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Harrahill NJ, Hadden MK. Small molecules that regulate the N 6-methyladenosine RNA modification as potential anti-cancer agents. Eur J Med Chem 2024; 274:116526. [PMID: 38805939 DOI: 10.1016/j.ejmech.2024.116526] [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: 02/16/2024] [Revised: 05/14/2024] [Accepted: 05/20/2024] [Indexed: 05/30/2024]
Abstract
Epitranscriptomics, the field of post-translational RNA modifications, is a burgeoning domain of research that has recently received significant attention for its role in multiple diseases, including cancer. N6-methyladenosine (m6A) is the most prominent post-translational RNA modification and plays a critical role in RNA transcription, processing, translation, and metabolism. The m6A modification is controlled by three protein classes known as writers (methyltransferases), erasers (demethylases), and readers (m6A-binding proteins). Each class of m6A regulatory proteins has been implicated in cancer initiation and progression. As such, many of these proteins have been identified as potential targets for anti-cancer chemotherapeutics. In this work, we provide an overview of the role m6A-regulating proteins play in cancer and discuss the current state of small molecule therapeutics targeting these proteins.
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Affiliation(s)
- Noah J Harrahill
- Department of Pharmaceutical Sciences, University of Connecticut, 69 N Eagleville Rd, Unit 3092, Storrs, CT, 06269-3092, United States
| | - M Kyle Hadden
- Department of Pharmaceutical Sciences, University of Connecticut, 69 N Eagleville Rd, Unit 3092, Storrs, CT, 06269-3092, United States.
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2
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Yang J, Liang F, Zhang F, Zhao H, Gong Q, Gao N. Recent advances in the reciprocal regulation of m 6A modification with non-coding RNAs and its therapeutic application in acute myeloid leukemia. Pharmacol Ther 2024; 259:108671. [PMID: 38830387 DOI: 10.1016/j.pharmthera.2024.108671] [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: 03/08/2024] [Revised: 05/25/2024] [Accepted: 05/31/2024] [Indexed: 06/05/2024]
Abstract
N6-methyladenosine (m6A) is one of the most common modifications of RNA in eukaryotic cells and is involved in mRNA metabolism, including stability, translation, maturation, splicing, and export. m6A also participates in the modification of multiple types of non-coding RNAs, such as microRNAs, long non-coding RNAs, and circular RNAs, thereby affecting their metabolism and functions. Increasing evidence has revealed that m6A regulators, such as writers, erasers, and readers, perform m6A-dependent modification of ncRNAs, thus affecting cancer progression. Moreover, ncRNAs modulate m6A regulators to affect cancer development and progression. In this review, we summarize recent advances in understanding m6A modification and ncRNAs and provide insights into the interaction between m6A modification and ncRNAs in cancer. We also discuss the potential clinical applications of the mechanisms underlying the interplay between m6A modifications and ncRNAs in acute myeloid leukemia (AML). Therefore, clarifying the mutual regulation between m6A modifications and ncRNAs is of great significance to identify novel therapeutic targets for AML and has great clinical application prospects.
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Affiliation(s)
- Jiawang Yang
- Key Laboratory of Basic Pharmacology of Ministry of Education, Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, Guizhou, China; Chinese Phramcological Society-Guizhou Province Joint Laboratory for Pharmacology, Zunyi 563000, Guizhou, China
| | - Feng Liang
- Key Laboratory of Basic Pharmacology of Ministry of Education, Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, Guizhou, China; Chinese Phramcological Society-Guizhou Province Joint Laboratory for Pharmacology, Zunyi 563000, Guizhou, China
| | - Fenglin Zhang
- Key Laboratory of Basic Pharmacology of Ministry of Education, Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, Guizhou, China; Chinese Phramcological Society-Guizhou Province Joint Laboratory for Pharmacology, Zunyi 563000, Guizhou, China
| | - Hailong Zhao
- Department of Pathophysiology, Zunyi Medical University, Zunyi 563000, Guizhou, China.
| | - Qihai Gong
- Key Laboratory of Basic Pharmacology of Ministry of Education, Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, Guizhou, China; Chinese Phramcological Society-Guizhou Province Joint Laboratory for Pharmacology, Zunyi 563000, Guizhou, China.
| | - Ning Gao
- Key Laboratory of Basic Pharmacology of Ministry of Education, Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, Guizhou, China; Chinese Phramcological Society-Guizhou Province Joint Laboratory for Pharmacology, Zunyi 563000, Guizhou, China.
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3
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Liu Q, Zhang N, Chen J, Zhou M, Zhou D, Chen Z, Huang Z, Xie Y, Qiao G, Tu X. WTAP-induced N 6-methyladenosine of PD-L1 blocked T-cell-mediated antitumor activity under hypoxia in colorectal cancer. Cancer Sci 2024; 115:1749-1762. [PMID: 38508217 PMCID: PMC11145145 DOI: 10.1111/cas.16136] [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: 01/17/2024] [Revised: 02/16/2024] [Accepted: 02/20/2024] [Indexed: 03/22/2024] Open
Abstract
N6-Methyladenosine (m6A) is a important process regulating gene expression post-transcriptionally. Programmed death ligand 1 (PD-L1) is a major immune inhibitive checkpoint that facilitates immune evasion and is expressed in tumor cells. In this research we discovered that Wilms' tumor 1-associated protein (WTAP) degradation caused by ubiquitin-mediated cleavage in cancer cells (colorectal cancer, CRC) under hypoxia was inhibited by Pumilio homolog 1 (PUM1) directly bound to WTAP. WTAP enhanced PD-L1 expression in a way that was m6A-dependent. m6A "reader," Insulin-like growth factor 2 mRNA-binding protein 2 (IGF2BP2) identified methylated PD-L1 transcripts and subsequently fixed its mRNA. Additionally, we found that T-cell proliferation and its cancer cell-killing effects were prevented by overexpression of WTAP in vitro and in vivo. Overexpression prevented T cells from proliferating and killing CRC by maintaining the expression of PD-L1. Further evidence supporting the WTAP-PD-L1 regulatory axis was found in human CRC and organoid tissues. Tumors with high WTAP levels appeared more responsive to anti-PD1 immunotherapy, when analyzing samples from patients undergoing treatment. Overall, our findings demonstrated a novel PD-L1 regulatory mechanism by WTAP-induced mRNA epigenetic regulation and the possible application of targeting WTAP as immunotherapy for tumor hypoxia.
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Affiliation(s)
- Qi‐zhi Liu
- Department of Gastrointestinal Surgery, Shanghai Fourth People's Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Nan Zhang
- Department of Gastrointestinal Surgery, Shanghai Fourth People's Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Jun‐yi Chen
- Department of Gastrointestinal Surgery, Shanghai Fourth People's Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Min‐jun Zhou
- Department of Gastrointestinal Surgery, Shanghai Fourth People's Hospital, School of MedicineTongji UniversityShanghaiChina
| | - De‐hua Zhou
- Department of Gastrointestinal Surgery, Shanghai Fourth People's Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Zhuo Chen
- Department of Gastrointestinal Surgery, Shanghai Fourth People's Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Zhen‐xing Huang
- Department of Gastrointestinal Surgery, Shanghai Fourth People's Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Yu‐xiang Xie
- Department of Gastrointestinal Surgery, Shanghai Fourth People's Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Guang‐lei Qiao
- Department of Oncology, Tongren HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Xiao‐huang Tu
- Department of Gastrointestinal Surgery, Shanghai Fourth People's Hospital, School of MedicineTongji UniversityShanghaiChina
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Ding H, Liu Y, Lu X, Liu A, Xu Q, Yuan Y. Pepsinogen C Interacts with IQGAP1 to Inhibit the Metastasis of Gastric Cancer Cells by Suppressing Rho-GTPase Pathway. Cancers (Basel) 2024; 16:1796. [PMID: 38791874 PMCID: PMC11120368 DOI: 10.3390/cancers16101796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/23/2024] [Accepted: 04/25/2024] [Indexed: 05/26/2024] Open
Abstract
AIM This study systematically explored the biological effects and mechanisms of PGC on gastric cancer (GC) cells in vitro and in vivo. METHOD The critical biological roles of PGC in GC were assessed via EdU staining, Hoechst staining, flow cytometry, mouse models, CCK-8, wound healing, transwell, and sphere-forming assays. The interaction study with IQ-domain GTPase-activating protein 1 (IQGAP1) was used by Liquid chromatography-mass spectrometry co-immunoprecipitation, immunofluorescence staining, CHX-chase assay, MG132 assay, and qRT-PCR. RESULTS PGC inhibited the proliferation, viability, epithelial-mesenchymal transition, migration, invasion, and stemness of GC cells and promoted GC cell differentiation. PGC suppressed subcutaneous tumor growth and peritoneal dissemination in vivo. The interaction study found PGC inhibits GC cell migration and invasion by downregulating IQGAP1 protein and IQGAP1-mediated Rho-GTPase signaling suppression. In addition, PGC disrupts the stability of the IQGAP1 protein, promoting its degradation and significantly shortening its half-life. Moreover, the expression levels of PGC and IQGAP1 in GC tissues were significantly negatively correlated. CONCLUSION PGC may act as a tumor suppressor in the development and metastasis of GC. PGC can downregulate its interacting protein IQGAP1 and inhibit the Rho-GTPase pathway, thereby participating in the inhibition of GC cell migration and invasion.
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Affiliation(s)
- Hanxi Ding
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Hospital of China Medical University, Shenyang 110001, China; (H.D.); (Y.L.); (X.L.); (A.L.)
- Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, The First Hospital of China Medical University, Shenyang 110001, China
- Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China
| | - Yingnan Liu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Hospital of China Medical University, Shenyang 110001, China; (H.D.); (Y.L.); (X.L.); (A.L.)
- Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, The First Hospital of China Medical University, Shenyang 110001, China
- Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China
| | - Xiaodong Lu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Hospital of China Medical University, Shenyang 110001, China; (H.D.); (Y.L.); (X.L.); (A.L.)
- Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, The First Hospital of China Medical University, Shenyang 110001, China
- Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China
| | - Aoran Liu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Hospital of China Medical University, Shenyang 110001, China; (H.D.); (Y.L.); (X.L.); (A.L.)
- Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, The First Hospital of China Medical University, Shenyang 110001, China
- Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China
| | - Qian Xu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Hospital of China Medical University, Shenyang 110001, China; (H.D.); (Y.L.); (X.L.); (A.L.)
- Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, The First Hospital of China Medical University, Shenyang 110001, China
- Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Hospital of China Medical University, Shenyang 110001, China; (H.D.); (Y.L.); (X.L.); (A.L.)
- Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, The First Hospital of China Medical University, Shenyang 110001, China
- Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China
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5
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Hu J, Wang S, Li X. A comprehensive review of m 6A research in cervical cancer. Epigenomics 2024:1-21. [PMID: 38639713 DOI: 10.2217/epi-2024-0002] [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: 01/03/2024] [Accepted: 03/27/2024] [Indexed: 04/20/2024] Open
Abstract
Cervical cancer (CC) remains one of the most common malignancies among women worldwide, posing a serious threat to women's health. N6-methyladenosine (m6A) modification, as the most abundant type of RNA methylation modification, and has been found to play a crucial role in various cancers. Current research suggests a close association between RNA m6A modification and the occurrence and progression of CC, encompassing disruptions in m6A levels and its regulatory machinery. This review summarizes the current status of m6A modification research in CC, explores the mechanisms underlying m6A levels and regulators (methyltransferases, demethylases, reader proteins) in CC and examines the application of small-molecule inhibitors of m6A regulators in disease treatment. The findings provide new insights into the future treatment of CC.
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Affiliation(s)
- Jing Hu
- Key Laboratory of Environmental Medicine & Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Shizhi Wang
- Key Laboratory of Environmental Medicine & Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Xiuting Li
- Department of Public Health, Jiangsu Health Vocational College, Nanjing, 210000, China
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Jiang M, Han J, Ma Q, Chen X, Xu R, Wang Q, Zheng J, Wang W, Song J, Huang Y, Chen Y. Nicotine-derived NNK promotes CRC progression through activating TMUB1/AKT pathway in METTL14/YTHDF2-mediated m6A manner. JOURNAL OF HAZARDOUS MATERIALS 2024; 467:133692. [PMID: 38341886 DOI: 10.1016/j.jhazmat.2024.133692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/13/2024]
Abstract
Cigarette smoking substantially promotes tumorigenesis and progression of colorectal cancer; however, the underlying molecular mechanism remains unclear. Among 662 colorectal cancer patients, our investigation revealed a significant correlation between cigarette smoking and factors, such as large tumor size, poor differentiation, and high degree of invasion. Among the nicotine-derived nitrosamines, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) emerged as the most critical carcinogen, which significantly promoted the malignant progression of colorectal cancer both in vivo and in vitro. The results of methylated RNA immunoprecipitation and transcriptome sequencing indicated that NNK upregulated transmembrane and ubiquitin-like domain-containing protein 1 (TMUB1) via N6-adenosine methylation, which was regulated by methyltransferase-like 14 (METTL14) and YTH N6-methyladenosine RNA binding protein 2 (YTHDF2). Elevated TMUB1 levels were associated with a higher risk of cancer invasion and metastasis, leading to a high mortality risk in patients with colorectal cancer. Additionally, TMUB1 promoted lysine63-linked ubiquitination of AKT by interacting with AMFR, which led to the induction of malignant proliferation and metastasis in colorectal cancer cells exposed to NNK. In summary, this study provides a new insight, indicating that targeting TMUB1 expression via METTL14/YTHDF2 mediated N6-adenosine methylation may be a potential therapeutic and prognostic target for patients with colorectal cancer who smoke.
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Affiliation(s)
- Min Jiang
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China; Center for Medical Statistics and Data Analysis, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China; Key Laboratory of Human Genetics and Environmental Medicine, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Jingyi Han
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Qun Ma
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Xue Chen
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Renjie Xu
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Qing Wang
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Jia Zheng
- Department of Clinical Epidemiology, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Weimin Wang
- Department of Oncology, Yixing Hospital Affiliated to Medical College of Yangzhou University, Yixing, Jiangsu, PR China
| | - Jun Song
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu, China
| | - Yefei Huang
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Yansu Chen
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China; Center for Medical Statistics and Data Analysis, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China; Key Laboratory of Human Genetics and Environmental Medicine, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
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7
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Rong M, Zhang M, Dong F, Wu K, Cai B, Niu J, Yang L, Li Z, Lu HY. LncRNA RASAL2-AS1 promotes METTL14-mediated m6A methylation in the proliferation and progression of head and neck squamous cell carcinoma. Cancer Cell Int 2024; 24:113. [PMID: 38528591 DOI: 10.1186/s12935-024-03302-8] [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: 11/15/2023] [Accepted: 03/11/2024] [Indexed: 03/27/2024] Open
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) are key regulators of the 6-methyladenosine (m6A) epigenetic modification, playing a role in the initiation and progression of tumors. However, the regulatory mechanisms in head and neck squamous cell carcinoma (HNSCC) remain elusive. In this study, we investigated the molecular regulatory mechanisms of the lncRNA RASAL2-AS1 in the occurrence and development of HNSCC tumors. METHODS A bioinformatics analysis was conducted to analyze the expression level of RASAL2-AS1 in HNSCC and normal tissues. RASAL2-AS1 mRNA and protein levels were detected using RT-PCR and Western blotting. Wound healing, transwell assays, flow cytometry, M6A dot blot, and RNA immunoprecipitation experiments were conducted to explore the regulatory role of the RASAL2-AS1 and downstream targets METTL14/LIS1 signaling pathway in HNSCC. Immunohistochemical examination was conducted to evaluate the expression of METTL14 and LIS1 in HNSCC and normal tissues. A tumor xenograft model of BALB/c nude mice was established to assess the impact of RASAL2-AS1 on cell proliferation and growth. RESULTS RASAL2-AS1 high expression in HNSCC and cells deteriorated with survival rates of HNSCC. RASAL2-AS1 overexpression in HNSCC accelerated cell migration, colony formation, cell proliferation, cell cycle in S stage, while RASAL2-AS1 knockdown in HNSC cells inhibited cell cycle in G1 stage. After silencing METTL14, the above effects induced by overexpression of the RASAL2-AS1 were reversed. RASAL2-AS1 overexpression prompted LIS1 expression, whereas RASAL2-AS1 silencing reduced LIS1 levels in HNSCC cells, which was confirmed by immunohistological staining. Results demonstrated elevated expression of METTL14 or LIS1 in tongue cancer tissues. Overexpression of RASAL2-AS1 promoted tumor weight and tumor volume, which was counteracted by pcDNA3.1 RASAL2-AS1 plus silencing METTL14 and METTL14 and LIS1 were significantly decreased. CONCLUSION Our study highlights the functional importance of the LncRNA RASAL2-AS1 in HNSCC and might assist in the development of a prognostic stratification and therapeutic approach. Which regulates HNSCC with the dependence of m6a manner.
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Affiliation(s)
- Meiting Rong
- The Second Affiliated Hospital of Dalian Medical University, #467 Zhongshan Road, Dalian, 116023, China
- Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Ming Zhang
- The Second Affiliated Hospital of Dalian Medical University, #467 Zhongshan Road, Dalian, 116023, China
| | - Feihong Dong
- The Second Affiliated Hospital of Dalian Medical University, #467 Zhongshan Road, Dalian, 116023, China
| | - Ke Wu
- The Second Affiliated Hospital of Dalian Medical University, #467 Zhongshan Road, Dalian, 116023, China
| | - Bingkun Cai
- The Second Affiliated Hospital of Dalian Medical University, #467 Zhongshan Road, Dalian, 116023, China
| | - Jinrui Niu
- The Second Affiliated Hospital of Dalian Medical University, #467 Zhongshan Road, Dalian, 116023, China
| | - Le Yang
- The Second Affiliated Hospital of Dalian Medical University, #467 Zhongshan Road, Dalian, 116023, China
| | - Zhongyan Li
- The Second Affiliated Hospital of Dalian Medical University, #467 Zhongshan Road, Dalian, 116023, China.
| | - Hui-Yi Lu
- The Second Affiliated Hospital of Dalian Medical University, #467 Zhongshan Road, Dalian, 116023, China.
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Xu Y, Liu W, Ren L. Role of m6A RNA Methylation in Ischemic Stroke. Mol Neurobiol 2024:10.1007/s12035-024-04029-3. [PMID: 38363537 DOI: 10.1007/s12035-024-04029-3] [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: 11/04/2023] [Accepted: 02/09/2024] [Indexed: 02/17/2024]
Abstract
Ischemic stroke is a prominent contributor to global morbidity and mortality rates. The intricate and diverse mechanisms underlying ischemia-reperfusion injury remain poorly comprehended. RNA methylation, an emerging epigenetic modification, plays a crucial role in regulating numerous biological processes, including immunity, DNA damage response, tumorigenesis, metastasis, stem cell renewal, adipocyte differentiation, circadian rhythms, cellular development and differentiation, and cell division. Among the various RNA modifications, N6-methyladenosine (m6A) modification stands as the most prevalent in mammalian mRNA. Recent studies have demonstrated the crucial involvement of m6A modification in the pathophysiological progression of ischemic stroke. This review aims to elucidate the advancements in ischemic stroke-specific investigations pertaining to m6A modification, consolidate the underlying mechanisms implicated in the participation of m6A modification during the onset of ischemic stroke, and deliberate on the potential of m6A modification as a viable therapeutic target for ischemic stroke.
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Affiliation(s)
- Yayun Xu
- Department of Neurology, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, 518035, China
| | - Wenqiang Liu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, 230000, China
- The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, 230000, China
| | - Lijie Ren
- Department of Neurology, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, 518035, China.
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9
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Chen F, Su M, Han D, Wang Y, Song M. METTL14 depletion ameliorates ferroptosis in severe acute pancreatitis by increasing the N6-methyladenosine modification of ACSL4 and STA1. Int Immunopharmacol 2024; 128:111495. [PMID: 38237228 DOI: 10.1016/j.intimp.2024.111495] [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: 09/22/2023] [Revised: 12/27/2023] [Accepted: 01/03/2024] [Indexed: 02/08/2024]
Abstract
Methyltransferase-like 14 (METTL14) is implicated in the regulation of various inflammatory disorders. However, its function and molecular mechanism in severe acute pancreatitis (SAP) remains unrevealed. Here we reported an increase in METTL14 in the pancreas of SAP mice and cerulein-LPS-treated AR42J cells. METTL14 depletion reversed inflammatory response and ferroptosis by reducing the expression of SAT1 (spermidine/spermine N1-acetyltransferase 1) and ACSL4 (acyl-CoA synthetase long chain family member 4) in an m6A-dependent manner. IGF2BP2 (insulin like growth factor 2 mRNA binding protein 2) could recognize m6A-modified SAT1 and ACSL4 mRNA and enhance their stability. Moreover, METTL14 depletion ameliorated pancreatic injury, inflammation, and ferroptosis induced by SAP. METTL14 overexpression aggravated SAP by promoting ferroptosis in vivo. Therefore, these results demonstrated that METTL14-induced ferroptosis promoted the progression of SAP, and targeting METTL14 or ferroptosis could be a potential strategy for the prevention and treatment of SAP.
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Affiliation(s)
- Feng Chen
- Department of Emergency Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, Sichuan, China
| | - Minghua Su
- Department of Emergency Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, Sichuan, China
| | - Dong Han
- Department of Emergency Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, Sichuan, China
| | - Yifan Wang
- Department of Emergency Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, Sichuan, China.
| | - Menglong Song
- Emergency Intensive Care Unit, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, Sichuan, China.
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10
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Wang B, Mao Z, Ye J, Jiao X, Zhang T, Wang Q, Han S, Zhang Y, Wang C, Dong T, Cui B. Glycolysis Induced by METTL14 Is Essential for Macrophage Phagocytosis and Phenotype in Cervical Cancer. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:723-736. [PMID: 38197667 PMCID: PMC10828180 DOI: 10.4049/jimmunol.2300339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 10/03/2023] [Indexed: 01/11/2024]
Abstract
N 6-methyladenosine (m6A) is the most abundant mRNA modification in mammals and it plays a vital role in various biological processes. However, the roles of m6A on cervical cancer tumorigenesis, especially macrophages infiltrated in the tumor microenvironment of cervical cancer, are still unclear. We analyzed the abnormal m6A methylation in cervical cancer, using CaSki and THP-1 cell lines, that might influence macrophage polarization and/or function in the tumor microenvironment. In addition, C57BL/6J and BALB/c nude mice were used for validation in vivo. In this study, m6A methylated RNA immunoprecipitation sequencing analysis revealed the m6A profiles in cervical cancer. Then, we discovered that the high expression of METTL14 (methyltransferase 14, N6-adenosine-methyltransferase subunit) in cervical cancer tissues can promote the proportion of programmed cell death protein 1 (PD-1)-positive tumor-associated macrophages, which have an obstacle to devour tumor cells. Functionally, changes of METTL14 in cervical cancer inhibit the recognition and phagocytosis of macrophages to tumor cells. Mechanistically, the abnormality of METTL14 could target the glycolysis of tumors in vivo and vitro. Moreover, lactate acid produced by tumor glycolysis has an important role in the PD-1 expression of tumor-associated macrophages as a proinflammatory and immunosuppressive mediator. In this study, we revealed the effect of glycolysis regulated by METTL14 on the expression of PD-1 and phagocytosis of macrophages, which showed that METTL14 was a potential therapeutic target for treating advanced human cancers.
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Affiliation(s)
- Bingyu Wang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
| | - Zhonghao Mao
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
| | - Jinwen Ye
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
| | - Xinlin Jiao
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
| | - Teng Zhang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
| | - Qi Wang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Shandong First Medical University, Jinan, People’s Republic of China
| | - Sai Han
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
| | - Youzhong Zhang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
| | - Chunling Wang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
| | - Taotao Dong
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
| | - Baoxia Cui
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
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11
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Ji X, Wan X, Sun H, Deng Q, Meng S, Xie B, Zhou S. METTL14 enhances the m6A modification level of lncRNA MSTRG.292666.16 to promote the progression of non-small cell lung cancer. Cancer Cell Int 2024; 24:61. [PMID: 38326804 PMCID: PMC10851476 DOI: 10.1186/s12935-024-03250-3] [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: 08/29/2023] [Accepted: 01/29/2024] [Indexed: 02/09/2024] Open
Abstract
BACKGROUND m6A modification has close connection with the occurrence, development, and prognosis of tumors. This study aimed to explore the roles of m6A modification and its related mechanisms in non-small cell lung cancer (NSCLC). METHODS NSCLC tissues and their corresponding para-cancerous tissues were collected to determine the m6A levels of total RNA/lncRNAs and the expression of m6A modification-related genes/lncRNAs. Then, A549 cells were transfected with si-METTL14 or oe-METTL14, and the cell transfection efficiency was assessed. Subsequently, the viability, apoptosis, cell colony formation, migration and invasion of the different cells were determined. Finally, the nude mouse tumorigenicity experiments were performed to observe the effects of METTL14 in vivo. RESULTS Compared to the para-NSCLC tissues, the m6A level and METTL14 expression were both significantly increased in the NSCLC tissues (P < 0.05). Based on the expression of METTL14 in the different cell lines, A549 cells were chosen for further experiments. Then, the A549 cells with METTL14 knockdown and overexpression were successfully established, as well as it was found that METTL14 knockdown could inhibit the viability, colony formation, migration, and invasion of A549 cells, while facilitate their apoptosis. In vivo experiments also showed that METTL14 knockdown could inhibit tumor formation and growth. Additionally, the m6A level of MSTRG.292666.16 was higher in the NSCLC tissues; and after METTL14 knockdown, the expression and m6A level of MSTRG.292666.16 were both significantly reduced in A549 cells, and vice versa. CONCLUSION METTL14 may promote the progression of NSCLC through up-regulating MSTRG.292666.16 and enhance its m6A modification level.
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Affiliation(s)
- Xianxiu Ji
- Department of Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, No.507, Zhengmin Road, Yangpu District, Shanghai, 200433, China
| | - Xiaoying Wan
- Department of Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, No.507, Zhengmin Road, Yangpu District, Shanghai, 200433, China
- Department of Thoracic, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200433, China
| | - Hui Sun
- Department of Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, No.507, Zhengmin Road, Yangpu District, Shanghai, 200433, China
| | - Qinfang Deng
- Department of Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, No.507, Zhengmin Road, Yangpu District, Shanghai, 200433, China
| | - Shuyan Meng
- Department of Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, No.507, Zhengmin Road, Yangpu District, Shanghai, 200433, China
| | - Boxiong Xie
- Department of Thoracic, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200433, China.
| | - Songwen Zhou
- Department of Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, No.507, Zhengmin Road, Yangpu District, Shanghai, 200433, China.
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12
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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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13
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Chen Y, Xiang Y, Miao X, Kuai L, Ding X, Ma T, Li B, Fan B. METTL14 promotes IL-6-induced viability, glycolysis and inflammation in HaCaT cells via the m6A modification of TRIM27. J Cell Mol Med 2024; 28:e18085. [PMID: 38146129 PMCID: PMC10844716 DOI: 10.1111/jcmm.18085] [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: 06/29/2023] [Revised: 11/29/2023] [Accepted: 12/10/2023] [Indexed: 12/27/2023] Open
Abstract
Interleukin-6 (IL-6) is a cytokine generated by healthy constituents of the skin, but is also up-regulated by a wide range of skin lesions and inflammatory conditions to trigger cytopathy of skin cells. TRIM27 was identified to contribute to the functional effects of IL-6 on skin cells. However, the underlying mechanism was not clear. Lentivirus infection was used for gene overexpression or silencing. RT-PCR and Western blot were used to respectively assess mRNA and protein levels. Cell viability was assessed by CCK-8 assay. Extracellular flux analysis was used to assess the levels of oxygen consumption rate and extracellular acidification rate. Mouse back skin was treated with imiquimod to produce psoriasis-like inflammation in vivo. Histological assessment and immunohistochemistry staining were respectively applied to analyse lesioned mouse and human skin samples. IL-6-induced increased viability, glycolysis and inflammation in keratinocytes was inhibited both by a chemical methylation inhibitor and by METTL14 knockdown. Further investigation found that METTL14 induces m6A methylation of TRIM27, which is recognized by a m6A reader, IGF2BP2. Elevation of TRIM27 level and activation of IL-6/STAT3 signalling pathway were found in an in vivo psoriasis-like inflammation model, whereas inhibition m6A methylation strongly alleviated the inflammation. Finally, METTL14, TRIM27, STAT3, p-STAT3 and IL-6 expressions were all found to be increased in clinical skin samples of psoriatic patients. Our results unravelled METTL14/TRIM27/IGF2BP2 signalling axis in keratinocyte cytopathy, which plays a critical role in facilitating the activation of IL-6/STAT3 signalling pathway. Our findings should provide inspirations for the design of new therapeutics for skin inflammatory diseases including psoriasis.
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Affiliation(s)
- Yiran Chen
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Yanwei Xiang
- Engineering Research Center of Traditional Chinese Medicine Intelligent RehabilitationMinistry of EducationShanghaiChina
- School of Rehabilitation ScienceShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Xiao Miao
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
- Innovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Le Kuai
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Xiaojie Ding
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Tian Ma
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Bin Li
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
- Shanghai Skin Disease Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Bin Fan
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
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14
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Zhou W, Li S, Wang H, Zhou J, Li S, Chen G, Guan W, Fu X, Nervi C, Yu L, Li Y. A novel AML1-ETO/FTO positive feedback loop promotes leukemogenesis and Ara-C resistance via stabilizing IGFBP2 in t(8;21) acute myeloid leukemia. Exp Hematol Oncol 2024; 13:9. [PMID: 38268050 PMCID: PMC10807068 DOI: 10.1186/s40164-024-00480-z] [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: 09/06/2023] [Accepted: 01/18/2024] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND t(8;21)(q22;q22) is one of the most frequent chromosomal abnormalities in acute myeloid leukemia (AML), leading to the generation of the fusion protein AML1-ETO. Despite t(8;21) AML being considered as a subtype with a favorable prognosis, approximately 30-50% of patients experience drug resistance and subsequent relapse. N6-methyladenosine (m6A) is demonstrated to be involved in the development of AML. However, the regulatory mechanisms between AML1-ETO and m6A-related enzymes and the roles of dysregulated m6A modifications in the t(8;21)-leukemogenesis and chemoresistance remain elusive. METHODS Chromatin immunoprecipitation, dual-luciferase reporter assay, m6A-qPCR, RNA immunoprecipitation, and RNA stability assay were used to investigate a regulatory loop between AML1-ETO and FTO, an m6A demethylase. Gain- and loss-of-function experiments both in vitro and in vivo were further performed. Transcriptome-wide RNA sequencing and m6A sequencing were conducted to identify the potential targets of FTO. RESULTS Here we show that FTO is highly expressed in t(8;21) AML, especially in patients with primary refractory disease. The expression of FTO is positively correlated with AML1-ETO, which is attributed to a positive regulatory loop between the AML1-ETO and FTO. Mechanistically, AML1-ETO upregulates FTO expression through inhibiting the transcriptional repression of FTO mediated by PU.1. Meanwhile, FTO promotes the expression of AML1-ETO by inhibiting YTHDF2-mediated AML1-ETO mRNA decay. Inactivation of FTO significantly suppresses cell proliferation, promotes cell differentiation and renders resistant t(8;21) AML cells sensitive to Ara-C. FTO exerts functions by regulating its mRNA targets, especially IGFBP2, in an m6A-dependent manner. Regain of Ara-C tolerance is observed when IGFBP2 is overexpressed in FTO-knockdown t(8;21) AML cells. CONCLUSION Our work reveals a therapeutic potential of targeting AML1-ETO/FTO/IGFBP2 minicircuitry in the treatment for t(8;21) patients with resistance to Ara-C.
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Affiliation(s)
- Wei Zhou
- Central Laboratory, Shenzhen University General Hospital, Shenzhen University, Shenzhen, 518055, Guangdong, China
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen, 518060, Guangdong, China
| | - Siying Li
- School of Medicine, South China University of Technology, Guangzhou, 511400, Guangdong, China
| | - Hong Wang
- Central Laboratory, Shenzhen University General Hospital, Shenzhen University, Shenzhen, 518055, Guangdong, China
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen, 518060, Guangdong, China
| | - Jingfeng Zhou
- Department of Hematology and Oncology, International Cancer Center, Shenzhen Key Laboratory of Precision Medicine for Hematological Malignancies, Shenzhen University General Hospital, Shenzhen University, Shenzhen, 518055, Guangdong, China
| | - Shuyi Li
- Department of Hematology and Oncology, International Cancer Center, Shenzhen Key Laboratory of Precision Medicine for Hematological Malignancies, Shenzhen University General Hospital, Shenzhen University, Shenzhen, 518055, Guangdong, China
| | - Guofeng Chen
- Department of Endoscopy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Wei Guan
- Senior Department of Hematology, The Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
| | - Xianli Fu
- Department of Pathology, Shenzhen University General Hospital, Shenzhen, 518055, Guangdong, China
| | - Clara Nervi
- Department of Medical and Surgical Sciences and Biotechnologies, University of Roma La Sapienza, 04100, Latina, Italy
| | - Li Yu
- Department of Hematology and Oncology, International Cancer Center, Shenzhen Key Laboratory of Precision Medicine for Hematological Malignancies, Shenzhen University General Hospital, Shenzhen University, Shenzhen, 518055, Guangdong, China
| | - Yonghui Li
- Central Laboratory, Shenzhen University General Hospital, Shenzhen University, Shenzhen, 518055, Guangdong, China.
- Department of Hematology and Oncology, International Cancer Center, Shenzhen Key Laboratory of Precision Medicine for Hematological Malignancies, Shenzhen University General Hospital, Shenzhen University, Shenzhen, 518055, Guangdong, China.
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15
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Marayati BF, Thompson MG, Holley CL, Horner SM, Meyer KD. Programmable protein expression using a genetically encoded m 6A sensor. Nat Biotechnol 2024:10.1038/s41587-023-01978-3. [PMID: 38168988 DOI: 10.1038/s41587-023-01978-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 09/01/2023] [Indexed: 01/05/2024]
Abstract
The N6-methyladenosine (m6A) modification is found in thousands of cellular mRNAs and is a critical regulator of gene expression and cellular physiology. m6A dysregulation contributes to several human diseases, and the m6A methyltransferase machinery has emerged as a promising therapeutic target. However, current methods for studying m6A require RNA isolation and do not provide a real-time readout of mRNA methylation in living cells. Here we present a genetically encoded m6A sensor (GEMS) technology, which couples a fluorescent signal with cellular mRNA methylation. GEMS detects changes in m6A caused by pharmacological inhibition of the m6A methyltransferase, giving it potential utility for drug discovery efforts. Additionally, GEMS can be programmed to achieve m6A-dependent delivery of custom protein payloads in cells. Thus, GEMS is a versatile platform for m6A sensing that provides both a simple readout for m6A methylation and a system for m6A-coupled protein expression.
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Affiliation(s)
- Bahjat F Marayati
- Department of Biochemistry, Duke University School of Medicine, Durham, NC, USA
| | - Matthew G Thompson
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, NC, USA
| | - Christopher L Holley
- Department of Medicine, Duke University School of Medicine, Durham, NC, USA
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA
| | - Stacy M Horner
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, NC, USA
- Department of Medicine, Duke University School of Medicine, Durham, NC, USA
| | - Kate D Meyer
- Department of Biochemistry, Duke University School of Medicine, Durham, NC, USA.
- Department of Neurobiology, Duke University School of Medicine, Durham, NC, USA.
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16
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Wang Y, Chen C, Yan W, Fu Y. Epigenetic modification of m 6A methylation: Regulatory factors, functions and mechanism in inflammatory bowel disease. Int J Biochem Cell Biol 2024; 166:106502. [PMID: 38030117 DOI: 10.1016/j.biocel.2023.106502] [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: 08/31/2023] [Revised: 11/19/2023] [Accepted: 11/21/2023] [Indexed: 12/01/2023]
Abstract
Although the exact cause of inflammatory bowel disease (IBD) is still unknown, there is a lot of evidence to support the notion that it results from a combination of environmental factors, immune system issues, gut microbial changes, and genetic susceptibility. In recent years, the role of epigenetics in the pathogenesis of IBD has drawn increasing attention. The regulation of IBD-related immunity, the preservation of the intestinal epithelial barrier, and autophagy are all significantly influenced by epigenetic factors. The most extensive epigenetic methylation modification of mammalian mRNA among them is N6-methyladenosine (m6A). It summarizes the general structure and function of the m6A regulating factors, as well as their complex effects on IBD by regulating the intestinal mucous barrier, intestine mucosal immunity, epidermal cell death, and intestinal microorganisms.This paper provides key insights for the future identification of potential new targets for the diagnosis and treatment of IBD.
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Affiliation(s)
- Yanping Wang
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chaoyue Chen
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Yan
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Yu Fu
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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17
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Xu Y, Liu W, Ren L. Emerging roles and mechanism of m6A methylation in rheumatoid arthritis. Biomed Pharmacother 2024; 170:116066. [PMID: 38157641 DOI: 10.1016/j.biopha.2023.116066] [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: 11/20/2023] [Revised: 12/16/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024] Open
Abstract
Rheumatoid arthritis (RA) is a multifaceted autoimmune disease characterized by systemic inflammation, affecting both articular and extra-articular structures. This condition results in inflammation of joints and synovial membranes, accompanied by the development of systemic comorbidities. Despite extensive research, the precise pathogenic mechanisms responsible for RA have yet to be completely understood. RNA methylation, a burgeoning epigenetic alteration, assumes a pivotal function in the regulation of a myriad of biological phenomena, encompassing immunity, DNA damage response, tumorigenesis, metastasis, stem cell renewal, adipocyte differentiation, circadian rhythms, cellular development and differentiation, and cell division. The N6-methyladenosine (m6A) modification is the most prevalent among the various RNA modifications found in mammalian mRNA. Recent studies have provided evidence of the significant role played by m6A modification in the pathophysiological progression of RA. This review aims to provide a comprehensive analysis of the progress made in research focused on m6A modification in the context of RA, consolidate the underlying mechanisms involved in m6A modification during the initiation of RA and discuss the potential of targeting m6A modification as a viable therapeutic approach for RA.
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Affiliation(s)
- Yayun Xu
- Department of Neurology, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China
| | - Wenqiang Liu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei 230000, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei 230000, China
| | - Lijie Ren
- Department of Neurology, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China.
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18
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Chen J, Zeng B. METTL14-Mediated m6a Modification of CDKN2A Promotes the Development of Retinoblastoma by Inhibiting the p53 Pathway. Crit Rev Immunol 2024; 44:89-98. [PMID: 38421707 DOI: 10.1615/critrevimmunol.2023052059] [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: 03/02/2024]
Abstract
The methyltransferase 14, N6-adenosine-methyltransferase subunit (METTL14) and Cyclin-dependent kinase inhibitor 2A (CDKN2A) have been identified as involved in the regulation of various cancer progression, while their mechanism and regulatory effect in retinoblastoma (RB) is still unclear. Cell colony formation, CCK-8 as well as Western blotting were used to evaluate the proliferation, apoptosis as well as p53 protein level of RB cell line. The METTL14 and CDKN2A levels were detected by qRT-PCR or Western blotting when METTL14 was up-regulated or CDKN2A was down-regulated. MeRIP and Pearson analysis were performed to confirm the regulatory relationship between METTL14 among CDKN2A. We found that the levels of CDKN2A and METTL14 were abundant in RB samples, as well as RB cells. METTL14 enhances N6-methyladenosine (m6A) modification of CDKN2A to upregulate its mRNA and protein levels. The proliferation of RB cells can be inhibited by silencing CDKN2A, which promotes apoptosis and p53 protein level. Furthermore, high-expression of METTL14 eliminated the anti-tumor effect of CDKN2A silencing in RB progression in vitro. CDKN2A is mediated by METTL14-m6A modified and restrains p53 pathway activation to accelerate the malignancy of RB. This points to the METTL14-m6A-CDKN2A-p53 pathway axis as a possible prospective target for the future RB treatment.
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Affiliation(s)
- Jing Chen
- Department of Ophthalmology, Central Theater General Hospital, Wuhan 430070, Hubei, China
| | - Bo Zeng
- Central Theater General Hospital
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19
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Lin L, Zhao Y, Zheng Q, Zhang J, Li H, Wu W. Epigenetic targeting of autophagy for cancer: DNA and RNA methylation. Front Oncol 2023; 13:1290330. [PMID: 38148841 PMCID: PMC10749975 DOI: 10.3389/fonc.2023.1290330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 11/28/2023] [Indexed: 12/28/2023] Open
Abstract
Autophagy, a crucial cellular mechanism responsible for degradation and recycling of intracellular components, is modulated by an intricate network of molecular signals. Its paradoxical involvement in oncogenesis, acting as both a tumor suppressor and promoter, has been underscored in recent studies. Central to this regulatory network are the epigenetic modifications of DNA and RNA methylation, notably the presence of N6-methyldeoxyadenosine (6mA) in genomic DNA and N6-methyladenosine (m6A) in eukaryotic mRNA. The 6mA modification in genomic DNA adds an extra dimension of epigenetic regulation, potentially impacting the transcriptional dynamics of genes linked to autophagy and, especially, cancer. Conversely, m6A modification, governed by methyltransferases and demethylases, influences mRNA stability, processing, and translation, affecting genes central to autophagic pathways. As we delve deeper into the complexities of autophagy regulation, the importance of these methylation modifications grows more evident. The interplay of 6mA, m6A, and autophagy points to a layered regulatory mechanism, illuminating cellular reactions to a range of conditions. This review delves into the nexus between DNA 6mA and RNA m6A methylation and their influence on autophagy in cancer contexts. By closely examining these epigenetic markers, we underscore their promise as therapeutic avenues, suggesting novel approaches for cancer intervention through autophagy modulation.
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Affiliation(s)
- Luobin Lin
- Guangdong Province Key Laboratory of Biotechnology Drug Candidates, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Yuntao Zhao
- Guangdong Province Key Laboratory of Biotechnology Drug Candidates, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Qinzhou Zheng
- Guangdong Province Key Laboratory of Biotechnology Drug Candidates, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Jiayang Zhang
- Guangdong Province Key Laboratory of Biotechnology Drug Candidates, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Huaqin Li
- School of Health Sciences, Guangzhou Xinhua University, Guangzhou, Guangdong, China
| | - Wenmei Wu
- Guangdong Province Key Laboratory of Biotechnology Drug Candidates, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
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20
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Zhang L, Xia J. N6-Methyladenosine Methylation of mRNA in Cell Apoptosis. Mol Neurobiol 2023:10.1007/s12035-023-03813-x. [PMID: 38040996 DOI: 10.1007/s12035-023-03813-x] [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: 11/24/2022] [Accepted: 11/16/2023] [Indexed: 12/03/2023]
Abstract
Apoptosis, a highly controlled homeostatic mechanism that eliminates single cells without destroying tissue function, occurs during growing development and senescence. N6-methyladenosine (m6A), as the most common internal modification of eukaryotic mRNA, fine-tunes gene expression by regulating many aspects of mRNA metabolism, such as splicing, nucleation, stability, translation, and degradation. Remarkably, recent reports have indicated that aberrant methylation of m6A-related RNA may directly or indirectly influence the expression of apoptosis-related genes, thus regulating the process of cell apoptosis. In this review, we summarized the relationship between m6A modification and cell apoptosis, especially its role in the nervous system, and analyzed the limitations of the current research. Pro-apoptotic protein, anti-apoptotic protein, pro-survival protein, and caspases participate in different processes of apoptosis. METTL3 and METTL14 directly regulate the expression of Bcl-2, Bcl-xl, Bak, Bax, caspase7, caspase3, MYB, and MYC. WTAP, FTO, ALKBH5, YTHDF2, and eIF3 can also control cell apoptosis by regulating the expression of certain genes.
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Affiliation(s)
- Lin Zhang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Jian Xia
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China.
- Clinical Research Center for Cerebrovascular Disease of Hunan Province, Central South University, Changsha, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.
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21
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Liu J, Gu X, Guan Z, Huang D, Xing H, Zheng L. Role of m6A modification in regulating the PI3K/AKT signaling pathway in cancer. J Transl Med 2023; 21:774. [PMID: 37915034 PMCID: PMC10619263 DOI: 10.1186/s12967-023-04651-0] [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: 08/23/2023] [Accepted: 10/24/2023] [Indexed: 11/03/2023] Open
Abstract
The phosphoinositide 3-kinase (PI3K)/AKT signaling pathway plays a crucial role in the pathogenesis of cancer. The dysregulation of this pathway has been linked to the development and initiation of various types of cancer. Recently, epigenetic modifications, particularly N6-methyladenosine (m6A), have been recognized as essential contributors to mRNA-related biological processes and translation. The abnormal expression of m6A modification enzymes has been associated with oncogenesis, tumor progression, and drug resistance. Here, we review the role of m6A modification in regulating the PI3K/AKT pathway in cancer and its implications in the development of novel strategies for cancer treatment.
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Affiliation(s)
- Jie Liu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Erqi District, Zhengzhou, 450052, Henan, China
| | - Xinyu Gu
- Department of Oncology, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China
| | - Zhenjie Guan
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Di Huang
- Department of Child Health Care, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, China
| | - Huiwu Xing
- Department of Pediatric Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Erqi District, Zhengzhou, 450052, Henan, China.
| | - Lian Zheng
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Erqi District, Zhengzhou, 450052, Henan, China.
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22
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Wang D, Zhang Y, Li Q, Zhang A, Xu J, Li Y, Li W, Tang L, Yang F, Meng J. N6-methyladenosine (m6A) in cancer therapeutic resistance: Potential mechanisms and clinical implications. Biomed Pharmacother 2023; 167:115477. [PMID: 37696088 DOI: 10.1016/j.biopha.2023.115477] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/13/2023] Open
Abstract
Cancer therapy resistance (CTR) is the development of cancer resistance to multiple therapeutic strategies, which severely affects clinical response and leads to cancer progression, recurrence, and metastasis. N6-methyladenosine (m6A) has been identified as the most common, abundant, and conserved internal transcriptional alterations of RNA modifications, regulating RNA splicing, translation, stabilization, degradation, and gene expression, and is involved in the development and progression of a variety of diseases, including cancer. Recent studies have shown that m6A modifications play a critical role in both cancer development and progression, especially in reversing CTR. Although m6A modifications have great potential in CTR, the specific molecular mechanisms are not fully elucidated. In this review, we summarize the potential molecular mechanisms of m6A modification in CTR. In addition, we update recent advances in natural products from Traditional Chinese Medicines (TCM) and small-molecule lead compounds targeting m6A modifications, and discuss the great potential and clinical implications of these inhibitors targeting m6A regulators and combinations with other therapies to improve clinical efficacy and overcome CTR.
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Affiliation(s)
- Dong Wang
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yan Zhang
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Qingbo Li
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Ao Zhang
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Jingxuan Xu
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yu Li
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Wen Li
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Lin Tang
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
| | - Fan Yang
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
| | - Jingyan Meng
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
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23
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Tang B, Bi L, Xu Y, Cao L, Li X. N 6-Methyladenosine (m 6A) Reader IGF2BP1 Accelerates Gastric Cancer Development and Immune Escape by Targeting PD-L1. Mol Biotechnol 2023:10.1007/s12033-023-00896-8. [PMID: 37817028 DOI: 10.1007/s12033-023-00896-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/11/2023] [Indexed: 10/12/2023]
Abstract
N6-methyladenosine (m6A) functions as an important regulator in various human cancers, including gastric cancer. The immunotherapy targeting PD-1/PD-L1 has brought hope for advanced gastric cancer therapeutic. Here, present research aims to investigate the roles of m6A reader IGF2BP1 on gastric cancer tumor development and immune escape. Results indicated that IGF2BP1 up-regulated in the gastric cancer tissue and correlated with poor prognosis of gastric cancer patients. IGF2BP1 overexpression augmented the proliferation of co-cultured gastric cancer cells, and mitigated the CD8+ T cells mediated anti-tumor response, including IFN-γ secretion, surface PD-L1 level, and cytotoxicity of CD8+ T cells. Meanwhile, IGF2BP1 silencing exerted the opposite effects. In silico analysis revealed that there was a remarkable m6A modified site on PD-L1 mRNA. Moreover, the IGF2BP1 overexpression enhanced the stability of PD-L1 mRNA, thereby deteriorating the immune escape of gastric cancer cells. Collectively, these results describe a novel regulatory mechanism of IGF2BP1 by regulating PD-L1 through m6A epigenetic modification, which might provide insights for gastric cancer immunotherapies.
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Affiliation(s)
- Bingxi Tang
- Department of Gastroenterology, Zibo Central Hospital, Zibo, 255036, China
| | - Lei Bi
- Department of Clinical Laboratory, Zibo Central Hospital, Zibo, 255036, China
| | - Yanbin Xu
- Department of General Surgery, Zibo Central Hospital, Zibo, 255036, China
| | - Lili Cao
- Department of Oncology, Zibo Central Hospital, Zibo, 255036, China.
| | - Xinli Li
- Department of Clinical Laboratory, Zibo Central Hospital, Zibo, 255036, China.
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24
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Breger K, Kunkler CN, O'Leary NJ, Hulewicz JP, Brown JA. Ghost authors revealed: The structure and function of human N 6 -methyladenosine RNA methyltransferases. WILEY INTERDISCIPLINARY REVIEWS. RNA 2023; 15:e1810. [PMID: 37674370 PMCID: PMC10915109 DOI: 10.1002/wrna.1810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 07/14/2023] [Accepted: 07/15/2023] [Indexed: 09/08/2023]
Abstract
Despite the discovery of modified nucleic acids nearly 75 years ago, their biological functions are still being elucidated. N6 -methyladenosine (m6 A) is the most abundant modification in eukaryotic messenger RNA (mRNA) and has also been detected in non-coding RNAs, including long non-coding RNA, ribosomal RNA, and small nuclear RNA. In general, m6 A marks can alter RNA secondary structure and initiate unique RNA-protein interactions that can alter splicing, mRNA turnover, and translation, just to name a few. Although m6 A marks in human RNAs have been known to exist since 1974, the structures and functions of methyltransferases responsible for writing m6 A marks have been established only recently. Thus far, there are four confirmed human methyltransferases that catalyze the transfer of a methyl group from S-adenosylmethionine (SAM) to the N6 position of adenosine, producing m6 A: methyltransferase-like protein (METTL) 3/METTL14 complex, METTL16, METTL5, and zinc-finger CCHC-domain-containing protein 4. Though the methyltransferases have unique RNA targets, all human m6 A RNA methyltransferases contain a Rossmann fold with a conserved SAM-binding pocket, suggesting that they utilize a similar catalytic mechanism for methyl transfer. For each of the human m6 A RNA methyltransferases, we present the biological functions and links to human disease, RNA targets, catalytic and kinetic mechanisms, and macromolecular structures. We also discuss m6 A marks in human viruses and parasites, assigning m6 A marks in the transcriptome to specific methyltransferases, small molecules targeting m6 A methyltransferases, and the enzymes responsible for hypermodified m6 A marks and their biological functions in humans. Understanding m6 A methyltransferases is a critical steppingstone toward establishing the m6 A epitranscriptome and more broadly the RNome. This article is categorized under: RNA Interactions with Proteins and Other Molecules > Protein-RNA Recognition RNA Interactions with Proteins and Other Molecules > RNA-Protein Complexes RNA Interactions with Proteins and Other Molecules > Protein-RNA Interactions: Functional Implications.
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Affiliation(s)
- Kurtis Breger
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana, USA
| | - Charlotte N Kunkler
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana, USA
| | - Nathan J O'Leary
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana, USA
| | - Jacob P Hulewicz
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana, USA
| | - Jessica A Brown
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana, USA
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25
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Luo Y, He M, Yang J, Zhang F, Chen J, Wen X, Fan J, Fan X, Chai P, Jia R. A novel MYCN-YTHDF1 cascade contributes to retinoblastoma tumor growth by eliciting m 6A -dependent activation of multiple oncogenes. SCIENCE CHINA. LIFE SCIENCES 2023; 66:2138-2151. [PMID: 36949231 DOI: 10.1007/s11427-022-2288-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 12/20/2022] [Indexed: 03/24/2023]
Abstract
Retinoblastoma, the most prevalent primary intraocular tumor in children, leads to vision impairment, disability and even death. In addition to RB1 inactivation, MYCN activation has been documented as another common oncogenic alteration in retinoblastoma and represents one of the high-risk molecular subtypes of retinoblastoma. However, how MYCN contributes to the progression of retinoblastoma is still incompletely understood. Here, we report that MYCN upregulates YTHDF1, which encodes one of the reader proteins for N6-methyladenosine (m6A) RNA modification, in retinoblastoma. We further found that this MYCN-upregulated m6A reader functions to promote retinoblastoma cell proliferation and tumor growth in an m6A binding-dependent manner. Mechanistically, YTHDF1 promotes the expression of multiple oncogenes by binding to their mRNAs and enhancing mRNA stability and translation in retinoblastoma cells. Taken together, our findings reveal a novel MYCN-YTHDF1 regulatory cascade in controlling retinoblastoma cell proliferation and tumor growth, pinpointing an unprecedented mechanism for MYCN amplification and/or activation to promote retinoblastoma progression.
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Affiliation(s)
- Yingxiu Luo
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200023, China
| | - Mengjia He
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200023, China
| | - Jie Yang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200023, China
| | - Feifei Zhang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200023, China
| | - Jie Chen
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200023, China
| | - Xuyang Wen
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200023, China
| | - Jiayan Fan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200023, China
| | - Xianqun Fan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200023, China.
| | - Peiwei Chai
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200023, China.
| | - Renbing Jia
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200023, China.
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26
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Deng M, Luo J, Cao H, Li Y, Chen L, Liu G. METTL14 represses osteoclast formation to ameliorate osteoporosis via enhancing GPX4 mRNA stability. ENVIRONMENTAL TOXICOLOGY 2023; 38:2057-2068. [PMID: 37195267 DOI: 10.1002/tox.23829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/19/2023] [Accepted: 05/01/2023] [Indexed: 05/18/2023]
Abstract
Excessive bone resorption by osteoclasts results in the development of multiple bone disorders including osteoporosis. This study aimed to explore the biological function of methyltransferase-like14 (METTL14) in osteoclast formation, as well as its related mechanisms. Expression levels of METTL14, GPX4 and osteoclast-related proteins TRAP, NFATc1, c-Fos were detected by qRT-PCR and Western blotting. The osteoporosis model was established in mice by bilateral ovariectomy (OVX). Bone histomorphology was determined by micro-CT and H&E staining. NFATc1 expression in bone tissues was determined by immunohistochemical staining. Proliferation of primary bone marrow macrophages cells (BMMs) was assessed by MTT assay. Osteoclast formation was observed by TRAP staining. The regulatory mechanism was evaluated by RNA methylation quantification assay, MeRIP-qPCR, dual luciferase reporter assay, and RIP, respectively. METTL14 was down-regulated in the serum samples of postmenopausal osteoporotic women, which was positively associated with bone mineral density (BMD). Osteoclast formation was promoted in OVX-treated METTL14+/- mice as compared with wild-type littermates. Conversely, METTL14 overexpression repressed RANKL-induced osteoclast differentiation of BMMs. Mechanistically, METTL14-mediated m6A modification post-transcriptionally stabilized glutathione peroxidase 4 (GPX4), with the assistance of Hu-Antigen R (HuR). Finally, GPX4 depletion-mediated osteoclast formation in BMMs could be counteracted by METTL14 or HuR overexpression. Collectively, METTL14 inhibits osteoclastogenesis and bone resorption via enhancing GPX4 stability through an m6A-HuR dependent mechanism. Therefore, targeting METTL14 might be a novel promising treatment strategy for osteoporosis.
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Affiliation(s)
- Mingsi Deng
- Department of Stomatology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
- Department of Orthodontics, Changsha Stomatology Hospital, Changsha, Hunan, People's Republic of China
| | - Jia Luo
- Changsha Blood Center, Changsha, Hunan, People's Republic of China
| | - Heng Cao
- The Department of Wound Joint Surgery, Affiliated Hospital of Yiyang Medical College, Yiyang, Hunan, People's Republic of China
| | - Yong Li
- Department of Emergency, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Liangjian Chen
- Department of Stomatology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Gengyan Liu
- Department of Orthopedics, The Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
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27
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Xu D, Han S, Yue X, Xu X, Huang T. METTL14 Suppresses Tumor Stemness and Metastasis of Colon Cancer Cells by Modulating m6A-Modified SCD1. Mol Biotechnol 2023:10.1007/s12033-023-00843-7. [PMID: 37592151 DOI: 10.1007/s12033-023-00843-7] [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: 02/16/2023] [Accepted: 07/27/2023] [Indexed: 08/19/2023]
Abstract
Colon cancer (CC) is a malignant disease of the digestive tract, and its rising prevalence poses a grave threat to people's health. N6-methyladenosine (m6A) modification is essential for various crucial life processes through modulating gene expression. Methyltransferase-like 14 (METTL14), the m6A methylation transferase core protein, and its aberrant expression is intimately correlated to tumor development. This study was conducted to probe the impacts and specific mechanisms of METTL14 on the biological process of CC. Bioinformatics data disclosed that METTL14 was significantly attenuated in CC. Functional assays were executed to ascertain how METTL14 affected CC tumorigenicity, and METTL14 overexpression caused a notable decline in viability, migration, invasion, and stemness phenotype of CC cells. Then, in-depth mechanistic studies displayed that stearoyl-CoA desaturase 1 (SCD1) was a downstream target gene of METTL14-mediated m6A modification. METTL14 overexpression substantially augmented the m6A modification of SCD1 mRNA and diminished the SCD1 mRNA level. In addition, we revealed that YTHDF2 was the m6A reader to recognize METTL14 m6A-modified SCD1 mRNA and abolish its stability. Finally, we also validated that METTL14 might impede the tumorigenic process of CC through SCD1 mediated Wnt/β-catenin signaling. Taken together, this study presented that METTL14 performed as a potential therapeutic target in CC with important implications for the prognosis amelioration of CC patients.
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Affiliation(s)
- Dehua Xu
- Gastrointestinal Surgery, Suzhou Xiangcheng Peoples' Hospital, No. 1060, Huayuan Road, Xiangcheng District, Suzhou, 215131, Jiangsu, China
| | - Shuguang Han
- Gastrointestinal Surgery, Suzhou Xiangcheng Peoples' Hospital, No. 1060, Huayuan Road, Xiangcheng District, Suzhou, 215131, Jiangsu, China
| | - Xiaoguang Yue
- Gastrointestinal Surgery, Suzhou Xiangcheng Peoples' Hospital, No. 1060, Huayuan Road, Xiangcheng District, Suzhou, 215131, Jiangsu, China
| | - Xiangyu Xu
- Gastrointestinal Surgery, Suzhou Xiangcheng Peoples' Hospital, No. 1060, Huayuan Road, Xiangcheng District, Suzhou, 215131, Jiangsu, China
| | - Tieao Huang
- Gastrointestinal Surgery, Suzhou Xiangcheng Peoples' Hospital, No. 1060, Huayuan Road, Xiangcheng District, Suzhou, 215131, Jiangsu, China.
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28
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Wang J, Wang Z, Inuzuka H, Wei W, Liu J. PRMT1 methylates METTL14 to modulate its oncogenic function. Neoplasia 2023; 42:100912. [PMID: 37269817 PMCID: PMC10248872 DOI: 10.1016/j.neo.2023.100912] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/05/2023]
Abstract
N6-methyladenosine (m6A), the most abundant mRNA modification in mammalian cells, is responsible for mRNA stability and alternative splicing. The METTL3-METTL14-WTAP complex is the only methyltransferase for the m6A modification. Thus, regulation of its enzymatic activity is critical for the homeostasis of mRNA m6A levels in cells. However, relatively little is known about the upstream regulation of the METTL3-METTL14-WTAP complex, especially at the post-translational modification level. The C-terminal RGG repeats of METTL14 are critical for RNA binding. Therefore, modifications on these residues may play a regulatory role in its function. Arginine methylation is a post-translational modification catalyzed by protein arginine methyltransferases (PRMTs), among which PRMT1 preferentially methylates protein substrates with an arginine/glycine-rich motif. In addition, PRMT1 functions as a key regulator of mRNA alternative splicing, which is associated with m6A modification. To this end, we report that PRMT1 promotes the asymmetric methylation of two major arginine residues at the C-terminus of METTL14, and the reader protein SPF30 recognizes this modification. Functionally, PRMT1-mediated arginine methylation on METTL14 is likely essential for its function in catalyzing the m6A modification. Moreover, arginine methylation of METTL14 promotes cell proliferation that is antagonized by the PRMT1 inhibitor MS023. These results indicate that PRMT1 likely regulates m6A modification and promotes tumorigenesis through arginine methylation at the C-terminus of METTL14.
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Affiliation(s)
- Jingchao Wang
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Zhen Wang
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Hiroyuki Inuzuka
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Wenyi Wei
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
| | - Jing Liu
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
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29
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Wang X, Kong X, Feng X, Jiang DS. Effects of DNA, RNA, and Protein Methylation on the Regulation of Ferroptosis. Int J Biol Sci 2023; 19:3558-3575. [PMID: 37497000 PMCID: PMC10367552 DOI: 10.7150/ijbs.85454] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 06/26/2023] [Indexed: 07/28/2023] Open
Abstract
Ferroptosis is a form of programmed cell death characterized by elevated intracellular ferrous ion levels and increased lipid peroxidation. Since its discovery and characterization in 2012, considerable progress has been made in understanding the regulatory mechanisms and pathophysiological functions of ferroptosis. Recent findings suggest that numerous organ injuries (e.g., ischemia/reperfusion injury) and degenerative pathologies (e.g., aortic dissection and neurodegenerative disease) are driven by ferroptosis. Conversely, insufficient ferroptosis has been linked to tumorigenesis. Furthermore, a recent study revealed the effect of ferroptosis on hematopoietic stem cells under physiological conditions. The regulatory mechanisms of ferroptosis identified to date include mainly iron metabolism, such as iron transport and ferritinophagy, and redox systems, such as glutathione peroxidase 4 (GPX4)-glutathione (GSH), ferroptosis-suppressor-protein 1 (FSP1)-CoQ10, FSP1-vitamin K (VK), dihydroorotate dehydrogenase (DHODH)-CoQ, and GTP cyclohydrolase 1 (GCH1)-tetrahydrobiopterin (BH4). Recently, an increasing number of studies have demonstrated the important regulatory role played by epigenetic mechanisms, especially DNA, RNA, and protein methylation, in ferroptosis. In this review, we provide a critical analysis of the molecular mechanisms and regulatory networks of ferroptosis identified to date, with a focus on the regulatory role of DNA, RNA, and protein methylation. Furthermore, we discuss some debated findings and unanswered questions that should be the foci of future research in this field.
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Affiliation(s)
- Xiancan Wang
- Department of Cardiovascular Surgery, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China
| | - Xianghai Kong
- Department of Intervention & Vascular Surgery, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and echnology, Wuhan, 430014, Hubei, China
| | - Xin Feng
- Division of Cardiovascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ding-Sheng Jiang
- Division of Cardiovascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei, China
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30
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Zhang C, Yi X, Hou M, Li Q, Li X, Lu L, Qi E, Wu M, Qi L, Jian H, Qi Z, Lv Y, Kong X, Bi M, Feng S, Zhou H. The landscape of m 1A modification and its posttranscriptional regulatory functions in primary neurons. eLife 2023; 12:85324. [PMID: 36880874 PMCID: PMC9991057 DOI: 10.7554/elife.85324] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/16/2023] [Indexed: 03/08/2023] Open
Abstract
Cerebral ischaemia‒reperfusion injury (IRI), during which neurons undergo oxygen-glucose deprivation/reoxygenation (OGD/R), is a notable pathological process in many neurological diseases. N1-methyladenosine (m1A) is an RNA modification that can affect gene expression and RNA stability. The m1A landscape and potential functions of m1A modification in neurons remain poorly understood. We explored RNA (mRNA, lncRNA, and circRNA) m1A modification in normal and OGD/R-treated mouse neurons and the effect of m1A on diverse RNAs. We investigated the m1A landscape in primary neurons, identified m1A-modified RNAs, and found that OGD/R increased the number of m1A RNAs. m1A modification might also affect the regulatory mechanisms of noncoding RNAs, e.g., lncRNA-RNA binding proteins (RBPs) interactions and circRNA translation. We showed that m1A modification mediates the circRNA/lncRNA‒miRNA-mRNA competing endogenous RNA (ceRNA) mechanism and that 3' untranslated region (3'UTR) modification of mRNAs can hinder miRNA-mRNA binding. Three modification patterns were identified, and genes with different patterns had intrinsic mechanisms with potential m1A-regulatory specificity. Systematic analysis of the m1A landscape in normal and OGD/R neurons lays a critical foundation for understanding RNA modification and provides new perspectives and a theoretical basis for treating and developing drugs for OGD/R pathology-related diseases.
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Affiliation(s)
- Chi Zhang
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong UniversityJinanChina
| | - Xianfu Yi
- Department of Bioinformatics, School of Basic Medical Sciences, Tianjin Medical UniversityTianjinChina
| | - Mengfan Hou
- Department of Orthopaedics, Tianjin Medical University General Hospital, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal CordTianjinChina
| | - Qingyang Li
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong UniversityJinanChina
| | - Xueying Li
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong UniversityJinanChina
| | - Lu Lu
- Department of Orthopaedics, Tianjin Medical University General Hospital, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal CordTianjinChina
| | - Enlin Qi
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong UniversityJinanChina
| | - Mingxin Wu
- Department of Orthopaedics, Tianjin Medical University General Hospital, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal CordTianjinChina
| | - Lin Qi
- Department of Orthopedics, Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South UniversityChangshaChina
| | - Huan Jian
- Department of Orthopaedics, Tianjin Medical University General Hospital, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal CordTianjinChina
| | - Zhangyang Qi
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong UniversityJinanChina
| | - Yigang Lv
- Department of Orthopaedics, Tianjin Medical University General Hospital, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal CordTianjinChina
| | - Xiaohong Kong
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong UniversityJinanChina
| | - Mingjun Bi
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong UniversityJinanChina
| | - Shiqing Feng
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong UniversityJinanChina
- Department of Orthopaedics, Tianjin Medical University General Hospital, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal CordTianjinChina
| | - Hengxing Zhou
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong UniversityJinanChina
- Department of Orthopaedics, Tianjin Medical University General Hospital, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal CordTianjinChina
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Zeng Z, Pan Q, Sun Y, Huang H, Chen X, Chen T, He B, Ye H, Zhu S, Pu K, Fang K, Huang W, Chen Y, Wang W. METTL3 protects METTL14 from STUB1-mediated degradation to maintain m 6 A homeostasis. EMBO Rep 2023; 24:e55762. [PMID: 36597993 PMCID: PMC9986817 DOI: 10.15252/embr.202255762] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 12/14/2022] [Accepted: 12/22/2022] [Indexed: 01/05/2023] Open
Abstract
N6 -Methyladenosine (m6 A) is an important RNA modification catalyzed by methyltransferase-like 3 (METTL3) and METTL14. m6 A homeostasis mediated by the methyltransferase (MTase) complex plays key roles in various biological processes. However, the mechanism underlying METTL14 protein stability and its role in m6 A homeostasis remain elusive. Here, we show that METTL14 stability is regulated by the competitive interaction of METTL3 with the E3 ligase STUB1. STUB1 directly interacts with METTL14 to mediate its ubiquitination at lysine residues K148, K156, and K162 for subsequent degradation, resulting in a significant decrease in total m6 A levels. The amino acid regions 450-454 and 464-480 of METTL3 are essential to promote METTL14 stabilization. Changes in STUB1 expression affect METTL14 protein levels, m6 A modification and tumorigenesis. Collectively, our findings uncover an ubiquitination mechanism controlling METTL14 protein levels to fine-tune m6 A homeostasis. Finally, we present evidence that modulating STUB1 expression to degrade METTL14 could represent a promising therapeutic strategy against cancer.
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Affiliation(s)
- Zhan‐Cheng Zeng
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory for Biocontrol, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
| | - Qi Pan
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory for Biocontrol, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
| | - Yu‐Meng Sun
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory for Biocontrol, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
| | - Heng‐Jing Huang
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory for Biocontrol, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
| | - Xiao‐Tong Chen
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory for Biocontrol, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
| | - Tian‐Qi Chen
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory for Biocontrol, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
| | - Bo He
- Department of Hepatobiliary, and Department of Anesthesiology, Sun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Hua Ye
- Department of Hepatobiliary, and Department of Anesthesiology, Sun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Shun‐Xin Zhu
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory for Biocontrol, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
| | - Ke‐Jia Pu
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory for Biocontrol, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
| | - Ke Fang
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory for Biocontrol, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
| | - Wei Huang
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory for Biocontrol, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
| | - Yue‐Qin Chen
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory for Biocontrol, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
| | - Wen‐Tao Wang
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory for Biocontrol, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
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Lothion-Roy J, Haigh DB, Harris AE, Metzler VM, Alsaleem M, Toss MS, Kariri Y, Ntekim A, Robinson BD, Khani F, Gudas LJ, Allegrucci C, James VH, Madhusudan S, Mather M, Emes RD, Archer N, Fray RG, Rakha E, Jeyapalan JN, Rutland CS, Mongan NP, Woodcock CL. Clinical and molecular significance of the RNA m 6A methyltransferase complex in prostate cancer. Front Genet 2023; 13:1096071. [PMID: 36733939 PMCID: PMC9887525 DOI: 10.3389/fgene.2022.1096071] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 12/29/2022] [Indexed: 01/13/2023] Open
Abstract
N6-methyladenosine (m6A) is the most abundant internal mRNA modification and is dynamically regulated through distinct protein complexes that methylate, demethylate, and/or interpret the m6A modification. These proteins, and the m6A modification, are involved in the regulation of gene expression, RNA stability, splicing and translation. Given its role in these crucial processes, m6A has been implicated in many diseases, including in cancer development and progression. Prostate cancer (PCa) is the most commonly diagnosed non-cutaneous cancer in men and recent studies support a role for m6A in PCa. Despite this, the literature currently lacks an integrated analysis of the expression of key components of the m6A RNA methyltransferase complex, both in PCa patients and in well-established cell line models. For this reason, this study used immunohistochemistry and functional studies to investigate the mechanistic and clinical significance of the METTL3, METTL14, WTAP and CBLL1 components of the m6A methyltransferase complex in PCa specimens and cell lines. Expression of METTL3 and CBLL1, but not METTL14 and WTAP, was associated with poorer PCa patient outcomes. Expression of METTL3, METTL14, WTAP and CBLL1 was higher in PCa cells compared with non-malignant prostate cells, with the highest expression seen in castrate-sensitive, androgen-responsive PCa cells. Moreover, in PCa cell lines, expression of METTL3 and WTAP was found to be androgen-regulated. To investigate the mechanistic role(s) of the m6A methyltransferase complex in PCa cells, short hairpin RNA (shRNA)-mediated knockdown coupled with next generation sequencing was used to determine the transcriptome-wide roles of METTL3, the catalytic subunit of the m6A methyltransferase complex. Functional depletion of METTL3 resulted in upregulation of the androgen receptor (AR), together with 134 AR-regulated genes. METTL3 knockdown also resulted in altered splicing, and enrichment of cell cycle, DNA repair and metabolic pathways. Collectively, this study identified the functional and clinical significance of four essential m6A complex components in PCa patient specimens and cell lines for the first time. Further studies are now warranted to determine the potential therapeutic relevance of METTL3 inhibitors in development to treat leukaemia to benefit patients with PCa.
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Affiliation(s)
- Jennifer Lothion-Roy
- Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom,School of Veterinary Medicine and Sciences, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom
| | - Daisy B. Haigh
- Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom,School of Veterinary Medicine and Sciences, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom
| | - Anna E. Harris
- Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom,School of Veterinary Medicine and Sciences, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom
| | - Veronika M. Metzler
- School of Veterinary Medicine and Sciences, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom
| | - Mansour Alsaleem
- Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom,School of Medicine, University of Nottingham, Nottingham, United Kingdom,Department of Applied Medical Science, Applied College, Qassim University, Qassim, Saudi Arabia
| | - Michael S. Toss
- Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom,School of Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Yousif Kariri
- Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom,School of Medicine, University of Nottingham, Nottingham, United Kingdom,Department of Clinical Laboratory Science, Faculty of Applied Medical Science, Shaqra University, Shaqra, Saudi Arabia
| | - Atara Ntekim
- School of Veterinary Medicine and Sciences, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom,Department of Radiation Oncology, University Hospital Ibadan, University of Ibadan, Ibadan, Nigeria
| | - Brian D. Robinson
- Department of Pathology, Weill Cornell Medicine, New York, NY, United States
| | - Francesca Khani
- Department of Pathology, Weill Cornell Medicine, New York, NY, United States
| | - Lorraine J. Gudas
- Department of Pharmacology, Weill Cornell Medicine, New York, NY, United States
| | - Cinzia Allegrucci
- Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom,School of Veterinary Medicine and Sciences, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom
| | - Victoria H. James
- Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom,School of Veterinary Medicine and Sciences, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom
| | - Srinivasan Madhusudan
- Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom,School of Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Melissa Mather
- Faculty of Engineering, University of Nottingham, Nottingham, United Kingdom
| | - Richard D. Emes
- School of Veterinary Medicine and Sciences, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom
| | - Nathan Archer
- School of Veterinary Medicine and Sciences, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom
| | - Rupert G. Fray
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom
| | - Emad Rakha
- School of Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Jennie N. Jeyapalan
- Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom,School of Veterinary Medicine and Sciences, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom
| | - Catrin S. Rutland
- School of Veterinary Medicine and Sciences, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom
| | - Nigel P. Mongan
- Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom,School of Veterinary Medicine and Sciences, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom,Department of Pharmacology, Weill Cornell Medicine, New York, NY, United States,*Correspondence: Nigel P. Mongan, , ; Corinne L. Woodcock,
| | - Corinne L. Woodcock
- Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom,School of Veterinary Medicine and Sciences, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom,*Correspondence: Nigel P. Mongan, , ; Corinne L. Woodcock,
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METTL14 Regulates PLAGL2/ β-Catenin Signaling Axis to Promote the Development of Nonsmall Cell Lung Cancer. JOURNAL OF ONCOLOGY 2023; 2023:4738586. [PMID: 36873735 PMCID: PMC9981300 DOI: 10.1155/2023/4738586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/14/2022] [Accepted: 01/28/2023] [Indexed: 02/25/2023]
Abstract
N6-methyladenosine (m6A) is an abundant eukaryotic mRNA modification involved in regulating the formation and metastasis of nonsmall cell lung cancer (NSCLC). We collected clinical NSCLC tissue and paracarcinoma tissue. Then methyltransferase-like 14 (METTL14), pleomorphic adenoma gene like-2 (PLAGL2), and β-catenin expressions were assessed using quantitative real-time PCR and western blot. PLAGL2, and β-catenin (nuclear) expressions were increased in NSCLC tissues. Cell proliferation, migration, invasion, and death were examined. PLAGL2 could activate β-catenin signaling to affect cell proliferation and migration abilities. RNA immunoprecipitation assay was operated to identify m6A modification levels of PLAGL2 after knockdown and overexpression of METTL14. PLAGL2 was regulated by METTL14-mediated m6A modification. Knockdown of METTL14 repressed cell proliferation, migration, and invasion, and promoted cell death. Interestingly, these effects were reversed when PLAGL2 was overexpressed. Finally, tumor formation in nude mice was performed to verify the role of the METTL14/PLAGL2/β-catenin signaling axis. Tumor formation in nude mice demonstrated METTL14/PLAGL2/β-catenin axis promoted NSCLC development in vivo. In brief, METTL14 promoted NSCLC development by increasing m6A methylation of PLAGL2 to activate β-catenin signaling. Our research provided essential clues for in-depth comprehension of the mechanism of NSCLC occurrence and development and also provided the basis for NSCLC treatment.
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Liang J, Sun J, Zhang W, Wang X, Xu Y, Peng Y, Zhang L, Xiong W, Liu Y, Liu H. Novel Insights into The Roles of N 6-methyladenosine (m 6A) Modification and Autophagy in Human Diseases. Int J Biol Sci 2023; 19:705-720. [PMID: 36632456 PMCID: PMC9830520 DOI: 10.7150/ijbs.75466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 12/09/2022] [Indexed: 01/11/2023] Open
Abstract
Autophagy is an evolutionarily conserved cellular degradation and recycling process. It is important for maintaining vital cellular function and metabolism. Abnormal autophagy activity can cause the development of various diseases. N6-methyladenosine (m6A) methylation is the most prevalent and abundant internal modification in eukaryotes, affecting almost all aspects of RNA metabolism. The process of m6A modification is dynamic and adjustable. Its regulation depends on the regulation of m6A methyltransferases, m6A demethylases, and m6A binding proteins. m6A methylation and autophagy are two crucial and independent cellular events. Recent studies have shown that m6A modification mediates the transcriptional and post-transcriptional regulation of autophagy-related genes, affecting autophagy regulatory networks in multiple diseases. However, the regulatory effects of m6A regulators on autophagy in human diseases are not adequately acknowledged. In the present review, we summarized the latest knowledge of m6A modification in autophagy and elucidated the molecular regulatory mechanisms underlying m6A modification in autophagy regulatory networks. Moreover, we discuss the potentiality of m6A regulators serving as promising predictive biomarkers for human disease diagnosis and targets for therapy. This review will increase our understanding of the relationship between m6A methylation and autophagy, and provide novel insights to specifically target m6A modification in autophagy-associated therapeutic strategies.
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Affiliation(s)
- Jiaxin Liang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jingwen Sun
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Wei Zhang
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430071, China
| | - Xiwen Wang
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430071, China
| | - Ying Xu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yuan Peng
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ling Zhang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Wenqian Xiong
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yi Liu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,✉ Corresponding authors: Hengwei Liu, Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430071, China. E-mail: and Yi Liu, Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. E-mail:
| | - Hengwei Liu
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430071, China.,✉ Corresponding authors: Hengwei Liu, Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430071, China. E-mail: and Yi Liu, Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. E-mail:
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Yang Z, Zhang S, Xia T, Fan Y, Shan Y, Zhang K, Xiong J, Gu M, You B. RNA Modifications Meet Tumors. Cancer Manag Res 2022; 14:3223-3243. [PMID: 36444355 PMCID: PMC9700476 DOI: 10.2147/cmar.s391067] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 11/11/2022] [Indexed: 09/14/2023] Open
Abstract
RNA modifications occur through the whole process of gene expression regulation, including transcription, translation, and post-translational processes. They are closely associated with gene expression, RNA stability, and cell cycle. RNA modifications in tumor cells play a vital role in tumor development and metastasis, changes in the tumor microenvironment, drug resistance in tumors, construction of tumor cell-cell "internet", etc. Several types of RNA modifications have been identified to date and have various effects on the biological characteristics of different tumors. In this review, we discussed the function of RNA modifications, including N 6-methyladenine (m6A), 5-methylcytosine (m5C), N 7-methyladenosine (m7G), N 1-methyladenosine (m1A), pseudouridine (Ψ), and adenosine-to-inosine (A-to-I), in the microenvironment and therapy of solid and liquid tumors.
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Affiliation(s)
- Zhiyuan Yang
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
- Institute of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
| | - Siyu Zhang
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
- Institute of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
| | - Tian Xia
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
- Institute of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
| | - Yue Fan
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
- Institute of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
| | - Ying Shan
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
- Institute of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
| | - Kaiwen Zhang
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
- Institute of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
| | - Jiayan Xiong
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
- Institute of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
| | - Miao Gu
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
- Institute of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
| | - Bo You
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
- Institute of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, People’s Republic of China
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Zhang X, Zhang X, Liu T, Zhang Z, Piao C, Ning H. METTL14 promotes migration and invasion of choroidal melanoma by targeting RUNX2 mRNA via m6A modification. J Cell Mol Med 2022; 26:5602-5613. [PMID: 36264762 DOI: 10.1111/jcmm.17577] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 09/19/2022] [Accepted: 09/23/2022] [Indexed: 11/25/2022] Open
Abstract
The modification of N6-methyladenosine is involved in the progression of various cancers. This study aimed to clarify its regulatory mechanism in the pathogenesis of choroidal melanoma. Expression of methyltransferase-like 14 in choroidal melanoma or normal choroidal tissues was determined by Western blot and immunohistochemistry. The impacts of methyltransferase-like 14 on invasion and migration of choroidal melanoma cells were determined using functional and animal experiments. The interaction between methyltransferase-like 14 and its downstream target was identified by methylated RNA immunoprecipitation and a dual-luciferase reporter assay. Additionally, Wnt/β-catenin signalling pathway was evaluated by Western blot. Methyltransferase-like 14 was upregulated in choroidal melanoma compared to the normal choroidal tissues. Overexpression or knockdown of methyltransferase-like 14 enhanced or inhibited the invasion and migration of choroidal melanoma cells, respectively, both in vivo and in vitro. Methyltransferase-like 14 directly targeted downstream runt-related transcription factor 2 mRNA, depending on N6-methyladenosine. Additionally, the Wnt/β-catenin signalling pathway was activated by methyltransferase-like 14 in choroidal melanoma cells. Our study identified a novel RNA regulatory mechanism in which runt-related transcription factor 2 was upregulated by enhanced expression of methyltransferase-like 14 via N6-methyladenosine modification, thus facilitating migration and invasion of choroidal melanoma cells.
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Affiliation(s)
- Xi Zhang
- Department of Ophthalmology, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xiaonan Zhang
- Department of Ophthalmology, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Tengyue Liu
- Department of Ophthalmology, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Zhe Zhang
- Department of Urology, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Chiyuan Piao
- Department of Urology, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Hong Ning
- Department of Ophthalmology, The First Hospital of China Medical University, Shenyang, Liaoning, China
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Shi B, Liu WW, Yang K, Jiang GM, Wang H. The role, mechanism, and application of RNA methyltransferase METTL14 in gastrointestinal cancer. Mol Cancer 2022; 21:163. [PMID: 35974338 PMCID: PMC9380308 DOI: 10.1186/s12943-022-01634-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/08/2022] [Indexed: 11/10/2022] Open
Abstract
Gastrointestinal cancer is the most common human malignancy characterized by high lethality and poor prognosis. Emerging evidences indicate that N6-methyladenosine (m6A), the most abundant post-transcriptional modification in eukaryotes, exerts important roles in regulating mRNA metabolism including stability, decay, splicing, transport, and translation. As the key component of the m6A methyltransferase complex, methyltransferase-like 14 (METTL14) catalyzes m6A methylation on mRNA or non-coding RNA to regulate gene expression and cell phenotypes. Dysregulation of METTL14 was deemed to be involved in various aspects of gastrointestinal cancer, such as tumorigenesis, progression, chemoresistance, and metastasis. Plenty of findings have opened up new avenues for exploring the therapeutic potential of gastrointestinal cancer targeting METTL14. In this review, we systematically summarize the recent advances regarding the biological functions of METTL14 in gastrointestinal cancer, discuss its potential clinical applications and propose the research forecast.
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Affiliation(s)
- Bin Shi
- Department of Anorectal Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Heifei, China
| | - Wei-Wei Liu
- School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Ke Yang
- School of Clinical Medicine, Clinical College of Anhui Medical University, Hefei, China
| | - Guan-Min Jiang
- Department of Clinical Laboratory, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China.
| | - Hao Wang
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China. .,Core Unit of National Clinical Research Center for Laboratory Medicine, Heifei, China.
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38
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Li Y, He L, Wang Y, Tan Y, Zhang F. N 6-methyladenosine methyltransferase KIAA1429 elevates colorectal cancer aerobic glycolysis via HK2-dependent manner. Bioengineered 2022; 13:11923-11932. [PMID: 35546050 PMCID: PMC9275915 DOI: 10.1080/21655979.2022.2065952] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Emerging evidence has emphasized the critical roles played by N6-methyladenosine RNA (m6A) modification in colorectal carcinoma (CRC) initiation and progression. However, the roles and mechanism of m6A and KIAA1429 in CRC progression require further clarification. Here, our research aimed to investigate the functions of KIAA1429 in CRC tumorigenesis. Results indicated that KIAA1429 up-regulation closely correlated to the poor prognosis of CRC patients. Bio-functional assays demonstrated that KIAA1429 promoted the aerobic glycolysis, including glucose uptake, lactate production, ATP generation and extracellular acidification rate (ECAR). Mechanistically, KIAA1429 positively up-regulated HK2 level via increasing its mRNA stability by binding the m6A site of HK2 mRNA via m6A-independent manner. Collectively, our work indicates that KIAA1429 has the potential to promote CRC carcinogenesis by targeting HK2 via m6A-independent manner, providing insight into the critical roles of m6A in CRC.
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Affiliation(s)
- Ying Li
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun, China
| | - Liang He
- Department of Gastrocolorectal Surgery, The First Hospital of Jilin University, Changchun, China
| | - Yingkai Wang
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun, China
| | - Yan Tan
- Tumor Comprehensive Treatment Center, Jilin Provincial People's Hospital, Changchun, China
| | - Fan Zhang
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun, China.,Tumor Comprehensive Treatment Center, Jilin Provincial People's Hospital, Changchun, China
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Li Y, Meng L, Zhao B. The roles of N6-methyladenosine methylation in the regulation of bone development, bone remodeling and osteoporosis. Pharmacol Ther 2022; 238:108174. [PMID: 35346729 DOI: 10.1016/j.pharmthera.2022.108174] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 02/23/2022] [Accepted: 03/22/2022] [Indexed: 01/12/2023]
Abstract
N6-methyladenosine (m6A), a novel epitranscriptomic RNA modification, plays crucial roles in a variety of biological processes and diseases. Recently, there are growing evidence supporting that m6A methylation is essential for bone development and homeostasis through the regulation of key genes by regulating RNA stability, localization, turnover and translation efficiency. In this review, we summarized our current understanding of the functional roles of m6A methylation and its related regulators in bone development and bone remodeling. These findings will offer new directions and insights on the further investigations of m6A methylation in bone biology. Moreover, we also discussed important advances of m6A methylation related regulators as potential therapeutic targets, which allows for novel therapeutic strategies on the medications of bone-related diseases including osteoporosis.
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Affiliation(s)
- Yuan Li
- Department of Pharmacology, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China; Suzhou Research Institute, Shandong University, Suzhou, Jiangsu 215123, China
| | - Li Meng
- Department of Pharmacology, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Baobing Zhao
- Department of Pharmacology, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China; Key Laboratory of Chemical Biology, Ministry of Education, Shandong University, Jinan 250012, China.
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