1
|
Wei X, Wang J, Sun Y, Zhao T, Luo X, Lu J, Hou W, Yu X, Xue L, Yan Y, Wang H. MiR-222-3p suppresses C2C12 myoblast proliferation and differentiation via the inhibition of IRS-1/PI3K/Akt pathway. J Cell Biochem 2023; 124:1379-1390. [PMID: 37565526 DOI: 10.1002/jcb.30453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 07/11/2023] [Accepted: 07/19/2023] [Indexed: 08/12/2023]
Abstract
Numerous studies have revealed the profound impact of microRNAs on regulating skeletal muscle development and regeneration. However, the biological function and regulation mechanism of miR-222-3p in skeletal muscle remains largely unknown. In this study, miR-222-3p was found to be abundantly expressed in the impaired skeletal muscles, indicating that it might have function in the development and regeneration process of the skeletal muscle. MiR-222-3p overexpression impeded C2C12 myoblast proliferation and myogenic differentiation, whereas inhibition of miR-222-3p got the opposite results. The dual-luciferase reporter assay showed that insulin receptor substrate-1 (IRS-1) was the target gene of miR-222-3p. We next found that knockdown of IRS-1 could obviously suppress C2C12 myoblast proliferation and differentiation. Additionally, miR-222-3p-induced repression of myoblast proliferation and differentiation was verified to be associated with a decrease in phosphoinositide 3-kinase (PI3K)-Akt signaling. Overall, we demonstrated that miR-222-3p inhibited C2C12 cells myogenesis via IRS-1/PI3K/Akt pathway. Therefore, miR-222-3p may be used as a therapeutic target for alleviating muscle loss caused by inherited and nonhereditary diseases.
Collapse
Affiliation(s)
- Xiaofang Wei
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, Shanxi, P.R. China
| | - Juan Wang
- Department of Nephrology, Shanghai General Hosptial, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China
| | - Yaqin Sun
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, Shanxi, P.R. China
| | - Tong Zhao
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, Shanxi, P.R. China
| | - Xiaomao Luo
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, Shanxi, P.R. China
| | - Jiayin Lu
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, Shanxi, P.R. China
| | - Wei Hou
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, Shanxi, P.R. China
| | - Xiuju Yu
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, Shanxi, P.R. China
| | - Linli Xue
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, Shanxi, P.R. China
| | - Yi Yan
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, Shanxi, P.R. China
| | - Haidong Wang
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, Shanxi, P.R. China
| |
Collapse
|
2
|
Yang H, Tian X, Zhang L, Li W, Liu Q, Jiang W, Peng Q, Wang G, Lu X. Clinical and pathological features of immune-mediated necrotising myopathies in a single-centre muscle biopsy cohort. BMC Musculoskelet Disord 2022; 23:425. [PMID: 35524238 PMCID: PMC9074315 DOI: 10.1186/s12891-022-05372-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 04/25/2022] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE Immune-mediated necrotising myopathy (IMNM) is a subset of idiopathic inflammatory myopathies (IIM) characterized by significantly elevated creatine kinase level, muscle weakness and predominant muscle fibre necrosis in muscle biopsy. This study aimed to investigate the clinical and pathological characteristics of patients with IMNM in a single-centre muscle biopsy cohort. METHODS A total of 860 patients who had muscle biopsy reports in our centre from May 2008 to December 2017 were enrolled in this study. IMNM was diagnosed according to the 2018 European Neuromuscular Centre (ENMC) clinicopathological diagnostic criteria for IMNM. RESULTS The muscle biopsy cohort consisted of 531 patients with IIM (61.7%), 253 patients with non-IIM (29.4%), and 76 undiagnosed patients (8.8%). IIM cases were classified as IMNM (68[7.9%]), dermatomyositis (346[40.2%]), anti-synthetase syndrome (82[9.5%]), polymyositis (32[3.7%]), and sporadic inclusion body myositis (3[0.3%]). Limb girdle muscular dystrophy (LGMD) 2B and lipid storage myopathy (LSM) are the two most common non-IIM disorders in our muscle biopsy cohort. IMNM patients had a higher onset age (41.57 ± 14.45 vs 21.66 ± 7.86 and 24.56 ± 10.78, p < .0001), shorter duration (21.79 ± 26.01 vs 66.69 ± 67.67 and 24.56 ± 10.78, p < .0001), and more frequent dysphagia (35.3% vs. 3.4 and 6.3%, p = .001) than LGMD 2B and LSM patients. Muscle biopsy from IMNM showed more frequent muscle fibre necrosis (95.6% vs 72.4 and 56.3%, p < .0001), overexpression of major histocompatibility complex-I on sarcolemma (83.8% vs 37.9 and 12.9%, p < .0001), and CD4+ T cell endomysia infiltration (89.7% vs 53.6 and 50%, p < .0001) compared with those from LGMD 2B and LSM patients. CONCLUSIONS It is easy to distinguish IMNM from other IIM subtypes according to clinical symptoms and myositis specific antibodies profiles. However, distinguishing IMNM from disorders clinically similar to non-IIM needs combined clinical, serological and pathological features.
Collapse
Affiliation(s)
- Hongxia Yang
- China-Japan Friendship School of Clinical Medicine, Peking University, Beijing, 100029, China
- Department of Rheumatology, China-Japan Friendship Hospital, Yinghua East Road, Chaoyang District, Beijing, 100029, China
| | - Xiaolan Tian
- Department of Rheumatology, China-Japan Friendship Hospital, Yinghua East Road, Chaoyang District, Beijing, 100029, China
| | - Lining Zhang
- China-Japan Friendship School of Clinical Medicine, Peking University, Beijing, 100029, China
- Department of Rheumatology, China-Japan Friendship Hospital, Yinghua East Road, Chaoyang District, Beijing, 100029, China
| | - Wenli Li
- Department of Rheumatology, China-Japan Friendship Hospital, Yinghua East Road, Chaoyang District, Beijing, 100029, China
| | - Qingyan Liu
- Department of Rheumatology, China-Japan Friendship Hospital, Yinghua East Road, Chaoyang District, Beijing, 100029, China
| | - Wei Jiang
- Department of Rheumatology, China-Japan Friendship Hospital, Yinghua East Road, Chaoyang District, Beijing, 100029, China
| | - Qinglin Peng
- Department of Rheumatology, China-Japan Friendship Hospital, Yinghua East Road, Chaoyang District, Beijing, 100029, China
| | - Guochun Wang
- China-Japan Friendship School of Clinical Medicine, Peking University, Beijing, 100029, China.
- Department of Rheumatology, China-Japan Friendship Hospital, Yinghua East Road, Chaoyang District, Beijing, 100029, China.
| | - Xin Lu
- China-Japan Friendship School of Clinical Medicine, Peking University, Beijing, 100029, China.
- Department of Rheumatology, China-Japan Friendship Hospital, Yinghua East Road, Chaoyang District, Beijing, 100029, China.
| |
Collapse
|
3
|
Dang K, Jiang S, Gao Y, Qian A. The role of protein glycosylation in muscle diseases. Mol Biol Rep 2022; 49:8037-8049. [DOI: 10.1007/s11033-022-07334-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/23/2022] [Accepted: 03/02/2022] [Indexed: 12/14/2022]
|
4
|
Jiang K, Zheng Y, Lin J, Wu X, Yu Y, Zhu M, Fang X, Zhou M, Li X, Hong D. Diverse myopathological features in the congenital myasthenia syndrome with GFPT1 mutation. Brain Behav 2022; 12:e2469. [PMID: 34978387 PMCID: PMC8865156 DOI: 10.1002/brb3.2469] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 11/14/2021] [Accepted: 12/07/2021] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Mutations in the GFPT1 gene are associated with a particular subtype of congenital myasthenia syndrome (CMS) called limb-girdle myasthenia with tubular aggregates. However, not all patients show tubular aggregates in muscle biopsy, suggesting the diversity of myopathology should be further investigated. METHODS In this study, we reported two unrelated patients clinically characterized by easy fatigability, limb-girdle muscle weakness, positive decrements of repetitive stimulation, and response to pyridostigmine. The routine examinations of myopathology were conducted. The causative gene was explored by whole-exome screening. In addition, we summarized all GFPT1-related CMS patients with muscle biopsy in the literature. RESULTS Pathogenic biallelic GFPT1 mutations were identified in the two patients. In patient one, muscle biopsy indicated vacuolar myopathic changes and atypical pathological changes of myofibrillar myopathy characterized by desmin deposits, Z-disc disorganization, and electronic dense granulofilamentous aggregation. In patient two, muscle biopsy showed typical myopathy with tubular aggregates. Among the 51 reported GFPT1-related CMS patients with muscle biopsy, most of them showed tubular aggregates myopathy, while rimmed vacuolar myopathy, autophagic vacuolar myopathy, mitochondria-like myopathy, neurogenic myopathy, and unspecific myopathic changes were also observed in some patients. These extra-synaptic pathological changes might be associated with GFPT1-deficiency hypoglycosylation and altered function of muscle-specific glycoproteins, as well as partly responsible for the permanent muscle weakness and resistance to acetylcholinesterase inhibitor therapy. CONCLUSIONS Most patients with GFPT1-related CMS had tubular aggregates in the muscle biopsy, but some patients could show great diversities of the pathological change. The myopathological findings might be a biomarker to predict the prognosis of the disease.
Collapse
Affiliation(s)
- Kaiyan Jiang
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yilei Zheng
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jing Lin
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Department of Medical Genetics, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiaorong Wu
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yanyan Yu
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Min Zhu
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Department of Medical Genetics, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xin Fang
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Department of Medical Genetics, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Meihong Zhou
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiaobing Li
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Daojun Hong
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Department of Medical Genetics, The First Affiliated Hospital of Nanchang University, Nanchang, China
| |
Collapse
|
5
|
Mroczek M, Sanchez MG. Genetic modifiers and phenotypic variability in neuromuscular disorders. J Appl Genet 2020; 61:547-558. [PMID: 32918245 DOI: 10.1007/s13353-020-00580-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 08/31/2020] [Accepted: 09/06/2020] [Indexed: 12/13/2022]
Abstract
Neuromuscular disorders are mostly rare diseases with autosomal dominant, recessive, or X-linked inheritance. Interestingly, among patients carrying the same mutations, a range of phenotypic severity is reported. This phenotypic variability in neuromuscular disorders is still not fully understood. This review will focus on genetic modifiers and will briefly describe metabolic pathways, in which they are involved. Genetic modifiers are variants in the same or other genes that modulate the phenotype. Proteins encoded by genetic modifiers in neuromuscular diseases are taking part in different metabolic processes, most commonly in inflammation, growth and regeneration, endoplasmic reticulum metabolism, and cytoskeletal activities. Recent advances in omics technologies, development of computational algorithms, and establishing large international consortia intensified discovery sped up investigation of genetic modifiers. As more individuals affected by neuromuscular disorders are tested, it is often suggested that classic models of genetic causation cannot explain phenotypic variability. There is a growing interest in their discovery and identifying shared metabolic pathways can contribute to design targeted therapies. We provide an update on variants acting as genetic modifiers in neuromuscular disorders and strategies used for their discovery.
Collapse
Affiliation(s)
- Magdalena Mroczek
- John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Central Parkway, Newcastle upon Tyne, NE1 3BZ, UK.
| | - Maria Gabriela Sanchez
- Molecular Biology Department, Simon Bolivar University, Sartenejas Valley, Caracas, Venezuela
| |
Collapse
|
6
|
Zhang M, Lan D. [Research advances in limb-girdle muscular dystrophy type 2Q]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2019; 21:839-844. [PMID: 31416513 PMCID: PMC7389895 DOI: 10.7499/j.issn.1008-8830.2019.08.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 07/07/2019] [Indexed: 06/10/2023]
Abstract
Limb-girdle muscular dystrophy (LGMD) is a group of muscular dystrophies with predominantly proximal muscular weakness, and some genes associated with this disease have been identified at present. LGMD type 2Q (LGMD2Q) is a subtype of LGMD and is associated with PLEC gene mutation. Major phenotypes of PLEC gene mutation include epidermolysis bullosa with late-onset muscular dystrophy and epidermolysis bullosa with other lesions. LGMD2Q without skin lesions is rarely reported. This article reviews the pathogenic gene PLEC and clinical manifestations of LGMD2Q, so as to deepen the understanding of the pathogenic gene and phenotype of LGMD2Q.
Collapse
Affiliation(s)
- Min Zhang
- Department of Pediatrics, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China.
| | | |
Collapse
|