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Chen Y, Long T, Chen J, Wei H, Meng J, Kang M, Wang J, Zhang X, Xu Q, Zhang C, Xiong K. WTAP participates in neuronal damage by protein translation of NLRP3 in an m6A-YTHDF1-dependent manner after traumatic brain injury. Int J Surg 2024; 110:5396-5408. [PMID: 38874470 PMCID: PMC11392096 DOI: 10.1097/js9.0000000000001794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 05/30/2024] [Indexed: 06/15/2024]
Abstract
BACKGROUND Traumatic brain injury (TBI) is a common complication of acute and severe neurosurgery. Remodeling of N6-methyladenosine (m6A) stabilization may be an attractive treatment option for neurological dysfunction after TBI. In the present study, the authors explored the epigenetic methylation of RNA-mediated NLRP3 inflammasome activation after TBI. METHODS Neurological dysfunction, histopathology, and associated molecules were examined in conditional knockout (CKO) WTAP [flox/flox, Camk2a-cre] , WTAP flox/flox , and pAAV-U6-shRNA-YTHDF1-transfected mice. Primary neurons were used in vitro to further explore the molecular mechanisms of action of WTAP/YTHDF1 following neural damage. RESULTS The authors found that WTAP and m6A levels were upregulated at an early stage after TBI, and conditional deletion of WTAP in neurons did not affect neurological function but promoted functional recovery after TBI. Conditional deletion of WTAP in neurons suppressed neuroinflammation at the TBI early phase: WTAP could directly act on NLRP3 mRNA, regulate NLRP3 mRNA m6A level, and promote NLRP3 expression after neuronal injury. Further investigation found that YTH domain of YTHDF1 could directly bind to NLRP3 mRNA and regulate NLRP3 protein expression. YTHDF1 mutation or silencing improved neuronal injury, inhibited Caspase-1 activation, and decreased IL-1β levels. This effect was mediated via suppression of NLRP3 protein translation, which also reversed the stimulative effect of WTAP overexpression on NLRP3 expression and inflammation. CONCLUSIONS Our results indicate that WTAP participates in neuronal damage by protein translation of NLRP3 in an m6A-YTHDF1-dependent manner after TBI and that WTAP/m6A/YTHDF1 downregulation therapeutics is a viable and promising approach for preserving neuronal function after TBI, which can provide support for targeted drug development.
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Affiliation(s)
- Yuhua Chen
- Department of Neurosurgery, Bijie Traditional Chinese Medical Hospital, Bijie, Guizhou
- Department of Central Laboratory, Xi'an Peihua University, Xi'an, Shaanxi
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan
| | - Tianlin Long
- Department of Neurosurgery, Bijie Traditional Chinese Medical Hospital, Bijie, Guizhou
| | - Junhui Chen
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan
- Department of Neurosurgery, Wuxi Clinical College of Anhui Medical University, 904 Hospital of Joint Logistic Support Force of PLA, Wuxi, Jiangsu Province
| | - Hong Wei
- Department of Rehabilitation Teaching and Research, Xi'an Siyuan University, Xi'an
| | - Jiao Meng
- Department of Neurosurgery, Bijie Traditional Chinese Medical Hospital, Bijie, Guizhou
- Department of Central Laboratory, Xi'an Peihua University, Xi'an, Shaanxi
| | - Meili Kang
- Department of Central Laboratory, Xi'an Peihua University, Xi'an, Shaanxi
| | - Juning Wang
- Department of Central Laboratory, Xi'an Peihua University, Xi'an, Shaanxi
| | - Xin Zhang
- Department of Neurosurgery, Bijie Traditional Chinese Medical Hospital, Bijie, Guizhou
| | - Quanhua Xu
- Department of Neurosurgery, Bijie Traditional Chinese Medical Hospital, Bijie, Guizhou
| | - Chi Zhang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha
| | - Kun Xiong
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan
- Key Laboratory of Emergency and Trauma, Ministry of Education, College of Emergency and Trauma, Hainan Medical University, Haikou, Hainan
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, People's Republic of 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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Lei Y, Zhan E, Chen C, Hu Y, Lv Z, He Q, Wang X, Li X, Zhang F. ALKBH5-mediated m 6A demethylation of Runx2 mRNA promotes extracellular matrix degradation and intervertebral disc degeneration. Cell Biosci 2024; 14:79. [PMID: 38877576 PMCID: PMC11179301 DOI: 10.1186/s13578-024-01264-y] [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: 10/30/2023] [Accepted: 06/06/2024] [Indexed: 06/16/2024] Open
Abstract
BACKGROUND N6-methyladenosine (m6A) methylation is a prevalent RNA modification implicated in various diseases. However, its role in intervertebral disc degeneration (IDD), a common cause of low back pain, remains unclear. RESULTS In this investigation, we explored the involvement of m6A demethylation in the pathogenesis of IDD. Our findings revealed that ALKBH5 (alkylated DNA repair protein AlkB homolog 5), an m6A demethylase, exhibited upregulation in degenerative discs upon mild inflammatory stimulation. ALKBH5 facilitated m6A demethylation within the three prime untranslated region (3'-UTR) of Runx2 mRNA, consequently enhancing its mRNA stability in a YTHDF1 (YTH N6-methyladenosine RNA binding protein F1)-dependent manner. The subsequent elevation in Runx2 expression instigated the upregulation of ADAMTSs and MMPs, pivotal proteases implicated in extracellular matrix (ECM) degradation and IDD progression. In murine models, subcutaneous administration of recombinant Runx2 protein proximal to the lumbar disc in mice elicited complete degradation of intervertebral discs (IVDs). Injection of recombinant MMP1a and ADAMTS10 proteins individually induced mild to moderate degeneration of the IVDs, while co-administration of MMP1a and ADAMTS10 resulted in moderate to severe degeneration. Notably, concurrent injection of the Runx2 inhibitor CADD522 with recombinant Runx2 protein did not result in IVD degeneration in mice. Furthermore, genetic knockout of ALKBH5 and overexpression of YTHDF1 in mice, along with lipopolysaccharide (LPS) treatment to induce inflammation, did not alter the expression of Runx2, MMPs, and ADAMTSs, and no degeneration of the IVDs was observed. CONCLUSION Our study elucidates the role of ALKBH5-mediated m6A demethylation of Runx2 mRNA in activating MMPs and ADAMTSs, thereby facilitating ECM degradation and promoting the occurrence of IDD. Our findings suggest that targeting the ALKBH5/Runx2/MMPs/ADAMTSs axis may represent a promising therapeutic strategy for preventing IDD.
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Affiliation(s)
- Yu Lei
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, 295 Xichang Rd, Wuhua District, Kunming, Yunnan, 650032, China
| | - Enyu Zhan
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, 295 Xichang Rd, Wuhua District, Kunming, Yunnan, 650032, China
| | - Chao Chen
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, 295 Xichang Rd, Wuhua District, Kunming, Yunnan, 650032, China
| | - Yaoquan Hu
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, 295 Xichang Rd, Wuhua District, Kunming, Yunnan, 650032, China
| | - Zhengpin Lv
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, 295 Xichang Rd, Wuhua District, Kunming, Yunnan, 650032, China
| | - Qicong He
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, 295 Xichang Rd, Wuhua District, Kunming, Yunnan, 650032, China
| | - Xuenan Wang
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, 295 Xichang Rd, Wuhua District, Kunming, Yunnan, 650032, China
| | - Xingguo Li
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, 295 Xichang Rd, Wuhua District, Kunming, Yunnan, 650032, China
| | - Fan Zhang
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, 295 Xichang Rd, Wuhua District, Kunming, Yunnan, 650032, China.
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4
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Ye D, Zhang Y, Zhang B, Liu J, Wei T, Lu S. The regulatory role of m 6A methylation modification in metabolic syndrome pathogenesis and progression. Front Physiol 2024; 15:1271874. [PMID: 38562618 PMCID: PMC10984216 DOI: 10.3389/fphys.2024.1271874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 02/29/2024] [Indexed: 04/04/2024] Open
Abstract
Metabolic syndromes are characterized by various complications caused by disrupted glucose and lipid metabolism, which are major factors affecting the health of a population. However, existing diagnostic and treatment strategies have limitations, such as the lack of early diagnostic and therapeutic approaches, variability in patient responses to treatment, and cost-effectiveness. Therefore, developing alternative solutions for metabolic syndromes is crucial. N6-methyladenosine (m6A) is one of the most abundant modifications that determine the fate of RNA. m6A modifications are closely associated with metabolic syndrome development and present novel prospects for clinical applications. Aberrant m6A modifications have been detected during inflammatory infiltration, apoptosis, autophagy, iron sagging, necrosis, and scorching during metabolic syndrome pathogenesis and progression. However, few reviews have systematically described the correlation between m6A modifications and these factors concerning metabolic syndrome pathogenesis and progression. This study summarizes the m6A methylation regulators and their roles in metabolic syndrome development, highlighting the potential of m6A modification as a biomarker in metabolic disorders.
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Affiliation(s)
- Diwen Ye
- Department of Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
| | - Yongjiao Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
| | - Bingyang Zhang
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
| | - Junjun Liu
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
| | - Tianshu Wei
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
| | - Sumei Lu
- Department of Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
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5
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Li YL, Zhang Y, Chen N, Yan YX. The role of m 6A modification in type 2 diabetes: A systematic review and integrative analysis. Gene 2024; 898:148130. [PMID: 38181926 DOI: 10.1016/j.gene.2024.148130] [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: 11/02/2023] [Revised: 12/14/2023] [Accepted: 01/02/2024] [Indexed: 01/07/2024]
Abstract
This study focuses on the latest developments in the studies of m6A modification and provides an up-to-date summary of the association between m6A modification and type 2 diabetes (T2D). The possible mechanisms of m6A related to T2D were summarized by literature review. The differentially expressed genes (DEGs) of m6A methylase in T2D were analyzed from 12 datasets in Gene Expression Omnibus (GEO). The associations between m6A level and T2D were explored in four electronic databases, including PubMed, EmBase, Web of Science and CNKI. Standard mean difference (SMD) and 95 % confidence interval (95 %CI) was calculated to assess the total effect in integrative analysis. Differential expression genes detected in at least three of six tissues were ZC3H13, YTHDC1/2, and IGF2BP2. LRPPRC were differentially expressed in five tissues except in arterial tissue. A total of 6 studies were included for integrative analysis. The mean m6A levels were significantly lower in T2D than those in normal controls (SMD = -1.35, 95 %CI: -2.58 to -0.11). This systematic review and integrative analysis summarize the previous studies on the association between m6A modification and T2D and the possible role of m6A modification in the progression of T2D, such as abnormal blood glucose, abnormal pancreatic β-cell function, insulin resistance, and abnormal lipid metabolism. The integrative analysis showed that decreased level of m6A was associated with T2D. These findings provide new targets for early detection and treatment for T2D.
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Affiliation(s)
- Yan-Ling Li
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing, China; Municipal Key Laboratory of Clinical Epidemiology, Beijing, China.
| | - Yu Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing, China; Municipal Key Laboratory of Clinical Epidemiology, Beijing, China.
| | - Ning Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing, China; Municipal Key Laboratory of Clinical Epidemiology, Beijing, China.
| | - Yu-Xiang Yan
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing, China; Municipal Key Laboratory of Clinical Epidemiology, Beijing, China.
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6
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Ren Y, Li Z, Li J, Liang R, Wang Z, Bai Y, Yang Y, Tang Q, Fu Y, Zhang X, Zhang Y, Yu Y, Xiong Y. m 6 A mRNA methylation: Biological features, mechanisms, and therapeutic potentials in type 2 diabetes mellitus. Obes Rev 2023; 24:e13639. [PMID: 37732463 DOI: 10.1111/obr.13639] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/10/2023] [Accepted: 08/27/2023] [Indexed: 09/22/2023]
Abstract
As the most common internal post-transcriptional RNA modification in eukaryotic cells, N6-methyladenosine (m6 A) performs a dynamic and reversible role in a variety of biological processes mediated by methyltransferases (writers), demethylases (erasers), and m6 A binding proteins (readers). M6 A methylation enables transcriptome conversion in different signals that regulate various physiological activities and organ development. Over the past few years, emerging studies have identified that mRNA m6 A regulators defect in β-cell leads to abnormal regulation of the target mRNAs, thereby resulting in β-cell dysfunction and loss of β-cell identity and mass, which are strongly associated with type 2 diabetes mellitus (T2DM) pathogenesis. Also, mRNA m6 A modification has been implicated with insulin resistance in muscles, fat, and liver cells/tissues. In this review, we elaborate on the biological features of m6 A methylation; provide a comprehensive overview of the underlying mechanisms that how it controls β-cell function, identity, and mass as well as insulin resistance; highlight its connections to glucose metabolism and lipid metabolism linking to T2DM; and further discuss its role in diabetes complications and its therapeutic potentials for T2DM diagnosis and treatment.
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Affiliation(s)
- Yuanyuan Ren
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Zi Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Jiaoyu Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Rui Liang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Zhen Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Yiduo Bai
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Yafang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Qian Tang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Yaolei Fu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Xiaobo Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Yu Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Yi Yu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
- School of Medicine, Northwest University, Xi'an, Shaanxi, China
| | - Yuyan Xiong
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
- School of Medicine, Northwest University, Xi'an, Shaanxi, China
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7
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Zhang Q, Deng K, Liu M, Yang S, Xu W, Feng T, Jie M, Liu Z, Sheng X, Chen H, Jiang H. Phase separation of BuGZ regulates gut regeneration and aging through interaction with m 6A regulators. Nat Commun 2023; 14:6700. [PMID: 37872148 PMCID: PMC10593810 DOI: 10.1038/s41467-023-42474-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 10/11/2023] [Indexed: 10/25/2023] Open
Abstract
Exploring the role of phase separation in intracellular compartment formation is an active area of research. However, the associations of phase separation with intestinal stem cell (ISC)-dependent regeneration and aging remain unclear. Here, we demonstrate that BuGZ, a coacervating mitotic effector, shows age- and injury-associated condensation in Drosophila ISC nuclei during interphase. BuGZ condensation promotes ISC proliferation, affecting Drosophila gut repair and longevity. Moreover, m6A reader YT521-B acts as the transcriptional and functional downstream of BuGZ. The binding of YT521-B promotor or m6A writer Ime4/ Mettl14 to BuGZ controls its coacervation, indicating that the promotor may accelerate the phase transition of its binding transcription factor. Hence, we propose that phase separation and m6A regulators may be critical for ameliorating ISC-dependent gut regeneration and aging and requires further study.
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Grants
- National Natural Science Foundation of China(31771505); National Key Basic Research Program of China (2018YFA0108302); National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University (Z20201009, Z20191011,Z2023YY003); 1.3.5 project for disciplines of excellence, West China Hospital, Sichuan University (ZYYC20001,ZYGD20010) ; Sichuan Science and Technology Program, the Central Government Guides Local Science and Technology Development Projects, China (Grant No. 2022ZYD0078); Sichuan Science and Technology Program (Grant No. 2023YFQ0008); Project of Max Cynader Academy of Brain Workstation, WCHSCU (HXYS19005).science and technology department of Tibet, the central government guides the local science and technology development fund project (XZ202102YD0026C)
- National Natural Science Foundation of China (National Science Foundation of China)
- National Key Basic Research Program of China (2020YFA0803602); National Key Basic Research Program of China (2018YFA0108301); National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University (Z20201006);1.3.5 project for disciplines of excellence, West China Hospital, Sichuan University (ZYYC20024)
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Affiliation(s)
- Qiaoqiao Zhang
- Laboratory for Aging and Cancer Research, Frontiers Science Center Disease-related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
- Laboratory of Metabolism and Aging Research, Frontiers Science Center Disease-related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, 510275, Guangzhou, Guangdong, China
| | - Kai Deng
- Department of Gastroenterology & Hepatology, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
- Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Mengyou Liu
- Laboratory for Aging and Cancer Research, Frontiers Science Center Disease-related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
| | - Shengye Yang
- Laboratory for Aging and Cancer Research, Frontiers Science Center Disease-related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
| | - Wei Xu
- Laboratory for Aging and Cancer Research, Frontiers Science Center Disease-related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
| | - Tong Feng
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, 510275, Guangzhou, Guangdong, China
| | - Minwen Jie
- Laboratory for Aging and Cancer Research, Frontiers Science Center Disease-related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
| | - Zhiming Liu
- Laboratory of Metabolism and Aging Research, Frontiers Science Center Disease-related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
| | - Xiao Sheng
- Laboratory of Metabolism and Aging Research, Frontiers Science Center Disease-related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
| | - Haiyang Chen
- Laboratory of Metabolism and Aging Research, Frontiers Science Center Disease-related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China.
| | - Hao Jiang
- Laboratory for Aging and Cancer Research, Frontiers Science Center Disease-related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China.
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8
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Chen J, Deng LL, Xiao XL, Long SY, Deng Y, Peng T, Xie J, Zhang XY. An Association between Decreased Small Intestinal RNA Modification and Disturbed Glucagon-like Peptide-1 Secretion under High-Fat Diet Stress. Nutrients 2023; 15:3707. [PMID: 37686740 PMCID: PMC10490556 DOI: 10.3390/nu15173707] [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: 07/24/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023] Open
Abstract
Unhealthy diets rich in fats and/or sugar are considered as the major external cause of the obesity epidemic, which is often accompanied by a significant decrease in gut hormone glucagon-like peptide-1 (GLP1) levels. Numerous studies have demonstrated notable contributions of the gut microbiota in this process. Nevertheless, the underlying mechanism still needs further investigation. The role of epigenetic modifications in gene expression and metabolism has been well demonstrated, with m6A methylation on RNAs being the most prevalent modification throughout their metabolism. In the present study, we found that the expressions of small intestinal Gcg and Pc3, two key genes regulating GLP1 expression, were significantly downregulated in obese mice, associated with reduced GLP1 level. Immunohistochemistry analysis indicated that a high-fat diet slightly increased the density of enteroendocrine L cells in the small intestine, implying that decreased GLP1 levels were not caused by the changes in L cell intensity. Instead, the small intestinal m6A level as well as the expression of known "writers", mettl3/14 and wtap, were found to be positively correlated with the expression of Gcg and Pc3. Fecal microbiota transplantation with feces from normal and obese mice daily to antibiotic-treated mice revealed that dysbiosis in diet-induced obesity was sufficient to reduce serum GLP1, small intestinal m6A level, and intestinal expressions of Gcg, Pc3, and writer genes (mettl3/14, wtap). However, as the most direct and universal methyl donor, the production of fecal S-adenosylmethionine was neither affected by the different dietary patterns nor their shaped microbiota. These results suggested that microbial modulation of the epitranscriptome may be involved in regulating GLP1 expression, and highlighted epitranscriptomic modifications as an additional level of interaction between diet and individual health.
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Affiliation(s)
- Jiang Chen
- College of Life Sciences, Sichuan Normal University, Chengdu 610101, China; (J.C.)
- College of Life Sciences, Sichuan University, Chengdu 610065, China;
| | - Lin-Ling Deng
- College of Life Sciences, Sichuan Normal University, Chengdu 610101, China; (J.C.)
| | - Xing-Lin Xiao
- College of Life Sciences, Sichuan Normal University, Chengdu 610101, China; (J.C.)
| | - Shi-Yuan Long
- College of Life Sciences, Sichuan Normal University, Chengdu 610101, China; (J.C.)
| | - Yuan Deng
- College of Life Sciences, Sichuan Normal University, Chengdu 610101, China; (J.C.)
| | - Tong Peng
- College of Life Sciences, Sichuan University, Chengdu 610065, China;
- Keystonecare Technology (Chengdu) Co., Ltd., No.200 Tianfu 5th Street, Chengdu 610094, China
| | - Jie Xie
- College of Life Sciences, Sichuan Normal University, Chengdu 610101, China; (J.C.)
| | - Xiao-Yu Zhang
- College of Life Sciences, Sichuan Normal University, Chengdu 610101, China; (J.C.)
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9
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Ghafouri-Fard S, Shoorei H, Hussen BM, Dong P, Zhai T, Taheri M, Samadian M. The significance of N6-methyladenosine-modified non-coding RNAs in different disorders. Eur J Pharmacol 2023; 946:175644. [PMID: 36921707 DOI: 10.1016/j.ejphar.2023.175644] [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: 12/26/2022] [Revised: 02/27/2023] [Accepted: 03/06/2023] [Indexed: 03/16/2023]
Abstract
N6-methyladenosine (m6A) is the most widespread endogenous modification affecting the expression of eukaryotic mRNA transcripts. Recent studies have shown that the m6A marks within non-coding RNAs can affect their functions and expression in a manner similar to that of mRNA-coding genes. Since non-coding RNAs are involved in the pathophysiology of several disorders, identification of the role of m6A marks in the regulation of expression of non-coding RNAs can open a new era for identifying underlying mechanisms of several disorders and designing novel therapeutic modalities for a variety of disorders, particularly cancers. Moreover, a number of non-coding RNAs can affect m6A levels. In the current review, we discuss the impacts of m6A marks on the expression of non-coding RNAs in the context of different disorders, such as bone, gastrointestinal, neurologic, renal, pulmonary, hepatic and other disorders.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Shoorei
- Department of Anatomical Sciences, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran; Clinical Research Development Unit of Tabriz Valiasr Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Kurdistan Region, Erbil, Iraq
| | - Peixin Dong
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, Japan
| | - Tianyue Zhai
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, Japan
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany; Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad Samadian
- Department of Neurosurgery, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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10
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Fang J, Wu X, He J, Zhang H, Chen X, Zhang H, Novakovic B, Qi H, Yu X. RBM15 suppresses hepatic insulin sensitivity of offspring of gestational diabetes mellitus mice via m6A-mediated regulation of CLDN4. Mol Med 2023; 29:23. [PMID: 36803098 PMCID: PMC9942341 DOI: 10.1186/s10020-023-00615-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 01/29/2023] [Indexed: 02/22/2023] Open
Abstract
BACKGROUND Gestational diabetes Mellitus (GDM) is a common pregnancy-specific disease with high morbidity, which is linked to a high risk of obesity and diabetes in offspring. N6-methyladenosine modification of RNA is emerging as an important epigenetic mechanism that is widely manifested in many diseases. This study aimed to investigate the mechanism of m6A methylation in metabolic syndrome in offspring result from intrauterine hyperglycemia. METHODS GDM mice were established by feeding a high-fat diet 1 weeks before pregnancy. The m6A RNA methylation quantification kit was used to detect liver tissue methylation levels. PCR array was used to determine the expression of the m6A methylation modification enzyme. Immunohistochemistry, qRT-PCR, and western blot were used to examine the expression of RBM15, METTL13, IGF2BP1, and IGF2BP2. Subsequently, methylated RNA immunoprecipitation sequencing combined with mRNA sequencing, followed by dot blot and glucose uptake tests, were performed. RESULTS In this study, we found that offspring from a GDM mother were more vulnerable to glucose intolerance and insulin resistance. GC-MS revealed significant metabolic changes including saturated fatty acids and unsaturated fatty acids in liver of GDM offspring. We also demonstrated that global mRNA m6A methylation level was significantly increased in the fetal liver of GDM mice, indicating epigenetic change may have a strong relationship with the mechanism of metabolism syndrome. Concordantly, RBM15, the RNA binding methyltransferase, was upregulated in the liver. In vitro, RBM15 suppressed insulin sensitivity and increased insulin resistance through m6A-regulated epigenetic inhabitation of CLDN4. Moreover, MeRIP-sequencing and mRNA-sequencing revealed that differently regulated genes with differential m6A peaks were enriched in metabolic pathways. CONCLUSION Our study revealed the essential role of RBM15 in insulin resistance and the effect of RBM15-regulated m6A modification in the metabolic syndrome of offspring of GDM mice.
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Affiliation(s)
- Jie Fang
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Xiafei Wu
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Jie He
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Hanwen Zhang
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Xuyang Chen
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Hua Zhang
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Boris Novakovic
- Department of Paediatrics, University of Melbourne, Royal Children's Hospital, Parkville, VIC, Australia
| | - Hongbo Qi
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China. .,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China. .,Chongqing Health Center for Women and Children, Chongqing, 401120, China.
| | - Xinyang Yu
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China. .,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China.
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11
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Zhang L, Xia J. N6-Methyladenosine Methylation of mRNA in Cell Senescence. Cell Mol Neurobiol 2023; 43:27-36. [PMID: 34767142 DOI: 10.1007/s10571-021-01168-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/03/2021] [Indexed: 01/07/2023]
Abstract
Cell senescence is the growth arrest caused by the accumulation of irreparable cell damage, which is involved in physiological and pathological processes and regulated by the post-transcriptional level. This regulation is performed by transcriptional regulators and driven by aging-related small RNAs, long non-coding RNAs, and RNA-binding proteins. N6-methyladenosine (m6A) is the most common chemical modification in eukaryotic mRNA, which can enhance or reduce the binding of transcriptional regulators. Increasing studies have confirmed the crucial role of m6A in controlling mRNA in various physiological processes. Remarkably, recent reports have indicated that abnormal methylation of m6A-related RNA may affect cell senescence. In this review, we clarified the association between m6A modification and cell senescence and analyzed the limitations of the current research.
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Affiliation(s)
- Lin Zhang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China
| | - Jian Xia
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China. .,Clinical Research Center for Cerebrovascular Disease of Hunan Province, Central South University, Changsha, Hunan, China. .,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.
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12
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Zhang M, Liu J, Yu C, Tang S, Jiang G, Zhang J, Zhang H, Xu J, Xu W. Berberine Regulation of Cellular Oxidative Stress, Apoptosis and Autophagy by Modulation of m 6A mRNA Methylation through Targeting the Camk1db/ERK Pathway in Zebrafish-Hepatocytes. Antioxidants (Basel) 2022; 11:antiox11122370. [PMID: 36552577 PMCID: PMC9774189 DOI: 10.3390/antiox11122370] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022] Open
Abstract
Berberine (BBR) ameliorates cellular oxidative stress, apoptosis and autophagy induced by lipid metabolism disorder, however, the molecular mechanism associated with it is not well known. To study the mechanism, we started with m6A methylation modification to investigate its role in lipid deposition zebrafish hepatocytes (ZFL). The results showed that BBR could change the cellular m6A RNA methylation level, increase m6A levels of Camk1db gene transcript and alter Camk1db gene mRNA expression. Via knockdown of the Camk1db gene, Camk1db could promote cellular ERK phosphorylation levels. Berberine regulated the expression level of Camk1db mRNA by altering the M6A RNA methylation of the Camk1db gene, which further affected the synthesis of calmodulin-dependent protein kinase and activated ERK signaling pathway resulting in changes in downstream physiological indicators including ROS production, cell proliferation, apoptosis and autophagy. In conclusion, berberine could regulate cellular oxidative stress, apoptosis and autophagy by mediating Camk1db m6A methylation through the targeting of the Camk1db/ERK pathway in zebrafish-hepatocyte.
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Affiliation(s)
- Meijuan Zhang
- Shanghai Key Laboratory for Veterinary and Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, No. 800 Jiangchuan Road, Shanghai 200240, China
| | - Jin Liu
- Shanghai Key Laboratory for Veterinary and Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, No. 800 Jiangchuan Road, Shanghai 200240, China
| | - Chengbing Yu
- Shanghai Key Laboratory for Veterinary and Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, No. 800 Jiangchuan Road, Shanghai 200240, China
| | - Shangshang Tang
- Shanghai Key Laboratory for Veterinary and Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, No. 800 Jiangchuan Road, Shanghai 200240, China
| | - Guangzhen Jiang
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, College of Animal Science and Technology, Nanjing Agricultural University, No. 1 Weigang Road, Nanjing 210095, China
| | - Jing Zhang
- Shanghai Key Laboratory for Veterinary and Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, No. 800 Jiangchuan Road, Shanghai 200240, China
| | - Hongcai Zhang
- Shanghai Key Laboratory for Veterinary and Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, No. 800 Jiangchuan Road, Shanghai 200240, China
| | - Jianxiong Xu
- Shanghai Key Laboratory for Veterinary and Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, No. 800 Jiangchuan Road, Shanghai 200240, China
| | - Weina Xu
- Shanghai Key Laboratory for Veterinary and Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, No. 800 Jiangchuan Road, Shanghai 200240, China
- Correspondence:
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13
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Zhang D, Wornow S, Peehl DM, Rankin EB, Brooks JD. The controversial role and therapeutic development of the m6A demethylase FTO in renal cell carcinoma. Transl Oncol 2022; 25:101518. [PMID: 36037557 PMCID: PMC9440419 DOI: 10.1016/j.tranon.2022.101518] [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] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 08/09/2022] [Indexed: 11/22/2022] Open
Abstract
Fat mass and obesity-associated (FTO) protein, the first m6A demethylase identified in 2011, regulates multiple aspects of RNA biology including splicing, localization, stability, and translation. Accumulating data show that FTO is involved in numerous physiological processes and is implicated in multiple cancers including renal cell carcinoma (RCC). However, the exact role of FTO in RCC remains controversial. Some studies demonstrated that decreased FTO expression was associated with aggressive clinical features and shorter overall survival in clear cell RCC (ccRCC) patients, while others found that FTO inhibition selectively reduced the growth and survival of VHL-deficient ccRCC cells in vitro and in vivo. Here, we review the evidence supporting either a promoting or suppressive role of FTO in kidney cancers, the mechanisms of action of FTO, and recent progress in developing FTO inhibitors.
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Affiliation(s)
- Dalin Zhang
- Department of Urology, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Sarah Wornow
- Undergraduate Student Program, Brown University, Providence, RI, USA
| | - Donna M Peehl
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - Erinn B Rankin
- Department of Radiation Oncology, School of Medicine, Stanford University, Stanford, CA, USA
| | - James D Brooks
- Department of Urology, School of Medicine, Stanford University, Stanford, CA 94305, USA.
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14
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Effects of Moderate-Intensity Continuous Training and High-Intensity Interval Training on Testicular Oxidative Stress, Apoptosis and m6A Methylation in Obese Male Mice. Antioxidants (Basel) 2022; 11:antiox11101874. [PMID: 36290597 PMCID: PMC9598593 DOI: 10.3390/antiox11101874] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 09/14/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
Exercise is an effective way to improve reproductive function in obese males. Oxidative stress and apoptosis are important pathological factors of obesity-related male infertility. Accumulating studies have demonstrated that N6-methyladenosine (m6A) methylation is associated with obesity and testicular reproductive function. Our study aimed to investigate and compare the effect of 8 weeks of moderate-intensity continuous training (MICT) and high-intensity interval training (HIIT) on testicular oxidative stress, apoptosis and m6A methylation in obese male mice. Male C57BL/6 mice were randomly allocated into the four groups: normal diet (ND) group, high-fat diet (HFD) group, high-fat diet with moderate-intensity continuous training (HFD-MICT) group and high-fat diet with high-intensity interval training (HFD-HIIT) group. Mice in the HFD-MICT and HFD-HIIT groups were subjected to 8 weeks of MICT or HIIT treadmill protocols after 12 weeks of HFD feeding. We found that MICT and HIIT increased the protein expression of Nrf2, HO-1 and NQO-1 in the testes of obese mice, and HIIT increased it more than MICT. The Bax/Bcl-2 ratio, Cleaved Caspase-3 protein expression and TUNEL-positive cells were consistently up-regulated in the testes of obese mice, but MICT and HIIT restrained these HFD-induced effects. In addition, HFDs increased m6A levels and the gene expression of METTL3, YTHDF2 and FTO in the testes, but these effects were reversed by MICT and HIIT. However, HIIT was more effective than MICT in reducing m6A methylation in the testes of obese mice. These results demonstrate that both MICT and HIIT protected against HFD-induced oxidative stress, apoptosis and m6A methylation in testicular tissues; as a result, testicular morphological and functional impairment improved. In particular, HIIT was more beneficial than MICT in increasing the mRNA expression of steroidogenic enzymes and testicular antioxidant capacity and decreasing m6A methylation in the testes of HFD-fed mice.
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15
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Gebeyew K, Yang C, Mi H, Cheng Y, Zhang T, Hu F, Yan Q, He Z, Tang S, Tan Z. Lipid metabolism and m 6A RNA methylation are altered in lambs supplemented rumen-protected methionine and lysine in a low-protein diet. J Anim Sci Biotechnol 2022; 13:85. [PMID: 35821163 PMCID: PMC9277831 DOI: 10.1186/s40104-022-00733-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 05/15/2022] [Indexed: 01/19/2023] Open
Abstract
Background Methionine or lysine has been reported to influence DNA methylation and fat metabolism, but their combined effects in N6-methyl-adenosine (m6A) RNA methylation remain unclarified. The combined effects of rumen-protected methionine and lysine (RML) in a low-protein (LP) diet on lipid metabolism, m6A RNA methylation, and fatty acid (FA) profiles in the liver and muscle of lambs were investigated. Sixty-three male lambs were divided into three treatment groups, three pens per group and seven lambs per pen. The lambs were fed a 14.5% crude protein (CP) diet (adequate protein [NP]), 12.5% CP diet (LP), and a LP diet plus RML (LP + RML) for 60 d. Results The results showed that the addition of RML in a LP diet tended to lower the concentrations of plasma leptin (P = 0.07), triglyceride (P = 0.05), and non-esterified FA (P = 0.08). Feeding a LP diet increased the enzyme activity or mRNA expression of lipogenic enzymes and decreased lipolytic enzymes compared with the NP diet. This effect was reversed by supplementation of RML with a LP diet. The inclusion of RML in a LP diet affected the polyunsaturated fatty acids (PUFA), n-3 PUFA, and n-6 PUFA in the liver but not in the muscle, which might be linked with altered expression of FA desaturase-1 (FADS1) and acetyl-CoA carboxylase (ACC). A LP diet supplemented with RML increased (P < 0.05) total m6A levels in the liver and muscle and were accompanied by decreased expression of fat mass and obesity-associated protein (FTO) and alkB homologue 5 (ALKBH5). The mRNA expressions of methyltransferase-like 3 (METTL3) and methyltransferase-like 14 (METTL14) in the LP + RML diet group were lower than those in the other two groups. Supplementation of RML with a LP diet affected only liver YTH domain family (YTHDF2) proteins (P < 0.05) and muscle YTHDF3 (P = 0.09), which can be explained by limited m6A-binding proteins that were mediated in mRNA fate. Conclusions Our findings showed that the inclusion of RML in a LP diet could alter fat deposition through modulations of lipogenesis and lipolysis in the liver and muscle. These changes in fat metabolism may be associated with the modification of m6A RNA methylation. Graphical abstract A systematic graph illustrates the mechanism of dietary methionine and lysine influence on lipid metabolism and M6A. The green arrow with triangular heads indicates as activation and brown-wine arrows with flat heads indicates as suppression.
![]() Supplementary Information The online version contains supplementary material available at 10.1186/s40104-022-00733-z.
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Affiliation(s)
- Kefyalew Gebeyew
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, 410125, Hunan, China.,University of Chinese Academy of Science, Beijing, 100049, China
| | - Chao Yang
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, 410125, Hunan, China.,University of Chinese Academy of Science, Beijing, 100049, China
| | - Hui Mi
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, 410125, Hunan, China.,University of Chinese Academy of Science, Beijing, 100049, China
| | - Yan Cheng
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, 410125, Hunan, China.,University of Chinese Academy of Science, Beijing, 100049, China
| | - Tianxi Zhang
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, 410125, Hunan, China.,University of Chinese Academy of Science, Beijing, 100049, China
| | - Fan Hu
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, 410125, Hunan, China.,University of Chinese Academy of Science, Beijing, 100049, China
| | - Qiongxian Yan
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, 410125, Hunan, China.,University of Chinese Academy of Science, Beijing, 100049, China
| | - Zhixiong He
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, 410125, Hunan, China.,University of Chinese Academy of Science, Beijing, 100049, China.,Hunan Co-Innovation Center of Animal Production Safety, CICAPS, Changsha, 410128, Hunan, China
| | - Shaoxun Tang
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, 410125, Hunan, China. .,University of Chinese Academy of Science, Beijing, 100049, China.
| | - Zhiliang Tan
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, 410125, Hunan, China.,University of Chinese Academy of Science, Beijing, 100049, China.,Hunan Co-Innovation Center of Animal Production Safety, CICAPS, Changsha, 410128, Hunan, China
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16
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Intermittent Fasting Improves High-Fat Diet-Induced Obesity Cardiomyopathy via Alleviating Lipid Deposition and Apoptosis and Decreasing m6A Methylation in the Heart. Nutrients 2022; 14:nu14020251. [PMID: 35057432 PMCID: PMC8781965 DOI: 10.3390/nu14020251] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/02/2022] [Accepted: 01/04/2022] [Indexed: 01/27/2023] Open
Abstract
Intermittent fasting (IF) plays an essential role in improving lipid metabolism disorders caused by metabolic cardiomyopathy. Growing evidence revealed that N6-methyladenosine (m6A) RNA methylation is related to obesity and lipid metabolic. Our study aimed to assess the beneficial effects of IF on lipid deposition, apoptosis, and m6A methylation in high-fat diet (HFD)-induced obesity cardiomyopathy. Male C57BL/6J mice were fed a normal diet (ND) or HFD ad libitum for 13 weeks, after which time a subgroup of HFD mice were subjected to IF for 24 h and fed HFD in the other day for 8 weeks. We found that IF intervention significantly improved cardiac functional and structural impairment and serum lipid metabolic disorder induced by HFD. Furthermore, IF intervention decreased the mRNA levels of the fatty acid uptake genes of FABP1, FATP1, and CD36 and the fatty acid synthesis genes of SREBF1, FAS, and ACCα and increased the mRNA levels of the fatty acid catabolism genes of ATGL, HSL, LAL, and LPL in cardiac tissueof HFD-induced obese mice. TUNEL-positive cells, Bax/Bcl-2 ratio, and Cleaved Caspase-3 protein expression in HFD-induced obese mice hearts was down-regulated by IF intervention. In addition, IF intervention decreased the m6A methylation levels and METTL3 expression and increased FTO expression in HFD-induced obesity cardiomyopathy. In conclusion, our findings demonstrate that IF attenuated cardiac lipid deposition and apoptosis, as well as improved cardiac functional and structural impairment in HFD-induced obesity cardiomyopathy, by a mechanism associated with decreased m6A RNA methylation levels.
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