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Della Gaspera B, Chanoine C. [The lateral somitic frontier: The source of multipotent somitic cells in Xenopus]. Med Sci (Paris) 2023; 39:967-974. [PMID: 38108728 DOI: 10.1051/medsci/2023181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023] Open
Abstract
The somites are embryonic structures that give rise to the axial musculoskeletal system. In amniotes vertebrates, somites are composed of multipotent somitic cells that quickly compartmentalize into a dorsal dermomyotome and a ventral sclerotome. In the somites, the dermomyotome gives rise to skeletal muscle cells (the myotome) and the dorsal dermis (the dermatome), while the sclerotome gives rise to vertebrae, ribs, and dorsal tendons (the syndetome). The compartmentalization pattern differs in anamniotes, with the establishment of a primitive myotome that begins before somite formation while the LSF (lateral somitic frontier) give rise to both the sclerotome and the dermomyotome in Xenopus. In this synthesis, we describe the contribution of the LSF in establishing somitic lineages in Xenopus and propose a model that traces the evolutionary history of somites back to ancestral precursors associated with striated skeletal muscle.
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Affiliation(s)
- Bruno Della Gaspera
- Université Paris Cité, Inserm U1124, campus Saint-Germain, 45 rue des saints-pères, 75006 Paris, France
| | - Christophe Chanoine
- Université Paris Cité, Inserm U1124, campus Saint-Germain, 45 rue des saints-pères, 75006 Paris, France
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Zhuang X, Xie F, Lin Z, Luo J, Chen T, Xi Q, Zhang Y, Sun J. Effect of miR-493-5p on proliferation and differentiation of myoblast by targeting ANKRD17. Cell Tissue Res 2023:10.1007/s00441-023-03777-3. [PMID: 37178193 DOI: 10.1007/s00441-023-03777-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 04/20/2023] [Indexed: 05/15/2023]
Abstract
The hypertrophy and conversion of postnatal muscle fibers largely determine the yield and quality of meat, which is closely related to the economic value of pigs. MicroRNA (miRNA), as a kind of endogenous noncoding RNA molecule, is widely involved in myogenesis of livestock and poultry. The longissimus dorsi tissues of Lantang pigs at 1 and 90 days (LT1D and LT90D) were collected and profiled by miRNA-seq. We found 1871 and 1729 miRNA candidates in LT1D and LT90D samples, and 794 miRNAs were shared. We identified 16 differentially expressed miRNAs between two tested groups and explored the function of miR-493-5p inmyogenesis. The miR-493-5p promoted the proliferation and inhibited the differentiation of myoblasts. Using GO and KEGG analyses of 164 target genes of miR-493-5p, we found that ATP2A2, PPP3CA, KLF15, MED28, and ANKRD17 genes were related to muscle development. RT-qPCR detection showed that the expression level of ANKRD17 was highly expressed in LT1D libraries, and the double luciferase report test preliminarily proved that miR-493-5p and ANKRD17 have a directly targeting relationship. We established miRNA profiles for the longissimus dorsi tissues of 1-day-old and 90-day-old Lantang pigs and found that miR-493-5p was differentially expressed and associated with myogenesis by targeting ANKRD17 gene. Our results should serve as a reference for future studies on pork quality.
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Affiliation(s)
- Xiaona Zhuang
- College of Animal Science, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Fang Xie
- College of Animal Science, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Zekun Lin
- College of Animal Science, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Junyi Luo
- College of Animal Science, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Ting Chen
- College of Animal Science, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Qianyun Xi
- College of Animal Science, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Yongliang Zhang
- College of Animal Science, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, 510642, Guangdong, China.
| | - Jiajie Sun
- College of Animal Science, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, 510642, Guangdong, China.
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Narasimhan M, Hong J, Atieno N, Muthusamy VR, Davidson CJ, Abu-Rmaileh N, Richardson RS, Gomes AV, Hoidal JR, Rajasekaran NS. Nrf2 deficiency promotes apoptosis and impairs PAX7/MyoD expression in aging skeletal muscle cells. Free Radic Biol Med 2014; 71:402-414. [PMID: 24613379 PMCID: PMC4493911 DOI: 10.1016/j.freeradbiomed.2014.02.023] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2013] [Revised: 02/17/2014] [Accepted: 02/25/2014] [Indexed: 12/20/2022]
Abstract
Skeletal muscle redox homeostasis is transcriptionally regulated by nuclear erythroid-2-p45-related factor-2 (Nrf2). We recently demonstrated that age-associated stress impairs Nrf2-ARE (antioxidant-response element) transcriptional signaling. Here, we hypothesize that age-dependent decline or genetic ablation of Nrf2 leads to accelerated apoptosis and skeletal muscle degeneration. Under basal-physiological conditions, disruption of Nrf2 significantly downregulates antioxidants and causes oxidative stress. Surprisingly, Nrf2-null mice had enhanced antioxidant capacity identical to wild-type (WT) upon acute endurance exercise stress (AEES), suggesting activation of Nrf2-independent mechanisms (i.e., PGC1α) against oxidative stress. Analysis of prosurvival pathways in the basal state reveals decreased AKT levels, whereas p-p53, a repressor of AKT, was increased in Nrf2-null vs WT mice. Upon AEES, AKT and p-AKT levels were significantly (p < 0.001) increased (>10-fold) along with profound downregulation of p-p53 (p < 0.01) in Nrf2-null vs WT skeletal muscle, indicating the onset of prosurvival mechanisms to compensate for the loss of Nrf2 signaling. However, we found a decreased stem cell population (PAX7) and MyoD expression (differentiation) along with profound activation of ubiquitin and apoptotic pathways in Nrf2-null vs WT mice upon AEES, suggesting that compensatory prosurvival mechanisms failed to overcome the programmed cell death and degeneration in skeletal muscle. Further, the impaired regeneration was sustained in Nrf2-null vs WT mice after 1 week of post-AEES recovery. In an age-associated oxidative stress condition, ablation of Nrf2 results in induction of apoptosis and impaired muscle regeneration.
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Affiliation(s)
- Madhusudhanan Narasimhan
- Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Cardiac Aging and Redox Signaling Laboratory, Division of Cardiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132, USA
| | - Jennifer Hong
- Cardiac Aging and Redox Signaling Laboratory, Division of Cardiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132, USA
| | - Nancy Atieno
- Cardiac Aging and Redox Signaling Laboratory, Division of Cardiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132, USA
| | - Vasanthi R Muthusamy
- Cardiac Aging and Redox Signaling Laboratory, Division of Cardiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132, USA
| | - Christopher J Davidson
- Cardiac Aging and Redox Signaling Laboratory, Division of Cardiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132, USA
| | - Naser Abu-Rmaileh
- Cardiac Aging and Redox Signaling Laboratory, Division of Cardiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132, USA
| | - Russell S Richardson
- Division of Geriatrics, and Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132, USA; Department of Exercise & Sports Sciences, College of Health, University of Utah, Salt Lake City, UT 84112, USA; Geriatric Research, Education, and Clinical Center, Salt Lake City Veteran's Medical Center
| | | | - John R Hoidal
- Division of Pulmonary Medicine, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132, USA
| | - Namakkal S Rajasekaran
- Cardiac Aging and Redox Signaling Laboratory, Division of Cardiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132, USA; Department of Exercise & Sports Sciences, College of Health, University of Utah, Salt Lake City, UT 84112, USA.
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Mayeuf A, Relaix F. [Notch pathway: from development to regeneration of skeletal muscle]. Med Sci (Paris) 2011; 27:521-6. [PMID: 21609674 DOI: 10.1051/medsci/2011275018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
In vertebrates, skeletal muscle is derived from mesodermal structures called somites. Myogenic progenitor cells that form skeletal muscles of the trunk and limbs are derived from the dermomyotome, the dorsal region of the somite. These cells enter the myogenic program by activating a set of four myogenic regulatory factors. During embryonic and fetal growth, muscle progenitor cells provide the source for muscle growth. Around birth, the muscle progenitor enters quiescence, and adopts a satellite cell position on muscle fibers, providing a pool of adult muscle stem cells. They are essential for the growth and regeneration of muscles. Among the mechanisms that control the maintenance of satellite cells properties, the Notch pathway plays a crucial role. In facts, this pathway is implicated from the early steps of somitogenesis and the development of skeletal muscles in the embryo. Furthermore, during ageing, Notch activity decreases which results in decreased muscle regeneration. Thus, the Notch pathway is a key regulator of muscle plasticity.
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Affiliation(s)
- Alicia Mayeuf
- CNRS URA 2578, département de biologie du développement, Institut Pasteur, 25, rue du Docteur Roux, 75015 Paris, France
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Boutet SC, Rando TA. [Proteasomal degradation of Pax3 in skeletal muscle progenitors: one ubiquitin does the trick!]. Med Sci (Paris) 2008; 24:31-3. [PMID: 18198106 DOI: 10.1051/medsci/200824131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Stéphane C Boutet
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA.
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