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Jiang X, Zhan L, Tang X. RNA modifications in physiology and pathology: Progressing towards application in clinical settings. Cell Signal 2024; 121:111242. [PMID: 38851412 DOI: 10.1016/j.cellsig.2024.111242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 05/23/2024] [Accepted: 05/30/2024] [Indexed: 06/10/2024]
Abstract
The potential to modify individual nucleotides through chemical means in order to impact the electrostatic charge, hydrophobic properties, and base pairing of RNA molecules is harnessed in the medical application of stable synthetic RNAs like mRNA vaccines and synthetic small RNA molecules. These modifications are used to either increase or decrease the production of therapeutic proteins. Additionally, naturally occurring biochemical alterations of nucleotides play a role in regulating RNA metabolism and function, thereby modulating essential cellular processes. Research elucidating the mechanisms through which RNA modifications govern fundamental cellular functions in multicellular organisms has enhanced our comprehension of how irregular RNA modification profiles can lead to human diseases. Collectively, these fundamental scientific findings have unveiled the molecular and cellular functions of RNA modifications, offering new opportunities for therapeutic intervention and paving the way for a variety of innovative clinical strategies.
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Affiliation(s)
- Xue Jiang
- College of Pharmacy and Traditional Chinese Medicine, Jiangsu College of Nursing, Huaian, Jiangsu 223005, China
| | - Lijuan Zhan
- College of Pharmacy and Traditional Chinese Medicine, Jiangsu College of Nursing, Huaian, Jiangsu 223005, China.
| | - Xiaozhu Tang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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Qin J, Li Z, Su L, Wen X, Tang X, Huang M, Wu J. Expression of transferrin receptor/TFRC protein in bladder cancer cell T24 and its role in inducing iron death in bladder cancer. Int J Biol Macromol 2024; 274:133323. [PMID: 38908617 DOI: 10.1016/j.ijbiomac.2024.133323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/06/2024] [Accepted: 06/19/2024] [Indexed: 06/24/2024]
Abstract
Bladder cancer (BC) is a very common malignant tumor in the urinary system. However, the incidence rate, recurrence rate, progression rate and metastasis rate of bladder cancer are still very high, leading to poor long-term prognosis of patients. This study was to investigate the expression of transferrin receptor/TFRC protein in bladder cancer tissue and its role in inducing iron death of T24 human bladder cancer cells. Based on the intersection of 259 FerrDb genes in the iron death database with GSE13507 and GSE13167 data sets, 54 genes related to iron death in bladder cancer were obtained. Analyzing 54 genes, KEGG enrichment analysis showed that the pathways involved were mainly focused on iron death, autophagy, and tumor center carbon metabolism. GO analysis found that the molecular functions mainly gather in ubiquitin like protein ligase binding, ubiquitin protein ligase binding, and antioxidant activity. In the cellular components, it is mainly distributed in pigment granules, melanosomes, and the basal lateral plasma membrane. In biological processes, it is enriched in nutrient level responses, responses to extracellular stimuli, and cellular redox homeostasis. Screen out the top 10 core genes. The 10 core genes are SLC2A1, TFRC, EGFR, KRAS, CAV1, HSPA5, NFE2L2, VEGFA, PIK3CA, and HRAS. Finally, TFRC was selected as the research object. TCGA analysis showed that the expression level in bladder cancer tissue was higher than that in normal tissue, and the difference was statistically significant (P < 0.001). Conclusion (1) TFRC is highly expressed in many kinds of tumors, and it is more highly expressed in bladder cancer than in normal bladder tissue. (2) TFRC has certain diagnostic and prognostic value in bladder cancer. (3) Erastin, an iron death inducer, induced the iron death of T24 human bladder cancer cells, knocked down the expression of TFRC in T24 human bladder cancer cells, and preliminarily verified that silencing TFRC could inhibit the iron death of T24 human bladder cancer cells.
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Affiliation(s)
- Junkai Qin
- Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China
| | - Zhidan Li
- Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China
| | - Lize Su
- Department of Urology, Baidong Hospital, Affiliated Hospital of Youjiang Medical College for Nationalities, Baise, Guangxi 533000, China
| | - Xilin Wen
- Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China
| | - Xingzhi Tang
- Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China
| | - Minyu Huang
- Department of Urology, Baidong Hospital, Affiliated Hospital of Youjiang Medical College for Nationalities, Baise, Guangxi 533000, China.
| | - Jun Wu
- Department of Urology, Baidong Hospital, Affiliated Hospital of Youjiang Medical College for Nationalities, Baise, Guangxi 533000, China.
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Melnik BC, Weiskirchen R, Stremmel W, John SM, Schmitz G. Risk of Fat Mass- and Obesity-Associated Gene-Dependent Obesogenic Programming by Formula Feeding Compared to Breastfeeding. Nutrients 2024; 16:2451. [PMID: 39125332 PMCID: PMC11314333 DOI: 10.3390/nu16152451] [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: 06/18/2024] [Revised: 07/21/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024] Open
Abstract
It is the purpose of this review to compare differences in postnatal epigenetic programming at the level of DNA and RNA methylation and later obesity risk between infants receiving artificial formula feeding (FF) in contrast to natural breastfeeding (BF). FF bears the risk of aberrant epigenetic programming at the level of DNA methylation and enhances the expression of the RNA demethylase fat mass- and obesity-associated gene (FTO), pointing to further deviations in the RNA methylome. Based on a literature search through Web of Science, Google Scholar, and PubMed databases concerning the dietary and epigenetic factors influencing FTO gene and FTO protein expression and FTO activity, FTO's impact on postnatal adipogenic programming was investigated. Accumulated translational evidence underscores that total protein intake as well as tryptophan, kynurenine, branched-chain amino acids, milk exosomal miRNAs, NADP, and NADPH are crucial regulators modifying FTO gene expression and FTO activity. Increased FTO-mTORC1-S6K1 signaling may epigenetically suppress the WNT/β-catenin pathway, enhancing adipocyte precursor cell proliferation and adipogenesis. Formula-induced FTO-dependent alterations of the N6-methyladenosine (m6A) RNA methylome may represent novel unfavorable molecular events in the postnatal development of adipogenesis and obesity, necessitating further investigations. BF provides physiological epigenetic DNA and RNA regulation, a compelling reason to rely on BF.
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Affiliation(s)
- Bodo C. Melnik
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, D-49076 Osnabrück, Germany
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH University Hospital Aachen, D-52074 Aachen, Germany;
| | - Wolfgang Stremmel
- Praxis for Internal Medicine, Beethovenstrasse 2, D-76530 Baden-Baden, Germany;
| | - Swen Malte John
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, D-49076 Osnabrück, Germany
- Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm), University of Osnabrück, D-49076 Osnabrück, Germany;
| | - Gerd Schmitz
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital of Regensburg, D-93053 Regensburg, Germany;
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Angelin M, Gopinath P, Raghavan V, Thara R, Ahmad F, Munirajan AK, Sudesh R. Global DNA and RNA Methylation Signature in Response to Antipsychotic Treatment in First-Episode Schizophrenia Patients. Neuropsychiatr Dis Treat 2024; 20:1435-1444. [PMID: 39049939 PMCID: PMC11268744 DOI: 10.2147/ndt.s466502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 06/18/2024] [Indexed: 07/27/2024] Open
Abstract
Background Schizophrenia is a heterogeneous chronic psychiatric disorder influenced by genetic and environmental factors. Environmental factors can alter epigenetic marks, which regulate gene expression and cause an array of systemic changes. Several studies have demonstrated the association of epigenetic modulations in schizophrenia, which can influence clinical course, symptoms, and even treatment. Based on this, we have examined the global DNA methylation patterns, namely the 5-methylcytosine (5mC), 5-hydroxymethylcytosine (5hmC), 5-formylcytosine (5fC); and the global RNA modification N6-methyladenosine (m6A) RNA methylation status in peripheral blood cells. First-Episode Psychosis (FEP) patients who were diagnosed with Schizophrenia (SCZ) and undergoing treatment were stratified as Treatment-Responsive (TR) and Treatment-Non-Responsive (TNR). Age- and sex-matched healthy subjects served as controls. Results The methylation pattern of 5mC and 5hmC showed significant increases in patients in comparison to controls. Further, when patients were classified based on their response to treatment, there was a statistically significant increase in methylation patterns in the treatment non-responder group. 5fC and m6A levels did not show any statistical significance across the groups. Further, gender-based stratification did not yield any significant difference for the markers. Conclusion The study highlights the increased global methylation pattern in SCZ patients and a significant difference between the TR versus TNR groups. Global 5mC and 5hmC epigenetic marks suggest their potential roles in schizophrenia pathology, and also in the treatment response to antipsychotics. Since not many studies were available on the treatment response, further validation and the use of more sensitive techniques to study methylation status could unravel the potential of these epigenetic modifications as biomarkers for SCZ as well as distinguishing the antipsychotic treatment response in patients.
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Affiliation(s)
- Mary Angelin
- Department of Genetics, University of Madras, Dr ALM PG Institute of Basic Medical Sciences, Taramani Campus, Chennai, Tamil Nadu, 600 113, India
| | - Padmavathi Gopinath
- Department of Genetics, University of Madras, Dr ALM PG Institute of Basic Medical Sciences, Taramani Campus, Chennai, Tamil Nadu, 600 113, India
| | - Vijaya Raghavan
- Department of Genetics, University of Madras, Dr ALM PG Institute of Basic Medical Sciences, Taramani Campus, Chennai, Tamil Nadu, 600 113, India
- Schizophrenia Research Foundation, Chennai, Tamil Nadu, 600 101, India
| | - Rangaswamy Thara
- Schizophrenia Research Foundation, Chennai, Tamil Nadu, 600 101, India
| | - Faraz Ahmad
- Department of Biotechnology, School of Bioscience and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Arasamabattu Kannan Munirajan
- Department of Genetics, University of Madras, Dr ALM PG Institute of Basic Medical Sciences, Taramani Campus, Chennai, Tamil Nadu, 600 113, India
| | - Ravi Sudesh
- Department of Biomedical Sciences, School of Bioscience and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
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Tang Y, Lu X, Lin K, Li J, Yuan M, Lin K. m6A methylation of RNF43 inhibits the progression of endometriosis through regulating oxidative phosphorylation via NDUFS1. J Cell Physiol 2024:e31367. [PMID: 38988031 DOI: 10.1002/jcp.31367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/30/2024] [Accepted: 06/21/2024] [Indexed: 07/12/2024]
Abstract
Oxidative phosphorylation is becoming increasingly important in the induction and development of endometriosis. Recently, it has been reported that ring finger protein 43 (RNF43) is involved in the process of oxidative phosphorylation, but the mechanism remains unclear. Our investigation is to delve into the roles of RNF43 in endometriosis and elucidate the related mechanisms. We found RNF43 was downregulated in ectopic endometrial tissue and primary ectopic endometrial stromal cells (ECESCs). Knockdown of RNF43 enhanced cell viability and migration by activating oxidative phosphorylation in eutopic endometrial stromal cells (EUESCs), while overexpression of RNF43 led to the opposite results. Moreover, RNF43 reinforced the ubiquitination and degradation of NADH dehydrogenase Fe-S protein 1 (NDUFS1) by interacting with it. Likewise to RNF43 overexpression, NDUFS1 silencing inhibited cell viability, migration, and oxidative phosphorylation in ECESCs. NDUFS1 was a downstream target of RNF43, mediating its biological role in endometriosis. Interestingly, the expression and stability of RNF43 mRNA were regulated by the Methyltransferase-like 3 (METTL3)/IGF2BP2 m6A modification axis. The results of rat experiments showed decreased RNF43 expression and increased NDUFS1 expression in endometriosis rats, which was enhanced by METTL3 inhibition. Those observations indicated that m6A methylation-mediated RNF43 negatively affects viability and migration of endometrial stromal cells through regulating oxidative phosphorylation via NDUFS1. The discovery of METTL3/RNF43/NDUFS1 axis suggested promising therapeutic targets for endometriosis.
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Affiliation(s)
- Yuxia Tang
- The Second Affiliated School of Zhejiang Chinese Medical University, Hangzhou, China
| | - Xingfei Lu
- The Second Affiliated School of Zhejiang Chinese Medical University, Hangzhou, China
| | - Kexin Lin
- Zhejiang University ZJU-Uoe institute, Haining, China
| | - Jiayi Li
- The Second Affiliated School of Zhejiang Chinese Medical University, Hangzhou, China
| | - Ming Yuan
- Hangzhou Normal University Division of Health Sciences, Hangzhou, China
| | - Kaiqing Lin
- Department of Gynecology and Obstetrics, Integrated Chinese and Western Medicine Hospital of Zhejiang Province, Hangzhou, China
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Jalan A, Jayasree PJ, Karemore P, Narayan KP, Khandelia P. Decoding the 'Fifth' Nucleotide: Impact of RNA Pseudouridylation on Gene Expression and Human Disease. Mol Biotechnol 2024; 66:1581-1598. [PMID: 37341888 DOI: 10.1007/s12033-023-00792-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 06/08/2023] [Indexed: 06/22/2023]
Abstract
Cellular RNAs, both coding and noncoding are adorned by > 100 chemical modifications, which impact various facets of RNA metabolism and gene expression. Very often derailments in these modifications are associated with a plethora of human diseases. One of the most oldest of such modification is pseudouridylation of RNA, wherein uridine is converted to a pseudouridine (Ψ) via an isomerization reaction. When discovered, Ψ was referred to as the 'fifth nucleotide' and is chemically distinct from uridine and any other known nucleotides. Experimental evidence accumulated over the past six decades, coupled together with the recent technological advances in pseudouridine detection, suggest the presence of pseudouridine on messenger RNA, as well as on diverse classes of non-coding RNA in human cells. RNA pseudouridylation has widespread effects on cellular RNA metabolism and gene expression, primarily via stabilizing RNA conformations and destabilizing interactions with RNA-binding proteins. However, much remains to be understood about the RNA targets and their recognition by the pseudouridylation machinery, the regulation of RNA pseudouridylation, and its crosstalk with other RNA modifications and gene regulatory processes. In this review, we summarize the mechanism and molecular machinery involved in depositing pseudouridine on target RNAs, molecular functions of RNA pseudouridylation, tools to detect pseudouridines, the role of RNA pseudouridylation in human diseases like cancer, and finally, the potential of pseudouridine to serve as a biomarker and as an attractive therapeutic target.
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Affiliation(s)
- Abhishek Jalan
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani - Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal-Malkajgiri District, Telangana, 500078, India
| | - P J Jayasree
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani - Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal-Malkajgiri District, Telangana, 500078, India
| | - Pragati Karemore
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani - Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal-Malkajgiri District, Telangana, 500078, India
| | - Kumar Pranav Narayan
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani - Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal-Malkajgiri District, Telangana, 500078, India
| | - Piyush Khandelia
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani - Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal-Malkajgiri District, Telangana, 500078, India.
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Zhang S, Wu Q, Cheng W, Dong W, Kou B. YTHDC1-Mediated lncRNA MSC-AS1 m6A Modification Potentiates Laryngeal Squamous Cell Carcinoma Development via Repressing ATXN7 Transcription. Mol Biotechnol 2024:10.1007/s12033-024-01150-5. [PMID: 38637450 DOI: 10.1007/s12033-024-01150-5] [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: 07/26/2023] [Accepted: 03/19/2024] [Indexed: 04/20/2024]
Abstract
Laryngeal squamous cell carcinoma (LSCC) has the highest mortality rate among head and neck squamous cell carcinoma. This study was designed to investigate the biological effect of long noncoding RNA (lncRNA) MSC antisense RNA 1 (MSC-AS1) on LSCC development and the underlying mechanism. The expression and prognostic value of lncRNAs in head and neck squamous cell carcinoma were predicted in the bioinformatics tools. The overexpression of MSC-AS1 in LSCC patients predicted a poor prognosis. Depletion of MSC-AS1 using shRNA repressed the malignant phenotype of AMC-HN-8 and TU-177 cells. MSC-AS1, mainly localized in the nucleus, interacted closely with the transcription factor CCCTC-binding factor (CTCF). CTCF played anti-tumor effects in vitro and in vivo. Ataxin-7 (ATXN7) was predicted to be a downstream target of CTCF, whose expression was negatively controlled by MSC-AS1. MSC-AS1 was found to block the expression of CTCF, thereby repressing ATXN7. Finally, MSC-AS1 overexpression in LSCC was governed by YTH domain-containing protein 1 (YTHDC1)-mediated m6A modification. In summary, our research identified the YTHDC1/MSC-AS1/CTCF/ATXN7 axis in LSCC development, which indicated that MSC-AS1 is an attractive biomarker in the LSCC treatment.
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Affiliation(s)
- Shu Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277, Yanta West Road, Yanta District, Xi'an, 710061, Shaanxi, People's Republic of China
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010050, Inner Mongolia, People's Republic of China
| | - Qun Wu
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277, Yanta West Road, Yanta District, Xi'an, 710061, Shaanxi, People's Republic of China
| | - Wei Cheng
- Department of General Surgery, Danfeng County Hospital, Shangluo, 726200, Shaanxi, People's Republic of China
| | - Weijiang Dong
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, People's Republic of China
| | - Bo Kou
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277, Yanta West Road, Yanta District, Xi'an, 710061, Shaanxi, People's Republic of China.
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Shen X, Chen M, Zhang J, Lin Y, Gao X, Tu J, Chen K, Zhu A, Xu S. Unveiling the Impact of ApoF Deficiency on Liver and Lipid Metabolism: Insights from Transcriptome-Wide m6A Methylome Analysis in Mice. Genes (Basel) 2024; 15:347. [PMID: 38540406 PMCID: PMC10970566 DOI: 10.3390/genes15030347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/23/2024] [Accepted: 03/07/2024] [Indexed: 04/02/2024] Open
Abstract
Lipid metabolism participates in various physiological processes and has been shown to be connected to the development and progression of multiple diseases, especially metabolic hepatopathy. Apolipoproteins (Apos) act as vectors that combine with lipids, such as cholesterol and triglycerides (TGs). Despite being involved in lipid transportation and metabolism, the critical role of Apos in the maintenance of lipid metabolism has still not been fully revealed. This study sought to clarify variations related to m6A methylome in ApoF gene knockout mice with disordered lipid metabolism based on the bioinformatics method of transcriptome-wide m6A methylome epitranscriptomics. High-throughput methylated RNA immunoprecipitation sequencing (MeRIP-seq) was conducted in both wild-type (WT) and ApoF knockout (KO) mice. As a result, the liver histopathology presented vacuolization and steatosis, and the serum biochemical assays reported abnormal lipid content in KO mice. The m6A-modified mRNAs were conformed consensus sequenced in eukaryotes, and the distribution was enriched within the coding sequences and 3' non-coding regions. In KO mice, the functional annotation terms of the differentially expressed genes (DEGs) included cholesterol, steroid and lipid metabolism, and lipid storage. In the differentially m6A-methylated mRNAs, the functional annotation terms included cholesterol, TG, and long-chain fatty acid metabolic processes; lipid transport; and liver development. The overlapping DEGs and differential m6A-modified mRNAs were also enriched in terms of lipid metabolism disorder. In conclusion, transcriptome-wide MeRIP sequencing in ApoF KO mice demonstrated the role of this crucial apolipoprotein in liver health and lipid metabolism.
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Affiliation(s)
- Xuebin Shen
- Department of Cardiology, Affiliated Nanping First Hospital, Fujian Medical University, Nanping 353000, China; (X.S.); (Y.L.); (X.G.)
| | - Mengting Chen
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350108, China; (M.C.); (J.T.); (K.C.)
| | - Jian Zhang
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350108, China; (M.C.); (J.T.); (K.C.)
| | - Yifan Lin
- Department of Cardiology, Affiliated Nanping First Hospital, Fujian Medical University, Nanping 353000, China; (X.S.); (Y.L.); (X.G.)
| | - Xinyue Gao
- Department of Cardiology, Affiliated Nanping First Hospital, Fujian Medical University, Nanping 353000, China; (X.S.); (Y.L.); (X.G.)
| | - Jionghong Tu
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350108, China; (M.C.); (J.T.); (K.C.)
| | - Kunqi Chen
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350108, China; (M.C.); (J.T.); (K.C.)
| | - An Zhu
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350108, China; (M.C.); (J.T.); (K.C.)
| | - Shanghua Xu
- Department of Cardiology, Affiliated Nanping First Hospital, Fujian Medical University, Nanping 353000, China; (X.S.); (Y.L.); (X.G.)
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Zhao W, Xu Y, Zhu J, Zhang C, Zhou W, Wang S. M6A plays a potential role in carotid atherosclerosis by modulating immune cell modification and regulating aging-related genes. Sci Rep 2024; 14:60. [PMID: 38168909 PMCID: PMC10761844 DOI: 10.1038/s41598-023-50557-8] [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: 10/17/2023] [Accepted: 12/21/2023] [Indexed: 01/05/2024] Open
Abstract
RNA N6-methyladenosine (m6A) regulators play essential roles in diverse biological processes, including immune responses. Mounting evidence suggests that their dysregulation is intricately linked to numerous diseases. However, the role of m6A-associated genes in carotid atherosclerosis and their relationship with aging and immune cells remain unclear. Analyze the expression profiles of m6A-related genes in carotid atherosclerosis-related datasets. Based on the expression patterns of m6A-related genes, perform consistent clustering analysis of carotid atherosclerosis samples and investigate associated immune cell infiltration patterns and aging characteristics. Develop an m6A prediction model specific to carotid atherosclerosis and analyze the relationships between immune cells infiltration and aging features. The m6A methylation modification level exhibited a substantial decrease in early-stage carotid atherosclerosis samples compared to late-stage carotid atherosclerosis samples. Subsequently, two distinct m6A subtypes were defined through consensus clustering analysis, with the lower m6A modification level group showing associations with heightened immune cell infiltration and increased expression of aging-related genes. A model composed of five m6A-related genes was formulated, and the results indicated that this model possesses effective predictive and therapeutic capabilities for carotid atherosclerosis. Furthermore, the downregulation of YTHDC1 expression resulted in elevated expression of inflammatory factors and a decrease in the expression of the aging-related gene RGN. Single-cell data analysis suggests that the reduced expression of YTHDC1 may decrease the degradation of inflammation-related factors in macrophages, leading to a highly inflammatory state in the carotid artery wall. Furthermore, the sustained release of inflammatory factors may increase the expression of the aging-related gene RGN in vascular smooth muscle cells, further exacerbating the progression of atherosclerosis. A reduced level of m6A methylation modification could enhance inflammation and expedite cellular aging, thereby contributing to the development of carotid atherosclerosis.
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Affiliation(s)
- Wenpeng Zhao
- Department of Vascular Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Medical College, Nanchang University, No. 1 Minde Road, Nanchang, 330006, Jiangxi Province, China
| | - Yingqi Xu
- Department of Vascular Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Medical College, Nanchang University, No. 1 Minde Road, Nanchang, 330006, Jiangxi Province, China
| | - Jiabao Zhu
- Department of Vascular Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Medical College, Nanchang University, No. 1 Minde Road, Nanchang, 330006, Jiangxi Province, China
| | - Chaoxuan Zhang
- Queen Mary College, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Weimin Zhou
- Department of Vascular Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Medical College, Nanchang University, No. 1 Minde Road, Nanchang, 330006, Jiangxi Province, China.
| | - Shizhi Wang
- Department of Vascular Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Medical College, Nanchang University, No. 1 Minde Road, Nanchang, 330006, Jiangxi Province, China.
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10
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Wei H, Xu Y, Lin L, Li Y, Zhu X. A review on the role of RNA methylation in aging-related diseases. Int J Biol Macromol 2024; 254:127769. [PMID: 38287578 DOI: 10.1016/j.ijbiomac.2023.127769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 01/31/2024]
Abstract
Senescence is the underlying mechanism of organism aging and is robustly regulated at the post-transcriptional level. This regulation involves the chemical modifications, of which the RNA methylation is the most common. Recently, a rapidly growing number of studies have demonstrated that methylation is relevant to aging and aging-associated diseases. Owing to the rapid development of detection methods, the understanding on RNA methylation has gone deeper. In this review, we summarize the current understanding on the influence of RNA modification on cellular senescence, with a focus on mRNA methylation in aging-related diseases, and discuss the emerging potential of RNA modification in diagnosis and therapy.
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Affiliation(s)
- Hong Wei
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China; Department of Neurology, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China; Central Laboratory of the Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China
| | - Yuhao Xu
- Medical School, Jiangsu University, Zhenjiang, Jiangsu 212001, China
| | - Li Lin
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China; Central Laboratory of the Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China
| | - Yuefeng Li
- Medical School, Jiangsu University, Zhenjiang, Jiangsu 212001, China.
| | - Xiaolan Zhu
- Reproductive Center, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China; Central Laboratory of the Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China.
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Zhang M, Huang N, Gao Y, Feng Z, Kang B, Guo H, Jiang J, Liao S, Wang H. HNRNPC mediated m 6A methylation of 5-methyltetrahydrofolate-homocysteine methyltransferase and involved in the occurrence of RSA. J Reprod Immunol 2023; 160:104160. [PMID: 37857158 DOI: 10.1016/j.jri.2023.104160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 08/16/2023] [Accepted: 10/02/2023] [Indexed: 10/21/2023]
Abstract
N6-methyladenosine methylated modification has been shown to play roles in recurrent spontaneous abortion. We aimed to explore role of heterogeneous nuclear ribonucleoprotein C in the occurrence of recurrent spontaneous abortion. We collected embryonic villous tissues from 3 patients with recurrent spontaneous abortion (RSA group) and 3 normal control pregnancy patients. Methylated RNA immunoprecipitation sequencing, RNA sequencing, methylated RNA immunoprecipitation quantitative PCR were conducted to detect the differentially expressed m6A methylation modification gene and regulatory gene in patients with recurrent spontaneous abortion. Methylated RNA immunoprecipitation sequencing and RNA sequencing results showed that the mRNA expression level of heterogeneous nuclear ribonucleoprotein C significantly decreased in RSA group and mRNA expression level of 5-methyltetrahydrofolate-homocysteine methyltransferase increased. Real-time quantitative PCR confirmed the differential expression of heterogeneous nuclear ribonucleoprotein C and 5-methyltetrahydrofolate-homocysteine methyltransferase. Methylated RNA immunoprecipitation quantitative PCR result showed that mRNA m6A modification level of 5-methyltetrahydrofolate-homocysteine methyltransferase decreased in RSA group. The results of western blotting, real-time quantitative PCR, immunofluorescence, matrigel invasion and wound healing assays indicated that heterogeneous nuclear ribonucleoprotein C might regulate the expression of 5-methyltetrahydrofolate-homocysteine methyltransferase by mediating m6A modification, thereby reducing the proliferation and migration of trophoblast cell line, ultimately leading to the occurrence of recurrent spontaneous abortion.
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Affiliation(s)
- Mengting Zhang
- Medical Genetic Institute of Henan Province, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Nana Huang
- Medical Genetic Institute of Henan Province, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Yue Gao
- Medical Genetic Institute of Henan Province, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Zhanqi Feng
- Department of Urology, The First People's Hospital of Zhengzhou, Zhengzhou, China
| | - Bing Kang
- Medical Genetic Institute of Henan Province, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Han Guo
- Department of Pharmacology, Huadong Hospital, Fudan University, Shanghai, China
| | - Jincheng Jiang
- Medical Genetic Institute of Henan Province, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Shixiu Liao
- Medical Genetic Institute of Henan Province, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, China.
| | - Hongdan Wang
- Medical Genetic Institute of Henan Province, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, China; National Health Commission Key Laboratory of Birth Defects Prevention, Henan Key Laboratory of Population Defects Prevention, Zhengzhou, China.
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12
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Zhang Y, Xu Y, Qiu G, Luo Y, Bao Y, Lu J, Wang T, Wang Y. METTL3 Mediated MALAT1 m6A Modification Promotes Proliferation and Metastasis in Osteosarcoma Cells. Mol Biotechnol 2023:10.1007/s12033-023-00953-2. [PMID: 37897586 DOI: 10.1007/s12033-023-00953-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 10/16/2023] [Indexed: 10/30/2023]
Abstract
BACKGROUND As one of the most ubiquitous types of posttranscriptional modification, N6-methyladenosine (m6A) is extensively implicated in almost all types of cancers, including osteosarcoma. Our previous research partially uncovered the role of Metastasis Associated Lung Adenocarcinoma Transcript 1 (MALAT1) in osteosarcoma. However, the relationships between methyltransferase-like 3 (METTL3) and noncoding RNAs modified by METTL3, especially MALAT1, in osteosarcoma remain obscure. METHODS The expression of METTL3 in osteosarcoma was evaluated by online bioinformatics analysis, immunohistochemical (IHC) staining, western blotting (WB), and reverse transcription-quantitative PCR (RT‒qPCR). Cell Counting Kit 8 (CCK-8) and Transwell assays were used to evaluate the cell proliferation and invasion abilities. The expression of MALAT1 in osteosarcoma was evaluated by online bioinformatics analysis and RT‒qPCR analysis. m6A methylated RNA immunoprecipitation-qPCR (MeRIP-qPCR) was used to detect m6A modification changes in MALAT1. An actinomycin D assay was used to study changes in the stability of MALAT1. RESULTS METTL3 was upregulated in osteosarcoma tissues and cell lines. Functionally, METTL3 promoted the proliferation and migration of osteosarcoma cells. Moreover, a clear positive correlation was found between METTL3 and MALAT1 expression, and MALAT1 was upregulated in osteosarcoma tissues and cells. Mechanistically, the presence of m6A modification sites in MALAT1 and METTL3-mediated m6A modification increased the stability of MALAT1 in osteosarcoma cells and promoted their proliferation and migration. CONCLUSION In this study, it was concluded that in osteosarcoma cells, METTL3, acting as an oncogene, promoted m6A modification of MALAT1, increased the stability of MALAT, and enhanced MALAT1-mediated oncogenic function.
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Affiliation(s)
- Yuanzhuang Zhang
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, No. 5 South Seven West Road, Tiexi, Shenyang, 110024, Liaoning, P.R. China
| | - Yeqiu Xu
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, No. 5 South Seven West Road, Tiexi, Shenyang, 110024, Liaoning, P.R. China
| | - Guanzhen Qiu
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, No. 5 South Seven West Road, Tiexi, Shenyang, 110024, Liaoning, P.R. China
| | - Yinzhou Luo
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, No. 5 South Seven West Road, Tiexi, Shenyang, 110024, Liaoning, P.R. China
| | - Yuxin Bao
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, No. 5 South Seven West Road, Tiexi, Shenyang, 110024, Liaoning, P.R. China
| | - Jie Lu
- Department of Cardiology, Shenyang Fourth People's Hospital, China Medical University, Shenyang, 110031, Liaoning, P.R. China
| | - Tao Wang
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, No. 5 South Seven West Road, Tiexi, Shenyang, 110024, Liaoning, P.R. China.
| | - Yong Wang
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, No. 5 South Seven West Road, Tiexi, Shenyang, 110024, Liaoning, P.R. China.
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13
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Jayasree PJ, Dutta S, Karemore P, Khandelia P. Crosstalk Between m6A RNA Methylation and miRNA Biogenesis in Cancer: An Unholy Nexus. Mol Biotechnol 2023:10.1007/s12033-023-00921-w. [PMID: 37831403 DOI: 10.1007/s12033-023-00921-w] [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: 07/01/2023] [Accepted: 09/26/2023] [Indexed: 10/14/2023]
Abstract
N6-methyladenosine (m6A) is one of the most prevalent internal reversible chemical modification of RNAs in eukaryotes, which has attracted widespread attention recently owing to its regulatory roles in a plethora of normal developmental processes and human diseases like cancer. Deposition of the m6A mark on RNAs is mediated by the dynamic interplay between m6A regulatory proteins such as m6A RNA methyltransferases (m6A writers), m6A RNA demethylases (m6A erasers) and m6A RNA binding proteins (m6A readers). m6A regulators are ectopically expressed in various cancer types, often leading to aberrant expression of tumor-suppressor and oncogenic mRNAs either directly or indirectly via regulating the biogenesis of non-coding RNAs like miRNAs. miRNAs are tiny regulators of gene expression, which often impact various hallmarks of cancer and thus influence tumorigenesis. It is becoming increasingly clear that m6A RNA modification impacts biogenesis and function of miRNAs, and recent studies have interestingly, uncovered many miRNAs whose biogenesis and function are regulated by m6A writers, erasers and readers. In this review, we discuss various mechanisms by which m6A RNA methylation regulates miRNA biogenesis, the functional crosstalk between m6A RNA methylation and miRNAs and how it modulates various aspects of tumorigenesis. The potential of m6A RNA methylation regulated miRNAs as biomarkers and novel therapeutic targets to treat various cancers is also addressed.
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Affiliation(s)
- P J Jayasree
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani - Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal-Malkajgiri District, Hyderabad, Telangana, 500078, India
| | - Shalmoli Dutta
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani - Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal-Malkajgiri District, Hyderabad, Telangana, 500078, India
| | - Pragati Karemore
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani - Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal-Malkajgiri District, Hyderabad, Telangana, 500078, India
| | - Piyush Khandelia
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani - Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal-Malkajgiri District, Hyderabad, Telangana, 500078, India.
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14
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Shan Z, Tang W, Shi Z, Shan T. Ferroptosis: An Emerging Target for Bladder Cancer Therapy. Curr Issues Mol Biol 2023; 45:8201-8214. [PMID: 37886960 PMCID: PMC10605744 DOI: 10.3390/cimb45100517] [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: 08/27/2023] [Revised: 09/28/2023] [Accepted: 09/30/2023] [Indexed: 10/28/2023] Open
Abstract
Bladder cancer (BC), as one of the main urological cancers in the world, possesses the abilities of multiple-drug resistance and metastasis. However, there remains a significant gap in the understanding and advancement of prognosis and therapeutic strategies for BC. Ferroptosis, a novel type of iron-dependent regulated cell death, depends on lipid peroxidation, which has been proven to have a strong correlation with the development and treatment of BC. Its mechanism mainly includes three pathways, namely, lipid peroxidation, the antioxidant system, and the iron overload pathway. In this review, we reviewed the mechanism of ferroptosis, along with the related therapeutic targets and drugs for BC, as it might become a new anticancer treatment in the future.
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Affiliation(s)
- Zhengda Shan
- School of Medicine, Sun Yat-sen University, Shenzhen 518107, China;
| | - Wenbin Tang
- School of Medicine, Xiamen University, Xiamen 361102, China;
| | - Zhiyuan Shi
- School of Medicine, Xiamen University, Xiamen 361102, China;
| | - Tao Shan
- School of Basic Medicine, Qingdao University, Qingdao 266071, China
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15
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Kim J, Chun Y, Ramirez CB, Hoffner LA, Jung S, Jang KH, Rubtsova VI, Jang C, Lee G. MAPK13 stabilization via m 6A mRNA modification limits anticancer efficacy of rapamycin. J Biol Chem 2023; 299:105175. [PMID: 37599001 PMCID: PMC10511813 DOI: 10.1016/j.jbc.2023.105175] [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: 01/31/2023] [Revised: 08/10/2023] [Accepted: 08/12/2023] [Indexed: 08/22/2023] Open
Abstract
N6-adenosine methylation (m6A) is the most abundant mRNA modification that controls gene expression through diverse mechanisms. Accordingly, m6A-dependent regulation of oncogenes and tumor suppressors contributes to tumor development. However, the role of m6A-mediated gene regulation upon drug treatment or resistance is poorly understood. Here, we report that m6A modification of mitogen-activated protein kinase 13 (MAPK13) mRNA determines the sensitivity of cancer cells to the mechanistic target of rapamycin complex 1 (mTORC1)-targeting agent rapamycin. mTORC1 induces m6A modification of MAPK13 mRNA at its 3' untranslated region through the methyltransferase-like 3 (METTL3)-METTL14-Wilms' tumor 1-associating protein(WTAP) methyltransferase complex, facilitating its mRNA degradation via an m6A reader protein YTH domain family protein 2. Rapamycin blunts this process and stabilizes MAPK13. On the other hand, genetic or pharmacological inhibition of MAPK13 enhances rapamycin's anticancer effects, which suggests that MAPK13 confers a progrowth signal upon rapamycin treatment, thereby limiting rapamycin efficacy. Together, our data indicate that rapamycin-mediated MAPK13 mRNA stabilization underlies drug resistance, and it should be considered as a promising therapeutic target to sensitize cancer cells to rapamycin.
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Affiliation(s)
- Joohwan Kim
- Department of Microbiology and Molecular Genetics, Chao Family Comprehensive Cancer Center, School of Medicine, University of California Irvine, Irvine, California, USA
| | - Yujin Chun
- Department of Microbiology and Molecular Genetics, Chao Family Comprehensive Cancer Center, School of Medicine, University of California Irvine, Irvine, California, USA
| | - Cuauhtemoc B Ramirez
- Department of Microbiology and Molecular Genetics, Chao Family Comprehensive Cancer Center, School of Medicine, University of California Irvine, Irvine, California, USA; Department of Biological Chemistry, Chao Family Comprehensive Cancer Center, School of Medicine, University of California Irvine, Irvine, California, USA
| | - Lauren A Hoffner
- Department of Microbiology and Molecular Genetics, Chao Family Comprehensive Cancer Center, School of Medicine, University of California Irvine, Irvine, California, USA
| | - Sunhee Jung
- Department of Biological Chemistry, Chao Family Comprehensive Cancer Center, School of Medicine, University of California Irvine, Irvine, California, USA
| | - Ki-Hong Jang
- Department of Microbiology and Molecular Genetics, Chao Family Comprehensive Cancer Center, School of Medicine, University of California Irvine, Irvine, California, USA
| | - Varvara I Rubtsova
- Department of Biological Chemistry, Chao Family Comprehensive Cancer Center, School of Medicine, University of California Irvine, Irvine, California, USA; School of Biological Sciences, University of California Irvine, Irvine, California, USA
| | - Cholsoon Jang
- Department of Biological Chemistry, Chao Family Comprehensive Cancer Center, School of Medicine, University of California Irvine, Irvine, California, USA
| | - Gina Lee
- Department of Microbiology and Molecular Genetics, Chao Family Comprehensive Cancer Center, School of Medicine, University of California Irvine, Irvine, California, USA.
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16
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Patrasso EA, Raikundalia S, Arango D. Regulation of the epigenome through RNA modifications. Chromosoma 2023; 132:231-246. [PMID: 37138119 PMCID: PMC10524150 DOI: 10.1007/s00412-023-00794-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/10/2023] [Accepted: 04/12/2023] [Indexed: 05/05/2023]
Abstract
Chemical modifications of nucleotides expand the complexity and functional properties of genomes and transcriptomes. A handful of modifications in DNA bases are part of the epigenome, wherein DNA methylation regulates chromatin structure, transcription, and co-transcriptional RNA processing. In contrast, more than 150 chemical modifications of RNA constitute the epitranscriptome. Ribonucleoside modifications comprise a diverse repertoire of chemical groups, including methylation, acetylation, deamination, isomerization, and oxidation. Such RNA modifications regulate all steps of RNA metabolism, including folding, processing, stability, transport, translation, and RNA's intermolecular interactions. Initially thought to influence all aspects of the post-transcriptional regulation of gene expression exclusively, recent findings uncovered a crosstalk between the epitranscriptome and the epigenome. In other words, RNA modifications feedback to the epigenome to transcriptionally regulate gene expression. The epitranscriptome achieves this feat by directly or indirectly affecting chromatin structure and nuclear organization. This review highlights how chemical modifications in chromatin-associated RNAs (caRNAs) and messenger RNAs (mRNAs) encoding factors involved in transcription, chromatin structure, histone modifications, and nuclear organization affect gene expression transcriptionally.
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Affiliation(s)
- Emmely A Patrasso
- Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
- Medical and Pharmaceutical Biotechnology Program, IMC University of Applied Sciences, Krems, Austria
| | - Sweta Raikundalia
- Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Daniel Arango
- Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL, USA.
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17
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Gao P, Yao F, Pang J, Yin K, Zhu X. m 6A methylation in cellular senescence of age-associated diseases. Acta Biochim Biophys Sin (Shanghai) 2023; 55:1168-1183. [PMID: 37394885 PMCID: PMC10449638 DOI: 10.3724/abbs.2023107] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 04/14/2023] [Indexed: 07/04/2023] Open
Abstract
Cellular senescence is a state of irreversible cellular growth arrest that occurs in response to various stresses. In addition to exiting the cell cycle, senescent cells undergo many phenotypic alterations, including metabolic reprogramming, chromatin rearrangement, and senescence-associated secretory phenotype (SASP) development. Furthermore, senescent cells can affect most physiological and pathological processes, such as physiological development; tissue homeostasis; tumour regression; and age-associated disease progression, including diabetes, atherosclerosis, Alzheimer's disease, and hypertension. Although corresponding anti-senescence therapies are actively being explored for the treatment of age-associated diseases, the specific regulatory mechanisms of senescence remain unclear. N 6-methyladenosine (m 6A), a chemical modification commonly distributed in eukaryotic RNA, plays an important role in biological processes such as translation, shearing, and RNA transcription. Numerous studies have shown that m 6A plays an important regulatory role in cellular senescence and aging-related disease. In this review, we systematically summarize the role of m 6A modifications in cellular senescence with regard to oxidative stress, DNA damage, telomere alterations, and SASP development. Additionally, diabetes, atherosclerosis, and Alzheimer's disease regulation via m 6A-mediated cellular senescence is discussed. We further discuss the challenges and prospects of m 6A in cellular senescence and age-associated diseases with the aim of providing rational strategies for the treatment of these age-associated diseases.
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Affiliation(s)
- Pan Gao
- Guangxi Key Laboratory of Diabetic Systems MedicineGuilin Medical UniversityGuilin541100China
| | - Feng Yao
- Guangxi Key Laboratory of Diabetic Systems MedicineGuilin Medical UniversityGuilin541100China
| | - Jin Pang
- Guangxi Key Laboratory of Diabetic Systems MedicineGuilin Medical UniversityGuilin541100China
| | - Kai Yin
- The Fifth Affiliated Hospital of Southern Medical UniversityGuangzhou510900China
| | - Xiao Zhu
- Guangxi Key Laboratory of Diabetic Systems MedicineGuilin Medical UniversityGuilin541100China
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18
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Shi G, Li Y, Gao H, Wei Y, Wang Y. Development a m 6A regulators characterized by the immune cell infiltration in stomach adenocarcinoma for predicting the prognosis and immunotherapy response. Aging (Albany NY) 2023; 15:1944-1963. [PMID: 37019148 PMCID: PMC10085598 DOI: 10.18632/aging.204574] [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: 11/08/2022] [Accepted: 02/20/2023] [Indexed: 03/19/2023]
Abstract
N6-Methyladenosine (m6A) has attracted growing interest among scholars as an important regulator of mRNA expression. Although the significant role of m6A in multiple biological processes (like proliferation and growth of cancers) has been comprehensively described, an analysis of its possible role in stomach adenocarcinoma (STAD) of tumor immune microenvironment (TIME) remains lacking. The data for RNA expression, single nucleotide polymorphism (SNP), and copy number variation (CNV) were downloaded from The Cancer Genome Atlas (TCGA). Subsequently, 23 m6A regulators were curated, with patients being clustered into three m6A subtypes and m6A-related gene subtypes. Furthermore, they were compared based on overall survival (OS). This study also evaluates the association between m6A regulators and immune as well as response to the treatment. According to the TCGA-STAD cohort, three m6A clusters conformed to three phenotypes, immune-inflamed, immune-dessert, and immune-excluded, respectively. Patients who displayed lower m6A scores presented better overall survival outcomes. The GEO cohort demonstrated that those with a low m6A score had obvious general survival benefits and clinical advantages. Low m6A scores can carry the enhanced neoantigen loads, triggering an immune response. Meanwhile, three anti-PD-1 cohorts have confirmed the value of predicting survival outcomes. The results of this study indicate that m6A regulators are associated with TIME, and the m6A score is an efficient prognostic biomarker and predictive indicator for immunotherapy and chemotherapeutics. Moreover, comprehensive evaluations of m6A regulators in tumors will broaden our comprehension of TIME, efficiently guiding enhancing explorations on immunotherapy and chemotherapy strategies for STAD.
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Affiliation(s)
- Guodong Shi
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yang Li
- Department of Obstetrics, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Huijiang Gao
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yucheng Wei
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yuanyong Wang
- Department of Thoracic Surgery, Tangdu Hospital of Air Force Military Medical University, Xi’an, China
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19
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Rehman S, Varma A, Gupta A, Storey KB. The regulation of m 6A-related proteins during whole-body freezing of the freeze-tolerant wood frog. Biochem Cell Biol 2023; 101:77-86. [PMID: 36462217 DOI: 10.1139/bcb-2022-0164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Rana sylvatica (also known as Boreorana sylvatica) is one of the few vertebrates that spend extreme winters showing no physiological signs of life. Up to 70% of the total body water of the wood frog freezes as extracellular ice. Survival in extreme conditions requires regulation at transcriptional and translational levels to activate prosurvival pathways. N6-methyladenosine (m6A) methylation is one of the most common RNA modifications, regulating transcript processing and translation by executing important functions that affect regulatory pathways in stress conditions. In the study, regulation of m6A-related proteins in the liver of R. sylvatica was analyzed during 24 h frozen and 8 h thaw conditions. Decreases in the activity of demethylases of 28.44 ± 0.4% and 24.1 ± 0.9% of control values in frozen and thaw tissues, respectively, were observed. Total protein levels of m6A methyltransferase complex components methyltransferase-like 14 and Wilm's tumor associated protein were increased by 1.28-fold and 1.42-fold, respectively, during freezing. Demethylase fat mass and obesity, however, showed a decreasing trend, with a significant decrease in abundance during recovery from frozen conditions. Levels of mRNA degraders YTHDF2 and YTHDC2 also decreased under stress. Overall, increased levels of m6A methylation complex components, and suppressed levels of readers/erasers, provide evidence for the potential role of RNA methylation in freezing survival and its regulation in a hypometabolic state.
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Affiliation(s)
- Saif Rehman
- Department of Biology, Carleton University, Ottawa, ON K1S 5B6, Canada
| | - Anchal Varma
- Department of Biology, Carleton University, Ottawa, ON K1S 5B6, Canada
| | - Aakriti Gupta
- Department of Biology, Carleton University, Ottawa, ON K1S 5B6, Canada
| | - Kenneth B Storey
- Department of Biology, Carleton University, Ottawa, ON K1S 5B6, Canada
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20
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Tian C, An Y, Zhao J, Zhu X, Wei W, Ruan G, Li Y, Pan X. Bone Marrow Mesenchymal Stem Cells Reversed Ovarian Aging-related m6A RNA Methylation Modification Profile in Aged Granulosa Cells. Stem Cell Rev Rep 2023; 19:953-967. [PMID: 36609903 DOI: 10.1007/s12015-022-10485-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/01/2022] [Indexed: 01/09/2023]
Abstract
BACKGROUND Ovarian ageing causes endocrine disturbances and the degeneration of systemic tissue and organ functions to seriously affect women's physical and mental health, and effective treatment methods are urgently needed. Based on our previous studies using juvenile rhesus monkey bone marrow mesenchymal stem cells (BMMSCs) to treat ovarian ageing in rhesus monkey, we found that BMMSCs improved ovarian structure and function. This study continues to explore the mechanism by which BMMSCs reversed granulosa cell (GC) ageing. METHODS A GC ageing model and coculture system of BMMSCs were established, changes in the level of the N6-methyladenosine (m6A) methylation modification were detected, m6A-modified RNA immunoprecipitation sequencing (MeRIP-seq) were performed, correlations between m6A peaks and mRNA expression were determined, and the expression of hub genes was identified using Q-PCR, immunofluorescence staining, and western blot. RESULTS Our results showed that H2O2 successfully induced GC ageing and that BMMSCs reversed measures of GC ageing. BMMSCs increased the expression of the FTO protein and reduced the overall level of m6A. We identified 797 m6A peaks (348 hypomethylated and 449 hypermethylated peaks) and 817 differentially expressed genes (DEGs) (412 upregulated and 405 downregulated) after aged GCs were cocultured with BMMSCs, which significantly associated with ovarian function and epigenetic modification. The epigenetic repressive mark and important cell cycle regulator lysine demethylase 8 (KDM8) was downregulated at both the mRNA and protein levels, histone H3 was upregulated in aged GCs after BMMSC coculture, and KDM8 was upregulated after FTO was inhibited through FB23. CONCLUSIONS Our study revealed an essential role for m6A in BMMSCs in reversing GC ageing, and FTO regulated KDM8 mediates histone H3 changes may as a novel regulatory mechanism in BMMSCs to reverse GC ageing.
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Affiliation(s)
- Chuan Tian
- The Basic Medical Laboratory of the 920Th Hospital of Joint Logistics Support Force of PLA, The Transfer Medicine Key Laboratory of Cell Therapy Technology of Yunan Province, The Integrated Engineering Laboratory of Cell Biological Medicine of State and Regions, Kunming, 650032, Yunnan Province, China
| | - Yuanyuan An
- The Affiliated Stomatology of Kunming Medical University, Kunming, 650106, Yunnan Province, China
| | - Jing Zhao
- The Basic Medical Laboratory of the 920Th Hospital of Joint Logistics Support Force of PLA, The Transfer Medicine Key Laboratory of Cell Therapy Technology of Yunan Province, The Integrated Engineering Laboratory of Cell Biological Medicine of State and Regions, Kunming, 650032, Yunnan Province, China
| | - Xiangqing Zhu
- The Basic Medical Laboratory of the 920Th Hospital of Joint Logistics Support Force of PLA, The Transfer Medicine Key Laboratory of Cell Therapy Technology of Yunan Province, The Integrated Engineering Laboratory of Cell Biological Medicine of State and Regions, Kunming, 650032, Yunnan Province, China
| | - Wei Wei
- The Basic Medical Laboratory of the 920Th Hospital of Joint Logistics Support Force of PLA, The Transfer Medicine Key Laboratory of Cell Therapy Technology of Yunan Province, The Integrated Engineering Laboratory of Cell Biological Medicine of State and Regions, Kunming, 650032, Yunnan Province, China
| | - Guangping Ruan
- The Basic Medical Laboratory of the 920Th Hospital of Joint Logistics Support Force of PLA, The Transfer Medicine Key Laboratory of Cell Therapy Technology of Yunan Province, The Integrated Engineering Laboratory of Cell Biological Medicine of State and Regions, Kunming, 650032, Yunnan Province, China
| | - Ye Li
- The Basic Medical Laboratory of the 920Th Hospital of Joint Logistics Support Force of PLA, The Transfer Medicine Key Laboratory of Cell Therapy Technology of Yunan Province, The Integrated Engineering Laboratory of Cell Biological Medicine of State and Regions, Kunming, 650032, Yunnan Province, China
| | - Xinghua Pan
- The Basic Medical Laboratory of the 920Th Hospital of Joint Logistics Support Force of PLA, The Transfer Medicine Key Laboratory of Cell Therapy Technology of Yunan Province, The Integrated Engineering Laboratory of Cell Biological Medicine of State and Regions, Kunming, 650032, Yunnan Province, China.
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21
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Liu H, Zheng YL, Wang XQ. The emerging roles of N 6-methyladenosine in osteoarthritis. Front Mol Neurosci 2022; 15:1040699. [PMID: 36466802 PMCID: PMC9710225 DOI: 10.3389/fnmol.2022.1040699] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/19/2022] [Indexed: 08/30/2023] Open
Abstract
Finding new biomarkers and molecular targets to guide OA treatment remains a significant challenge. One of the most frequent forms of RNA methylation, N6-methyladenosine (m6A), can affect gene expression and RNA transcription, processing, translation, and metabolism. Osteoarthritis (OA) can cause disability and pain degenerative disease, reduce the quality of life of the elderly, and increase the social and economic burden. Changes in m6A levels are crucial in OA progress. In this review, the discussion will concentrate on the role that m6A plays in OA occurrence and progression. The m6A involved in the OA process mainly includes METTL3 and FTO. Current studies on m6A and OA primarily focus on four signaling pathways, namely, NF-κB, LNCRNAs, ATG7, and Bcl2. m6A participates in these signaling pathways and affects cellular inflammation, apoptosis, senescence, and autophagy, thus controlling the OA process. The modification of m6A affects so many signaling pathways. For the treatment of OA, it may represent a viable new therapeutic target.
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Affiliation(s)
- Hui Liu
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Yi-Li Zheng
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
- Department of Rehabilitation Medicine, Shanghai Shangti Orthopaedic Hospital, Shanghai, China
| | - Xue-Qiang Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
- Department of Rehabilitation Medicine, Shanghai Shangti Orthopaedic Hospital, Shanghai, China
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22
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Li Z, Song Y, Wang M, Shen R, Qin K, Zhang Y, Jiang T, Chi Y. m6A regulator-mediated RNA methylation modification patterns are involved in immune microenvironment regulation of coronary heart disease. Front Cardiovasc Med 2022; 9:905737. [PMID: 36093132 PMCID: PMC9453453 DOI: 10.3389/fcvm.2022.905737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 08/03/2022] [Indexed: 11/13/2022] Open
Abstract
Background Although the roles of m6A modification in the immune responses to human diseases have been increasingly revealed, their roles in immune microenvironment regulation in coronary heart disease (CHD) are poorly understood. Methods The GSE20680 and GSE20681 datasets related to CHD were acquired from the Gene Expression Omnibus (GEO) database. A total of 30 m6A regulators were used to perform LASSO regression to identify the significant genes involved in CHD. Unsupervised clustering analysis was conducted using the m6A regulators to distinguish the m6A RNA methylation patterns in patients with CHD. The differentially expressed genes (DEGs) and biological characteristics, including GO and KEGG enrichment results, were assessed for the different m6A patterns to analyse the impacts of m6A regulators on CHD. Hub genes were identified, and subsequent microRNAs-mRNAs (miRNAs–mRNAs) and mRNAs-transcriptional factors (mRNA-TFs) interaction networks were constructed by the protein and protein interaction (PPI) network method using Cytoscape software. The infiltrating proportion of immune cells was assessed by ssGSEA and the CIBERSORT algorithm. Quantitative real-time PCR (qRT-PCR) was performed to detect the expression of the significant m6A regulators and hub genes. Results Four of 30 m6A regulators (HNRNPC, YTHDC2, YTHDF3, and ZC3H13) were identified to be significant in the development of CHD. Two m6A RNA methylation clusters were distinguished by unsupervised clustering analysis based on the expression of the 30 m6A regulators. A total of 491 genes were identified as DEGs between the two clusters. A PPI network including 308 mRNAs corresponding to proteins was constructed, and 30 genes were identified as hub genes that were enriched in the bioprocesses of peptide cross-linking, keratinocyte differentiation. Twenty-seven hub genes were found to be related to miRNAs, and seven hub genes were found to be related to TFs. Moreover, among the 30 hub genes, eight genes were found to be upregulated in CHD, and three were found to be downregulated in CHD compared to the normal people. The high m6A modification pattern was associated with a higher infiltrated abundance of immune cells. Conclusion Our findings demonstrated that m6A modification plays crucial roles in the diversity and complexity of the immune microenvironment in CHD.
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Affiliation(s)
- Zhaoshui Li
- Qingdao Medical College, Qingdao University, Qingdao, China
- Heart Center Department, Qingdao Hiser Hospital Affiliated to Qingdao University, Qingdao, China
| | - Yanjie Song
- Heart Center Department, Qingdao Hiser Hospital Affiliated to Qingdao University, Qingdao, China
| | - Meng Wang
- Heart Center Department, Qingdao Hiser Hospital Affiliated to Qingdao University, Qingdao, China
| | - Ruxin Shen
- Qingdao Medical College, Qingdao University, Qingdao, China
| | - Kun Qin
- Qingdao Medical College, Qingdao University, Qingdao, China
| | - Yu Zhang
- Qingdao Medical College, Qingdao University, Qingdao, China
| | - Ting Jiang
- Heart Center Department, Qingdao Hiser Hospital Affiliated to Qingdao University, Qingdao, China
- *Correspondence: Ting Jiang
| | - Yifan Chi
- Heart Center Department, Qingdao Hiser Hospital Affiliated to Qingdao University, Qingdao, China
- Yifan Chi
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23
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Wu Z, Lin W, Yuan Q, Lyu M. A genome-wide association analysis: m6A-SNP related to the onset of oral ulcers. Front Immunol 2022; 13:931408. [PMID: 35958581 PMCID: PMC9357892 DOI: 10.3389/fimmu.2022.931408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/04/2022] [Indexed: 12/03/2022] Open
Abstract
Oral ulcers are one of the most common inflammatory diseases on oral mucosa that have obvious impacts on patients. Studies have shown that N6-methyladenosine (m6A) RNA transcription modification may be involved in the development of various inflammatory responses, and whether the pathogenesis of oral ulcers is related to m6A is unclear. This study aims to identify how m6A-related single nucleotide polymorphisms (m6A-SNPs) may affect oral ulcers. The UKBB dataset containing 10,599,054 SNPs was obtained from the GWAS database using the keyword "oral ulcer" and compared with the M6AVar database containing 13,703 m6A-SNPs.With 7,490 m6A-SNPs associated with oral ulcers identified, HaploReg and RegulomeDB were used for further functional validation and differential gene analysis was performed using the GEO database dataset GSE37265. A total of 7490 m6A-SNPs were detected in this study, 11 of which were related to oral ulcers (p<5E-08), and all of these SNPs showed eQTL signals. The SNP rs11266744 (p=2.00E-27) may regulate the expression of the local gene CCRL2, thereby participating in the pathogenesis of oral ulcers. In summary, by analyzing genome-wide association studies, this study showed that m6A modification may be involved in the pathogenesis of oral ulcers and CCRL2 may be the targeted gene.
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Affiliation(s)
- Zhuoxuan Wu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Weimin Lin
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Quan Yuan
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Mingyue Lyu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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24
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Sun D, Cai X, Shen F, Fan L, Yang H, Zheng S, Zhou L, Chen K, Wang Z. Transcriptome-Wide m6A Methylome and m6A-Modified Gene Analysis in Asthma. Front Cell Dev Biol 2022; 10:799459. [PMID: 35712670 PMCID: PMC9197130 DOI: 10.3389/fcell.2022.799459] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 04/19/2022] [Indexed: 11/25/2022] Open
Abstract
N6-methyladenosine (m6A) modification is one of the most prevalent RNA modification forms and is an important posttranscriptional mechanism for regulating genes. In previous research, we found that m6A regulator–mediated RNA methylation modification was involved in asthma; however, the specific modified genes are not clear. In this study, we systematically evaluated the transcriptome-wide m6A methylome and m6A-modified genes in asthma. Here, we performed two high-throughput sequencing methods, methylated RNA immunoprecipitation sequencing (MeRIP-seq), and RNA sequencing (RNA-seq) to identify key genes with m6A modification in asthma. Through difference analysis, we found that 416 methylation peaks were significantly upregulated and 152 methylation peaks were significantly downregulated, and it was mainly distributed in 3′ UTR. Furthermore, compared with the control group, there were 2,505 significantly upregulated genes and 4,715 significantly downregulated genes in the asthma group. Next, through a combined analysis of transcriptome and differential peaks, 14 differentially expressed genes related to RNA methylation modification were screened. Finally, through 87 health controls and 411 asthma cases from the U-BIOPRED (Unbiased Biomarkers for the Prediction of Respiratory Disease Outcomes) program, we verified three m6A-modified key genes (BCL11A, MATK, and CD300A) and found that they were mainly distributed in exons and enriched in 3' UTR. Our findings suggested that intervening in m6A-modified genes may provide a new idea for the treatment of asthma.
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Affiliation(s)
- Deyang Sun
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaolu Cai
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Fenglin Shen
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Liming Fan
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Huan Yang
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Suqun Zheng
- Department of Respiration, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Linshui Zhou
- Department of Respiration, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Ke Chen
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhen Wang
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
- Department of Respiration, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
- *Correspondence: Zhen Wang,
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25
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Li N, Gao Z, Shen J, Liu Y, Wu K, Yang J, Wang S, Zhang X, Zhu Y, Zhu J, Guan J, Liu F, Yin S. Comprehensive Analysis of N6-Methyladenosine Regulators in the Subcluster Classification and Drug Candidates Prediction of Severe Obstructive Sleep Apnea. Front Genet 2022; 13:862972. [PMID: 35559050 PMCID: PMC9086428 DOI: 10.3389/fgene.2022.862972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 04/11/2022] [Indexed: 11/24/2022] Open
Abstract
Background: Obstructive sleep apnea (OSA) is the most common type of sleep apnea that impacts the development or progression of many other disorders. Abnormal expression of N6-methyladenosine (m6A) RNA modification regulators have been found relating to a variety of human diseases. However, it is not yet known if m6A regulators are involved in the occurrence and development of OSA. Herein, we aim to explore the impact of m6A modification in severe OSA. Methods: We detected the differentially expressed m6A regulators in severe OSA microarray dataset GSE135917. The least absolute shrinkage and selection operator (LASSO) and support vector machines (SVM) were used to identify the severe OSA-related m6A regulators. Receiver operating characteristic (ROC) curves were performed to screen and verify the diagnostic markers. Consensus clustering algorithm was used to identify m6A patterns. And then, we explored the character of immune microenvironment, molecular functionals, protein-protein interaction networks and miRNA-TF coregulatory networks for each subcluster. Finally, the Connectivity Map (CMap) tools were used to tailor customized treatment strategies for different severe OSA subclusters. An independent dataset GSE38792 was used for validation. Results: We found that HNRNPA2B1, KIAA1429, ALKBH5, YTHDF2, FMR1, IGF2BP1 and IGF2BP3 were dysregulated in severe OSA patients. Among them, IGF2BP3 has a high diagnostic value in both independent datasets. Furthermore, severe OSA patients can be accurately classified into three m6A patterns (subcluster1, subcluster2, subcluster3). The immune response in subcluster3 was more active because it has high M0 Macrophages and M2 Macrophages infiltration and up-regulated human leukocyte antigens (HLAs) expression. Functional analysis showed that representative genes for each subcluster in severe OSA were assigned to histone methyltransferase, ATP synthesis coupled electron transport, virus replication, RNA catabolic, multiple neurodegeneration diseases pathway, et al. Moreover, our finding demonstrated cyclooxygenase inhibitors, several of adrenergic receptor antagonists and histamine receptor antagonists might have a therapeutic effect on severe OSA. Conclusion: Our study presents an overview of the expression pattern and crucial role of m6A regulators in severe OSA, which may provide critical insights for future research and help guide appropriate prevention and treatment options.
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Affiliation(s)
- Niannian Li
- Department of Otolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China
| | - Zhenfei Gao
- Department of Otolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China
| | - Jinhong Shen
- Department of Otolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China
| | - Yuenan Liu
- Department of Otolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China
| | - Kejia Wu
- Department of Otolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China
| | - Jundong Yang
- Department of Medicine, Jiangsu University, Zhenjiang, China
| | - Shengming Wang
- Department of Otolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoman Zhang
- Department of Otolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China
| | - Yaxin Zhu
- Department of Otolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China
| | - Jingyu Zhu
- Department of Otolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China
| | - Jian Guan
- Department of Otolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China
| | - Feng Liu
- Department of Otolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China
| | - Shankai Yin
- Department of Otolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China
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26
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Sun J, Cheng B, Su Y, Li M, Ma S, Zhang Y, Zhang A, Cai S, Bao Q, Wang S, Zhu P. The Potential Role of m6A RNA Methylation in the Aging Process and Aging-Associated Diseases. Front Genet 2022; 13:869950. [PMID: 35518355 PMCID: PMC9065606 DOI: 10.3389/fgene.2022.869950] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 03/31/2022] [Indexed: 12/15/2022] Open
Abstract
N6-methyladenosine (m6A) is the most common and conserved internal eukaryotic mRNA modification. m6A modification is a dynamic and reversible post-transcriptional regulatory modification, initiated by methylase and removed by RNA demethylase. m6A-binding proteins recognise the m6A modification to regulate gene expression. Recent studies have shown that altered m6A levels and abnormal regulator expression are crucial in the ageing process and the occurrence of age-related diseases. In this review, we summarise some key findings in the field of m6A modification in the ageing process and age-related diseases, including cell senescence, autophagy, inflammation, oxidative stress, DNA damage, tumours, neurodegenerative diseases, diabetes, and cardiovascular diseases (CVDs). We focused on the biological function and potential molecular mechanisms of m6A RNA methylation in ageing and age-related disease progression. We believe that m6A modification may provide a new target for anti-ageing therapies.
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Affiliation(s)
- Jin Sun
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Bokai Cheng
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Yongkang Su
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Man Li
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Shouyuan Ma
- Department of Geriatric Cardiology, The Second Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yan Zhang
- Department of Outpatient, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Anhang Zhang
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Shuang Cai
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Qiligeer Bao
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Shuxia Wang
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Ping Zhu
- Department of Geriatrics, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
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27
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Fang S, Peng B, Wen Y, Yang J, Wang H, Wang Z, Qian K, Wei Y, Jiao Y, Gao C, Dou L. Transcriptome-Wide Analysis of RNA N6-Methyladenosine Modification in Adriamycin-Resistant Acute Myeloid Leukemia Cells. Front Genet 2022; 13:833694. [PMID: 35571033 PMCID: PMC9100953 DOI: 10.3389/fgene.2022.833694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 03/18/2022] [Indexed: 11/28/2022] Open
Abstract
Acute myeloid leukemia (AML) is one of the most aggressive hematopoietic malignancies. Patients still suffer from refractory/relapsed disease after anthracycline-based therapy, which leads to a poor prognosis. N6-Methyladenosine (m6A) is the most abundant post-transcriptional modification in eukaryotes, the imbalance of which is reported to be associated with various pathological processes, including drug resistance. However, the relationship between m6A modification and drug resistance has not been well defined in AML. In this study, we analyzed the sequencing data of HL60 and its Adriamycin-resistant cell line HL60/ADR. We found a total of 40,550 m6A-methylated peaks, representing 15,640 genes in HL60, and 38,834 m6A-methylated peaks, representing 15,285 genes in HL60/ADR. KEGG pathway analysis showed that pathways were enriched in the FoxO signaling pathway, p53 signaling pathway, and Notch signaling pathway. MeRIP-seq results showed that the fold enrichment of the global m6A level in HL60/ADR was higher than that in HL60, and dot blot assay results indicated that the global m6A level was elevated in HL60/ADR cells compared with that in HL60 cells. Further analysis revealed that the expression level of METTL3 was elevated in HL60/ADR cells compared with that in HL60 cells. After a combined treatment of STM2457 (an inhibitor of METTL3) and Adriamycin, the proliferation of HL60/ADR was inhibited. Thus, we hypothesized that the abnormality of m6A modification played an important role in Adriamycin-resistant AML.
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Affiliation(s)
- Shu Fang
- School of Medicine, Nankai University, Tianjin, China
- Department of Hematology, the Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Bo Peng
- Department of Hematology, the Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yanan Wen
- Department of Hematology, the Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
| | - Jingjing Yang
- Department of Hematology, the Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
| | - Hao Wang
- Department of Hematology, the Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
| | - Ziwei Wang
- Department of Hematology, the Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Kun Qian
- School of Medicine, Nankai University, Tianjin, China
- Department of Hematology, the Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yan Wei
- Department of Hematology, the Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
| | - Yifan Jiao
- Department of Hematology, the Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
| | - Chunji Gao
- School of Medicine, Nankai University, Tianjin, China
- Department of Hematology, the Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
- *Correspondence: Chunji Gao, ; Liping Dou,
| | - Liping Dou
- Department of Hematology, the Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
- *Correspondence: Chunji Gao, ; Liping Dou,
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28
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Interactions of circRNAs with methylation: An important aspect of circRNA biogenesis and function (Review). Mol Med Rep 2022; 25:169. [PMID: 35302170 PMCID: PMC8971914 DOI: 10.3892/mmr.2022.12685] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 02/14/2022] [Indexed: 11/15/2022] Open
Abstract
Circular RNA (circRNA) molecules are noncoding RNAs with unique circular covalently closed structures that contribute to gene expression regulation, protein translation and act as microRNA sponges. circRNAs also have important roles in human disease, particularly tumorigenesis and antitumor processes. Methylation is an epigenetic modification that regulates the expression and roles of DNA and coding RNA and their interactions, as well as of noncoding RNA molecules. Previous studies have focused on the effects of methylation modification on circRNA expression, transport, stability, translation and degradation of circRNAs, as well as how circRNA methylation occurs and the influence of circRNAs on methylation modification processes. circRNA and methylation can also regulate disease pathogenesis via these interactions. In the present study, we define the relationship between circRNAs and methylation, as well as the functions and mechanisms of their interactions during disease progression.
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29
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Su C, Zhang Y, Chen P, Yang W, Du J, Zhang D. Methyltransferase-like 3 induces the development of cervical cancer by enhancing insulin-like growth factor 2 mRNA-binding proteins 3-mediated apoptotic chromatin condensation inducer 1 mRNA stability. Bioengineered 2022; 13:7034-7048. [PMID: 35255776 PMCID: PMC9208506 DOI: 10.1080/21655979.2022.2044261] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
N6-methyladenosine (m6A) plays a critical role in the tumorigenesis of cervical cancer (CC). Here, we aimed to investigate the potential role of methyltransferase-like 3 (METTL3) in CC. Gene expression was determined via real-time quantitative polymerase chain reaction. Cellular functions were detected using colony formation, 5-ethynyl-2'-deoxyuridine (EdU), and Transwell assays. The interactions among METTL3, insulin-like growth factor 2 mRNA-binding protein 3 (IGF2BP3), and apoptotic chromatin condensation inducer 1 (ACIN1) were confirmed using the MeRIP and RIP assays. An in vivo assay was performed to verify the role of METTL3 in CC development. METTL3 is overexpressed in CC, and therefore, its knockdown inhibits the proliferation and migration of CC cells. Silencing METTL3 inhibits tumor growth in vivo. Moreover, a positive association was observed between METTL3 and ACIN1. METTL3 interacts with IGF2BP3 to promote the mRNA stability of ACIN1, the overexpression of which induces the aggressiveness of CC cells. METTL3 promotes ACIN1 mRNA stability to accelerate CC progression, implying that METTL3 is a promising biomarker in CC.
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Affiliation(s)
- Cuihong Su
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - Yan Zhang
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - Ping Chen
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - Wei Yang
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - Jiaqiu Du
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - Danfeng Zhang
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
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30
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Yin L, Zhou L, Gao S, Feng Y, Zhu H, Xiang J, Xu R. Classification of Hepatocellular Carcinoma Based on N6-Methylandenosine–Related lncRNAs Profiling. Front Mol Biosci 2022; 9:807418. [PMID: 35187083 PMCID: PMC8854774 DOI: 10.3389/fmolb.2022.807418] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 01/05/2022] [Indexed: 12/18/2022] Open
Abstract
HCC is one of the most common types of malignancies worldwide and the fourth-leading cause of cancer deaths. Thus, there is an urgent need to search for novel targeted therapies in HCC. 186 m6a-related lncRNAs were screened for subsequent analysis. Two distinct m6A modification clusters were identified to be associated with the overall prognosis in TCGA-LIHC based on the m6A-related lncRNAs profiling, followed by univariate Cox regression analysis. In addition, four m6A-related lncRNAs prognostic signatures were developed and validated that could predict the OS of HCC patients, followed by univariate Cox regression, LASSO regression, and multivariate Cox regression analysis. Moreover, four m6A-related lncRNAs were identified to be related to HCC prognosis. ESTIMATE was used to evaluate the stromal score, immune score, ESTIMATE score, and tumor purity of each HCC sample. ssGSEA was performed to identify the enrichment levels of 29 immune signatures in each sample. Finally, quantitative real-time polymerase chain reaction shown that KDM4A-AS1, BACE1-AS, and NRAV expressions were upregulated in HCC patients. We proved that our m6A-related lncRNAs signature had powerful and robust ability for predicting OS of different HCC subgroups.
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Affiliation(s)
- Lu Yin
- Department of Pathology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
- *Correspondence: Lu Yin, ; Liuzhi Zhou,
| | - Liuzhi Zhou
- Department of Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- *Correspondence: Lu Yin, ; Liuzhi Zhou,
| | - Shiqi Gao
- Department of Neurosurgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yina Feng
- School of Statistics and Mathematics, Zhejiang Gongshang University, Hangzhou, China
| | - Hanzhang Zhu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jingjing Xiang
- Department of Pathology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Rujun Xu
- Department of Pathology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
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31
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Tang F, Chen L, Gao H, Xiao D, Li X. m6A: An Emerging Role in Programmed Cell Death. Front Cell Dev Biol 2022; 10:817112. [PMID: 35141221 PMCID: PMC8819724 DOI: 10.3389/fcell.2022.817112] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/10/2022] [Indexed: 12/20/2022] Open
Abstract
Programmed cell death is an active extinction process, including autophagy, ferroptosis, pyroptosis, apoptosis, and necroptosis. m6A is a reversible RNA modification which undergoes methylation under the action of methylases (writers), and is demethylated under the action of demethylases (erasers). The RNA base site at which m6A is modified is recognized by specialized enzymes (readers) which regulate downstream RNA translation, decay, and stability. m6A affects many aspects of mRNA metabolism, and also plays an important role in promoting the maturation of miRNA, the translation and degradation of circRNA, and the stability of lncRNA. The regulatory factors including writers, erasers and readers promote or inhibit programmed cell death via up-regulating or down-regulating downstream targets in a m6A-dependent manner to participate in the process of disease. In this review, we summarize the functions of m6A with particular reference to its role in programmed cell death.
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Affiliation(s)
- Fajuan Tang
- Department of Emergency, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
| | - Lin Chen
- Department of Emergency, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
| | - Hu Gao
- Department of Emergency, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
| | - Dongqiong Xiao
- Department of Emergency, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- *Correspondence: Dongqiong Xiao, ; Xihong Li,
| | - Xihong Li
- Department of Emergency, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- *Correspondence: Dongqiong Xiao, ; Xihong Li,
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Cheng Y, Yao XM, Zhou SM, Sun Y, Meng XJ, Wang Y, Xing YJ, Wan SJ, Hua Q. The m 6A Methyltransferase METTL3 Ameliorates Methylglyoxal-Induced Impairment of Insulin Secretion in Pancreatic β Cells by Regulating MafA Expression. Front Endocrinol (Lausanne) 2022; 13:910868. [PMID: 35872977 PMCID: PMC9304699 DOI: 10.3389/fendo.2022.910868] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 06/06/2022] [Indexed: 01/13/2023] Open
Abstract
Methylglyoxal, a major precursor of advanced glycation end products, is elevated in the plasma of patients with type 2 diabetes mellitus. Islet β-cell function was recently shown to be regulated by N6-methyladenosine (m6A), an RNA modification consisting of methylation at the N6 position of adenosine. However, the role of m6A methylation modification in methylglyoxal-induced impairment of insulin secretion in pancreatic β cells has not been clarified. In this study, we showed that treatment of two β-cell lines, NIT-1 and β-TC-6, with methylglyoxal reduced m6A RNA content and methyltransferase-like 3 (METTL3) expression levels. We also showed that silencing of METTL3 inhibited glucose-stimulated insulin secretion (GSIS) from NIT-1 cells, whereas upregulation of METTL3 significantly reversed the methylglyoxal-induced decrease in GSIS. The methylglyoxal-induced decreases in m6A RNA levels and METTL3 expression were not altered by knockdown of the receptor for the advanced glycation end product but were further decreased by silencing of glyoxalase 1. Mechanistic investigations revealed that silencing of METTL3 reduced m6A levels, mRNA stability, and the mRNA and protein expression levels of musculoaponeurotic fibrosarcoma oncogene family A (MafA). Overexpression of MafA greatly improved the decrease in GSIS induced by METTL3 silencing; silencing of MafA blocked the reversal of the MG-induced decrease in GSIS caused by METTL3 overexpression. The current study demonstrated that METTL3 ameliorates MG-induced impairment of insulin secretion in pancreatic β cells by regulating MafA.
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Affiliation(s)
- Yi Cheng
- Department of Endocrinology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, China
| | - Xin-Ming Yao
- Department of Endocrinology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, China
| | - Si-Min Zhou
- Department of Endocrinology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, China
| | - Yue Sun
- Department of Endocrinology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, China
| | - Xiang-Jian Meng
- Department of Endocrinology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, China
| | - Yong Wang
- Department of Endocrinology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, China
| | - Yu-Jie Xing
- Department of Endocrinology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, China
- Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, China
- *Correspondence: Qiang Hua, ; Shu-Jun Wan, ; Yu-Jie Xing,
| | - Shu-Jun Wan
- Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, China
- Central Laboratory of Yijishan Hospital, The First Affiliated Hospital of Wannan Medical College, Wuhu, China
- Clinical Research Center for Critical Respiratory Medicine of Anhui Province, Wannan Medical College, Wuhu, China
- *Correspondence: Qiang Hua, ; Shu-Jun Wan, ; Yu-Jie Xing,
| | - Qiang Hua
- Department of Endocrinology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, China
- Clinical Research Center for Critical Respiratory Medicine of Anhui Province, Wannan Medical College, Wuhu, China
- *Correspondence: Qiang Hua, ; Shu-Jun Wan, ; Yu-Jie Xing,
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Wang Y, Li L, Li J, Zhao B, Huang G, Li X, Xie Z, Zhou Z. The Emerging Role of m6A Modification in Regulating the Immune System and Autoimmune Diseases. Front Cell Dev Biol 2021; 9:755691. [PMID: 34869344 PMCID: PMC8635162 DOI: 10.3389/fcell.2021.755691] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 10/28/2021] [Indexed: 12/30/2022] Open
Abstract
Over the past several decades, RNA modifications have rapidly emerged as an indispensable topic in epitranscriptomics. N6-methyladenosine (m6A), namely, methylation at the sixth position of an adenine base in an RNA molecule, is the most prevalent RNA modification in both coding and noncoding RNAs. m6A has emerged as a crucial posttranscriptional regulator involved in both physiological and pathological processes. Based on accumulating evidence, m6A participates in the pathogenesis of immune-related diseases by regulating both innate and adaptive immune cells through various mechanisms. Autoimmune diseases are caused by a self-destructive immune response in the setting of genetic and environmental factors, and recent studies have discovered that m6A may play an essential role in the development of autoimmune diseases. In this review, we focus on the important role of m6A modification in biological functions and highlight its contributions to immune cells and the development of autoimmune diseases, thereby providing promising epitranscriptomic targets for preventing and treating autoimmune disorders.
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Affiliation(s)
- Yimeng Wang
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Lifang Li
- Department of Ultrasound, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Jiaqi Li
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Bin Zhao
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Gan Huang
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xia Li
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Zhiguo Xie
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Zhiguang Zhou
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, China
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Tomé-Carneiro J, de Las Hazas MCL, Boughanem H, Böttcher Y, Cayir A, Macias González M, Dávalos A. Up-to-date on the evidence linking miRNA-related epitranscriptomic modifications and disease settings. Can these modifications affect cross-kingdom regulation? RNA Biol 2021; 18:586-599. [PMID: 34843412 DOI: 10.1080/15476286.2021.2002003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
The field of epitranscriptomics is rapidly developing. Several modifications (e.g. methylations) have been identified for different RNA types. Current evidence shows that chemical RNA modifications can influence the whole molecule's secondary structure, translatability, functionality, stability, and degradation, and some are dynamically and reversibly modulated. miRNAs, in particular, are not only post-transcriptional modulators of gene expression but are themselves submitted to regulatory mechanisms. Understanding how these modifications are regulated and the resulting pathological consequences when dysregulation occurs is essential for the development of new therapeutic targets. In humans and other mammals, dietary components have been shown to affect miRNA expression and may also induce chemical modifications in miRNAs. The identification of chemical modifications in miRNAs (endogenous and exogenous) that can impact host gene expression opens up an alternative way to select new specific therapeutic targets.Hence, the aim of this review is to briefly address how RNA epitranscriptomic modifications can affect miRNA biogenesis and to summarize the existing evidence showing the connection between the (de)regulation of these processes and disease settings. In addition, we hypothesize on the potential effect certain chemical modifications could have on the potential cross-kingdom journey of dietary plant miRNAs.
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Affiliation(s)
- João Tomé-Carneiro
- Laboratory of Functional Foods, Madrid Institute for Advanced Studies (IMDEA)-food, CEI UAM + CSIM, Spain
| | | | - Hatim Boughanem
- Instituto de Investigación Biomédica de Málaga (Ibima), Unidad de Gestión Clínica de Endocrinología Y Nutrición Del Hospital Virgen de La Victoria, Málaga, Spain.,Instituto de Salud Carlos Iii (Isciii), Consorcio Ciber, M.p. Fisiopatología de La Obesidad Y Nutrición (Ciberobn), Madrid, Spain.,Vocational Health College, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Yvonne Böttcher
- Institute of Clinical Medicine, Department of Clinical Molecular Biology (EpiGen), University of Oslo, Oslo, Norway.,Department of Medical Services and Techniques (EpiGen), Akershus Universitetssykehus, Lørenskog, Norway
| | - Akin Cayir
- Institute of Clinical Medicine, Department of Clinical Molecular Biology (EpiGen), University of Oslo, Oslo, Norway.,Vocational Health College, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Manuel Macias González
- Instituto de Investigación Biomédica de Málaga (Ibima), Unidad de Gestión Clínica de Endocrinología Y Nutrición Del Hospital Virgen de La Victoria, Málaga, Spain.,Instituto de Salud Carlos Iii (Isciii), Consorcio Ciber, M.p. Fisiopatología de La Obesidad Y Nutrición (Ciberobn), Madrid, Spain
| | - Alberto Dávalos
- Laboratory of Epigenetics of Lipid Metabolism, Madrid Institute for Advanced Studies (IMDEA)-food, CEI UAM + CSIC, Spain
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Xiao K, Liu P, Yan P, Liu Y, Song L, Liu Y, Xie L. N6-methyladenosine reader YTH N6-methyladenosine RNA binding protein 3 or insulin like growth factor 2 mRNA binding protein 2 knockdown protects human bronchial epithelial cells from hypoxia/reoxygenation injury by inactivating p38 MAPK, AKT, ERK1/2, and NF-κB pathways. Bioengineered 2021; 13:11973-11986. [PMID: 34709120 PMCID: PMC9211071 DOI: 10.1080/21655979.2021.1999550] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Lung ischemia/reperfusion (I/R) injury (LIRI) is a common complication after lung transplantation, embolism, and trauma. N6-methyladenosine (m6A) methylation modification is implicated in the pathogenesis of I/R injury. However, there are no or few reports of m6A-related regulators in LIRI till now. In this text, dysregulated genes in lung tissues of LIRI rats versus the sham group were identified by RNA sequencing (RNA-seq). RNA-seq outcomes revealed that only YTH N6-methyladenosine RNA binding protein 3 (YTHDF3) and insulin-like growth factor 2 mRNA-binding protein 2 (IGF2BP2) were differentially expressed in the LIRI versus sham group among 20 m6A-related regulators. Next, the functions and molecular mechanisms of YTHDF3 and IGF2BP2 in LIRI were investigated in a hypoxia/reoxygenation-induced BEAS-2B cell injury model in vitro. Results showed that YTHDF3 or IGF2BP2 knockdown attenuated hypoxia/reoxygenation-mediated inhibitory effects on cell survival and cell cycle progression and inhibited hypoxia/reoxygenation-induced cell apoptosis and pro-inflammatory cytokine secretion in BEAS-2B cells. Genes that could be directly regulated by YTHDF3 or IGF2BP2 were identified based on prior experimental data and bioinformatics analysis. Moreover, multiple potential downstream pathways of YTHDF3 and IGF2BP2 were identified by the Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) enrichment analysis of the above-mentioned genes. Among these potential pathways, we demonstrated that YTHDF3 or IGF2BP2 knockdown inhibited hypoxia/reoxygenation-activated p38, ERK1/2, AKT, and NF-κB pathways in BEAS-2B cells. In conclusion, YTHDF3 or IGF2BP2 knockdown weakened hypoxia/reoxygenation-induced human lung bronchial epithelial cell injury by inactivating p38, AKT, ERK1/2, and NF-κB pathways.
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Affiliation(s)
- Kun Xiao
- College of Pulmonary & Critical Care Medicine, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Pengfei Liu
- College of Pulmonary & Critical Care Medicine, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Peng Yan
- College of Pulmonary & Critical Care Medicine, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Yanxin Liu
- Medical School of Chinese People's Liberation Army (PLA), Beijing, China
| | - Licheng Song
- College of Pulmonary & Critical Care Medicine, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Yuhong Liu
- College of Pulmonary & Critical Care Medicine, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China.,Medical School of Chinese People's Liberation Army (PLA), Beijing, China
| | - Lixin Xie
- College of Pulmonary & Critical Care Medicine, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
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Sun D, Yang H, Fan L, Shen F, Wang Z. m6A regulator-mediated RNA methylation modification patterns and immune microenvironment infiltration characterization in severe asthma. J Cell Mol Med 2021; 25:10236-10247. [PMID: 34647423 PMCID: PMC8572790 DOI: 10.1111/jcmm.16961] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/13/2021] [Accepted: 09/24/2021] [Indexed: 12/11/2022] Open
Abstract
N6‐methyladenosine (m6A) modification is one of the most prevalent RNA modification forms of eukaryotic mRNA and is an important post‐transcriptional mechanism for regulating genes. However, the role of m6A modification in the regulation of severe asthma has never been reported. Thus, we aimed to investigate the m6A regulator‐mediated RNA methylation modification patterns and immune microenvironment infiltration characterization in severe asthma. In this study, 87 healthy controls and 344 severe asthma cases from the U‐BIOPRED (Unbiased Biomarkers for the Prediction of Respiratory Disease Outcomes) programme were used to systematically evaluate the m6A modification patterns mediated by 27 m6A regulators and to investigate the effects of m6A modification on immune microenvironment characteristics. We found that 16 m6A regulators were abnormal and identified two key m6A regulators (YTHDF3 and YTHDC1) and three m6A modification patterns. The study of infiltration characteristics of immune microenvironment found that pattern 2 had more infiltrating immune cells and more active immune response. Besides, it was found that the eosinophils which are very important for severe asthma were affected by YTHDF3 and EIF3B. We also verified key m6A regulators with merip‐seq and found that they were mainly distributed in exons and enriched in 3′UTR. In conclusion, our findings suggested that m6A modification plays a key role in severe asthma, and may be able to guide the future strategy of immunotherapy.
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Affiliation(s)
- Deyang Sun
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Huan Yang
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Liming Fan
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Fenglin Shen
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhen Wang
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China.,Department of Respiration, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
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Huang Y, Yang Z, Huang C, Jiang X, Yan Y, Zhuang K, Wen Y, Liu F, Li P. Identification of N6-Methylandenosine-Related lncRNAs for Subtype Identification and Risk Stratification in Gastric Adenocarcinoma. Front Oncol 2021; 11:725181. [PMID: 34646770 PMCID: PMC8504261 DOI: 10.3389/fonc.2021.725181] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 09/02/2021] [Indexed: 01/11/2023] Open
Abstract
Objectives The purpose of this study was to investigate the role of m6A-related lncRNAs in gastric adenocarcinoma (STAD) and to determine their prognostic value. Methods Gene expression and clinicopathological data were obtained from The Cancer Genome Atlas (TCGA) database. Correlation analysis and univariate Cox regression analysis were conducted to identify m6A-related prognostic lncRNAs. Subsequently, different clusters of patients with STAD were identified via consensus clustering analysis, and a prognostic signature was established by least absolute shrinkage and selection operator (LASSO) Cox regression analyses. The clinicopathological characteristics, tumor microenvironment (TME), immune checkpoint genes (ICGs) expression, and the response to immune checkpoint inhibitors (ICIs) in different clusters and subgroups were explored. The prognostic value of the prognostic signature was evaluated using the Kaplan-Meier method, receiver operating characteristic curves, and univariate and multivariate regression analyses. Additionally, Gene Set Enrichment Analysis (GSEA), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway, and Gene Ontology (GO) analysis were performed for biological functional analysis. Results Two clusters based on 19 m6A-related lncRNAs were identified, and a prognostic signature comprising 14 m6A-related lncRNAs was constructed, which had significant value in predicting the OS of patients with STAD, clinicopathological characteristics, TME, ICGs expression, and the response to ICIs. Biological processes and pathways associated with cancer and immune response were identified. Conclusions We revealed the role and prognostic value of m6A-related lncRNAs in STAD. Together, our finding refreshed the understanding of m6A-related lncRNAs and provided novel insights to identify predictive biomarkers and immunotherapy targets for STAD.
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Affiliation(s)
- Yuancheng Huang
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zehong Yang
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chaoyuan Huang
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaotao Jiang
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yanhua Yan
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Kunhai Zhuang
- Department of Gastroenterology, Baiyun Branch of the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yi Wen
- Department of Gastroenterology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Fengbin Liu
- Department of Gastroenterology, Baiyun Branch of the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Peiwu Li
- Department of Gastroenterology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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Li Q, Ren CC, Chen YN, Yang L, Zhang F, Wang BJ, Zhu YH, Li FY, Yang J, Zhang ZA. A Risk Score Model Incorporating Three m6A RNA Methylation Regulators and a Related Network of miRNAs-m6A Regulators-m6A Target Genes to Predict the Prognosis of Patients With Ovarian Cancer. Front Cell Dev Biol 2021; 9:703969. [PMID: 34631700 PMCID: PMC8495156 DOI: 10.3389/fcell.2021.703969] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 07/26/2021] [Indexed: 02/01/2023] Open
Abstract
Ovarian cancer (OC) is the leading cause of cancer-related death among all gynecological tumors. N6-methyladenosine (m6A)-related regulators play essential roles in various tumors, including OC. However, the expression of m6A RNA methylation regulators and the related regulatory network in OC and their correlations with prognosis remain largely unknown. In the current study, we obtained the genome datasets of OC from GDC and GTEx database and analyzed the mRNA levels of 21 key m6A regulators in OC and normal human ovarian tissues. The expression levels of 7 m6A regulators were lower in both the OC tissues and the high-stage group. Notably, the 5-year survival rate of patients with OC presenting low VIRMA expression or high HNRNPA2B1 expression was higher than that of the controls. Next, a risk score model based on the three selected m6A regulators (VIRMA, IGF2BP1, and HNRNPA2B1) was built by performing a LASSO regression analysis, and the moderate accuracy of the risk score model to predict the prognosis of patients with OC was examined by performing ROC curve, nomogram, and univariate and multivariate Cox regression analyses. In addition, a regulatory network of miRNAs-m6A regulators-m6A target genes, including 2 miRNAs, 3 m6A regulators, and 47 mRNAs, was constructed, and one of the pathways, namely, miR-196b-5p-IGF2BP1-PTEN, was initially validated based on bioinformatic analysis and assay verification. These results demonstrated that the risk score model composed of three m6A RNA methylation regulators and the related network of miRNAs-m6A regulators-m6A target genes is valuable for predicting the prognosis of patients with OC, and these molecules may serve as potential biomarkers or therapeutic targets in the future.
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Affiliation(s)
- Qian Li
- Department of Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Province Women and Children's Hospital, Zhengzhou, China
| | - Chen-Chen Ren
- Department of Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Province Women and Children's Hospital, Zhengzhou, China
| | - Yan-Nan Chen
- Department of Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Province Women and Children's Hospital, Zhengzhou, China
| | - Li Yang
- Department of Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Province Women and Children's Hospital, Zhengzhou, China
| | - Feng Zhang
- Department of Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Province Women and Children's Hospital, Zhengzhou, China
| | - Bao-Jin Wang
- The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan International Joint Laboratory of Ovarian Malignant Tumor, Zhengzhou, China
| | - Yuan-Hang Zhu
- Department of Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Province Women and Children's Hospital, Zhengzhou, China
| | - Fei-Yan Li
- Department of Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Province Women and Children's Hospital, Zhengzhou, China
| | - Jun Yang
- Department of Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Province Women and Children's Hospital, Zhengzhou, China
| | - Zhen-An Zhang
- Department of Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Province Women and Children's Hospital, Zhengzhou, China
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Zhou L, Han X, Li W, Wang N, Yao L, Zhao Y, Zhang L. N6-methyladenosine Demethylase FTO Induces the Dysfunctions of Ovarian Granulosa Cells by Upregulating Flotillin 2. Reprod Sci 2021; 29:1305-1315. [PMID: 34254281 DOI: 10.1007/s43032-021-00664-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 06/10/2021] [Indexed: 12/11/2022]
Abstract
Polycystic ovarian syndrome (PCOS) is often accompanied by overweight/obesity and insulin resistance. The dysfunctions of ovarian granulosa cells (GCs) are closely linked with the pathogenesis of PCOS. Fat mass and obesity-associated gene (FTO), an N6-methyladenosine (m6A) demethylase, has been reported to be implicated in the risks and insulin resistance of PCOS. However, the roles of FTO in the development of GCs along with its m6A-related regulatory mechanisms are poorly defined. Cell proliferative ability was detected by MTT assay. Cell apoptotic rate was measured via flow cytometry. Insulin resistance was assessed by GLUT4 transport potential. The mRNA and protein levels of FTO and flotillin 2 (FLOT2) were determined by RT-qPCR and western blot assays, respectively. FLOT2 was screened out to be a potential FTO target through differential expression analysis for the GSE95728 dataset and target prediction analysis by POSTAR2 and STARBASE databases. The interaction between FTO and FLOT2 was analyzed by RNA immunoprecipitation (RIP) assay. The effect of FTO upregulation on FLOT2 m6A level was measured by methylated RIP (meRIP) assay. FLOT2 mRNA stability was examined by actinomycin D assay. FTO overexpression facilitated cell proliferation, hindered cell apoptosis, and induced insulin resistance in GCs. FTO promoted FLOT2 expression by reducing m6A level on FLOT2 mRNA and increasing FLOT2 mRNA stability. FLOT2 loss weakened the effects of FTO overexpression on cell proliferation/apoptosis and insulin resistance in GCs. FTO induced the dysfunctions of GCs by upregulating FLOT2, suggesting that FTO/FLOT2 might play a role in the pathophysiology of PCOS.
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Affiliation(s)
- Li Zhou
- Department of Gynecology, The First Hospital of Jilin University, No. 71, Xinmin Street, Changchun, 130021, Jilin, China
| | - Xiao Han
- Department of Gynecology, The First Hospital of Jilin University, No. 71, Xinmin Street, Changchun, 130021, Jilin, China
| | - Wei Li
- Department of Gynecology, The First Hospital of Jilin University, No. 71, Xinmin Street, Changchun, 130021, Jilin, China
| | - Ning Wang
- Department of Gynecology, The First Hospital of Jilin University, No. 71, Xinmin Street, Changchun, 130021, Jilin, China
| | - Lan Yao
- Department of Gynecology, The First Hospital of Jilin University, No. 71, Xinmin Street, Changchun, 130021, Jilin, China
| | - Yunhe Zhao
- Department of Gynaecology and Obstetrics, Xiangyang Central Hospital, The Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, 441000, China
| | - Liqun Zhang
- Department of Gynecology, The First Hospital of Jilin University, No. 71, Xinmin Street, Changchun, 130021, Jilin, China.
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Sivasudhan E, Blake N, Lu ZL, Meng J, Rong R. Dynamics of m6A RNA Methylome on the Hallmarks of Hepatocellular Carcinoma. Front Cell Dev Biol 2021; 9:642443. [PMID: 33869193 PMCID: PMC8047153 DOI: 10.3389/fcell.2021.642443] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/23/2021] [Indexed: 12/19/2022] Open
Abstract
Epidemiological data consistently rank hepatocellular carcinoma (HCC) as one of the leading causes of cancer-related deaths worldwide, often posing severe economic burden on health care. While the molecular etiopathogenesis associated with genetic and epigenetic modifications has been extensively explored, the biological influence of the emerging field of epitranscriptomics and its associated aberrant RNA modifications on tumorigenesis is a largely unexplored territory with immense potential for discovering new therapeutic approaches. In particular, the underlying cellular mechanisms of different hallmarks of hepatocarcinogenesis that are governed by the complex dynamics of m6A RNA methylation demand further investigation. In this review, we reveal the up-to-date knowledge on the mechanistic and functional link between m6A RNA methylation and pathogenesis of HCC.
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Affiliation(s)
- Enakshi Sivasudhan
- Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, China.,Department of Clinical Infection, Microbiology and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Neil Blake
- Department of Clinical Infection, Microbiology and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Zhi-Liang Lu
- Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, China.,Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Jia Meng
- Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, China.,Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Rong Rong
- Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, China.,Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
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Han Z, Yang B, Wang Q, Hu Y, Wu Y, Tian Z. Comprehensive analysis of the transcriptome-wide m 6A methylome in invasive malignant pleomorphic adenoma. Cancer Cell Int 2021; 21:142. [PMID: 33653351 PMCID: PMC7923655 DOI: 10.1186/s12935-021-01839-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 02/17/2021] [Indexed: 02/06/2023] Open
Abstract
Background Invasive malignant pleomorphic adenoma (IMPA) is a highly invasive parotid gland tumor and lacks effective therapy. N6-Methyladenosine (m6A) is the most prevalent post-transcriptional modification of mRNAs in eukaryotes and plays an important role in the pathogenesis of multiple tumors. However, the significance of m6A-modified mRNAs in IMPA has not been elucidated to date. Hence, in this study, we attempted to profile the effect of IMPA in terms of m6A methylation in mRNA. Methods Methylated RNA immunoprecipitation with next-generation sequencing (MeRIP-seq) and RNA sequencing (RNA-seq) were utilized to acquire the first transcriptome-wide profiling of the m6A methylome map in IMPA followed by bioinformatics analysis. Results In this study, we obtained m6A methylation maps of IMPA samples and normal adjacent tissues through MeRIP-seq. In total, 25,490 m6A peaks associated with 13,735 genes were detected in the IMPA group, whereas 33,930 m6A peaks associated with 18,063 genes were detected in the control group. Peaks were primarily enriched within coding regions and near stop codons with AAACC and GGAC motifs. Moreover, functional enrichment analysis demonstrated that m6A-containing genes were significantly enriched in cancer and metabolism relevant pathways. Furthermore, we identified a relationship between the m6A methylome and the RNA transcriptome, indicating a mechanism by which m6A modulates gene expression. Conclusions Our study is the first to provide comprehensive and transcriptome-wide profiles to determine the potential roles played by m6A methylation in IMPA. These results may open new avenues for in-depth research elucidating the m6A topology of IMPA and the molecular mechanisms governing the formation and progression of IMPA.
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Affiliation(s)
- Zhenyuan Han
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.,National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
| | - Biao Yang
- Department of Neurosurgery, Huashan Hospital of Fudan University, Shanghai, 200040, China
| | - Qin Wang
- Clinical Translational Research Center, Shanghai Pulmonary Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Yuhua Hu
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yuqiong Wu
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China. .,Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
| | - Zhen Tian
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
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FTO overexpression inhibits apoptosis of hypoxia/reoxygenation-treated myocardial cells by regulating m6A modification of Mhrt. Mol Cell Biochem 2021; 476:2171-2179. [PMID: 33548009 DOI: 10.1007/s11010-021-04069-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 01/12/2021] [Indexed: 12/19/2022]
Abstract
Heart failure (HF) is the end stage of many cardiovascular diseases and seriously threatens people's health. This article aimed to explore the biological role of fat-mass and obesity-associated gene (FTO) in HF. We constructed HF mouse model by transverse aortic constriction or intraperitoneal injection of doxorubicin. Mouse myocardial cells were exposed to hypoxia/reoxygenation (H/R). FTO and Mhrt were downregulated in heart tissues of HF mice. HF mice exhibited an increase in the total levels of N6 methyladenosine (m6A) and the m6A levels of Mhrt. Moreover, FTO overexpression caused an upregulation of Mhrt and reduced m6A modification of Mhrt in the H/R-treated myocardial cells. FTO upregulation repressed apoptosis of H/R-treated myocardial cells. FTO knockdown had the opposite results. Mhrt overexpression reduced apoptosis of H/R-treated myocardial cells. Moreover, the influence conferred by FTO upregulation was abolished by Mhrt knockdown. In conclusion, our data demonstrate that FTO overexpression inhibits apoptosis of hypoxia/reoxygenation-treated myocardial cells by regulating m6A modification of Mhrt. Thus, FTO may be a target gene for HF treatment.
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Karthiya R, Wasil SM, Khandelia P. Emerging role of N4-acetylcytidine modification of RNA in gene regulation and cellular functions. Mol Biol Rep 2020; 47:9189-9199. [PMID: 33174082 DOI: 10.1007/s11033-020-05963-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 10/29/2020] [Indexed: 01/08/2023]
Abstract
Post-transcriptional chemical modification of RNA is rapidly emerging as a key player in regulating gene expression and has propelled the development of 'epitranscriptomics' or 'RNA epigenetics' as a frontier area of research. Several RNA modifications are known to decorate RNAs and impact its structure and function. One such recently discovered modification is acetylation of RNA i.e. N4-acetylcytidine (ac4C) chemical modification. N4-acetylcytidine is an ancient and evolutionarily conserved modification, which maps to a wide spectrum of RNAs from archaea bacteria to humans. This modification results in a variety of functional outcomes which impact normal development and disease. In this review, we summarize the recent progress, emerging methods, biological implications and the future challenges for ac4C modification.
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Affiliation(s)
- R Karthiya
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani - Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal District, Hyderabad, Telangana, 500078, India
| | - S Mohammed Wasil
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani - Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal District, Hyderabad, Telangana, 500078, India
| | - Piyush Khandelia
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani - Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal District, Hyderabad, Telangana, 500078, India.
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