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Granados A, Zamperoni M, Rapone R, Moulin M, Boyarchuk E, Bouyioukos C, Del Maestro L, Joliot V, Negroni E, Mohamed M, Piquet S, Bigot A, Le Grand F, Albini S, Ait-Si-Ali S. SETDB1 modulates the TGFβ response in Duchenne muscular dystrophy myotubes. Sci Adv 2024; 10:eadj8042. [PMID: 38691608 PMCID: PMC11062573 DOI: 10.1126/sciadv.adj8042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 03/28/2024] [Indexed: 05/03/2024]
Abstract
Overactivation of the transforming growth factor-β (TGFβ) signaling in Duchenne muscular dystrophy (DMD) is a major hallmark of disease progression, leading to fibrosis and muscle dysfunction. Here, we investigated the role of SETDB1 (SET domain, bifurcated 1), a histone lysine methyltransferase involved in muscle differentiation. Our data show that, following TGFβ induction, SETDB1 accumulates in the nuclei of healthy myotubes while being already present in the nuclei of DMD myotubes where TGFβ signaling is constitutively activated. Transcriptomics revealed that depletion of SETDB1 in DMD myotubes leads to down-regulation of TGFβ target genes coding for secreted factors involved in extracellular matrix remodeling and inflammation. Consequently, SETDB1 silencing in DMD myotubes abrogates the deleterious effect of their secretome on myoblast differentiation by impairing myoblast pro-fibrotic response. Our findings indicate that SETDB1 potentiates the TGFβ-driven fibrotic response in DMD muscles, providing an additional axis for therapeutic intervention.
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Affiliation(s)
- Alice Granados
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, F-75013 Paris, France
| | - Maeva Zamperoni
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, F-75013 Paris, France
| | - Roberta Rapone
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, F-75013 Paris, France
| | - Maryline Moulin
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, F-75013 Paris, France
| | - Ekaterina Boyarchuk
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, F-75013 Paris, France
| | - Costas Bouyioukos
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, F-75013 Paris, France
| | - Laurence Del Maestro
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, F-75013 Paris, France
| | - Véronique Joliot
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, F-75013 Paris, France
| | - Elisa Negroni
- Sorbonne Université, Inserm, Institut de Myologie, Centre de Recherche en Myologie, Paris, France
| | - Myriame Mohamed
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, F-75013 Paris, France
| | - Sandra Piquet
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, F-75013 Paris, France
| | - Anne Bigot
- Sorbonne Université, Inserm, Institut de Myologie, Centre de Recherche en Myologie, Paris, France
| | - Fabien Le Grand
- Université Claude Bernard Lyon 1, CNRS UMR 5261, INSERM U1315, Institut NeuroMyoGène, Pathophysiology and Genetics of Neuron and Muscle (PGNM) Unit, 69008 Lyon, France
| | - Sonia Albini
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, F-75013 Paris, France
| | - Slimane Ait-Si-Ali
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, F-75013 Paris, France
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2
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Mouradian S, Cicciarello D, Lacoste N, Risson V, Berretta F, Le Grand F, Rose N, Simonet T, Schaeffer L, Scionti I. LSD1 controls a nuclear checkpoint in Wnt/β-Catenin signaling to regulate muscle stem cell self-renewal. Nucleic Acids Res 2024; 52:3667-3681. [PMID: 38321961 DOI: 10.1093/nar/gkae060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 01/11/2024] [Accepted: 01/18/2024] [Indexed: 02/08/2024] Open
Abstract
The Wnt/β-Catenin pathway plays a key role in cell fate determination during development and in adult tissue regeneration by stem cells. These processes involve profound gene expression and epigenome remodeling and linking Wnt/β-Catenin signaling to chromatin modifications has been a challenge over the past decades. Functional studies of the lysine demethylase LSD1/KDM1A converge to indicate that this epigenetic regulator is a key regulator of cell fate, although the extracellular cues controlling LSD1 action remain largely unknown. Here we show that β-Catenin is a substrate of LSD1. Demethylation by LSD1 prevents β-Catenin degradation thereby maintaining its nuclear levels. Consistently, in absence of LSD1, β-Catenin transcriptional activity is reduced in both MuSCs and ESCs. Moreover, inactivation of LSD1 in mouse muscle stem cells and embryonic stem cells shows that LSD1 promotes mitotic spindle orientation via β-Catenin protein stabilization. Altogether, by inscribing LSD1 and β-Catenin in the same molecular cascade linking extracellular factors to gene expression, our results provide a mechanistic explanation to the similarity of action of canonical Wnt/β-Catenin signaling and LSD1 on stem cell fate.
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Affiliation(s)
- Sandrine Mouradian
- Pathophysiology and Genetics of Neuron and Muscle (PGNM), Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR5261, INSERM U1315, Faculté de Médecine Rockefeller, France
| | - Delia Cicciarello
- Pathophysiology and Genetics of Neuron and Muscle (PGNM), Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR5261, INSERM U1315, Faculté de Médecine Rockefeller, France
| | - Nicolas Lacoste
- Pathophysiology and Genetics of Neuron and Muscle (PGNM), Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR5261, INSERM U1315, Faculté de Médecine Rockefeller, France
| | - Valérie Risson
- Pathophysiology and Genetics of Neuron and Muscle (PGNM), Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR5261, INSERM U1315, Faculté de Médecine Rockefeller, France
| | - Francesca Berretta
- Pathophysiology and Genetics of Neuron and Muscle (PGNM), Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR5261, INSERM U1315, Faculté de Médecine Rockefeller, France
| | - Fabien Le Grand
- Sorbonne Université, UPMC Université Paris 06, INSERM UMRS974, CNRS FRE3617, Center for Research in Myology, 75013 Paris, France
| | - Nicolas Rose
- Sorbonne Université, UPMC Université Paris 06, INSERM UMRS974, CNRS FRE3617, Center for Research in Myology, 75013 Paris, France
| | - Thomas Simonet
- Pathophysiology and Genetics of Neuron and Muscle (PGNM), Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR5261, INSERM U1315, Faculté de Médecine Rockefeller, France
| | - Laurent Schaeffer
- Pathophysiology and Genetics of Neuron and Muscle (PGNM), Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR5261, INSERM U1315, Faculté de Médecine Rockefeller, France
- Centre de Biotechnologie Cellulaire, Hospices Civils de Lyon, groupement Est, Bron, France
| | - Isabella Scionti
- Pathophysiology and Genetics of Neuron and Muscle (PGNM), Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR5261, INSERM U1315, Faculté de Médecine Rockefeller, France
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3
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Garcia P, Le Grand F. [Histone methyltransferases and regenerative myogenesis: A focus on SETDB1]. Med Sci (Paris) 2023; 39 Hors série n° 1:11-14. [PMID: 37975764 DOI: 10.1051/medsci/2023145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023] Open
Abstract
Adult skeletal muscle is composed of thousands of fibers (also called myofibers) that contract thus allowing voluntary movements. Following an injury, muscle stem cells, surrounding the myofibers, activate, proliferate, and differentiate to form de novo myofibers. These steps constitute a process called adult (or regenerative) myogenesis. This process is possible thanks to various transcription factors sequentially expressed and regulated by epigenetic factors that modulate the chromatin and therefore lead to the regulation of gene expression. Gene expression changes consequently affect the fate of muscle stem cells. Histone Lysine Methyltransferases methylate some histones involved in the repression of gene expression. We describe here the role of SETDB1 during adult myogenesis, notably its role during muscle stem cell differentiation.
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Affiliation(s)
- Pauline Garcia
- Institut NeuroMyoGène, CNRS UMR 5261 -INSERM U1315, Université de Lyon - Université Claude Bernard Lyon 1, France
| | - Fabien Le Grand
- Institut NeuroMyoGène, CNRS UMR 5261 -INSERM U1315, Université de Lyon - Université Claude Bernard Lyon 1, France
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4
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Kotsaris G, Qazi TH, Bucher CH, Zahid H, Pöhle-Kronawitter S, Ugorets V, Jarassier W, Börno S, Timmermann B, Giesecke-Thiel C, Economides AN, Le Grand F, Vallecillo-García P, Knaus P, Geissler S, Stricker S. Odd skipped-related 1 controls the pro-regenerative response of fibro-adipogenic progenitors. NPJ Regen Med 2023; 8:19. [PMID: 37019910 PMCID: PMC10076435 DOI: 10.1038/s41536-023-00291-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 03/17/2023] [Indexed: 04/07/2023] Open
Abstract
Skeletal muscle regeneration requires the coordinated interplay of diverse tissue-resident- and infiltrating cells. Fibro-adipogenic progenitors (FAPs) are an interstitial cell population that provides a beneficial microenvironment for muscle stem cells (MuSCs) during muscle regeneration. Here we show that the transcription factor Osr1 is essential for FAPs to communicate with MuSCs and infiltrating macrophages, thus coordinating muscle regeneration. Conditional inactivation of Osr1 impaired muscle regeneration with reduced myofiber growth and formation of excessive fibrotic tissue with reduced stiffness. Osr1-deficient FAPs acquired a fibrogenic identity with altered matrix secretion and cytokine expression resulting in impaired MuSC viability, expansion and differentiation. Immune cell profiling suggested a novel role for Osr1-FAPs in macrophage polarization. In vitro analysis suggested that increased TGFβ signaling and altered matrix deposition by Osr1-deficient FAPs actively suppressed regenerative myogenesis. In conclusion, we show that Osr1 is central to FAP function orchestrating key regenerative events such as inflammation, matrix secretion and myogenesis.
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Affiliation(s)
- Georgios Kotsaris
- Institute of Chemistry and Biochemistry, Musculoskeletal Development and Regeneration Group, Freie Universität Berlin, Thielallee 63, 14195, Berlin, Germany
- Berlin-Brandenburg School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, 13353, Berlin, Germany
| | - Taimoor H Qazi
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Julius Wolff Institute, Augustenburger Platz 1, 13353, Berlin, Germany
- Department of Bioengineering, University of Pennsylvania, 19104, Philadelphia, USA
- Weldon School of Biomedical Engineering, Purdue University, 47907, West Lafayette, IN, USA
| | - Christian H Bucher
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Julius Wolff Institute, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Charitéplatz 1, 10117, Berlin, Germany
| | - Hafsa Zahid
- Institute of Chemistry and Biochemistry, Musculoskeletal Development and Regeneration Group, Freie Universität Berlin, Thielallee 63, 14195, Berlin, Germany
- International Max Planck Research School for Biology and Computing IMPRS-BAC, Berlin, Germany
- Max Planck Institute for Molecular Genetics, Ihnestrasse 73, 14195, Berlin, Germany
| | - Sophie Pöhle-Kronawitter
- Institute of Chemistry and Biochemistry, Musculoskeletal Development and Regeneration Group, Freie Universität Berlin, Thielallee 63, 14195, Berlin, Germany
| | - Vladimir Ugorets
- Institute of Chemistry and Biochemistry, Cell Signaling Group, Freie Universität Berlin, Thielallee 63, 14195, Berlin, Germany
| | - William Jarassier
- Institut NeuroMyoGène, CNRS UMR 5261, Inserm U1315, Université Claude Bernard Lyon 1, 69008, Lyon, France
| | - Stefan Börno
- Max Planck Institute for Molecular Genetics, Ihnestrasse 73, 14195, Berlin, Germany
| | - Bernd Timmermann
- Max Planck Institute for Molecular Genetics, Ihnestrasse 73, 14195, Berlin, Germany
| | | | | | - Fabien Le Grand
- Institut NeuroMyoGène, CNRS UMR 5261, Inserm U1315, Université Claude Bernard Lyon 1, 69008, Lyon, France
| | - Pedro Vallecillo-García
- Institute of Chemistry and Biochemistry, Musculoskeletal Development and Regeneration Group, Freie Universität Berlin, Thielallee 63, 14195, Berlin, Germany
| | - Petra Knaus
- Berlin-Brandenburg School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, 13353, Berlin, Germany
- Institute of Chemistry and Biochemistry, Cell Signaling Group, Freie Universität Berlin, Thielallee 63, 14195, Berlin, Germany
| | - Sven Geissler
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Julius Wolff Institute, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Charitéplatz 1, 10117, Berlin, Germany
- Berlin Center for Advanced Therapies (BECAT), Charité Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin, Germany
| | - Sigmar Stricker
- Institute of Chemistry and Biochemistry, Musculoskeletal Development and Regeneration Group, Freie Universität Berlin, Thielallee 63, 14195, Berlin, Germany.
- Berlin-Brandenburg School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, 13353, Berlin, Germany.
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5
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Rose N, Estrada Chavez B, Sonam S, Nguyen T, Grenci G, Bigot A, Muchir A, Ladoux B, Cadot B, Le Grand F, Trichet L. Bioengineering a miniaturized in vitro 3D myotube contraction monitoring chip to model muscular dystrophies. Biomaterials 2023; 293:121935. [PMID: 36584444 DOI: 10.1016/j.biomaterials.2022.121935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/17/2022] [Accepted: 11/27/2022] [Indexed: 12/15/2022]
Abstract
Quantification of skeletal muscle functional contraction is essential to assess the outcomes of therapeutic procedures for neuromuscular disorders. Muscle three-dimensional "Organ-on-chip" models usually require a substantial amount of biological material, which rarely can be obtained from patient biopsies. Here, we developed a miniaturized 3D myotube culture chip with contraction monitoring capacity at the single cell level. Optimized micropatterned substrate design enabled to obtain high culture yields in tightly controlled microenvironments, with myotubes derived from primary human myoblasts displaying spontaneous contractions. Analysis of nuclear morphology confirmed similar myonuclei structure between obtained myotubes and in vivo myofibers, as compared to 2D monolayers. LMNA-related Congenital Muscular Dystrophy (L-CMD) was modeled with successful development of diseased 3D myotubes displaying reduced contraction. The miniaturized myotube technology can thus be used to study contraction characteristics and evaluate how diseases affect muscle organization and force generation. Importantly, it requires significantly fewer starting materials than current systems, which should substantially improve drug screening capability.
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Affiliation(s)
- Nicolas Rose
- Sorbonne Université, Inserm UMRS 974, Centre de Recherche en Myologie, 75013, Paris, France.
| | - Berenice Estrada Chavez
- Sorbonne Université, Inserm UMRS 974, Centre de Recherche en Myologie, 75013, Paris, France.
| | - Surabhi Sonam
- Université Paris Cité, CNRS, Institut Jacques Monod, F-75013, Paris, France.
| | - Thao Nguyen
- Université Paris Cité, CNRS, Institut Jacques Monod, F-75013, Paris, France.
| | - Gianluca Grenci
- Mechanobiology Institute, National University of Singapore, 117411, Singapore.
| | - Anne Bigot
- Sorbonne Université, Inserm UMRS 974, Centre de Recherche en Myologie, 75013, Paris, France.
| | - Antoine Muchir
- Sorbonne Université, Inserm UMRS 974, Centre de Recherche en Myologie, 75013, Paris, France.
| | - Benoît Ladoux
- Université Paris Cité, CNRS, Institut Jacques Monod, F-75013, Paris, France.
| | - Bruno Cadot
- Sorbonne Université, Inserm UMRS 974, Centre de Recherche en Myologie, 75013, Paris, France.
| | - Fabien Le Grand
- Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR 5310, INSERM U1217, 69008, Lyon, France.
| | - Léa Trichet
- Sorbonne Université, CNRS UMR 7574, Laboratoire de Chimie de La Matière Condensée de Paris, 75005, Paris, France.
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6
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He GJ, Galvis J, Cheung TH, Le Grand F. Single-Cell Transcriptomic Analysis of Mononuclear Cell Populations in Skeletal Muscle. Methods Mol Biol 2023; 2640:369-395. [PMID: 36995608 DOI: 10.1007/978-1-0716-3036-5_26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
Skeletal muscle possesses a remarkable regenerative capacity, mainly relying on a population of undifferentiated and unipotent muscle progenitors, called muscle stem cells (MuSCs) or satellite cells, and their interplay with various cell types within the niche. Investigating the cellular composition of skeletal muscle tissues and the heterogeneity among various cell populations is crucial to the unbiased understanding of how cellular networks work in harmony at the population level in the context of skeletal muscle homeostasis, regeneration, aging, and diseases. As opposed to probing the average profile in a cell population, single-cell RNA-seq has unlocked access to the transcriptomic landscape characterization of individual cells in a highly parallel manner. This chapter describes the workflow for single-cell transcriptomic analysis of mononuclear cells in skeletal muscle by taking advantage of the droplet-based single-cell RNA-seq platform, Chromium Single Cell 3' solution from 10x Genomics®. Using this protocol, we can reveal insights into muscle-resident cell-type identities, which can be exploited to study the muscle stem cell niche further.
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Affiliation(s)
- Gary J He
- Division of Life Science, Center for Stem Cell Research, HKUST-Nan Fung Life Sciences Joint Laboratory, State Key Laboratory of Molecular Neuroscience, Molecular Neuroscience Center, Hong Kong University of Science and Technology, Kowloon, Hong Kong, China
| | - Johanna Galvis
- Division of Life Science, Center for Stem Cell Research, HKUST-Nan Fung Life Sciences Joint Laboratory, State Key Laboratory of Molecular Neuroscience, Molecular Neuroscience Center, Hong Kong University of Science and Technology, Kowloon, Hong Kong, China
| | - Tom H Cheung
- Division of Life Science, Center for Stem Cell Research, HKUST-Nan Fung Life Sciences Joint Laboratory, State Key Laboratory of Molecular Neuroscience, Molecular Neuroscience Center, Hong Kong University of Science and Technology, Kowloon, Hong Kong, China.
| | - Fabien Le Grand
- Institut NeuroMyoGène, Université Claude Bernard Lyon 1, Lyon, France.
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7
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Haroon M, Boers HE, Bakker AD, Bloks NGC, Hoogaars WMH, Giordani L, Musters RJP, Deldicque L, Koppo K, Le Grand F, Klein-Nulend J, Jaspers RT. Reduced growth rate of aged muscle stem cells is associated with impaired mechanosensitivity. Aging (Albany NY) 2022; 14:28-53. [PMID: 35023852 PMCID: PMC8791224 DOI: 10.18632/aging.203830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 01/03/2022] [Indexed: 11/25/2022]
Abstract
Aging-associated muscle wasting and impaired regeneration are caused by deficiencies in muscle stem cell (MuSC) number and function. We postulated that aged MuSCs are intrinsically impaired in their responsiveness to omnipresent mechanical cues through alterations in MuSC morphology, mechanical properties, and number of integrins, culminating in impaired proliferative capacity. Here we show that aged MuSCs exhibited significantly lower growth rate and reduced integrin-α7 expression as well as lower number of phospho-paxillin clusters than young MuSCs. Moreover, aged MuSCs were less firmly attached to matrigel-coated glass substrates compared to young MuSCs, as 43% of the cells detached in response to pulsating fluid shear stress (1 Pa). YAP nuclear localization was 59% higher than in young MuSCs, yet YAP target genes Cyr61 and Ctgf were substantially downregulated. When subjected to pulsating fluid shear stress, aged MuSCs exhibited reduced upregulation of proliferation-related genes. Together these results indicate that aged MuSCs exhibit impaired mechanosensitivity and growth potential, accompanied by altered morphology and mechanical properties as well as reduced integrin-α7 expression. Aging-associated impaired muscle regenerative capacity and muscle wasting is likely due to aging-induced intrinsic MuSC alterations and dysfunctional mechanosensitivity.
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Affiliation(s)
- Mohammad Haroon
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam 1081 HZ, The Netherlands
| | - Heleen E Boers
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam 1081 HZ, The Netherlands
| | - Astrid D Bakker
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam 1081 LA, The Netherlands
| | - Niek G C Bloks
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam 1081 HZ, The Netherlands
| | - Willem M H Hoogaars
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam 1081 HZ, The Netherlands
| | - Lorenzo Giordani
- Sorbonne Université, INSERM UMRS974, Center for Research in Myology, Paris 75013, France
| | - René J P Musters
- Department of Physiology, Amsterdam University Medical Center VUmc, Amsterdam Cardiovascular Sciences, Amsterdam 1081 HZ, The Netherlands
| | - Louise Deldicque
- Institute of Neuroscience, Université Catholique de Louvain, Louvain-la-Neuve 1348, Belgium
| | - Katrien Koppo
- Exercise Physiology Research Group, Department of Movement Sciences, KU Leuven, Leuven 3001, Belgium
| | - Fabien Le Grand
- Faculty of Medicine and Pharmacy, NeuroMyoGène UCBL-CNRS UMR 5310, INSERM U1217, Lyon 69008, France
| | - Jenneke Klein-Nulend
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam 1081 LA, The Netherlands
| | - Richard T Jaspers
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam 1081 HZ, The Netherlands
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8
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Jacques E, Kuang Y, Kann AP, Le Grand F, Krauss RS, Gilbert PM. The mini-IDLE 3D biomimetic culture assay enables interrogation of mechanisms governing muscle stem cell quiescence and niche repopulation. eLife 2022; 11:81738. [PMID: 36537758 PMCID: PMC9904761 DOI: 10.7554/elife.81738] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Adult skeletal muscle harbours a population of muscle stem cells (MuSCs) that are required for repair after tissue injury. In youth, MuSCs return to a reversible state of cell-cycle arrest termed 'quiescence' after injury resolution. Conversely, some MuSCs in aged muscle remain semi-activated, causing a premature response to injuries that results in incomplete repair and eventual stem cell depletion. Regulating this balance between MuSC quiescence and activation may hold the key to restoring tissue homeostasis with age, but is incompletely understood. To fill this gap, we developed a simple and tractable in vitro method, to rapidly inactivate MuSCs freshly isolated from young murine skeletal muscle, and return them to a quiescent-like state for at least 1-week, which we name mini-IDLE (Inactivation and Dormancy LEveraged in vitro). This was achieved by introducing MuSCs into a 3D bioartificial niche comprised of a thin sheet of mouse myotubes, which we demonstrate provides the minimal cues necessary to induce quiescence. With different starting numbers of MuSCs, the assay revealed cellular heterogeneity and population-level adaptations that converged on a common niche repopulation density; behaviours previously observed only in vivo. Quiescence-associated hallmarks included a Pax7+CalcR+DDX6+MyoD-c-FOS- signature, quiescent-like morphologies, and polarized niche markers. Leveraging high-content bioimaging pipelines, we demonstrate a relationship between morphology and cell fate signatures for possible real-time morphology-based screening. When using MuSCs from aged muscle, they displayed aberrant proliferative activities and delayed inactivation kinetics, among other quiescence-associated defects that we show are partially rescued by wortmannin treatment. Thus, the assay offers an unprecedented opportunity to systematically investigate long-standing queries in areas such as regulation of pool size and functional heterogeneity within the MuSC population, and to uncover quiescence regulators in youth and age.
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Affiliation(s)
- Erik Jacques
- Institute of Biomedical Engineering, University of TorontoTorontoCanada,Donnelly Centre, University of TorontoTorontoCanada
| | - Yinni Kuang
- Donnelly Centre, University of TorontoTorontoCanada,Department of Cell and Systems Biology, University of TorontoTorontoCanada
| | - Allison P Kann
- Department of Cell, Developmental, and Regenerative Biology, Icahn School of Medicine at Mount SinaiNew YorkUnited States,Black Family Stem Cell Institute, Icahn School of Medicine at Mount SinaiNew YorkUnited States,Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount SinaiNew YorkUnited States
| | - Fabien Le Grand
- Université Claude Bernard Lyon 1, CNRS UMR 5261, INSERM U1315, Institut NeuroMyoGène - Pathophysiology and Genetics of Neuron and MuscleLyonFrance
| | - Robert S Krauss
- Department of Cell, Developmental, and Regenerative Biology, Icahn School of Medicine at Mount SinaiNew YorkUnited States,Black Family Stem Cell Institute, Icahn School of Medicine at Mount SinaiNew YorkUnited States,Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount SinaiNew YorkUnited States
| | - Penney M Gilbert
- Institute of Biomedical Engineering, University of TorontoTorontoCanada,Donnelly Centre, University of TorontoTorontoCanada,Department of Cell and Systems Biology, University of TorontoTorontoCanada
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9
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Li J, Knudsen JR, Henriquez-Olguin C, Li Z, Birk JB, Persson KW, Hellsten Y, Offergeld A, Jarassier W, Le Grand F, Schjerling P, Wojtaszewski JFP, Jensen TE. AXIN1 knockout does not alter AMPK/mTORC1 regulation and glucose metabolism in mouse skeletal muscle. J Physiol 2021; 599:3081-3100. [PMID: 33913171 DOI: 10.1113/jp281187] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 04/20/2021] [Indexed: 01/15/2023] Open
Abstract
KEY POINTS Tamoxifen-inducible skeletal muscle-specific AXIN1 knockout (AXIN1 imKO) in mouse does not affect whole-body energy substrate metabolism. AXIN1 imKO does not affect AICAR or insulin-stimulated glucose uptake in adult skeletal muscle. AXIN1 imKO does not affect adult skeletal muscle AMPK or mTORC1 signalling during AICAR/insulin/amino acid incubation, contraction and exercise. During exercise, α2/β2/γ3AMPK and AMP/ATP ratio show greater increases in AXIN1 imKO than wild-type in gastrocnemius muscle. ABSTRACT AXIN1 is a scaffold protein known to interact with >20 proteins in signal transduction pathways regulating cellular development and function. Recently, AXIN1 was proposed to assemble a protein complex essential to catabolic-anabolic transition by coordinating AMPK activation and inactivation of mTORC1 and to regulate glucose uptake-stimulation by both AMPK and insulin. To investigate whether AXIN1 is permissive for adult skeletal muscle function, a phenotypic in vivo and ex vivo characterization of tamoxifen-inducible skeletal muscle-specific AXIN1 knockout (AXIN1 imKO) mice was conducted. AXIN1 imKO did not influence AMPK/mTORC1 signalling or glucose uptake stimulation at rest or in response to different exercise/contraction protocols, pharmacological AMPK activation, insulin or amino acids stimulation. The only genotypic difference observed was in exercising gastrocnemius muscle, where AXIN1 imKO displayed elevated α2/β2/γ3 AMPK activity and AMP/ATP ratio compared to wild-type mice. Our work shows that AXIN1 imKO generally does not affect skeletal muscle AMPK/mTORC1 signalling and glucose metabolism, probably due to functional redundancy of its homologue AXIN2.
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Affiliation(s)
- Jingwen Li
- Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Jonas R Knudsen
- Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark.,Microsystems Laboratory 2, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Carlos Henriquez-Olguin
- Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Zhencheng Li
- Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Jesper B Birk
- Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Kaspar W Persson
- Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Ylva Hellsten
- Section for Integrative Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Anika Offergeld
- School of Bioscience, Cardiff University, Cardiff, CF10 3AX, UK
| | - William Jarassier
- Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR 5310, INSERM U1217, Lyon, 69008, France
| | - Fabien Le Grand
- Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR 5310, INSERM U1217, Lyon, 69008, France
| | - Peter Schjerling
- Institute of Sports Medicine Copenhagen, Department of Orthopedic Surgery M, Bispebjerg Hospital, Copenhagen, Denmark
| | - Jørgen F P Wojtaszewski
- Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Thomas E Jensen
- Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
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10
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Wurmser M, Chaverot N, Madani R, Sakai H, Negroni E, Demignon J, Saint-Pierre B, Mouly V, Amthor H, Tapscott S, Birchmeier C, Tajbakhsh S, Le Grand F, Sotiropoulos A, Maire P. SIX1 and SIX4 homeoproteins regulate PAX7+ progenitor cell properties during fetal epaxial myogenesis. Development 2020; 147:dev.185975. [PMID: 32591430 DOI: 10.1242/dev.185975] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 06/18/2020] [Indexed: 01/09/2023]
Abstract
Pax7 expression marks stem cells in developing skeletal muscles and adult satellite cells during homeostasis and muscle regeneration. The genetic determinants that control the entrance into the myogenic program and the appearance of PAX7+ cells during embryogenesis are poorly understood. SIX homeoproteins are encoded by the sine oculis-related homeobox Six1-Six6 genes in vertebrates. Six1, Six2, Six4 and Six5 are expressed in the muscle lineage. Here, we tested the hypothesis that Six1 and Six4 could participate in the genesis of myogenic stem cells. We show that fewer PAX7+ cells occupy a satellite cell position between the myofiber and its associated basal lamina in Six1 and Six4 knockout mice (s1s4KO) at E18. However, PAX7+ cells are detected in remaining muscle masses present in the epaxial region of the double mutant embryos and are able to divide and contribute to muscle growth. To further characterize the properties of s1s4KO PAX7+ cells, we analyzed their transcriptome and tested their properties after transplantation in adult regenerating tibialis anterior muscle. Mutant stem cells contribute to hypotrophic myofibers that are not innervated but retain the ability to self-renew.
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Affiliation(s)
- Maud Wurmser
- Université de Paris, Institut Cochin, INSERM, CNRS, 24 rue du Fg St Jacques, F-75014 Paris, France
| | - Nathalie Chaverot
- Université de Paris, Institut Cochin, INSERM, CNRS, 24 rue du Fg St Jacques, F-75014 Paris, France
| | - Rouba Madani
- Université de Paris, Institut Cochin, INSERM, CNRS, 24 rue du Fg St Jacques, F-75014 Paris, France
| | - Hiroshi Sakai
- Division of Integrative Pathophysiology, Proteo-Science Center, Ehime University, Toon, Ehime, 791-0295, Japan.,Stem Cells and Development, Department of Developmental and Stem Cell Biology, Institut Pasteur, 25 rue du Dr. Roux, 75015, Paris, France.,CNRS UMR 3738, Institut Pasteur, 75015 Paris, France
| | - Elisa Negroni
- Sorbonne Université, Institut de Myologie, INSERM, 75013 Paris, France
| | - Josiane Demignon
- Université de Paris, Institut Cochin, INSERM, CNRS, 24 rue du Fg St Jacques, F-75014 Paris, France
| | - Benjamin Saint-Pierre
- Université de Paris, Institut Cochin, INSERM, CNRS, 24 rue du Fg St Jacques, F-75014 Paris, France
| | - Vincent Mouly
- Sorbonne Université, Institut de Myologie, INSERM, 75013 Paris, France
| | - Helge Amthor
- INSERM U1179, LIA BAHN CSM, Université de Versailles Saint-Quentin-en-Yvelines, Montigny-le-Bretonneux, France
| | | | | | - Shahragim Tajbakhsh
- Stem Cells and Development, Department of Developmental and Stem Cell Biology, Institut Pasteur, 25 rue du Dr. Roux, 75015, Paris, France.,CNRS UMR 3738, Institut Pasteur, 75015 Paris, France
| | - Fabien Le Grand
- Université de Paris, Institut Cochin, INSERM, CNRS, 24 rue du Fg St Jacques, F-75014 Paris, France.,Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS, INSERM, 69008 Lyon, France
| | - Athanassia Sotiropoulos
- Université de Paris, Institut Cochin, INSERM, CNRS, 24 rue du Fg St Jacques, F-75014 Paris, France
| | - Pascal Maire
- Université de Paris, Institut Cochin, INSERM, CNRS, 24 rue du Fg St Jacques, F-75014 Paris, France
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11
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Abstract
During aging, skeletal muscle tissue progressively declines in mass, strength, and regenerative capacity. Decreased muscle stem cell (MuSC) number and impaired function might underlie the aging-related muscle wasting and impaired regenerative capacity. As yet, the search for factors that regulate MuSC fate and function has revealed several biochemical factors within the MuSC niche that may be responsible for the decline in MuSC regenerative capacity. This decline cannot be explained by environmental factors solely, as the MuSC potential to regenerate muscle tissue is not reversed by changing the biochemical MuSC niche composition. Here we discuss the likeliness that during physical exercise, MuSCs within their niche are subjected to mechanical loads, in particular pressure and shear stress, as well as associated deformations. We postulate that these physical cues are involved in the activation and differentiation of MuSCs as these cells contain several transmembrane sensor proteins that have been shown to be mechanosensitive in other cell types, that is, endothelial cells and osteoprogenitors. We will specifically address age-related changes in mechanosensing in MuSCs and their niche. Insight in the physical cues applied to the MuSCs in vivo, and how these cues affect MuSC fate and function, helps to develop new therapeutic interventions to counterbalance age-related muscle loss. This requires an approach combining two- and three-dimensional live cell imaging of MuSCs within contracting muscle tissue, mathematical finite element modeling, and cell biology. © 2017 The Authors. Journal of Orthopaedic Research® Published by Wiley Periodicals, Inc. on behalf of the Orthopaedic Research Society. J Orthop Res 36:632-641, 2018.
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Affiliation(s)
- Heleen E. Boers
- Laboratory for MyologyFaculty of Behavioural and Movement SciencesVrije Universiteit AmsterdamAmsterdam Movement SciencesDe Boelelaan 11081081 HZ AmsterdamThe Netherlands
| | - Mohammad Haroon
- Laboratory for MyologyFaculty of Behavioural and Movement SciencesVrije Universiteit AmsterdamAmsterdam Movement SciencesDe Boelelaan 11081081 HZ AmsterdamThe Netherlands
| | - Fabien Le Grand
- Sorbonne UniversitésUPMC Univ Paris 06INSERM UMRS974CNRS FRE3617Center for Research in Myology75013 ParisFrance
| | - Astrid D. Bakker
- Department of Oral Cell BiologyAcademic Centre for Dentistry AmsterdamUniversity of Amsterdam and Vrije Universiteit AmsterdamAmsterdam Movement SciencesAmsterdamThe Netherlands
| | - Jenneke Klein‐Nulend
- Department of Oral Cell BiologyAcademic Centre for Dentistry AmsterdamUniversity of Amsterdam and Vrije Universiteit AmsterdamAmsterdam Movement SciencesAmsterdamThe Netherlands
| | - Richard T. Jaspers
- Laboratory for MyologyFaculty of Behavioural and Movement SciencesVrije Universiteit AmsterdamAmsterdam Movement SciencesDe Boelelaan 11081081 HZ AmsterdamThe Netherlands
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12
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Girardi F, Le Grand F. Wnt Signaling in Skeletal Muscle Development and Regeneration. Progress in Molecular Biology and Translational Science 2018; 153:157-179. [DOI: 10.1016/bs.pmbts.2017.11.026] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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13
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Lacour F, Vezin E, Bentzinger CF, Sincennes MC, Giordani L, Ferry A, Mitchell R, Patel K, Rudnicki MA, Chaboissier MC, Chassot AA, Le Grand F. R-spondin1 Controls Muscle Cell Fusion through Dual Regulation of Antagonistic Wnt Signaling Pathways. Cell Rep 2017; 18:2320-2330. [PMID: 28273449 PMCID: PMC5357729 DOI: 10.1016/j.celrep.2017.02.036] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 12/15/2016] [Accepted: 02/10/2017] [Indexed: 12/21/2022] Open
Abstract
Wnt-mediated signals are involved in many important steps in mammalian regeneration. In multiple cell types, the R-spondin (Rspo) family of secreted proteins potently activates the canonical Wnt/β-catenin pathway. Here, we identify Rspo1 as a mediator of skeletal muscle tissue repair. First, we show that deletion of Rspo1 results in global alteration of muscle regeneration kinetics following acute injury. We find that muscle progenitor cells lacking Rspo1 show delayed differentiation due to reduced activation of Wnt/β-catenin target genes. Furthermore, muscle cells lacking Rspo1 have a fusion phenotype leading to larger myotubes containing supernumerary nuclei both in vitro and in vivo. The increase in muscle fusion was dependent on downregulation of Wnt/β-catenin and upregulation of non-canonical Wnt7a/Fzd7/Rac1 signaling. We conclude that reciprocal control of antagonistic Wnt signaling pathways by Rspo1 in muscle stem cell progeny is a key step ensuring normal tissue architecture restoration following acute damage.
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Affiliation(s)
- Floriane Lacour
- Sorbonne Universités, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Center for Research in Myology, 75013 Paris, France
| | - Elsa Vezin
- Sorbonne Universités, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Center for Research in Myology, 75013 Paris, France
| | - C Florian Bentzinger
- Département de pharmacologie et physiologie, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, J1H5N4 QC, Canada
| | - Marie-Claude Sincennes
- Sprott Center for Stem Cell Research, Ottawa Hospital Research Institute, Regenerative Medicine Program, Ottawa, K1H8L6 ON, Canada; Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, K1H 8M5 ON, Canada
| | - Lorenzo Giordani
- Sorbonne Universités, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Center for Research in Myology, 75013 Paris, France
| | - Arnaud Ferry
- Sorbonne Universités, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Center for Research in Myology, 75013 Paris, France
| | - Robert Mitchell
- School of Biological Sciences, University of Reading, RG6 6UB Reading, UK
| | - Ketan Patel
- School of Biological Sciences, University of Reading, RG6 6UB Reading, UK; Freiburg Institute for Advanced Studies, Albert-Ludwigs-Universität Freiburg, 79104 Freiburg im Breisgau, Germany
| | - Michael A Rudnicki
- Sprott Center for Stem Cell Research, Ottawa Hospital Research Institute, Regenerative Medicine Program, Ottawa, K1H8L6 ON, Canada; Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, K1H 8M5 ON, Canada
| | | | | | - Fabien Le Grand
- Sorbonne Universités, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Center for Research in Myology, 75013 Paris, France.
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14
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Stantzou A, Schirwis E, Swist S, Alonso-Martin S, Polydorou I, Zarrouki F, Mouisel E, Beley C, Julien A, Le Grand F, Garcia L, Colnot C, Birchmeier C, Braun T, Schuelke M, Relaix F, Amthor H. BMP signaling regulates satellite cell-dependent postnatal muscle growth. Development 2017; 144:2737-2747. [PMID: 28694257 DOI: 10.1242/dev.144089] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 06/21/2017] [Indexed: 02/03/2023]
Abstract
Postnatal growth of skeletal muscle largely depends on the expansion and differentiation of resident stem cells, the so-called satellite cells. Here, we demonstrate that postnatal satellite cells express components of the bone morphogenetic protein (BMP) signaling machinery. Overexpression of noggin in postnatal mice (to antagonize BMP ligands), satellite cell-specific knockout of Alk3 (the gene encoding the BMP transmembrane receptor) or overexpression of inhibitory SMAD6 decreased satellite cell proliferation and accretion during myofiber growth, and ultimately retarded muscle growth. Moreover, reduced BMP signaling diminished the adult satellite cell pool. Abrogation of BMP signaling in satellite cell-derived primary myoblasts strongly diminished cell proliferation and upregulated the expression of cell cycle inhibitors p21 and p57 In conclusion, these results show that BMP signaling defines postnatal muscle development by regulating satellite cell-dependent myofiber growth and the generation of the adult muscle stem cell pool.
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Affiliation(s)
- Amalia Stantzou
- Versailles Saint-Quentin-en-Yvelines University, INSERM U1179, LIA BAHN CSM, Montigny-le-Bretonneux 78180, France.,Department of Neuropediatrics and NeuroCure Clinical Research Center, Charité University-Medicine, Berlin 10117, Germany.,Pierre et Marie Curie University, Paris Sorbonne, INSERM, UMRS974, CNRS FRE3617, Center for Research in Myology, Paris 75013, France
| | - Elija Schirwis
- Versailles Saint-Quentin-en-Yvelines University, INSERM U1179, LIA BAHN CSM, Montigny-le-Bretonneux 78180, France.,Pierre et Marie Curie University, Paris Sorbonne, INSERM, UMRS974, CNRS FRE3617, Center for Research in Myology, Paris 75013, France.,Developmental Biology/Signal Transduction Group, Max Delbruck Center for Molecular Medicine, Berlin 13092, Germany
| | - Sandra Swist
- Department of Cardiac Development and Remodeling, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim 61231, Germany.,Department of Cardiovascular Physiology, Ruhr University Bochum, D-44780 Bochum, Germany
| | - Sonia Alonso-Martin
- Pierre et Marie Curie University, Paris Sorbonne, INSERM, UMRS974, CNRS FRE3617, Center for Research in Myology, Paris 75013, France.,INSERM, Paris Est University, IMRB U955-E10, Créteil 94010, France
| | - Ioanna Polydorou
- Versailles Saint-Quentin-en-Yvelines University, INSERM U1179, LIA BAHN CSM, Montigny-le-Bretonneux 78180, France.,Department of Neuropediatrics and NeuroCure Clinical Research Center, Charité University-Medicine, Berlin 10117, Germany
| | - Faouzi Zarrouki
- Versailles Saint-Quentin-en-Yvelines University, INSERM U1179, LIA BAHN CSM, Montigny-le-Bretonneux 78180, France
| | - Etienne Mouisel
- Pierre et Marie Curie University, Paris Sorbonne, INSERM, UMRS974, CNRS FRE3617, Center for Research in Myology, Paris 75013, France.,Paul Sabatier University, Inserm UMR 1048, Toulouse 31432, France
| | | | - Anaïs Julien
- Paris Descartes-Sorbonne Paris Cité University, Inserm UMR1163, Imagine Institute, Paris 75015, France
| | - Fabien Le Grand
- Pierre et Marie Curie University, Paris Sorbonne, INSERM, UMRS974, CNRS FRE3617, Center for Research in Myology, Paris 75013, France
| | - Luis Garcia
- Versailles Saint-Quentin-en-Yvelines University, INSERM U1179, LIA BAHN CSM, Montigny-le-Bretonneux 78180, France
| | - Céline Colnot
- Paris Descartes-Sorbonne Paris Cité University, Inserm UMR1163, Imagine Institute, Paris 75015, France
| | - Carmen Birchmeier
- Developmental Biology/Signal Transduction Group, Max Delbruck Center for Molecular Medicine, Berlin 13092, Germany
| | - Thomas Braun
- Department of Cardiac Development and Remodeling, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim 61231, Germany
| | - Markus Schuelke
- Department of Neuropediatrics and NeuroCure Clinical Research Center, Charité University-Medicine, Berlin 10117, Germany
| | - Frédéric Relaix
- Pierre et Marie Curie University, Paris Sorbonne, INSERM, UMRS974, CNRS FRE3617, Center for Research in Myology, Paris 75013, France.,INSERM, Paris Est University, IMRB U955-E10, Créteil 94010, France
| | - Helge Amthor
- Versailles Saint-Quentin-en-Yvelines University, INSERM U1179, LIA BAHN CSM, Montigny-le-Bretonneux 78180, France .,Pediatric Department, University Hospital Raymond Poincaré, Garches 92380, France
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15
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Beyer S, Pontis J, Schirwis E, Battisti V, Rudolf A, Le Grand F, Ait-Si-Ali S. Erratum: Canonical Wnt signalling regulates nuclear export of Setdb1 during skeletal muscle terminal differentiation. Cell Discov 2016; 2:16043. [PMID: 27867535 PMCID: PMC5110003 DOI: 10.1038/celldisc.2016.43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Sophie Beyer
- Centre National de la Recherche Scientifique CNRS-Université Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate UMR7216 , Paris, France
| | - Julien Pontis
- Centre National de la Recherche Scientifique CNRS-Université Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate UMR7216 , Paris, France
| | - Elija Schirwis
- Institut Cochin, Université Paris-Descartes, Centre National de la Recherche Scientifique (CNRS) UMR8104, Paris, France; Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, Paris, France
| | - Valentine Battisti
- Centre National de la Recherche Scientifique CNRS-Université Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate UMR7216 , Paris, France
| | - Anja Rudolf
- Institut Cochin, Université Paris-Descartes, Centre National de la Recherche Scientifique (CNRS) UMR8104, Paris, France; Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, Paris, France
| | - Fabien Le Grand
- Institut Cochin, Université Paris-Descartes, Centre National de la Recherche Scientifique (CNRS) UMR8104, Paris, France; Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, Paris, France
| | - Slimane Ait-Si-Ali
- Centre National de la Recherche Scientifique CNRS-Université Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate UMR7216 , Paris, France
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16
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Beyer S, Pontis J, Schirwis E, Battisti V, Rudolf A, Le Grand F, Ait-Si-Ali S. Canonical Wnt signalling regulates nuclear export of Setdb1 during skeletal muscle terminal differentiation. Cell Discov 2016; 2:16037. [PMID: 27790377 PMCID: PMC5067623 DOI: 10.1038/celldisc.2016.37] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 09/19/2016] [Indexed: 02/06/2023] Open
Abstract
The histone 3 lysine 9 methyltransferase Setdb1 is essential for both stem cell pluripotency and terminal differentiation of different cell types. To shed light on the roles of Setdb1 in these mutually exclusive processes, we used mouse skeletal myoblasts as a model of terminal differentiation. Ex vivo studies on isolated single myofibres showed that Setdb1 is required for adult muscle stem cells expansion following activation. In vitro studies in skeletal myoblasts confirmed that Setdb1 suppresses terminal differentiation. Genomic binding analyses showed a release of Setdb1 from selected target genes upon myoblast terminal differentiation, concomitant to a nuclear export of Setdb1 to the cytoplasm. Both genomic release and cytoplasmic Setdb1 relocalisation during differentiation were dependent on canonical Wnt signalling. Transcriptomic assays in myoblasts unravelled a significant overlap between Setdb1 and Wnt3a regulated genetic programmes. Together, our findings revealed Wnt-dependent subcellular relocalisation of Setdb1 as a novel mechanism regulating Setdb1 functions and myogenesis.
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Affiliation(s)
- Sophie Beyer
- Centre National de la Recherche Scientifique CNRS-Université Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate UMR7216 , Paris, France
| | - Julien Pontis
- Centre National de la Recherche Scientifique CNRS-Université Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate UMR7216 , Paris, France
| | - Elija Schirwis
- Institut Cochin, Université Paris-Descartes, Centre National de la Recherche Scientifique (CNRS) UMR8104, Paris, France; Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, Paris, France
| | - Valentine Battisti
- Centre National de la Recherche Scientifique CNRS-Université Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate UMR7216 , Paris, France
| | - Anja Rudolf
- Institut Cochin, Université Paris-Descartes, Centre National de la Recherche Scientifique (CNRS) UMR8104, Paris, France; Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, Paris, France
| | - Fabien Le Grand
- Institut Cochin, Université Paris-Descartes, Centre National de la Recherche Scientifique (CNRS) UMR8104, Paris, France; Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, Paris, France
| | - Slimane Ait-Si-Ali
- Centre National de la Recherche Scientifique CNRS-Université Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate UMR7216 , Paris, France
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17
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Vilmont V, Cadot B, Vezin E, Le Grand F, Gomes ER. Dynein disruption perturbs post-synaptic components and contributes to impaired MuSK clustering at the NMJ: implication in ALS. Sci Rep 2016; 6:27804. [PMID: 27283349 PMCID: PMC4901269 DOI: 10.1038/srep27804] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 05/20/2016] [Indexed: 12/13/2022] Open
Abstract
The neuromuscular junction (NMJ) allows the transformation of a neuronal message into a mechanical force by muscle contraction and is the target of several neuromuscular disorders. While the neuronal side is under extensive research, the muscle appeared recently to have a growing role in the formation and integrity of the neuromuscular junction. We used an in vitro model of mature myofibers to study the role of dynein on major postsynaptic proteins. We found that dynein affects the expression and the clustering of acetylcholine receptors (AChRs), muscle specific tyrosine kinase (MuSK) and Rapsyn. We also show that myofibers with dynein impairment or from an amyotrophic lateral sclerosis (ALS) model (SOD1G93A) show similar defects in myofiber formation and agrin-induced AChR clustering suggesting a role for dynein impairment in ALS progression. Finally, we found that dynein can affect MuSK traffic through the endosomal pathway. Collectively, our studies show that defects in dynein can lead to impairment of muscle NMJ components’ expression and clustering. We propose that NMJ defects could happen via defective MuSK traffic and that this could be one of the pathological features involved in neurodegeneration such as ALS.
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Affiliation(s)
- Valérie Vilmont
- Myology Research Center, UM76-INSERM U974-CNRS FRE 3617 Sorbonne Universités, UPMC Université Paris 06, Paris, France
| | - Bruno Cadot
- Myology Research Center, UM76-INSERM U974-CNRS FRE 3617 Sorbonne Universités, UPMC Université Paris 06, Paris, France
| | - Elsa Vezin
- Myology Research Center, UM76-INSERM U974-CNRS FRE 3617 Sorbonne Universités, UPMC Université Paris 06, Paris, France
| | - Fabien Le Grand
- Myology Research Center, UM76-INSERM U974-CNRS FRE 3617 Sorbonne Universités, UPMC Université Paris 06, Paris, France
| | - Edgar R Gomes
- Myology Research Center, UM76-INSERM U974-CNRS FRE 3617 Sorbonne Universités, UPMC Université Paris 06, Paris, France.,Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
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18
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Parisi A, Lacour F, Giordani L, Colnot S, Maire P, Le Grand F. APC is required for muscle stem cell proliferation and skeletal muscle tissue repair. J Cell Biol 2015; 210:717-26. [PMID: 26304725 PMCID: PMC4555822 DOI: 10.1083/jcb.201501053] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 07/15/2015] [Indexed: 11/22/2022] Open
Abstract
The tumor suppressor adenomatous polyposis coli (APC) is a crucial regulator of many stem cell types. In constantly cycling stem cells of fast turnover tissues, APC loss results in the constitutive activation of a Wnt target gene program that massively increases proliferation and leads to malignant transformation. However, APC function in skeletal muscle, a tissue with a low turnover rate, has never been investigated. Here we show that conditional genetic disruption of APC in adult muscle stem cells results in the abrogation of adult muscle regenerative potential. We demonstrate that APC removal in adult muscle stem cells abolishes cell cycle entry and leads to cell death. By using double knockout strategies, we further prove that this phenotype is attributable to overactivation of β-catenin signaling. Our results demonstrate that in muscle stem cells, APC dampens canonical Wnt signaling to allow cell cycle progression and radically diverge from previous observations concerning stem cells in actively self-renewing tissues.
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Affiliation(s)
- Alice Parisi
- Institut Cochin, Université Paris-Descartes, Centre National de la Recherche Scientifique (CNRS), UMR 8104, 75014 Paris, France Institut National de la Santé et de la Recherché Médicale (INSERM) U1016, 75014 Paris, France
| | - Floriane Lacour
- Institut Cochin, Université Paris-Descartes, Centre National de la Recherche Scientifique (CNRS), UMR 8104, 75014 Paris, France Institut National de la Santé et de la Recherché Médicale (INSERM) U1016, 75014 Paris, France
| | - Lorenzo Giordani
- Institut Cochin, Université Paris-Descartes, Centre National de la Recherche Scientifique (CNRS), UMR 8104, 75014 Paris, France Institut National de la Santé et de la Recherché Médicale (INSERM) U1016, 75014 Paris, France
| | - Sabine Colnot
- Institut Cochin, Université Paris-Descartes, Centre National de la Recherche Scientifique (CNRS), UMR 8104, 75014 Paris, France Institut National de la Santé et de la Recherché Médicale (INSERM) U1016, 75014 Paris, France
| | - Pascal Maire
- Institut Cochin, Université Paris-Descartes, Centre National de la Recherche Scientifique (CNRS), UMR 8104, 75014 Paris, France Institut National de la Santé et de la Recherché Médicale (INSERM) U1016, 75014 Paris, France
| | - Fabien Le Grand
- Institut Cochin, Université Paris-Descartes, Centre National de la Recherche Scientifique (CNRS), UMR 8104, 75014 Paris, France Institut National de la Santé et de la Recherché Médicale (INSERM) U1016, 75014 Paris, France
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Jones AE, Price FD, Le Grand F, Soleimani VD, Dick SA, Megeney LA, Rudnicki MA. Wnt/β-catenin controls follistatin signalling to regulate satellite cell myogenic potential. Skelet Muscle 2015; 5:14. [PMID: 25949788 PMCID: PMC4421991 DOI: 10.1186/s13395-015-0038-6] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 04/08/2015] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Adult skeletal muscle regeneration is a highly orchestrated process involving the activation and proliferation of satellite cells, an adult skeletal muscle stem cell. Activated satellite cells generate a transient amplifying progenitor pool of myoblasts that commit to differentiation and fuse into multinucleated myotubes. During regeneration, canonical Wnt signalling is activated and has been implicated in regulating myogenic lineage progression and terminal differentiation. METHODS Here, we have undertaken a gene expression analysis of committed satellite cell-derived myoblasts to examine their ability to respond to canonical Wnt/β-catenin signalling. RESULTS We found that activation of canonical Wnt signalling induces follistatin expression in myoblasts and promotes myoblast fusion in a follistatin-dependent manner. In growth conditions, canonical Wnt/β-catenin signalling prime myoblasts for myogenic differentiation by stimulating myogenin and follistatin expression. We further found that myogenin binds elements in the follistatin promoter and thus acts downstream of myogenin during differentiation. Finally, ectopic activation of canonical Wnt signalling in vivo promoted premature differentiation during muscle regeneration following acute injury. CONCLUSIONS Together, these data reveal a novel mechanism by which myogenin mediates the canonical Wnt/β-catenin-dependent activation of follistatin and induction of the myogenic differentiation process.
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Affiliation(s)
- Andrew E Jones
- Regenerative Medicine Program, Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa, ON K1H 8L6 Canada.,Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5 Canada
| | - Feodor D Price
- Regenerative Medicine Program, Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa, ON K1H 8L6 Canada.,Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5 Canada
| | - Fabien Le Grand
- Institut Cochin, Université Paris Descartes, CNRS (UMR 8104), 24 Rue du Fg St Jacques, Paris, France
| | - Vahab D Soleimani
- Regenerative Medicine Program, Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa, ON K1H 8L6 Canada
| | - Sarah A Dick
- Regenerative Medicine Program, Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa, ON K1H 8L6 Canada.,Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5 Canada
| | - Lynn A Megeney
- Regenerative Medicine Program, Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa, ON K1H 8L6 Canada.,Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5 Canada
| | - Michael A Rudnicki
- Regenerative Medicine Program, Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa, ON K1H 8L6 Canada.,Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5 Canada
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Le Grand F, Grifone R, Mourikis P, Houbron C, Gigaud C, Pujol J, Maillet M, Pagès G, Rudnicki M, Tajbakhsh S, Maire P. Six1 regulates stem cell repair potential and self-renewal during skeletal muscle regeneration. ACTA ACUST UNITED AC 2013; 198:815-32. [PMID: 22945933 PMCID: PMC3432771 DOI: 10.1083/jcb.201201050] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Six1 in satellite cells is important for muscle regeneration and homeostasis of the stem cell niche by regulating MyoD, Myogenin, and Dusp6-ERK signaling. Satellite cells (SCs) are stem cells that mediate skeletal muscle growth and regeneration. Here, we observe that adult quiescent SCs and their activated descendants expressed the homeodomain transcription factor Six1. Genetic disruption of Six1 specifically in adult SCs impaired myogenic cell differentiation, impaired myofiber repair during regeneration, and perturbed homeostasis of the stem cell niche, as indicated by an increase in SC self-renewal. Six1 regulated the expression of the myogenic regulatory factors MyoD and Myogenin, but not Myf5, which suggests that Six1 acts on divergent genetic networks in the embryo and in the adult. Moreover, we demonstrate that Six1 regulates the extracellular signal-regulated kinase 1/2 (ERK1/2) pathway during regeneration via direct control of Dusp6 transcription. Muscles lacking Dusp6 were able to regenerate properly but showed a marked increase in SC number after regeneration. We conclude that Six1 homeoproteins act as a rheostat system to ensure proper regeneration of the tissue and replenishment of the stem cell pool during the events that follow skeletal muscle trauma.
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Affiliation(s)
- Fabien Le Grand
- Institut National de la Santé et de la Recherche Médicale U1016, Institut Cochin, Paris 75014, France.
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Abstract
Study of stem cell phenotype and functions requires their proper isolation. Stem cells isolated from skeletal muscle are a useful tool to explore molecular pathways involved in the regulation of myogenesis. Among progenitor cells, a subset of cells, called reserve cells, has been identified, in vitro, in myogenic cell cultures. This subset of cells remains undifferentiated while the main population of progenitor cells commits to terminal myogenic differentiation. When replated, these reserve cells grow as new colonies of progenitors. At the time of differentiation, they reform both differentiated myotubes and undifferentiated reserve cells. Here, we present a protocol to obtain and further isolate reserve cells from both human and murine myogenic cell cultures, together with techniques to analyze their cell cycle status.
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Richard AF, Demignon J, Sakakibara I, Pujol J, Favier M, Strochlic L, Le Grand F, Sgarioto N, Guernec A, Schmitt A, Cagnard N, Huang R, Legay C, Guillet-Deniau I, Maire P. Genesis of muscle fiber-type diversity during mouse embryogenesis relies on Six1 and Six4 gene expression. Dev Biol 2011; 359:303-20. [DOI: 10.1016/j.ydbio.2011.08.010] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2011] [Revised: 07/22/2011] [Accepted: 08/15/2011] [Indexed: 01/28/2023]
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Castets P, Bertrand AT, Beuvin M, Ferry A, Le Grand F, Castets M, Chazot G, Rederstorff M, Krol A, Lescure A, Romero NB, Guicheney P, Allamand V. Satellite cell loss and impaired muscle regeneration in selenoprotein N deficiency. Hum Mol Genet 2010; 20:694-704. [PMID: 21131290 DOI: 10.1093/hmg/ddq515] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Selenoprotein N (SelN) deficiency causes a group of inherited neuromuscular disorders termed SEPN1-related myopathies (SEPN1-RM). Although the function of SelN remains unknown, recent data demonstrated that it is dispensable for mouse embryogenesis and suggested its involvement in the regulation of ryanodine receptors and/or cellular redox homeostasis. Here, we investigate the role of SelN in satellite cell (SC) function and muscle regeneration, using the Sepn1(-/-) mouse model. Following cardiotoxin-induced injury, SelN expression was strongly up-regulated in wild-type muscles and, for the first time, we detected its endogenous expression in a subset of mononucleated cells by immunohistochemistry. We show that SelN deficiency results in a reduced basal SC pool in adult skeletal muscles and in an imperfect muscle restoration following a single injury. A dramatic depletion of the SC pool was detected after the first round of degeneration and regeneration that totally prevented subsequent regeneration of Sepn1(-/-) muscles. We demonstrate that SelN deficiency affects SC dynamics on isolated single fibres and increases the proliferation of Sepn1(-/-) muscle precursors in vivo and in vitro. Most importantly, exhaustion of the SC population was specifically identified in muscle biopsies from patients with mutations in the SEPN1 gene. In conclusion, we describe for the first time a major physiological function of SelN in skeletal muscles, as a key regulator of SC function, which likely plays a central role in the pathophysiological mechanism leading to SEPN1-RM.
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Scimè A, Soleimani VD, Bentzinger CF, Gillespie MA, Le Grand F, Grenier G, Bevilacqua L, Harper ME, Rudnicki MA. Oxidative status of muscle is determined by p107 regulation of PGC-1a. J Gen Physiol 2010. [DOI: 10.1085/jgp1364oia3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Scimè A, Soleimani VD, Bentzinger CF, Gillespie MA, Le Grand F, Grenier G, Bevilacqua L, Harper ME, Rudnicki MA. Oxidative status of muscle is determined by p107 regulation of PGC-1alpha. ACTA ACUST UNITED AC 2010; 190:651-62. [PMID: 20713602 PMCID: PMC2928004 DOI: 10.1083/jcb.201005076] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
p107, a member of the retinoblastoma susceptibility protein family, influences lipid metabolism in muscle and other tissues by repressing the PPAR-γ co-factor PGC-1α. Mice lacking p107 exhibit a white adipose deficiency yet do not manifest the metabolic changes typical for lipodystrophy, and instead exhibit low levels of serum triglycerides and a normal liver phenotype. When fed a high fat diet, p107-null mice still did not accumulate fat in the liver, and display markedly elevated energy expenditures together with an increased energy preference for lipids. Skeletal muscle was therefore examined, as this is normally the major tissue involved in whole body lipid metabolism. Notably, p107-deficient muscle express increased levels of peroxisome proliferator–activated receptor gamma co-activator-1α (PGC-1α) and contained increased numbers of the pro-oxidative type I and type IIa myofibers. Chromatin immunoprecipitation revealed binding of p107 and E2F4 to the PGC-1α proximal promoter, and this binding repressed promoter activity in transient transcription assays. Ectopic expression of p107 in muscle tissue in vivo results in a pronounced 20% decrease in the numbers of oxidative type IIa myofibers. Lastly, isolated p107-deficient muscle tissue display a threefold increase in lipid metabolism. Therefore, p107 determines the oxidative state of multiple tissues involved in whole body fat metabolism, including skeletal muscle.
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Affiliation(s)
- Anthony Scimè
- Regenerative Medicine Program, Ottawa Health Research Institute, Ottawa, Ontario, Canada
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Wang H, Noulet F, Edom-Vovard F, Tozer S, Le Grand F, Duprez D. Bmp Signaling at the Tips of Skeletal Muscles Regulates the Number of Fetal Muscle Progenitors and Satellite Cells during Development. Dev Cell 2010. [DOI: 10.1016/j.devcel.2010.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Gillespie MA, Le Grand F, Scimè A, Kuang S, von Maltzahn J, Seale V, Cuenda A, Ranish JA, Rudnicki MA. p38-{gamma}-dependent gene silencing restricts entry into the myogenic differentiation program. ACTA ACUST UNITED AC 2009; 187:991-1005. [PMID: 20026657 PMCID: PMC2806273 DOI: 10.1083/jcb.200907037] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The regenerative capacity of muscle is regulated by p38-γ, which phosphorylates MyoD and leads to formation of a complex that represses myogenin transcription. The mitogen-activated protein kinase p38-γ is highly expressed in skeletal muscle and is associated with the dystrophin glycoprotein complex; however, its function remains unclear. After induced damage, muscle in mice lacking p38-γ generated significantly fewer myofibers than wild-type muscle. Notably, p38-γ-deficient muscle contained 50% fewer satellite cells that exhibited premature Myogenin expression and markedly reduced proliferation. We determined that p38-γ directly phosphorylated MyoD on Ser199 and Ser200, which results in enhanced occupancy of MyoD on the promoter of myogenin together with markedly decreased transcriptional activity. This repression is associated with extensive methylation of histone H3K9 together with recruitment of the KMT1A methyltransferase to the myogenin promoter. Notably, a MyoD S199A/S200A mutant exhibits markedly reduced binding to KMT1A. Therefore, p38-γ signaling directly induces the assembly of a repressive MyoD transcriptional complex. Together, these results establish a hitherto unappreciated and essential role for p38-γ signaling in positively regulating the expansion of transient amplifying myogenic precursor cells during muscle growth and regeneration.
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Affiliation(s)
- Mark A Gillespie
- The Sprott Centre for Stem Cell Research, Ottawa Health Research Institute, Ontario, Canada
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Abou-Khalil R, Le Grand F, Pallafacchina G, Valable S, Authier FJ, Rudnicki MA, Gherardi RK, Germain S, Chretien F, Sotiropoulos A, Lafuste P, Montarras D, Chazaud B. Autocrine and paracrine angiopoietin 1/Tie-2 signaling promotes muscle satellite cell self-renewal. Cell Stem Cell 2009; 5:298-309. [PMID: 19733541 DOI: 10.1016/j.stem.2009.06.001] [Citation(s) in RCA: 162] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2008] [Revised: 05/05/2009] [Accepted: 06/05/2009] [Indexed: 11/19/2022]
Abstract
Mechanisms governing muscle satellite cell withdrawal from cell cycle to enter into quiescence remain poorly understood. We studied the role of angiopoietin 1 (Ang1) and its receptor Tie-2 in the regulation of myogenic precursor cell (mpc) fate. In human and mouse, Tie-2 was preferentially expressed by quiescent satellite cells in vivo and reserve cells (RCs) in vitro. Ang1/Tie-2 signaling, through ERK1/2 pathway, decreased mpc proliferation and differentiation, increased the number of cells in G0, increased expression of RC-associated markers (p130, Pax7, Myf-5, M-cadherin), and downregulated expression of differentiation-associated markers. Silencing Tie-2 had opposite effects. Cells located in the satellite cell neighborhood (smooth muscle cells, fibroblasts) upregulated RC-associated markers by secreting Ang1 in vitro. In vivo, Tie-2 blockade and Ang1 overexpression increased the number of cycling and quiescent satellite cells, respectively. We propose that Ang1/Tie-2 signaling regulates mpc self-renewal by controlling the return to quiescence of a subset of satellite cells.
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Le Grand F, Jones AE, Seale V, Scimè A, Rudnicki MA. Wnt7a activates the planar cell polarity pathway to drive the symmetric expansion of satellite stem cells. Cell Stem Cell 2009; 4:535-47. [PMID: 19497282 DOI: 10.1016/j.stem.2009.03.013] [Citation(s) in RCA: 353] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2008] [Revised: 02/12/2009] [Accepted: 03/19/2009] [Indexed: 12/18/2022]
Abstract
Satellite cells in skeletal muscle are a heterogeneous population of stem cells and committed progenitors. We found that quiescent satellite stem cells expressed the Wnt receptor Fzd7 and that its candidate ligand Wnt7a was upregulated during regeneration. Wnt7a markedly stimulated the symmetric expansion of satellite stem cells but did not affect the growth or differentiation of myoblasts. Silencing of Fzd7 abrogated Wnt7a binding and stimulation of stem cell expansion. Wnt7a signaling induced the polarized distribution of the planar cell polarity effector Vangl2. Silencing of Vangl2 inhibited Wnt7a action on satellite stem cell expansion. Wnt7a overexpression enhanced muscle regeneration and increased both satellite cell numbers and the proportion of satellite stem cells. Muscle lacking Wnt7a exhibited a marked decrease in satellite cell number following regeneration. Therefore, Wnt7a signaling through the planar cell polarity pathway controls the homeostatic level of satellite stem cells and hence regulates the regenerative potential of muscle.
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Affiliation(s)
- Fabien Le Grand
- Sprott Center for Stem Cell Research, Ottawa Hospital Research Institute, Regenerative Medicine Program, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada
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Abstract
We identify here the multiple epidermal growth factor repeat transmembrane protein Megf10 as a quiescent satellite cell marker that is also expressed in skeletal myoblasts but not in differentiated myofibers. Retroviral expression of Megf10 in myoblasts results in enhanced proliferation and inhibited differentiation. Infected myoblasts that fail to differentiate undergo cell cycle arrest and can reenter the cell cycle upon serum restimulation. Moreover, experimental modulations of Megf10 alter the expression levels of Pax7 and the myogenic regulatory factors. In contrast, Megf10 silencing in activated satellite cells on individual fibers or in cultured myoblasts results in a dramatic reduction in the cell number, caused by myogenin activation and precocious differentiation as well as a depletion of the self-renewing Pax7+/MyoD− population. Additionally, Megf10 silencing in MyoD−/− myoblasts results in down-regulation of Notch signaling components. We conclude that Megf10 represents a novel transmembrane protein that impinges on Notch signaling to regulate the satellite cell population balance between proliferation and differentiation.
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Affiliation(s)
- Chet E Holterman
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Canada K1N 6N5
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Abstract
The FASEB summer research conference on Skeletal Muscle Satellite and Stem Cells, organized by Thomas Rando, Giulio Cossu and Jeffrey Chamberlain, was held in Indian Wells, California, in July. An international array of researchers gathered to share numerous new insights into the cellular and molecular regulation of stem cells and satellite cells in skeletal muscle biology. The conference is unique in that it brings together investigators from diverse backgrounds, who work on the growth and repair of skeletal muscle in humans and model systems, in health and disease.
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Affiliation(s)
- Fabien Le Grand
- Sprott Center for Stem Cell Research, Ottawa Health Research Institute,501 Smyth Road, Ottawa, ON K1H 8L6, Canada
| | - Michael Rudnicki
- Sprott Center for Stem Cell Research, Ottawa Health Research Institute,501 Smyth Road, Ottawa, ON K1H 8L6, Canada
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Abstract
Research focusing on the canonical adult myogenic progenitor, the skeletal muscle satellite cell, is still an ever-growing field 46 years from their initial description. Recent publications revealed numerous new aspects of satellite cell biology, starting from their developmental life to their role as the principal self-renewing myogenic stem cell in adult skeletal muscle and finally their loss during aging. The myogenic potential of satellite cells is under the molecular control of specific paired-box and bHLH transcription factors whose tightly orchestrated balance accounts for an effective skeletal muscle regeneration. New reports also demonstrate satellite cells relationships with blood vessels and the high myogenic potential of stem cell subsets related to both lineages.
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Affiliation(s)
- Fabien Le Grand
- Sprott Center for Stem Cell Research, Ottawa Health Research Institute, 501 Smyth Road, Ottawa, K1H 8L6 Ontario, Canada
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Grenier G, Scimè A, Le Grand F, Asakura A, Perez-Iratxeta C, Andrade-Navarro MA, Labosky PA, Rudnicki MA. Resident endothelial precursors in muscle, adipose, and dermis contribute to postnatal vasculogenesis. Stem Cells 2007; 25:3101-10. [PMID: 17823241 DOI: 10.1634/stemcells.2006-0795] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A novel population of tissue-resident endothelial precursors (TEPs) was isolated from small blood vessels in dermal, adipose, and skeletal muscle of mouse based on their ability to be grown as spheres. Cellular and molecular analyses of these cells revealed that they were highly related regardless of the tissue of origin and distinct from embryonic neural stem cells. Notably, TEPs did not express hematopoietic markers, but they expressed numerous characteristics of angiogenic precursors and their differentiated progeny, such as CD34, Flk-1, Tie-1, CD31, and vascular endothelial cadherin (VE-cadherin). TEPs readily differentiated into endothelial cells in newly formed vascular networks following transplantation into regenerating skeletal muscle. Taken together, these experiments suggest that TEPs represent a novel class of endothelial precursors that are closely associated with small blood vessels in muscle, adipose, and dermal tissue. This finding is of particular interest since it could bring new insight in cancer angiogenesis and collateral blood vessels developed following ischemia. Disclosure of potential conflicts of interest is found at the end of this article.
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Affiliation(s)
- Guillaume Grenier
- Sprott Centre for Stem Cell Research, Ottawa Health Research Institute, 501 Smyth Road, Ottawa, Ontario K1H 8L6, Canada
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Kuang S, Kuroda K, Le Grand F, Rudnicki MA. Asymmetric self-renewal and commitment of satellite stem cells in muscle. Cell 2007; 129:999-1010. [PMID: 17540178 PMCID: PMC2718740 DOI: 10.1016/j.cell.2007.03.044] [Citation(s) in RCA: 960] [Impact Index Per Article: 56.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2006] [Revised: 02/07/2007] [Accepted: 03/07/2007] [Indexed: 12/12/2022]
Abstract
Satellite cells play a central role in mediating the growth and regeneration of skeletal muscle. However, whether satellite cells are stem cells, committed progenitors, or dedifferentiated myoblasts has remained unclear. Using Myf5-Cre and ROSA26-YFP Cre-reporter alleles, we observed that in vivo 10% of sublaminar Pax7-expressing satellite cells have never expressed Myf5. Moreover, we found that Pax7(+)/Myf5(-) satellite cells gave rise to Pax7(+)/Myf5(+) satellite cells through apical-basal oriented divisions that asymmetrically generated a basal Pax7(+)/Myf5(-) and an apical Pax7(+)/Myf5(+) cells. Prospective isolation and transplantation into muscle revealed that whereas Pax7(+)/Myf5(+) cells exhibited precocious differentiation, Pax7(+)/Myf5(-) cells extensively contributed to the satellite cell reservoir throughout the injected muscle. Therefore, we conclude that satellite cells are a heterogeneous population composed of stem cells and committed progenitors. These results provide critical insights into satellite cell biology and open new avenues for therapeutic treatment of neuromuscular diseases.
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Affiliation(s)
- Shihuan Kuang
- The Sprott Center for Stem Cell Research, Ottawa Health Research Institute, Molecular Medicine Program, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada
| | - Kazuki Kuroda
- The Sprott Center for Stem Cell Research, Ottawa Health Research Institute, Molecular Medicine Program, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada
| | - Fabien Le Grand
- The Sprott Center for Stem Cell Research, Ottawa Health Research Institute, Molecular Medicine Program, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada
| | - Michael A. Rudnicki
- The Sprott Center for Stem Cell Research, Ottawa Health Research Institute, Molecular Medicine Program, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada
- University of Ottawa, Department of Medicine, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada
- Correspondence:
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Le Grand F, Auda-Boucher G, Levitsky D, Rouaud T, Fontaine-Pérus J, Gardahaut MF. Endothelial cells within embryonic skeletal muscles: a potential source of myogenic progenitors. Exp Cell Res 2005; 301:232-41. [PMID: 15530859 DOI: 10.1016/j.yexcr.2004.07.028] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2004] [Revised: 07/26/2004] [Indexed: 11/30/2022]
Abstract
We investigated whether the vessel-associated or endothelial cells within mouse embryo muscles can be a source of myogenic progenitors. Immunodetection of the stem cell surface markers, CD34 and Flk1, which are known to characterize the endothelial lineage, was done throughout the course of embryo muscle development. Both markers appeared to be restricted to the vessel-associated cells. On the basis of CD34 labeling, the reactive cells were purified by magnetic-bead selection from the limb muscles of 17-dpc desmin+/-LacZ mouse embryos and characterized by fluorescence-activated cell sorting. The cells in the selected CD34(+) population appeared to be approximately 95% positive for Flk1, but usually negative for CD45. We demonstrated that in vitro the CD34(+)/Flk1(+) population differentiated into endothelial cells and skeletal myofibers. When transplanted into mdx mouse muscle, this population displayed a high propensity to disperse within the recipient muscle, fuse with the host myofibers, and restore dystrophin expression. The marked ability of the embryonic muscle endothelial cells to activate myogenic program could be related to their somitic origin.
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Affiliation(s)
- Fabien Le Grand
- CNRS UMR 6204, Faculté des Sciences et des Techniques, 44322 Nantes Cedex 3, France
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Auda-Boucher G, Rouaud T, Fontaine-Pérus J, Le Grand F, Gardahaut MF. Developmental behavior of embryonic myogenic progenitors transplanted into adult muscle as revealed by desmin LacZ recombinant gene. J Histochem Cytochem 2003; 51:1255-67. [PMID: 14500693 DOI: 10.1177/002215540305101002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We studied the behavior of myogenic progenitors from donor desmin(+/-) LacZ embryos after implantation into tibialis anterior muscle of 2-month-old mouse hosts. Myogenic progenitors were collected from 10-day post-coital mouse embryo somite dermomyotomes (DMs), forelimb buds (LBs), and trunks. The replacement of desmin by the LacZ coding sequence allowed specific monitoring of beta-galactosidase expression in donor myogenic cells. Immunostaining for myosin heavy chain and laminin expression was performed together with acetylcholine receptor histochemistry on sections of implanted muscle. Myogenic progenitors generated from DM, LB, and trunk were able to proliferate and adopt a myogenic pathway after transplantation into adult mouse muscle. Although their development appeared to be limited for DM and LB cell transplantation, the differentiation of myogenic progenitors occurred readily with trunk cell injection, suggesting that cell types associated with DM cells were involved in long-term myofiber differentiation (21 day). When neural tube/notochord (NTN) or sclerotomal (S) cells were co-transplanted with DM cells, myogenic nuclei were produced, indicating that both NTN and S are required for the differentiation of DMs grafted into adult muscle. These data are consistent with the differentiation of neural tissues and bone from NTN and S, respectively, and with the development of anatomic relations among all in vivo-differentiated tissues. These results suggest that embryonic trunk cells can be used to repair different types of injured tissues (especially skeletal muscle) under appropriate environmental conditions.
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