1
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Liu XW, Xu HW, Yi YY, Zhang SB, Chang SJ, Pan W, Wang SJ. Inhibition of Mettl3 ameliorates osteoblastic senescence by mitigating m6A modifications on Slc1a5 via Igf2bp2-dependent mechanisms. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167273. [PMID: 38844111 DOI: 10.1016/j.bbadis.2024.167273] [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: 03/11/2024] [Revised: 04/25/2024] [Accepted: 05/27/2024] [Indexed: 06/14/2024]
Abstract
Age-related osteoporosis is characterized by a marked decrease in the number of osteoblasts, which has been partly attributed to the senescence of cells of the osteoblastic lineage. Epigenetic studies have provided new insights into the mechanisms of current osteoporosis treatments and bone repair pathophysiology. N6-methyladenosine (m6A) is a novel transcript modification that plays a major role in cellular senescence and is essential for skeletal development and internal environmental stability. Bioinformatics analysis revealed that the expression of the m6A reading protein Igf2bp2 was significantly higher in osteoporosis patients. However, the role of Igf2bp2 in osteoblast senescence has not been elucidated. In this study, we found that Igf2bp2 levels are increased in ageing osteoblasts induced by multiple repetition and H2O2. Increasing Igf2bp2 expression promotes osteoblast senescence by increasing the stability of Slc1a5 mRNA and inhibiting cell cycle progression. Additionally, Mettl3 was identified as Slc1a5 m6A-methylated protein with increased m6A modification. The knockdown of Mettl3 in osteoblasts inhibits the reduction of senescence, whereas the overexpression of Mettl3 promotes the senescence of osteoblasts. We found that administering Cpd-564, a specific inhibitor of Mettl3, induced increased bone mass and decreased bone marrow fat accumulation in aged rats. Notably, in an OVX rat model, Igf2bp2 small interfering RNA delivery also induced an increase in bone mass and decreased fat accumulation in the bone marrow. In conclusion, our study demonstrated that the Mettl3/Igf2bp2-Slc1a5 axis plays a key role in the promotion of osteoblast senescence and age-related bone loss.
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Affiliation(s)
- Xiao-Wei Liu
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Hao-Wei Xu
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Yu-Yang Yi
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Shu-Bao Zhang
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Sheng-Jie Chang
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Wei Pan
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Shan-Jin Wang
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
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2
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Su X, Qu Y, Mu D. Methyltransferase-like 3 modifications of RNAs: Implications for the pathology in the endocrine system. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167010. [PMID: 38176459 DOI: 10.1016/j.bbadis.2023.167010] [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: 09/26/2023] [Revised: 12/18/2023] [Accepted: 12/27/2023] [Indexed: 01/06/2024]
Abstract
Methyltransferase-like 3 (METTL3) is the most well-known element of N6-methyladenosine modification on RNAs. METTL3 deposits a methyl group onto target RNAs to modify their expression, ultimately regulating various physiological and pathological events. Numerous studies have suggested the significant role of METTL3 in endocrine dysfunction and related disorders. However, reviews that summarize and interpret these studies are lacking. In this review, we systematically analyze such studies, including obesity, type 2 diabetes mellitus (T2DM), T2DM-induced diseases, pancreatic cancer, and thyroid carcinoma. This review indicates that METTL3 contributes remarkably to the endocrine dysfunction and progression of obesity, T2DM, T2DM-induced diseases, pancreatic cancer, and thyroid carcinoma. In conclusion, this review provides a comprehensive interpretation of the mechanism via which METTL3 functions on RNAs and regulates various endocrine dysfunction events and suggest potential associated correlations. Our review, thus, provides a valuable reference for further fundamental studies and clinical applications.
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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
| | - 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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3
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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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Sun YH, Zhao TJ, Li LH, Wang Z, Li HB. Emerging role of N6-methyladenosine in the homeostasis of glucose metabolism. Am J Physiol Endocrinol Metab 2024; 326:E1-E13. [PMID: 37938178 DOI: 10.1152/ajpendo.00225.2023] [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: 07/21/2023] [Revised: 09/21/2023] [Accepted: 11/02/2023] [Indexed: 11/09/2023]
Abstract
N6-methyladenosine (m6A) is the most prevalent post-transcriptional internal RNA modification, which is involved in the regulation of diverse physiological processes. Dynamic and reversible m6A modification has been shown to regulate glucose metabolism, and dysregulation of m6A modification contributes to glucose metabolic disorders in multiple organs and tissues including the pancreas, liver, adipose tissue, skeletal muscle, kidney, blood vessels, and so forth. In this review, the role and molecular mechanism of m6A modification in the regulation of glucose metabolism were summarized, the potential therapeutic strategies that improve glucose metabolism by targeting m6A modifiers were outlined, and feasible directions of future research in this field were discussed as well, providing clues for translational research on combating metabolic diseases based on m6A modification in the future.
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Affiliation(s)
- Yuan-Hai Sun
- Institute of Pharmacology, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Teng-Jiao Zhao
- Institute of Pharmacology, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Ling-Huan Li
- Institute of Pharmacology, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, People's Republic of China
- College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, People's Republic of China
| | - Zhen Wang
- Center for Laboratory Medicine, Allergy Center, Department of Transfusion Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, People's Republic of China
| | - Han-Bing Li
- Institute of Pharmacology, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, People's Republic of China
- Section of Endocrinology, School of Medicine, Yale University, New Haven, Connecticut, United States
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5
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Sun Y, Bai YP, Wang DG, Xing YJ, Zhang T, Wang W, Zhou SM, Cheng JH, Chang WW, Kong X, Yao XM, Guo LQ. Protective effects of metformin on pancreatic β-cell ferroptosis in type 2 diabetes in vivo. Biomed Pharmacother 2023; 168:115835. [PMID: 37924788 DOI: 10.1016/j.biopha.2023.115835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/26/2023] [Accepted: 11/01/2023] [Indexed: 11/06/2023] Open
Abstract
Metformin (Met) is the recommended first-line therapeutic drug for type 2 diabetes mellitus (T2DM) and exerts protective effects on β-cell damage. Ferroptosis, a new form of cell death, is associated with pancreatic islet injury in patients with T2DM. However, the protective effects of Met treatment against β-cell damage through ferroptosis modulation remain under-reported. This study investigated the in vivo effects of Met treatment on pancreatic β-cell ferroptosis using two different diabetic mouse models, namely, low-dose streptozotocin (STZ) and high-fat diet (HFD)-induced diabetic mice and db/db mice. Met treatment significantly restored insulin release, reduced cell mortality, and decreased the overproduction of lipid-related reactive oxygen species in the islets of both STZ/HFD-induced diabetic mice and db/db mice. Administration of the Ras-selective lethal 3 injection significantly attenuated the antiferroptosis effects of Met. Mechanistically, Met treatment alleviated β-cell ferroptosis in T2DM, which was associated with the regulation of the GPX4/ACSL4 axis in the islets. In conclusion, our findings highlight the significance of ferroptosis in T2DM β-cell damage and provide novel insights into the protective effects of Met against islet β cells.
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Affiliation(s)
- Yue Sun
- Department of Gerontology, Geriatric endocrinology unit, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, China; Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu 241002, China
| | - Ya-Ping Bai
- Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu 241002, China; Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu 241000, China
| | - De-Guo Wang
- Department of Gerontology, Geriatric endocrinology unit, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, China; Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu 241002, China
| | - Yu-Jie Xing
- Department of Gerontology, Geriatric endocrinology unit, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, China; Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu 241002, China
| | - Teng Zhang
- Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu 241002, China
| | - Wen Wang
- Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu 241002, China
| | - Si-Min Zhou
- Department of Gerontology, Geriatric endocrinology unit, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, China; Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu 241002, China
| | - Jin-Han Cheng
- Department of Endocrinology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, China
| | - Wei-Wei Chang
- Department of Epidemiology and Health statistics, School of public health, Wannan Medical College, Wuhu 241002, Anhui, China
| | - Xiang Kong
- Department of Gerontology, Geriatric endocrinology unit, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, China; Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu 241002, China; Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu 241000, China; Central Laboratory of Yijishan Hospital, Wuhu 241001, China.
| | - Xin-Ming Yao
- Department of Endocrinology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, China.
| | - Li-Qun Guo
- School of Pharmacy, Anhui Innovative Center for Drug Basic Research of Metabolic Diseases, Wannan Medical College, Wuhu 241002, 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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Sun Y, Guo LQ, Wang DG, Xing YJ, Bai YP, Zhang T, Wang W, Zhou SM, Yao XM, Cheng JH, Chang WW, Lv K, Li CX, Kong X. Metformin alleviates glucolipotoxicity-induced pancreatic β cell ferroptosis through regulation of the GPX4/ACSL4 axis. Eur J Pharmacol 2023; 956:175967. [PMID: 37549729 DOI: 10.1016/j.ejphar.2023.175967] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/05/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023]
Abstract
Ferroptosis, a new type of cell death, is associated with pancreatic β cell damage. However, the role of glucolipotoxicity in inducing β cell ferroptosis remains unclear. Metformin (Met), exenatide (Exe), and saxagliptin (Sax) are frequently used anti-hyperglycaemic drugs. However, their protective effects on β cells through ferroptosis modulation are not well-established. In this study, we observed significant ferroptosis in NIT-1 cells and primary mouse islets after exposure to high glucose and palmitate (HG/PA). Compared to Exe and Sax, Met significantly alleviated glucolipotoxicity-induced pancreatic β cell ferroptosis. Blocking the activity of glutathione peroxidase 4 (GPX4) with Ras-selective lethal 3 or inhibiting its expression by small interfering RNA transfection significantly attenuated the anti-ferroptosis effects of Met. Mechanistically, Met alleviates HG/PA-induced β cell ferroptosis by regulating the GPX4/ACSL4 axis. Collectively, our findings highlight the significance of ferroptosis in pancreatic β cell glucolipotoxicity-induced injury and provide novel insights into the protective effects of Met on islet β cells.
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Affiliation(s)
- Yue Sun
- Department of Gerontology, Geriatric Endocrinology Unit, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, 241001, China; Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu, 241002, China.
| | - Li-Qun Guo
- Department of Pharmacology, Wannan Medical College, Wuhu, 241002, China.
| | - De-Guo Wang
- Department of Gerontology, Geriatric Endocrinology Unit, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, 241001, China.
| | - Yu-Jie Xing
- Department of Gerontology, Geriatric Endocrinology Unit, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, 241001, China; Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu, 241002, China.
| | - Ya-Ping Bai
- Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu, 241002, China; Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, China.
| | - Teng Zhang
- Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu, 241002, China.
| | - Wen Wang
- Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu, 241002, China.
| | - Si-Min Zhou
- Department of Gerontology, Geriatric Endocrinology Unit, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, 241001, China; Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu, 241002, China.
| | - Xin-Ming Yao
- Department of Endocrinology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, 241001, China.
| | - Jin-Han Cheng
- Department of Endocrinology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, 241001, China.
| | - Wei-Wei Chang
- Department of Epidemiology and Health Statistics, School of Public Health, Wannan Medical College, Wuhu, 241002, Anhui, China.
| | - Kun Lv
- Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu, 241002, China; Central Laboratory of Yijishan Hospital, Wuhu, 241001, China; Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, China.
| | - Chun-Xiao Li
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200092, China.
| | - Xiang Kong
- Department of Gerontology, Geriatric Endocrinology Unit, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, 241001, China; Anhui Provincial Key Laboratory of Non-coding RNA Basic and Clinical Transformation, Wannan Medical College, Wuhu, 241002, China; Central Laboratory of Yijishan Hospital, Wuhu, 241001, China; Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, China.
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8
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Masnoon J, Ishaque A, Khan I, Salim A, Kabir N. Effect of lawsone-preconditioned mesenchymal stem cells on the regeneration of pancreatic β cells in Type 1 diabetic rats. Cell Biochem Funct 2023; 41:833-844. [PMID: 37814478 DOI: 10.1002/cbf.3833] [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: 03/10/2023] [Revised: 07/06/2023] [Accepted: 07/12/2023] [Indexed: 10/11/2023]
Abstract
Diabetes is one of the major health issues globally. Type 1 diabetes mellitus develops due to the destruction of pancreatic β cells. Mesenchymal stem cells (MSCs) having remarkable self-renewal and differentiation potential, can regenerate β cells. MSCs preconditioned with bioactive small molecules possess enhanced biological features and therapeutic potential under in vivo environment. Interestingly, compounds of naphthoquinone class possess antidiabetic and anti-inflammatory properties, and can be explored as potential candidates for preconditioning MSCs. This study analyzed the effect of lawsone-preconditioned human umbilical cord MSCs (hUMSCs) on the regeneration of β cells in the streptozotocin (STZ)-induced Type 1 diabetes (T1D) rats. hUMSCs were isolated and characterized for the presence of surface markers. MSCs were preconditioned with optimized concentration of lawsone. T1D rat model was established by injecting 50 mg/kg of STZ intraperitoneally. Untreated and lawsone-preconditioned hUMSCs were transplanted into the diabetic rats via tail vein. Fasting blood sugar and body weight were monitored regularly for 4 weeks. Pancreas was harvested and β cell regeneration was evaluated by hematoxylin and eosin staining, and gene expression analysis. Immunohistochemistry was also done to assess the insulin expression. Lawsone-preconditioned hUMSCs showed better anti-hyperglycemic effect in comparison with untreated hUMSCs. Histological analysis presented the regeneration of islets of Langerhans with upregulated expression of βcell genes and reduced expression of inflammatory markers. Immunohistochemistry revealed strong insulin expression in the preconditioned hUMSCs compared with the untreated hUMSCs. It is concluded from the present study that lawsone-preconditioned hMSCs were able to exhibit pronounced anti-hyperglycemic effect in vivo compared with hUMSCs alone.
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Affiliation(s)
- Javeria Masnoon
- Stem Cell Research Laboratory, Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Aisha Ishaque
- Stem Cell Research Laboratory, Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Irfan Khan
- Stem Cell Research Laboratory, Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Asmat Salim
- Stem Cell Research Laboratory, Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Nurul Kabir
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
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9
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Zhang H, Gu Y, Gang Q, Huang J, Xiao Q, Ha X. N6-methyladenosine RNA modification: an emerging molecule in type 2 diabetes metabolism. Front Endocrinol (Lausanne) 2023; 14:1166756. [PMID: 37484964 PMCID: PMC10360191 DOI: 10.3389/fendo.2023.1166756] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 06/16/2023] [Indexed: 07/25/2023] Open
Abstract
Type 2 diabetes (T2D) is a metabolic disease with an increasing rate of incidence worldwide. Despite the considerable progress in the prevention and intervention, T2D and its complications cannot be reversed easily after diagnosis, thereby necessitating an in-depth investigation of the pathophysiology. In recent years, the role of epigenetics has been increasingly demonstrated in the disease, of which N6-methyladenosine (m6A) is one of the most common post-transcriptional modifications. Interestingly, patients with T2D show a low m6A abundance. Thus, a comprehensive analysis and understanding of this phenomenon would improve our understanding of the pathophysiology, as well as the search for new biomarkers and therapeutic approaches for T2D. In this review, we systematically introduced the metabolic roles of m6A modification in organs, the metabolic signaling pathways involved, and the effects of clinical drugs on T2D.
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Affiliation(s)
- Haocheng Zhang
- The Second School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
- Department of Clinical Laboratory, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, Gansu, China
- Key Laboratory of Stem Cells and Gene Drugs of Gansu Province, Lanzhou, Gansu, China
| | - Yan Gu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Qiaojian Gang
- The Second School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
| | - Jing Huang
- School of Public Health, Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu, China
| | - Qian Xiao
- School of Public Health, Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu, China
| | - Xiaoqin Ha
- The Second School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
- Department of Clinical Laboratory, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, Gansu, China
- Key Laboratory of Stem Cells and Gene Drugs of Gansu Province, Lanzhou, Gansu, China
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10
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Yang K, Sun J, Zhang Z, Xiao M, Ren D, Liu SM. Reduction of mRNA m 6A associates with glucose metabolism via YTHDC1 in human and mice. Diabetes Res Clin Pract 2023; 198:110607. [PMID: 36878322 DOI: 10.1016/j.diabres.2023.110607] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/23/2023] [Accepted: 03/01/2023] [Indexed: 03/07/2023]
Abstract
AIMS N6-methyladenosine (m6A) in mRNA is involved in glucose metabolism. Our goal is to investigate the relationship of glucose metabolism, m6A and YTH domain-containing protein 1 (YTHDC1), a binding protein to m6A, in the development of type 2 diabetes (T2D). METHODS HPLC-MS/MS and qRT-PCR were used to quantify m6A and YTHDC1 levels in white blood cells from patients with T2D and healthy individuals. MIP-CreERT and tamoxifen treatment were used to create β-cell Ythdc1 knockout mice (βKO). m6A sequencing and RNA sequencing were performed in wildtype/βKO islets and MIN6 cells to identify the differential genes. RESULTS In T2D patients, both of m6A and YTHDC1 levels were reduced and associated with fasting glucose. Deletion of Ythdc1 resulted in glucose intolerance and diabetes due to decreased insulin secretion, even though β-cell mass in βKO mice was comparable to wildtype mice. Moreover, Ythdc1 was shown to bind to SRSF3 (serine/arginine-rich splicing factor 3) and CPSF6 (cleavage and polyadenylation specific factor 6) in β-cells. CONCLUSIONS Our data suggested that YTHDC1 may regulate mRNA splicing and export by interacting with SRSF3 and CPSF6 to modulate glucose metabolism via regulating insulin secretion, implying YTHDC1 might be a novel potential target for lowing glucose.
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Affiliation(s)
- Kun Yang
- Department of Clinical Laboratory, Center for Gene Diagnosis, and Program of Clinical Laboratory, Zhongnan Hospital of Wuhan University, Wuhan, Hubei Province 430071, China
| | - Juan Sun
- Department of Neurobiology, The University of Chicago, 5841, S. Maryland Avenue, MC 1027, Chicago, IL 60637, USA
| | - Zijie Zhang
- Department of Chemistry, The University of Chicago, 5841, S. Maryland Avenue, MC 1027, Chicago, IL 60637, USA
| | - Mengyao Xiao
- Department of Clinical Laboratory, Center for Gene Diagnosis, and Program of Clinical Laboratory, Zhongnan Hospital of Wuhan University, Wuhan, Hubei Province 430071, China
| | - Decheng Ren
- Department of Medicine, The University of Chicago, 5841 S. Maryland Avenue, MC 1027, Chicago, IL 60637, USA.
| | - Song-Mei Liu
- Department of Clinical Laboratory, Center for Gene Diagnosis, and Program of Clinical Laboratory, Zhongnan Hospital of Wuhan University, Wuhan, Hubei Province 430071, China.
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Mesenchymal stem cells-derived HIF-1α-overexpressed extracellular vesicles ameliorate hypoxia-induced pancreatic β cell apoptosis and senescence through activating YTHDF1-mediated protective autophagy. Bioorg Chem 2022; 129:106194. [DOI: 10.1016/j.bioorg.2022.106194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/21/2022] [Accepted: 10/03/2022] [Indexed: 01/17/2023]
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