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Dong QQ, Yang Y, Tao H, Lu C, Yang JJ. m6A epitranscriptomic and epigenetic crosstalk in liver fibrosis: Special emphasis on DNA methylation and non-coding RNAs. Cell Signal 2024; 122:111302. [PMID: 39025344 DOI: 10.1016/j.cellsig.2024.111302] [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: 05/30/2024] [Revised: 07/11/2024] [Accepted: 07/12/2024] [Indexed: 07/20/2024]
Abstract
Liver fibrosis is a pathological process caused by a variety of chronic liver diseases. Currently, therapeutic options for liver fibrosis are very limited, highlighting the urgent need to explore new treatment approaches. Epigenetic modifications and epitranscriptomic modifications, as reversible regulatory mechanisms, are involved in the development of liver fibrosis. In recent years, researches in epitranscriptomics and epigenetics have opened new perspectives for understanding the pathogenesis of liver fibrosis. Exploring the epigenetic mechanisms of liver fibrosis may provide valuable insights into the development of new therapies for chronic liver diseases. This review primarily focus on the regulatory mechanisms of N6-methyladenosine (m6A) modification, non-coding RNA, and DNA methylation in organ fibrosis. It discusses the interactions between m6A modification and DNA methylation, as well as between m6A modification and non-coding RNA, providing a reference for understanding the interplay between epitranscriptomics and epigenetics.
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Affiliation(s)
- Qi-Qi Dong
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Yang Yang
- Department of General Surgery, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou 215153, China
| | - Hui Tao
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China.
| | - Chao Lu
- First Affiliated Hospital, Anhui University of Science & Technology, Huainan 232001, China.
| | - Jing-Jing Yang
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China.
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Tan M, Liu S, Liu L. N6-methyladenosine (m6A) RNA modification in fibrosis and collagen-related diseases. Clin Epigenetics 2024; 16:127. [PMID: 39261973 PMCID: PMC11391634 DOI: 10.1186/s13148-024-01736-5] [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: 06/02/2024] [Accepted: 08/26/2024] [Indexed: 09/13/2024] Open
Abstract
Fibrosis is an abnormal tissue healing process characterized by the excessive accumulation of ECM components, such as COL I and COL III, in response to tissue injury or chronic inflammation. Recent advances in epitranscriptomics have underscored the importance of m6A modification in fibrosis. m6A, the most prevalent modification in eukaryotic RNA, is catalyzed by methyltransferases (e.g., METTL3), removed by demethylases (e.g., FTO), and recognized by reader proteins (e.g., YTHDF1/2). These modifications are crucial in regulating collagen metabolism and associated diseases. Understanding the role of m6A modification in fibrosis and other collagen-related conditions holds promise for developing targeted therapies. This review highlights the latest progress in this area.
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Affiliation(s)
- Man Tan
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, No. 120, Longshan Road, Yubei District, Chongqing, China
- Department of Obstetrics and Gynecology, Chongqing Health Center for Women and Children, No. 120, Longshan Road, Yubei District, Chongqing, China
| | - Siyi Liu
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, No. 120, Longshan Road, Yubei District, Chongqing, China
- Department of Obstetrics and Gynecology, Chongqing Health Center for Women and Children, No. 120, Longshan Road, Yubei District, Chongqing, China
| | - Lubin Liu
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, No. 120, Longshan Road, Yubei District, Chongqing, China.
- Department of Obstetrics and Gynecology, Chongqing Health Center for Women and Children, No. 120, Longshan Road, Yubei District, Chongqing, China.
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Li W, Liu Y, Xu R, Zong Y, He L, Hu J, Li G. M 6A modification in cardiovascular disease: With a focus on programmed cell death. Genes Dis 2024; 11:101039. [PMID: 38988324 PMCID: PMC11233881 DOI: 10.1016/j.gendis.2023.05.023] [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: 12/08/2022] [Revised: 04/11/2023] [Accepted: 05/25/2023] [Indexed: 07/12/2024] Open
Abstract
N6-methyladenosine (m6A) methylation is one of the most predominant internal RNA modifications in eukaryotes and has become a hot spot in the field of epigenetics in recent years. Cardiovascular diseases (CVDs) are a leading cause of death globally. Emerging evidence demonstrates that RNA modifications, such as the m6A modification, are associated with the development and progression of many diseases, including CVDs. An increasing body of studies has indicated that programmed cell death (PCD) plays a vital role in CVDs. However, the molecular mechanisms underlying m6A modification and PCD in CVDs remain poorly understood. Herein, elaborating on the highly complex connections between the m6A mechanisms and different PCD signaling pathways and clarifying the exact molecular mechanism of m6A modification mediating PCD have significant meaning in developing new strategies for the prevention and therapy of CVDs. There is great potential for clinical application.
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Affiliation(s)
- Wen Li
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Department of Pathophysiology, MOE Key Lab of Rare Pediatric Diseases, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Yao Liu
- Department of Cardiovascular Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Ruiyan Xu
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Department of Pathophysiology, MOE Key Lab of Rare Pediatric Diseases, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Yuan Zong
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Department of Pathophysiology, MOE Key Lab of Rare Pediatric Diseases, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Lu He
- Department of Obstetrics and Gynecology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Jun Hu
- Department of Cardiovascular Surgery, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Guohua Li
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Department of Pathophysiology, MOE Key Lab of Rare Pediatric Diseases, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
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Feng Y, Shen J, Lin Z, Chen Z, Zhou M, Ma X. PXR Activation Relieves Deoxynivalenol-Induced Liver Oxidative Stress Via Malat1 LncRNA m 6A Demethylation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308742. [PMID: 38654691 PMCID: PMC11220637 DOI: 10.1002/advs.202308742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 03/28/2024] [Indexed: 04/26/2024]
Abstract
Deoxynivalenol (DON) is a prevalent toxin causing severe liver damage through hepatocellular oxidative stress. However, the underlying mechanisms and effective therapeutic approaches remain unknown. Here, the unique role of the xenobiotic metabolism factor pregnane X receptor (PXR) in mediating DON-induced hepatocellular oxidative stress is investigated. Treatment with the PXR agonist 3-indole-propionic acid (IPA) alleviates DON-induced oxidative stress and liver injury both in vitro and in vivo. Mechanistically, it is discovered for the first time that PXR agonist IPA directly transactivates the m6A demethylase FTO expression, leading to site-specific demethylation and decreased abundance of YTHDC1-bound Malat1 lncRNA at single-nucleotide resolution. The diminished m6A modification of Malat1 lncRNA reduces its stability and augments antioxidant pathways governed by NRF2, consequently mitigating DON-induced liver injury. Furthermore, Malat1 knockout mice exhibit decreased DON-induced liver injury, emphasizing the role of Malat1 lncRNA in oxidative stress. Collectively, the findings establish that PXR-mediated m6A-dependent Malat1 lncRNA expression determines hepatocyte oxidative stress via m6A demethylase FTO, providing valuable insights into the potential mechanisms underlying DON-induced liver injury and offers potential therapeutic strategies for its treatment.
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Affiliation(s)
- Yue Feng
- State Key Laboratory of Animal Nutrition, College of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China
| | - Jiakun Shen
- State Key Laboratory of Animal Nutrition, College of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China
| | - Zishen Lin
- State Key Laboratory of Animal Nutrition, College of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China
| | - Zeyi Chen
- College of Life SciencesHenan Agricultural UniversityZhengzhou450046China
| | - Min Zhou
- State Key Laboratory of Animal Nutrition, College of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China
| | - Xi Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China
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He X, Tang B, Zou P, Song Z, Liu J, Pi Z, Xiao Y, Xiao R. m6A RNA methylation: The latent string-puller in fibrosis. Life Sci 2024; 346:122644. [PMID: 38614300 DOI: 10.1016/j.lfs.2024.122644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 03/21/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
Fibrosis is a pathological phenomenon characterized by the aberrant accumulation of extracellular matrix (ECM) in tissues. Fibrosis is a universally age-related disease involving that many organs and is the final stage of many chronic inflammatory diseases, which often threaten the patient's health. Undoubtedly, fibrosis has become a serious economic and health burden worldwide, However, the pathogenesis of fibrosis is complex. Further, the key molecules still remain to be unraveled. Hence, so far, there have been no effective treatments designed against the key targets of fibrosis. The methylation modification on the nitrogen atom at position 6 of adenine (m6A) is the most common mRNA modification in mammals. There is increasing evidence that m6A is actively involved in the pathogenesis of fibrosis. This review aims to highlight m6A-associated mechanisms and functions in several organic fibrosis, which implies that m6A is universal and critical for fibrosis and summarize the outlook of m6A in the treatment of fibrosis. This may light up the unknown aspects of this condition for researchers interested to explore fibrosis further.
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Affiliation(s)
- Xinglan He
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Medical Epigenetics, Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan
| | - Bingsi Tang
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Medical Epigenetics, Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan
| | - Puyu Zou
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Medical Epigenetics, Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan
| | - Zehong Song
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Medical Epigenetics, Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan
| | - Jiani Liu
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Medical Epigenetics, Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan
| | - Zixin Pi
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Yangfan Xiao
- Clinical Nursing Teaching and Research Section, The Second Xiangya Hospital, Central South University, Changsha, China; Department of Anesthesiology, The Second Xiangya Hospital, Central South University, Changsha, China.
| | - Rong Xiao
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Medical Epigenetics, Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan.
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Liu S, Liu M, Li Y, Song Q. N6-methyladenosine-dependent signaling in colorectal cancer: Functions and clinical potential. Crit Rev Oncol Hematol 2024; 198:104360. [PMID: 38615872 DOI: 10.1016/j.critrevonc.2024.104360] [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: 10/30/2023] [Revised: 03/29/2024] [Accepted: 04/10/2024] [Indexed: 04/16/2024] Open
Abstract
Colorectal cancer (CRC) ranks as the third most prevalent malignancy worldwide. Despite the gradual expansion of therapeutic options for CRC, its clinical management remains a formidable challenge. And, because of the current dearth of technical means for early CRC screening, most patients are diagnosed at an advanced stage. Therefore, it is imperative to develop novel diagnostic and therapeutic tools for this disease. N6-methyladenosine (m6A), the predominant RNA modification in eukaryotes, can be recognized by m6A-specific methylated reading proteins to modulate gene expression. Studies have revealed that CRC disrupts m6A homeostasis through various mechanisms, thereby sustaining aberrant signal transduction and promoting its own progression. Consequently, m6A-based diagnostic and therapeutic strategies have garnered widespread attention. Although utilizing m6A as a biomarker and drug target has demonstrated promising feasibility, existing observations primarily stem from preclinical models; henceforth necessitating further investigation and resolution of numerous outstanding issues.
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Affiliation(s)
- Shaojun Liu
- Department of Oncology, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese medicine, Suzhou, Jiangsu, China
| | - Min Liu
- Department of Oncology, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese medicine, Suzhou, Jiangsu, China
| | - Yuxuan Li
- Department of Oncology, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese medicine, Suzhou, Jiangsu, China
| | - Qing Song
- Department of Oncology, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese medicine, Suzhou, Jiangsu, China.
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Li S, Mehal WZ, Ouyang X. RNA modifications in the progression of liver diseases: from fatty liver to cancer. SCIENCE CHINA. LIFE SCIENCES 2024:10.1007/s11427-023-2494-x. [PMID: 38809498 DOI: 10.1007/s11427-023-2494-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 11/24/2023] [Indexed: 05/30/2024]
Abstract
Non-alcoholic fatty liver disease (NAFLD) has emerged as a prominent global health concern associated with high risk of metabolic syndrome, and has impacted a substantial segment of the population. The disease spectrum ranges from simple fatty liver to non-alcoholic steatohepatitis (NASH), which can progress to cirrhosis and hepatocellular carcinoma (HCC) and is increasingly becoming a prevalent indication for liver transplantation. The existing therapeutic options for NAFLD, NASH, and HCC are limited, underscoring the urgent need for innovative treatment strategies. Insights into gene expression, particularly RNA modifications such as N6 methyladenosine (m6A), hold promising avenues for interventions. These modifications play integral roles in RNA metabolism and cellular functions, encompassing the entire NAFLD-NASH-HCC progression. This review will encompass recent insights on diverse RNA modifications, including m6A, pseudouridine (ψ), N1-methyladenosine (m1A), and 5-methylcytidine (m5C) across various RNA species. It will uncover their significance in crucial aspects such as steatosis, inflammation, fibrosis, and tumorigenesis. Furthermore, prospective research directions and therapeutic implications will be explored, advancing our comprehensive understanding of the intricate interconnected nature of these pathological conditions.
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Affiliation(s)
- Simiao Li
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, 06520, USA
| | - Wajahat Z Mehal
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, 06520, USA
| | - Xinshou Ouyang
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, 06520, USA.
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Zhou HY, Wang BQ, Chen MX, Wang YF, Jiang YF, Ma J. KDM4C represses liver fibrosis by regulating H3K9me3 methylation of ALKBH5 and m6A methylation of snail1 mRNA. J Dig Dis 2024; 25:298-309. [PMID: 38938016 DOI: 10.1111/1751-2980.13291] [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: 11/13/2023] [Revised: 05/22/2024] [Accepted: 05/24/2024] [Indexed: 06/29/2024]
Abstract
OBJECTIVE We aimed to disclose the molecular mechanism of snail1 in liver fibrosis. METHODS Carbon tetrachloride (CCl4) was used to induce a liver fibrosis model in mice whereby serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels were evaluated, and liver pathological alternations were assessed. Rat hepatic stellate cells (HSC-T6) were irritated with transforming growth factor (TGF)-β1, followed by assessment of cell viability and migration. The levels of snail1, ALKBH5, and lysine specific demethylase 4C (KDM4C) were quantified by immunohistochemistry, western blot, or reverse transcription-quantitative polymerase chain reaction, in addition to α-smooth muscle actin (SMA), anti-collagen type I α1 (COL1A1), vimentin, and E-cadherin. Photoactivatable ribonucleoside-enhanced crosslinking and immunoprecipitation and RNA stability were evaluated to determine the relationship between ALKBH5 and snail1. Changes in KDM4C-bound ALKBH5 promoter and enrichment of histone H3 lysine 9 trimethylation (H3K9me3) at the ALKBH5 promoter were determined using chromatin immunoprecipitation. RESULTS In fibrosis mice, snail1 was upregulated while ALKBH5 and KDM4C were downregulated. KDM4C overexpression reduced serum ALT and AST levels, liver injury, and α-SMA, COL1A1 and VIMENTIN expressions but increased E-cadherin expression. However, the aforementioned trends were reversed by concurrent overexpression of snail1. In HSC-T6 cells exposed to TGF-β1, ALKBH5 overexpression weakened cell viability and migration, downregulated α-SMA, COL1A1 and VIMENTIN, upregulated E-CADHERIN, and decreased m6A modification of snail1 and its mRNA stability. KDM4C increased ALKBH5 expression by lowering H3K9me3 level, but inhibited HSC-T6 cell activation by regulating the ALKBH5/snail1 axis. CONCLUSION KDM4C decreases H3K9me3 methylation to upregulate ALKBH5 and subsequently inhibits snail1, ultimately impeding liver fibrosis.
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Affiliation(s)
- Hua Ying Zhou
- Department of Infectious Diseases, The Second Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Bing Qing Wang
- Department of Infectious Diseases, The Second Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Meng Xuan Chen
- Department of Infectious Diseases, The Second Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Yi Fan Wang
- Department of Infectious Diseases, The Second Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Yong Fang Jiang
- Department of Infectious Diseases, The Second Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Jing Ma
- Department of Infectious Diseases, The Second Xiangya Hospital, Central South University, Changsha, Hunan Province, China
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Ma L, Zhou X, Yao S, Zhang X, Mao J, Vona B, Fan L, Lou S, Li D, Wang L, Pan Y. METTL3-dependent m 6A modification of PSEN1 mRNA regulates craniofacial development through the Wnt/β-catenin signaling pathway. Cell Death Dis 2024; 15:229. [PMID: 38509077 PMCID: PMC10954657 DOI: 10.1038/s41419-024-06606-9] [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: 11/23/2023] [Revised: 03/07/2024] [Accepted: 03/11/2024] [Indexed: 03/22/2024]
Abstract
Craniofacial malformations, often associated with syndromes, are prevalent birth defects. Emerging evidence underscores the importance of m6A modifications in various bioprocesses such as stem cell differentiation, tissue development, and tumorigenesis. Here, in vivo, experiments with zebrafish models revealed that mettl3-knockdown embryos at 144 h postfertilization exhibited aberrant craniofacial features, including altered mouth opening, jaw dimensions, ethmoid plate, tooth formation and hypoactive behavior. Similarly, low METTL3 expression inhibited the proliferation and migration of BMSCs, HEPM cells, and DPSCs. Loss of METTL3 led to reduced mRNA m6A methylation and PSEN1 expression, impacting craniofacial phenotypes. Co-injection of mettl3 or psen1 mRNA rescued the level of Sox10 fusion protein, promoted voluntary movement, and mitigated abnormal craniofacial phenotypes induced by mettl3 knockdown in zebrafish. Mechanistically, YTHDF1 enhanced the mRNA stability of m6A-modified PSEN1, while decreased METTL3-mediated m6A methylation hindered β-catenin binding to PSEN1, suppressing Wnt/β-catenin signaling. Pharmacological activation of the Wnt/β-catenin pathway partially alleviated the phenotypes of mettl3 morphant and reversed the decreases in cell proliferation and migration induced by METTL3 silencing. This study elucidates the pivotal role of METTL3 in craniofacial development via the METTL3/YTHDF1/PSEN1/β-catenin signaling axis.
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Affiliation(s)
- Lan Ma
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Xi Zhou
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Department of Orthodontics, The Affiliated Stomatology Hospital of Nanjing Medical University, Nanjing, China
| | - Siyue Yao
- The Affiliated Stomatology Hospital of Suzhou Vocational Health College, Suzhou, China
| | - Xinyu Zhang
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Department of Orthodontics, The Affiliated Stomatology Hospital of Nanjing Medical University, Nanjing, China
| | - Ji Mao
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Department of Orthodontics, The Affiliated Stomatology Hospital of Nanjing Medical University, Nanjing, China
| | - Barbara Vona
- Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
- Institute for Auditory Neuroscience and Inner Ear Lab, University Medical Center Göttingen, Göttingen, Germany
| | - Liwen Fan
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Department of Orthodontics, The Affiliated Stomatology Hospital of Nanjing Medical University, Nanjing, China
| | - Shu Lou
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Department of Orthodontics, The Affiliated Stomatology Hospital of Nanjing Medical University, Nanjing, China
| | - Dandan Li
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Department of Orthodontics, The Affiliated Stomatology Hospital of Nanjing Medical University, Nanjing, China
| | - Lin Wang
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Department of Orthodontics, The Affiliated Stomatology Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Yongchu Pan
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.
- Department of Orthodontics, The Affiliated Stomatology Hospital of Nanjing Medical University, Nanjing, China.
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, China.
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Wang C, Xu Y, Xu M, Sun C, Zhang X, Tao X, Song T. SPOCK2 modulates neuropathic pain by interacting with MT1-MMP to regulate astrocytic MMP-2 activation in rats with chronic constriction injury. J Neuroinflammation 2024; 21:57. [PMID: 38388415 PMCID: PMC10885439 DOI: 10.1186/s12974-024-03051-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 02/18/2024] [Indexed: 02/24/2024] Open
Abstract
BACKGROUND Neuropathic pain (NP) is a kind of intractable pain. The pathogenesis of NP remains a complicated issue for pain management practitioners. SPARC/osteonectin, CWCV, and Kazal-like domains proteoglycan 2 (SPOCK2) are members of the SPOCK family that play a significant role in the development of the central nervous system. In this study, we investigated the role of SPOCK2 in the development of NP in a rat model of chronic constriction injury (CCI). METHODS Sprague-Dawley rats were randomly grouped to establish CCI models. We examined the effects of SPOCK2 on pain hpersensitivity and spinal astrocyte activation after CCI-induced NP. Paw withdrawal threshold (PWT) and paw withdrawal latency (PWL) were used to reflects the pain behavioral degree. Molecular mechanisms involved in SPOCK2-mediated NP in vivo were examined by western blot analysis, immunofluorescence, immunohistochemistry, and co-immunoprecipitation. In addition, we examined the SPOCK2-mediated potential protein-protein interaction (PPI) in vitro coimmunoprecipitation (Co-IP) experiments. RESULTS We founded the expression level of SPOCK2 in rat spinal cord was markedly increased after CCI-induced NP, while SPOCK2 downregulation could partially relieve pain caused by CCI. Our research showed that SPOCK2 expressed significantly increase in spinal astrocytes when CCI-induced NP. In addition, SPOCK2 could act as an upstream signaling molecule to regulate the activation of matrix metalloproteinase-2 (MMP-2), thus affecting astrocytic ERK1/2 activation and interleukin (IL)-1β production in the development of NP. Moreover, in vitro coimmunoprecipitation (Co-IP) experiments showed that SPOCK2 could interact with membrane-type 1 matrix metalloproteinase (MT1-MMP/MMP14) to regulate MMP-2 activation by the SPARC extracellular (SPARC_EC) domain. CONCLUSIONS Research shows that SPOCK2 can interact with MT1-MMP to regulate MMP-2 activation, thus affecting astrocytic ERK1/2 activation and IL-1β production to achieve positive promotion of NP.
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Affiliation(s)
- Chenglong Wang
- Department of Pain, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Yitong Xu
- Department of Pathology, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Miao Xu
- Department of Pain, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Cong Sun
- Department of Pain, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Xiaojiao Zhang
- Department of Pain, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Xueshu Tao
- Department of Pain, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Tao Song
- Department of Pain, The First Hospital of China Medical University, Shenyang, 110001, China.
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Ye W, Lv X, Gao S, Li Y, Luan J, Wang S. Emerging role of m6A modification in fibrotic diseases and its potential therapeutic effect. Biochem Pharmacol 2023; 218:115873. [PMID: 37884198 DOI: 10.1016/j.bcp.2023.115873] [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: 09/06/2023] [Revised: 10/18/2023] [Accepted: 10/19/2023] [Indexed: 10/28/2023]
Abstract
Fibrosis can occur in a variety of organs such as the heart, lung, liver and kidney, and its pathological changes are mainly manifested by an increase in fibrous connective tissue and a decrease in parenchymal cells in organ tissues, and continuous progression can lead to structural damage and organ hypofunction, or even failure, seriously threatening human health and life. N6-methyladenosine (m6A) modification, as one of the most common types of internal modifications of RNA in eukaryotes, exerts a multifunctional role in physiological and pathological processes by regulating the metabolism of RNA. With the in-depth understanding and research of fibrosis, we found that m6A modification plays an important role in fibrosis, and m6A regulators can further participate in the pathophysiological process of fibrosis by regulating the function of specific cells. In our review, we summarized the latest research advances in m6A modification in fibrosis, as well as the specific functions of different m6A regulators. In addition, we focused on the mechanisms and roles of m6A modification in cardiac fibrosis, liver fibrosis, pulmonary fibrosis, renal fibrosis, retinal fibrosis and oral submucosal fibrosis, with the aim of providing new insights and references for finding potential therapeutic targets for fibrosis. Finally, we discussed the prospects and challenges of targeted m6A modification in the treatment of fibrotic diseases.
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Affiliation(s)
- Wufei Ye
- Department of Pharmacy, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, Anhui Province, China
| | - Xiongwen Lv
- The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Province Key Laboratory of Major Autoimmune Diseases, School of Pharmacy, Institute for Liver Disease of Anhui Medical University, Hefei, Anhui Province, China
| | - Songsen Gao
- Department of Orthopedics (Spinal Surgery), The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Yueran Li
- Department of Pharmacy, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, Anhui Province, China
| | - Jiajie Luan
- Department of Pharmacy, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, Anhui Province, China
| | - Sheng Wang
- Department of Pharmacy, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, Anhui Province, China.
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