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Xie WQ, Men C, He M, Li YS, Lv S. The Effect of MicroRNA-Mediated Exercise on Delaying Sarcopenia in Elderly Individuals. Dose Response 2020; 18:1559325820974543. [PMID: 33293908 PMCID: PMC7705785 DOI: 10.1177/1559325820974543] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/30/2020] [Accepted: 10/27/2020] [Indexed: 11/24/2022] Open
Abstract
Sarcopenia is often regarded as an early sign of weakness and is the core element
of muscle weakness in elderly individuals. Sarcopenia is closely related to the
reduction of exercise, and elderly individuals often suffer from decreased
muscle mass and function due to a lack of exercise. At present, studies have
confirmed that resistance and aerobic exercise are related to muscle mass,
strength and fiber type and to the activation and proliferation of muscle stem
cells (MuSCs). Increasing evidence shows that microRNAs (miRNAs) play an
important role in exercise-related changes in the quantity, composition and
function of skeletal muscle. At the cellular level, miRNAs have been shown to
regulate the proliferation and differentiation of muscle cells. In addition,
miRNAs are related to the composition and transformation of muscle fibers and
involved in the transition of MuSCs from the resting state to the activated
state. Therefore, exercise may delay sarcopenia in elderly individuals by
regulating miRNAs in skeletal muscle. In future miRNA-focused treatment
strategies, these studies will provide valuable information for the formulation
of exercise methods and will provide useful and targeted exercise programs for
elderly individuals with sarcopenia.
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Affiliation(s)
- Wen-Qing Xie
- Deparment of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chen Men
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Miao He
- Deparment of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yu-Sheng Li
- Deparment of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shan Lv
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
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2
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Circ-HIPK3 plays an active role in regulating myoblast differentiation. Int J Biol Macromol 2020; 155:1432-1439. [DOI: 10.1016/j.ijbiomac.2019.11.119] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 11/11/2019] [Accepted: 11/13/2019] [Indexed: 01/19/2023]
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Antunes-Correa LM, Trevizan PF, Bacurau AVN, Ferreira-Santos L, Gomes JLP, Urias U, Oliveira PA, Alves MJNN, de Almeida DR, Brum PC, Oliveira EM, Hajjar L, Kalil Filho R, Negrão CE. Effects of aerobic and inspiratory training on skeletal muscle microRNA-1 and downstream-associated pathways in patients with heart failure. J Cachexia Sarcopenia Muscle 2020; 11:89-102. [PMID: 31743617 PMCID: PMC7015255 DOI: 10.1002/jcsm.12495] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 07/26/2019] [Accepted: 08/12/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The exercise intolerance in chronic heart failure with reduced ejection fraction (HFrEF) is mostly attributed to alterations in skeletal muscle. However, the mechanisms underlying the skeletal myopathy in patients with HFrEF are not completely understood. We hypothesized that (i) aerobic exercise training (AET) and inspiratory muscle training (IMT) would change skeletal muscle microRNA-1 expression and downstream-associated pathways in patients with HFrEF and (ii) AET and IMT would increase leg blood flow (LBF), functional capacity, and quality of life in these patients. METHODS Patients age 35 to 70 years, left ventricular ejection fraction (LVEF) ≤40%, New York Heart Association functional classes II-III, were randomized into control, IMT, and AET groups. Skeletal muscle changes were examined by vastus lateralis biopsy. LBF was measured by venous occlusion plethysmography, functional capacity by cardiopulmonary exercise test, and quality of life by Minnesota Living with Heart Failure Questionnaire. All patients were evaluated at baseline and after 4 months. RESULTS Thirty-three patients finished the study protocol: control (n = 10; LVEF = 25 ± 1%; six males), IMT (n = 11; LVEF = 31 ± 2%; three males), and AET (n = 12; LVEF = 26 ± 2%; seven males). AET, but not IMT, increased the expression of microRNA-1 (P = 0.02; percent changes = 53 ± 17%), decreased the expression of PTEN (P = 0.003; percent changes = -15 ± 0.03%), and tended to increase the p-AKTser473 /AKT ratio (P = 0.06). In addition, AET decreased HDAC4 expression (P = 0.03; percent changes = -40 ± 19%) and upregulated follistatin (P = 0.01; percent changes = 174 ± 58%), MEF2C (P = 0.05; percent changes = 34 ± 15%), and MyoD expression (P = 0.05; percent changes = 47 ± 18%). AET also increased muscle cross-sectional area (P = 0.01). AET and IMT increased LBF, functional capacity, and quality of life. Further analyses showed a significant correlation between percent changes in microRNA-1 and percent changes in follistatin mRNA (P = 0.001, rho = 0.58) and between percent changes in follistatin mRNA and percent changes in peak VO2 (P = 0.004, rho = 0.51). CONCLUSIONS AET upregulates microRNA-1 levels and decreases the protein expression of PTEN, which reduces the inhibitory action on the PI3K-AKT pathway that regulates the skeletal muscle tropism. The increased levels of microRNA-1 also decreased HDAC4 and increased MEF2c, MyoD, and follistatin expression, improving skeletal muscle regeneration. These changes associated with the increase in muscle cross-sectional area and LBF contribute to the attenuation in skeletal myopathy, and the improvement in functional capacity and quality of life in patients with HFrEF. IMT caused no changes in microRNA-1 and in the downstream-associated pathway. The increased functional capacity provoked by IMT seems to be associated with amelioration in the respiratory function instead of changes in skeletal muscle. ClinicalTrials.gov (Identifier: NCT01747395).
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Affiliation(s)
- Ligia M Antunes-Correa
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil.,School of Physical Education, University of Campinas (UNICAMP), Campinas, Brazil
| | - Patricia F Trevizan
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil
| | - Aline V N Bacurau
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | | | - João L P Gomes
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Ursula Urias
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Patricia A Oliveira
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil
| | | | - Dirceu R de Almeida
- Division of Cardiology, Department of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - Patricia C Brum
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Edilamar M Oliveira
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Ludhmila Hajjar
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil
| | - Roberto Kalil Filho
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil
| | - Carlos Eduardo Negrão
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil.,School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
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Fan RF, Cao CY, Chen MH, Shi QX, Xu SW. Gga-let-7f-3p promotes apoptosis in selenium deficiency-induced skeletal muscle by targeting selenoprotein K. Metallomics 2019; 10:941-952. [PMID: 29905752 DOI: 10.1039/c8mt00083b] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Selenoprotein K (SELENOK) is primarily observed in the endoplasmic reticulum, and serves to maintain the normal physiological functions of skeletal muscle. Skeletal muscle development and regeneration are associated with significant changes in the expression of specific microRNAs (miRNAs). Downregulated SELENOK expression is observed in chicken muscles deficient of Se. However, the mechanisms of miRNA regulation of SELENOK expression remain elusive. Here, deep sequencing was used to detect the miRNA profiles of muscle in Se deficient (-Se group) and normal (C group) chickens. A dual-luciferase reporter assay was adopted to verify the relationship between SELENOK and gga-let-7f-3p. In addition, gga-let-7f-3p was either overexpressed or knocked-down in chicken myoblasts. Furthermore, the cells were treated with N-acetyl-l-cysteine (NAC) or hydrogen peroxide (H2O2) in order to probe the factors involved in oxidative stress, endoplasmic reticulum stress (ERS) and apoptosis, respectively. Relative to the C group, there were 132 differentially expressed miRNAs (including 57 upregulated and 75 downregulated) in the muscles of the -Se group. The dual-luciferase reporter assay showed that SELENOK was a primary target of gga-let-7f-3p. It was also observed that the overexpression or knock-down of gga-let-7f-3p significantly influenced the SELENOK expression. Moreover, NAC blocked mimics of ga-let-7f-3p, thus inducing oxidative stress, ERS and apoptosis. Simultaneously, gga-let-7f-3p inhibitors blocked the stimulant effects caused by H2O2 in chicken myoblasts. Furthermore, Se deficiency downregulated the SELENOK protein expression and induced oxidative stress, ERS and apoptosis in chicken muscles. In conclusion, the gga-let-7f-3p-SELENOK pathway played a pivotal role in Se deficiency mediated muscle injuries through the induction of oxidative stress and ERS, ultimately promoting apoptosis.
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Affiliation(s)
- Rui-Feng Fan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China.
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Xi Y, Liu H, Zhao Y, Li J, Li W, Liu G, Lin J, Liu W, Zhang J, Lei M, Ni D. Comparative analyses of longissimus muscle miRNAomes reveal microRNAs associated with differential regulation of muscle fiber development between Tongcheng and Yorkshire pigs. PLoS One 2018; 13:e0200445. [PMID: 29995940 PMCID: PMC6040776 DOI: 10.1371/journal.pone.0200445] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 06/26/2018] [Indexed: 01/07/2023] Open
Abstract
Tongcheng (TC) and Yorkshire (YK) are two pig breeds with distinctive muscle morphology. Porcine microRNAome (miRNAome) of the longissimus muscle during five developmental stages (40, 55, 63, 70, and 90 days post coitum (dpc)) was explored by Solexa sequencing in the present study to find miRNAs involved in the different regulation of skeletal muscle development between the two breeds. A total of 320 known porcine miRNAs, 64 miRNAs corresponding to other mammals, and 224 potentially novel miRNAs were identified. Principal component analysis (PCA) and hierarchical cluster analysis (HCA) suggested that the factor “pig breed” affected the miRNA expression profiles to a lesser extent than the factor “developmental stage”. Fifty-seven miRNAs were differentially expressed (DE) between the neighbor developmental stages in TC and 45 such miRNAs were found in YK, 34 in common; there were more down-regulated stage-DE miRNAs than up-regulated. And a total of 23, 30, 12, 6, and 30 breed-DE miRNAs between TC and YK were identified at 40, 55, 63, 70, and 90 dpc, respectively, which were mainly involved in cellular protein modification process, protein transport, and metabolic process. As the only highly expressed breed-DE miRNA found in no less than four developmental stages, and also a stage-DE miRNA found both in TC and YK, miR-499-5p could bind the 3’-UTR of a myofibrillogenesis regulator, destrin/actin depolymerizing factor (DSTN), as validated in dual luciferase reporter assay. The results suggested that miR-499-5p possibly play a noteworthy role in the breed-distinctive porcine muscle fiber development associated with the regulation of DSTN.
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Affiliation(s)
- Yu Xi
- Key Laboratory of Agricultural Animal Genetics, Breeding, and Reproduction, Ministry of Education and Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, P.R. China
| | - Huijing Liu
- Key Laboratory of Agricultural Animal Genetics, Breeding, and Reproduction, Ministry of Education and Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, P.R. China
| | - Yuqiang Zhao
- Key Laboratory of Agricultural Animal Genetics, Breeding, and Reproduction, Ministry of Education and Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, P.R. China
| | - Ji Li
- Key Laboratory of Agricultural Animal Genetics, Breeding, and Reproduction, Ministry of Education and Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, P.R. China
| | - Wenchao Li
- Key Laboratory of Agricultural Animal Genetics, Breeding, and Reproduction, Ministry of Education and Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, P.R. China
| | - Guorong Liu
- Key Laboratory of Agricultural Animal Genetics, Breeding, and Reproduction, Ministry of Education and Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, P.R. China
| | - Jiayong Lin
- Key Laboratory of Agricultural Animal Genetics, Breeding, and Reproduction, Ministry of Education and Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, P.R. China
| | - Wanghong Liu
- Swine Breeding Quality Supervision and Inspection Center of the Ministry of Agriculture (Wuhan), Huazhong Agricultural University, Wuhan, P.R. China
| | - Jinlong Zhang
- Key Laboratory of Agricultural Animal Genetics, Breeding, and Reproduction, Ministry of Education and Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, P.R. China
| | - Minggang Lei
- Key Laboratory of Agricultural Animal Genetics, Breeding, and Reproduction, Ministry of Education and Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, P.R. China
- Swine Breeding Quality Supervision and Inspection Center of the Ministry of Agriculture (Wuhan), Huazhong Agricultural University, Wuhan, P.R. China
- National Engineering Research Center For Livestock, Huazhong Agricultural University, Wuhan, P.R. China
- * E-mail: (ML); (DN)
| | - Debin Ni
- Swine Breeding Quality Supervision and Inspection Center of the Ministry of Agriculture (Wuhan), Huazhong Agricultural University, Wuhan, P.R. China
- * E-mail: (ML); (DN)
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Wang J, Tan J, Qi Q, Yang L, Wang Y, Zhang C, Hu L, Chen H, Fang X. miR-487b-3p Suppresses the Proliferation and Differentiation of Myoblasts by Targeting IRS1 in Skeletal Muscle Myogenesis. Int J Biol Sci 2018; 14:760-774. [PMID: 29910686 PMCID: PMC6001677 DOI: 10.7150/ijbs.25052] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 03/29/2018] [Indexed: 12/21/2022] Open
Abstract
MicroRNAs are endogenous, small non-coding RNAs that can play critical gene-regulatory roles during skeletal muscle development and are highly conserved. miR-487b-3p is expressed in muscle, and the detailed mechanism by which it regulates myoblast proliferation and differentiation has not been explored. Here, we found that miR-487b-3p expression was significantly higher in goat muscle tissues than in other tissues and was higher in fetal goat muscle tissues than in mature goat tissues, suggesting that miR-487b-3p has an important effect on skeletal muscle myogenesis. Functional studies showed that miR-487b-3p overexpression significantly suppressed C2C12 myoblast proliferation and differentiation, which was accompanied by the down-regulation of functional genes related to proliferation (MyoD, Pax7 and PCNA) and differentiation (Myf5, MyoG and Mef2c), whereas the inhibition of miR-487b-3p accelerated C2C12 myoblast proliferation and differentiation and was accompanied by the up-regulation of functional genes. Using Target-Scan and David, we found that miR-487b-3p targeted the 3'-UTR of IRS1, an essential regulator in the PI3K/Akt and MAPK/Erk pathways. We then confirmed the targeting of IRS1 by miR-487b-3p using dual-luciferase assays, RT-qPCR and western blotting. Furthermore, IRS1 silencing markedly inhibited proliferation and differentiation in cultured C2C12 myoblasts, confirming the important role of IRS1 in myogenesis. These results reveal an IRS1-mediated regulatory link between miR-487b-3p and the PI3K/Akt and MAPK/Erk pathways during skeletal muscle myogenesis.
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Affiliation(s)
- Jian Wang
- Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - Jiaoyan Tan
- Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - Qi Qi
- Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - Lingzhi Yang
- Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - Yanhong Wang
- Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - Chunlei Zhang
- Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - Linyong Hu
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, 810001, China
| | - Hong Chen
- Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - Xingtang Fang
- Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
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Wei X, Li H, Zhang B, Li C, Dong D, Lan X, Huang Y, Bai Y, Lin F, Zhao X, Chen H. miR-378a-3p promotes differentiation and inhibits proliferation of myoblasts by targeting HDAC4 in skeletal muscle development. RNA Biol 2016; 13:1300-1309. [PMID: 27661135 DOI: 10.1080/15476286.2016.1239008] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Muscle development, or myogenesis, is a highly regulated, complex process. A subset of microRNAs (miRNAs) have been identified as critical regulators of myogenesis. Recently, miR-378a was found to be involved in myogenesis, but the mechanism of how miR-378a regulates the proliferation and differentiation of myoblasts has not been determined. We found that miR-378a-3p expression in muscle was significantly higher than in other tissues, suggesting an important effect on muscle development. Overexpression of miR-378a-3p increased the expression of MyoD and MHC in C2C12 myoblasts both at the level of mRNA and protein, confirming that miR-378a-3p promoted muscle cell differentiation. The forced expression of miR-378a-3p promoted apoptosis of C2C12 cells as evidenced by CCK-8 assay and Annexin V-FITC/PI staining results. Through TargetScan, histone acetylation enzyme 4 (HDAC4) was identified as a potential target of miR-378a-3p. We confirmed targeting of HDAC4 by miR-378a-3p using a dual luciferase assay and western blotting. Our RNAi analysis results also showed that HDAC4 significantly promoted differentiation of C2C12 cells and inhibited cell survival through Bcl-2. Therefore, we conclude that miR-378a-3p regulates skeletal muscle growth and promotes the differentiation of myoblasts through the post-transcriptional down-regulation of HDAC4.
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Affiliation(s)
- Xuefeng Wei
- a Shaanxi Key Laboratory of Agricultural Molecular Biology, College of Animal Science and Technology, Northwest A&F University , Yangling , Shaanxi , China
| | - Hui Li
- a Shaanxi Key Laboratory of Agricultural Molecular Biology, College of Animal Science and Technology, Northwest A&F University , Yangling , Shaanxi , China
| | - Bowen Zhang
- a Shaanxi Key Laboratory of Agricultural Molecular Biology, College of Animal Science and Technology, Northwest A&F University , Yangling , Shaanxi , China
| | - Caixia Li
- a Shaanxi Key Laboratory of Agricultural Molecular Biology, College of Animal Science and Technology, Northwest A&F University , Yangling , Shaanxi , China
| | - Dong Dong
- a Shaanxi Key Laboratory of Agricultural Molecular Biology, College of Animal Science and Technology, Northwest A&F University , Yangling , Shaanxi , China
| | - Xianyong Lan
- a Shaanxi Key Laboratory of Agricultural Molecular Biology, College of Animal Science and Technology, Northwest A&F University , Yangling , Shaanxi , China
| | - Yongzhen Huang
- a Shaanxi Key Laboratory of Agricultural Molecular Biology, College of Animal Science and Technology, Northwest A&F University , Yangling , Shaanxi , China
| | - Yueyu Bai
- b Animal Health Supervision in Henan Province , Zhengzhou , Henan , China
| | - Fengpeng Lin
- c Bureau of Animal Husbandry of Biyang County , Biyang , Henan , China
| | - Xue Zhao
- d Bureau of Animal Husbandry of Suibin County , Suibin , Heilongjiang , China
| | - Hong Chen
- a Shaanxi Key Laboratory of Agricultural Molecular Biology, College of Animal Science and Technology, Northwest A&F University , Yangling , Shaanxi , China
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