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Vallecillo-García P, Kühnlein MN, Orgeur M, Hansmeier NR, Kotsaris G, Meisen ZG, Timmermann B, Giesecke-Thiel C, Hägerling R, Stricker S. Mesenchymal Osr1+ cells regulate embryonic lymphatic vessel formation. Development 2024; 151:dev202747. [PMID: 39221968 DOI: 10.1242/dev.202747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 07/17/2024] [Indexed: 09/04/2024]
Abstract
The lymphatic system is formed during embryonic development by the commitment of specialized lymphatic endothelial cells (LECs) and their subsequent assembly in primary lymphatic vessels. Although lymphatic cells are in continuous contact with mesenchymal cells during development and in adult tissues, the role of mesenchymal cells in lymphatic vasculature development remains poorly characterized. Here, we show that a subpopulation of mesenchymal cells expressing the transcription factor Osr1 are in close association with migrating LECs and established lymphatic vessels in mice. Lineage tracing experiments revealed that Osr1+ cells precede LEC arrival during lymphatic vasculature assembly in the back of the embryo. Using Osr1-deficient embryos and functional in vitro assays, we show that Osr1 acts in a non-cell-autonomous manner controlling proliferation and early migration of LECs to peripheral tissues. Thereby, mesenchymal Osr1+ cells control, in a bimodal manner, the production of extracellular matrix scaffold components and signal ligands crucial for lymphatic vessel formation.
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Affiliation(s)
- Pedro Vallecillo-García
- Institute for Chemistry and Biochemistry, Freie Universität Berlin,14195 Berlin, Germany
- Department of Hematology, Oncology and Tumorimmunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 13353Berlin, Germany
| | - Mira Nicola Kühnlein
- Institute for Chemistry and Biochemistry, Freie Universität Berlin,14195 Berlin, Germany
| | - Mickael Orgeur
- Unit for Integrated Mycobacterial Pathogenomics, Institut Pasteur, Université Paris Cité, CNRS UMR 6047, 75015 Paris, France
| | - Nils Rouven Hansmeier
- Research Group 'Lymphovascular Medicine and Translational 3D-Histopathology' , Institute of Medical and Human Genetics, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
- BIH Center for Regenerative Therapies, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
- Research Group 'Development and Disease', Max Planck Institute for Molecular Genetics, Ihnestraße 63-73, 14195 Berlin, Germany
| | - Georgios Kotsaris
- Institute for Chemistry and Biochemistry, Freie Universität Berlin,14195 Berlin, Germany
| | - Zarah Gertrud Meisen
- Institute for Chemistry and Biochemistry, Freie Universität Berlin,14195 Berlin, Germany
| | - Bernd Timmermann
- Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany
| | | | - René Hägerling
- Research Group 'Lymphovascular Medicine and Translational 3D-Histopathology' , Institute of Medical and Human Genetics, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
- BIH Center for Regenerative Therapies, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
- Research Group 'Development and Disease', Max Planck Institute for Molecular Genetics, Ihnestraße 63-73, 14195 Berlin, Germany
- BIH Academy, Clinician Scientist Program, Berlin Institute of Health at Charité-Universitätsmedizin Berlin,Charitéplatz 1, 10117 Berlin, Germany
| | - Sigmar Stricker
- Institute for Chemistry and Biochemistry, Freie Universität Berlin,14195 Berlin, Germany
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2
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Sun Y, Xu Z, You W, Zhou Y, Nong Q, Chen W, Shan T. Lipidomics and single-cell RNA sequencing reveal lipid and cell dynamics of porcine glycerol-injured skeletal muscle regeneration model. Life Sci 2024; 350:122742. [PMID: 38797365 DOI: 10.1016/j.lfs.2024.122742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 05/18/2024] [Accepted: 05/18/2024] [Indexed: 05/29/2024]
Abstract
AIMS Intramuscular fat (IMF) infiltration and extracellular matrix (ECM) deposition are characteristic features of muscle dysfunction, such as muscular dystrophy and severe muscle injuries. However, the underlying mechanisms of cellular origin, adipocyte formation and fibrosis in skeletal muscle are still unclear. MAIN METHODS Pigs were injected with 50 % glycerol (GLY) to induce skeletal muscle injury and regeneration. The acyl chain composition was analyzed by lipidomics, and the cell atlas and molecular signatures were revealed via single-cell RNA sequencing (scRNA-seq). Adipogenesis analysis was performed on fibroblast/fibro-adipogenic progenitors (FAPs) isolated from pigs. KEY FINDINGS The porcine GLY-injured skeletal muscle regeneration model was characterized by IMF infiltration and ECM deposition. Skeletal muscle stem cells (MuSCs) and FAP clusters were analyzed to explore the potential mechanisms of adipogenesis and fibrosis, and it was found that the TGF-β signaling pathway might be a key switch that regulates differentiation. Consistently, activation of the TGF-β signaling pathway increased SMAD2/3 phosphorylation and inhibited adipogenesis in FAPs, while inhibition of the TGF-β signaling pathway increased the expression of PPARγ and promoted adipogenesis. SIGNIFICANCE GLY-induced muscle injury and regeneration provides comprehensive insights for the development of therapies for human skeletal muscle dysfunction and fatty infiltration-related diseases in which the TGF-β/SMAD signaling pathway might play a primary regulatory role.
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Affiliation(s)
- Ye Sun
- College of Animal Sciences, Zhejiang University, Hangzhou, China; The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China; Zhejiang Provincial Laboratory of Feed and Animal Nutrition, Hangzhou, China
| | - Ziye Xu
- College of Animal Sciences, Zhejiang University, Hangzhou, China; The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China; Zhejiang Provincial Laboratory of Feed and Animal Nutrition, Hangzhou, China
| | - Wenjing You
- College of Animal Sciences, Zhejiang University, Hangzhou, China; The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China; Zhejiang Provincial Laboratory of Feed and Animal Nutrition, Hangzhou, China
| | - Yanbing Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou, China; The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China; Zhejiang Provincial Laboratory of Feed and Animal Nutrition, Hangzhou, China
| | - Qiuyun Nong
- College of Animal Sciences, Zhejiang University, Hangzhou, China; The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China; Zhejiang Provincial Laboratory of Feed and Animal Nutrition, Hangzhou, China
| | - Wentao Chen
- College of Animal Sciences, Zhejiang University, Hangzhou, China; The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China; Zhejiang Provincial Laboratory of Feed and Animal Nutrition, Hangzhou, China
| | - Tizhong Shan
- College of Animal Sciences, Zhejiang University, Hangzhou, China; The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China; Zhejiang Provincial Laboratory of Feed and Animal Nutrition, Hangzhou, China.
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3
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Hirsinger E, Blavet C, Bonnin MA, Bellenger L, Gharsalli T, Duprez D. Limb connective tissue is organized in a continuum of promiscuous fibroblast identities during development. iScience 2024; 27:110305. [PMID: 39050702 PMCID: PMC11267076 DOI: 10.1016/j.isci.2024.110305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/21/2024] [Accepted: 06/17/2024] [Indexed: 07/27/2024] Open
Abstract
Connective tissue (CT), which includes tendon and muscle CT, plays critical roles in development, in particular as positional cue provider. Nonetheless, our understanding of fibroblast developmental programs is hampered because fibroblasts are highly heterogeneous and poorly characterized. Combining single-cell RNA-sequencing-based strategies including trajectory inference and in situ hybridization analyses, we address the diversity of fibroblasts and their developmental trajectories during chicken limb fetal development. We show that fibroblasts switch from a positional information to a lineage diversification program at the fetal period onset. Muscle CT and tendon are composed of several fibroblast populations that emerge asynchronously. Once the final muscle pattern is set, transcriptionally close populations are found in neighboring locations in limbs, prefiguring the adult fibroblast layers. We propose that the limb CT is organized in a continuum of promiscuous fibroblast identities, allowing for the robust and efficient connection of muscle to bone and skin.
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Affiliation(s)
- Estelle Hirsinger
- Sorbonne Université, Institut Biologie Paris Seine, CNRS UMR7622, Developmental Biology Laboratory, Inserm U1156, 75005 Paris, France
| | - Cédrine Blavet
- Sorbonne Université, Institut Biologie Paris Seine, CNRS UMR7622, Developmental Biology Laboratory, Inserm U1156, 75005 Paris, France
| | - Marie-Ange Bonnin
- Sorbonne Université, Institut Biologie Paris Seine, CNRS UMR7622, Developmental Biology Laboratory, Inserm U1156, 75005 Paris, France
| | - Léa Bellenger
- Sorbonne Université, CNRS FR3631, Inserm U1156, Institut de Biologie Paris Seine (IBPS), ARTbio Bioinformatics Analysis Facility, Paris, Institut Français de Bioinformatique (IFB), 75005 Paris, France
| | - Tarek Gharsalli
- Sorbonne Université, Institut Biologie Paris Seine, CNRS UMR7622, Developmental Biology Laboratory, Inserm U1156, 75005 Paris, France
- Inovarion, 75005 Paris, France
| | - Delphine Duprez
- Sorbonne Université, Institut Biologie Paris Seine, CNRS UMR7622, Developmental Biology Laboratory, Inserm U1156, 75005 Paris, France
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4
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Flores-Opazo M, Kopinke D, Helmbacher F, Fernández-Verdejo R, Tuñón-Suárez M, Lynch GS, Contreras O. Fibro-adipogenic progenitors in physiological adipogenesis and intermuscular adipose tissue remodeling. Mol Aspects Med 2024; 97:101277. [PMID: 38788527 DOI: 10.1016/j.mam.2024.101277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/27/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024]
Abstract
Excessive accumulation of intermuscular adipose tissue (IMAT) is a common pathological feature in various metabolic and health conditions and can cause muscle atrophy, reduced function, inflammation, insulin resistance, cardiovascular issues, and unhealthy aging. Although IMAT results from fat accumulation in muscle, the mechanisms underlying its onset, development, cellular components, and functions remain unclear. IMAT levels are influenced by several factors, such as changes in the tissue environment, muscle type and origin, extent and duration of trauma, and persistent activation of fibro-adipogenic progenitors (FAPs). FAPs are a diverse and transcriptionally heterogeneous population of stromal cells essential for tissue maintenance, neuromuscular stability, and tissue regeneration. However, in cases of chronic inflammation and pathological conditions, FAPs expand and differentiate into adipocytes, resulting in the development of abnormal and ectopic IMAT. This review discusses the role of FAPs in adipogenesis and how they remodel IMAT. It highlights evidence supporting FAPs and FAP-derived adipocytes as constituents of IMAT, emphasizing their significance in adipose tissue maintenance and development, as well as their involvement in metabolic disorders, chronic pathologies and diseases. We also investigated the intricate molecular pathways and cell interactions governing FAP behavior, adipogenesis, and IMAT accumulation in chronic diseases and muscle deconditioning. Finally, we hypothesize that impaired cellular metabolic flexibility in dysfunctional muscles impacts FAPs, leading to IMAT. A deeper understanding of the biology of IMAT accumulation and the mechanisms regulating FAP behavior and fate are essential for the development of new therapeutic strategies for several debilitating conditions.
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Affiliation(s)
| | - Daniel Kopinke
- Department of Pharmacology and Therapeutics, University of Florida, Gainesville, 32610, FL, USA; Myology Institute, University of Florida College of Medicine, Gainesville, FL, USA.
| | | | - Rodrigo Fernández-Verdejo
- Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA, USA; Laboratorio de Fisiología Del Ejercicio y Metabolismo (LABFEM), Escuela de Kinesiología, Facultad de Medicina, Universidad Finis Terrae, Chile.
| | - Mauro Tuñón-Suárez
- Laboratorio de Fisiología Del Ejercicio y Metabolismo (LABFEM), Escuela de Kinesiología, Facultad de Medicina, Universidad Finis Terrae, Chile.
| | - Gordon S Lynch
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Melbourne, Victoria, Parkville 3010, Australia.
| | - Osvaldo Contreras
- Developmental and Regenerative Biology Division, Victor Chang Cardiac Research Institute, Darlinghurst, NSW, 2010, Australia; School of Clinical Medicine, UNSW Sydney, Kensington, NSW 2052, Australia.
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5
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Rodríguez C, Timóteo-Ferreira F, Minchiotti G, Brunelli S, Guardiola O. Cellular interactions and microenvironment dynamics in skeletal muscle regeneration and disease. Front Cell Dev Biol 2024; 12:1385399. [PMID: 38840849 PMCID: PMC11150574 DOI: 10.3389/fcell.2024.1385399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 04/30/2024] [Indexed: 06/07/2024] Open
Abstract
Skeletal muscle regeneration relies on the intricate interplay of various cell populations within the muscle niche-an environment crucial for regulating the behavior of muscle stem cells (MuSCs) and ensuring postnatal tissue maintenance and regeneration. This review delves into the dynamic interactions among key players of this process, including MuSCs, macrophages (MPs), fibro-adipogenic progenitors (FAPs), endothelial cells (ECs), and pericytes (PCs), each assuming pivotal roles in orchestrating homeostasis and regeneration. Dysfunctions in these interactions can lead not only to pathological conditions but also exacerbate muscular dystrophies. The exploration of cellular and molecular crosstalk among these populations in both physiological and dystrophic conditions provides insights into the multifaceted communication networks governing muscle regeneration. Furthermore, this review discusses emerging strategies to modulate the muscle-regenerating niche, presenting a comprehensive overview of current understanding and innovative approaches.
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Affiliation(s)
- Cristina Rodríguez
- Stem Cell Fate Laboratory, Institute of Genetics and Biophysics “A. Buzzati-Traverso”, CNR, Naples, Italy
| | | | - Gabriella Minchiotti
- Stem Cell Fate Laboratory, Institute of Genetics and Biophysics “A. Buzzati-Traverso”, CNR, Naples, Italy
| | - Silvia Brunelli
- School of Medicine and Surgery, University of Milano Bicocca, Milan, Italy
| | - Ombretta Guardiola
- Stem Cell Fate Laboratory, Institute of Genetics and Biophysics “A. Buzzati-Traverso”, CNR, Naples, Italy
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6
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Ren C, Wen Y, Zheng S, Zhao Z, Li EY, Zhao C, Liao M, Li L, Zhang X, Liu S, Yuan D, Luo K, Wang W, Fei J, Li S. Two transcriptional cascades orchestrate cockroach leg regeneration. Cell Rep 2024; 43:113889. [PMID: 38416646 DOI: 10.1016/j.celrep.2024.113889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 02/04/2024] [Accepted: 02/14/2024] [Indexed: 03/01/2024] Open
Abstract
The mystery of appendage regeneration has fascinated humans for centuries, while the underlying regulatory mechanisms remain unclear. In this study, we establish a transcriptional landscape of regenerating leg in the American cockroach, Periplaneta americana, an ideal model in appendage regeneration studies showing remarkable regeneration capacity. Through a large-scale in vivo screening, we identify multiple signaling pathways and transcription factors controlling leg regeneration. Specifically, zfh-2 and bowl contribute to blastema cell proliferation and morphogenesis in two transcriptional cascades: bone morphogenetic protein (BMP)/JAK-STAT-zfh-2-B-H2 and Notch-drm/bowl-bab1. Notably, we find zfh-2 is working as a direct target of BMP signaling to promote cell proliferation in the blastema. These mechanisms might be conserved in the appendage regeneration of vertebrates from an evolutionary perspective. Overall, our findings reveal that two crucial transcriptional cascades orchestrate distinct cockroach leg regeneration processes, significantly advancing the comprehension of molecular mechanism in appendage regeneration.
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Affiliation(s)
- Chonghua Ren
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou 510631, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510631, China; Guangmeiyuan R&D Center, Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, South China Normal University, Meizhou 514779, China.
| | - Yejie Wen
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Shaojuan Zheng
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Zheng Zhao
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Ethan Yihao Li
- International Department, the Affiliated High School of South China Normal University, Guangzhou 510631, China
| | - Chenjing Zhao
- Department of Biology, Taiyuan Normal University, Jinzhong 030619, China
| | - Mingtao Liao
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Liang Li
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Xiaoshuai Zhang
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Suning Liu
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Dongwei Yuan
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Kai Luo
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou 510631, China
| | - Wei Wang
- National Institute of Biological Sciences, Beijing 102206, China; Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing 102206, China
| | - Jifeng Fei
- Department of Pathology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Sheng Li
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou 510631, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510631, China; Guangmeiyuan R&D Center, Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, South China Normal University, Meizhou 514779, China.
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7
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Wang L, Valencak TG, Shan T. Fat infiltration in skeletal muscle: Influential triggers and regulatory mechanism. iScience 2024; 27:109221. [PMID: 38433917 PMCID: PMC10907799 DOI: 10.1016/j.isci.2024.109221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024] Open
Abstract
Fat infiltration in skeletal muscle (also known as myosteatosis) is now recognized as a distinct disease from sarcopenia and is directly related to declining muscle capacity. Hence, understanding the origins and regulatory mechanisms of fat infiltration is vital for maintaining skeletal muscle development and improving human health. In this article, we summarized the triggering factors such as aging, metabolic diseases and metabolic syndromes, nonmetabolic diseases, and muscle injury that all induce fat infiltration in skeletal muscle. We discussed recent advances on the cellular origins of fat infiltration and found several cell types including myogenic cells and non-myogenic cells that contribute to myosteatosis. Furthermore, we reviewed the molecular regulatory mechanism, detection methods, and intervention strategies of fat infiltration in skeletal muscle. Based on the current findings, our review will provide new insight into regulating function and lipid metabolism of skeletal muscle and treating muscle-related diseases.
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Affiliation(s)
- Liyi Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, China
- Key Laboratory of Molecular Animal Nutrition (Zhejiang University), Ministry of Education, Hangzhou, China
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China
| | | | - Tizhong Shan
- College of Animal Sciences, Zhejiang University, Hangzhou, China
- Key Laboratory of Molecular Animal Nutrition (Zhejiang University), Ministry of Education, Hangzhou, China
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China
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8
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Garcia SM, Lau J, Diaz A, Chi H, Lizarraga M, Wague A, Montenegro C, Davies MR, Liu X, Feeley BT. Distinct human stem cell subpopulations drive adipogenesis and fibrosis in musculoskeletal injury. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.07.28.551038. [PMID: 38260367 PMCID: PMC10802239 DOI: 10.1101/2023.07.28.551038] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Fibroadipogenic progenitors (FAPs) maintain healthy skeletal muscle in homeostasis but drive muscle degeneration in chronic injuries by promoting adipogenesis and fibrosis. To uncover how these stem cells switch from a pro-regenerative to pro-degenerative role we perform single-cell mRNA sequencing of human FAPs from healthy and injured human muscles across a spectrum of injury, focusing on rotator cuff tears. We identify multiple subpopulations with progenitor, adipogenic, or fibrogenic gene signatures. We utilize full spectrum flow cytometry to identify distinct FAP subpopulations based on highly multiplexed protein expression. Injury severity increases adipogenic commitment of FAP subpopulations and is driven by the downregulation of DLK1. Treatment of FAPs both in vitro and in vivo with DLK1 reduces adipogenesis and fatty infiltration, suggesting that during injury, reduced DLK1 within a subpopulation of FAPs may drive degeneration. This work highlights how stem cells perform varied functions depending on tissue context, by dynamically regulating subpopulation fate commitment, which can be targeted improve patient outcomes after injury.
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9
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Saito H, Suzuki N. Establishment of a novel experimental system using single cell-derived pleomorphic rhabdomyosarcoma cell lines expressing K-RasG12V and deficient in p53. Exp Anim 2023; 72:446-453. [PMID: 37081671 PMCID: PMC10658087 DOI: 10.1538/expanim.22-0177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 04/10/2023] [Indexed: 04/22/2023] Open
Abstract
Pleomorphic rhabdomyosarcoma (PRMS) predominantly arises in adult skeletal musculature and is usually associated with poor prognosis. Thus, effective treatments must be developed. PRMS is a rare tumor; therefore, it is critical to develop an experimental system to understand the cellular and molecular mechanisms of PRMS. We previously demonstrated that PRMS develops after p53 gene deletion and oncogenic K-Ras expression in the skeletal muscle tissue. In that study, oncogenic K-Ras-expressing cells were diverse and the period until disease onset was difficult to control. In this study, we developed an experimental system to address this problem. Single cell-derived murine cell lines, designated as RMS310 and RMSg2, were established by limiting the dilution of cells from a lung metastatic tumor colony that were positive for various cancer stem cells and activated skeletal muscle-resident stem/progenitor cell marker genes by RT-PCR. All cell lines stably recapitulated the histological characteristics of human PRMS as bizarre giant cells, desmin-positive cells, and lung metastases in C57BL/6 mice. All subclones of the RMSg2 cells by the limiting dilution in vitro could seed PRMS subcutaneously, and as few as 500 RMSg2 cells were sufficient to form tumors. These results suggest that the RMSg2 cells are multipotent cancer cells that partially combine the properties of skeletal muscle-resident stem/progenitor cells and high tumorigenicity. Thus, our model system's capacity to regenerate tumor tissue in vivo and maintain stable cells in vitro makes it useful for developing therapeutics to treat PRMS.
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Affiliation(s)
- Hiromitsu Saito
- Department of Animal Functional Genomics of Advanced Science Research Promotion Center, Organization for Research Initiative and Promotion at Mie University, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Noboru Suzuki
- Department of Animal Functional Genomics of Advanced Science Research Promotion Center, Organization for Research Initiative and Promotion at Mie University, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
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10
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Loomis T, Smith LR. Thrown for a loop: fibro-adipogenic progenitors in skeletal muscle fibrosis. Am J Physiol Cell Physiol 2023; 325:C895-C906. [PMID: 37602412 DOI: 10.1152/ajpcell.00245.2023] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/10/2023] [Accepted: 08/15/2023] [Indexed: 08/22/2023]
Abstract
Fibro-adipogenic progenitors (FAPs) are key regulators of skeletal muscle regeneration and homeostasis. However, dysregulation of these cells leads to fibro-fatty infiltration across various muscle diseases. FAPs are the key source of extracellular matrix (ECM) deposition in muscle, and disruption to this process leads to a pathological accumulation of ECM, known as fibrosis. The replacement of contractile tissue with fibrotic ECM functionally impairs the muscle and increases muscle stiffness. FAPs and fibrotic muscle form a progressively degenerative feedback loop where, as a muscle becomes fibrotic, it induces a fibrotic FAP phenotype leading to further development of fibrosis. In this review, we summarize FAPs' role in fibrosis in terms of their activation, heterogeneity, contributions to fibrotic degeneration, and role across musculoskeletal diseases. We also discuss current research on potential therapeutic avenues to attenuate fibrosis by targeting FAPs.
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Affiliation(s)
- Taryn Loomis
- Biomedical Engineering Graduate Group, University of California, Davis, California, United States
| | - Lucas R Smith
- Department of Neurobiology, Physiology, and Behavior, University of California, Davis, California, United States
- Department of Physical Medicine and Rehabilitation, University of California, Davis, California, United States
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11
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Norris AM, Appu AB, Johnson CD, Zhou LY, McKellar DW, Renault MA, Hammers D, Cosgrove BD, Kopinke D. Hedgehog signaling via its ligand DHH acts as cell fate determinant during skeletal muscle regeneration. Nat Commun 2023; 14:3766. [PMID: 37355632 PMCID: PMC10290686 DOI: 10.1038/s41467-023-39506-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 06/16/2023] [Indexed: 06/26/2023] Open
Abstract
Successful muscle regeneration relies on the interplay of multiple cell populations. However, the signals required for this coordinated intercellular crosstalk remain largely unknown. Here, we describe how the Hedgehog (Hh) signaling pathway controls the fate of fibro/adipogenic progenitors (FAPs), the cellular origin of intramuscular fat (IMAT) and fibrotic scar tissue. Using conditional mutagenesis and pharmacological Hh modulators in vivo and in vitro, we identify DHH as the key ligand that acts as a potent adipogenic brake by preventing the adipogenic differentiation of FAPs. Hh signaling also impacts muscle regeneration, albeit indirectly through induction of myogenic factors in FAPs. Our results also indicate that ectopic and sustained Hh activation forces FAPs to adopt a fibrogenic fate resulting in widespread fibrosis. In this work, we reveal crucial post-developmental functions of Hh signaling in balancing tissue regeneration and fatty fibrosis. Moreover, they provide the exciting possibility that mis-regulation of the Hh pathway with age and disease could be a major driver of pathological IMAT formation.
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Affiliation(s)
- Alessandra M Norris
- Department of Pharmacology and Therapeutics, Myology Institute, University of Florida, Gainesville, FL, USA
| | - Ambili Bai Appu
- Department of Pharmacology and Therapeutics, Myology Institute, University of Florida, Gainesville, FL, USA
| | - Connor D Johnson
- Department of Pharmacology and Therapeutics, Myology Institute, University of Florida, Gainesville, FL, USA
| | - Lylybell Y Zhou
- Department of Pharmacology and Therapeutics, Myology Institute, University of Florida, Gainesville, FL, USA
| | - David W McKellar
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Marie-Ange Renault
- Biology of Cardiovascular Diseases, INSERM, University of Bordeaux, Pessac, France
| | - David Hammers
- Department of Pharmacology and Therapeutics, Myology Institute, University of Florida, Gainesville, FL, USA
| | - Benjamin D Cosgrove
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Daniel Kopinke
- Department of Pharmacology and Therapeutics, Myology Institute, University of Florida, Gainesville, FL, USA.
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12
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Vallecillo-García P, Orgeur M, Comai G, Poehle-Kronawitter S, Fischer C, Gloger M, Dumas CE, Giesecke-Thiel C, Sauer S, Tajbakhsh S, Höpken UE, Stricker S. A local subset of mesenchymal cells expressing the transcription factor Osr1 orchestrates lymph node initiation. Immunity 2023; 56:1204-1219.e8. [PMID: 37160119 DOI: 10.1016/j.immuni.2023.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 12/05/2022] [Accepted: 04/13/2023] [Indexed: 05/11/2023]
Abstract
During development, lymph node (LN) initiation is coordinated by lymphoid tissue organizer (LTo) cells that attract lymphoid tissue inducer (LTi) cells at strategic positions within the embryo. The identity and function of LTo cells during the initial attraction of LTi cells remain poorly understood. Using lineage tracing, we demonstrated that a subset of Osr1-expressing cells was mesenchymal LTo progenitors. By investigating the heterogeneity of Osr1+ cells, we uncovered distinct mesenchymal LTo signatures at diverse anatomical locations, identifying a common progenitor of mesenchymal LTos and LN-associated adipose tissue. Osr1 was essential for LN initiation, driving the commitment of mesenchymal LTo cells independent of neural retinoic acid, and for LN-associated lymphatic vasculature assembly. The combined action of chemokines CXCL13 and CCL21 was required for LN initiation. Our results redefine the role and identity of mesenchymal organizer cells and unify current views by proposing a model of cooperative cell function in LN initiation.
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Affiliation(s)
| | - Mickael Orgeur
- Institut Pasteur, Université Paris Cité, CNRS UMR 6047, Unit for Integrated Mycobacterial Pathogenomics, 75015 Paris, France
| | - Glenda Comai
- Institut Pasteur, Stem Cells & Development Unit, CNRS UMR 3738, Paris, France
| | | | - Cornelius Fischer
- Core Facility Genomics, Berlin Institute of Health at Charité, 10178 Berlin, Germany; Max Delbrück Center for Molecular Medicine in the Helmholtz Association, 10115, Berlin, Germany
| | - Marleen Gloger
- Max Delbrück Center for Molecular Medicine, Department of Translational Tumor Immunology, 13125 Berlin, Germany; Uppsala University, Immunology Genetics and Pathology, 75237 Uppsala, Sweden
| | - Camille E Dumas
- Aix-Marseille Université, CNRS UMR 7288, IBDM, 13009 Marseille, France
| | | | - Sascha Sauer
- Core Facility Genomics, Berlin Institute of Health at Charité, 10178 Berlin, Germany; Max Delbrück Center for Molecular Medicine in the Helmholtz Association, 10115, Berlin, Germany
| | - Shahragim Tajbakhsh
- Institut Pasteur, Stem Cells & Development Unit, CNRS UMR 3738, Paris, France
| | - Uta E Höpken
- Max Delbrück Center for Molecular Medicine, Department of Microenvironmental Regulation in Autoimmunity and Cancer, 13125 Berlin, Germany
| | - Sigmar Stricker
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany.
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13
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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: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [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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14
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Sastourné-Arrey Q, Mathieu M, Contreras X, Monferran S, Bourlier V, Gil-Ortega M, Murphy E, Laurens C, Varin A, Guissard C, Barreau C, André M, Juin N, Marquès M, Chaput B, Moro C, O'Gorman D, Casteilla L, Girousse A, Sengenès C. Adipose tissue is a source of regenerative cells that augment the repair of skeletal muscle after injury. Nat Commun 2023; 14:80. [PMID: 36604419 PMCID: PMC9816314 DOI: 10.1038/s41467-022-35524-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 12/08/2022] [Indexed: 01/07/2023] Open
Abstract
Fibro-adipogenic progenitors (FAPs) play a crucial role in skeletal muscle regeneration, as they generate a favorable niche that allows satellite cells to perform efficient muscle regeneration. After muscle injury, FAP content increases rapidly within the injured muscle, the origin of which has been attributed to their proliferation within the muscle itself. However, recent single-cell RNAseq approaches have revealed phenotype and functional heterogeneity in FAPs, raising the question of how this differentiation of regenerative subtypes occurs. Here we report that FAP-like cells residing in subcutaneous adipose tissue (ScAT), the adipose stromal cells (ASCs), are rapidly released from ScAT in response to muscle injury. Additionally, we find that released ASCs infiltrate the damaged muscle, via a platelet-dependent mechanism and thus contribute to the FAP heterogeneity. Moreover, we show that either blocking ASCs infiltration or removing ASCs tissue source impair muscle regeneration. Collectively, our data reveal that ScAT is an unsuspected physiological reservoir of regenerative cells that support skeletal muscle regeneration, underlining a beneficial relationship between muscle and fat.
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Affiliation(s)
- Quentin Sastourné-Arrey
- RESTORE, Research Center, Team 1 STROMAGICS, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Maxime Mathieu
- RESTORE, Research Center, Team 1 STROMAGICS, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Xavier Contreras
- RESTORE, Research Center, Team 1 STROMAGICS, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Sylvie Monferran
- RESTORE, Research Center, Team 1 STROMAGICS, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Virginie Bourlier
- Institute of Metabolic and Cardiovascular Diseases, INSERM /Paul Sabatier University UMR 1297, Team MetaDiab, Toulouse, France
| | - Marta Gil-Ortega
- RESTORE, Research Center, Team 1 STROMAGICS, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Enda Murphy
- School of Health and Human Performance, Dublin City University, Dublin, Ireland
| | - Claire Laurens
- Institute of Metabolic and Cardiovascular Diseases, INSERM /Paul Sabatier University UMR 1297, Team MetaDiab, Toulouse, France
| | - Audrey Varin
- RESTORE, Research Center, Team 2 FLAMES, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Christophe Guissard
- RESTORE, Research Center, Team 4 GOT-IT, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Corinne Barreau
- RESTORE, Research Center, Team 1 STROMAGICS, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Mireille André
- RESTORE, Research Center, Team 1 STROMAGICS, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Noémie Juin
- RESTORE, Research Center, Team 1 STROMAGICS, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Marie Marquès
- Institute of Metabolic and Cardiovascular Diseases, INSERM /Paul Sabatier University UMR 1297, Team MetaDiab, Toulouse, France
| | - Benoit Chaput
- Department of Plastic and Reconstructive Surgery, Toulouse University Hospital, 31100, Toulouse, France
| | - Cédric Moro
- Institute of Metabolic and Cardiovascular Diseases, INSERM /Paul Sabatier University UMR 1297, Team MetaDiab, Toulouse, France
| | - Donal O'Gorman
- School of Health and Human Performance, Dublin City University, Dublin, Ireland
| | - Louis Casteilla
- RESTORE, Research Center, Team 4 GOT-IT, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Amandine Girousse
- RESTORE, Research Center, Team 1 STROMAGICS, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France
| | - Coralie Sengenès
- RESTORE, Research Center, Team 1 STROMAGICS, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, Toulouse, France.
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15
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Wang X, Chen J, Homma ST, Wang Y, Smith GR, Ruf-Zamojski F, Sealfon SC, Zhou L. Diverse effector and regulatory functions of fibro/adipogenic progenitors during skeletal muscle fibrosis in muscular dystrophy. iScience 2022; 26:105775. [PMID: 36594034 PMCID: PMC9804115 DOI: 10.1016/j.isci.2022.105775] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 09/08/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
Fibrosis is a prominent pathological feature of skeletal muscle in Duchenne muscular dystrophy (DMD). The commonly used disease mouse model, mdx 5cv , displays progressive fibrosis in the diaphragm but not limb muscles. We use single-cell RNA sequencing to determine the cellular expression of the genes involved in extracellular matrix (ECM) production and degradation in the mdx 5cv diaphragm and quadriceps. We find that fibro/adipogenic progenitors (FAPs) are not only the primary source of ECM but also the predominant cells that express important ECM regulatory genes, including Ccn2, Ltbp4, Mmp2, Mmp14, Timp1, Timp2, and Loxs. The effector and regulatory functions are exerted by diverse FAP clusters which are different between diaphragm and quadriceps, indicating their activation by different tissue microenvironments. FAPs are more abundant in diaphragm than in quadriceps. Our findings suggest that the development of anti-fibrotic therapy for DMD should target not only the ECM production but also the pro-fibrogenic regulatory functions of FAPs.
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Affiliation(s)
- Xingyu Wang
- Department of Neurology, Boston University School of Medicine, 72 East Concord Street, Boston, MA 02118, USA
| | - Jianming Chen
- Department of Neurology, Boston University School of Medicine, 72 East Concord Street, Boston, MA 02118, USA
| | - Sachiko T. Homma
- Department of Neurology, Boston University School of Medicine, 72 East Concord Street, Boston, MA 02118, USA
| | - Yinhang Wang
- Department of Neurology, Boston University School of Medicine, 72 East Concord Street, Boston, MA 02118, USA
| | - Gregory R. Smith
- Department of Neurology, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, New York, NY 10029, USA
| | - Frederique Ruf-Zamojski
- Department of Neurology, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, New York, NY 10029, USA
| | - Stuart C. Sealfon
- Department of Neurology, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, New York, NY 10029, USA
| | - Lan Zhou
- Department of Neurology, Boston University School of Medicine, 72 East Concord Street, Boston, MA 02118, USA,Corresponding author
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16
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Lu A, Tseng C, Guo P, Gao Z, Whitney KE, Kolonin MG, Huard J. The role of the aging microenvironment on the fate of PDGFRβ lineage cells in skeletal muscle repair. Stem Cell Res Ther 2022; 13:405. [PMID: 35932084 PMCID: PMC9356493 DOI: 10.1186/s13287-022-03072-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/20/2022] [Indexed: 11/20/2022] Open
Abstract
Background During aging, perturbation of muscle progenitor cell (MPC) constituents leads to progressive loss of muscle mass and accumulation of adipose and fibrotic tissue. Mesenchymal stem cells (MSCs) give rise to adipocytes and fibroblasts that accumulate in injured and pathological skeletal muscle through constitutive activation of platelet-derived growth factor receptors (PDGFRs). Although the role of the PDGFRα has been widely explored, there is a paucity of evidence demonstrating the role of PDGFRβ in aged skeletal muscle. Methods In this study, we investigated the role of PDGFRβ lineage cells in skeletal muscle during aging by using Cre/loxP lineage tracing technology. The PDGFR-Cre mice were crossed with global double-fluorescent Cre reporter mice (mTmG) that indelibly marks PDGFRβ lineage cells. Those cells were analyzed and compared at different ages in the skeletal muscle of the mice. Results Our results demonstrated that PDGFRβ lineage cells isolated from the muscles of young mice are MPC-like cells that exhibited satellite cell morphology, expressed Pax7, and undergo myogenic differentiation producing myosin heavy chain expressing myotubes. Conversely, the PDGFRβ lineage cells isolated from muscles of old mice displayed MSC morphology with a reduced myogenic differentiation potential while expressing adipogenic and fibrotic differentiation markers. PDGFRβ lineage cells also gave rise to newly regenerated muscle fibers in young mice after muscle injury, but their muscle regenerative process is reduced in old mice. Conclusions Our data suggest that PDGFRβ lineage cells function as MPCs in young mice, while the same PDGFRβ lineage cells from old mice undergo a fate switch participating in adipose and fibrotic tissue infiltration in aged muscle. The inhibition of fate-switching in PDGFRβ lineage cells may represent a potential approach to prevent fibrosis and fatty infiltration in skeletal muscle during the aging process.
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Affiliation(s)
- Aiping Lu
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, 181 West Meadow Drive, Suite 1000, Vail, CO, 81657, USA.
| | - Chieh Tseng
- M.D. Anderson Cancer Center, The University of Texas Health Science Center, Houston, TX, 77030, USA
| | - Ping Guo
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, 181 West Meadow Drive, Suite 1000, Vail, CO, 81657, USA
| | - Zhanguo Gao
- Institute of Molecular Medicine, The University of Texas Health Science Center, Houston, TX, 77030, USA
| | - Kaitlyn E Whitney
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, 181 West Meadow Drive, Suite 1000, Vail, CO, 81657, USA
| | - Mikhail G Kolonin
- Institute of Molecular Medicine, The University of Texas Health Science Center, Houston, TX, 77030, USA
| | - Johnny Huard
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, 181 West Meadow Drive, Suite 1000, Vail, CO, 81657, USA.
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17
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Beaudry KM, Binet ER, Collao N, De Lisio M. Nutritional Regulation of Muscle Stem Cells in Exercise and Disease: The Role of Protein and Amino Acid Dietary Supplementation. Front Physiol 2022; 13:915390. [PMID: 35874517 PMCID: PMC9301335 DOI: 10.3389/fphys.2022.915390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 05/30/2022] [Indexed: 11/13/2022] Open
Abstract
Human skeletal muscle is a remarkedly plastic tissue that has a high capacity to adapt in response to various stimuli. These adaptations are due in part to the function of muscle-resident stem/progenitor cells. Skeletal muscle regeneration and adaptation is facilitated by the activation and expansion of muscle stem cells (MuSCs). MuSC fate is regulated by signals released from cells in their niche, such as fibro-adipogenic progenitors (FAPs), as well as a variety of non-cellular niche components. Sufficient dietary protein consumption is critical for maximizing skeletal muscle adaptation to exercise and maintaining skeletal muscle in disease; however, the role of dietary protein in altering MuSC and FAP responses to exercise in healthy populations and skeletal muscle disease states requires more research. The present review provides an overview of this emerging field and suggestions for future directions. The current literature suggests that in response to resistance exercise, protein supplementation has been shown to increase MuSC content and the MuSC response to acute exercise. Similarly, protein supplementation augments the increase in MuSC content following resistance training. Endurance exercise, conversely, is an area of research that is sparse with respect to the interaction of protein supplementation and exercise on muscle stem/progenitor cell fate. Initial evidence suggests that protein supplementation augments the early myogenic response to acute endurance exercise but does not enhance the MuSC response to endurance training. Resistance training increases the number of proliferating FAPs with no additional effect of protein supplementation. Future research should continue to focus on the nutritional regulation of skeletal muscle stem/progenitor cell fate paired with studies examining the effects of exercise on a variety of human populations.
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Affiliation(s)
| | | | - Nicolás Collao
- School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada
| | - Michael De Lisio
- School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada
- Department of Cellular and Molecular Medicine, Centre for Neuromuscular Disease, University of Ottawa, Ottawa, ON, Canada
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18
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Bidirectional roles of skeletal muscle fibro-adipogenic progenitors in homeostasis and disease. Ageing Res Rev 2022; 80:101682. [PMID: 35809776 DOI: 10.1016/j.arr.2022.101682] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 06/09/2022] [Accepted: 07/04/2022] [Indexed: 02/07/2023]
Abstract
Sarcopenia and myopathies cause progressive muscle weakness and degeneration, which are closely associated with fat infiltration and fibrosis in muscle. Recently, experimental research has shed light on fibro-adipogenic progenitors (FAPs), also known as muscle-resident mesenchymal progenitors with multiple differentiation potential for adipogenesis, fibrosis, osteogenesis and chondrogenesis. They are considered key regulators of muscle homeostasis and integrity. They play supportive roles in muscle development and repair by orchestrating the regulatory interplay between muscle stem cells (MuSCs) and immune cells. Interestingly, FAPs also contribute to intramuscular fat infiltration, fibrosis and other pathologies when the functional integrity of the network is compromised. In this review, we summarize recent insights into the roles of FAPs in maintenance of skeletal muscle homeostasis, and discuss the underlying mechanisms regulating FAPs behavior and fate, highlighting their roles in participating in efficient muscle repair and fat infiltrated muscle degeneration as well as during muscle atrophy. We suggest that controlling and predicting FAPs differentiation may become a promising strategy to improve muscle function and prevent irreparable muscle damage.
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19
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Parker E, Mendhe B, Ruan L, Marshall B, Zhi W, Liu Y, Fulzele S, Tang Y, McGee-Lawrence M, Lee TJ, Sharma A, Johnson M, Chen J, Hamrick M. MicroRNA cargo of extracellular vesicles from skeletal muscle fibro-adipogenic progenitor cells is altered with disuse atrophy and IL-1β deficiency. Physiol Genomics 2022; 54:296-304. [PMID: 35759450 PMCID: PMC9342138 DOI: 10.1152/physiolgenomics.00177.2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Fibro-adipogenic progenitor cells (FAPs) are a population of stem cells in skeletal muscle that play multiple roles in muscle repair and regeneration through their complex secretome; however, it is not well understood how the FAP secretome is altered with muscle disuse atrophy. Previous work suggests that the inflammatory cytokine IL-1β is increased in FAPs with disuse and denervation. Inflammasome activation and IL-1β secretion are also known to stimulate the release of extracellular vesicles (EVs). Here we examined the microRNA (miRNA) cargo of FAP-derived, PDGFRα+ EVs from hindlimb muscles of wild-type and IL-1β KO mice after 14 days of single-hindlimb immobilization. Hindlimb muscles were isolated from mice following the immobilization period and PDGFRα+ extracellular vesicles isolated using size-exclusion chromatography and immunoprecipitation. Microarrays were performed to detect changes in miRNAs with unloading and IL-1β deficiency. Results indicate that the PDGFRα+, FAP-derived EVs show a significant increase in miRNAs such as miR-let-7c, -let-7b, miR-181a, and -124. These miRNAs have previously been demonstrated to play important roles in cellular senescence and muscle atrophy. Furthermore, expression of these same miRNAs was not significantly altered in FAP-derived EVs isolated from the immobilized IL-1β KO. These data suggest that disuse-related activation of IL-1β can mediate the miRNA cargo of FAP-derived EVs, contributing directly to the release of senescence- and atrophy-related miRNAs. Therapies targeting FAPs in settings associated with muscle disuse atrophy may therefore have potential to preserve muscle function and enhance muscle recovery.
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Affiliation(s)
- Emily Parker
- Department of Cellular Biology and Anatomy, Augusta University, Augusta, GA, United States
| | - Bharati Mendhe
- Department of Cellular Biology and Anatomy, Augusta University, Augusta, GA, United States
| | - Ling Ruan
- Department of Cellular Biology and Anatomy, Augusta University, Augusta, GA, United States
| | - Brendan Marshall
- EM/Histology Core Laboratory, Augusta University, Augusta, GA, United States
| | - Wenbo Zhi
- Center for Biotechnology and Genomic Medicine, Augusta University, Augusta, GA, United States
| | - Yutao Liu
- Department of Cellular Biology and Anatomy, Augusta University, Augusta, GA, United States
| | - Sadanand Fulzele
- Department of Cellular Biology and Anatomy, Augusta University, Augusta, GA, United States
| | - Yaoliang Tang
- Vascular Biology Center, Augusta University, Augusta, GA, United States
| | - Meghan McGee-Lawrence
- Department of Cellular Biology and Anatomy, Augusta University, Augusta, GA, United States
| | - Tae Jin Lee
- Center for Biotechnology and Genomic Medicine, Augusta University, Augusta, GA, United States
| | - Ashok Sharma
- Center for Biotechnology and Genomic Medicine, Augusta University, Augusta, GA, United States
| | - Maribeth Johnson
- Vascular Biology Center, Augusta University, Augusta, GA, United States
| | - Jie Chen
- Vascular Biology Center, Augusta University, Augusta, GA, United States
| | - Mark Hamrick
- Department of Cellular Biology and Anatomy, Augusta University, Augusta, GA, United States
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20
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Identification of distinct non-myogenic skeletal-muscle-resident mesenchymal cell populations. Cell Rep 2022; 39:110785. [PMID: 35545045 PMCID: PMC9535675 DOI: 10.1016/j.celrep.2022.110785] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 02/23/2022] [Accepted: 04/13/2022] [Indexed: 12/13/2022] Open
Abstract
Mesenchymal progenitors of the lateral plate mesoderm give rise to various cell fates within limbs, including a heterogeneous group of muscle-resident mesenchymal cells. Often described as fibro-adipogenic progenitors, these cells are key players in muscle development, disease, and regeneration. To further define this cell population(s), we perform lineage/reporter analysis, flow cytometry, single-cell RNA sequencing, immunofluorescent staining, and differentiation assays on normal and injured murine muscles. Here we identify six distinct Pdgfra+ non-myogenic muscle-resident mesenchymal cell populations that fit within a bipartite differentiation trajectory from a common progenitor. One branch of the trajectory gives rise to two populations of immune-responsive mesenchymal cells with strong adipogenic potential and the capability to respond to acute and chronic muscle injury, whereas the alternative branch contains two cell populations with limited adipogenic capacity and inherent mineralizing capabilities; one of the populations displays a unique neuromuscular junction association and an ability to respond to nerve injury. Leinroth et al. explore the heterogeneity of Pdgfra+ muscle-resident mesenchymal cells, demonstrating that Pdgfra+ subpopulations have unique gene expression profiles, exhibit two distinct cell trajectories from a common progenitor, differ in their abilities to respond to muscle injuries, and show variable adipogenic and mineralizing capacities.
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21
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Dohmen RGJ, Hubalek S, Melke J, Messmer T, Cantoni F, Mei A, Hueber R, Mitic R, Remmers D, Moutsatsou P, Post MJ, Jackisch L, Flack JE. Muscle-derived fibro-adipogenic progenitor cells for production of cultured bovine adipose tissue. NPJ Sci Food 2022; 6:6. [PMID: 35075125 PMCID: PMC8786866 DOI: 10.1038/s41538-021-00122-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 12/20/2021] [Indexed: 12/30/2022] Open
Abstract
Cultured meat is an emergent technology with the potential for significant environmental and animal welfare benefits. Accurate mimicry of traditional meat requires fat tissue; a key contributor to both the flavour and texture of meat. Here, we show that fibro-adipogenic progenitor cells (FAPs) are present in bovine muscle, and are transcriptionally and immunophenotypically distinct from satellite cells. These two cell types can be purified from a single muscle sample using a simple fluorescence-activated cell sorting (FACS) strategy. FAPs demonstrate high levels of adipogenic potential, as measured by gene expression changes and lipid accumulation, and can be proliferated for a large number of population doublings, demonstrating their suitability for a scalable cultured meat production process. Crucially, FAPs reach a mature level of adipogenic differentiation in three-dimensional, edible hydrogels. The resultant tissue accurately mimics traditional beef fat in terms of lipid profile and taste, and FAPs thus represent a promising candidate cell type for the production of cultured fat.
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Affiliation(s)
- Richard G J Dohmen
- Mosa Meat B.V., Maastricht, The Netherlands
- Department of Physiology, Maastricht University, Maastricht, The Netherlands
| | - Sophie Hubalek
- Mosa Meat B.V., Maastricht, The Netherlands
- Department of Physiology, Maastricht University, Maastricht, The Netherlands
| | | | - Tobias Messmer
- Mosa Meat B.V., Maastricht, The Netherlands
- Department of Physiology, Maastricht University, Maastricht, The Netherlands
| | | | | | - Rui Hueber
- Mosa Meat B.V., Maastricht, The Netherlands
| | - Rada Mitic
- Mosa Meat B.V., Maastricht, The Netherlands
- Department of Physiology, Maastricht University, Maastricht, The Netherlands
| | | | | | - Mark J Post
- Mosa Meat B.V., Maastricht, The Netherlands
- Department of Physiology, Maastricht University, Maastricht, The Netherlands
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22
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Parker E, Khayrullin A, Kent A, Mendhe B, Youssef El Baradie KB, Yu K, Pihkala J, Liu Y, McGee-Lawrence M, Johnson M, Chen J, Hamrick M. Hindlimb Immobilization Increases IL-1β and Cdkn2a Expression in Skeletal Muscle Fibro-Adipogenic Progenitor Cells: A Link Between Senescence and Muscle Disuse Atrophy. Front Cell Dev Biol 2022; 9:790437. [PMID: 35047502 PMCID: PMC8762295 DOI: 10.3389/fcell.2021.790437] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/13/2021] [Indexed: 11/26/2022] Open
Abstract
Loss of muscle mass and strength contributes to decreased independence and an increased risk for morbidity and mortality. A better understanding of the cellular and molecular mechanisms underlying muscle atrophy therefore has significant clinical and therapeutic implications. Fibro-adipogenic progenitors (FAPs) are a skeletal muscle resident stem cell population that have recently been shown to play vital roles in muscle regeneration and muscle hypertrophy; however, the role that these cells play in muscle disuse atrophy is not well understood. We investigated the role of FAPs in disuse atrophy in vivo utilizing a 2-week single hindlimb immobilization model. RNA-seq was performed on FAPs isolated from the immobilized and non-immobilized limb. The RNAseq data show that IL-1β is significantly upregulated in FAPs following 2 weeks of immobilization, which we confirmed using droplet-digital PCR (ddPCR). We further validated the RNA-seq and ddPCR data from muscle in situ using RNAscope technology. IL-1β is recognized as a key component of the senescence-associated secretory phenotype, or SASP. We then tested the hypothesis that FAPs from the immobilized limb would show elevated senescence measured by cyclin-dependent kinase inhibitor 2A (Cdkn2a) expression as a senescence marker. The ddPCR and RNAscope data both revealed increased Cdkn2a expression in FAPs with immobilization. These data suggest that the gene expression profile of FAPs is significantly altered with disuse, and that disuse itself may drive senescence in FAPs further contributing to muscle atrophy.
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Affiliation(s)
- Emily Parker
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Andrew Khayrullin
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Andrew Kent
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Bharati Mendhe
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Khairat Bahgat Youssef El Baradie
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States.,Faculty of Science, Tanta University, Tanta, Egypt
| | - Kanglun Yu
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Jeanene Pihkala
- Flow Cytometry Core Facility Research Laboratory Director, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Yutao Liu
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Meghan McGee-Lawrence
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Maribeth Johnson
- Division of Biostatistics and Data Science, DPHS, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Jie Chen
- Division of Biostatistics and Data Science, DPHS, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Mark Hamrick
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States
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23
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Molina T, Fabre P, Dumont NA. Fibro-adipogenic progenitors in skeletal muscle homeostasis, regeneration and diseases. Open Biol 2021; 11:210110. [PMID: 34875199 PMCID: PMC8651418 DOI: 10.1098/rsob.210110] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Skeletal muscle possesses a remarkable regenerative capacity that relies on the activity of muscle stem cells, also known as satellite cells. The presence of non-myogenic cells also plays a key role in the coordination of skeletal muscle regeneration. Particularly, fibro-adipogenic progenitors (FAPs) emerged as master regulators of muscle stem cell function and skeletal muscle regeneration. This population of muscle resident mesenchymal stromal cells has been initially characterized based on its bi-potent ability to differentiate into fibroblasts or adipocytes. New technologies such as single-cell RNAseq revealed the cellular heterogeneity of FAPs and their complex regulatory network during muscle regeneration. In acute injury, FAPs rapidly enter the cell cycle and secrete trophic factors that support the myogenic activity of muscle stem cells. Conversely, deregulation of FAP cell activity is associated with the accumulation of fibrofatty tissue in pathological conditions such as muscular dystrophies and ageing. Considering their central role in skeletal muscle pathophysiology, the regulatory mechanisms of FAPs and their cellular and molecular crosstalk with muscle stem cells are highly investigated in the field. In this review, we summarize the current knowledge on FAP cell characteristics, heterogeneity and the cellular crosstalk during skeletal muscle homeostasis and regeneration. We further describe their role in muscular disorders, as well as different therapeutic strategies targeting these cells to restore muscle regeneration.
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Affiliation(s)
- Thomas Molina
- CHU Sainte-Justine Research Center, Montreal, Quebec, Canada,Department of Pharmacology and Physiology, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Paul Fabre
- CHU Sainte-Justine Research Center, Montreal, Quebec, Canada,Department of Pharmacology and Physiology, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Nicolas A. Dumont
- CHU Sainte-Justine Research Center, Montreal, Quebec, Canada,School of Rehabilitation, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
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24
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Shang G, Han L, Wang Z, Song M, Wang D, Tan Y, Li Y, Li Y, Zhang W, Zhong M. Pim1 knockout alleviates sarcopenia in aging mice via reducing adipogenic differentiation of PDGFRα + mesenchymal progenitors. J Cachexia Sarcopenia Muscle 2021; 12:1741-1756. [PMID: 34435457 PMCID: PMC8718082 DOI: 10.1002/jcsm.12770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 07/01/2021] [Accepted: 07/10/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Sarcopenia widely exists in elderly people and triggers numerous age-related events. The essential pathologic change lies in the increased intramuscular adipose tissue after aging with no exception to non-obese objects. Pim1 appears to be associated with adipogenic differentiation in recent studies, inspiring us to explore whether it regulates adipogenesis in aging muscles and affects sarcopenia. METHODS Wild-type and Pim1 knockout C57/BL6J mice were randomized into young and old groups. Histo-pathological and molecular biological methods were applied to assess the intramuscular adipose tissue content, the atrophy and regeneration, and the expressions of Pim1 and adipogenic transcription factors. PDGFRα+ mesenchymal progenitors were separated and their replicative aging model were established. Different time of adipogenic induction and different amounts of Pim1 inhibitor were applied, after which the adipogenic potency were evaluated. The expressions of Pim1 and adipogenic transcription factors were measured through western blotting. RESULTS The aging mice demonstrated decreased forelimb grip strength (P = 0.0003), hanging impulse (P < 0.0001), exhaustive running time (P < 0.0001), tetanic force (P = 0.0298), lean mass (P = 0.0008), and percentage of gastrocnemius weight in body weight (P < 0.0001), which were improved by Pim1 knockout (P = 0.0015, P = 0.0222, P < 0.0001, P = 0.0444, P = 0.0004, and P = 0.0003, respectively). To elucidate the mechanisms, analyses showed that Pim1 knockout decreased the fat mass (P = 0.0005) and reduced the intramuscular adipose tissue content (P = 0.0008) by inhibiting the C/EBPδ pathway (P = 0.0067) in aging mice, resulting in increased cross-sectional area of all and fast muscle fibres (P = 0.0017 and 0.0024 respectively), decreased levels of MuRF 1 and atrogin 1 (P = 0.0001 and 0.0329 respectively), and decreased content of Pax7 at the basal state (P = 0.0055). In vitro, senescent PDGFRα+ mesenchymal progenitors showed significantly increased the intracellular adipose tissue content (OD510) compared with young cells after 6 days of adipogenic induction (P < 0.0001). The Pim1 expression was elevated during adipogenic differentiation, and Pim1 inhibition significantly reduced the OD510 in senescent cells (P = 0.0040) by inhibiting the C/EBPδ pathway (P = 0.0047). CONCLUSIONS Pim1 knockout exerted protective effects in sarcopenia by inhibiting the adipogenic differentiation of PDGFRα+ mesenchymal progenitors induced by C/EBPδ activation and thus reducing the intramuscular adipose tissue content in aging mice. These results provide a potential target for the treatment of sarcopenia.
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Affiliation(s)
- Guo‐kai Shang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Lu Han
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of MedicineShandong UniversityJinanShandongChina
- Department of General Practice, Qilu Hospital, Cheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Zhi‐hao Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of MedicineShandong UniversityJinanShandongChina
- Department of Geriatric Medicine, Qilu Hospital, Cheeloo College of MedicineShandong University; Shandong key Laboratory of Cardiovascular ProteomicsJinanShandongChina
| | - Ming Song
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Di Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Yan‐min Tan
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Yi‐hui Li
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of MedicineShandong UniversityJinanShandongChina
- Department of Critical Care Medicine, Qilu Hospital, Cheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Yu‐lin Li
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Wei Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Ming Zhong
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of MedicineShandong UniversityJinanShandongChina
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25
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Murugapoopathy V, Cammisotto PG, Mossa AH, Campeau L, Gupta IR. Osr1 Is Required for Mesenchymal Derivatives That Produce Collagen in the Bladder. Int J Mol Sci 2021; 22:ijms222212387. [PMID: 34830270 PMCID: PMC8619163 DOI: 10.3390/ijms222212387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 11/09/2021] [Accepted: 11/12/2021] [Indexed: 11/24/2022] Open
Abstract
The extracellular matrix of the bladder consists mostly of type I and III collagen, which are required during loading. During bladder injury, there is an accumulation of collagen that impairs bladder function. Little is known about the genes that regulate production of collagens in the bladder. We demonstrate that the transcription factor Odd-skipped related 1 (Osr1) is expressed in the bladder mesenchyme and epithelium at the onset of development. As development proceeds, Osr1 is mainly expressed in mesenchymal progenitors and their derivatives. We hypothesized that Osr1 regulates mesenchymal cell differentiation and production of collagens in the bladder. To test this hypothesis, we examined newborn and adult mice heterozygous for Osr1, Osr1+/−. The bladders of newborn Osr1+/− mice had a decrease in collagen I by western blot analysis and a global decrease in collagens using Sirius red staining. There was also a decrease in the cellularity of the lamina propria, where most collagen is synthesized. This was not due to decreased proliferation or increased apoptosis in this cell population. Surprisingly, the bladders of adult Osr1+/− mice had an increase in collagen that was associated with abnormal bladder function; they also had a decrease in bladder capacity and voided more frequently. The results suggest that Osr1 is important for the differentiation of mesenchymal cells that give rise to collagen-producing cells.
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Affiliation(s)
| | - Philippe G. Cammisotto
- Lady Davis Research Institute for Medical Research, Jewish General Hospital, Montreal, QC H3T 1E2, Canada; (P.G.C.); (A.H.M.); (L.C.)
| | - Abubakr H. Mossa
- Lady Davis Research Institute for Medical Research, Jewish General Hospital, Montreal, QC H3T 1E2, Canada; (P.G.C.); (A.H.M.); (L.C.)
| | - Lysanne Campeau
- Lady Davis Research Institute for Medical Research, Jewish General Hospital, Montreal, QC H3T 1E2, Canada; (P.G.C.); (A.H.M.); (L.C.)
- Division of Urology, Department of Surgery, Jewish General Hospital, McGill University, Montreal, QCH3T 1E2, Canada
| | - Indra R. Gupta
- Department of Human Genetics, McGill University, Montreal, QC H3A 0C7, Canada;
- Research Institute of the McGill University Health Center, Montreal, QC H3H 2R9, Canada
- Department of Pediatrics, McGill University, Montreal, QC H4A 3J1, Canada
- Correspondence:
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26
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Collins BC, Kardon G. It takes all kinds: heterogeneity among satellite cells and fibro-adipogenic progenitors during skeletal muscle regeneration. Development 2021; 148:dev199861. [PMID: 34739030 PMCID: PMC8602941 DOI: 10.1242/dev.199861] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Vertebrate skeletal muscle is composed of multinucleate myofibers that are surrounded by muscle connective tissue. Following injury, muscle is able to robustly regenerate because of tissue-resident muscle stem cells, called satellite cells. In addition, efficient and complete regeneration depends on other cells resident in muscle - including fibro-adipogenic progenitors (FAPs). Increasing evidence from single-cell analyses and genetic and transplantation experiments suggests that satellite cells and FAPs are heterogeneous cell populations. Here, we review our current understanding of the heterogeneity of satellite cells, their myogenic derivatives and FAPs in terms of gene expression, anatomical location, age and timing during the regenerative process - each of which have potentially important functional consequences.
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Affiliation(s)
| | - Gabrielle Kardon
- Department of Human Genetics, University of Utah, Salt Lake City, UT 84112, USA
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27
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Contreras O, Rossi FMV, Theret M. Origins, potency, and heterogeneity of skeletal muscle fibro-adipogenic progenitors-time for new definitions. Skelet Muscle 2021; 11:16. [PMID: 34210364 PMCID: PMC8247239 DOI: 10.1186/s13395-021-00265-6] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 03/22/2021] [Indexed: 12/13/2022] Open
Abstract
Striated muscle is a highly plastic and regenerative organ that regulates body movement, temperature, and metabolism-all the functions needed for an individual's health and well-being. The muscle connective tissue's main components are the extracellular matrix and its resident stromal cells, which continuously reshape it in embryonic development, homeostasis, and regeneration. Fibro-adipogenic progenitors are enigmatic and transformative muscle-resident interstitial cells with mesenchymal stem/stromal cell properties. They act as cellular sentinels and physiological hubs for adult muscle homeostasis and regeneration by shaping the microenvironment by secreting a complex cocktail of extracellular matrix components, diffusible cytokines, ligands, and immune-modulatory factors. Fibro-adipogenic progenitors are the lineage precursors of specialized cells, including activated fibroblasts, adipocytes, and osteogenic cells after injury. Here, we discuss current research gaps, potential druggable developments, and outstanding questions about fibro-adipogenic progenitor origins, potency, and heterogeneity. Finally, we took advantage of recent advances in single-cell technologies combined with lineage tracing to unify the diversity of stromal fibro-adipogenic progenitors. Thus, this compelling review provides new cellular and molecular insights in comprehending the origins, definitions, markers, fate, and plasticity of murine and human fibro-adipogenic progenitors in muscle development, homeostasis, regeneration, and repair.
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Affiliation(s)
- Osvaldo Contreras
- Developmental and Stem Cell Biology Division, Victor Chang Cardiac Research Institute, Darlinghurst, NSW, 2010, Australia.
- St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Kensington, 2052, Australia.
- Departamento de Biología Celular y Molecular and Center for Aging and Regeneration (CARE-ChileUC), Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, 8331150, Santiago, Chile.
| | - Fabio M V Rossi
- Biomedical Research Centre, Department of Medical Genetics and School of Biomedical Engineering, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Marine Theret
- Biomedical Research Centre, Department of Medical Genetics and School of Biomedical Engineering, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada.
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28
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Waisman A, Norris AM, Elías Costa M, Kopinke D. Automatic and unbiased segmentation and quantification of myofibers in skeletal muscle. Sci Rep 2021; 11:11793. [PMID: 34083673 PMCID: PMC8175575 DOI: 10.1038/s41598-021-91191-6] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 05/24/2021] [Indexed: 12/05/2022] Open
Abstract
Skeletal muscle has the remarkable ability to regenerate. However, with age and disease muscle strength and function decline. Myofiber size, which is affected by injury and disease, is a critical measurement to assess muscle health. Here, we test and apply Cellpose, a recently developed deep learning algorithm, to automatically segment myofibers within murine skeletal muscle. We first show that tissue fixation is necessary to preserve cellular structures such as primary cilia, small cellular antennae, and adipocyte lipid droplets. However, fixation generates heterogeneous myofiber labeling, which impedes intensity-based segmentation. We demonstrate that Cellpose efficiently delineates thousands of individual myofibers outlined by a variety of markers, even within fixed tissue with highly uneven myofiber staining. We created a novel ImageJ plugin (LabelsToRois) that allows processing of multiple Cellpose segmentation images in batch. The plugin also contains a semi-automatic erosion function to correct for the area bias introduced by the different stainings, thereby identifying myofibers as accurately as human experts. We successfully applied our segmentation pipeline to uncover myofiber regeneration differences between two different muscle injury models, cardiotoxin and glycerol. Thus, Cellpose combined with LabelsToRois allows for fast, unbiased, and reproducible myofiber quantification for a variety of staining and fixation conditions.
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Affiliation(s)
- Ariel Waisman
- CONICET - Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Laboratorio de Investigación Aplicada a Neurociencias (LIAN), Buenos Aires, Argentina.
| | - Alessandra Marie Norris
- Department of Pharmacology and Therapeutics, University of Florida College of Medicine, Gainesville, 32610, FL, USA.,Myology Institute, University of Florida College of Medicine, Gainesville, FL, USA
| | | | - Daniel Kopinke
- Department of Pharmacology and Therapeutics, University of Florida College of Medicine, Gainesville, 32610, FL, USA. .,Myology Institute, University of Florida College of Medicine, Gainesville, FL, USA.
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29
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Biferali B, Bianconi V, Perez DF, Kronawitter SP, Marullo F, Maggio R, Santini T, Polverino F, Biagioni S, Summa V, Toniatti C, Pasini D, Stricker S, Di Fabio R, Chiacchiera F, Peruzzi G, Mozzetta C. Prdm16-mediated H3K9 methylation controls fibro-adipogenic progenitors identity during skeletal muscle repair. SCIENCE ADVANCES 2021; 7:7/23/eabd9371. [PMID: 34078594 PMCID: PMC8172132 DOI: 10.1126/sciadv.abd9371] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 04/06/2021] [Indexed: 05/15/2023]
Abstract
H3K9 methylation maintains cell identity orchestrating stable silencing and anchoring of alternate fate genes within the heterochromatic compartment underneath the nuclear lamina (NL). However, how cell type-specific genomic regions are specifically targeted to the NL is still elusive. Using fibro-adipogenic progenitors (FAPs) as a model, we identified Prdm16 as a nuclear envelope protein that anchors H3K9-methylated chromatin in a cell-specific manner. We show that Prdm16 mediates FAP developmental capacities by orchestrating lamina-associated domain organization and heterochromatin sequestration at the nuclear periphery. We found that Prdm16 localizes at the NL where it cooperates with the H3K9 methyltransferases G9a/GLP to mediate tethering and silencing of myogenic genes, thus repressing an alternative myogenic fate in FAPs. Genetic and pharmacological disruption of this repressive pathway confers to FAP myogenic competence, preventing fibro-adipogenic degeneration of dystrophic muscles. In summary, we reveal a druggable mechanism of heterochromatin perinuclear sequestration exploitable to reprogram FAPs in vivo.
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Affiliation(s)
- Beatrice Biferali
- Institute of Molecular Biology and Pathology (IBPM), National Research Council (CNR) of Italy c/o Department of Biology and Biotechnology "C. Darwin," Sapienza University, 00185 Rome, Italy
- Department of Biology and Biotechnology "C. Darwin," Sapienza University, 00185 Rome, Italy
| | - Valeria Bianconi
- Institute of Molecular Biology and Pathology (IBPM), National Research Council (CNR) of Italy c/o Department of Biology and Biotechnology "C. Darwin," Sapienza University, 00185 Rome, Italy
- Department of Biology and Biotechnology "C. Darwin," Sapienza University, 00185 Rome, Italy
| | - Daniel Fernandez Perez
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, Via Adamello 16, 20139 Milan, Italy
| | | | - Fabrizia Marullo
- Institute of Molecular Biology and Pathology (IBPM), National Research Council (CNR) of Italy c/o Department of Biology and Biotechnology "C. Darwin," Sapienza University, 00185 Rome, Italy
- Department of Biology and Biotechnology "C. Darwin," Sapienza University, 00185 Rome, Italy
| | - Roberta Maggio
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Tiziana Santini
- Department of Biology and Biotechnology "C. Darwin," Sapienza University, 00185 Rome, Italy
- Center for Life Nano- & Neuro-Science, Fondazione Istituto Italiano di Tecnologia (IIT), 00161 Rome, Italy
| | - Federica Polverino
- Institute of Molecular Biology and Pathology (IBPM), National Research Council (CNR) of Italy c/o Department of Biology and Biotechnology "C. Darwin," Sapienza University, 00185 Rome, Italy
| | - Stefano Biagioni
- Department of Biology and Biotechnology "C. Darwin," Sapienza University, 00185 Rome, Italy
| | - Vincenzo Summa
- IRBM Science Park, Via Pontina Km 30.600, 00070 Pomezia, Italy
| | - Carlo Toniatti
- IRBM Science Park, Via Pontina Km 30.600, 00070 Pomezia, Italy
| | - Diego Pasini
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, Via Adamello 16, 20139 Milan, Italy
- Department of Health Sciences, University of Milan, Via A. di Rudini 8, 20142 Milan, Italy
| | - Sigmar Stricker
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Romano Di Fabio
- IRBM Science Park, Via Pontina Km 30.600, 00070 Pomezia, Italy
- Promidis, Via Olgettina 60, 20132 Milano, Italy
| | - Fulvio Chiacchiera
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Giovanna Peruzzi
- Center for Life Nano- & Neuro-Science, Fondazione Istituto Italiano di Tecnologia (IIT), 00161 Rome, Italy
| | - Chiara Mozzetta
- Institute of Molecular Biology and Pathology (IBPM), National Research Council (CNR) of Italy c/o Department of Biology and Biotechnology "C. Darwin," Sapienza University, 00185 Rome, Italy.
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30
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Theret M, Rossi FMV, Contreras O. Evolving Roles of Muscle-Resident Fibro-Adipogenic Progenitors in Health, Regeneration, Neuromuscular Disorders, and Aging. Front Physiol 2021; 12:673404. [PMID: 33959042 PMCID: PMC8093402 DOI: 10.3389/fphys.2021.673404] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 03/19/2021] [Indexed: 02/06/2023] Open
Abstract
Normal skeletal muscle functions are affected following trauma, chronic diseases, inherited neuromuscular disorders, aging, and cachexia, hampering the daily activities and quality of life of the affected patients. The maladaptive accumulation of fibrous intramuscular connective tissue and fat are hallmarks of multiple pathologies where chronic damage and inflammation are not resolved, leading to progressive muscle replacement and tissue degeneration. Muscle-resident fibro-adipogenic progenitors are adaptable stromal cells with multilineage potential. They are required for muscle homeostasis, neuromuscular integrity, and tissue regeneration. Fibro-adipogenic progenitors actively regulate and shape the extracellular matrix and exert immunomodulatory functions via cross-talk with multiple other residents and non-resident muscle cells. Remarkably, cumulative evidence shows that a significant proportion of activated fibroblasts, adipocytes, and bone-cartilage cells, found after muscle trauma and disease, descend from these enigmatic interstitial progenitors. Despite the profound impact of muscle disease on human health, the fibrous, fatty, and ectopic bone tissues' origins are poorly understood. Here, we review the current knowledge of fibro-adipogenic progenitor function on muscle homeostatic integrity, regeneration, repair, and aging. We also discuss how scar-forming pathologies and disorders lead to dysregulations in their behavior and plasticity and how these stromal cells can control the onset and severity of muscle loss in disease. We finally explore the rationale of improving muscle regeneration by understanding and modulating fibro-adipogenic progenitors' fate and behavior.
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Affiliation(s)
- Marine Theret
- Biomedical Research Centre, Department of Medical Genetics, School of Biomedical Engineering, The University of British Columbia, Vancouver, BC, Canada
| | - Fabio M. V. Rossi
- Biomedical Research Centre, Department of Medical Genetics, School of Biomedical Engineering, The University of British Columbia, Vancouver, BC, Canada
| | - Osvaldo Contreras
- Departamento de Biología Celular y Molecular, Center for Aging and Regeneration (CARE-ChileUC), Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- St. Vincent’s Clinical School, Faculty of Medicine, UNSW Sydney, Kensington, NSW, Australia
- Developmental and Stem Cell Biology Division, Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia
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31
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Wei X, Franke J, Ost M, Wardelmann K, Börno S, Timmermann B, Meierhofer D, Kleinridders A, Klaus S, Stricker S. Cell autonomous requirement of neurofibromin (Nf1) for postnatal muscle hypertrophic growth and metabolic homeostasis. J Cachexia Sarcopenia Muscle 2020; 11:1758-1778. [PMID: 33078583 PMCID: PMC7749575 DOI: 10.1002/jcsm.12632] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 07/09/2020] [Accepted: 09/10/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Neurofibromatosis type 1 (NF1) is a multi-organ disease caused by mutations in neurofibromin 1 (NF1). Amongst other features, NF1 patients frequently show reduced muscle mass and strength, impairing patients' mobility and increasing the risk of fall. The role of Nf1 in muscle and the cause for the NF1-associated myopathy are mostly unknown. METHODS To dissect the function of Nf1 in muscle, we created muscle-specific knockout mouse models for NF1, inactivating Nf1 in the prenatal myogenic lineage either under the Lbx1 promoter or under the Myf5 promoter. Mice were analysed during prenatal and postnatal myogenesis and muscle growth. RESULTS Nf1Lbx1 and Nf1Myf5 animals showed only mild defects in prenatal myogenesis. Nf1Lbx1 animals were perinatally lethal, while Nf1Myf5 animals survived only up to approximately 25 weeks. A comprehensive phenotypic characterization of Nf1Myf5 animals showed decreased postnatal growth, reduced muscle size, and fast fibre atrophy. Proteome and transcriptome analyses of muscle tissue indicated decreased protein synthesis and increased proteasomal degradation, and decreased glycolytic and increased oxidative activity in muscle tissue. High-resolution respirometry confirmed enhanced oxidative metabolism in Nf1Myf5 muscles, which was concomitant to a fibre type shift from type 2B to type 2A and type 1. Moreover, Nf1Myf5 muscles showed hallmarks of decreased activation of mTORC1 and increased expression of atrogenes. Remarkably, loss of Nf1 promoted a robust activation of AMPK with a gene expression profile indicative of increased fatty acid catabolism. Additionally, we observed a strong induction of genes encoding catabolic cytokines in muscle Nf1Myf5 animals, in line with a drastic reduction of white, but not brown adipose tissue. CONCLUSIONS Our results demonstrate a cell autonomous role for Nf1 in myogenic cells during postnatal muscle growth required for metabolic and proteostatic homeostasis. Furthermore, Nf1 deficiency in muscle drives cross-tissue communication and mobilization of lipid reserves.
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Affiliation(s)
- Xiaoyan Wei
- Musculoskeletal Development and Regeneration Group, Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany.,Development and Disease Group, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Julia Franke
- Musculoskeletal Development and Regeneration Group, Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany.,Development and Disease Group, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Mario Ost
- Department of Physiology of Energy Metabolism, German Institute for Human Nutrition, Nuthetal, Germany.,Department of Neuropathology, University Hospital Leipzig, Leipzig, Germany
| | - Kristina Wardelmann
- Junior Research Group Central Regulation of Metabolism, German Institute for Human Nutrition, Nuthetal, Germany.,Institute of Nutritional Science, Department of Molecular and Experimental Nutritional Medicine, University of Potsdam, Potsdam, Germany
| | - Stefan Börno
- Sequencing Core Unit, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Bernd Timmermann
- Sequencing Core Unit, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - David Meierhofer
- Mass Spectrometry Core Unit, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Andre Kleinridders
- Junior Research Group Central Regulation of Metabolism, German Institute for Human Nutrition, Nuthetal, Germany.,Institute of Nutritional Science, Department of Molecular and Experimental Nutritional Medicine, University of Potsdam, Potsdam, Germany.,German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Susanne Klaus
- Department of Physiology of Energy Metabolism, German Institute for Human Nutrition, Nuthetal, Germany.,Institute of Nutritional Science, University of Potsdam, Potsdam, Germany
| | - Sigmar Stricker
- Musculoskeletal Development and Regeneration Group, Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany.,Development and Disease Group, Max Planck Institute for Molecular Genetics, Berlin, Germany
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32
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Vogel P, Ding ZM, Read R, DaCosta CM, Hansard M, Small DL, Ye GL, Hansen G, Brommage R, Powell DR. Progressive Degenerative Myopathy and Myosteatosis in ASNSD1-Deficient Mice. Vet Pathol 2020; 57:723-735. [PMID: 32638637 DOI: 10.1177/0300985820939251] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mice with an inactivating mutation in the gene encoding asparagine synthetase domain containing 1 (ASNSD1) develop a progressive degenerative myopathy that results in severe sarcopenia and myosteatosis. ASNSD1 is conserved across many species, and whole body gene expression surveys show maximal expression levels of ASNSD1 in skeletal muscle. However, potential functions of this protein have not been previously reported. Asnsd1-/- mice demonstrated severe muscle weakness, and their normalized body fat percentage on both normal chow and high fat diets was greater than 2 SD above the mean for 3651 chow-fed and 2463 high-fat-diet-fed knockout (KO) lines tested. Histologic lesions were essentially limited to the muscle and were characterized by a progressive degenerative myopathy with extensive transdifferentiation and replacement of muscle by well-differentiated adipose tissue. There was minimal inflammation, fibrosis, and muscle regeneration associated with this myopathy. In addition, the absence of any signs of lipotoxicity in Asnsd1-/- mice despite their extremely elevated body fat percentage and low muscle mass suggests a role for metabolic dysfunctions in the development of this phenotype. Asnsd1-/- mice provide the first insight into the function of this protein, and this mouse model could prove useful in elucidating fundamental metabolic interactions between skeletal muscle and adipose tissue.
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Affiliation(s)
- Peter Vogel
- 57636Lexicon Pharmaceuticals Inc, The Woodlands, TX, USA
| | - Zhi-Ming Ding
- 57636Lexicon Pharmaceuticals Inc, The Woodlands, TX, USA
| | - Robert Read
- 57636Lexicon Pharmaceuticals Inc, The Woodlands, TX, USA
| | | | | | - Daniel L Small
- 57636Lexicon Pharmaceuticals Inc, The Woodlands, TX, USA
| | - Gui-Lan Ye
- 57636Lexicon Pharmaceuticals Inc, The Woodlands, TX, USA
| | - Gwenn Hansen
- 57636Lexicon Pharmaceuticals Inc, The Woodlands, TX, USA
| | | | - David R Powell
- 57636Lexicon Pharmaceuticals Inc, The Woodlands, TX, USA
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33
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Helmbacher F, Stricker S. Tissue cross talks governing limb muscle development and regeneration. Semin Cell Dev Biol 2020; 104:14-30. [PMID: 32517852 DOI: 10.1016/j.semcdb.2020.05.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 05/07/2020] [Accepted: 05/08/2020] [Indexed: 12/14/2022]
Abstract
For decades, limb development has been a paradigm of three-dimensional patterning. Moreover, as the limb muscles and the other tissues of the limb's musculoskeletal system arise from distinct developmental sources, it has been a prime example of integrative morphogenesis and cross-tissue communication. As the limbs grow, all components of the musculoskeletal system (muscles, tendons, connective tissue, nerves) coordinate their growth and differentiation, ultimately giving rise to a functional unit capable of executing elaborate movement. While the molecular mechanisms governing global three-dimensional patterning and formation of the skeletal structures of the limbs has been a matter of intense research, patterning of the soft tissues is less understood. Here, we review the development of limb muscles with an emphasis on their interaction with other tissue types and the instructive roles these tissues play. Furthermore, we discuss the role of adult correlates of these embryonic accessory tissues in muscle regeneration.
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Affiliation(s)
| | - Sigmar Stricker
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany.
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34
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Agha O, Mueller‐Immergluck A, Liu M, Zhang H, Theologis AA, Clark A, Kim HT, Liu X, Feeley BT, Bailey JF. Intervertebral disc herniation effects on multifidus muscle composition and resident stem cell populations. JOR Spine 2020; 3:e1091. [PMID: 32613166 PMCID: PMC7323461 DOI: 10.1002/jsp2.1091] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 04/14/2020] [Accepted: 04/19/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Paraspinal muscles are crucial for vertebral stabilization and movement. These muscles are prone to develop fatty infiltration (FI), fibrosis, and atrophy in many spine conditions. Fibro-adipogenic progenitors (FAPs), a resident muscle stem cell population, are the main contributors of muscle fibrosis and FI. FAPs are involved in a complex interplay with satellite cells (SCs), the primary myogenic progenitor cells within muscle. Little is known about the stem cell composition of the multifidus. The aim of this study is to examine FAPs and SCs in the multifidus in disc herniation patients. Multifidus muscle samples were collected from 10 patients undergoing decompressive spine surgery for lumbar disc herniation. Hamstring muscle was collected from four patients undergoing hamstring autograft ACL reconstruction as an appendicular control. Multifidus tissue was analyzed for FI and fibrosis using Oil-Red-O and Masson's trichrome staining. FAPs and SCs were visualized using immunostaining and quantified with fluorescence-activated cell sorting (FACS) sorting. Gene expression of these cells from the multifidus were analyzed with reverse transcription-polymerase chain reaction and compared to those from hamstring muscle. FI and fibrosis accounted for 14.2%± 7.4% and 14.8%±4.2% of multifidus muscle, respectively. The multifidus contained more FAPs (11.7%±1.9% vs 1.4%±0.2%; P<.001) and more SCs (3.4%±1.6% vs 0.08%±0.02%; P=.002) than the hamstring. FAPs had greater α Smooth Muscle Actin (αSMA) and adipogenic gene expression than FAPs from the hamstring. SCs from the multifidus displayed upregulated expression of stem, proliferation, and differentiation genes. CONCLUSION The multifidus in patients with disc herniation contains large percentages of FAPs and SCs with different gene expression profiles compared to those in the hamstring. These results may help explain the tendency for the multifidus to atrophy and form FI and fibrosis as well as elucidate potential approaches for mitigating these degenerative changes by leveraging these muscle stem cell populations.
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Affiliation(s)
- Obiajulu Agha
- Department of Orthopaedic SurgeryUniversity of CaliforniaSan FranciscoCaliforniaUSA
- Department of Orthopaedic SurgerySan Francisco Veterans Affair Health Care SystemSan FranciscoCaliforniaUSA
| | - Andreas Mueller‐Immergluck
- Department of Orthopaedic SurgeryUniversity of CaliforniaSan FranciscoCaliforniaUSA
- Department of Orthopaedic SurgerySan Francisco Veterans Affair Health Care SystemSan FranciscoCaliforniaUSA
| | - Mengyao Liu
- Department of Orthopaedic SurgeryUniversity of CaliforniaSan FranciscoCaliforniaUSA
- Department of Orthopaedic SurgerySan Francisco Veterans Affair Health Care SystemSan FranciscoCaliforniaUSA
| | - He Zhang
- Department of Orthopaedic SurgeryUniversity of CaliforniaSan FranciscoCaliforniaUSA
- Department of Orthopaedic SurgerySan Francisco Veterans Affair Health Care SystemSan FranciscoCaliforniaUSA
- Department of Exercise PhysiologyBeijing Sport UniversityBeijingChina
| | - Alekos A. Theologis
- Department of Orthopaedic SurgeryUniversity of CaliforniaSan FranciscoCaliforniaUSA
- Department of Orthopaedic SurgerySan Francisco Veterans Affair Health Care SystemSan FranciscoCaliforniaUSA
| | - Aaron Clark
- Department of NeurosurgeryUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Hubert T. Kim
- Department of Orthopaedic SurgeryUniversity of CaliforniaSan FranciscoCaliforniaUSA
- Department of Orthopaedic SurgerySan Francisco Veterans Affair Health Care SystemSan FranciscoCaliforniaUSA
| | - Xuhui Liu
- Department of Orthopaedic SurgeryUniversity of CaliforniaSan FranciscoCaliforniaUSA
- Department of Orthopaedic SurgerySan Francisco Veterans Affair Health Care SystemSan FranciscoCaliforniaUSA
| | - Brian T. Feeley
- Department of Orthopaedic SurgeryUniversity of CaliforniaSan FranciscoCaliforniaUSA
- Department of Orthopaedic SurgerySan Francisco Veterans Affair Health Care SystemSan FranciscoCaliforniaUSA
| | - Jeannie F. Bailey
- Department of Orthopaedic SurgeryUniversity of CaliforniaSan FranciscoCaliforniaUSA
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35
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Oprescu SN, Yue F, Qiu J, Brito LF, Kuang S. Temporal Dynamics and Heterogeneity of Cell Populations during Skeletal Muscle Regeneration. iScience 2020; 23:100993. [PMID: 32248062 PMCID: PMC7125354 DOI: 10.1016/j.isci.2020.100993] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/08/2020] [Accepted: 03/13/2020] [Indexed: 12/20/2022] Open
Abstract
Mammalian skeletal muscle possesses a unique ability to regenerate, which is primarily mediated by a population of resident muscle stem cells (MuSCs) and requires a concerted response from other supporting cell populations. Previous targeted analysis has described the involvement of various specific populations in regeneration, but an unbiased and simultaneous evaluation of all cell populations has been limited. Therefore, we used single-cell RNA-sequencing to uncover gene expression signatures of over 53,000 individual cells during skeletal muscle regeneration. Cells clustered into 25 populations and subpopulations, including a subpopulation of immune gene enriched myoblasts (immunomyoblasts) and subpopulations of fibro-adipogenic progenitors. Our analyses also uncovered striking spatiotemporal dynamics in gene expression, population composition, and cell-cell interaction during muscle regeneration. These findings provide insights into the cellular and molecular underpinning of skeletal muscle regeneration.
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Affiliation(s)
- Stephanie N Oprescu
- Department of Biological Sciences, Purdue University, 915 W State St, West Lafayette, IN 47907, USA
| | - Feng Yue
- Department of Animal Sciences, Purdue University, 270 S Russell St, West Lafayette, IN 47907, USA
| | - Jiamin Qiu
- Department of Animal Sciences, Purdue University, 270 S Russell St, West Lafayette, IN 47907, USA
| | - Luiz F Brito
- Department of Animal Sciences, Purdue University, 270 S Russell St, West Lafayette, IN 47907, USA
| | - Shihuan Kuang
- Department of Biological Sciences, Purdue University, 915 W State St, West Lafayette, IN 47907, USA; Department of Animal Sciences, Purdue University, 270 S Russell St, West Lafayette, IN 47907, USA; Center for Cancer Research, Purdue University, 201 S University St, West Lafayette, IN 47907, USA.
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36
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Zumwalt M, Reddy AP. Stem Cells for Treatment of Musculoskeletal Conditions - Orthopaedic/Sports Medicine Applications. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165624. [PMID: 31794866 DOI: 10.1016/j.bbadis.2019.165624] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 11/22/2019] [Accepted: 11/23/2019] [Indexed: 12/20/2022]
Abstract
A myriad of musculoskeletal conditions afflicts a vast number of the world's population from birth to death. Countless pathological diseases and traumatic injuries (acute and chronic) contribute to different human disabilities, causing a tremendous financial toll on the economy of healthcare. The medical field is continually searching for novel ways to combat orthopedically related conditions. The immediate goal is the restoration of anatomy then ultimately return of function in hopes of enhancing quality if not the quantity of life. Traditional methods involve surgical correction/reconstruction of skeletal deformities from fractures/soft tissue damage/ruptures or replacement/resection of degenerated joints. Modern research is currently concentrating on innovative procedures to replenish/restore the human body close to its original/natural state [1, 2].
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Affiliation(s)
- Mimi Zumwalt
- Texas Tech University Health Sciences Center, Department of Orthopaedic Surgery, 3601 4(th) Street STOP 9436, Lubbock, TX 79430 United States of America.
| | - Arubala P Reddy
- Texas Tech University, 1301 Akron Avenue, Lubbock, TX 79409 United States of America.
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37
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Dai Y, Lv Q, Qi T, Qu J, Ni H, Liao Y, Liu P, Qu Q. Identification of hub methylated-CpG sites and associated genes in oral squamous cell carcinoma. Cancer Med 2020; 9:3174-3187. [PMID: 32155325 PMCID: PMC7196066 DOI: 10.1002/cam4.2969] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 02/07/2020] [Accepted: 02/16/2020] [Indexed: 12/15/2022] Open
Abstract
To improve personalized diagnosis and prognosis for oral squamous cell carcinoma (OSCC) by identification of hub methylated‐CpG sites and associated genes, weighted gene comethylation network analysis (WGCNA) was performed to examine and identify hub modules and CpG sites correlated with OSCC. Here, WGCNA modeling yielded blue and brown comethylation modules that were significantly associated with OSCC status. Following screening of the differentially expressed genes (DEGs) from gene expression microarrays and differentially methylated‐CpG sites (DCGs), integrated multiomics analysis of the DEGs, DCGs, and hub CpG sites from the modules was performed to investigate their correlations. Expression levels of 16 CpG sites‐associated genes were negatively correlated with methylation patterns of promoter. Moreover, Kaplan‐Meier survival analysis of the hub CpG sites and associated genes was carried out using 2 public databases, MethSurv and GEPIA. Only 5 genes, ACTA1, ACTN2, OSR1, SYNGR1, and ZNF677, had significant overall survival using GEPIA. Hypermethylated‐CpG sites ACTN2‐cg21376883 and OSR1‐cg06509239 were found to be associated with poor survival by MethSurv. Methylation status of specific site and expression levels of associated genes were determined using clinical samples by quantitative methylation‐specific PCR and real‐time PCR. Pearson's correlation analysis showed that methylation levels of cg06509239 and cg18335068 were negatively related to OSR1 and ZNF677 expression levels, respectively. Our classification schema using multiomics analysis represents a screening framework for identification of hub CpG sites and associated genes.
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Affiliation(s)
- Yuxin Dai
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Department of Biochemistry and Molecular Biology, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Qiaoli Lv
- Department of Science and Education, Jiangxi Key Laboratory of Translational Cancer Research, Jiangxi Cancer Hospital, Nanchang, Jiangxi, China
| | - Tingting Qi
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jian Qu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hongli Ni
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yongkang Liao
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, China
| | - Peng Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, China
| | - Qiang Qu
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
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38
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Contreras O. Hic1 deletion unleashes quiescent connective tissue stem cells and impairs skeletal muscle regeneration. J Cell Commun Signal 2020; 14:131-133. [PMID: 31865519 PMCID: PMC7176797 DOI: 10.1007/s12079-019-00545-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 12/13/2019] [Indexed: 12/13/2022] Open
Abstract
Skeletal muscle fibro-adipogenic progenitors (FAPs) are tissue-resident connective tissue cells and the main cellular source of pathological fibro-fatty scar associated with muscle disorders. Although our knowledge about skeletal muscle mesenchymal progenitor cells has exploded in the past decade, we still lack information about their origin, fate, gene regulation, function, and stemness. A recent study by Underhill and colleagues, published in Cell Stem Cell, described the last census of Hic1 mesenchymal progenitor/stem cells in skeletal muscle regeneration, providing valuable results and data to the ever-expanding community of scientists interested in tissue regeneration and fibrosis. This commentary contextualizes and summarizes these exciting new findings.
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Affiliation(s)
- Osvaldo Contreras
- Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, 8331150, Santiago, Chile.
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39
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Collao N, Farup J, De Lisio M. Role of Metabolic Stress and Exercise in Regulating Fibro/Adipogenic Progenitors. Front Cell Dev Biol 2020; 8:9. [PMID: 32047748 PMCID: PMC6997132 DOI: 10.3389/fcell.2020.00009] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 01/10/2020] [Indexed: 12/15/2022] Open
Abstract
Obesity is a major public health concern and is associated with decreased muscle quality (i.e., strength, metabolism). Muscle from obese adults is characterized by increases in fatty, fibrotic tissue that decreases the force producing capacity of muscle and impairs glucose disposal. Fibro/adipogenic progenitors (FAPs) are muscle resident, multipotent stromal cells that are responsible for muscle fibro/fatty tissue accumulation. Additionally, they are indirectly involved in muscle adaptation through their promotion of myogenic (muscle-forming) satellite cell proliferation and differentiation. In conditions similar to obesity that are characterized by chronic muscle degeneration, FAP dysfunction has been shown to be responsible for increased fibro/fatty tissue accumulation in skeletal muscle, and impaired satellite cell function. The role of metabolic stress in regulating FAP differentiation and paracrine function in skeletal muscle is just beginning to be unraveled. Thus, the present review aims to summarize the recent literature on the role of metabolic stress in regulating FAP differentiation and paracrine function in skeletal muscle, and the mechanisms responsible for these effects. Furthermore, we will review the role of physical activity in reversing or ameliorating the detrimental effects of obesity on FAP function.
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Affiliation(s)
- Nicolas Collao
- School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada
| | - Jean Farup
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Michael De Lisio
- School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada
- Department of Cellular and Molecular Medicine, Centre for Neuromuscular Disease, University of Ottawa, Ottawa, ON, Canada
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40
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Survival of endogenous hepatic stem/progenitor cells in liver tissues during liver cirrhosis. Life Sci 2020; 241:117121. [DOI: 10.1016/j.lfs.2019.117121] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 11/19/2019] [Accepted: 11/28/2019] [Indexed: 12/22/2022]
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41
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Review: Enhancing intramuscular fat development via targeting fibro-adipogenic progenitor cells in meat animals. Animal 2019; 14:312-321. [PMID: 31581971 DOI: 10.1017/s175173111900209x] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In the livestock industry, subcutaneous and visceral fat pads are considered as wastes, while intramuscular fat or marbling fat is essential for improving flavor and palatability of meat. Thus, strategies for optimizing fat deposition are needed. Intramuscular adipocytes provide sites for lipid deposition and marbling formation. In the present article, we addressed the origin and markers of intramuscular adipocyte progenitors - fibro-adipogenic progenitors (FAPs), as well as the latest progresses in mechanisms regulating the proliferation and differentiation of intramuscular FAPs. Finally, by targeting intramuscular FAPs, possible nutritional manipulations to improve marbling fat deposition are discussed. Despite recent progresses, the properties and regulation of intramuscular FAPs in livestock remain poorly understood and deserve further investigation.
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42
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Palma A, Cerquone Perpetuini A, Ferrentino F, Fuoco C, Gargioli C, Giuliani G, Iannuccelli M, Licata L, Micarelli E, Paoluzi S, Perfetto L, Petrilli LL, Reggio A, Rosina M, Sacco F, Vumbaca S, Zuccotti A, Castagnoli L, Cesareni G. Myo-REG: A Portal for Signaling Interactions in Muscle Regeneration. Front Physiol 2019; 10:1216. [PMID: 31611808 PMCID: PMC6776608 DOI: 10.3389/fphys.2019.01216] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 09/06/2019] [Indexed: 12/12/2022] Open
Abstract
Muscle regeneration is a complex process governed by the interplay between several muscle-resident mononuclear cell populations. Following acute or chronic damage these cell populations are activated, communicate via cell-cell interactions and/or paracrine signals, influencing fate decisions via the activation or repression of internal signaling cascades. These are highly dynamic processes, occurring with distinct temporal and spatial kinetics. The main challenge toward a system level description of the muscle regeneration process is the integration of this plethora of inter- and intra-cellular interactions. We integrated the information on muscle regeneration in a web portal. The scientific content annotated in this portal is organized into two information layers representing relationships between different cell types and intracellular signaling-interactions, respectively. The annotation of the pathways governing the response of each cell type to a variety of stimuli/perturbations occurring during muscle regeneration takes advantage of the information stored in the SIGNOR database. Additional curation efforts have been carried out to increase the coverage of molecular interactions underlying muscle regeneration and to annotate cell-cell interactions. To facilitate the access to information on cell and molecular interactions in the context of muscle regeneration, we have developed Myo-REG, a web portal that captures and integrates published information on skeletal muscle regeneration. The muscle-centered resource we provide is one of a kind in the myology field. A friendly interface allows users to explore, approximately 100 cell interactions or to analyze intracellular pathways related to muscle regeneration. Finally, we discuss how data can be extracted from this portal to support in silico modeling experiments.
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Affiliation(s)
- Alessandro Palma
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | | | | | - Claudia Fuoco
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Cesare Gargioli
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Giulio Giuliani
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | | | - Luana Licata
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Elisa Micarelli
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Serena Paoluzi
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Livia Perfetto
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | | | - Alessio Reggio
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Marco Rosina
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Francesca Sacco
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Simone Vumbaca
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | | | - Luisa Castagnoli
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Gianni Cesareni
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
- Fondazione Santa Lucia Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
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43
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Multifunctional Alleles: A novel method for the generation of "All-In-One" null and conditional alleles. Methods 2019; 164-165:91-99. [PMID: 31039396 DOI: 10.1016/j.ymeth.2019.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 04/07/2019] [Accepted: 04/22/2019] [Indexed: 11/20/2022] Open
Abstract
The engineering of conditional alleles has evolved from simple floxing of regions of genes to more elaborate methods. Previously, we developed Conditional by Inversion (COIN), an allele design that utilizes an exon-splitting intron and an invertible genetrap-like module (COIN module) to create null alleles upon Cre-mediated inversion. Here we build upon COINs by generating a new Multifunctional Allele (MFA), that utilizes a single gene-targeting step and three site-specific recombination systems, to generate four allelic states: 1. The initial MFA (generated upon targeting) functions as a null with reporter (plus drug selection cassette) allele, wherein the gene of interest is inactivated by both inversion of a critical region of its coding sequence and simultaneous insertion of a reporter gene. MFAs can also be used as 'reverse-conditional' alleles as they are functionally wild type when they are converted to COIN alleles. 2. Null with reporter (minus drug selection cassette), wherein the selection cassette, the inverted critical region, and the COIN module are removed. 3. COIN-based conditional-null via removal of the selection cassette and reporter and simultaneous re-inversion of the critical region of the target. 4. Inverted COIN allele, wherein the COIN allele in turn is reconverted to a null allele by taking advantage of the COIN module's gene trap while simultaneously deleting the critical region.
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Marinkovic M, Fuoco C, Sacco F, Cerquone Perpetuini A, Giuliani G, Micarelli E, Pavlidou T, Petrilli LL, Reggio A, Riccio F, Spada F, Vumbaca S, Zuccotti A, Castagnoli L, Mann M, Gargioli C, Cesareni G. Fibro-adipogenic progenitors of dystrophic mice are insensitive to NOTCH regulation of adipogenesis. Life Sci Alliance 2019; 2:e201900437. [PMID: 31239312 PMCID: PMC6599969 DOI: 10.26508/lsa.201900437] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 06/07/2019] [Indexed: 12/14/2022] Open
Abstract
Fibro-adipogenic progenitors (FAPs) promote satellite cell differentiation in adult skeletal muscle regeneration. However, in pathological conditions, FAPs are responsible for fibrosis and fatty infiltrations. Here we show that the NOTCH pathway negatively modulates FAP differentiation both in vitro and in vivo. However, FAPs isolated from young dystrophin-deficient mdx mice are insensitive to this control mechanism. An unbiased mass spectrometry-based proteomic analysis of FAPs from muscles of wild-type and mdx mice suggested that the synergistic cooperation between NOTCH and inflammatory signals controls FAP differentiation. Remarkably, we demonstrated that factors released by hematopoietic cells restore the sensitivity to NOTCH adipogenic inhibition in mdx FAPs. These results offer a basis for rationalizing pathological ectopic fat infiltrations in skeletal muscle and may suggest new therapeutic strategies to mitigate the detrimental effects of fat depositions in muscles of dystrophic patients.
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Affiliation(s)
| | - Claudia Fuoco
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Francesca Sacco
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
- Department of Proteomics and Signal Transduction, Max-Planck Institute of Biochemistry, Martinsried, Germany
| | | | - Giulio Giuliani
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Elisa Micarelli
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | | | | | - Alessio Reggio
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Federica Riccio
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Filomena Spada
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Simone Vumbaca
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | | | - Luisa Castagnoli
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Matthias Mann
- Department of Proteomics and Signal Transduction, Max-Planck Institute of Biochemistry, Martinsried, Germany
| | - Cesare Gargioli
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Gianni Cesareni
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
- Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Fondazione Santa Lucia, Rome, Italy
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45
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Contreras O, Rossi FM, Brandan E. Adherent muscle connective tissue fibroblasts are phenotypically and biochemically equivalent to stromal fibro/adipogenic progenitors. Matrix Biol Plus 2019; 2:100006. [PMID: 33543006 PMCID: PMC7852197 DOI: 10.1016/j.mbplus.2019.04.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/12/2019] [Accepted: 04/12/2019] [Indexed: 12/16/2022] Open
Abstract
Extracellular matrix (ECM) gives structure, support, and is the niche for several cells found in skeletal muscle. ECM is mainly produced by muscle connective tissue (CT) fibroblasts during development and regeneration. Stromal fibroadipogenic progenitors (FAPs) are CT fibroblasts-like mesenchymal progenitors (MPs) with important roles in regeneration and degeneration. Chronic damage restrains the normal regenerative behavior of muscle fibroblasts/FAPs. Thus, the isolation and study of these mesenchymal progenitors are of crucial importance for understanding their behavior and biology. We investigated whether adult muscle CT fibroblasts (hereafter referred to as adherent fibroblasts [aFbs]) cultured via pre-plating strategy belong to a heterogeneous population of FAPs. By combining microscopy, western blot analyses, flow cytometry, and FACS we determined that aFbs isolated from skeletal muscle largely overlap with FAPs. In addition, we used the PDGFRαEGFP mice in order to corroborate our results with EGFP+ FAPs. Moreover, our strategy allows the isolation of activated EGFP+ FAPs from the murine DMD model PDGFRαEGFP; mdx and PDGFRαEGFP denervated mice. Here we report that 1 h 30 min of pre-plating strategy allows the isolation and culture of a highly enriched population of aFbs. These cells are phenotypically and biochemically a FAPs-like population of adherent cells. In addition, aFbs respond in the same fashion as FAPs to Nilotinib, an inducer of FAPs apoptosis. Moreover, flow cytometry characterization of these aFbs suggests that 85% of them express the MP marker PDGFRα, and isolation of aFbs from the PDGFRαEGFP mice suggests that 75% of them show high EGFP expression. Furthermore, TGF-β1 induces aFbs proliferation, myofibroblast differentiation, and ECM production. We were also able to isolate activated aFbs from skeletal muscle of the DMD mice and from the PDGFRαEGFP mice 2-days after denervation. Our findings suggest that the in vitro pre-plating strategy allows the isolation and culture of a relatively pure aFbs population, which resembles FAPs in vitro.
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Key Words
- Adherent Fibroblasts, aFbs
- Connective tissue, CT
- Extracellular matrix, ECM
- FAPs
- Fibroadipogenic progenitors, FAPs
- Fibrosis
- Fluorescence-activated cell sorting, FACS
- Mesenchymal Progenitors, MPs
- Mesenchymal progenitors
- Muscle stem cells, MuSCs
- PDGFRα
- Platelet-derived growth factor receptor alpha, PDGFRα
- Skeletal muscle
- TGF-β signaling
- Transcription factor, TF
- Transforming growth factor type-beta, (TGF-β)
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Affiliation(s)
- Osvaldo Contreras
- Departamento de Biología Celular y Molecular and Center for Aging and Regeneration (CARE-ChileUC), Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Biomedical Research Centre, Department of Medical Genetics, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, Canada
| | - Fabio M. Rossi
- Biomedical Research Centre, Department of Medical Genetics, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, Canada
| | - Enrique Brandan
- Departamento de Biología Celular y Molecular and Center for Aging and Regeneration (CARE-ChileUC), Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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46
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Sefton EM, Kardon G. Connecting muscle development, birth defects, and evolution: An essential role for muscle connective tissue. Curr Top Dev Biol 2019; 132:137-176. [PMID: 30797508 DOI: 10.1016/bs.ctdb.2018.12.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Skeletal muscle powers all movement of the vertebrate body and is distributed in multiple regions that have evolved distinct functions. Axial muscles are ancestral muscles essential for support and locomotion of the whole body. The evolution of the head was accompanied by development of cranial muscles essential for eye movement, feeding, vocalization, and facial expression. With the evolution of paired fins and limbs and their associated muscles, vertebrates gained increased locomotor agility, populated the land, and acquired fine motor skills. Finally, unique muscles with specialized functions have evolved in some groups, and the diaphragm which solely evolved in mammals to increase respiratory capacity is one such example. The function of all these muscles requires their integration with the other components of the musculoskeletal system: muscle connective tissue (MCT), tendons, bones as well as nerves and vasculature. MCT is muscle's closest anatomical and functional partner. Not only is MCT critical in the adult for muscle structure and function, but recently MCT in the embryo has been found to be crucial for muscle development. In this review, we examine the important role of the MCT in axial, head, limb, and diaphragm muscles for regulating normal muscle development, discuss how defects in MCT-muscle interactions during development underlie the etiology of a range of birth defects, and explore how changes in MCT development or communication with muscle may have led to the modification and acquisition of new muscles during vertebrate evolution.
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Affiliation(s)
- Elizabeth M Sefton
- Department of Human Genetics, University of Utah, Salt Lake City, UT, United States
| | - Gabrielle Kardon
- Department of Human Genetics, University of Utah, Salt Lake City, UT, United States.
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47
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Correra RM, Ollitrault D, Valente M, Mazzola A, Adalsteinsson BT, Ferguson-Smith AC, Marazzi G, Sassoon DA. The imprinted gene Pw1/Peg3 regulates skeletal muscle growth, satellite cell metabolic state, and self-renewal. Sci Rep 2018; 8:14649. [PMID: 30279563 PMCID: PMC6168517 DOI: 10.1038/s41598-018-32941-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 09/18/2018] [Indexed: 12/16/2022] Open
Abstract
Pw1/Peg3 is an imprinted gene expressed from the paternally inherited allele. Several imprinted genes, including Pw1/Peg3, have been shown to regulate overall body size and play a role in adult stem cells. Pw1/Peg3 is expressed in muscle stem cells (satellite cells) as well as a progenitor subset of muscle interstitial cells (PICs) in adult skeletal muscle. We therefore examined the impact of loss-of-function of Pw1/Peg3 during skeletal muscle growth and in muscle stem cell behavior. We found that constitutive loss of Pw1/Peg3 function leads to a reduced muscle mass and myofiber number. In newborn mice, the reduction in fiber number is increased in homozygous mutants as compared to the deletion of only the paternal Pw1/Peg3 allele, indicating that the maternal allele is developmentally functional. Constitutive and a satellite cell-specific deletion of Pw1/Peg3, revealed impaired muscle regeneration and a reduced capacity of satellite cells for self-renewal. RNA sequencing analyses revealed a deregulation of genes that control mitochondrial function. Consistent with these observations, Pw1/Peg3 mutant satellite cells displayed increased mitochondrial activity coupled with accelerated proliferation and differentiation. Our data show that Pw1/Peg3 regulates muscle fiber number determination during fetal development in a gene-dosage manner and regulates satellite cell metabolism in the adult.
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Affiliation(s)
- Rosa Maria Correra
- UMR S 1166 INSERM (Stem Cells and Regenerative Medicine Team), University of Pierre and Marie Curie Paris VI, Paris, 75634, France
- Institute of Cardiometabolism and Nutrition (ICAN), Paris, 75013, France
| | - David Ollitrault
- UMR S 1166 INSERM (Stem Cells and Regenerative Medicine Team), University of Pierre and Marie Curie Paris VI, Paris, 75634, France
- Institute of Cardiometabolism and Nutrition (ICAN), Paris, 75013, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unit 970, Paris Cardiovascular Research Center, Université René Descartes Paris, Paris, France
| | - Mariana Valente
- UMR S 1166 INSERM (Stem Cells and Regenerative Medicine Team), University of Pierre and Marie Curie Paris VI, Paris, 75634, France
- Institute of Cardiometabolism and Nutrition (ICAN), Paris, 75013, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unit 970, Paris Cardiovascular Research Center, Université René Descartes Paris, Paris, France
| | - Alessia Mazzola
- UMR S 1166 INSERM (Stem Cells and Regenerative Medicine Team), University of Pierre and Marie Curie Paris VI, Paris, 75634, France
- Institute of Cardiometabolism and Nutrition (ICAN), Paris, 75013, France
| | - Bjorn T Adalsteinsson
- Department of Physiology Development and Neuroscience, Downing Street, University of Cambridge, Cambridge, United Kingdom
| | - Anne C Ferguson-Smith
- Department of Genetics, University of Cambridge, Downing Street, Cambridge, United Kingdom
| | - Giovanna Marazzi
- UMR S 1166 INSERM (Stem Cells and Regenerative Medicine Team), University of Pierre and Marie Curie Paris VI, Paris, 75634, France.
- Institute of Cardiometabolism and Nutrition (ICAN), Paris, 75013, France.
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unit 970, Paris Cardiovascular Research Center, Université René Descartes Paris, Paris, France.
| | - David A Sassoon
- UMR S 1166 INSERM (Stem Cells and Regenerative Medicine Team), University of Pierre and Marie Curie Paris VI, Paris, 75634, France.
- Institute of Cardiometabolism and Nutrition (ICAN), Paris, 75013, France.
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unit 970, Paris Cardiovascular Research Center, Université René Descartes Paris, Paris, France.
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