregulation have become increasingly clear. Here, we particularly focus on three types of RNA methylations: N6-methylcytosine (m6A), 5-methylcytosine (m5C), and N7-methyladenosine (m7G). We summarize the elements related to their dynamic installment and removal, specific binding proteins, and the development of high-throughput detection technologies. Then, for a comprehensive understanding of their biological significance, we also overview the latest knowledge on the underlying mechanisms and key roles of these three mRNA methylation modifications in gametogenesis, embryonic development, immune system development, as well as disease and tumor progression.
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Affiliation(s)
- Wenlan Yang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, Inner Mongolia Key Laboratory for Molecular Regulation of the Cell, School of Life Sciences, Inner Mongolia University, Hohhot, 010020, China
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
- China National Center for Bioinformation, Beijing, 100101, China
| | - Yongliang Zhao
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
- China National Center for Bioinformation, Beijing, 100101, China
| | - Yungui Yang
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China.
- China National Center for Bioinformation, Beijing, 100101, China.
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China.
- Sino-Danish College, University of Chinese Academy of Sciences, Beijing, 101408, China.
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17
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Mansfield KD. RNA Binding by the m6A Methyltransferases METTL16 and METTL3. BIOLOGY 2024; 13:391. [PMID: 38927271 PMCID: PMC11200852 DOI: 10.3390/biology13060391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/10/2024] [Accepted: 05/25/2024] [Indexed: 06/28/2024]
Abstract
Methyltransferases are a wide-ranging, yet well-conserved, class of molecules that have been found to modify a wide variety of substrates. Interest in RNA methylation has surged in recent years with the identification of the major eukaryotic mRNA m6A methyltransferase METTL3. METTL16 has also been identified as an RNA m6A methyltransferase; however, much less is known about its targets and actions. Interestingly, in addition to their catalytic activities, both METTL3 and METTL16 also have "methylation-independent" functions, including translational regulation, which have been discovered. However, evidence suggests that METTL16's role as an RNA-binding protein may be more significant than is currently recognized. In this review, we will introduce RNA methylation, specifically m6A, and the enzymes responsible for its deposition. We will discuss the varying roles that these enzymes perform and delve deeper into their RNA targets and possible roles as methylation-independent RNA binding proteins. Finally, we will touch upon the many open questions still remaining.
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Affiliation(s)
- Kyle D Mansfield
- Biochemistry and Molecular Biology Department, Brody School of Medicine, East Carolina University, Greenville, NC 27834, USA
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18
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Gu N, Shen Y, He Y, Li C, Xiong W, Hu Y, Qiu Z, Peng F, Han W, Li C, Long X, Zhao R, Zhao Y, Shi B. Loss of m6A demethylase ALKBH5 alleviates hypoxia-induced pulmonary arterial hypertension via inhibiting Cyp1a1 mRNA decay. J Mol Cell Cardiol 2024; 194:16-31. [PMID: 38821243 DOI: 10.1016/j.yjmcc.2024.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
BACKGROUND Hypoxia-induced pulmonary artery hypertension (HPH) is a complication of chronic hypoxic lung disease and the third most common type of pulmonary artery hypertension (PAH). Epigenetic mechanisms play essential roles in the pathogenesis of HPH. N6-methyladenosine (m6A) is an important modified RNA nucleotide involved in a variety of biological processes and an important regulator of epigenetic processes. To date, the precise role of m6A and regulatory molecules in HPH remains unclear. METHODS HPH model and pulmonary artery smooth muscle cells (PASMCs) were constructed from which m6A changes were observed and screened for AlkB homolog 5 (Alkbh5). Alkbh5 knock-in (KI) and knock-out (KO) mice were constructed to observe the effects on m6A and evaluate right ventricular systolic pressure (RVSP), left ventricular and septal weight [RV/(LV + S)], and pulmonary vascular remodeling in the context of HPH. Additionally, the effects of Alkbh5 knockdown using adenovirus were examined in vitro on m6A, specifically in PASMCs with regard to proliferation, migration and cytochrome P450 1A1 (Cyp1a1) mRNA stability. RESULTS In both HPH mice lung tissues and hypoxic PASMCs, a decrease in m6A was observed, accompanied by a significant up-regulation of Alkbh5 expression. Loss of Alkbh5 attenuated the proliferation and migration of hypoxic PASMCs in vitro, with an associated increase in m6A modification. Furthermore, Alkbh5 KO mice exhibited reduced RVSP, RV/(LV + S), and attenuated vascular remodeling in HPH mice. Mechanistically, loss of Alkbh5 inhibited Cyp1a1 mRNA decay and increased its expression through an m6A-dependent post-transcriptional mechanism, which hindered the proliferation and migration of hypoxic PASMCs. CONCLUSION The current study highlights the loss of Alkbh5 impedes the proliferation and migration of PASMCs by inhibiting post-transcriptional Cyp1a1 mRNA decay in an m6A-dependent manner.
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Affiliation(s)
- Ning Gu
- College of Medicine, Soochow University, Suzhou, China; Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Youcheng Shen
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Yuanjie He
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Chaofu Li
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Weidong Xiong
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Yiqing Hu
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - Zhimei Qiu
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Fengli Peng
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Weiyu Han
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Chaozhong Li
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Xianping Long
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Ranzun Zhao
- College of Medicine, Soochow University, Suzhou, China; Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Yongchao Zhao
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China.
| | - Bei Shi
- College of Medicine, Soochow University, Suzhou, China; Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China.
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19
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Min YH, Shao WX, Hu QS, Xie NB, Zhang S, Feng YQ, Xing XW, Yuan BF. Simultaneous Detection of Adenosine-to-Inosine Editing and N6-Methyladenosine at Identical RNA Sites through Deamination-Assisted Reverse Transcription Stalling. Anal Chem 2024; 96:8730-8739. [PMID: 38743814 DOI: 10.1021/acs.analchem.4c01022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Adenosine-to-inosine (A-to-I) editing and N6-methyladenosine (m6A) modifications are pivotal RNA modifications with widespread functional significance in physiological and pathological processes. Although significant effort has been dedicated to developing methodologies for identifying and quantifying these modifications, traditional approaches have often focused on each modification independently, neglecting the potential co-occurrence of A-to-I editing and m6A modifications at the same adenosine residues. This limitation has constrained our understanding of the intricate regulatory mechanisms governing RNA function and the interplay between different types of RNA modifications. To address this gap, we introduced an innovative technique called deamination-assisted reverse transcription stalling (DARTS), specifically designed for the simultaneous quantification of A-to-I editing and m6A at the same RNA sites. DARTS leverages the selective deamination activity of the engineered TadA-TadA8e protein, which converts adenosine residues to inosine, in combination with the unique property of Bst 2.0 DNA polymerase, which stalls when encountering inosine during reverse transcription. This approach enables the accurate quantification of A-to-I editing, m6A, and unmodified adenosine at identical RNA sites. The DARTS method is remarkable for its ability to directly quantify two distinct types of RNA modifications simultaneously, a capability that has remained largely unexplored in the field of RNA biology. By facilitating a comprehensive analysis of the co-occurrence and interaction between A-to-I editing and m6A modifications, DARTS opens new avenues for exploring the complex regulatory networks modulated by different RNA modifications.
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Affiliation(s)
- Yi-Hao Min
- College of Chemistry and Molecular Sciences, Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430071, China
| | - Wen-Xuan Shao
- College of Chemistry and Molecular Sciences, Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430071, China
| | - Qiu-Shuang Hu
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071, China
| | - Neng-Bin Xie
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071, China
- Research Center of Public Health, Renmin Hospital of Wuhan University, Wuhan University, Wuhan 430060, China
- Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Zhongnan Hospital of Wuhan University, Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan 430071, China
| | - Shan Zhang
- College of Chemistry and Molecular Sciences, Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430071, China
| | - Yu-Qi Feng
- College of Chemistry and Molecular Sciences, Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430071, China
| | - Xi-Wen Xing
- Department of Biotechnology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Bi-Feng Yuan
- College of Chemistry and Molecular Sciences, Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430071, China
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071, China
- Research Center of Public Health, Renmin Hospital of Wuhan University, Wuhan University, Wuhan 430060, China
- Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Zhongnan Hospital of Wuhan University, Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan 430071, China
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20
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Du B, Zhang Z, Jia L, Zhang H, Zhang S, Wang H, Cheng Z. Micropeptide AF127577.4-ORF hidden in a lncRNA diminishes glioblastoma cell proliferation via the modulation of ERK2/METTL3 interaction. Sci Rep 2024; 14:12090. [PMID: 38802444 PMCID: PMC11130299 DOI: 10.1038/s41598-024-62710-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 05/21/2024] [Indexed: 05/29/2024] Open
Abstract
Micropeptides hidden in long non-coding RNAs (lncRNAs) have been uncovered to program various cell-biological changes associated with malignant transformation-glioblastoma (GBM) cascade. Here, we identified and characterized a novel hidden micropeptide implicated in GBM. We screened potential candidate lncRNAs by establishing a workflow involving ribosome-bound lncRNAs, publicly available MS/MS data, and prognosis-related lncRNAs. Micropeptide expression was detected by western blot (WB), immunofluorescence (IF), and immunohistochemistry (IHC). Cell proliferation rate was assessed by calcein/PI staining and EdU assay. Proteins interacted with the micropeptide were analyzed by proteomics after co-immunoprecipitation (Co-IP). We discovered that lncRNA AF127577.4 indeed encoded an endogenous micropeptide, named AF127577.4-ORF. AF127577.4-ORF was associated with GBM clinical grade. In vitro, AF127577.4-ORF could suppress GBM cell proliferation. Moreover, AF127577.4-ORF reduced m6A methylation level of GBM cells. Mechanistically, AF127577.4-ORF diminished ERK2 interaction with m6A reader methyltransferase like 3 (METTL3) and downregulated phosphorylated ERK (p-ERK) level. The ERK inhibitor reduced p-ERK level and downregulated METTL3 protein expression. AF127577.4-ORF weakened the stability of METTL3 protein by ERK. Also, AF127577.4-ORF suppressed GBM cell proliferation via METTL3. Our study identifies a novel micropeptide AF127577.4-ORF hidden in a lncRNA, with a potent anti-proliferating function in GBM by diminishing METTL3 protein stability by reducing the ERK2/METTL3 interaction. This micropeptide may be beneficial for development of therapeutic strategies against GBM.
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Affiliation(s)
- Baoshun Du
- Department of Neurosurgery, Xinxiang Central Hospital, Xinxiang, 453003, Henan, People's Republic of China
| | - Zheying Zhang
- Department of Pathology, Xinxiang Medical University, No. 601 Jinsui Avenue, Xinxiang, 453003, Henan, People's Republic of China.
| | - Linlin Jia
- Department of Critical Care Medicine, The Second Affiliated Hospital of Henan University of Science and Technology, Luoyang, 450053, Henan, People's Republic of China
| | - Huan Zhang
- Department of Neurosurgery, Xinxiang Central Hospital, Xinxiang, 453003, Henan, People's Republic of China
| | - Shuai Zhang
- Department of Pathology, Xinxiang Medical University, No. 601 Jinsui Avenue, Xinxiang, 453003, Henan, People's Republic of China
| | - Haijun Wang
- Department of Pathology, Xinxiang Medical University, No. 601 Jinsui Avenue, Xinxiang, 453003, Henan, People's Republic of China
| | - Zhenguo Cheng
- Department of Neurosurgery, Xinxiang Central Hospital, Xinxiang, 453003, Henan, People's Republic of China
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Shi R, Zhao R, Shen Y, Wei S, Zhang T, Zhang J, Shu W, Cheng S, Teng H, Wang H. IGF2BP2-modified circular RNA circCHD7 promotes endometrial cancer progression via stabilizing PDGFRB and activating JAK/STAT signaling pathway. Cancer Gene Ther 2024:10.1038/s41417-024-00781-9. [PMID: 38778089 DOI: 10.1038/s41417-024-00781-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 04/18/2024] [Accepted: 04/23/2024] [Indexed: 05/25/2024]
Abstract
Circular RNAs (circRNAs) represent a class of covalently closed, single-stranded RNAs and have been linked to cancer progression. N6-methyladenosine (m6A) methylation is a ubiquitous RNA modification in cancer cells. Increasing evidence suggests that m6A can mediate the effects of circRNAs in cancer biology. In contrast, the post-transcriptional systems of m6A and circRNA in the progression of endometrial cancer (EC) remain obscure. The current study identified a novel circRNA with m6A modification, hsa_circ_0084582 (circCHD7), which was upregulated in EC tissues. Functionally, circCHD7 was found to promote the proliferation of EC cells. Mechanistically, circCHD7 interacted with insulin-like growth factor 2 mRNA-binding protein (IGF2BP2) to amplify its enrichment. Moreover, circCHD7 increased the mRNA stability of platelet-derived growth factor receptor beta (PDGFRB) in an m6A-dependent manner, thereby enhancing its expression. In addition, the circCHD7/IGF2BP2/PDGFRB axis activated the JAK/STAT signaling pathway and promoted EC cell proliferation. In conclusion, these findings provide new insights into the regulation of circRNA-mediated m6A modification, and the new "circCHD7-PDGFRB" model of regulation offers new perspectives on circCHD7 as a potential target for EC therapy.
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Affiliation(s)
- Rui Shi
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China
| | - Rong Zhao
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China
| | - Yan Shen
- Health Management Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China
| | - Sitian Wei
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China
| | - Tangansu Zhang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China
| | - Jun Zhang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China
| | - Wan Shu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China
| | - Shuangshuang Cheng
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China
| | - Hua Teng
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China
| | - Hongbo Wang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China.
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Chen B, Deng Y, Hong Y, Fan L, Zhai X, Hu H, Yin S, Chen Q, Xie X, Ren X, Zhao J, Jiang C. Metabolic Recoding of NSUN2-Mediated m 5C Modification Promotes the Progression of Colorectal Cancer via the NSUN2/YBX1/m 5C-ENO1 Positive Feedback Loop. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2309840. [PMID: 38769664 DOI: 10.1002/advs.202309840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 03/11/2024] [Indexed: 05/22/2024]
Abstract
The RNA modification, 5-methylcytosine (m5C), has recently gained prominence as a pivotal post-transcriptional regulator of gene expression, intricately intertwined with various tumorigenic processes. However, the exact mechanisms governing m5C modifications during the onset and progression of colorectal cancer (CRC) remain unclear. Here, it is determined that the m5C methyltransferase NSUN2 exhibits significantly elevated expression and exerts an oncogenic function in CRC. Mechanistically, NSUN2 and YBX1 are identified as the "writer" and "reader" of ENO1, culminating in the reprogramming of the glucose metabolism and increased production of lactic acid in an m5C-dependent manner. The accumulation of lactic acid derived from CRC cells, in turn, activates the transcription of NSUN2 through histone H3K18 lactylation (H3K18la), and induces the lactylation of NSUN2 at the Lys356 residue (K356), which is crucial for capturing target RNAs. Together, these findings reveal an intriguing positive feedback loop involving the NSUN2/YBX1/m5C-ENO1 signaling axis, thereby bridging the connection between metabolic reprogramming and epigenetic remodeling, which may shed light on the therapeutic potential of combining an NSUN2 inhibitor with immunotherapy for CRC.
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Affiliation(s)
- Baoxiang Chen
- Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Hubei Key Laboratory of Intestinal and Colorectal Diseases, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Clinical Center of Intestinal and Colorectal Diseases of Hubei Province, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Yanrong Deng
- Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Hubei Key Laboratory of Intestinal and Colorectal Diseases, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Clinical Center of Intestinal and Colorectal Diseases of Hubei Province, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Yuntian Hong
- Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Hubei Key Laboratory of Intestinal and Colorectal Diseases, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Clinical Center of Intestinal and Colorectal Diseases of Hubei Province, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Lifang Fan
- Department of Pathology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Xiang Zhai
- Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Hubei Key Laboratory of Intestinal and Colorectal Diseases, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Clinical Center of Intestinal and Colorectal Diseases of Hubei Province, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Heng Hu
- Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Hubei Key Laboratory of Intestinal and Colorectal Diseases, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Clinical Center of Intestinal and Colorectal Diseases of Hubei Province, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Siyuan Yin
- Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Hubei Key Laboratory of Intestinal and Colorectal Diseases, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Clinical Center of Intestinal and Colorectal Diseases of Hubei Province, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Quanjiao Chen
- CAS Key Laboratory of Special Pathogens and Biosafety, CAS Center for Influenza Research and Early Warning, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430064, China
| | - Xiaoyu Xie
- Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Hubei Key Laboratory of Intestinal and Colorectal Diseases, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Clinical Center of Intestinal and Colorectal Diseases of Hubei Province, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Xianghai Ren
- Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Hubei Key Laboratory of Intestinal and Colorectal Diseases, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Clinical Center of Intestinal and Colorectal Diseases of Hubei Province, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Jianhong Zhao
- Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Hubei Key Laboratory of Intestinal and Colorectal Diseases, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Clinical Center of Intestinal and Colorectal Diseases of Hubei Province, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Congqing Jiang
- Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Hubei Key Laboratory of Intestinal and Colorectal Diseases, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Clinical Center of Intestinal and Colorectal Diseases of Hubei Province, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
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蒋 婷, 张 学, 许 文. [The Roles of N 6-Methyladenosine Modification and Its Regulators in Male Reproduction]. SICHUAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF SICHUAN UNIVERSITY. MEDICAL SCIENCE EDITION 2024; 55:527-534. [PMID: 38948273 PMCID: PMC11211765 DOI: 10.12182/20240560103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Indexed: 07/02/2024]
Abstract
Infertility affects an estimated 10 to 15 percent of couples worldwide, with approximately half of the cases attributed to male-related issues. Most men diagnosed with infertility exhibit symptoms such as oligospermia, asthenospermia, azoospermia, and compromised sperm quality. Spermatogenesis is a complex and tightly coordinated process of germ cell differentiation, precisely regulated at transcriptional, posttranscriptional, and translational levels to ensure stage-specific gene expression during the development of spermatogenic cells and normal spermiogenesis. N6-methyladenosine (m6A) stands out as the most prevalent modification on eukaryotic mRNA, playing pivotal roles in various biological processes, including mRNA splicing, transportation, and translation. RNA methylation modification is a dynamic and reversible process primarily mediated by "writers", removed by "erasers", and recognized by "readers". In mammals, the aberrant methylation modification of m6A on mRNA is associated with a variety of diseases, including male infertility. However, the precise involvement of disrupted m6A modification in the pathogenesis of human male infertility remains unresolved. Intriguingly, a significant correlation has been found between the expression levels of m6A regulators in the testis and the severity of sperm concentration, motility, and morphology. Aberrant expression patterns of m6A regulatory proteins have been detected in anomalous human semen samples, including those of oligospermia, asthenozoospermia, and azoospermia. Furthermore, the examination of both sperm samples and testicular tissues revealed abnormal mRNA m6A modification, leading to reduced sperm motility and concentration in infertile men. Consequently, it is hypothesized that dysregulation of m6A modification might serve as an integral link in the mechanism of male infertility. This paper presents a comprehensive review of the recent discoveries regarding the spatial and temporal expression dynamics of m6A regulators in testicular tissues and the correlation between deregulated m6A regulators and human male infertility. Previous studies predominantly utilized constitutive or conditional knockout animal models for testicular phenotypic investigations. However, gene suppression in additional tissues could potentially influence the testis in constitutive knockout models. Furthermore, considering the compromised spermatogenesis observed in constitutive animals, distinguishing between the indirect effects of gene depletion on testicular development and its direct impact on the spermatogenic process is challenging, due to their intricate relationship. Such confounding factors might compromise the validity of the findings. To address this challenge, an inducible and conditional gene knockout model may serve as a superior approach. To date, nearly all reported studies have concentrated solely on the level changes of m6A and its regulators in germs cells, while the understanding of the function of m6A modification in testicular somatic cells remains limited. Testicular somatic cells, including peritubular myoid cells, Sertoli cells, and Leydig cells, play indispensable roles during spermatogenesis. Hence, comprehensive exploration of m6A modification within these cells as an additional crucial regulatory mechanism is warranted. In addition, exploration into the presence of unique methylation mechanisms or m6A regulatory factors within the testes is warranted. To elucidate the role of m6A modification in germ cells and testicular somatic cells, detailed experimental strategies need to be implemented. Among them, manipulation of the levels of key enzymes involved in m6A methylation and demethylation might be the most effective approach. Moreover, comprehensive analysis of the gene expression profiles involved in various signaling pathways, such as Wnt/β-catenin, Ras/MAPK, and Hippo, in m6A-modified germ cells and testicular somatic cells can provide more insight into its regulatory role in the spermatogenesis process. Further research in this area could provide valuable insights for developing innovative strategies to treat male infertility. Finally, considering the mitigation impact of m6A imbalance regulation on disease, investigation concerning whether restoring the equilibrium of m6A modification regulation can restore normal spermatogenesis function is essential, potentially elucidating the pivotal clinical significance of m6A modulation in male infertility.
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Affiliation(s)
- 婷 蒋
- 四川大学华西第二医院 生殖遗传与表观遗传调控研究室 (成都 610041)Laboratory of Reproductive Genetics and Epigenetic Regulatio, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- 出生缺陷与相关妇儿疾病教育部重点实验室(四川大学) (成都 610041)Key Laboratory of Birth Defects and Related Diseases of Women and Children of the Ministry of Education, Sichuan University, Chengdu 610041, China
| | - 学广 张
- 四川大学华西第二医院 生殖遗传与表观遗传调控研究室 (成都 610041)Laboratory of Reproductive Genetics and Epigenetic Regulatio, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- 出生缺陷与相关妇儿疾病教育部重点实验室(四川大学) (成都 610041)Key Laboratory of Birth Defects and Related Diseases of Women and Children of the Ministry of Education, Sichuan University, Chengdu 610041, China
| | - 文明 许
- 四川大学华西第二医院 生殖遗传与表观遗传调控研究室 (成都 610041)Laboratory of Reproductive Genetics and Epigenetic Regulatio, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- 出生缺陷与相关妇儿疾病教育部重点实验室(四川大学) (成都 610041)Key Laboratory of Birth Defects and Related Diseases of Women and Children of the Ministry of Education, Sichuan University, Chengdu 610041, China
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24
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Kong LS, Tao R, Li YF, Wang WB, Zhao X. METTL5 promotes cell proliferation, invasion, and migration by up-regulating Toll-like receptor 8 expression in colorectal cancer. World J Gastrointest Oncol 2024; 16:2006-2017. [PMID: 38764815 PMCID: PMC11099443 DOI: 10.4251/wjgo.v16.i5.2006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 01/10/2024] [Accepted: 03/18/2024] [Indexed: 05/09/2024] Open
Abstract
BACKGROUND N6-methyladenosine (m6A) modification represents the predominant alteration found in eukaryotic messenger RNA and plays a crucial role in the progression of various tumors. However, despite its significance, the comprehensive investigation of METTL5, a key m6A methyltransferase, in colorectal cancer (CRC) remains limited. AIM To investigate the role of METTL5 in CRC. METHODS We assessed METTL5 expression levels in clinical samples obtained from CRC patients as well as in CRC cell lines. To elucidate the downstream targets of METTL5, we performed RNA-sequencing analysis coupled with correlation analysis, leading us to identify Toll-like receptor 8 (TLR8) as a potential downstream target. In vitro functional assessments of METTL5 and TLR8 were conducted using CCK-8 assays, scratch assays, as well as assays measuring cell migration and invasion. RESULTS Our findings reveal a pronounced upregulation of METTL5 expression in both CRC cells and tissues, which correlated significantly with an unfavorable prognosis. In vitro experiments unequivocally demonstrated the oncogenic role of METTL5, as evidenced by its promotion of CRC cell proliferation, invasion, and migration. Notably, we identified TLR8 as a downstream target of METTL5, and subsequent down-regulation of TLR8 led to a significant inhibition of CRC cell proliferation, invasion, and tumor growth. CONCLUSION The heightened expression of METTL5 in CRC is strongly associated with clinicopathological features and a poor prognosis, thereby underscoring its potential utility as a critical marker for facilitating early diagnosis and prognostication in CRC.
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Affiliation(s)
- Ling-Shang Kong
- Department of General Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230001, Anhui Province, China
- Department of Vascular Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230002, Anhui Province, China
| | - Ran Tao
- Department of General Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230001, Anhui Province, China
- Department of Vascular Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230002, Anhui Province, China
| | - Yi-Fan Li
- Department of General Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230001, Anhui Province, China
- Department of Vascular Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230002, Anhui Province, China
| | - Wen-Bin Wang
- Department of General Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230001, Anhui Province, China
- Department of Vascular Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230002, Anhui Province, China
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230001, Anhui Province, China
- Anhui Public Health Clinical Center, Hefei 230012, Anhui Province, China
| | - Xue Zhao
- Department of Scientific Research, Anhui Public Health Clinical Center, Hefei 230012, Anhui Province, China
- Department of Scientific Research, The First Affiliated Hospital of Anhui Medical University, Hefei 230001, Anhui Province, China
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Hong L, Zhuo T, Jing S. Silencing of METTL3 inhibits m6A methylation of NEK7 to suppress pyrolysis in an HT-22 cell-based model of intracerebral hemorrhage. Brain Res 2024; 1831:148828. [PMID: 38408556 DOI: 10.1016/j.brainres.2024.148828] [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: 12/18/2023] [Revised: 02/18/2024] [Accepted: 02/23/2024] [Indexed: 02/28/2024]
Abstract
Intracerebral hemorrhage (ICH) induces severe neurological damage, and its progression is driven by METTL3. This study aimed to investigate the role of METTL3 in ICH via in vitro experiments. For this purpose, HT-22 cells were treated with hemin to mimic ICH in vitro, followed by evaluating cell pyroptosis using flow cytometry, lactic dehydrogenase release analysis, enzyme-linked immunosorbent assay, and western blotting. Moreover, N6-methyl adenosine (m6A) methylation of NEK7 was assessed using methylated RNA immunoprecipitation, RNA immunoprecipitation, dual-luciferase reporter assay, and quantitative real-time polymerase chain reaction. Results indicated that knockdown of METTL3 inhibited hemin-induced pyroptosis and suppressed m6A methylation of NEK7 due to METTL3 downregulation, reducing NEK7 mRNA stability. The effects on METTL3-induced cell pyroptosis were abrogated by overexpressing NEK7, while IGF2BP2 increased NEK7 expression. Similarly, IGF2BP2 silence downregulated NEK7 expression mediated by METTL3. In conclusion, silencing of METTL3 inhibited hemin-induced HT-22 cell pyroptosis by suppressing m6A methylation of NEK7, which was recognized by IGF2BP2. These findings are envisaged to identify a novel therapeutic strategy for ICH.
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Affiliation(s)
- Lei Hong
- Department of Neurosurgery, Ningbo Ninth Hospital, Ningbo, Zhejiang Province 315000, China.
| | - Ting Zhuo
- Department of Neurosurgery, Ningbo Ninth Hospital, Ningbo, Zhejiang Province 315000, China
| | - Shuguang Jing
- Department of Neurosurgery, Ningbo Ninth Hospital, Ningbo, Zhejiang Province 315000, China
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Nan Y, Chen M, Wu W, Huang R, Sun W, Lu Q, Gu Z, Mao X, Xu H, Wang Y. IGF2BP2 regulates the inflammation of fibroblast-like synoviocytes via GSTM5 in rheumatoid arthritis. Cell Death Discov 2024; 10:215. [PMID: 38702323 PMCID: PMC11068746 DOI: 10.1038/s41420-024-01988-3] [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: 08/05/2023] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 05/06/2024] Open
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease with an unknown etiology. RA cannot be fully cured and requires lengthy treatment, imposing a significant burden on both individuals and society. Due to the lack of specific drugs available for treating RA, exploring a key new therapeutic target for RA is currently an important task. Activated fibroblast-like synoviocytes (FLSs) play a crucial role in the progression of RA, which release interleukin (IL)-1β, IL-6 and tumor necrosis factor (TNF)-α resulting in abnormal inflammatory reaction in the synovium. A previous study has highlighted the correlation of m6A reader insulin-like growth factor 2 mRNA-binding protein 2 (IGF2BP2) with inflammation-related diseases in human. However, the role of IGF2BP2 in the inflammatory reaction of FLSs during RA progression has not been assessed. In this study, IGF2BP2 expression was decreased in the synovial tissues of RA patients and collagen-induced arthritis (CIA) rats. Intra-articular injection of an adeno-associated virus (AAV) vector overexpressing IGF2BP2 relieved paw swelling, synovial hyperplasia and cartilage destruction in CIA rats. IGF2BP2 overexpression also inhibited lipopolysaccharide (LPS)-mediated RA fibroblast-like synoviocytes (RA-FLSs) migration and invasion accompanied by a decreased level of inflammatory factors in vitro. Conversely, IGF2BP2 suppression promoted RA-FLSs migration and invasion with an elevated level of inflammatory factors in vitro. The sequencing result showed that glutathione S-transferase Mu 5 (GSTM5), a key antioxidant gene, was the target mRNA of IGF2BP2. Further experiments demonstrated that IGF2BP2 strengthened the stability of GSTM5 mRNA, leading to weakened inflammatory reaction and reduced expression of matrix metalloproteinase 9 and 13 (MMP9, MMP13). Therefore, IGF2BP2-GSTM5 axis may represent a potential therapeutic target for RA treatment.
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Affiliation(s)
- Yunyi Nan
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, 226001, Nantong, China
| | - Minhao Chen
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, 226001, Nantong, China
| | - Weijie Wu
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, 226001, Nantong, China
- Department of Orthopaedics, Affiliated Nantong Hospital of Shanghai University, The Sixth People's Hospital of Nantong, 226001, Nantong, China
| | - Rongrong Huang
- Department of Pharmacy, Affiliated Hospital of Nantong University, 226001, Nantong, China
| | - Weiwei Sun
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, 226001, Nantong, China
| | - Qian Lu
- Department of Rheumatology, Affiliated Hospital of Nantong University, 226001, Nantong, China
| | - Zhifeng Gu
- Department of Rheumatology, Affiliated Hospital of Nantong University, 226001, Nantong, China
| | - Xingxing Mao
- Department of Orthopaedics, Affiliated Nantong Hospital of Shanghai University, The Sixth People's Hospital of Nantong, 226001, Nantong, China.
| | - Hua Xu
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, 226001, Nantong, China.
| | - Youhua Wang
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, 226001, Nantong, China.
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27
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Gong Y, Luo G, Zhang S, Chen Y, Hu Y. Transcriptome sequencing analysis reveals miR-30c-5p promotes ferroptosis in cervical cancer and inhibits growth and metastasis of cervical cancer xenografts by targeting the METTL3/KRAS axis. Cell Signal 2024; 117:111068. [PMID: 38286198 DOI: 10.1016/j.cellsig.2024.111068] [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: 09/27/2023] [Revised: 01/18/2024] [Accepted: 01/26/2024] [Indexed: 01/31/2024]
Abstract
Cervical cancer is the most common malignant tumor in the female reproductive system worldwide, and its molecular mechanisms remain complex and poorly understood. Various techniques, including transcriptome sequencing, RT-qPCR, ELISA, immunofluorescence, Western blot, CCK-8 assay, Transwell assay, and xenograft models, were employed to investigate gene/miRNA expression, cellular proliferation, migration, and the interactions between miR-30c-5p, METTL3, and KRAS. Our transcriptome sequencing results demonstrated a significant downregulation of miR-30c-5p in cervical cancer cells. Further investigations using RNA pull-down, dual-luciferase reporter assay, Me-RIP, and PAR-CLIP confirmed METTL3 as one of the downstream targets of miR-30c-5p, while KRAS was identified as an iron-death suppressor gene susceptible to m6A modification. Notably, our Me-RIP analysis demonstrated the involvement of METTL3 in m6A modification of KRAS. In vitro experiments revealed that miR-30c-5p facilitated ferroptosis in cervical cancer cells by inhibiting the METTL3/KRAS axis, thus suppressing proliferation and migration. Additionally, in vivo studies demonstrated that miR-30c-5p repressed the growth and metastasis of cervical cancer xenografts through the inhibition of the METTL3/KRAS axis. Overall, this study highlights the critical role of miR-30c-5p in modulating cervical cancer progression by targeting the METTL3/KRAS axis, providing new insights into the molecular mechanisms underlying cervical cancer growth and metastasis.
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Affiliation(s)
- Yangmei Gong
- The First Affiliated Hospital, Center for a combination of Obstetrics and Gynecology & Reproductive medicine, Henyang Medical School, University of South China, Hengyang 421001, China
| | - Guifang Luo
- The First Affiliated Hospital, Center for a combination of Obstetrics and Gynecology & Reproductive medicine, Henyang Medical School, University of South China, Hengyang 421001, China
| | - Shufen Zhang
- The First Affiliated Hospital, Center for a combination of Obstetrics and Gynecology & Reproductive medicine, Henyang Medical School, University of South China, Hengyang 421001, China
| | - Yijing Chen
- The First Affiliated Hospital, Center for a combination of Obstetrics and Gynecology & Reproductive medicine, Henyang Medical School, University of South China, Hengyang 421001, China
| | - Yi Hu
- The First Affiliated Hospital, Center for a combination of Obstetrics and Gynecology & Reproductive medicine, Henyang Medical School, University of South China, Hengyang 421001, China.
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Yang J, Ji Z, Gao F, Wu J, Du M, Zhang Z, Yuan L, Zheng R, Wang M. Cigarette smoking combined with genetic variation regulates the m 6A methylation of CRNKL1 and is associated with bladder cancer risk. ENVIRONMENTAL TOXICOLOGY 2024; 39:2782-2793. [PMID: 38270278 DOI: 10.1002/tox.24138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 12/14/2023] [Accepted: 12/29/2023] [Indexed: 01/26/2024]
Abstract
Cigarette smoking was known to accelerate the occurrence and development of bladder cancer by regulating RNA modification. However, the association between the combination of cigarette smoking and RNA modification-related single nucleotide polymorphisms (RNAm-SNPs) and bladder cancer risk remains unclear. In this study, 1681 participants, including 580 cases and 1101 controls, were recruited for genetic association analysis. In total, 1 287 990 RNAm-SNPs involving nine RNA modifications (m6A, m1A, m6Am, 2'-O-Me, m5C, m7G, A-to-I, m5U, and pseudouridine modification) were obtained from the RMVar database. The interactive effect of cigarette smoking and RNAm-SNPs on bladder cancer risk was assessed through joint analysis. The susceptibility analysis revealed that 89 RNAm-SNPs involving m6A, m1A, and A-to-I modifications were associated with bladder cancer risk. Among them, m6A-related rs2273058 in CRNKL1 was associated with bladder cancer risk (odds ratios (OR) = 1.35, padj = 1.78 × 10-4), and CRNKL1 expression was increased in bladder cancer patients (p = 0.035). Cigarette smoking combined with the A allele of rs2273058 increased bladder cancer risk compared with nonsmokers with the G allele of rs2273058 (OR = 2.40, padj = 3.11 × 10-9). Mechanistically, the A allele of rs2273058 endowed CRNKL1 with an additional m6A motif, facilitating recognition by m6A reader IGF2BP1, thereby promoting CRNKL1 expression under cigarette smoking (r = 0.142, p = 0.017). Moreover, elevated CRNKL1 expression may accelerate cell cycle and proliferation, thereby increasing bladder cancer risk. In summary, our study demonstrated that cigarette smoking combined with RNAm-SNPs contributes to bladder cancer risk, which provides a potential target for bladder cancer prevention.
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Affiliation(s)
- Jialei Yang
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China
| | - Zihan Ji
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Fang Gao
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Jiajin Wu
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China
| | - Mulong Du
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zhengdong Zhang
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, China
| | - Lin Yuan
- Department of Urology, Jiangsu Province Hospital of Traditional Chinese Medicine, Nanjing, China
| | - Rui Zheng
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Meilin Wang
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China
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29
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Gou Z, Yang H, Wang R, Wang S, Chen Q, Liu Z, Zhang Y. A new frontier in precision medicine: Exploring the role of extracellular vesicles in chronic obstructive pulmonary disease. Biomed Pharmacother 2024; 174:116443. [PMID: 38513597 DOI: 10.1016/j.biopha.2024.116443] [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: 01/29/2024] [Revised: 03/11/2024] [Accepted: 03/15/2024] [Indexed: 03/23/2024] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory airway disease characterized by progressive respiratory difficulties. It has a high incidence and disability rate worldwide. However, currently there is still a lack of highly effective treatment methods for COPD, only symptom relief is possible. Therefore, there is an urgent need to explore new treatment options. Almost all cells can secrete extracellular vesicles (EVs), which participate in many physiological activities by transporting cargoes and are associated with the pathogenesis of various diseases. Recently, many scholars have extensively studied the relationship between COPD and EVs, which has strongly demonstrated the significant impact of EVs from different sources on the occurrence and development of COPD. Therefore, EVs are a good starting point and new opportunity for the diagnosis and treatment of COPD. In this review, we mainly describe the current mechanisms of EVs in the pathogenesis of COPD, also the relationship between diagnosis, prognosis, and treatment. At the same time, we also introduce some new methods for COPD therapy based on EVs. It is hoped that this article can provide new ideas for future research and contribute to the development of precision medicine.
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Affiliation(s)
- Zixuan Gou
- Department of Pediateic Respiration, Children's Medical Center, The First Hospital of Jilin University, Changchun, China
| | - Hongrun Yang
- Department of Pediateic Respiration, Children's Medical Center, The First Hospital of Jilin University, Changchun, China
| | - Ruijia Wang
- Department of Pediateic Respiration, Children's Medical Center, The First Hospital of Jilin University, Changchun, China
| | - Shihan Wang
- Department of Pediateic Respiration, Children's Medical Center, The First Hospital of Jilin University, Changchun, China
| | - Qirui Chen
- Department of Pediateic Respiration, Children's Medical Center, The First Hospital of Jilin University, Changchun, China
| | - Ziyu Liu
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, China.
| | - Ying Zhang
- Department of Pediateic Respiration, Children's Medical Center, The First Hospital of Jilin University, Changchun, China; Clinical Research Center for Child Health, The First Hospital of Jilin University, Changchun, China.
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30
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Wei G. RNA m6A modification, signals for degradation or stabilisation? Biochem Soc Trans 2024; 52:707-717. [PMID: 38629637 PMCID: PMC11088905 DOI: 10.1042/bst20230574] [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: 12/01/2023] [Revised: 03/24/2024] [Accepted: 04/08/2024] [Indexed: 04/25/2024]
Abstract
The RNA modification N6-methyladenosine (m6A) is conserved across eukaryotes, and profoundly influences RNA metabolism, including regulating RNA stability. METTL3 and METTL14, together with several accessory components, form a 'writer' complex catalysing m6A modification. Conversely, FTO and ALKBH5 function as demethylases, rendering m6A dynamic. Key to understanding the functional significance of m6A is its 'reader' proteins, exemplified by YTH-domain-containing proteins (YTHDFs) canonical reader and insulin-like growth factor 2 mRNA-binding proteins (IGF2BPs) non-canonical reader. These proteins play a crucial role in determining RNA stability: YTHDFs mainly promote mRNA degradation through different cytoplasmic pathways, whereas IGF2BPs function to maintain mRNA stability. Additionally, YTHDC1 functions within the nucleus to degrade or protect certain m6A-containing RNAs, and other non-canonical readers also contribute to RNA stability regulation. Notably, m6A regulates retrotransposon LINE1 RNA stability and/or transcription via multiple mechanisms. However, conflicting observations underscore the complexities underlying m6A's regulation of RNA stability depending upon the RNA sequence/structure context, developmental stage, and/or cellular environment. Understanding the interplay between m6A and other RNA regulatory elements is pivotal in deciphering the multifaceted roles m6A plays in RNA stability regulation and broader cellular biology.
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Affiliation(s)
- Guifeng Wei
- Department of Biochemistry, University of Oxford, Oxford OX1 3QU, U.K
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31
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Hara T, Meng S, Sato H, Tatekawa S, Sasaki K, Takeda Y, Tsuji Y, Arao Y, Ofusa K, Kitagawa T, Yamada D, Takahashi H, Kobayashi S, Motooka D, Suzuki Y, Rennie S, Uchida S, Mori M, Ogawa K, Doki Y, Eguchi H, Ishii H. High N6-methyladenosine-activated TCEAL8 mRNA is a novel pancreatic cancer marker. Cancer Sci 2024. [PMID: 38659235 DOI: 10.1111/cas.16152] [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: 12/05/2023] [Revised: 02/22/2024] [Accepted: 03/03/2024] [Indexed: 04/26/2024] Open
Abstract
N6-methyladenosine (m6A) is an RNA modification involved in RNA processing and widely found in transcripts. In cancer cells, m6A is upregulated, contributing to their malignant transformation. In this study, we analyzed gene expression and m6A modification in cancer tissues, ducts, and acinar cells derived from pancreatic cancer patients using MeRIP-seq. We found that dozens of RNAs highly modified by m6A were detected in cancer tissues compared with ducts and acinar cells. Among them, the m6A-activated mRNA TCEAL8 was observed, for the first time, as a potential marker gene in pancreatic cancer. Spatially resolved transcriptomic analysis showed that TCEAL8 was highly expressed in specific cells, and activation of cancer-related signaling pathways was observed relative to TCEAL8-negative cells. Furthermore, among TCEAL8-positive cells, the cells expressing the m6A-modifying enzyme gene METTL3 showed co-activation of Notch and mTOR signaling, also known to be involved in cancer metastasis. Overall, these results suggest that m6A-activated TCEAL8 is a novel marker gene involved in the malignant transformation of pancreatic cancer.
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Affiliation(s)
- Tomoaki Hara
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Sikun Meng
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hiromichi Sato
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Shotaro Tatekawa
- Department of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Kazuki Sasaki
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yu Takeda
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yoshiko Tsuji
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yasuko Arao
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Ken Ofusa
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Prophoenix Division, Food and Life-Science Laboratory, IDEA Consultants, Inc., Osaka, Osaka, Japan
| | - Toru Kitagawa
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Kyowa-kai Medical Corporation, Kawanishi, Hyogo, Japan
| | - Daisaku Yamada
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hidenori Takahashi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Shogo Kobayashi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Daisuke Motooka
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Yutaka Suzuki
- Laboratory of Systems Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa-shi, Chiba, Japan
| | - Sarah Rennie
- Section for Computational and RNA Biology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Shizuka Uchida
- Department of Clinical Medicine, Center for RNA Medicine, Aalborg University, Copenhagen SV, Denmark
| | - Masaki Mori
- Tokai University Graduate School of Medicine, Isehara, Kanagawa, Japan
| | - Kazuhiko Ogawa
- Department of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hidetoshi Eguchi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hideshi Ishii
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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Huang S, Li Y, Wang B, Zhou Z, Li Y, Shen L, Cong J, Han L, Xiang X, Xia J, He D, Zhao Z, Zhou Y, Li Q, Dai G, Shen H, Lin T, Wu A, Jia J, Xiao D, Li J, Zhao W, Lin X. Hepatocyte-specific METTL3 ablation by Alb-iCre mice (GPT), but not by Alb-Cre mice (JAX), resulted in acute liver failure (ALF) and postnatal lethality. Aging (Albany NY) 2024; 16:7217-7248. [PMID: 38656880 PMCID: PMC11087113 DOI: 10.18632/aging.205753] [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: 11/16/2023] [Accepted: 02/20/2024] [Indexed: 04/26/2024]
Abstract
AIM In 2019, to examine the functions of METTL3 in liver and underlying mechanisms, we generated mice with hepatocyte-specific METTL3 homozygous knockout (METTL3Δhep) by simultaneously crossing METTL3fl/fl mice with Alb-iCre mice (GPT) or Alb-Cre mice (JAX), respectively. In this study, we explored the potential reasons why hepatocyte-specific METTL3 homozygous disruption by Alb-iCre mice (GPT), but not by Alb-Cre mice (JAX), resulted in acute liver failure (ALF) and then postnatal lethality. MAIN METHODS Mice with hepatocyte-specific METTL3 knockout were generated by simultaneously crossing METTL3fl/fl mice with Alb-iCre mice (GPT; Strain No. T003814) purchased from the GemPharmatech Co., Ltd., (Nanjing, China) or with Alb-Cre mice (JAX; Strain No. 003574) obtained from The Jackson Laboratory, followed by combined-phenotype analysis. The publicly available RNA-sequencing data deposited in the NCBI Gene Expression Omnibus (GEO) database under the accession No.: GSE198512 (postnatal lethality), GSE197800 (postnatal survival) and GSE176113 (postnatal survival) were mined to explore the potential reasons why hepatocyte-specific METTL3 homozygous deletion by Alb-iCre mice (GPT), but not by Alb-Cre mice (JAX), leads to ALF and then postnatal lethality. KEY FINDINGS Firstly, we observed that hepatocyte-specific METTL3 homozygous deficiency by Alb-iCre mice (GPT) or by Alb-Cre mice (JAX) caused liver injury, abnormal lipid accumulation and apoptosis. Secondly, we are surprised to find that hepatocyte-specific METTL3 homozygous deletion by Alb-iCre mice (GPT), but not by Alb-Cre mice (JAX), led to ALF and then postnatal lethality. Our findings clearly demonstrated that METTL3Δhep mice (GPT), which are about to die, exhibited the severe destruction of liver histological structure, suggesting that METTL3Δhep mice (GPT) nearly lose normal liver function, which subsequently contributes to ALF, followed by postnatal lethality. Finally, we unexpectedly found that as the compensatory growth responses of hepatocytes to liver injury induced by METTL3Δhep (GPT), the proliferation of METTL3Δhep hepatocytes (GPT), unlike METTL3Δhep hepatocytes (JAX), was not evidenced by the significant increase of Ki67-positive hepatocytes, not accompanied by upregulation of cell-cycle-related genes. Moreover, GO analysis revealed that upregulated genes in METTL3Δhep livers (GPT), unlike METTL3Δhep livers (JAX), are not functionally enriched in terms associated with cell cycle, cell division, mitosis, microtubule cytoskeleton organization, spindle organization, chromatin segregation and organization, and nuclear division, consistent with the loss of compensatory proliferation of METTL3Δhep hepatocytes (GPT) observed in vivo. Thus, obviously, the loss of the compensatory growth capacity of METTL3Δhep hepatocytes (GPT) in response to liver injury might contribute to, at least partially, ALF and subsequently postnatal lethality of METTL3Δhep mice (GPT). SIGNIFICANCE These findings from this study and other labs provide strong evidence that these phenotypes (i.e., ALF and postnatal lethality) of METTL3Δhep mice (GPT) might be not the real functions of METTL3, and closely related with Alb-iCre mice (GPT), suggesting that we should remind researchers to use Alb-iCre mice (GPT) with caution to knockout gene in hepatocytes in vivo.
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Affiliation(s)
- Shihao Huang
- Cancer Research Institute, Experimental Education and Administration Center, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yingchun Li
- Cancer Research Institute, Experimental Education and Administration Center, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
- Southern Medical University Hospital of Integrated Traditional Chinese and Western Medicine, Southern Medical University, Guangzhou 510315, China
| | - Bingjie Wang
- Cancer Research Institute, Experimental Education and Administration Center, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Zhihao Zhou
- Cancer Research Institute, Experimental Education and Administration Center, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yonglong Li
- Cancer Research Institute, Experimental Education and Administration Center, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
- Laboratory Animal Management Center, Southern Medical University, Guangzhou 510515, China
| | - Lingjun Shen
- Department of Tuberculosis, Yunnan Clinical Medical Center for Infectious Diseases, The Third People's Hospital of Kunming (The Sixth Affiliated Hospital of Dali University), Kunming 650041, China
| | - Jinge Cong
- Cancer Research Institute, Experimental Education and Administration Center, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
- Laboratory Animal Management Center, Southern Medical University, Guangzhou 510515, China
| | - Liuxin Han
- Yunnan Clinical Medical Center for Infectious Diseases, The Third People’s Hospital of Kunming (The Sixth Affiliated Hospital of Dali University), Kunming 650041, China
| | - Xudong Xiang
- Department of Thoracic Surgery, Peking University Cancer Hospital Yunnan (Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University), Kunming 650118, China
| | - Jiawei Xia
- Yunnan Clinical Medical Center for Infectious Diseases, The Third People’s Hospital of Kunming (The Sixth Affiliated Hospital of Dali University), Kunming 650041, China
| | - Danhua He
- Cancer Research Institute, Experimental Education and Administration Center, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Zhanlin Zhao
- Department of Gastrointestinal Oncology, Peking University Cancer Hospital Yunnan (Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University), Kunming 650118, China
| | - Ying Zhou
- Cancer Research Institute, Experimental Education and Administration Center, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Qiwen Li
- Cancer Research Institute, Experimental Education and Administration Center, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Guanqi Dai
- Cancer Research Institute, Experimental Education and Administration Center, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Hanzhang Shen
- Yunnan Clinical Medical Center for Infectious Diseases, The Third People’s Hospital of Kunming (The Sixth Affiliated Hospital of Dali University), Kunming 650041, China
| | - Taoyan Lin
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Aibing Wu
- Central People’s Hospital of Zhanjiang, Zhanjiang 524000, China
| | - Junshuang Jia
- Cancer Research Institute, Experimental Education and Administration Center, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Dong Xiao
- Cancer Research Institute, Experimental Education and Administration Center, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
- Laboratory Animal Management Center, Southern Medical University, Guangzhou 510515, China
| | - Jing Li
- Radiotherapy Center, the First People’s Hospital of Chenzhou, Xiangnan University, Chenzhou 423000, China
| | - Wentao Zhao
- Department of Gastrointestinal Oncology, Peking University Cancer Hospital Yunnan (Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University), Kunming 650118, China
| | - Xiaolin Lin
- Southern Medical University Hospital of Integrated Traditional Chinese and Western Medicine, Southern Medical University, Guangzhou 510315, China
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Liu Y, Goebel GL, Kanis L, Hastürk O, Kemker C, Wu P. Aminothiazolone Inhibitors Disrupt the Protein-RNA Interaction of METTL16 and Modulate the m 6A RNA Modification. JACS AU 2024; 4:1436-1449. [PMID: 38665670 PMCID: PMC11040665 DOI: 10.1021/jacsau.3c00832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 04/28/2024]
Abstract
Targeting RNA-binding and modifying proteins via small molecules to modulate post-transcriptional modifications have emerged as a new frontier for chemical biology and therapeutic research. One such RNA-binding protein that regulates the most prevalent eukaryotic RNA modification, N6-methyladenosine (m6A), is the methyltransferase-like protein 16 (METTL16), which plays an oncogenic role in cancers by cofunctioning with other nucleic acid-binding proteins. To date, no potent small-molecule inhibitor of METTL16 or modulator interfering with the METTL16-RNA interaction has been reported and validated, highlighting the unmet need to develop such small molecules to investigate the METTL16-involved regulatory network. Herein, we described the identification of a series of first-in-class aminothiazolone METTL16 inhibitors via a discovery pipeline that started with a fluorescence-polarization (FP)-based screening. Structural optimization of the initial hit yielded inhibitors, such as compound 45, that showed potent single-digit micromolar inhibition activity against the METTL16-RNA binding. The identified aminothiazolone inhibitors can be useful probes to elucidate the biological function of METTL16 upon perturbation and evaluate the therapeutic potential of METTL16 inhibition via small molecules at the post-transcriptional level.
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Affiliation(s)
- Yang Liu
- Chemical
Genomics Centre, Max Planck Institute of
Molecular Physiology, Dortmund 44227, Germany
- Department
of Chemical Biology, Max Planck Institute
of Molecular Physiology, Dortmund 44227, Germany
- Faculty
of Chemistry and Chemical Biology, TU Dortmund
University, Dortmund 44227, Germany
| | - Georg L. Goebel
- Chemical
Genomics Centre, Max Planck Institute of
Molecular Physiology, Dortmund 44227, Germany
- Department
of Chemical Biology, Max Planck Institute
of Molecular Physiology, Dortmund 44227, Germany
- Faculty
of Chemistry and Chemical Biology, TU Dortmund
University, Dortmund 44227, Germany
| | - Laurin Kanis
- Chemical
Genomics Centre, Max Planck Institute of
Molecular Physiology, Dortmund 44227, Germany
- Department
of Chemical Biology, Max Planck Institute
of Molecular Physiology, Dortmund 44227, Germany
- Faculty
of Chemistry and Chemical Biology, TU Dortmund
University, Dortmund 44227, Germany
| | - Oguz Hastürk
- Chemical
Genomics Centre, Max Planck Institute of
Molecular Physiology, Dortmund 44227, Germany
- Department
of Chemical Biology, Max Planck Institute
of Molecular Physiology, Dortmund 44227, Germany
- Faculty
of Chemistry and Chemical Biology, TU Dortmund
University, Dortmund 44227, Germany
| | - Claus Kemker
- Chemical
Genomics Centre, Max Planck Institute of
Molecular Physiology, Dortmund 44227, Germany
- Department
of Chemical Biology, Max Planck Institute
of Molecular Physiology, Dortmund 44227, Germany
- Faculty
of Chemistry and Chemical Biology, TU Dortmund
University, Dortmund 44227, Germany
| | - Peng Wu
- Chemical
Genomics Centre, Max Planck Institute of
Molecular Physiology, Dortmund 44227, Germany
- Department
of Chemical Biology, Max Planck Institute
of Molecular Physiology, Dortmund 44227, Germany
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Xie X, Wei Q, Han J, Fang X, Yang W, Zhou X, Wang Y, Weng X. Steric hindrance of N6-methyl in m 6A and its application for specific loci detection. Chem Commun (Camb) 2024; 60:4479-4482. [PMID: 38564258 DOI: 10.1039/d4cc01041h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
We found that the N6 methyl group of N6-methyladenine is able to hinder the methylation of N6-methyladenine at the N1 position by DMS. Based on this, we have devised a novel method for detecting N6-methyladenine, which was successfully applied to identify specific m6A loci in 28S rRNA.
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Affiliation(s)
- Xiaoyi Xie
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China.
| | - Qi Wei
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China.
| | - Jingyu Han
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China.
| | - Xin Fang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China.
| | - Wei Yang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China.
| | - Xiang Zhou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China.
| | - Yafen Wang
- School of Public Health, Wuhan University, Wuhan 430071, Hubei, China.
| | - Xiaocheng Weng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China.
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35
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Han X, Ren C, Jiang A, Sun Y, Lu J, Ling X, Lu C, Yu Z. Arginine methylation of ALKBH5 by PRMT6 promotes breast tumorigenesis via LDHA-mediated glycolysis. Front Med 2024; 18:344-356. [PMID: 38466502 DOI: 10.1007/s11684-023-1028-4] [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: 01/05/2023] [Accepted: 08/16/2023] [Indexed: 03/13/2024]
Abstract
ALKBH5 is a master regulator of N6-methyladenosine (m6A) modification, which plays a crucial role in many biological processes. Here, we show that ALKBH5 is required for breast tumor growth. Interestingly, PRMT6 directly methylates ALKBH5 at R283, which subsequently promotes breast tumor growth. Furthermore, arginine methylation of ALKBH5 by PRMT6 increases LDHA RNA stability via m6A demethylation, leading to increased aerobic glycolysis. Moreover, PRMT6-mediated ALKBH5 arginine methylation is confirmed in PRMT6-knockout mice. Collectively, these findings identify a PRMT6-ALKBH5-LDHA signaling axis as a novel target for the treatment of breast cancer.
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Affiliation(s)
- Xue Han
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, 261053, China
| | - Chune Ren
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, 261053, China
| | - Aifang Jiang
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, 261053, China
| | - Yonghong Sun
- Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, 261053, China
| | - Jiayi Lu
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, 261053, China
| | - Xi Ling
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, 261053, China
| | - Chao Lu
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, 261053, China
| | - Zhenhai Yu
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, 261053, China.
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36
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Li J, Wang Z, Tan H, Tang M. ALKBH5-mediated m6A demethylation of pri-miR-199a-5p exacerbates myocardial ischemia/reperfusion injury by regulating TRAF3-mediated pyroptosis. J Biochem Mol Toxicol 2024; 38:e23710. [PMID: 38605440 DOI: 10.1002/jbt.23710] [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: 12/28/2023] [Revised: 02/22/2024] [Accepted: 03/29/2024] [Indexed: 04/13/2024]
Abstract
Myocardial ischemia‒reperfusion injury (MI/RI) is closely related to pyroptosis. alkB homolog 5 (ALKBH5) is abnormally expressed in the MI/RI models. However, the detailed molecular mechanism of ALKBH5 in MI/RI has not been elucidated. In this study, rats and H9C2 cells served as experimental subjects and received MI/R induction and H/R induction, respectively. The abundance of the targeted molecules was evaluated using RT-qPCR, Western blotting, immunohistochemistry, immunofluorescence, and enzyme-linked immunosorbent assay. The heart functions of the rats were evaluated using echocardiography, and heart injury was evaluated. Cell viability and pyroptosis were determined using cell counting Kit-8 and flow cytometry, respectively. Total m6A modification was measured using a commercial kit, and pri-miR-199a-5p m6A modification was detected by Me-RNA immunoprecipitation (RIP) assay. The interactions among the molecules were validated using RIP and luciferase experiments. ALKBH5 was abnormally highly expressed in H/R-induced H9C2 cells and MI/RI rats. ALKBH5 silencing improved injury and inhibited pyroptosis. ALKBH5 reduced pri-miR-199a-5p m6A methylation to block miR-199a-5p maturation and inhibit its expression. TNF receptor-associated Factor 3 (TRAF3) is a downstream gene of miR-199a-5p. Furthermore, in H/R-induced H9C2 cells, the miR-199a-5p inhibitor-mediated promotion of pyroptosis was reversed by ALKBH5 silencing, and the TRAF3 overexpression-mediated promotion of pyroptosis was offset by miR-199a-5p upregulation. ALKBH5 silencing inhibited pri-miR-199a-5p expression and enhanced pri-miR-199a-5p m6A modification to promote miR-199a-5p maturation and enhance its expression, thereby suppressing pyroptosis to alleviate MI/RI through decreasing TRAF3 expression.
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Affiliation(s)
- Jiarong Li
- Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, P.R. China
| | - Zhirong Wang
- Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, P.R. China
| | - Huayi Tan
- Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, P.R. China
| | - Mi Tang
- Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, P.R. China
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37
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Nakashima M, Suga N, Yoshikawa S, Ikeda Y, Matsuda S. Potential Molecular Mechanisms of Alcohol Use Disorder with Non-Coding RNAs and Gut Microbiota for the Development of Superior Therapeutic Application. Genes (Basel) 2024; 15:431. [PMID: 38674366 PMCID: PMC11049149 DOI: 10.3390/genes15040431] [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: 02/16/2024] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 04/28/2024] Open
Abstract
Many investigations have evaluated the expression of noncoding RNAs (ncRNAs) as well as their related molecular functions and biological machineries in individuals with alcohol dependence. Alcohol dependence may be one of the most prevailing psychological disorders globally, and its pathogenesis is intricate and inadequately comprehended. There is substantial evidence indicating significant links between multiple genetic factors and the development of alcohol dependence. In particular, the critical roles of ncRNAs have been emphasized in the pathology of mental illnesses, probably including alcohol dependence. In the comprehension of the action of ncRNAs and their machineries of modification, furthermore, they have emerged as therapeutic targets for a variety of psychiatric illnesses, including alcohol dependence. It is worth mentioning that the dysregulated expression of ncRNAs has been regularly detected in individuals with alcohol dependence. An in-depth knowledge of the roles of ncRNAs and m6A modification may be valuable for the development of a novel treatment against alcohol dependence. In general, a more profound understanding of the practical roles of ncRNAs might make important contributions to the precise diagnosis and/or actual management of alcohol dependence. Here, in this review, we mostly focused on up-to-date knowledge regarding alterations and/or modifications in the expression of ncRNAs in individuals with alcohol dependence. Then, we present prospects for future research and therapeutic applications with a novel concept of the engram system.
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Affiliation(s)
| | | | | | | | - Satoru Matsuda
- Department of Food Science and Nutrition, Nara Women’s University, Kita-Uoya Nishimachi, Nara 630-8506, Japan
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Wang J, Zhou Y, Zhang M, Wu Y, Wu Q, Su W, Xu M, Wu J, Zhang M, Shuai J, Tang W, Lv J, Wu M, Xia Z. YTHDF1-CLOCK axis contributes to pathogenesis of allergic airway inflammation through LLPS. Cell Rep 2024; 43:113947. [PMID: 38492220 DOI: 10.1016/j.celrep.2024.113947] [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: 07/21/2023] [Revised: 01/23/2024] [Accepted: 02/27/2024] [Indexed: 03/18/2024] Open
Abstract
N6-methyladenosine (m6A) modification has been implicated in many cell processes and diseases. YTHDF1, a translation-facilitating m6A reader, has not been previously shown to be related to allergic airway inflammation. Here, we report that YTHDF1 is highly expressed in allergic airway epithelial cells and asthmatic patients and that it influences proinflammatory responses. CLOCK, a subunit of the circadian clock pathway, is the direct target of YTHDF1. YTHDF1 augments CLOCK translation in an m6A-dependent manner. Allergens enhance the liquid-liquid phase separation (LLPS) of YTHDF1 and drive the formation of a complex comprising dimeric YTHDF1 and CLOCK mRNA, which is distributed to stress granules. Moreover, YTHDF1 strongly activates NLRP3 inflammasome production and interleukin-1β secretion leading to airway inflammatory responses, but these phenotypes are abolished by deleting CLOCK. These findings demonstrate that YTHDF1 is an important regulator of asthmatic airway inflammation, suggesting a potential therapeutic target for allergic airway inflammation.
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Affiliation(s)
- Jing Wang
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yao Zhou
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Meng Zhang
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yujiao Wu
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qun Wu
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wen Su
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min Xu
- Department of Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinhong Wu
- Department of Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min Zhang
- Department of Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianwei Shuai
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
| | - Wei Tang
- Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Jiajia Lv
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Min Wu
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China.
| | - Zhenwei Xia
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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39
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Fang W, Peng P, Lin K, Xiao F, He W, He M, Wei Q. m6A methylation modification and immune infiltration analysis in osteonecrosis of the femoral head. J Orthop Surg Res 2024; 19:183. [PMID: 38491545 PMCID: PMC10943872 DOI: 10.1186/s13018-024-04590-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 01/28/2024] [Indexed: 03/18/2024] Open
Abstract
Osteonecrosis of the femoral head (ONFH) is a elaborate hip disease characterized by collapse of femoral head and osteoarthritis. RNA N6-methyladenosine (m6A) plays a crucial role in a lot of biological processes within eukaryotic cells. However, the role of m6A in the regulation of ONFH remains unclear. In this study, we identified the m6A regulators in ONFH and performed subtype classification. We identified 7 significantly differentially expressed m6A regulators through the analysis of differences between ONFH and normal samples in the Gene Expression Omnibus (GEO) database. A random forest algorithm was employed to monitor these regulators to assess the risk of developing ONFH. We constructed a nomogram based on these 7 regulators. The decision curve analysis suggested that patients can benefit from the nomogram model. We classified the ONFH samples into two m6A models according to these 7 regulators through consensus clustering algorithm. After that, we evaluated those two m6A patterns using principal component analysis. We assessed the scores of those two m6A patterns and their relationship with immune infiltration. We observed a higher m6A score of type A than that of type B. Finally, we performed a cross-validation of crucial m6A regulatory factors in ONFH using external datasets and femoral head bone samples. In conclusion, we believed that the m6A pattern could provide a novel diagnostic strategy and offer new insights for molecularly targeted therapy of ONFH.
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Affiliation(s)
- Weihua Fang
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Peng Peng
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Kun Lin
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Fangjun Xiao
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei He
- Guangdong Research Institute for Orthopedics and Traumatology of Chinese Medicine, Guangzhou, China
- Department of Orthopaedics, The Third Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Mincong He
- Guangdong Research Institute for Orthopedics and Traumatology of Chinese Medicine, Guangzhou, China.
- Department of Orthopaedics, The Third Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Qiushi Wei
- Guangdong Research Institute for Orthopedics and Traumatology of Chinese Medicine, Guangzhou, China.
- Department of Orthopaedics, The Third Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China.
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40
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Salvetti A. [Epitranscriptomics]. Med Sci (Paris) 2024; 40:287. [PMID: 38520105 DOI: 10.1051/medsci/2024023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2024] Open
Affiliation(s)
- Anna Salvetti
- Inserm U1111 CNRS UMR 5308, Centre International de Recherche en Infectiologie (CIRI), Lyon, France
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41
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Hobble HV, Schaner Tooley CE. Intrafamily heterooligomerization as an emerging mechanism of methyltransferase regulation. Epigenetics Chromatin 2024; 17:5. [PMID: 38429855 PMCID: PMC10908127 DOI: 10.1186/s13072-024-00530-0] [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: 12/15/2023] [Accepted: 02/10/2024] [Indexed: 03/03/2024] Open
Abstract
Protein and nucleic acid methylation are important biochemical modifications. In addition to their well-established roles in gene regulation, they also regulate cell signaling, metabolism, and translation. Despite this high biological relevance, little is known about the general regulation of methyltransferase function. Methyltransferases are divided into superfamilies based on structural similarities and further classified into smaller families based on sequence/domain/target similarity. While members within superfamilies differ in substrate specificity, their structurally similar active sites indicate a potential for shared modes of regulation. Growing evidence from one superfamily suggests a common regulatory mode may be through heterooligomerization with other family members. Here, we describe examples of methyltransferase regulation through intrafamily heterooligomerization and discuss how this can be exploited for therapeutic use.
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Affiliation(s)
- Haley V Hobble
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, 14203, USA
| | - Christine E Schaner Tooley
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, 14203, USA.
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42
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Sang A, Zhang J, Zhang M, Xu D, Xuan R, Wang S, Song X, Li X. METTL4 mediated-N6-methyladenosine promotes acute lung injury by activating ferroptosis in alveolar epithelial cells. Free Radic Biol Med 2024; 213:90-101. [PMID: 38224757 DOI: 10.1016/j.freeradbiomed.2024.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/27/2023] [Accepted: 01/10/2024] [Indexed: 01/17/2024]
Abstract
Sepsis-induced acute lung injury has been deemed to be an life-threatening pulmonary dysfunction caused by a dysregulated host response to infection. The modification of N6-Methyladenosine (m6A) is implicated in several biological processes, including mitochondrial transcription and ferroptosis. Ferroptosis is an iron-dependent type of programed cell death, which plays a role in sepsis-induced acute lung injury (ALI). Nuclear factor erythroid 2-related factor 2 (Nrf2) is a crucial regulator of intracellular oxidative homeostasis, linked to ferroptosis resistance. This research aims to explore the effect of m6A in ferroptosis in sepsis-induced ALI. First, we found a time-dependent dynamic alteration on pulmonary methylation level during sepsis-induced ALI. We identified METTL4 as a differentially expressed gene in ALI mice using m6A sequencing and RNA-sequencing, and revealed the methylation of several ferroptosis related genes (Nrf2). Thus, we generated METTL4 deficiency mice and found that METTL4 knockdown alleviated ferroptosis, as evidenced by lipid ROS, MDA, Fe2+, as well as alterations in GPX4 and SLC7A11 protein expression. Consistently, we found that METTL4 silencing could decrease ferroptosis sensitivity in LPS-induced TC-1 cells. Furthermore, both the dual-luciferase reporter assay and rescue experiments indicated that METTL4 mediated the N6-methyladenosine of Nrf2 3'UTR, then YTHDF2 binded with the m6A site, promoting the degradation of Nrf2. In conclusion, we revealed that METTL4 promoted alveolar epithelial cells ferroptosis in sepsis-induced lung injury via N6-methyladenosine of Nrf2, which might provide a novel approach to therapeutic strategies for sepsis-induced ALI.
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Affiliation(s)
- Aming Sang
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan, China, 430071; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan, China, 430071
| | - Jing Zhang
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan, China, 430071; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan, China, 430071
| | - Mi Zhang
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan, China, 430071; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan, China, 430071
| | - Dawei Xu
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071
| | - Rui Xuan
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071
| | - Shun Wang
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071.
| | - Xuemin Song
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan, China, 430071; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan, China, 430071.
| | - Xinyi Li
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China, 430071; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan, China, 430071; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan, China, 430071.
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Liu R, Li Y, Zheng Q, Ding M, Zhou H, Li X. Epigenetic modification in liver fibrosis: Promising therapeutic direction with significant challenges ahead. Acta Pharm Sin B 2024; 14:1009-1029. [PMID: 38486982 PMCID: PMC10935124 DOI: 10.1016/j.apsb.2023.10.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/18/2023] [Accepted: 09/13/2023] [Indexed: 03/17/2024] Open
Abstract
Liver fibrosis, characterized by scar tissue formation, can ultimately result in liver failure. It's a major cause of morbidity and mortality globally, often associated with chronic liver diseases like hepatitis or alcoholic and non-alcoholic fatty liver diseases. However, current treatment options are limited, highlighting the urgent need for the development of new therapies. As a reversible regulatory mechanism, epigenetic modification is implicated in many biological processes, including liver fibrosis. Exploring the epigenetic mechanisms involved in liver fibrosis could provide valuable insights into developing new treatments for chronic liver diseases, although the current evidence is still controversial. This review provides a comprehensive summary of the regulatory mechanisms and critical targets of epigenetic modifications, including DNA methylation, histone modification, and RNA modification, in liver fibrotic diseases. The potential cooperation of different epigenetic modifications in promoting fibrogenesis was also highlighted. Finally, available agonists or inhibitors regulating these epigenetic mechanisms and their potential application in preventing liver fibrosis were discussed. In summary, elucidating specific druggable epigenetic targets and developing more selective and specific candidate medicines may represent a promising approach with bright prospects for the treatment of chronic liver diseases.
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Affiliation(s)
- Runping Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102400, China
| | - Yajing Li
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 102400, China
| | - Qi Zheng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102400, China
| | - Mingning Ding
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 102400, China
| | - Huiping Zhou
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 22460, USA
| | - Xiaojiaoyang Li
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 102400, China
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Zhang X, Nie Y, Zhang R, Yu J, Ge J. Reduced DNMT1 levels induce cell apoptosis via upregulation of METTL3 in cardiac hypertrophy. Heliyon 2024; 10:e24572. [PMID: 38314261 PMCID: PMC10837504 DOI: 10.1016/j.heliyon.2024.e24572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 12/18/2023] [Accepted: 01/10/2024] [Indexed: 02/06/2024] Open
Abstract
DNA methylation is also involved in the development and progression of cardiac diseases. Although studies have shown that DNA methylation and RNA m6A methylation play an important role in the development of myocardial hypertrophy, whether DNA methylation and RNA m6A methylation have a coordinated role in the development of myocardial hypertrophy and influence each other is still unknown. Here, we found that DNMT1 expression was downregulated in TAC mice and Ang II-treated NRCMs. Moreover, DNMT1 overexpression inhibited Ang II-induced apoptosis of NRCMs. Furthermore, we found that the expression of METTL3 was up-regulated after inhibiting the expression of DNMT1 by a DNMT1 inhibitor or small interfering RNA. In addition, ectopic expression DNMT1 inhibited METTL3 expression in NRCMs. Furthermore, METTL3 expression was elevated in NRCMs treated with Ang II, and suppression of METTL3 inhibited cell apoptosis induced by Ang II in NRCMs.In addition, this study revealed that the DNMT1/METTL3 pathway affected Ang II-induced apoptosis in NRCMs. Finally, this study found that DNMT1, but not METTL3, might directly regulated the ANP and BNP expression. Collectively, our findings revealed the role of the DNMT1/METTL3 pathway in cardiac hypertrophy and provided a novel molecular mechanism describing the physiological and pathological processes.
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Affiliation(s)
| | | | - Rui Zhang
- Department of Cardiac surgery, The First Affiliated Hospital of USTC, Hefei, 230001, China
| | - Jiquan Yu
- Department of Cardiac surgery, The First Affiliated Hospital of USTC, Hefei, 230001, China
| | - Jianjun Ge
- Department of Cardiac surgery, The First Affiliated Hospital of USTC, Hefei, 230001, China
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45
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Xiong YW, Zhu HL, Zhang J, Geng H, Tan LL, Zheng XM, Li H, Fan LL, Wang XR, Zhang XD, Wang KW, Chang W, Zhang YF, Yuan Z, Duan ZL, Cao YX, He XJ, Xu DX, Wang H. Multigenerational paternal obesity enhances the susceptibility to male subfertility in offspring via Wt1 N6-methyladenosine modification. Nat Commun 2024; 15:1353. [PMID: 38355624 PMCID: PMC10866985 DOI: 10.1038/s41467-024-45675-4] [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: 04/24/2023] [Accepted: 01/30/2024] [Indexed: 02/16/2024] Open
Abstract
There is strong evidence that obesity is a risk factor for poor semen quality. However, the effects of multigenerational paternal obesity on the susceptibility to cadmium (a reproductive toxicant)-induced spermatogenesis disorders in offspring remain unknown. Here, we show that, in mice, spermatogenesis and retinoic acid levels become progressively lower as the number of generations exposed to a high-fat diet increase. Furthermore, exposing several generations of mice to a high fat diet results in a decrease in the expression of Wt1, a transcription factor upstream of the enzymes that synthesize retinoic acid. These effects can be rescued by injecting adeno-associated virus 9-Wt1 into the mouse testes of the offspring. Additionally, multigenerational paternal high-fat diet progressively increases METTL3 and Wt1 N6-methyladenosine levels in the testes of offspring mice. Mechanistically, treating the fathers with STM2457, a METTL3 inhibitor, restores obesity-reduced sperm count, and decreases Wt1 N6-methyladenosine level in the mouse testes of the offspring. A case-controlled study shows that human donors who are overweight or obese exhibit elevated N6-methyladenosine levels in sperm and decreased sperm concentration. Collectively, these results indicate that multigenerational paternal obesity enhances the susceptibility of the offspring to spermatogenesis disorders by increasing METTL3-mediated Wt1 N6-methyladenosine modification.
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Affiliation(s)
- Yong-Wei Xiong
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China
| | - Hua-Long Zhu
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China
| | - Jin Zhang
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China
| | - Hao Geng
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Hefei, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Hefei, China
| | - Lu-Lu Tan
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China
| | - Xin-Mei Zheng
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China
| | - Hao Li
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China
| | - Long-Long Fan
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China
| | - Xin-Run Wang
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China
| | - Xu-Dong Zhang
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China
| | - Kai-Wen Wang
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China
| | - Wei Chang
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China
| | - Yu-Feng Zhang
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China
| | - Zhi Yuan
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China
| | - Zong-Liu Duan
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Hefei, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Hefei, China
| | - Yun-Xia Cao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Hefei, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Hefei, China
| | - Xiao-Jin He
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Hefei, China.
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - De-Xiang Xu
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China.
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China.
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Hefei, China.
| | - Hua Wang
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China.
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China.
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Hefei, China.
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Gao L, Qiao L, Li Y, Jia L, Cui W, Yang J, Wu C, Wang L. ALKBH5 regulates paclitaxel resistance in NSCLC via inhibiting CEMIP-mediated EMT. Toxicol Appl Pharmacol 2024; 483:116807. [PMID: 38199493 DOI: 10.1016/j.taap.2024.116807] [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: 10/30/2023] [Revised: 12/14/2023] [Accepted: 01/07/2024] [Indexed: 01/12/2024]
Abstract
N6-methyladenosine (m6A) is the most prevalent mRNA modification, and it is verified to be closely correlated with cancer occurrence and progression. The m6A demethylase ALKBH5 (alkB homolog 5) is dysregulated in various cancers. However, the role and underlying mechanism of ALKBH5 in the pathogenesis and especially the chemo-resistance of non-small cell lung cancer (NSCLC) is poorly elucidated. The current study shows that ALKBH5 expression is reduced in paclitaxel (PTX) resistant NSCLC cells and down-regulation of ALKBH5 usually implies poor prognosis of NSCLC patients. Over-expression of ALKBH5 in PTX-resistant cells can suppress cell proliferation and enhance chemo-sensitivity, while knockdown of ALKBH5 exerts the opposite effect, which further supports the tumor suppressive role of ALKBH5. Over-expression of ALKBH5 can also reverse the epithelial-mesenchymal transition (EMT) process in PTX-resistant cancer cells. Mechanistically, data from RNA-seq, real-time PCR and western blotting indicate that CEMIP (cell migration inducing hyaluronidase 1), also known as KIAA1199, may be the downstream target of ALKBH5. Furthermore, ALKBH5 negatively regulates the CEMIP level by reducing the stability of CEMIP mRNA. Collectively, the current data demonstrate that the ALKBH5/CEMIP axis modulates the EMT process in NSCLC, which in turn regulates the chemo-sensitivity of cancer cells to PTX.
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Affiliation(s)
- Lingyue Gao
- Department of Pharmacology, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China
| | - Li Qiao
- Department of Pharmacology, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China
| | - Yingying Li
- Department of Pharmacology, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China
| | - Lina Jia
- Department of Pharmacology, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China
| | - Wei Cui
- Department of Pharmacology, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China
| | - Jingyu Yang
- Department of Pharmacology, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China
| | - Chunfu Wu
- Department of Pharmacology, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China
| | - Lihui Wang
- Department of Pharmacology, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China.
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47
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Wu J, Pan J, Zhou W, Ji G, Dang Y. The role of N6-methyladenosine in macrophage polarization: A novel treatment strategy for non-alcoholic steatohepatitis. Biomed Pharmacother 2024; 171:116145. [PMID: 38198958 DOI: 10.1016/j.biopha.2024.116145] [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: 09/12/2023] [Revised: 12/22/2023] [Accepted: 01/05/2024] [Indexed: 01/12/2024] Open
Abstract
RNA methylation modifications, as a widespread type of modification in eukaryotic cells, especially N6-methyladenosine (m6A), are associated with many activities in organisms, including macrophage polarization and progression of non-alcoholic steatohepatitis (NASH). Macrophages in the liver are of diverse origin and complex phenotype, exhibiting different functions in development of NASH. In the review, we discuss the functions of m6A and m6A-related enzymes in macrophage polarization. Furthermore, we retrospect the role of macrophage polarization in NASH. Finally, we discuss the prospects of m6A in macrophages and NASH, and provide guidance for the treatment of NASH.
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Affiliation(s)
- Jiaxuan Wu
- Institute of Digestive Diseases, Longhua Hospital, China-Canada Center of Research for Digestive Diseases (ccCRDD), Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Jiashu Pan
- Institute of Digestive Diseases, Longhua Hospital, China-Canada Center of Research for Digestive Diseases (ccCRDD), Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Wenjun Zhou
- Institute of Digestive Diseases, Longhua Hospital, China-Canada Center of Research for Digestive Diseases (ccCRDD), Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Guang Ji
- Institute of Digestive Diseases, Longhua Hospital, China-Canada Center of Research for Digestive Diseases (ccCRDD), Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China.
| | - Yanqi Dang
- Institute of Digestive Diseases, Longhua Hospital, China-Canada Center of Research for Digestive Diseases (ccCRDD), Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China.
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48
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Wu H, Jiao Y, Guo X, Wu Z, Lv Q. METTL14/miR-29c-3p axis drives aerobic glycolysis to promote triple-negative breast cancer progression though TRIM9-mediated PKM2 ubiquitination. J Cell Mol Med 2024; 28:e18112. [PMID: 38263865 PMCID: PMC10844685 DOI: 10.1111/jcmm.18112] [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: 09/21/2023] [Revised: 11/05/2023] [Accepted: 11/22/2023] [Indexed: 01/25/2024] Open
Abstract
The energy metabolic rearrangement of triple-negative breast cancer (TNBC) from oxidative phosphorylation to aerobic glycolysis is a significant biological feature and can promote the malignant progression. However, there is little knowledge about the functional mechanisms of methyltransferase-like protein 14 (METTL14) mediated contributes to TNBC malignant progression. Our study found that METTL14 expression was significantly upregulated in TNBC tissues and cell lines. Silencing METTL14 significantly inhibited TNBC cell growth and invasion in vitro, as well as suppressed tumour growth. Mechanically, METTL14 was first found to activate miR-29c-3p through m6A and regulate tripartite motif containing 9 (TRIM9) to promote ubiquitination of pyruvate kinase isoform M2 (PKM2) and lead to its transition from tetramer to dimer, resulting in glucose metabolic reprogramming from oxidative phosphorylation to aerobic glycolysis to promote the progress of TNBC. Taken together, these findings reveal important roles of METTL14 in TNBC tumorigenesis and energy metabolism, which might represent a novel potential therapeutic target for TNBC.
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Affiliation(s)
- Hao Wu
- Division of Breast Surgery, Department of General SurgeryWest China Hospital, Sichuan UniversityChengduChina
- Breast Center, West China HospitalSichuan UniversityChengduChina
| | - Yile Jiao
- Division of Breast Surgery, Department of General SurgeryWest China Hospital, Sichuan UniversityChengduChina
- Breast Center, West China HospitalSichuan UniversityChengduChina
| | - Xinyi Guo
- Division of Breast Surgery, Department of General SurgeryWest China Hospital, Sichuan UniversityChengduChina
- Breast Center, West China HospitalSichuan UniversityChengduChina
| | - Zhenru Wu
- Laboratory of Pathology, West China HospitalSichuan UniversityChengduChina
| | - Qing Lv
- Division of Breast Surgery, Department of General SurgeryWest China Hospital, Sichuan UniversityChengduChina
- Breast Center, West China HospitalSichuan UniversityChengduChina
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49
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Meng W, Xiao H, Zhao R, Chen J, Wang Y, Mei P, Li H, Liao Y. METTL3 drives NSCLC metastasis by enhancing CYP19A1 translation and oestrogen synthesis. Cell Biosci 2024; 14:10. [PMID: 38238831 PMCID: PMC10795463 DOI: 10.1186/s13578-024-01194-9] [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: 10/28/2023] [Accepted: 01/10/2024] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND METTL3 plays a significant role as a catalytic enzyme in mediating N6-methyladenosine (m6A) modification, and its importance in tumour progression has been extensively studied in recent years. However, the precise involvement of METTL3 in the regulation of translation in non-small cell lung cancer (NSCLC) remains unclear. RESULTS Here we discovered by clinical investigation that METTL3 expression is correlated with NSCLC metastasis. Ablation of METTL3 in NSCLC cells inhibits invasion and metastasis in vitro and in vivo. Subsequently, through translatomics data mining and experimental validation, we demonstrated that METTL3 enhances the translation of aromatase (CYP19A1), a key enzyme in oestrogen synthesis, thereby promoting oestrogen production and mediating the invasion and metastasis of NSCLC. Mechanistically, METTL3 interacts with translation initiation factors and binds to CYP19A1 mRNA, thus enhancing the translation efficiency of CYP19A1 in an m6A-dependent manner. Pharmacological inhibition of METTL3 enzymatic activity or translation initiation factor eIF4E abolishes CYP19A1 protein synthesis. CONCLUSIONS Our findings indicate the crucial role of METTL3-mediated translation regulation in NSCLC and reveal the significance of METTL3/eIF4E/CYP19A1 signaling as a promising therapeutic target for anti-metastatic strategies against NSCLC.
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Affiliation(s)
- Wangyang Meng
- Department of Thoracic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Han Xiao
- Department of Thoracic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, China.
| | - Rong Zhao
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jiaping Chen
- Department of Cardiothoracic Surgery, Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital), Kunming, Yunnan, China
| | - Yangwei Wang
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Peiyuan Mei
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Hecheng Li
- Department of Thoracic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Yongde Liao
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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50
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Wei H, Xu Y, Lin L, Li Y, Zhu X. A review on the role of RNA methylation in aging-related diseases. Int J Biol Macromol 2024; 254:127769. [PMID: 38287578 DOI: 10.1016/j.ijbiomac.2023.127769] [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: 09/18/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 01/31/2024]
Abstract
Senescence is the underlying mechanism of organism aging and is robustly regulated at the post-transcriptional level. This regulation involves the chemical modifications, of which the RNA methylation is the most common. Recently, a rapidly growing number of studies have demonstrated that methylation is relevant to aging and aging-associated diseases. Owing to the rapid development of detection methods, the understanding on RNA methylation has gone deeper. In this review, we summarize the current understanding on the influence of RNA modification on cellular senescence, with a focus on mRNA methylation in aging-related diseases, and discuss the emerging potential of RNA modification in diagnosis and therapy.
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Affiliation(s)
- Hong Wei
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China; Department of Neurology, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China; Central Laboratory of the Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China
| | - Yuhao Xu
- Medical School, Jiangsu University, Zhenjiang, Jiangsu 212001, China
| | - Li Lin
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China; Central Laboratory of the Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China
| | - Yuefeng Li
- Medical School, Jiangsu University, Zhenjiang, Jiangsu 212001, China.
| | - Xiaolan Zhu
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China; Central Laboratory of the Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China.
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