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Sun X, Meng X, Piao Y, Dong S, Dong Q. METTL3 promotes the osteogenic differentiation of human periodontal ligament cells by increasing YAP activity via IGF2BP1 and YTHDF1-mediated m 6A modification. J Periodontal Res 2024. [PMID: 38838034 DOI: 10.1111/jre.13297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 04/30/2024] [Accepted: 05/12/2024] [Indexed: 06/07/2024]
Abstract
AIMS N6-Methyladenosine (m6A) has been confirmed to play a dynamic role in osteoporosis and bone metabolism. However, whether m6A is involved in the osteogenic differentiation of human periodontal ligament cells (hPDLCs) remains unclear. The present study aimed to verify the role of methyltransferase-like 3 (METTL3)-mediated m6A modification in the osteogenic differentiation of hPDLCs. METHODS The METTL3, Runx2, Osx, and YAP mRNA expression was determined by qPCR. METTL3, RUNX2, OSX, YTHDF1, YAP, IGF2BP1, and eIF3a protein expression was measured by Western blotting and immunofluorescence assays. The levels of m6A modification were evaluated by methylated RNA immunoprecipitation (MeRIP) and dot blot analyses. MeRIP-seq and RNA-seq were used to screen potential candidate genes. Nucleic acid and protein interactions were detected by immunoprecipitation. Alizarin red staining was used to evaluate the osteogenic differentiation of hPDLCs. Gene transcription and promoter activities were assessed by luciferase reporter assays (n ≥ 3). RESULTS The expression of METTL3 and m6A modifications increased synchronously with the osteogenic differentiation of hPDLCs (p = .0016). YAP was a candidate gene identified by MeRIP-seq and RNA-seq, and its mRNA and protein expression levels were simultaneously increased. METTL3 increased the m6A methylated IGF2BP1-mediated stability of YAP mRNA (p = .0037), which in turn promoted osteogenic differentiation (p = .0147). Furthermore, METTL3 increased the translation efficiency of YAP by recruiting YTHDF1 and eIF3a to the translation initiation complex (p = .0154), thereby promoting the osteogenic differentiation of hPDLCs (p = .0012). CONCLUSION Our study revealed that METTL3-initiated m6A mRNA methylation promotes osteogenic differentiation of hPDLCs by increasing IGF2BP1-mediated YAP mRNA stability and recruiting YTHDF1 and eIF3a to the translation initiation complex to increase YAP mRNA translation. Our findings reveal the mechanism of METTL3-mediated m6A modification during hPDLC osteogenesis, providing a potential therapeutic target for periodontitis and alveolar bone defects.
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Affiliation(s)
- Xuefei Sun
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, Department of Endodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Xiujiao Meng
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, Department of Endodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Yu Piao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, Department of Endodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Shaojie Dong
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, Department of Endodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Qianqian Dong
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, Department of Endodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
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Saluja S, Bansal I, Bhardwaj R, Beg MS, Palanichamy JK. Inflammation as a driver of hematological malignancies. Front Oncol 2024; 14:1347402. [PMID: 38571491 PMCID: PMC10987768 DOI: 10.3389/fonc.2024.1347402] [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: 12/01/2023] [Accepted: 03/05/2024] [Indexed: 04/05/2024] Open
Abstract
Hematopoiesis is a tightly regulated process that produces all adult blood cells and immune cells from multipotent hematopoietic stem cells (HSCs). HSCs usually remain quiescent, and in the presence of external stimuli like infection or inflammation, they undergo division and differentiation as a compensatory mechanism. Normal hematopoiesis is impacted by systemic inflammation, which causes HSCs to transition from quiescence to emergency myelopoiesis. At the molecular level, inflammatory cytokine signaling molecules such as tumor necrosis factor (TNF), interferons, interleukins, and toll-like receptors can all cause HSCs to multiply directly. These cytokines actively encourage HSC activation, proliferation, and differentiation during inflammation, which results in the generation and activation of immune cells required to combat acute injury. The bone marrow niche provides numerous soluble and stromal cell signals, which are essential for maintaining normal homeostasis and output of the bone marrow cells. Inflammatory signals also impact this bone marrow microenvironment called the HSC niche to regulate the inflammatory-induced hematopoiesis. Continuous pro-inflammatory cytokine and chemokine activation can have detrimental effects on the hematopoietic system, which can lead to cancer development, HSC depletion, and bone marrow failure. Reactive oxygen species (ROS), which damage DNA and ultimately lead to the transformation of HSCs into cancerous cells, are produced due to chronic inflammation. The biological elements of the HSC niche produce pro-inflammatory cytokines that cause clonal growth and the development of leukemic stem cells (LSCs) in hematological malignancies. The processes underlying how inflammation affects hematological malignancies are still not fully understood. In this review, we emphasize the effects of inflammation on normal hematopoiesis, the part it plays in the development and progression of hematological malignancies, and potential therapeutic applications for targeting these pathways for therapy in hematological malignancies.
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Han F. N6-methyladenosine modification in ischemic stroke: Functions, regulation, and therapeutic potential. Heliyon 2024; 10:e25192. [PMID: 38317953 PMCID: PMC10840115 DOI: 10.1016/j.heliyon.2024.e25192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 12/09/2023] [Accepted: 01/22/2024] [Indexed: 02/07/2024] Open
Abstract
N6-methyladenosine (m6A) modification is the most frequently occurring internal modification in eukaryotic RNAs. By modulating various aspects of the RNA life cycle, it has been implicated in a wide range of pathological and physiological processes associated with human diseases. Ischemic stroke is a major cause of death and disability worldwide with few treatment options and a narrow therapeutic window, and accumulating evidence has indicated the involvement of m6A modifications in the development and progression of this type of stroke. In this review, which provides insights for the prevention and clinical treatment of stroke, we present an overview of the roles played by m6A modification in ischemic stroke from three main perspectives: (1) the association of m6A modification with established risk factors for stroke, including hypertension, diabetes mellitus, hyperlipidemia, obesity, and heart disease; (2) the roles of m6A modification regulators and their functional regulation in the pathophysiological injury mechanisms of stroke, namely oxidative stress, mitochondrial dysfunction, endothelial dysfunction, neuroinflammation, and cell death processes; and (3) the diagnostic and therapeutic potential of m6A regulators in the treatment of stroke.
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Affiliation(s)
- Fei Han
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
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4
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Yang ZJ, Huang SY, Zhong KY, Huang WG, Huang ZH, He TT, Yang MT, Wusiman M, Zhou DD, Chen S, Huang BX, Luo XL, Li HB, Zhu HL. Betaine alleviates cognitive impairment induced by homocysteine through attenuating NLRP3-mediated microglial pyroptosis in an m 6A-YTHDF2-dependent manner. Redox Biol 2024; 69:103026. [PMID: 38184996 PMCID: PMC10808937 DOI: 10.1016/j.redox.2024.103026] [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: 12/04/2023] [Revised: 12/25/2023] [Accepted: 01/01/2024] [Indexed: 01/09/2024] Open
Abstract
Dementia, with homocysteine (Hcy) as an important risk factor, is a severe public health problem in the aging society. Betaine serves as a methyl donor and plays an important role in reducing Hcy. However, the effects and mechanisms of betaine on Hcy-induced cognitive impairment remain unclear. Firstly, SD rats were injected with Hcy (400 μg/kg) through vena caudalis, and betaine (2.5 % w/v) was supplemented via drinking water for 14 days. Betaine supplementation could attenuate Hcy-induced cognitive impairment in the Y maze and novel object recognition tests by repairing brain injury. Meanwhile, microglial activation was observed to be inhibited by betaine supplementation using immunofluorescence and sholl analysis. Secondly, HMC3 cells were treated with betaine, which was found to decrease the ROS level, ameliorate cell membrane rupture, reduce the release of LDH, IL-18 and IL-1β, and attenuate the damage of microglia to neurons. Mechanistically, betaine alleviates cognitive impairment by inhibiting microglial pyroptosis via reducing the expressions of NLRP3, ASC, pro-caspase-1, cleaved-caspase-1, GSDMD, GSDMD-N, IL-18 and IL-1β. Betaine treatment can increase SAM/SAH ratio, confirming its enhancement on methylation capacity. Furthermore, betaine treatment was found to enhance N6-methyladenosine (m6A) modification of NLRP3 mRNA, and reduced the NLRP3 mRNA stability through increasing the expression of the m6A reader YTH N6-methyladenosine RNA binding protein 2 (YTHDF2). Finally, silencing YTHDF2 could reverse the inhibitory effect of betaine on pyroptosis. Our data demonstrated that betaine attenuated Hcy-induced cognitive impairment by suppressing microglia pyroptosis via inhibiting the NLRP3/caspase-1/GSDMD pathway in an m6A-YTHDF2-dependent manner.
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Affiliation(s)
- Zhi-Jun Yang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Si-Yu Huang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Kai-Yi Zhong
- Department of Neurology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Wen-Ge Huang
- Center of Experimental Animals, Sun Yat-sen University, Guangzhou, 510080, China
| | - Zi-Hui Huang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Tong-Tong He
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Meng-Tao Yang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Maierhaba Wusiman
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Dan-Dan Zhou
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Si Chen
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Bi-Xia Huang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Xiao-Lin Luo
- Experimental and Teaching Center for Public Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Hui-Lian Zhu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China.
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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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Wang W, Wang H, Sun T. N 6-methyladenosine modification: Regulatory mechanisms and therapeutic potential in sepsis. Biomed Pharmacother 2023; 168:115719. [PMID: 37839108 DOI: 10.1016/j.biopha.2023.115719] [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: 09/01/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/17/2023] Open
Abstract
Sepsis is a life-threatening organ dysfunction caused by a dysregulated host response to infection and is characterized by multiple biological and clinical features. N6-methyladenosine (m6A) modification is the most common type of RNA modifications in eukaryotes and plays an important regulatory role in various biological processes. Recently, m6A modification has been found to be involved in the regulation of immune responses in sepsis. In addition, several studies have shown that m6A modification is involved in sepsis-induced multiple organ dysfunctions, including cardiovascular dysfunction, acute lung injury (ALI), acute kidney injury (AKI) and etc. Considering the complex pathogenesis of sepsis and the lack of specific therapeutic drugs, m6A modification may be the important bond in the pathophysiological process of sepsis and even therapeutic targets. This review systematically highlights the recent advances regarding the roles of m6A modification in sepsis and sheds light on their use as treatment targets for sepsis.
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Affiliation(s)
- Wei Wang
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Huaili Wang
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Tongwen Sun
- General ICU, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Critical Care Medicine, Zhengzhou Key Laboratory of Sepsis, Henan Engineering Research Center for Critical Care Medicine, Zhengzhou, Henan, China.
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Teng Y, Yi J, Chen J, Yang L. N6-Methyladenosine (m6A) Modification in Natural Immune Cell-Mediated Inflammatory Diseases. J Innate Immun 2023; 15:804-821. [PMID: 37903470 PMCID: PMC10673353 DOI: 10.1159/000534162] [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: 04/27/2023] [Accepted: 09/13/2023] [Indexed: 11/01/2023] Open
Abstract
The post-transcriptional N6-methyladenosine (m6A) modification of RNA influences stability, transport, and translation with implications for various physiological and pathological processes. Immune cell development, differentiation, and activation are also thought to be regulated by m6A and affect host defense against pathogens and inflammatory response with impacts on infectious, neoplastic, autoimmune, cardiovascular, hepatic, and osteal diseases. The current review summarizes recent research on m6A in monocyte/macrophages, neutrophils, dendritic cells, natural killer cells, and microglia and gives insights into epigenetic modifications of the immune system and novel therapeutic strategies for immune-related diseases.
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Affiliation(s)
- Yan Teng
- Institute of Neurology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Jin Yi
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Junnian Chen
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Lu Yang
- Institute of Neurology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
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Xie L, Zhang X, Xie J, Xu Y, Li XJ, Lin L. Emerging Roles for DNA 6mA and RNA m6A Methylation in Mammalian Genome. Int J Mol Sci 2023; 24:13897. [PMID: 37762200 PMCID: PMC10531503 DOI: 10.3390/ijms241813897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 08/25/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Epigenetic methylation has been shown to play an important role in transcriptional regulation and disease pathogenesis. Recent advancements in detection techniques have identified DNA N6-methyldeoxyadenosine (6mA) and RNA N6-methyladenosine (m6A) as methylation modifications at the sixth position of adenine in DNA and RNA, respectively. While the distributions and functions of 6mA and m6A have been extensively studied in prokaryotes, their roles in the mammalian brain, where they are enriched, are still not fully understood. In this review, we provide a comprehensive summary of the current research progress on 6mA and m6A, as well as their associated writers, erasers, and readers at both DNA and RNA levels. Specifically, we focus on the potential roles of 6mA and m6A in the fundamental biological pathways of the mammalian genome and highlight the significant regulatory functions of 6mA in neurodegenerative diseases.
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Affiliation(s)
| | | | | | | | | | - Li Lin
- Guangdong Key Laboratory of Non-Human Primate Research, Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hongkong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou 510632, China; (L.X.); (X.Z.); (J.X.); (Y.X.); (X.-J.L.)
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Su X, Huang L, Li S, Ying J, Zhao F, Wang S, Liu Q, Qu Y, Mu D. The RNA m6A modification might participate in microglial activation during hypoxic-ischemic brain damage in neonatal mice. Hum Genomics 2023; 17:78. [PMID: 37626401 PMCID: PMC10463984 DOI: 10.1186/s40246-023-00527-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND The RNA m6A modification has been implicated in multiple neurological diseases as well as macrophage activation. However, whether it regulates microglial activation during hypoxic-ischemic brain damage (HIBD) in neonates remains unknown. Here, we aim to examine whether the m6A modification is involved in modulating microglial activation during HIBD. We employed an oxygen and glucose deprivation microglial model for in vitro studies and a neonatal mouse model of HIBD. The brain tissue was subjected to RNA-seq to screen for significant changes in the mRNA m6A regulator. Thereafter, we performed validation and bioinformatics analysis of the major m6A regulators. RESULTS RNA-seq analysis revealed that, among 141 m6A regulators, 31 exhibited significant differential expression (FC (abs) ≥ 2) in HIBD mice. We then subjected the major m6A regulators Mettl3, Mettl14, Fto, Alkbh5, Ythdf1, and Ythdf2 to further validation, and the results showed that all were significantly downregulated in vitro and in vivo. GO analysis reveals that regulators are mainly involved in the regulation of cellular and metabolic processes. The KEGG results indicate the involvement of the signal transduction pathway. CONCLUSIONS Our findings demonstrate that m6A modification of mRNA plays a crucial role in the regulation of microglial activation in HIBD, with m6A-associated regulators acting as key modulators of microglial activation.
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Affiliation(s)
- Xiaojuan Su
- Department of Pediatrics/Key Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Lingyi Huang
- Department of Pediatrics/Key Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), West China Second University Hospital, Sichuan University, Chengdu, 610041, China
- West China College of Stomatology/State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, 610041, China
| | - Shiping Li
- Department of Pediatrics/Key Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Junjie Ying
- Department of Pediatrics/Key Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Fengyan Zhao
- Department of Pediatrics/Key Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Shaopu Wang
- Department of Pediatrics/Key Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Qian Liu
- Department of Pediatrics/Key Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Yi Qu
- Department of Pediatrics/Key Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Dezhi Mu
- Department of Pediatrics/Key Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), West China Second University Hospital, Sichuan University, Chengdu, 610041, China.
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Lv J, Xing L, Zhong X, Li K, Liu M, Du K. Role of N6-methyladenosine modification in central nervous system diseases and related therapeutic agents. Biomed Pharmacother 2023; 162:114583. [PMID: 36989722 DOI: 10.1016/j.biopha.2023.114583] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/14/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023] Open
Abstract
N6-methyladenosine (m6A) is a ubiquitous mRNA modification in eukaryotes. m6A occurs through the action of methyltransferases, demethylases, and methylation-binding proteins. m6A methylation of RNA is associated with various neurological disorders, including Alzheimer's disease (AD), Parkinson's disease (PD), depression, cerebral apoplexy, brain injury, epilepsy, cerebral arteriovenous malformations, and glioma. Furthermore, recent studies report that m6A-related drugs have attracted considerable concerns in the therapeutic areas of neurological disorders. Here, we mainly summarized the role of m6A modification in neurological diseases and the therapeutic potential of m6A-related drugs. The aim of this review is expected to be useful to systematically assess m6A as a new potential biomarker and develop innovative modulators of m6A for the amelioration and treatment of neurological disorders.
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Affiliation(s)
- Junya Lv
- School of Pharmacy, Department of Pharmacology, China Medical University, Shenyang 110122, China
| | - Lijuan Xing
- Precision Laboratory of Panjin Central Hospital, Panjin 124000, China
| | - Xin Zhong
- School of Pharmacy, Department of Pharmacology, China Medical University, Shenyang 110122, China
| | - Kai Li
- Department of Surgical Oncology and General Surgery, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, the First Affiliated Hospital of China Medical University, Shenyang 110001, China.
| | - Mingyan Liu
- School of Pharmacy, Department of Pharmacology, China Medical University, Shenyang 110122, China; Liaoning Medical Diagnosis and Treatment Center, Shenyang 110179, China.
| | - Ke Du
- School of Pharmacy, Department of Pharmacology, China Medical University, Shenyang 110122, China; Department of Surgical Oncology and General Surgery, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, the First Affiliated Hospital of China Medical University, Shenyang 110001, China; Liaoning Medical Diagnosis and Treatment Center, Shenyang 110179, China.
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11
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Xia L, Zhang F, Li Y, Mo Y, Zhang L, Li Q, Luo M, Hou X, Du Z, Deng J, Hao E. A new perspective on Alzheimer's disease: m6A modification. Front Genet 2023; 14:1166831. [PMID: 37255714 PMCID: PMC10225986 DOI: 10.3389/fgene.2023.1166831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 04/26/2023] [Indexed: 06/01/2023] Open
Abstract
As a neurodegenerative disease, Alzheimer's disease (AD) is characterized by synaptic loss, extracellular plaques of amyloid accumulation, hyperphosphorylation of tau, and neuroinflammation. Various biological processes are affected by epitranscriptomic modifications, which regulate the metabolism of mRNA in cells and regulate the expression of genes. In response to changes in m6A modification levels, the nervous system becomes dysfunctional and plays a significant role in the development of Alzheimer's disease. As a result of recent research, this paper reviews advances in the understanding of the regulatory mechanisms of m6A modification in the occurrence and development of AD. In addition, the article discusses recent research techniques related to animal models of m6A and AD. Furthermore, it discusses the possibility of studying the pathogenesis of AD at the level of the epitranscriptome, identifying early diagnostic markers, and screening for effective treatment options.
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Affiliation(s)
- Lei Xia
- Guangxi Scientific Experimental Center of Traditional Chinese Medicine, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Nanning, China
| | - Fan Zhang
- Guangxi Scientific Experimental Center of Traditional Chinese Medicine, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Nanning, China
- Guangxi International Zhang Medicine Hospital Affiliated to Gungxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of TCM Formulas Theory and Transformation for Damp Diseases, Guangxi University of Chinese Medicine, Nanning, China
| | - Yulu Li
- Guangxi Scientific Experimental Center of Traditional Chinese Medicine, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Nanning, China
| | - Yuemi Mo
- Guangxi Scientific Experimental Center of Traditional Chinese Medicine, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Nanning, China
| | - Lingqiu Zhang
- Guangxi Scientific Experimental Center of Traditional Chinese Medicine, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Nanning, China
| | - Qianhua Li
- Guangxi Scientific Experimental Center of Traditional Chinese Medicine, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Nanning, China
| | - Minghuang Luo
- Guangxi Scientific Experimental Center of Traditional Chinese Medicine, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Nanning, China
| | - Xiaotao Hou
- Guangxi Scientific Experimental Center of Traditional Chinese Medicine, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Nanning, China
- Guangxi Key Laboratory of TCM Formulas Theory and Transformation for Damp Diseases, Guangxi University of Chinese Medicine, Nanning, China
| | - Zhengcai Du
- Guangxi Scientific Experimental Center of Traditional Chinese Medicine, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Nanning, China
- Guangxi Key Laboratory of TCM Formulas Theory and Transformation for Damp Diseases, Guangxi University of Chinese Medicine, Nanning, China
| | - Jiagang Deng
- Guangxi Scientific Experimental Center of Traditional Chinese Medicine, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Nanning, China
- Guangxi Key Laboratory of TCM Formulas Theory and Transformation for Damp Diseases, Guangxi University of Chinese Medicine, Nanning, China
| | - Erwei Hao
- Guangxi Scientific Experimental Center of Traditional Chinese Medicine, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Nanning, China
- Guangxi Key Laboratory of TCM Formulas Theory and Transformation for Damp Diseases, Guangxi University of Chinese Medicine, Nanning, China
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12
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Chokkalla AK, Jeong S, Subramanian S, Vemuganti R. Immunomodulatory role of glycoRNAs in the brain. J Cereb Blood Flow Metab 2023; 43:499-504. [PMID: 36644904 PMCID: PMC10063830 DOI: 10.1177/0271678x231151995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/31/2022] [Accepted: 12/05/2022] [Indexed: 01/17/2023]
Abstract
Glycosylation of lipids and proteins significantly increases the molecular diversity in the brain. Membrane-localized glycoconjugates facilitate critical neuro-immune interactions. Therefore, glycodysregulation is increasingly recognized as a novel hallmark of various acute and chronic neurological diseases. Although RNAs are heavily modified, they are never thought to be substrates for glycosylation due to their inaccessibility to the glycosylation machinery in the Golgi apparatus. The astonishing discovery of cell surface glycoRNAs opened new avenues for glycomedicine. This review highlighted the key features of GlycoRNAs and further discussed their potential immunomodulatory role in the brain, particularly focusing on post-stroke neuroinflammation.
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Affiliation(s)
- Anil K Chokkalla
- Department of Neurological Surgery, University of Wisconsin-Madison, Madison, WI, USA
| | - Soomin Jeong
- Department of Neurological Surgery, University of Wisconsin-Madison, Madison, WI, USA
- Neuroscience Training Program, University of Wisconsin-Madison, Madison, WI, USA
| | - Shruti Subramanian
- Department of Neurological Surgery, University of Wisconsin-Madison, Madison, WI, USA
| | - Raghu Vemuganti
- Department of Neurological Surgery, University of Wisconsin-Madison, Madison, WI, USA
- Neuroscience Training Program, University of Wisconsin-Madison, Madison, WI, USA
- William S. Middleton Memorial Veteran Administration Hospital, Madison, WI, USA
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13
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Xia X, Wang Y, Zheng JC. Internal m7G methylation: A novel epitranscriptomic contributor in brain development and diseases. MOLECULAR THERAPY. NUCLEIC ACIDS 2023; 31:295-308. [PMID: 36726408 PMCID: PMC9883147 DOI: 10.1016/j.omtn.2023.01.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
In recent years, N7-methylguanosine (m7G) methylation, originally considered as messenger RNA (mRNA) 5' caps modifications, has been identified at defined internal positions within multiple types of RNAs, including transfer RNAs, ribosomal RNAs, miRNA, and mRNAs. Scientists have put substantial efforts to discover m7G methyltransferases and methylated sites in RNAs to unveil the essential roles of m7G modifications in the regulation of gene expression and determine the association of m7G dysregulation in various diseases, including neurological disorders. Here, we review recent findings regarding the distribution, abundance, biogenesis, modifiers, and functions of m7G modifications. We also provide an up-to-date summary of m7G detection and profile mapping techniques, databases for validated and predicted m7G RNA sites, and web servers for m7G methylation prediction. Furthermore, we discuss the pathological roles of METTL1/WDR-driven m7G methylation in neurological disorders. Last, we outline a roadmap for future directions and trends of m7G modification research, particularly in the central nervous system.
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Affiliation(s)
- Xiaohuan Xia
- Center for Translational Neurodegeneration and Regenerative Therapy, Tongji Hospital affiliated to Tongji University School of Medicine, Shanghai 200072, China,Shanghai Frontiers Science Center of Nanocatalytic Medicine, Shanghai 200331, China,Corresponding author: Xiaohuan Xia, Center for Translational Neurodegeneration and Regenerative Therapy, Tongji Hospital affiliated to Tongji University School of Medicine, Shanghai 200065, China.
| | - Yi Wang
- Shanghai Frontiers Science Center of Nanocatalytic Medicine, Shanghai 200331, China,Translational Research Center, Shanghai Yangzhi Rehabilitation Hospital affiliated to Tongji University School of Medicine, Shanghai 201613, China
| | - Jialin C. Zheng
- Center for Translational Neurodegeneration and Regenerative Therapy, Tongji Hospital affiliated to Tongji University School of Medicine, Shanghai 200072, China,Shanghai Frontiers Science Center of Nanocatalytic Medicine, Shanghai 200331, China,Corresponding author: Jialin C. Zheng, Center for Translational Neurodegeneration and Regenerative Therapy, Tongji Hospital affiliated to Tongji University School of Medicine, Shanghai 200065, China.
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14
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Fan Y, Lv X, Chen Z, Peng Y, Zhang M. m6A methylation: Critical roles in aging and neurological diseases. Front Mol Neurosci 2023; 16:1102147. [PMID: 36896007 PMCID: PMC9990872 DOI: 10.3389/fnmol.2023.1102147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 02/02/2023] [Indexed: 02/23/2023] Open
Abstract
N6-methyladenosine (m6A) is the most abundant internal RNA modification in eukaryotic cells, which participates in the functional regulation of various biological processes. It regulates the expression of targeted genes by affecting RNA translocation, alternative splicing, maturation, stability, and degradation. As recent evidence shows, of all organs, brain has the highest abundance of m6A methylation of RNAs, which indicates its regulating role in central nervous system (CNS) development and the remodeling of the cerebrovascular system. Recent studies have shown that altered m6A levels are crucial in the aging process and the onset and progression of age-related diseases. Considering that the incidence of cerebrovascular and degenerative neurologic diseases increase with aging, the importance of m6A in neurological manifestations cannot be ignored. In this manuscript, we focus on the role of m6A methylation in aging and neurological manifestations, hoping to provide a new direction for the molecular mechanism and novel therapeutic targets.
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Affiliation(s)
- Yishu Fan
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xinyi Lv
- Hunan Key Laboratory of Medical Epigenomics, Department of Dermatology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Zhuohui Chen
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yanyi Peng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Mengqi Zhang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
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15
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Mao Y, Jiang F, Xu XJ, Zhou LB, Jin R, Zhuang LL, Juan CX, Zhou GP. Inhibition of IGF2BP1 attenuates renal injury and inflammation by alleviating m6A modifications and E2F1/MIF pathway. Int J Biol Sci 2023; 19:593-609. [PMID: 36632449 PMCID: PMC9830505 DOI: 10.7150/ijbs.78348] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 12/09/2022] [Indexed: 01/04/2023] Open
Abstract
Septic acute kidney injury (AKI) is characterized by inflammation. Pyroptosis often occurs during AKI and is associated with the development of septic AKI. This study found that induction of insulin-like growth factor 2 mRNA binding protein 1 (IGF2BP1) to a higher level can induce pyroptosis in renal tubular cells. Meanwhile, macrophage migration inhibitory factor (MIF), a subunit of NLRP3 inflammasomes, was essential for IGF2BP1-induced pyroptosis. A putative m6A recognition site was identified at the 3'-UTR region of E2F transcription factor 1 (E2F1) mRNA via bioinformatics analyses and validated using mutation and luciferase experiments. Further actinomycin D (Act D) chase experiments showed that IGF2BP1 stabilized E2F1 mRNA dependent on m6A. Electrophoretic mobility shift assay (EMSA) and chromatin immunoprecipitation (ChIP) indicated that E2F1 acted as a transcription factor to promote MIF expression. Thus, IGF2BP1 upregulated MIF through directly upregulating E2F1 expression via m6A modification. Experiments on mice with cecum ligation puncture (CLP) surgery verified the relationships between IGF2BP1, E2F1, and MIF and demonstrated the significance of IGF2BP1 in MIF-associated pyroptosis in vivo. In conclusion, IGF2BP1 was a potent pyroptosis inducer in septic AKI through targeting the MIF component of NLRP3 inflammasomes. Inhibiting IGF2BP1 could be an alternate pyroptosis-based treatment for septic AKI.
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Affiliation(s)
- Yan Mao
- Department of Pediatrics, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Feng Jiang
- Department of Neonatology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Xue-Jiao Xu
- Department of Pediatrics, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Lan-Bo Zhou
- Department of Dermatology, Suzhou Hospital, Nanjing Medical University, Suzhou, China
| | - Rui Jin
- Department of Pediatrics, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Li-Li Zhuang
- Department of Pediatrics, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Chen-Xia Juan
- Department of Nephrology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.,✉ Corresponding authors: Guo-Ping Zhou, Department of Pediatrics, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China. E-mail: ; Chen-Xia Juan, Department of Nephrology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China. E-mail:
| | - Guo-Ping Zhou
- Department of Pediatrics, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China.,✉ Corresponding authors: Guo-Ping Zhou, Department of Pediatrics, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China. E-mail: ; Chen-Xia Juan, Department of Nephrology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China. E-mail:
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