101
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Zhang Y, Liu X, Zhang L, Li X, Zhou Z, Jiao L, Shao Y, Li M, Leng B, Zhou Y, Liu T, Liu Q, Shan H, Du Z. Metformin Protects against H 2O 2-Induced Cardiomyocyte Injury by Inhibiting the miR-1a-3p/GRP94 Pathway. MOLECULAR THERAPY. NUCLEIC ACIDS 2018; 13:189-197. [PMID: 30292140 PMCID: PMC6172474 DOI: 10.1016/j.omtn.2018.09.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 08/30/2018] [Accepted: 09/02/2018] [Indexed: 01/30/2023]
Abstract
Ischemia-reperfusion (I/R) injury is a major side effect of the reperfusion treatment of the ischemic heart. Few therapies are available for the effective prevention of this injury caused by the oxidative stress-induced cardiomyocyte apoptosis. Metformin was shown to have a potential cardiac protective effect and ability to reduce cardiac events, but the exact mechanism remains unclear. Here, we aimed to confirm and investigate the mechanisms underlying potential metformin activity against I/R injury in response to oxidative stress. We determined that the expression of miR-1a-3p was significantly increased in neonatal rat ventricular cells (NRVCs), which were exposed to H2O2in vitro and in the hearts of mice that underwent the I/R injury. MiR-1a-3p was shown to target the 3′ UTR of GRP94, which results in the accumulation of un- or misfolded proteins, leading to the endoplasmic reticulum (ER) stress. The obtained results demonstrated that C/EBP β directly induces the upregulation of miR-1a-3p by binding to its promoter. Furthermore, as a direct allosteric AMPK activator, metformin was shown to activate AMPK and significantly reduce C/EBP β and miR-1a-3p levels compared with those in the control group. In conclusion, metformin protects cardiomyocytes against H2O2 damage through the AMPK/C/EBP β/miR-1a-3p/GRP94 pathway, which indicates that metformin may be applied for the treatment of I/R injury.
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Affiliation(s)
- Ying Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Xue Liu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Lu Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Xuelian Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Zhongqiu Zhou
- Institute of Clinical Pharmacy, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Lei Jiao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Yingchun Shao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Mengmeng Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Bing Leng
- Pharmacy Intravenous Admixture Service, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Yuhong Zhou
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Tianyi Liu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China; Department of Pharmaceutics, Dalian Children's Hospital, Dalian, Liaoning 116001, P.R. China
| | - Qiushuang Liu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Hongli Shan
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China.
| | - Zhimin Du
- Institute of Clinical Pharmacy, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China.
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102
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Liu S, Chen H, Ronquist S, Seaman L, Ceglia N, Meixner W, Chen PY, Higgins G, Baldi P, Smale S, Hero A, Muir LA, Rajapakse I. Genome Architecture Mediates Transcriptional Control of Human Myogenic Reprogramming. iScience 2018; 6:232-246. [PMID: 30240614 PMCID: PMC6137960 DOI: 10.1016/j.isci.2018.08.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 06/23/2018] [Accepted: 07/31/2018] [Indexed: 12/21/2022] Open
Abstract
Genome architecture has emerged as a critical element of transcriptional regulation, although its role in the control of cell identity is not well understood. Here we use transcription factor (TF)-mediated reprogramming to examine the interplay between genome architecture and transcriptional programs that transition cells into the myogenic identity. We recently developed new methods for evaluating the topological features of genome architecture based on network centrality. Through integrated analysis of these features of genome architecture and transcriptome dynamics during myogenic reprogramming of human fibroblasts we find that significant architectural reorganization precedes activation of a myogenic transcriptional program. This interplay sets the stage for a critical transition observed at several genomic scales reflecting definitive adoption of the myogenic phenotype. Subsequently, TFs within the myogenic transcriptional program participate in entrainment of biological rhythms. These findings reveal a role for topological features of genome architecture in the initiation of transcriptional programs during TF-mediated human cellular reprogramming. 4D Nucleome analysis of direct human fibroblast to muscle reprogramming A space-time bifurcation marks transit to a new cell identity Chromatin reorganization precedes significant transcriptional changes Myogenic master regulators have a role in entraining biological rhythms
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Affiliation(s)
- Sijia Liu
- Department of Computational Medicine & Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA; Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109, USA
| | - Haiming Chen
- Department of Computational Medicine & Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA
| | - Scott Ronquist
- Department of Computational Medicine & Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA
| | - Laura Seaman
- Department of Computational Medicine & Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA
| | - Nicholas Ceglia
- Department of Computer Science, University of California-Irvine, Irvine, CA 92697, USA
| | - Walter Meixner
- Department of Computational Medicine & Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA
| | - Pin-Yu Chen
- AI Foundations, IBM T. J. Watson Research Center, Yorktown Heights, NY 10598, USA
| | - Gerald Higgins
- Department of Computational Medicine & Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA
| | - Pierre Baldi
- Department of Computer Science, University of California-Irvine, Irvine, CA 92697, USA
| | - Steve Smale
- Department of Mathematics, City University of Hong Kong, Hong Kong 999077, China; Department of Mathematics, University of California, Berkeley, CA 94720, USA
| | - Alfred Hero
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109, USA
| | - Lindsey A Muir
- Department of Computational Medicine & Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA
| | - Indika Rajapakse
- Department of Computational Medicine & Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA; Department of Mathematics, University of Michigan, Ann Arbor, MI 48109, USA.
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103
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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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104
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Hepatocyte Growth Factor Regulates the miR-206-HDAC4 Cascade to Control Neurogenic Muscle Atrophy following Surgical Denervation in Mice. MOLECULAR THERAPY-NUCLEIC ACIDS 2018; 12:568-577. [PMID: 30195792 PMCID: PMC6077135 DOI: 10.1016/j.omtn.2018.06.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 06/25/2018] [Accepted: 06/25/2018] [Indexed: 12/29/2022]
Abstract
Hepatocyte growth factor (HGF) has been well characterized for its roles in the migration of muscle progenitors during embryogenesis and the differentiation of muscle stem cells, but its function in adult neurogenic muscle atrophic conditions is poorly understood. Here we investigated whether HGF/c-met signaling has any effects on muscle-atrophic conditions. It was found that HGF expression was upregulated in skeletal muscle tissue following surgical denervation and in hSOD1-G93A transgenic mice showing severe muscle loss. Pharmacological inhibition of the c-met receptor decreased the expression level of pri-miR-206, enhanced that of HDAC4 and atrogenes, and resulted in increased muscle atrophy. In C2C12 cells, HGF inhibited phosphorylation of Smad3 and relieved TGF-β-mediated suppression of miR-206 expression via JNK. When extra HGF was exogenously provided through intramuscular injection of plasmid DNA expressing HGF, the extent of muscle atrophy was reduced, and the levels of all affected biochemical markers were changed accordingly, including those of primary and mature miR-206, HDAC4, and various atrogenes. Taken together, our finding suggested that HGF might play an important role in regard to neurogenic muscle atrophy and that HGF might be used as a platform to develop therapeutic agents for neuromuscular disorders.
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105
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MiR-133b targets Sox9 to control pathogenesis and metastasis of breast cancer. Cell Death Dis 2018; 9:752. [PMID: 29970901 PMCID: PMC6030174 DOI: 10.1038/s41419-018-0715-6] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 04/28/2018] [Accepted: 05/09/2018] [Indexed: 02/07/2023]
Abstract
The miR-133b, a commonly recognized muscle-specific miRNA, was reported to be deregulated in many kinds of cancers. However, its potential roles in tumorigenesis remain greatly elusive. Herein, we demonstrate that miR-133b is significantly suppressed in human breast cancer specimens, which is reversely correlated to histological grade of the cancer. Ectopic expression of miR-133b suppresses clonogenic ability and metastasis-relevant traits in vitro, as well as carcinogenesis and pulmonary metastasis in vivo. Further studies have identified Sox9, c-MET, and WAVE2 as direct targets of miR-133b, in which Sox9 contributes to all miR-133b-endowed effects including cell proliferation, colony formation, as well as cell migration and invasion in vitro. Moreover, re-expression of Sox9 reverses miR-133b-mediated metastasis suppression in vivo. Taken together, these findings highlight an important role for miR-133b in the regulation of tumorigenesis and metastatic potential of breast cancer and suggest a potential application of miR-133b in cancer treatment.
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106
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mir-127-3p inhibits the proliferation of myocytes by targeting KMT5a. Biochem Biophys Res Commun 2018; 503:970-976. [PMID: 29932923 DOI: 10.1016/j.bbrc.2018.06.104] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Accepted: 06/19/2018] [Indexed: 01/06/2023]
Abstract
MicroRNAs are a class of highly conserved ∼20 nucleotides non-coding RNAs that post-transcriptionally regulate gene expression. Many miRNAs were studied in the development of skeletal muscle, such as miR-1, miR-206, and miR-133. In our previous study, miR-127-3p was found highly expressed in porcine fetal skeletal muscle, whereas the detailed functions of miR-127-3p in muscle development is still unclear. In this study, we detected that miR-127-3p also highly expressed in skeletal muscle, cardiac muscle of adult mice and proliferative C2C12 cell lines. Overexpression of miR-127-3p almost has no effects on differentiation of C2C12 cell lines. However, miR-127-3p significantly inhibited the cell proliferation of C2C12 cells. Moreover, we identified KMT5a as a target gene that was down-regulated in both mRNA and protein level when miR-127-3p mimics were introduced. Furthermore, KMT5a overexpression in miR-127-3p treated cells rescued the influence of miR-127-3p on C2C12 proliferation. In brief, our data reveals that miR-127-3p regulates the proliferation of myocytes through KMT5a.
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107
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Mok GF, Lozano-Velasco E, Maniou E, Viaut C, Moxon S, Wheeler G, Münsterberg A. miR-133-mediated regulation of the Hedgehog pathway orchestrates embryo myogenesis. Development 2018; 145:dev.159657. [PMID: 29802149 PMCID: PMC6031409 DOI: 10.1242/dev.159657] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 05/10/2018] [Indexed: 12/23/2022]
Abstract
Skeletal myogenesis serves as a paradigm to investigate the molecular mechanisms underlying exquisitely regulated cell fate decisions in developing embryos. The evolutionarily conserved miR-133 family of microRNAs is expressed in the myogenic lineage, but how it acts remains incompletely understood. Here, we performed genome-wide differential transcriptomics of miR-133 knockdown (KD) embryonic somites, the source of vertebrate skeletal muscle. These analyses, performed in chick embryos, revealed extensive downregulation of Sonic hedgehog (Shh) pathway components: patched receptors, Hedgehog interacting protein and the transcriptional activator Gli1. By contrast, Gli3, a transcriptional repressor, was de-repressed and confirmed as a direct miR-133 target. Phenotypically, miR-133 KD impaired myotome formation and growth by disrupting proliferation, extracellular matrix deposition and epithelialization. Together, these observations suggest that miR-133-mediated Gli3 silencing is crucial for embryonic myogenesis. Consistent with this idea, we found that activation of Shh signalling by either purmorphamine, or KD of Gli3 by antisense morpholino, rescued the miR-133 KD phenotype. Thus, we identify a novel Shh/myogenic regulatory factor/miR-133/Gli3 axis that connects epithelial morphogenesis with myogenic fate specification. Summary: Here, using chick embryos, we showed that post-transcriptional silencing of the Gli3 repressor by miR-133 is required to stably establish the myogenic programme in early somites.
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Affiliation(s)
- Gi Fay Mok
- School of Biological Sciences, Cell and Developmental Biology, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
| | - Estefania Lozano-Velasco
- School of Biological Sciences, Cell and Developmental Biology, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
| | - Eirini Maniou
- School of Biological Sciences, Cell and Developmental Biology, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
| | - Camille Viaut
- School of Biological Sciences, Cell and Developmental Biology, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
| | - Simon Moxon
- The Earlham Institute, Norwich Research Park, Colney Lane, Norwich NR4 7UH, UK
| | - Grant Wheeler
- School of Biological Sciences, Cell and Developmental Biology, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
| | - Andrea Münsterberg
- School of Biological Sciences, Cell and Developmental Biology, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
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108
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Latimer MN, Cleveland BM, Biga PR. Dietary methionine restriction: Effects on glucose tolerance, lipid content and micro-RNA composition in the muscle of rainbow trout. Comp Biochem Physiol C Toxicol Pharmacol 2018; 208:47-52. [PMID: 29100953 PMCID: PMC5930159 DOI: 10.1016/j.cbpc.2017.10.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 10/27/2017] [Accepted: 10/27/2017] [Indexed: 12/24/2022]
Abstract
Lean muscle mass plays an important role in overall health, as altered skeletal muscle metabolism can impact both the incidence and prevention of conditions related to metabolic health. Intriguingly, dietary methionine restriction (MR) has been shown to ameliorate this phenotype over time potentially through mechanisms related to changes in myogenic precursor cell (MPC) differentiation status. Recently the role of micro-RNAs (miRs) in regulating the expression of muscle specific transcription factors myoD and myogenin as well as signaling molecules involved in skeletal muscle differentiation has been reported in vitro. We performed an 8week feeding trial to determine if MR in vivo could alter miR abundance as well as change metabolic markers. Results show changes in muscle miR abundance for miR-133a at 4weeks with no significant difference seen in miR-210 or miR-206. After 8weeks of MR feeding fish demonstrated increased clearance of glucose, increased fat accumulation in the liver, and decreased fat accumulation in the muscle. These data demonstrate conservation of MR effects on fish metabolism, and suggest, for the first time, that miR-133a might play a role in tissue response to MR.
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Affiliation(s)
- M N Latimer
- University of Alabama Birmingham, Department of Biology, 1300 University Blvd-Campbell Hall 464, United States
| | - B M Cleveland
- United States Department of Agriculture Research Service, National Center for Cool and Cold Water Aquaculture, Kearneysville, West Virginia, United States
| | - P R Biga
- University of Alabama Birmingham, Department of Biology, 1300 University Blvd-Campbell Hall 464, United States.
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109
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cAMP-inducible coactivator CRTC3 attenuates brown adipose tissue thermogenesis. Proc Natl Acad Sci U S A 2018; 115:E5289-E5297. [PMID: 29784793 DOI: 10.1073/pnas.1805257115] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
In response to cold exposure, placental mammals maintain body temperature by increasing sympathetic nerve activity in brown adipose tissue (BAT). Triggering of β-adrenergic receptors on brown adipocytes stimulates thermogenesis via induction of the cAMP/PKA pathway. Although cAMP response element-binding protein (CREB) and its coactivators-the cAMP-regulated transcriptional coactivators (CRTCs)-mediate transcriptional effects of cAMP in most tissues, other transcription factors such as ATF2 appear critical for induction of thermogenic genes by cAMP in BAT. Brown adipocytes arise from Myf5-positive mesenchymal cells under the control of PRDM16, a coactivator that concurrently represses differentiation along the skeletal muscle lineage. Here, we show that the CREB coactivator CRTC3 is part of an inhibitory feedback pathway that antagonizes PRDM16-dependent differentiation. Mice with a knockout of CRTC3 in BAT (BKO) have increased cold tolerance and reduced adiposity, whereas mice overexpressing constitutively active CRTC3 in adipose tissue are more cold sensitive and have greater fat mass. CRTC3 reduced sympathetic nerve activity in BAT by up-regulating the expression of miR-206, a microRNA that promotes differentiation along the myogenic lineage and that we show here decreases the expression of VEGFA and neurotrophins critical for BAT innervation and vascularization. Sympathetic nerve activity to BAT was enhanced in BKO mice, leading to increases in catecholamine signaling that stimulated energy expenditure. As reexpression of miR-206 in BAT from BKO mice reversed the salutary effects of CRTC3 depletion on cold tolerance, our studies suggest that small-molecule inhibitors against this coactivator may provide therapeutic benefit to overweight individuals.
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110
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Ultimo S, Zauli G, Martelli AM, Vitale M, McCubrey JA, Capitani S, Neri LM. Influence of physical exercise on microRNAs in skeletal muscle regeneration, aging and diseases. Oncotarget 2018; 9:17220-17237. [PMID: 29682218 PMCID: PMC5908319 DOI: 10.18632/oncotarget.24991] [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: 12/21/2017] [Accepted: 03/06/2018] [Indexed: 12/21/2022] Open
Abstract
Skeletal muscle is a dynamic tissue with remarkable plasticity and its growth and regeneration are highly organized, with the activation of specific transcription factors, proliferative pathways and cytokines. The decline of skeletal muscle tissue with age, is one of the most important causes of functional loss of independence in older adults. Maintaining skeletal muscle function throughout the lifespan is a prerequisite for good health and independent living. Physical activity represents one of the most effective preventive agents for muscle decay in aging. Several studies have underlined the importance of microRNAs (miRNAs) in the control of myogenesis and of skeletal muscle regeneration and function. In this review, we reported an overview and recent advances about the role of miRNAs expressed in the skeletal muscle, miRNAs regulation by exercise in skeletal muscle, the consequences of different physical exercise training modalities in the skeletal muscle miRNA profile, their regulation under pathological conditions and the role of miRNAs in age-related muscle wasting. Specific miRNAs appear to be involved in response to different types of exercise and therefore to play an important role in muscle fiber identity and myofiber gene expression in adults and elder population. Understanding the roles and regulation of skeletal muscle miRNAs during muscle regeneration may result in new therapeutic approaches in aging or diseases with impaired muscle function or re-growth.
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Affiliation(s)
- Simona Ultimo
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Giorgio Zauli
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Alberto M Martelli
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Marco Vitale
- Department of Medicine and Surgery, University of Parma, Parma, Italy.,CoreLab, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - James A McCubrey
- Department of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, USA
| | - Silvano Capitani
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Luca M Neri
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
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111
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Ghosh N, Katare R. Molecular mechanism of diabetic cardiomyopathy and modulation of microRNA function by synthetic oligonucleotides. Cardiovasc Diabetol 2018; 17:43. [PMID: 29566757 PMCID: PMC5863891 DOI: 10.1186/s12933-018-0684-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 03/10/2018] [Indexed: 02/06/2023] Open
Abstract
Diabetic cardiomyopathy (DCM) is a chronic complication in individuals with diabetes and is characterized by ventricular dilation and hypertrophy, diastolic dysfunction, decreased or preserved systolic function and reduced ejection fraction eventually resulting in heart failure. Despite being well characterized, the fundamental mechanisms leading to DCM are still elusive. Recent studies identified the involvement of small non-coding small RNA molecules such as microRNAs (miRs) playing a key role in the etiology of DCM. Therefore, miRs associated with DCM represents a new class of targets for the development of mechanistic therapeutics, which may yield marked benefits compared to other therapeutic approaches. Indeed, few miRs currently under active clinical investigation, with many expressing cautious optimism that miRs based therapies will succeed in the coming years. The major caution in using miRs based therapy is the need to improve the stability and specificity following systemic injection, which can be achieved through chemical and structural modification. In this review, we first discuss the established role of miRs in DCM and the advances in miRs based therapeutic strategies for the prevention/treatment of DCM. We next discuss the currently employed chemical modification of miR oligonucleotides and their utility in therapies specifically focusing on the DCM. Finally, we summarize the commonly used delivery system and approaches for assessment of miRNA modulation and potential off-target effects.
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Affiliation(s)
- Nilanjan Ghosh
- Department of Physiology-HeartOtago, University of Otago, 270, Great King Street, Dunedin, 9010 New Zealand
| | - Rajesh Katare
- Department of Physiology-HeartOtago, University of Otago, 270, Great King Street, Dunedin, 9010 New Zealand
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112
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Abstract
Skeletal muscle satellite cells are quiescent adult resident stem cells that activate, proliferate and differentiate to generate myofibres following injury. They harbour a robust proliferation potential and self-renewing capacity enabling lifelong muscle regeneration. Although several classes of microRNAs were shown to regulate adult myogenesis, systematic examination of stage-specific microRNAs during lineage progression from the quiescent state is lacking. Here we provide a genome-wide assessment of the expression of small RNAs during the quiescence/activation transition and differentiation by RNA-sequencing. We show that the majority of small RNAs present in quiescent, activated and differentiated muscle cells belong to the microRNA class. Furthermore, by comparing expression in distinct cell states, we report a massive and dynamic regulation of microRNAs, both in numbers and amplitude, highlighting their pivotal role in regulation of quiescence, activation and differentiation. We also identify a number of microRNAs with reliable and specific expression in quiescence including several maternally-expressed miRNAs generated at the imprinted Dlk1-Dio3 locus. Unexpectedly, the majority of class-switching miRNAs are associated with the quiescence/activation transition suggesting a poised program that is actively repressed. These data constitute a key resource for functional analyses of miRNAs in skeletal myogenesis, and more broadly, in the regulation of stem cell self-renewal and tissue homeostasis.
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113
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Siracusa J, Koulmann N, Banzet S. Circulating myomiRs: a new class of biomarkers to monitor skeletal muscle in physiology and medicine. J Cachexia Sarcopenia Muscle 2018; 9:20-27. [PMID: 29193905 PMCID: PMC5803618 DOI: 10.1002/jcsm.12227] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 05/13/2017] [Accepted: 07/05/2017] [Indexed: 12/29/2022] Open
Abstract
MicroRNAs (miRNA) are small non-coding RNAs that target mRNAs and are consequently involved in the post-transcriptional regulation of gene expression. Some miRNAs are ubiquitously expressed in tissue, while others are tissue-specific or tissue-enriched. miRNAs can be released by cells and are found in various biofluids, including serum and plasma. Thus, measuring miRNAs in the circulation may provide information on the originating tissue or cells. MyomiRs are described as striated muscle-specific or muscle-enriched miRNAs. Their circulating levels can be measured and have been proposed to be new biomarkers of physiological and pathological muscle processes. The aims of this review are to summarize the current knowledge of circulating myomiRs, to identify the types of information they can provide about skeletal muscle, and to determine how to apply that information in the fields of research and medicine.
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Affiliation(s)
- Julien Siracusa
- Institut de Recherche Biomédicale des Armées, 1 place Valérie André, BP73, 91220, Brétigny sur Orge, France
| | - Nathalie Koulmann
- Institut de Recherche Biomédicale des Armées, 1 place Valérie André, BP73, 91220, Brétigny sur Orge, France.,Ecole du Val de Grâce, 1 place Alphonse Laveran, 75005, Paris, France
| | - Sébastien Banzet
- Ecole du Val de Grâce, 1 place Alphonse Laveran, 75005, Paris, France.,Institut de Recherche Biomédicale des Armées, 1 Rue Lieutenant Raoul Batany, 92140, Clamart, France.,INSERM UMRS1197, 1 Rue Lieutenant Raoul Batany, 92140, Clamart, France
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114
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Bem J, Grabowska I, Daniszewski M, Zawada D, Czerwinska AM, Bugajski L, Piwocka K, Fogtman A, Ciemerych MA. Transient MicroRNA Expression Enhances Myogenic Potential of Mouse Embryonic Stem Cells. Stem Cells 2018; 36:655-670. [PMID: 29314416 DOI: 10.1002/stem.2772] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 12/07/2017] [Accepted: 12/27/2017] [Indexed: 02/06/2023]
Abstract
MicroRNAs (miRNAs) are known regulators of various cellular processes, including pluripotency and differentiation of embryonic stem cells (ESCs). We analyzed differentiation of two ESC lines-D3 and B8, and observed significant differences in the expression of miRNAs and genes involved in pluripotency and differentiation. We also examined if transient miRNA overexpression could serve as a sufficient impulse modulating differentiation of mouse ESCs. ESCs were transfected with miRNA Mimics and differentiated in embryoid bodies and embryoid body outgrowths. miRNAs involved in differentiation of mesodermal lineages, such as miR145 and miR181, as well as miRNAs regulating myogenesis (MyomiRs)-miR1, miR133a, miR133b, and miR206 were tested. Using such approach, we proved that transient overexpression of molecules selected by us modulated differentiation of mouse ESCs. Increase in miR145 levels upregulated Pax3, Pax7, Myod1, Myog, and MyHC2, while miR181 triggered the expression of such crucial myogenic factors as Myf5 and MyHC2. As a result, the ability of ESCs to initiate myogenic differentiation and form myotubes was enhanced. Premature expression of MyomiRs had, however, an adverse effect on myogenic differentiation of ESCs. Stem Cells 2018;36:655-670.
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Affiliation(s)
- Joanna Bem
- Department of Cytology, Institute of Zoology, Faculty of Biology, University of Warsaw, Poland
| | - Iwona Grabowska
- Department of Cytology, Institute of Zoology, Faculty of Biology, University of Warsaw, Poland
| | - Maciej Daniszewski
- Department of Cytology, Institute of Zoology, Faculty of Biology, University of Warsaw, Poland
| | - Dorota Zawada
- Department of Cytology, Institute of Zoology, Faculty of Biology, University of Warsaw, Poland
| | - Areta M Czerwinska
- Department of Cytology, Institute of Zoology, Faculty of Biology, University of Warsaw, Poland
| | - Lukasz Bugajski
- Laboratory of Cytometry, Nencki Institute of Experimental Biology
| | | | - Anna Fogtman
- Laboratory of Microarray Analysis, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Maria A Ciemerych
- Department of Cytology, Institute of Zoology, Faculty of Biology, University of Warsaw, Poland
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115
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Czimmerer Z, Horvath A, Daniel B, Nagy G, Cuaranta-Monroy I, Kiss M, Kolostyak Z, Poliska S, Steiner L, Giannakis N, Varga T, Nagy L. Dynamic transcriptional control of macrophage miRNA signature via inflammation responsive enhancers revealed using a combination of next generation sequencing-based approaches. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2018; 1861:14-28. [DOI: 10.1016/j.bbagrm.2017.11.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 10/23/2017] [Accepted: 11/09/2017] [Indexed: 12/26/2022]
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116
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Kabagambe SK, Lankford L, Kumar P, Chen YJ, Herout KT, Lee CJ, Stark RA, Farmer DL, Wang A. Isolation of myogenic progenitor cell population from human placenta: A pilot study. J Pediatr Surg 2017; 52:2078-2082. [PMID: 28964407 DOI: 10.1016/j.jpedsurg.2017.08.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 08/28/2017] [Indexed: 01/07/2023]
Abstract
PURPOSE The purpose of this study was to demonstrate a method of isolating myogenic progenitor cells from human placenta chorionic villi and to confirm the myogenic characteristics of the isolated cells. METHODS Cells were isolated from chorionic villi of a second trimester male placenta via a combined enzymatic digestion and explant culture. A morphologically distinct subpopulation of elongated and multinucleated cells was identified. This subpopulation was manually passaged from the explant culture, expanded, and analyzed by fluorescence in situ hybridization (FISH) assay, immunocytochemistry, and flow cytometry. Myogenic characteristics including alignment and fusion were tested by growing these cells on aligned polylactic acid microfibrous scaffold in a fusion media composed of 2% horse serum in Dulbecco's modified Eagle medium/high glucose. RESULTS The expanded subpopulation was uniformly positive for integrin α-7. Presence of Y-chromosome by FISH analysis confirmed chorionic villus origin rather than maternal cell contamination. Isolated cells grew, aligned, and fused on the microfibrous scaffold, and they expressed myogenin, desmin, and MHC confirming their myogenic identity. CONCLUSION Myogenic progenitor cells can be isolated from human chorionic villi. This opens the possibility for translational and clinical applications using autologous myogenic cells for possible engraftment in treatment of chest and abdominal wall defects.
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Affiliation(s)
| | - Lee Lankford
- University of California, Davis Health, Sacramento, CA, USA
| | | | - Y Julia Chen
- University of California, Davis Health, Sacramento, CA, USA
| | - Kyle T Herout
- University of California, Davis Health, Sacramento, CA, USA
| | - Chelsey J Lee
- University of California, Davis Health, Sacramento, CA, USA
| | | | - Diana L Farmer
- University of California, Davis Health, Sacramento, CA, USA
| | - Aijun Wang
- University of California, Davis Health, Sacramento, CA, USA
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117
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Sugito N, Taniguchi K, Kuranaga Y, Ohishi M, Soga T, Ito Y, Miyachi M, Kikuchi K, Hosoi H, Akao Y. Cancer-Specific Energy Metabolism in Rhabdomyosarcoma Cells Is Regulated by MicroRNA. Nucleic Acid Ther 2017; 27:365-377. [DOI: 10.1089/nat.2017.0673] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Nobuhiko Sugito
- United Graduate School of Drug Discovery and Medical Information Science, Gifu University, Gifu, Japan
| | - Kohei Taniguchi
- Department of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, Japan
| | - Yuki Kuranaga
- United Graduate School of Drug Discovery and Medical Information Science, Gifu University, Gifu, Japan
| | - Maki Ohishi
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Japan
| | - Tomoyoshi Soga
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Japan
| | - Yuko Ito
- Division of Life Sciences, Department of Anatomy and Cell Biology, Osaka Medical College, Takatsuki, Japan
| | - Mitsuru Miyachi
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Ken Kikuchi
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hajime Hosoi
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yukihiro Akao
- United Graduate School of Drug Discovery and Medical Information Science, Gifu University, Gifu, Japan
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118
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Mok GF, Lozano-Velasco E, Münsterberg A. microRNAs in skeletal muscle development. Semin Cell Dev Biol 2017; 72:67-76. [PMID: 29102719 DOI: 10.1016/j.semcdb.2017.10.032] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 10/24/2017] [Accepted: 10/27/2017] [Indexed: 12/21/2022]
Abstract
A fundamental process during both embryo development and stem cell differentiation is the control of cell lineage determination. In developing skeletal muscle, many of the diffusible signaling molecules, transcription factors and more recently non-coding RNAs that contribute to this process have been identified. This has facilitated advances in our understanding of the molecular mechanisms underlying the control of cell fate choice. Here we will review the role of non-coding RNAs, in particular microRNAs (miRNAs), in embryonic muscle development and differentiation, and in satellite cells of adult muscle, which are essential for muscle growth and regeneration. Some of these short post-transcriptional regulators of gene expression are restricted to skeletal muscle, but their expression can also be more widespread. In addition, we discuss a few examples of long non-coding RNAs, which are numerous but much less well understood.
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Affiliation(s)
- Gi Fay Mok
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - Estefania Lozano-Velasco
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - Andrea Münsterberg
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
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119
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Finding MyoD and lessons learned along the way. Semin Cell Dev Biol 2017; 72:3-9. [PMID: 29097153 DOI: 10.1016/j.semcdb.2017.10.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 09/27/2017] [Accepted: 10/20/2017] [Indexed: 12/16/2022]
Abstract
In 1987, Robert Davis, Hal Weintraub and I reported the identification of MyoD, a transcription factor that could reprogram fibroblasts into skeletal muscle cells. In this recollection, I both summarize the prior work of Helen Blau, Woody Wright, Peter Jones and Charlie Emerson that inspired my entry into this field, and the subsequent events that led to finding MyoD. Lastly, I highlight some of the principles in developmental biology that have emerged during the past 30 years, which are particularly relevant to skeletal muscle biology.
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120
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Proctor CJ, Goljanek-Whysall K. Using computer simulation models to investigate the most promising microRNAs to improve muscle regeneration during ageing. Sci Rep 2017; 7:12314. [PMID: 28951568 PMCID: PMC5614911 DOI: 10.1038/s41598-017-12538-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 09/05/2017] [Indexed: 01/17/2023] Open
Abstract
MicroRNAs (miRNAs) regulate gene expression through interactions with target sites within mRNAs, leading to enhanced degradation of the mRNA or inhibition of translation. Skeletal muscle expresses many different miRNAs with important roles in adulthood myogenesis (regeneration) and myofibre hypertrophy and atrophy, processes associated with muscle ageing. However, the large number of miRNAs and their targets mean that a complex network of pathways exists, making it difficult to predict the effect of selected miRNAs on age-related muscle wasting. Computational modelling has the potential to aid this process as it is possible to combine models of individual miRNA:target interactions to form an integrated network. As yet, no models of these interactions in muscle exist. We created the first model of miRNA:target interactions in myogenesis based on experimental evidence of individual miRNAs which were next validated and used to make testable predictions. Our model confirms that miRNAs regulate key interactions during myogenesis and can act by promoting the switch between quiescent/proliferating/differentiating myoblasts and by maintaining the differentiation process. We propose that a threshold level of miR-1 acts in the initial switch to differentiation, with miR-181 keeping the switch on and miR-378 maintaining the differentiation and miR-143 inhibiting myogenesis.
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Affiliation(s)
- Carole J Proctor
- MRC/Arthritis Research UK Centre for Musculoskeletal Ageing (CIMA), Institute of Cellular Medicine and Newcastle University Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK.
| | - Katarzyna Goljanek-Whysall
- MRC/Arthritis Research UK Centre for Musculoskeletal Ageing (CIMA), Department of Musculoskeletal Biology, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, UK
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121
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Translational Control of the Myogenic Program in Developing, Regenerating, and Diseased Skeletal Muscle. Curr Top Dev Biol 2017; 126:67-98. [PMID: 29305004 DOI: 10.1016/bs.ctdb.2017.08.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Translational control of genes that code for protein allows a cell to rapidly respond to changes in its environment, in part because translational control of gene expression does not depend on upstream events required to produce an mRNA molecule. The importance of translational control has been highlighted by studies concerning muscle development, regeneration, and disease. Translational control of specific mRNAs is achieved by microRNAs and RNA-binding proteins, which are particularly relevant to developmental myogenesis, where they ensure the stepwise differentiation of multipotent progenitors to committed myogenic progenitors that ultimately fuse into slow- or fast-type myofibers that make up skeletal muscle. The importance of translational control is also illustrated in muscle disease, where deregulated microRNA expression accelerates or delays progression of disease. Skeletal muscle is also unique for its remarkable capacity to regenerate after injury, which requires the activity of quiescent muscle stem cells, named satellite cells for their position underneath the basal lamina of the myofiber. Mitotically quiescent satellite cells are primed to activate the cell cycle and myogenic program, a unique feature that requires specific regulation of mRNA translation converging with pathways that regulate global protein synthesis. Emerging concepts in translational control of gene expression have shed light on multiple layers of control over the myogenic program. In parallel, the development and regeneration of skeletal muscle represents a unique, relevant, and highly defined context within which new concepts in translational control of gene expression should emerge.
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122
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Pan JY, Sun CC, Bi ZY, Chen ZL, Li SJ, Li QQ, Wang YX, Bi YY, Li DJ. miR-206/133b Cluster: A Weapon against Lung Cancer? MOLECULAR THERAPY. NUCLEIC ACIDS 2017; 8:442-449. [PMID: 28918043 PMCID: PMC5542379 DOI: 10.1016/j.omtn.2017.06.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/25/2017] [Accepted: 06/02/2017] [Indexed: 12/29/2022]
Abstract
Lung cancer is a deadly disease that ends numerous lives around the world. MicroRNAs (miRNAs) are a group of non-coding RNAs involved in a variety of biological processes, such as cell growth, organ development, and tumorigenesis. The miR-206/133b cluster is located on the human chromosome 6p12.2, which is essential for growth and rebuilding of skeletal muscle. The miR-206/133b cluster has been verified to be dysregulated and plays a crucial role in lung cancer. miR-206 and miR-133b participate in lung tumor cell apoptosis, proliferation, migration, invasion, angiogenesis, drug resistance, and cancer treatment. The mechanisms are sophisticated, involving various target genes and molecular pathways, such as MET, EGFR, and the STAT3/HIF-1α/VEGF signal pathway. Hence, in this review, we summarize the role and potential mechanisms of the miR-206/133b cluster in lung cancer.
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Affiliation(s)
- Jing-Yu Pan
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071 Hubei, P.R. China
| | - Cheng-Cao Sun
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071 Hubei, P.R. China.
| | - Zhuo-Yue Bi
- Hubei Provincial Key Laboratory for Applied Toxicology (Hubei Provincial Academy for Preventive Medicine), Wuhan 430079 Hubei, P.R. China
| | - Zhen-Long Chen
- Wuhan Hospital for the Prevention and Treatment of Occupational Diseases, Wuhan 430022 Hubei, P.R. China
| | - Shu-Jun Li
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071 Hubei, P.R. China; Wuhan Hospital for the Prevention and Treatment of Occupational Diseases, Wuhan 430022 Hubei, P.R. China
| | - Qing-Qun Li
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071 Hubei, P.R. China
| | - Yu-Xuan Wang
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071 Hubei, P.R. China
| | - Yong-Yi Bi
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071 Hubei, P.R. China
| | - De-Jia Li
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan 430071 Hubei, P.R. China.
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123
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An Y, Wang G, Diao Y, Long Y, Fu X, Weng M, Zhou L, Sun K, Cheung TH, Ip NY, Sun H, Wang H, Wu Z. A Molecular Switch Regulating Cell Fate Choice between Muscle Progenitor Cells and Brown Adipocytes. Dev Cell 2017; 41:382-391.e5. [PMID: 28535373 DOI: 10.1016/j.devcel.2017.04.012] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 02/16/2017] [Accepted: 04/19/2017] [Indexed: 11/16/2022]
Abstract
During mouse embryo development, both muscle progenitor cells (MPCs) and brown adipocytes (BAs) are known to derive from the same Pax7+/Myf5+ progenitor cells. However, the underlying mechanisms for the cell fate control remain unclear. In Pax7-null MPCs from young mice, several BA-specific genes, including Prdm16 and Ucp1 and many other adipocyte-related genes, were upregulated with a concomitant reduction of Myod and Myf5, two muscle lineage-determining genes. This suggests a cell fate switch from MPC to BA. Consistently, freshly isolated Pax7-null but not wild-type MPCs formed lipid-droplet-containing UCP1+ BA in culture. Mechanistically, MyoD and Myf5, both known transcription targets of Pax7 in MPC, potently repress Prdm16, a BA-specific lineage-determining gene, via the E2F4/p107/p130 transcription repressor complex. Importantly, inducible Pax7 ablation in developing mouse embryos promoted brown fat development. Thus, the MyoD/Myf5-E2F4/p107/p130 axis functions in both the Pax7+/Myf5+ embryonic progenitor cells and postnatal myoblasts to repress the alternative BA fate.
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Affiliation(s)
- Yitai An
- Division of Life Science, Center for Stem Cell Research, Center of Systems Biology and Human Health, State Key Laboratory in Molecular Neuroscience, Hong Kong University of Science & Technology, Clearwater Bay, Kowloon, Hong Kong, China
| | - Gang Wang
- Division of Life Science, Center for Stem Cell Research, Center of Systems Biology and Human Health, State Key Laboratory in Molecular Neuroscience, Hong Kong University of Science & Technology, Clearwater Bay, Kowloon, Hong Kong, China
| | - Yarui Diao
- Division of Life Science, Center for Stem Cell Research, Center of Systems Biology and Human Health, State Key Laboratory in Molecular Neuroscience, Hong Kong University of Science & Technology, Clearwater Bay, Kowloon, Hong Kong, China
| | - Yanyang Long
- Division of Life Science, Center for Stem Cell Research, Center of Systems Biology and Human Health, State Key Laboratory in Molecular Neuroscience, Hong Kong University of Science & Technology, Clearwater Bay, Kowloon, Hong Kong, China
| | - Xinrong Fu
- Division of Life Science, Center for Stem Cell Research, Center of Systems Biology and Human Health, State Key Laboratory in Molecular Neuroscience, Hong Kong University of Science & Technology, Clearwater Bay, Kowloon, Hong Kong, China
| | - Mingxi Weng
- Division of Life Science, Center for Stem Cell Research, Center of Systems Biology and Human Health, State Key Laboratory in Molecular Neuroscience, Hong Kong University of Science & Technology, Clearwater Bay, Kowloon, Hong Kong, China
| | - Liang Zhou
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Kun Sun
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Tom H Cheung
- Division of Life Science, Center for Stem Cell Research, Center of Systems Biology and Human Health, State Key Laboratory in Molecular Neuroscience, Hong Kong University of Science & Technology, Clearwater Bay, Kowloon, Hong Kong, China
| | - Nancy Y Ip
- Division of Life Science, Center for Stem Cell Research, Center of Systems Biology and Human Health, State Key Laboratory in Molecular Neuroscience, Hong Kong University of Science & Technology, Clearwater Bay, Kowloon, Hong Kong, China
| | - Hao Sun
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Huating Wang
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Zhenguo Wu
- Division of Life Science, Center for Stem Cell Research, Center of Systems Biology and Human Health, State Key Laboratory in Molecular Neuroscience, Hong Kong University of Science & Technology, Clearwater Bay, Kowloon, Hong Kong, China.
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124
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Simon L, Ford SM, Song K, Berner P, Vande Stouwe C, Nelson S, Bagby GJ, Molina PE. Decreased myoblast differentiation in chronic binge alcohol-administered simian immunodeficiency virus-infected male macaques: role of decreased miR-206. Am J Physiol Regul Integr Comp Physiol 2017; 313:R240-R250. [PMID: 28637658 PMCID: PMC5625276 DOI: 10.1152/ajpregu.00146.2017] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 06/07/2017] [Accepted: 06/21/2017] [Indexed: 01/05/2023]
Abstract
Skeletal muscle stem cells play a critical role in regeneration of myofibers. We previously demonstrated that chronic binge alcohol (CBA) markedly attenuates myoblast differentiation potential and myogenic gene expression. Muscle-specific microRNAs (miRs) are implicated in regulation of myogenic genes. The aim of this study was to determine whether myoblasts isolated from asymptomatic CBA-administered simian immunodeficiency virus (SIV)-infected macaques treated with antiretroviral therapy (ART) showed similar impairments and, if so, to elucidate potential underlying mechanisms. Myoblasts were isolated from muscle at 11 mo after SIV infection from CBA/SIV macaques and from time-matched sucrose (SUC)-treated SIV-infected (SUC/SIV) animals and age-matched controls. Myoblast differentiation and myogenic gene expression were significantly decreased in myoblasts from SUC/SIV and CBA/SIV animals compared with controls. SIV and CBA decreased muscle-specific miR-206 in plasma and muscle and SIV decreased miR-206 expression in myoblasts, with no statistically significant changes in other muscle-specific miRs. These findings were associated with a significant increase in histone deacetylase 4 (HDAC4) and decrease in myogenic enhancer factor 2C (MEF2C) expression in CBA/SIV muscle. Transfection with miR-206 inhibitor decreased myotube differentiation, increased expression of HDAC4, and decreased MEF2C, suggesting a critical role of miR-206 in myogenesis. Moreover, HDAC4 was confirmed to be a direct miR-206 target. These results support a mechanistic role for decreased miR-206 in suppression of myoblast differentiation resulting from chronic alcohol and SIV infection. The parallel changes in skeletal muscle and circulating levels of miR-206 warrant studies to establish the possible use of plasma miR-206 as an indicator of impaired muscle function.
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Affiliation(s)
- L Simon
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana;
- Comprehensive Alcohol Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana; and
| | - S M Ford
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - K Song
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - P Berner
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - C Vande Stouwe
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - S Nelson
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Comprehensive Alcohol Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana; and
- School of Medicine, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - G J Bagby
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Comprehensive Alcohol Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana; and
- School of Medicine, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - P E Molina
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Comprehensive Alcohol Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana; and
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125
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Latimer M, Sabin N, Le Cam A, Seiliez I, Biga P, Gabillard JC. miR-210 expression is associated with methionine-induced differentiation of trout satellite cells. J Exp Biol 2017; 220:2932-2938. [PMID: 28576820 PMCID: PMC6514451 DOI: 10.1242/jeb.154484] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 05/30/2017] [Indexed: 01/20/2023]
Abstract
In fish, data on microRNAs (miRNAs) involved in myogenesis are scarce. In order to identify miRNAs involved in satellite cell differentiation, we used a methionine depletion/replenishment protocol to synchronize myogenic cell differentiation. Our results validated that methionine removal (72 h) from the medium strongly decreased myoD1 and myogenin expression, indicating differentiation arrest. In contrast, methionine replenishment rescued expression of myoD1 and myogenin, showing a resumption of differentiation. We performed a miRNA array analysis of myogenic cells under three conditions: presence of methionine for 72 h (control), absence of methionine for 72 h (Meth-) and absence of methionine for 48 h followed by 24 h of methionine replenishment (Meth-/+). A clustering analysis identified three clusters: cluster I corresponds to miRNA upregulated only in Meth-/+ conditions; cluster II corresponds to miRNA downregulated only in Meth-/+ conditions; cluster III corresponds to miRNAs with high expression in control, low expression in Meth- conditions and intermediate expression after methionine replenishment (Meth-/+). Cluster III was very interesting because it fitted with the data obtained for myoD1 and myogenin (supporting an involvement in differentiation) and contained seven miRNAs with muscle-related function (e.g. miR-133a) and one (miR-210) with unknown function. Based on our previously published miRNA repertoire ( Juanchich et al., 2016), we confirmed miR-133a was expressed only in white muscle and showed that miR-210 had strong expression in white muscle. We also showed that miR-210 expression was upregulated during differentiation of satellite cells, suggesting that miR-210 was potentially involved in the differentiation of satellite cells.
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Affiliation(s)
- Mary Latimer
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Nutrition and Obesity Research Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Nathalie Sabin
- INRA, UR1037 Laboratoire de Physiologie et Génomique des Poissons, 35000 Rennes, France
| | - Aurélie Le Cam
- INRA, UR1037 Laboratoire de Physiologie et Génomique des Poissons, 35000 Rennes, France
| | - Iban Seiliez
- INRA-UPPA, UMR1419 Nutrition Métabolisme Aquaculture, F-64310 St-Pée-sur-Nivelle, France
| | - Peggy Biga
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Nutrition and Obesity Research Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
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126
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Tian M, He X, Wang W, Liu D, Meng Q. Differential microRNA expression profiling and target gene prediction in the muscle tissues of clenbuterol-fed Chinese miniature swine. ACTA AGR SCAND A-AN 2017. [DOI: 10.1080/09064702.2017.1332094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- M. Tian
- Postdoctoral Research Workstation, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
- College of Biology, China Agricultural University (CAU), Beijing, People’s Republic of China
| | - X. He
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
| | - W. Wang
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
| | - D. Liu
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
| | - Q. Meng
- College of Biology, China Agricultural University (CAU), Beijing, People’s Republic of China
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127
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Tarhriz V, Wagner KD, Masoumi Z, Molavi O, Hejazi MS, Ghanbarian H. CDK9 Regulates Apoptosis of Myoblast Cells by Modulation of microRNA-1 Expression. J Cell Biochem 2017; 119:547-554. [PMID: 28608935 DOI: 10.1002/jcb.26213] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 06/12/2017] [Indexed: 11/09/2022]
Abstract
Cdk9 is the catalytic core of the positive transcription elongation factor b (P-TEFb) and regulates transcriptional elongation factors by phosphorylation of RNA pol II. Apart from its role on myogenic gene expression, Cdk9 regulation of muscle-specific microRNAs in the early stage of cardiomyogenesis is poorly understood. Here we demonstrate that Cdk9 not only regulates myogenic transcription factors, but also controls muscle-specific microRNAs. During cardiac differentiation of mouse embryonic stem cells, high Cdk9 expression preceded up-regulation of miR-1. To investigate potential regulatory roles of Cdk9 on cardiac microRNAs and myogenesis genes, we overexpressed Cdk9 in myoblast C2C12 cells, which resulted in significant induction of miR-1 and miR-206, while miR-133 was downregulated. Moreover, expression levels of MyoD and Srf, key regulators of myogenesis, also increased in cells with overexpression of Cdk9. We further observed Cdk9-mediated apoptosis in C2C12 cells corresponding to induction of miR-1 expression levels. Thus, Cdk9 plays a complex role in myocyte progenitor differentiation and apoptosis by regulating myogenic protein and muscle-specific microRNA expression. J. Cell. Biochem. 119: 547-554, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Vahideh Tarhriz
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Zahra Masoumi
- Department of Molecular Biology and Genetic Engineering, Stem Cell Technology Research Center, Tehran, Iran.,Faculty of Medicine, Division of Obstetrics and Gynecology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Ommoleila Molavi
- Faculty of Pharmacy, Department of Pharmaceutical Biotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Saeid Hejazi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Faculty of Pharmacy, Department of Pharmaceutical Biotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Ghanbarian
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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128
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Kura B, Babal P, Slezak J. Implication of microRNAs in the development and potential treatment of radiation-induced heart disease. Can J Physiol Pharmacol 2017; 95:1236-1244. [PMID: 28679064 DOI: 10.1139/cjpp-2016-0741] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Radiotherapy is the most commonly used methodology to treat oncological disease, one of the most widespread causes of death worldwide. Oncological patients cured by radiotherapy applied to the mediastinal area have been shown to suffer from cardiovascular disease. The increase in the prevalence of radiation-induced heart disease has emphasized the need to seek new therapeutic targets to mitigate the negative impact of radiation on the heart. In this regard, microRNAs (miRNAs) have received considerable interest. miRNAs regulate post-transcriptional gene expression by their ability to target various mRNA sequences because of their imperfect pairing with mRNAs. It has been recognized that miRNAs modulate a diverse spectrum of cardiac functions with developmental, pathophysiological, and clinical implications. This makes them promising potential targets for diagnosis and treatment. This review summarizes the recent findings about the possible involvement of miRNAs in radiation-induced heart disease and their potential use as diagnostic or treatment targets in this respect.
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Affiliation(s)
- Branislav Kura
- a Institute for Heart Research, Slovak Academy of Sciences, Dúbravská cesta 9, 840 05, Bratislava, Slovak Republic
| | - Pavel Babal
- b Institute of Pathological Anatomy, Faculty of Medicine, Comenius University in Bratislava and University Hospital Bratislava, Sasinkova 4, 811 08 Bratislava, Slovak Republic
| | - Jan Slezak
- a Institute for Heart Research, Slovak Academy of Sciences, Dúbravská cesta 9, 840 05, Bratislava, Slovak Republic
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129
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Margolis LM, Rivas DA, Pasiakos SM, McClung JP, Ceglia L, Fielding RA. Upregulation of circulating myomiR following short-term energy restriction is inversely associated with whole body protein synthesis. Am J Physiol Regul Integr Comp Physiol 2017; 313:R298-R304. [PMID: 28659285 DOI: 10.1152/ajpregu.00054.2017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 06/22/2017] [Accepted: 06/26/2017] [Indexed: 01/05/2023]
Abstract
The objective of the present investigation was to determine whether energy restriction (ER) influences expression of skeletal muscle-specific microRNA (miRNA) in circulation (c-myomiR) and whether changes in c-myomiR are associated with rates of whole body protein synthesis. Sixteen older (64 ± 2 yr) overweight (28.5 ± 1.2 kg/m2) men enrolled in this 35-day controlled feeding trial. A 7-day weight maintenance (WM) period was followed by 28 days of 30% ER. Whole body protein turnover was determined from [15N]glycine enrichments in 24-h urine collections, and c-myomiR (miR-1-3p, miR-133a-3p, miR-133b, and miR-206) expression was assessed from serum samples by RT-quantitative PCR upon completion of the WM and ER periods. Participants lost 4.4 ± 0.3 kg body mass during ER (P < 0.05). After 28 days of ER, miR-133a and miR-133b expression was upregulated (P < 0.05) compared with WM. When all four c-myomiR were grouped as c-myomiR score (sum of the median fold change of all myomiR), overall expression of c-myomiR was higher (P < 0.05) at ER than WM. Backward linear regression analysis of whole body protein synthesis and breakdown and carbohydrate, fat, and protein oxidation determined protein synthesis to be the strongest predictor of c-myomiR score. An inverse association (P < 0.05) was observed with ER c-myomiR score and whole body protein synthesis (r = -0.729, r2 = -0.530). Findings from the present investigation provide evidence that upregulation of c-myomiR expression profiles in response to short-term ER is associated with lower rates of whole body protein synthesis.
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Affiliation(s)
- Lee M Margolis
- Nutrition, Exercise, Physiology, and Sarcopenia Laboratory, United States Department of Agriculture Jean Mayer Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts
| | - Donato A Rivas
- Nutrition, Exercise, Physiology, and Sarcopenia Laboratory, United States Department of Agriculture Jean Mayer Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts
| | - Stefan M Pasiakos
- Military Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts
| | - James P McClung
- Military Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts
| | - Lisa Ceglia
- Bone Metabolism Laboratory, United States Department of Agriculture Jean Mayer Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts; and.,Division of Endocrinology, Diabetes, and Metabolism, Tufts Medical Center, Boston, Massachusetts
| | - Roger A Fielding
- Nutrition, Exercise, Physiology, and Sarcopenia Laboratory, United States Department of Agriculture Jean Mayer Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts;
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130
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Tuning of major signaling networks (TGF-β, Wnt, Notch and Hedgehog) by miRNAs in human stem cells commitment to different lineages: Possible clinical application. Biomed Pharmacother 2017; 91:849-860. [PMID: 28501774 DOI: 10.1016/j.biopha.2017.05.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 04/29/2017] [Accepted: 05/04/2017] [Indexed: 02/07/2023] Open
Abstract
Two distinguishing characteristics of stem cells, their continuous division in the undifferentiated state and growth into any cell types, are orchestrated by a number of cell signaling pathways. These pathways act as a niche factor in controlling variety of stem cells. The core stem cell signaling pathways include Wingless-type (Wnt), Hedgehog (HH), and Notch. Additionally, they critically regulate the self-renewal and survival of cancer stem cells. Conversely, stem cells' main properties, lineage commitment and stemness, are tightly controlled by epigenetic mechanisms such as DNA methylation, histone modifications and non-coding RNA-mediated regulatory events. MicroRNAs (miRNAs) are cellular switches that modulate stem cells outcomes in response to diverse extracellular signals. Numerous scientific evidences implicating miRNAs in major signal transduction pathways highlight new crosstalks of cellular processes. Aberrant signaling pathways and miRNAs levels result in developmental defects and diverse human pathologies. This review discusses the crosstalk between the components of main signaling networks and the miRNA machinery, which plays a role in the context of stem cells development and provides a set of examples to illustrate the extensive relevance of potential novel therapeutic targets.
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131
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Koltai E, Bori Z, Chabert C, Dubouchaud H, Naito H, Machida S, Davies KJ, Murlasits Z, Fry AC, Boldogh I, Radak Z. SIRT1 may play a crucial role in overload-induced hypertrophy of skeletal muscle. J Physiol 2017; 595:3361-3376. [PMID: 28251652 PMCID: PMC5451718 DOI: 10.1113/jp273774] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Accepted: 02/23/2017] [Indexed: 01/08/2023] Open
Abstract
KEY POINTS Silent mating type information regulation 2 homologue 1 (SIRT1) activity and content increased significantly in overload-induced hypertrophy. SIRT1-mediated signalling through Akt, the endothelial nitric oxide synthase mediated pathway, regulates anabolic process in the hypertrophy of skeletal muscle. The regulation of catabolic signalling via forkhead box O 1 and protein ubiquitination is SIRT1 dependent. Overload-induced changes in microRNA levels regulate SIRT1 and insulin-like growth factor 1 signalling. ABSTRACT Significant skeletal muscle mass guarantees functional wellbeing and is important for high level performance in many sports. Although the molecular mechanism for skeletal muscle hypertrophy has been well studied, it still is not completely understood. In the present study, we used a functional overload model to induce plantaris muscle hypertrophy by surgically removing the soleus and gastrocnemius muscles in rats. Two weeks of muscle ablation resulted in a 40% increase in muscle mass, which was associated with a significant increase in silent mating type information regulation 2 homologue 1 (SIRT1) content and activity (P < 0.001). SIRT1-regulated Akt, endothelial nitric oxide synthase and GLUT4 levels were also induced in hypertrophied muscles, and SIRT1 levels correlated with muscle mass, paired box protein 7 (Pax7), proliferating cell nuclear antigen (PCNA) and nicotinamide phosphoribosyltransferase (Nampt) levels. Alternatively, decreased forkhead box O 1 (FOXO1) and increased K48 polyubiquitination also suggest that SIRT1 could be involved in the catabolic process of hypertrophy. Furthermore, increased levels of K63 and muscle RING finger 2 (MuRF2) protein could also be important enhancers of muscle mass. We report here that the levels of miR1 and miR133a decrease in hypertrophy and negatively correlate with muscle mass, SIRT1 and Nampt levels. Our results reveal a strong correlation between SIRT1 levels and activity, SIRT1-regulated pathways and overload-induced hypertrophy. These findings, along with the well-known regulatory roles that SIRT1 plays in modulating both anabolic and catabolic pathways, allow us to propose the hypothesis that SIRT1 may actually play a crucial causal role in overload-induced hypertrophy of skeletal muscle. This hypothesis will now require rigorous direct and functional testing.
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Affiliation(s)
- Erika Koltai
- Research Institute of Sport Science, University of Physical Education, Budapest, Hungary
| | - Zoltán Bori
- Research Institute of Sport Science, University of Physical Education, Budapest, Hungary
| | - Clovis Chabert
- Université Joseph Fourier, Laboratoire de Bioénergétique Fondamentale et Appliquée, Grenoble Cedex, 0938041, France
| | - Hervé Dubouchaud
- Université Joseph Fourier, Laboratoire de Bioénergétique Fondamentale et Appliquée, Grenoble Cedex, 0938041, France
| | - Hisashi Naito
- Department of Exercise Physiology, Graduate School of Health and Sports Science & Medicine, Juntendo University, Japan
| | - Shuichi Machida
- Department of Exercise Physiology, Graduate School of Health and Sports Science & Medicine, Juntendo University, Japan
| | - Kelvin Ja Davies
- Ethel Percy Andrus Gerontology Centre of the Leonard Davis School of Gerontology; and Division of Molecular & Computational Biology, Department of Biological Sciences, of the Dornsife College of Letters, Arts, and Sciences, the University of Southern California, Los Angeles, CA, 90089-0191, USA
| | | | - Andrew C Fry
- Osness Human Performance Laboratories, Department of Health, Sport, and Exercise Sciences, University of Kansas, Lawrence, KS, 66045, USA
| | - Istvan Boldogh
- Department of Microbiology and Immunology, University of Texas Medical Branch at Galveston, Galveston, TX, 77555, USA
| | - Zsolt Radak
- Research Institute of Sport Science, University of Physical Education, Budapest, Hungary.,Institute of Sport Sciences and Physical Education, University of Pecs, Pecs, Hungary
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132
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Henriksen TI, Davidsen PK, Pedersen M, Schultz HS, Hansen NS, Larsen TJ, Vaag A, Pedersen BK, Nielsen S, Scheele C. Dysregulation of a novel miR-23b/27b-p53 axis impairs muscle stem cell differentiation of humans with type 2 diabetes. Mol Metab 2017; 6:770-779. [PMID: 28702332 PMCID: PMC5485225 DOI: 10.1016/j.molmet.2017.04.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 04/06/2017] [Accepted: 04/20/2017] [Indexed: 12/25/2022] Open
Abstract
Objective MicroRNAs (miRNAs) are increasingly recognized as fine-tuning regulators of metabolism, and are dysregulated in several disease conditions. With their capacity to rapidly change gene expression, miRNAs are also important regulators of development and cell differentiation. In the current study, we describe an impaired myogenic capacity of muscle stem cells isolated from humans with type 2 diabetes (T2DM) and assess whether this phenotype is regulated by miRNAs. Methods We measured global miRNA expression during in vitro differentiation of muscle stem cells derived from T2DM patients and healthy controls. Results The mir-23b/27b cluster was downregulated in the cells of the patients, and a pro-myogenic effect of these miRNAs was mediated through the p53 pathway, which was concordantly dysregulated in the muscle cells derived from humans with T2DM. Conclusions Our results indicate that we have identified a novel pathway for coordination of myogenesis, the miR-23b/27b-p53 axis that, when dysregulated, potentially contributes to a sustained muscular dysfunction in T2DM. miR-23b and miR-27b are pro-myogenic and are downregulated in T2DM. miR-23b and miR-27b regulate myogenesis through the p53 pathway. The p53 pathway is concordantly dysregulated in T2DM.
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Affiliation(s)
- Tora I. Henriksen
- The Centre of Inflammation and Metabolism and the Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen Denmark
| | - Peter K. Davidsen
- The Centre of Inflammation and Metabolism and the Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen Denmark
- Centre for Computational Biology and Modelling, Institute for Integrative Biology, University of Liverpool, Crown Street, Liverpool, L69 7ZB, UK
| | - Maria Pedersen
- The Centre of Inflammation and Metabolism and the Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen Denmark
| | | | - Ninna S. Hansen
- Department of Endocrinology, Diabetes and Metabolism, Rigshospitalet, Copenhagen, Denmark
| | - Therese J. Larsen
- The Centre of Inflammation and Metabolism and the Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen Denmark
- Danish Diabetes Academy, Odense, Denmark
| | - Allan Vaag
- Department of Endocrinology, Diabetes and Metabolism, Rigshospitalet, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Bente K. Pedersen
- The Centre of Inflammation and Metabolism and the Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Søren Nielsen
- The Centre of Inflammation and Metabolism and the Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen Denmark
| | - Camilla Scheele
- The Centre of Inflammation and Metabolism and the Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen Denmark
- Novo Nordisk Foundation Center, Section for Basic Metabolic Research, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
- Corresponding author. Centre of Inflammation and Metabolism, Rigshospitalet – Section 7641, Blegdamsvej 9, DK-2100 Copenhagen, Denmark. Fax: +45 3545 7644.Centre of Inflammation and MetabolismRigshospitalet – Section 7641Blegdamsvej 9CopenhagenDK-2100Denmark
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133
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Barreiro E, Tajbakhsh S. Epigenetic regulation of muscle development. J Muscle Res Cell Motil 2017; 38:31-35. [DOI: 10.1007/s10974-017-9469-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 03/22/2017] [Indexed: 12/27/2022]
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134
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Liu Y, Liang Y, Zhang JF, Fu WM. MicroRNA-133 mediates cardiac diseases: Mechanisms and clinical implications. Exp Cell Res 2017; 354:65-70. [PMID: 28322824 DOI: 10.1016/j.yexcr.2017.03.037] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 03/15/2017] [Accepted: 03/17/2017] [Indexed: 12/28/2022]
Abstract
MicroRNAs (miRNAs) belong to the family of small non-coding RNAs that mediate gene expression by post-transcriptional regulation. Increasing evidence have demonstrated that miR-133 is enriched in muscle tissues and myogenic cells, and its aberrant expression could induce the occurrence and development of cardiac disorders, such as cardiac hypertrophy, heart failure, etc. In this review, we summarized the regulatory roles of miR-133 in cardiac disorders and the underlying mechanisms, which suggest that miR-133 may be a potential diagnostic and therapeutic tool for cardiac disorders.
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Affiliation(s)
- Yi Liu
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang 524023, Guangdong, China
| | - Yan Liang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang 524023, Guangdong, China
| | - Jin-Fang Zhang
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, China
| | - Wei-Ming Fu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
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135
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Koganti PP, Wang J, Cleveland B, Ma H, Weber GM, Yao J. Estradiol regulates expression of miRNAs associated with myogenesis in rainbow trout. Mol Cell Endocrinol 2017; 443:1-14. [PMID: 28011237 DOI: 10.1016/j.mce.2016.12.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 11/14/2016] [Accepted: 12/13/2016] [Indexed: 10/20/2022]
Abstract
17β-Estradiol (E2) is a steroid hormone that negatively affects muscle growth in rainbow trout, but the mechanism associated with this response is not fully understood. To better characterize the effects of E2 on muscle, we identified differentially regulated microRNAs (miRNAs) and muscle atrophy-related transcripts in juvenile rainbow trout exposed to E2. Small RNA-Seq analysis of E2-treated vs. control muscle identified 36 differentially expressed miRNAs including those known to be involved in myogenesis, cell cycle, apoptosis, and cell death. Some important myogenic miRNAs, such as miR-133 and miR-206, are upregulated while others like miR-145 and miR-499, are downregulated. Gene Ontology analysis of the target genes regulated by the miRNAs involved in atrophy and cell cycle indicates that E2 influence leads to expansion of quiescent myogenic precursor cell population to address atrophying mature muscle in rainbow trout during sexual development.
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Affiliation(s)
- Prasanthi P Koganti
- Genetics and Developmental Biology, West Virginia University, Morgantown, WV, United States
| | - Jian Wang
- Genetics and Developmental Biology, West Virginia University, Morgantown, WV, United States
| | - Beth Cleveland
- USDA/ARS, National Center for Cool and Cold Water Aquaculture Research, Kearneysville, WV, United States
| | - Hao Ma
- USDA/ARS, National Center for Cool and Cold Water Aquaculture Research, Kearneysville, WV, United States
| | - Gregory M Weber
- USDA/ARS, National Center for Cool and Cold Water Aquaculture Research, Kearneysville, WV, United States
| | - Jianbo Yao
- Genetics and Developmental Biology, West Virginia University, Morgantown, WV, United States.
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136
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Gonçalves TJ, Armand AS. Non-coding RNAs in skeletal muscle regeneration. Noncoding RNA Res 2017; 2:56-67. [PMID: 30159421 PMCID: PMC6096429 DOI: 10.1016/j.ncrna.2017.03.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 03/23/2017] [Accepted: 03/23/2017] [Indexed: 01/09/2023] Open
Abstract
Following injury, skeletal muscles can regenerate from muscle specific stem cells, called satellite cells. Quiescent in uninjured muscles, satellite cells become activated, proliferate and differentiate into myotubes. Muscle regeneration occurs following distinct main overlapping phases, including inflammation, regeneration and maturation of the regenerated myofibers. Each step of muscle regeneration is orchestrated through complex signaling networks and gene regulatory networks, leading to the expression of specific set of genes in each concerned cell type. Apart from the well-established transcriptional mechanisms involving the myogenic regulatory factors of the MyoD family, increasing data indicate that each step of muscle regeneration is controlled by a wide range of non-coding RNAs. In this review, we discuss the role of two classes of non-coding RNAs (microRNAs and long non-coding RNAs) in the inflammatory, regeneration and maturation steps of muscle regeneration.
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Affiliation(s)
- Tristan J.M. Gonçalves
- Institut Necker-Enfants Malades, Inserm, U1151, 14 rue Maria Helena Vieira Da Silva, CS 61431, Paris, F-75014, France
- INSERM UMRS 1124, 45 rue des Saints-Pères, F-75270 Paris cedex 06, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Anne-Sophie Armand
- Institut Necker-Enfants Malades, Inserm, U1151, 14 rue Maria Helena Vieira Da Silva, CS 61431, Paris, F-75014, France
- INSERM UMRS 1124, 45 rue des Saints-Pères, F-75270 Paris cedex 06, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
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137
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Amirouche A, Jahnke VE, Lunde JA, Koulmann N, Freyssenet DG, Jasmin BJ. Muscle-specific microRNA-206 targets multiple components in dystrophic skeletal muscle representing beneficial adaptations. Am J Physiol Cell Physiol 2017; 312:C209-C221. [DOI: 10.1152/ajpcell.00185.2016] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 12/06/2016] [Accepted: 12/21/2016] [Indexed: 01/31/2023]
Abstract
Over the last several years, converging lines of evidence have indicated that miR-206 plays a pivotal role in promoting muscle differentiation and regeneration, thereby potentially impacting positively on the progression of neuromuscular disorders, including Duchenne muscular dystrophy (DMD). Despite several studies showing the regulatory function of miR-206 on target mRNAs in skeletal muscle cells, the effects of overexpression of miR-206 in dystrophic muscles remain to be established. Here, we found that miR-206 overexpression in mdx mouse muscles simultaneously targets multiple mRNAs and proteins implicated in satellite cell differentiation, muscle regeneration, and at the neuromuscular junction. Overexpression of miR-206 also increased the levels of several muscle-specific mRNAs/proteins, while enhancing utrophin A expression at the sarcolemma. Finally, we also observed that the increased expression of miR-206 in dystrophin-deficient mouse muscle decreased the production of proinflammatory cytokines and infiltration of macrophages. Taken together, our results show that miR-206 acts as a pleiotropic regulator that targets multiple key mRNAs and proteins expected to provide beneficial adaptations in dystrophic muscle, thus highlighting its therapeutic potential for DMD.
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Affiliation(s)
- Adel Amirouche
- Laboratoire Interuniversitaire de Biologie de la Motricité, Université de Saint Etienne, Université de Lyon, Lyon, France
- Department of Cellular and Molecular Medicine and Centre for Neuromuscular Disease, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; and
| | - Vanessa E. Jahnke
- Laboratoire Interuniversitaire de Biologie de la Motricité, Université de Saint Etienne, Université de Lyon, Lyon, France
| | - John A. Lunde
- Department of Cellular and Molecular Medicine and Centre for Neuromuscular Disease, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; and
| | - Nathalie Koulmann
- Institut de Recherche Biomédicale des Armées, Département Environnements Opérationnels, Bretigny-sur-Orge, France
| | - Damien G. Freyssenet
- Laboratoire Interuniversitaire de Biologie de la Motricité, Université de Saint Etienne, Université de Lyon, Lyon, France
| | - Bernard J. Jasmin
- Department of Cellular and Molecular Medicine and Centre for Neuromuscular Disease, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; and
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138
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Jia X, Ouyang H, Abdalla BA, Xu H, Nie Q, Zhang X. miR-16 controls myoblast proliferation and apoptosis through directly suppressing Bcl2 and FOXO1 activities. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2017; 1860:674-684. [PMID: 28258011 DOI: 10.1016/j.bbagrm.2017.02.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 02/25/2017] [Accepted: 02/27/2017] [Indexed: 12/18/2022]
Abstract
Myogenesis mainly involves several steps including myoblast proliferation, differentiation, apoptosis and fusion. Except for muscle specific regulators, few miRNAs were proved to coordinate this complex process. Here, we reported that miR-16 inhibited myoblast proliferation and promoted myoblast apoptosis by directly targeting Bcl2 and FOXO1. The expression level of miR-16 was significantly decreased in the hypertrophic pectoral muscle compared to the normal pectoral muscle in chicken. In vitro, elevating miR-16 significantly inhibited myoblast proliferation and promoted myoblast apoptosis, resulting in about 11.2% cells arrested in G1 phase and 12.3% apoptotic cells in the early stage. Bioinformatic and biochemical analyses revealed Bcl2 and FOXO1 as direct targets of miR-16. Consist to the effect of miR-16 on myogenesis, specific inhibition of Bcl2 or FOXO1 significantly suppressed myoblast proliferation and induced myoblast apoptosis, indicating that both Bcl2 and FOXO1 contributed to miR-16 regulatory function in myogenesis. Interestingly, FOXO1, as the core target, mediated multiple growth-related pathways induced by miR-16 such as PI3K-AKT-MAPK and PI3K-AKT-mTOR. Chromatin immunoprecipitation coupled with high-throughput sequencing (ChIP-seq) revealed that 234 annotated genes bound by FOXO1 in the early-differentiated myoblasts, which were significantly enriched in myogenic proliferation, death and hypotrophy. Altogether, we proposed that miR-16 acted as a coordinated mediator to suppress myogenesis in avian through the control of myoblast proliferation and apoptosis. These findings have provided a novel mechanism whereby miR-16 represses Bcl2 and FOXO1 expression to maintain myoblast growth and skeletal muscle mass.
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Affiliation(s)
- Xinzheng Jia
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China
| | - Hongjia Ouyang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China
| | - Bahareldin Ali Abdalla
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China
| | - Haiping Xu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China
| | - Qinghua Nie
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China.
| | - Xiquan Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China
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139
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Gabunia K, Herman AB, Ray M, Kelemen SE, England RN, DeLa Cadena R, Foster WJ, Elliott KJ, Eguchi S, Autieri MV. Induction of MiR133a expression by IL-19 targets LDLRAP1 and reduces oxLDL uptake in VSMC. J Mol Cell Cardiol 2017; 105:38-48. [PMID: 28257760 DOI: 10.1016/j.yjmcc.2017.02.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 02/21/2017] [Accepted: 02/27/2017] [Indexed: 10/20/2022]
Abstract
The transformation of vascular smooth muscle cells [VSMC] into foam cells leading to increased plaque size and decreased stability is a key, yet understudied step in atherogenesis. We reported that Interleukin-19 (IL-19), a novel, anti-inflammatory cytokine, attenuates atherosclerosis by anti-inflammatory effects on VSMC. In this work we report that IL-19 induces expression of miR133a, a muscle-specific miRNA, in VSMC. Although previously unreported, we report that miR133a can target and reduce mRNA abundance, mRNA stability, and protein expression of Low Density Lipoprotein Receptor Adaptor Protein 1, (LDLRAP1), an adaptor protein which functions to internalize the LDL receptor. Mutations in this gene lead to LDL receptor malfunction and cause the Autosomal Recessive Hypercholesterolemia (ARH) disorder in humans. Herein we show that IL-19 reduces lipid accumulation in VSMC, and LDLRAP1 expression and oxLDL uptake in a miR133a-dependent mechanism. We show that LDLRAP1 is expressed in plaque and neointimal VSMC of mouse and human injured arteries. Transfection of miR133a and LDLRAP1 siRNA into VSMC reduces their proliferation and uptake of oxLDL. miR133a is significantly increased in plasma from hyperlipidemic compared with normolipidemic patients. Expression of miR133a in IL-19 stimulated VSMC represents a previously unrecognized link between vascular lipid metabolism and inflammation, and may represent a therapeutic opportunity to combat vascular inflammatory diseases.
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Affiliation(s)
- Khatuna Gabunia
- Department of Physiology, Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, United States
| | - Allison B Herman
- Department of Physiology, Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, United States
| | - Mitali Ray
- Department of Physiology, Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, United States
| | - Sheri E Kelemen
- Department of Physiology, Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, United States
| | - Ross N England
- Department of Physiology, Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, United States
| | - Raul DeLa Cadena
- Department of Physiology, Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, United States
| | - William J Foster
- Departments of Ophthalmology & Bioengineering, Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, United States
| | - Katherine J Elliott
- Department of Physiology, Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, United States
| | - Satoru Eguchi
- Department of Physiology, Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, United States
| | - Michael V Autieri
- Department of Physiology, Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, United States.
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140
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Loss of MyoD Promotes Fate Transdifferentiation of Myoblasts Into Brown Adipocytes. EBioMedicine 2017; 16:212-223. [PMID: 28117277 PMCID: PMC5474440 DOI: 10.1016/j.ebiom.2017.01.015] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 01/10/2017] [Accepted: 01/10/2017] [Indexed: 02/08/2023] Open
Abstract
Brown adipose tissue (BAT) represents a promising agent to ameliorate obesity and other metabolic disorders. However, the abundance of BAT decreases with age and BAT paucity is a common feature of obese subjects. As brown adipocytes and myoblasts share a common Myf5 lineage origin, elucidating the molecular mechanisms underlying the fate choices of brown adipocytes versus myoblasts may lead to novel approaches to expand BAT mass. Here we identify MyoD as a key negative regulator of brown adipocyte development. CRISPR/CAS9-mediated deletion of MyoD in C2C12 myoblasts facilitates their adipogenic transdifferentiation. MyoD knockout downregulates miR-133 and upregulates the miR-133 target Igf1r, leading to amplification of PI3K–Akt signaling. Accordingly, inhibition of PI3K or Akt abolishes the adipogenic gene expression of MyoD null myoblasts. Strikingly, loss of MyoD converts satellite cell-derived primary myoblasts to brown adipocytes through upregulation of Prdm16, a target of miR-133 and key determinant of brown adipocyte fate. Conversely, forced expression of MyoD in brown preadipocytes blocks brown adipogenesis and upregulates the expression of myogenic genes. Importantly, miR-133a knockout significantly blunts the inhibitory effect of MyoD on brown adipogenesis. Our results establish MyoD as a negative regulator of brown adipocyte development by upregulating miR-133 to suppress Akt signaling and Prdm16. Loss of MyoD facilitates adipogenic transdifferentiation of myoblasts. Overexpression of MyoD transdifferentiate brown preadipocytes to myoblasts. MyoD acts partially through miR-133 to suppress brown adipocyte cell fate.
Brown fat burns fat to produce heat, and represents a promising agent to treat obesity and its related disorders. Brown fat cells and muscle cells share a common origin, but what controls the developmental separation of the two cell types is not well understood. This study reports that inhibition of “MyoD” gene in muscle progenitors promotes their differentiation into brown fat cells in mice. Conversely, forced expression of MyoD in brown fat progenitors converts them into muscle cells. This work suggests that inhibition of MyoD may represent a future direction to expand brown fat and alleviate obesity in humans.
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141
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Lamon S, Zacharewicz E, Butchart LC, Orellana L, Mikovic J, Grounds MD, Russell AP. MicroRNA expression patterns in post-natal mouse skeletal muscle development. BMC Genomics 2017; 18:52. [PMID: 28061746 PMCID: PMC5219731 DOI: 10.1186/s12864-016-3399-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 12/08/2016] [Indexed: 01/28/2023] Open
Abstract
Background MiRNAs are essential regulators of skeletal muscle development and homeostasis. To date, the role and regulation of miRNAs in myogenesis have been mostly studied in tissue culture and during embryogenesis. However, little information relating to miRNA regulation during early post-natal skeletal muscle growth in mammals is available. Using a high-throughput miRNA qPCR-based array, followed by stringent statistical and bioinformatics analysis, we describe the expression pattern and putative role of 768 miRNAs in the quadriceps muscle of mice aged 2 days, 2 weeks, 4 weeks and 12 weeks. Results Forty-six percent of all measured miRNAs were expressed in mouse quadriceps muscle during the first 12 weeks of life. We report unprecedented changes in miRNA expression levels over time. The expression of a majority of miRNAs significantly decreased with post-natal muscle maturation in vivo. MiRNA clustering identified 2 subsets of miRNAs that are potentially involved in cell proliferation and differentiation, mainly via the regulation of non-muscle specific targets. Conclusion Collective miRNA expression in mouse quadriceps muscle is subjected to substantial levels of regulation during the first 12 weeks of age. This study identified a new suite of highly conserved miRNAs that are predicted to influence early muscle development. As such it provides novel knowledge pertaining to post-natal myogenesis and muscle regeneration in mammals. Electronic supplementary material The online version of this article (doi:10.1186/s12864-016-3399-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Séverine Lamon
- Deakin University, School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition (I-PAN), Geelong, Australia.
| | - Evelyn Zacharewicz
- Deakin University, School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition (I-PAN), Geelong, Australia
| | - Lauren C Butchart
- The University of Western Australia, School of Anatomy, Physiology and Human Biology, Perth, WA, Australia
| | - Liliana Orellana
- Deakin University, Biostatistics Unit, Faculty of Health, Geelong, Australia
| | - Jasmine Mikovic
- Deakin University, School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition (I-PAN), Geelong, Australia
| | - Miranda D Grounds
- The University of Western Australia, School of Anatomy, Physiology and Human Biology, Perth, WA, Australia
| | - Aaron P Russell
- Deakin University, School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition (I-PAN), Geelong, Australia
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142
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Sjögren RJO, Lindgren Niss MHL, Krook A. Skeletal Muscle microRNAs: Roles in Differentiation, Disease and Exercise. RESEARCH AND PERSPECTIVES IN ENDOCRINE INTERACTIONS 2017. [DOI: 10.1007/978-3-319-72790-5_6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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143
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Wang C, Wang M, Arrington J, Shan T, Yue F, Nie Y, Tao WA, Kuang S. Ascl2 inhibits myogenesis by antagonizing the transcriptional activity of myogenic regulatory factors. Development 2016; 144:235-247. [PMID: 27993983 DOI: 10.1242/dev.138099] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 12/06/2016] [Indexed: 12/12/2022]
Abstract
Myogenic regulatory factors (MRFs), including Myf5, MyoD (Myod1) and Myog, are muscle-specific transcription factors that orchestrate myogenesis. Although MRFs are essential for myogenic commitment and differentiation, timely repression of their activity is necessary for the self-renewal and maintenance of muscle stem cells (satellite cells). Here, we define Ascl2 as a novel inhibitor of MRFs. During mouse development, Ascl2 is transiently detected in a subpopulation of Pax7+ MyoD+ progenitors (myoblasts) that become Pax7+ MyoD- satellite cells prior to birth, but is not detectable in postnatal satellite cells. Ascl2 knockout in embryonic myoblasts decreases both the number of Pax7+ cells and the proportion of Pax7+ MyoD- cells. Conversely, overexpression of Ascl2 inhibits the proliferation and differentiation of cultured myoblasts and impairs the regeneration of injured muscles. Ascl2 competes with MRFs for binding to E-boxes in the promoters of muscle genes, without activating gene transcription. Ascl2 also forms heterodimers with classical E-proteins to sequester their transcriptional activity on MRF genes. Accordingly, MyoD or Myog expression rescues myogenic differentiation despite Ascl2 overexpression. Ascl2 expression is regulated by Notch signaling, a key governor of satellite cell self-renewal. These data demonstrate that Ascl2 inhibits myogenic differentiation by targeting MRFs and facilitates the generation of postnatal satellite cells.
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Affiliation(s)
- Chao Wang
- Department of Animal Science, Purdue University, West Lafayette, IN 47906, USA
| | - Min Wang
- Department of Animal Science, Purdue University, West Lafayette, IN 47906, USA
| | - Justine Arrington
- Department of Chemistry, Purdue University, West Lafayette, IN 47906, USA
| | - Tizhong Shan
- Department of Animal Science, Purdue University, West Lafayette, IN 47906, USA
| | - Feng Yue
- Department of Animal Science, Purdue University, West Lafayette, IN 47906, USA
| | - Yaohui Nie
- Department of Animal Science, Purdue University, West Lafayette, IN 47906, USA
| | - Weiguo Andy Tao
- Department of Biochemistry, Purdue University, West Lafayette, IN 47906, USA.,Center for Cancer Research, Purdue University, West Lafayette, IN 47906, USA
| | - Shihuan Kuang
- Department of Animal Science, Purdue University, West Lafayette, IN 47906, USA .,Center for Cancer Research, Purdue University, West Lafayette, IN 47906, USA
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144
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Butchart LC, Fox A, Shavlakadze T, Grounds MD. The long and short of non-coding RNAs during post-natal growth and differentiation of skeletal muscles: Focus on lncRNA and miRNAs. Differentiation 2016; 92:237-248. [DOI: 10.1016/j.diff.2016.05.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 04/29/2016] [Accepted: 05/09/2016] [Indexed: 10/21/2022]
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145
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Makhdoumi P, Roohbakhsh A, Karimi G. MicroRNAs regulate mitochondrial apoptotic pathway in myocardial ischemia-reperfusion-injury. Biomed Pharmacother 2016; 84:1635-1644. [DOI: 10.1016/j.biopha.2016.10.073] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 10/16/2016] [Accepted: 10/24/2016] [Indexed: 12/30/2022] Open
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146
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Shim J, Nam JW. The expression and functional roles of microRNAs in stem cell differentiation. BMB Rep 2016; 49:3-10. [PMID: 26497582 PMCID: PMC4914210 DOI: 10.5483/bmbrep.2016.49.1.217] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Indexed: 01/23/2023] Open
Abstract
microRNAs (miRNAs) are key regulators of cell state transition and retention during stem cell proliferation and differentiation by post-transcriptionally downregulating hundreds of conserved target genes via seed-pairing in their 3' untranslated region. In embryonic and adult stem cells, dozens of miRNAs that elaborately control stem cell processes by modulating the transcriptomic context therein have been identified. Some miRNAs accelerate the change of cell state into progenitor cell lineages-such as myoblast, myeloid or lymphoid progenitors, and neuro precursor stem cells-and other miRNAs decelerate the change but induce proliferative activity, resulting in cell state retention. This cell state choice can be controlled by endogenously or exogenously changing miRNA levels or by including or excluding target sites. This control of miRNA-mediated gene regulation could improve our understanding of stem cell biology and facilitate their development as therapeutic tools.
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Affiliation(s)
- Jiwon Shim
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Jin-Wu Nam
- Department of Life Science, College of Natural Sciences and Research Institute of Natural Sciences, Hanyang University, Seoul 04763, Korea
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147
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Zhang Y, Yu B, He J, Chen D. From Nutrient to MicroRNA: a Novel Insight into Cell Signaling Involved in Skeletal Muscle Development and Disease. Int J Biol Sci 2016; 12:1247-1261. [PMID: 27766039 PMCID: PMC5069446 DOI: 10.7150/ijbs.16463] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 08/19/2016] [Indexed: 12/17/2022] Open
Abstract
Skeletal muscle is a remarkably complicated organ comprising many different cell types, and it plays an important role in lifelong metabolic health. Nutrients, as an external regulator, potently regulate skeletal muscle development through various internal regulatory factors, such as mammalian target of rapamycin (mTOR) and microRNAs (miRNAs). As a nutrient sensor, mTOR, integrates nutrient availability to regulate myogenesis and directly or indirectly influences microRNA expression. MiRNAs, a class of small non-coding RNAs mediating gene silencing, are implicated in myogenesis and muscle-related diseases. Meanwhile, growing evidence has emerged supporting the notion that the expression of myogenic miRNAs could be regulated by nutrients in an epigenetic mechanism. Therefore, this review presents a novel insight into the cell signaling network underlying nutrient-mTOR-miRNA pathway regulation of skeletal myogenesis and summarizes the epigenetic modifications in myogenic differentiation, which will provide valuable information for potential therapeutic intervention.
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Affiliation(s)
- Yong Zhang
- Institute of Animal Nutrition, Sichuan Agricultural University, Ya'an, Sichuan 625014, P. R. China.; Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, China
| | - Bing Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Ya'an, Sichuan 625014, P. R. China.; Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, China
| | - Jun He
- Institute of Animal Nutrition, Sichuan Agricultural University, Ya'an, Sichuan 625014, P. R. China.; Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, China
| | - Daiwen Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Ya'an, Sichuan 625014, P. R. China.; Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, China
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148
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Pershing ML, Phenis D, Valentini V, Pocivavsek A, Lindquist DH, Schwarcz R, Bruno JP. Prenatal kynurenine exposure in rats: age-dependent changes in NMDA receptor expression and conditioned fear responding. Psychopharmacology (Berl) 2016; 233:3725-3735. [PMID: 27527585 PMCID: PMC5808405 DOI: 10.1007/s00213-016-4404-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 08/02/2016] [Indexed: 10/21/2022]
Abstract
RATIONALE Levels of kynurenic acid (KYNA), an endogenous negative modulator of alpha 7 nicotinic acetylcholine receptors (α7nAChRs) and antagonist at glutamatergic N-methyl-D-aspartate receptors (NMDARs), are elevated in the brain of patients with schizophrenia (SZ). In rats, dietary exposure to KYNA's immediate precursor kynurenine during the last week of gestation produces neurochemical and cognitive deficits in adulthood that resemble those seen in patients with SZ. OBJECTIVES The present experiments examined whether prenatal kynurenine exposure results in age-dependent changes in the kynurenine pathway (KP), expression of selected receptors, and cognitive function. METHODS Pregnant dams were fed unadulterated mash (progeny = ECON) or mash containing kynurenine (100 mg/day; progeny = EKYN) from embryonic day (ED) 15 to 22. Male offspring were assessed as juveniles, i.e., prior to puberty (postnatal day [PD] 32), or as adults (PD70) for brain KYNA levels, α7nAChR and NMDAR gene expression, and performance on a trace fear conditioning (TFC) task. RESULTS KYNA levels were comparable between juvenile ECON and EKYN rats, whereas EKYN adults exhibited a ~3-fold increase in brain KYNA relative to ECONs. NR2A expression was persistently reduced (30-40 %) in EKYN rats at both ages. Compared to ECON adults, there was a 50 % reduction in NR1, and a trend toward decreased α7nAChR expression, in adult EKYN rats. Surprisingly, juvenile EKYN rats performed significantly better in the TFC paradigm than controls, whereas adult EKYN animals showed the predicted deficits. CONCLUSIONS Collectively, our results provide evidence that KP changes in the fetal brain alter neuronal development and cause age-dependent effects on neurochemistry and cognitive performance.
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Affiliation(s)
| | - David Phenis
- Department of Neuroscience, The Ohio State University, Columbus, OH, USA
| | | | - Ana Pocivavsek
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Derick H. Lindquist
- Department of Psychology, The Ohio State University, Columbus, OH, USA,Department of Neuroscience, The Ohio State University, Columbus, OH, USA
| | - Robert Schwarcz
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - John P. Bruno
- Department of Psychology, The Ohio State University, Columbus, OH, USA,Department of Neuroscience, The Ohio State University, Columbus, OH, USA
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149
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Duan Y, Zhou M, Xiao J, Wu C, Zhou L, Zhou F, Du C, Song Y. Prediction of key genes and miRNAs responsible for loss of muscle force in patients during an acute exacerbation of chronic obstructive pulmonary disease. Int J Mol Med 2016; 38:1450-1462. [PMID: 28025995 PMCID: PMC5065306 DOI: 10.3892/ijmm.2016.2761] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 08/30/2016] [Indexed: 12/16/2022] Open
Abstract
The present study aimed to identify genes and microRNAs (miRNAs or miRs) that were abnormally expressed in the vastus lateralis muscle of patients with acute exacerbations of chronic obstructive pulmonary disease (AECOPD). The gene expression profile of GSE10828 was downloaded from the Gene Expression Omnibus database, and this dataset was comprised of 4 samples from patients with AECOPD and 5 samples from patients with stable COPD. Differentially expressed genes (DEGs) were screened using the Limma package in R. A protein-protein interaction (PPI) network of DEGs was built based on the STRING database. Module analysis of the PPI network was performed using the ClusterONE plugin and functional analysis of DEGs was conducted using DAVID. Additionally, key miRNAs were enriched using gene set enrichment analysis (GSEA) software and a miR-gene regulatory network was constructed using Cytoscape software. In total, 166 up- and 129 downregulated DEGs associated with muscle weakness in AECOPD were screened. Among them, NCL, GOT1, TMOD1, TSPO, SOD2, NCL and PA2G4 were observed in the modules consisting of upregulated or downregulated genes. The upregulated DEGs in modules (including KLF6 and XRCC5) were enriched in GO terms associated with immune system development, whereas the downregulated DEGs were enriched in GO terms associated with cell death and muscle contraction. Additionally, 39 key AECOPD-related miRNAs were also predicted, including miR-1, miR-9 and miR-23a, miR-16 and miR-15a. In conclusion, DEGs (NCL, GOT1, SOD2, KLF6, XRCC5, TSPO and TMOD1) and miRNAs (such as miR-1, miR-9 and miR-23a) may be associated with the loss of muscle force in patients during an acute exacerbation of COPD which also may act as therapeutic targets in the treatment of AECOPD.
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Affiliation(s)
- Yanhong Duan
- Department of Respiratory Medicine, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, P.R. China
| | - Min Zhou
- Department of Respiratory Medicine, Jinshan Branch of The Sixth People's Hospital of Shanghai, Shanghai 201599, P.R. China
| | - Jian Xiao
- Department of Respiratory Medicine, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, P.R. China
| | - Chaomin Wu
- Department of Respiratory Medicine, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, P.R. China
| | - Lei Zhou
- Department of Respiratory Medicine, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, P.R. China
| | - Feng Zhou
- Department of Respiratory Medicine, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, P.R. China
| | - Chunling Du
- Department of Respiratory Medicine, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, P.R. China
| | - Yuanlin Song
- Department of Respiratory Medicine, Zhongshan Hospital, Fudan University, Shanghai 201700, P.R. China
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150
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Bersani F, Lingua MF, Morena D, Foglizzo V, Miretti S, Lanzetti L, Carrà G, Morotti A, Ala U, Provero P, Chiarle R, Singer S, Ladanyi M, Tuschl T, Ponzetto C, Taulli R. Deep Sequencing Reveals a Novel miR-22 Regulatory Network with Therapeutic Potential in Rhabdomyosarcoma. Cancer Res 2016; 76:6095-6106. [PMID: 27569217 DOI: 10.1158/0008-5472.can-16-0709] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 07/28/2016] [Indexed: 12/12/2022]
Abstract
Current therapeutic options for the pediatric cancer rhabdomyosarcoma have not improved significantly, especially for metastatic rhabdomyosarcoma. In the current work, we performed a deep miRNA profiling of the three major human rhabdomyosarcoma subtypes, along with cell lines and normal muscle, to identify novel molecular circuits with therapeutic potential. The signature we determined could discriminate rhabdomyosarcoma from muscle, revealing a subset of muscle-enriched miRNA (myomiR), including miR-22, which was strongly underexpressed in tumors. miR-22 was physiologically induced during normal myogenic differentiation and was transcriptionally regulated by MyoD, confirming its identity as a myomiR. Once introduced into rhabdomyosarcoma cells, miR-22 decreased cell proliferation, anchorage-independent growth, invasiveness, and promoted apoptosis. Moreover, restoring miR-22 expression blocked tumor growth and prevented tumor dissemination in vivo Gene expression profiling analysis of miR-22-expressing cells suggested TACC1 and RAB5B as possible direct miR-22 targets. Accordingly, loss- and gain-of-function experiments defined the biological relevance of these genes in rhabdomyosarcoma pathogenesis. Finally, we demonstrated the ability of miR-22 to intercept and overcome the intrinsic resistance to MEK inhibition based on ERBB3 upregulation. Overall, our results identified a novel miR-22 regulatory network with critical therapeutic implications in rhabdomyosarcoma. Cancer Res; 76(20); 6095-106. ©2016 AACR.
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Affiliation(s)
- Francesca Bersani
- Department of Oncology, University of Turin, Orbassano, Turin, Italy. CeRMS, Center for Experimental Research and Medical Studies, Turin, Italy
| | - Marcello Francesco Lingua
- Department of Oncology, University of Turin, Orbassano, Turin, Italy. CeRMS, Center for Experimental Research and Medical Studies, Turin, Italy
| | - Deborah Morena
- Department of Oncology, University of Turin, Orbassano, Turin, Italy. CeRMS, Center for Experimental Research and Medical Studies, Turin, Italy
| | - Valentina Foglizzo
- Department of Oncology, University of Turin, Orbassano, Turin, Italy. CeRMS, Center for Experimental Research and Medical Studies, Turin, Italy
| | - Silvia Miretti
- Department of Veterinary Science, University of Turin, Grugliasco, Italy
| | - Letizia Lanzetti
- Department of Oncology, University of Turin, Orbassano, Turin, Italy. Candiolo Cancer Institute, Candiolo, Turin, Italy
| | - Giovanna Carrà
- Department of Clinical and Biological Sciences, University of Turin, Orbassano, Italy
| | - Alessandro Morotti
- Department of Clinical and Biological Sciences, University of Turin, Orbassano, Italy
| | - Ugo Ala
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Paolo Provero
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Roberto Chiarle
- CeRMS, Center for Experimental Research and Medical Studies, Turin, Italy. Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy. Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Samuel Singer
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Marc Ladanyi
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Thomas Tuschl
- Department of RNA Molecular Biology, Howard Hughes Medical Institute, The Rockefeller University, New York, New York
| | - Carola Ponzetto
- Department of Oncology, University of Turin, Orbassano, Turin, Italy. CeRMS, Center for Experimental Research and Medical Studies, Turin, Italy.
| | - Riccardo Taulli
- Department of Oncology, University of Turin, Orbassano, Turin, Italy. CeRMS, Center for Experimental Research and Medical Studies, Turin, Italy.
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