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Duque G, Feehan J, Tripodi N, Kondrikov D, Wijeratne T, Gimble J, Hill W, Apostolopoulos V. Differential responses to aging amongst the transcriptome and proteome of mesenchymal progenitor populations. Res Sq 2023:rs.3.rs-3755129. [PMID: 38168272 PMCID: PMC10760299 DOI: 10.21203/rs.3.rs-3755129/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
The biological aging of mesenchymal stem cells is proposed to contribute to the development of a range of musculoskeletal and systemic diseases associated with older adults, such as osteoporosis, sarcopenia, and frailty. Despite this, little is understood about the specific mechanisms which drive this stem cell exhaustion, with most studies evaluating indirect effects of other aging changes, such as DNA damage, senescence, and inflammaging. In this study, we assess the transcriptomic and proteomic changes in three different populations of mesenchymal progenitor cells from older (50-70 years) and younger (20-40 years) individuals to uncover potential mechanisms driving stem cell exhaustion in mesenchymal tissues. To do this, we harvested primary bone marrow mesenchymal stem and progenitor cells (MPCs), circulating osteoprogenitors (COP), and adipose-derived stem cells (ADSCs) from younger and older donors, with an equal number of samples from males and females. These samples underwent RNA sequencing and label-free proteomic analysis, comparing the younger samples to the older ones. There was a distinct transcriptomic phenotype associated with the pooled older stem cells, indicative of suppressed proliferation and differentiation; however, there was no consistent change in the proteome of the cells. Older MPCs had a distinct phenotype in both the transcriptome and proteome, again consistent with altered differentiation and proliferation, but also a pro-inflammatory immune shift in older adults. COP cells showed a strong transcriptomic shift to pro-inflammatory signaling but no consistent proteomic phenotype. Similarly, ADSCs displayed transcriptomic shift in physiologies associated with cell migration, adherence, and immune activation, but no consistent proteomic change with age. These results show that there are underlying transcriptomic changes with stem cell aging that likely contribute to a decline in tissue regeneration; however, contextual factors such as the microenvironment and general health status also have a strong role in this.
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Zhang T, Li J, Li X, Liu Y. Intermuscular adipose tissue in obesity and related disorders: cellular origins, biological characteristics and regulatory mechanisms. Front Endocrinol (Lausanne) 2023; 14:1280853. [PMID: 37920255 PMCID: PMC10619759 DOI: 10.3389/fendo.2023.1280853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 10/01/2023] [Indexed: 11/04/2023] Open
Abstract
Intermuscular adipose tissue (IMAT) is a unique adipose depot interspersed between muscle fibers (myofibers) or muscle groups. Numerous studies have shown that IMAT is strongly associated with insulin resistance and muscular dysfunction in people with metabolic disease, such as obesity and type 2 diabetes. Moreover, IMAT aggravates obesity-related muscle metabolism disorders via secretory factors. Interestingly, researchers have discovered that intermuscular brown adipocytes in rodent models provide new hope for obesity treatment by acting on energy dissipation, which inspired researchers to explore the underlying regulation of IMAT formation. However, the molecular and cellular properties and regulatory processes of IMAT remain debated. Previous studies have suggested that muscle-derived stem/progenitor cells and other adipose tissue progenitors contribute to the development of IMAT. Adipocytes within IMAT exhibit features that are similar to either white adipocytes or uncoupling protein 1 (UCP1)-positive brown adipocytes. Additionally, given the heterogeneity of skeletal muscle, which comprises myofibers, satellite cells, and resident mesenchymal progenitors, it is plausible that interplay between these cellular components actively participate in the regulation of intermuscular adipogenesis. In this context, we review recent studies associated with IMAT to offer insights into the cellular origins, biological properties, and regulatory mechanisms of IMAT. Our aim is to provide novel ideas for the therapeutic strategy of IMAT and the development of new drugs targeting IMAT-related metabolic diseases.
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Affiliation(s)
- Ting Zhang
- Center of Obesity and Metabolic Diseases, Department of General Surgery, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University & The Second Affiliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
- Center of Gastrointestinal and Minimally Invasive Surgery, Department of General Surgery, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University & The Second Affiliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
- Medical Research Center, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University & The Second Affiliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
| | - Jun Li
- Department of Orthopedics, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University & The Second Affiliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
| | - Xi Li
- Institute of Life Sciences, Chongqing Medical University, Chongqing, China
| | - Yanjun Liu
- Center of Obesity and Metabolic Diseases, Department of General Surgery, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University & The Second Affiliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
- Center of Gastrointestinal and Minimally Invasive Surgery, Department of General Surgery, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University & The Second Affiliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
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3
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Sheptulina AF, Antyukh KY, Kiselev AR, Mitkovskaya NP, Drapkina OM. Possible Mechanisms Linking Obesity, Steroidogenesis, and Skeletal Muscle Dysfunction. Life (Basel) 2023; 13:1415. [PMID: 37374197 DOI: 10.3390/life13061415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 06/12/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Increasing evidence suggests that skeletal muscles may play a role in the pathogenesis of obesity and associated conditions due to their impact on insulin resistance and systemic inflammation. Skeletal muscles, as well as adipose tissue, are largely recognized as endocrine organs, producing biologically active substances, such as myokines and adipokines. They may have either beneficial or harmful effects on the organism and its functions, acting through the endocrine, paracrine, and autocrine pathways. Moreover, the collocation of adipose tissue and skeletal muscles, i.e., the amount of intramuscular, intermuscular, and visceral adipose depots, may be of major importance for metabolic health. Traditionally, the generalized and progressive loss of skeletal muscle mass and strength or physical function, named sarcopenia, has been thought to be associated with age. That is why most recently published papers are focused on the investigation of the effect of obesity on skeletal muscle function in older adults. However, accumulated data indicate that sarcopenia may arise in individuals with obesity at any age, so it seems important to clarify the possible mechanisms linking obesity and skeletal muscle dysfunction regardless of age. Since steroids, namely, glucocorticoids (GCs) and sex steroids, have a major impact on the amount and function of both adipose tissue and skeletal muscles, and are involved in the pathogenesis of obesity, in this review, we will also discuss the role of steroids in the interaction of these two metabolically active tissues in the course of obesity.
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Affiliation(s)
- Anna F Sheptulina
- Department of Fundamental and Applied Aspects of Obesity, National Medical Research Center for Therapy and Preventive Medicine, 101990 Moscow, Russia
- Department of Therapy and Preventive Medicine, A.I. Evdokimov Moscow State University of Medicine and Dentistry, 127473 Moscow, Russia
| | - Karina Yu Antyukh
- Republican Scientific and Practical Center of Cardiology, 220036 Minsk, Belarus
| | - Anton R Kiselev
- National Medical Research Center for Therapy and Preventive Medicine, 101990 Moscow, Russia
| | - Natalia P Mitkovskaya
- Republican Scientific and Practical Center of Cardiology, 220036 Minsk, Belarus
- Department of Cardiology and Internal Diseases, Belarusian State Medical University, 220116 Minsk, Belarus
| | - Oxana M Drapkina
- Department of Fundamental and Applied Aspects of Obesity, National Medical Research Center for Therapy and Preventive Medicine, 101990 Moscow, Russia
- Department of Therapy and Preventive Medicine, A.I. Evdokimov Moscow State University of Medicine and Dentistry, 127473 Moscow, Russia
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4
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Fu C, Chin-Young B, Park G, Guzmán-Seda M, Laudier D, Han WM. WNT7A suppresses adipogenesis of skeletal muscle mesenchymal stem cells and fatty infiltration through the alternative Wnt-Rho-YAP/TAZ signaling axis. Stem Cell Reports 2023; 18:999-1014. [PMID: 37001514 PMCID: PMC10147829 DOI: 10.1016/j.stemcr.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 04/03/2023] Open
Abstract
Intramuscular fatty infiltration in muscle injuries and diseases, caused by aberrant adipogenesis of fibro-adipogenic progenitors, negatively impacts function. Intramuscular delivery of wingless-type MMTV integration site family 7a (WNT7A) offers a promising strategy to stimulate muscle regeneration, but its effects on adipogenic conversion of fibro-adipogenic progenitors remain unknown. Here, we show that WNT7A decreases adipogenesis of fibro-adipogenic progenitors (FAPs) by inducing nuclear localization of Yes-associated protein (YAP) through Rho in a β-CATENIN-independent manner and by promoting nuclear retention of YAP and transcriptional co-activator with PDZ-binding motif (TAZ) in differentiating FAPs. Furthermore, intramuscular injection of WNT7A in vivo effectively suppresses fatty infiltration in mice following glycerol-induced injury. Our results collectively suggest WNT7A as a potential protein-based therapeutic for diminishing adipogenesis of FAPs and intramuscular fatty infiltration in pathological muscle injuries or diseases.
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Affiliation(s)
- Chengcheng Fu
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Britney Chin-Young
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - GaYoung Park
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Mariana Guzmán-Seda
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Biomedical Engineering, Polytechnic University of Puerto Rico, San Juan, PR, USA
| | - Damien Laudier
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Woojin M Han
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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5
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Vargas‐Franco D, Kalra R, Draper I, Pacak CA, Asakura A, Kang PB. The Notch signaling pathway in skeletal muscle health and disease. Muscle Nerve 2022; 66:530-544. [PMID: 35968817 PMCID: PMC9804383 DOI: 10.1002/mus.27684] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 07/20/2022] [Accepted: 07/24/2022] [Indexed: 01/05/2023]
Abstract
The Notch signaling pathway is a key regulator of skeletal muscle development and regeneration. Over the past decade, the discoveries of three new muscle disease genes have added a new dimension to the relationship between the Notch signaling pathway and skeletal muscle: MEGF10, POGLUT1, and JAG2. We review the clinical syndromes associated with pathogenic variants in each of these genes, known molecular and cellular functions of their protein products with a particular focus on the Notch signaling pathway, and potential novel therapeutic targets that may emerge from further investigations of these diseases. The phenotypes associated with two of these genes, POGLUT1 and JAG2, clearly fall within the realm of muscular dystrophy, whereas the third, MEGF10, is associated with a congenital myopathy/muscular dystrophy overlap syndrome classically known as early-onset myopathy, areflexia, respiratory distress, and dysphagia. JAG2 is a canonical Notch ligand, POGLUT1 glycosylates the extracellular domain of Notch receptors, and MEGF10 interacts with the intracellular domain of NOTCH1. Additional genes and their encoded proteins relevant to muscle function and disease with links to the Notch signaling pathway include TRIM32, ATP2A1 (SERCA1), JAG1, PAX7, and NOTCH2NLC. There is enormous potential to identify convergent mechanisms of skeletal muscle disease and new therapeutic targets through further investigations of the Notch signaling pathway in the context of skeletal muscle development, maintenance, and disease.
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Affiliation(s)
| | - Raghav Kalra
- Division of Pediatric NeurologyUniversity of Florida College of MedicineGainesvilleFlorida
| | - Isabelle Draper
- Molecular Cardiology Research InstituteTufts Medical CenterBostonMassachusetts
| | - Christina A. Pacak
- Paul and Sheila Wellstone Muscular Dystrophy CenterUniversity of Minnesota Medical SchoolMinneapolisMinnesota
- Department of NeurologyUniversity of Minnesota Medical SchoolMinneapolisMinnesota
| | - Atsushi Asakura
- Paul and Sheila Wellstone Muscular Dystrophy CenterUniversity of Minnesota Medical SchoolMinneapolisMinnesota
- Department of NeurologyUniversity of Minnesota Medical SchoolMinneapolisMinnesota
| | - Peter B. Kang
- Paul and Sheila Wellstone Muscular Dystrophy CenterUniversity of Minnesota Medical SchoolMinneapolisMinnesota
- Department of NeurologyUniversity of Minnesota Medical SchoolMinneapolisMinnesota
- Institute for Translational NeuroscienceUniversity of Minnesota Medical SchoolMinneapolisMinnesota
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Stratos I, Behrendt AK, Anselm C, Gonzalez A, Mittlmeier T, Vollmar B. Inhibition of TNF-α Restores Muscle Force, Inhibits Inflammation, and Reduces Apoptosis of Traumatized Skeletal Muscles. Cells 2022; 11:cells11152397. [PMID: 35954240 PMCID: PMC9367740 DOI: 10.3390/cells11152397] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 07/31/2022] [Accepted: 08/02/2022] [Indexed: 02/06/2023] Open
Abstract
Background: Muscle injuries are common in humans and are often associated with irrecoverable damage and disability. Upon muscle injury, TNF-α signaling pathways modulate the healing process and are predominantly associated with tissue degradation. In this study we assumed that TNF-α inhibition could reduce the TNF-α-associated tissue degradation after muscle injury. Materials and methods: Therefore, the left soleus muscle of 42 male Wistar rats was injured using a standardized open muscle injury model. All rats were treated immediately after injury either with infliximab (single i.p. injection; 10 mg/kg b.w.) or saline solution i.p. Final measurements were conducted at day one, four, and 14 post injury. The muscle force, the muscle cell proliferation, the muscle cell coverage as well as the myofiber diameter served as read out parameters of our experiment. Results: Systemic application of infliximab could significantly reduce the TNF-α levels in the injured muscle at day four upon trauma compared to saline treated animals. The ratio of muscle weight to body weight was increased and the twitch muscle force showed a significant rise 14 days after trauma and TNF-α inhibition. Quantification of myofiber diameter in the penumbra zone showed a significant difference between both groups at day one and four after injury, indicated by muscle hypertrophy in the infliximab group. Planimetric analysis of the injured muscle at day 14 revealed increased muscle tissue fraction in the infliximab group compared to the control animals. Muscle cell proliferation did not differ between both groups. Conclusions: These data provide evidence that the TNF-α blockade positively regulates the restauration of skeletal muscles upon injury.
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Affiliation(s)
- Ioannis Stratos
- Department of Orthopaedic Surgery, Julius-Maximilians University Wuerzburg, 97074 Wuerzburg, Germany
- Department of Trauma, Hand and Reconstructive Surgery, University of Rostock, 18057 Rostock, Germany; (A.-K.B.); (A.G.); (T.M.)
- Correspondence:
| | - Ann-Kathrin Behrendt
- Department of Trauma, Hand and Reconstructive Surgery, University of Rostock, 18057 Rostock, Germany; (A.-K.B.); (A.G.); (T.M.)
- Institute for Experimental Surgery, University of Rostock, 18057 Rostock, Germany; (C.A.); (B.V.)
| | - Christian Anselm
- Institute for Experimental Surgery, University of Rostock, 18057 Rostock, Germany; (C.A.); (B.V.)
| | - Aldebarani Gonzalez
- Department of Trauma, Hand and Reconstructive Surgery, University of Rostock, 18057 Rostock, Germany; (A.-K.B.); (A.G.); (T.M.)
- Institute for Experimental Surgery, University of Rostock, 18057 Rostock, Germany; (C.A.); (B.V.)
| | - Thomas Mittlmeier
- Department of Trauma, Hand and Reconstructive Surgery, University of Rostock, 18057 Rostock, Germany; (A.-K.B.); (A.G.); (T.M.)
| | - Brigitte Vollmar
- Institute for Experimental Surgery, University of Rostock, 18057 Rostock, Germany; (C.A.); (B.V.)
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Zhang X, Habiballa L, Aversa Z, Ng YE, Sakamoto AE, Englund DA, Pearsall VM, White TA, Robinson MM, Rivas DA, Dasari S, Hruby AJ, Lagnado AB, Jachim SK, Granic A, Sayer AA, Jurk D, Lanza IR, Khosla S, Fielding RA, Nair KS, Schafer MJ, Passos JF, LeBrasseur NK. Characterization of cellular senescence in aging skeletal muscle. Nat Aging 2022; 2:601-15. [PMID: 36147777 DOI: 10.1038/s43587-022-00250-8] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Senescence is a cell fate that contributes to multiple aging-related pathologies. Despite profound age-associated changes in skeletal muscle (SkM), whether its constituent cells are prone to senesce has not been methodically examined. Herein, using single cell and bulk RNA-sequencing and complementary imaging methods on SkM of young and old mice, we demonstrate that a subpopulation of old fibroadipogenic progenitors highly expresses p16 Ink4a together with multiple senescence-related genes and, concomitantly, exhibits DNA damage and chromatin reorganization. Through analysis of isolated myofibers, we also detail a senescence phenotype within a subset of old cells, governed instead by p2 Cip1 . Administration of a senotherapeutic intervention to old mice countered age-related molecular and morphological changes and improved SkM strength. Finally, we found that the senescence phenotype is conserved in SkM from older humans. Collectively, our data provide compelling evidence for cellular senescence as a hallmark and potentially tractable mediator of SkM aging.
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Chung JS, Hwang S, Hong JE, Jo M, Rhee KJ, Kim S, Jung PY, Yoon Y, Kang SH, Ryu H, Kim MY, Bae KS, Eom YW. Skeletal muscle satellite cell-derived mesenchymal stem cells ameliorate acute alcohol-induced liver injury. Int J Med Sci 2022; 19:353-363. [PMID: 35165521 PMCID: PMC8795809 DOI: 10.7150/ijms.68971] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 01/05/2022] [Indexed: 12/03/2022] Open
Abstract
Cultured human skeletal-muscle satellite cells have properties of mesenchymal stem cells (skeletal muscle satellite cell-derived mesenchymal stem cells, SkMSCs) and play anti-inflammatory roles by secreting prostaglandin E2 and hepatocyte growth factor (HGF). To evaluate the utility of SkMSCs in treating liver diseases, we determined whether SkMSCs could ameliorate acute liver and gut inflammation induced by binge ethanol administration. Binge drinking of ethanol led to weight loss in the body and spleen, liver inflammation and steatosis, and increased serum ALT and AST levels (markers of liver injury), along with increased IL-1β, TNF-α, and iNOS expression levels in mice. However, levels of these binge-drinking-induced indicators were reduced by a single intraperitoneal treatment of SkMSCs. Furthermore, levels of bacteria-derived lipopolysaccharide decreased in the livers and sera of ethanol-exposed mice after SkMSC administration. SkMSCs decreased the extent of tissue inflammation and reduced villus and crypt lengths in the small intestine after alcohol binge drinking. SkMSCs also reduced the leakage of blood albumin, an indicator of leaky gut, in the stool of ethanol-exposed mice. Alcohol-induced damage to human colonic Caco-2/tc7 cells was also alleviated by HGF. Therefore, a single treatment with SkMSCs can attenuate alcoholic liver damage by reducing inflammatory responses in the liver and gut, suggesting that SkMSCs could be used in cell therapy to treat alcoholic liver diseases.
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Affiliation(s)
- Jae Sik Chung
- Department of Surgery, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Soonjae Hwang
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea.,Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, GAIHST, Gachon University College of Medicine, Incheon 21999, Republic of Korea
| | - Ju Eun Hong
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University MIRAE Campus, Wonju, Gangwon-do 26493, Republic of Korea
| | - Minjeong Jo
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University MIRAE Campus, Wonju, Gangwon-do 26493, Republic of Korea
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University MIRAE Campus, Wonju, Gangwon-do 26493, Republic of Korea
| | - Seongyup Kim
- Department of Surgery, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Pil Young Jung
- Department of Surgery, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Youngdae Yoon
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea.,Mitohormesis Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Seong Hee Kang
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea.,Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Hoon Ryu
- Department of Surgery, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Moon Young Kim
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea.,Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea.,Cell Therapy and Tissue Engineering Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Keum Seok Bae
- Department of Surgery, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Young Woo Eom
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea.,Cell Therapy and Tissue Engineering Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
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Rossin F, Avitabile E, Catarinella G, Fornetti E, Testa S, Oliverio S, Gargioli C, Cannata S, Latella L, Di Sano F. Reticulon-1C Involvement in Muscle Regeneration. Metabolites 2021; 11:metabo11120855. [PMID: 34940613 PMCID: PMC8708675 DOI: 10.3390/metabo11120855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/25/2021] [Accepted: 12/03/2021] [Indexed: 12/03/2022] Open
Abstract
Skeletal muscle is a very dynamic and plastic tissue, being essential for posture, locomotion and respiratory movement. Muscle atrophy or genetic muscle disorders, such as muscular dystrophies, are characterized by myofiber degeneration and replacement with fibrotic tissue. Recent studies suggest that changes in muscle metabolism such as mitochondrial dysfunction and dysregulation of intracellular Ca2+ homeostasis are implicated in many adverse conditions affecting skeletal muscle. Accumulating evidence also suggests that ER stress may play an important part in the pathogenesis of inflammatory myopathies and genetic muscle disorders. Among the different known proteins regulating ER structure and function, we focused on RTN-1C, a member of the reticulon proteins family localized on the ER membrane. We previously demonstrated that RTN-1C expression modulates cytosolic calcium concentration and ER stress pathway. Moreover, we recently reported a role for the reticulon protein in autophagy regulation. In this study, we found that muscle differentiation process positively correlates with RTN-1C expression and UPR pathway up-regulation during myogenesis. To better characterize the role of the reticulon protein alongside myogenic and muscle regenerative processes, we performed in vivo experiments using either a model of muscle injury or a photogenic model for Duchenne muscular dystrophy. The obtained results revealed RTN-1C up-regulation in mice undergoing active regeneration and localization in the injured myofibers. The presented results strongly suggested that RTN-1C, as a protein involved in key aspects of muscle metabolism, may represent a new target to promote muscle regeneration and repair upon injury.
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Affiliation(s)
- Federica Rossin
- Department of Biology, University of Rome ‘Tor Vergata’, 00133 Rome, Italy; (E.A.); (E.F.); (S.T.); (S.O.); (C.G.); (S.C.); (F.D.S.)
- Correspondence:
| | - Elena Avitabile
- Department of Biology, University of Rome ‘Tor Vergata’, 00133 Rome, Italy; (E.A.); (E.F.); (S.T.); (S.O.); (C.G.); (S.C.); (F.D.S.)
| | - Giorgia Catarinella
- Epigenetics and Regenerative Medicine, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy; (G.C.); (L.L.)
- DAHFMO, Unit of Histology and Medical Embryology, Sapienza University of Rome, 00185 Rome, Italy
| | - Ersilia Fornetti
- Department of Biology, University of Rome ‘Tor Vergata’, 00133 Rome, Italy; (E.A.); (E.F.); (S.T.); (S.O.); (C.G.); (S.C.); (F.D.S.)
| | - Stefano Testa
- Department of Biology, University of Rome ‘Tor Vergata’, 00133 Rome, Italy; (E.A.); (E.F.); (S.T.); (S.O.); (C.G.); (S.C.); (F.D.S.)
| | - Serafina Oliverio
- Department of Biology, University of Rome ‘Tor Vergata’, 00133 Rome, Italy; (E.A.); (E.F.); (S.T.); (S.O.); (C.G.); (S.C.); (F.D.S.)
| | - Cesare Gargioli
- Department of Biology, University of Rome ‘Tor Vergata’, 00133 Rome, Italy; (E.A.); (E.F.); (S.T.); (S.O.); (C.G.); (S.C.); (F.D.S.)
| | - Stefano Cannata
- Department of Biology, University of Rome ‘Tor Vergata’, 00133 Rome, Italy; (E.A.); (E.F.); (S.T.); (S.O.); (C.G.); (S.C.); (F.D.S.)
| | - Lucia Latella
- Epigenetics and Regenerative Medicine, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy; (G.C.); (L.L.)
- Institute of Translational Pharmacology, National Research Council of Italy, 00133 Rome, Italy
| | - Federica Di Sano
- Department of Biology, University of Rome ‘Tor Vergata’, 00133 Rome, Italy; (E.A.); (E.F.); (S.T.); (S.O.); (C.G.); (S.C.); (F.D.S.)
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10
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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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11
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Fu C, Huang AH, Galatz LM, Han WM. Cellular and molecular modulation of rotator cuff muscle pathophysiology. J Orthop Res 2021; 39:2310-2322. [PMID: 34553789 DOI: 10.1002/jor.25179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/04/2021] [Accepted: 09/07/2021] [Indexed: 02/04/2023]
Abstract
Rotator cuff (RC) tendon tears are common shoulder injuries that result in irreversible and persistent degeneration of the associated muscles, which is characterized by severe inflammation, atrophy, fibrosis, and fatty infiltration. Although RC muscle degeneration strongly dictates the overall clinical outcomes, strategies to stimulate RC muscle regeneration have largely been overlooked to date. In this review, we highlight the current understanding of the cellular processes that coordinate muscle regeneration, and the roles of muscle resident cells, including immune cells, fibroadipogenic progenitors, and muscle satellite cells in the pathophysiologic regulation of RC muscles following injury. This review also provides perspectives for potential therapies to alleviate the hallmarks of RC muscle degeneration to address current limitations in postsurgical recovery.
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Affiliation(s)
- Chengcheng Fu
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Alice H Huang
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York City, New York, USA.,Department of Orthopedic Surgery, Columbia University, New York City, New York, USA
| | - Leesa M Galatz
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Woojin M Han
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York City, New York, USA.,Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
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12
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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: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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13
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Tripodi L, Villa C, Molinaro D, Torrente Y, Farini A. The Immune System in Duchenne Muscular Dystrophy Pathogenesis. Biomedicines 2021; 9:1447. [PMID: 34680564 DOI: 10.3390/biomedicines9101447] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/28/2021] [Accepted: 10/04/2021] [Indexed: 12/24/2022] Open
Abstract
Growing evidence demonstrates the crosstalk between the immune system and the skeletal muscle in inflammatory muscle diseases and dystrophic conditions such as Duchenne Muscular Dystrophy (DMD), as well as during normal muscle regeneration. The rising of inflammation and the consequent activation of the immune system are hallmarks of DMD: several efforts identified the immune cells that invade skeletal muscle as CD4+ and CD8+ T cells, Tregs, macrophages, eosinophils and natural killer T cells. The severity of muscle injury and inflammation dictates the impairment of muscle regeneration and the successive replacement of myofibers with connective and adipose tissue. Since immune system activation was traditionally considered as a consequence of muscular wasting, we recently demonstrated a defect in central tolerance caused by thymus alteration and the presence of autoreactive T-lymphocytes in DMD. Although the study of innate and adaptive immune responses and their complex relationship in DMD attracted the interest of many researchers in the last years, the results are so far barely exhaustive and sometimes contradictory. In this review, we describe the most recent improvements in the knowledge of immune system involvement in DMD pathogenesis, leading to new opportunities from a clinical point-of-view.
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14
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Vumbaca S, Giuliani G, Fiorentini V, Tortolici F, Cerquone Perpetuini A, Riccio F, Sennato S, Gargioli C, Fuoco C, Castagnoli L, Cesareni G. Characterization of the Skeletal Muscle Secretome Reveals a Role for Extracellular Vesicles and IL1α/IL1β in Restricting Fibro/Adipogenic Progenitor Adipogenesis. Biomolecules 2021; 11:1171. [PMID: 34439837 DOI: 10.3390/biom11081171] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 08/01/2021] [Accepted: 08/05/2021] [Indexed: 12/31/2022] Open
Abstract
Repeated mechanical stress causes injuries in the adult skeletal muscle that need to be repaired. Although muscle regeneration is a highly efficient process, it fails in some pathological conditions, compromising tissue functionality. This may be caused by aberrant cell-cell communication, resulting in the deposition of fibrotic and adipose infiltrates. Here, we investigate in vivo changes in the profile of skeletal muscle secretome during the regeneration process to suggest new targetable regulatory circuits whose failure may lead to tissue degeneration in pathological conditions. We describe the kinetic variation of expression levels of 76 secreted proteins during the regeneration process. In addition, we profile the gene expression of immune cells, endothelial cells, satellite cells, and fibro-adipogenic progenitors. This analysis allowed us to annotate each cell-type with the cytokines and receptors they have the potential to synthetize, thus making it possible to draw a cell-cell interaction map. We next selected 12 cytokines whose receptors are expressed in FAPs and tested their ability to modulate FAP adipogenesis and proliferation. We observed that IL1α and IL1β potently inhibit FAP adipogenesis, while EGF and BTC notably promote FAP proliferation. In addition, we characterized the cross-talk mediated by extracellular vesicles (EVs). We first monitored the modulation of muscle EV cargo during tissue regeneration. Using a single-vesicle flow cytometry approach, we observed that EVs differentially affect the uptake of RNA and proteins into their lumen. We also investigated the EV capability to interact with SCs and FAPs and to modulate their proliferation and differentiation. We conclude that both cytokines and EVs secreted during muscle regeneration have the potential to modulate adipogenic differentiation of FAPs. The results of our approach provide a system-wide picture of mechanisms that control cell fate during the regeneration process in the muscle niche.
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15
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Wei X, Nicoletti C, Puri PL. Fibro-Adipogenic Progenitors: Versatile keepers of skeletal muscle homeostasis, beyond the response to myotrauma. Semin Cell Dev Biol 2021:S1084-9521(21)00200-7. [PMID: 34332886 DOI: 10.1016/j.semcdb.2021.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/12/2021] [Accepted: 07/17/2021] [Indexed: 10/20/2022]
Abstract
While Fibro-Adipogenic Progenitors (FAPs) have been originally identified as muscle-interstitial mesenchymal cells activated in response to muscle injury and endowed with inducible fibrogenic and adipogenic potential, subsequent studies have expanded their phenotypic and functional repertoire and revealed their contribution to skeletal muscle response to a vast range of perturbations. Here we review the emerging contribution of FAPs to skeletal muscle responses to motor neuron injuries and to systemic physiological (e.g., exercise) or pathological metabolic (e.g., diabetes) perturbations. We also provide an initial blueprint of discrete sub-clusters of FAPs that are activated by specific perturbations and discuss their role in muscle adaptation to these conditions.
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16
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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: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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17
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Ding H, Chen S, Pan X, Dai X, Pan G, Li Z, Mai X, Tian Y, Zhang S, Liu B, Cao G, Yao Z, Yao X, Gao L, Yang L, Chen X, Sun J, Chen H, Han M, Yin Y, Xu G, Li H, Wu W, Chen Z, Lin J, Xiang L, Hu J, Lu Y, Zhu X, Xie L. Transferrin receptor 1 ablation in satellite cells impedes skeletal muscle regeneration through activation of ferroptosis. J Cachexia Sarcopenia Muscle 2021; 12:746-768. [PMID: 33955709 PMCID: PMC8200440 DOI: 10.1002/jcsm.12700] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 02/18/2021] [Accepted: 03/16/2021] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Satellite cells (SCs) are critical to skeletal muscle regeneration. Inactivation of SCs is linked to skeletal muscle loss. Transferrin receptor 1 (Tfr1) is associated with muscular dysfunction as muscle-specific deletion of Tfr1 results in growth retardation, metabolic disorder, and lethality, shedding light on the importance of Tfr1 in muscle physiology. However, its physiological function regarding skeletal muscle ageing and regeneration remains unexplored. METHODS RNA sequencing is applied to skeletal muscles of different ages to identify Tfr1 associated to skeletal muscle ageing. Mice with conditional SC ablation of Tfr1 were generated. Between Tfr1SC/WT and Tfr1SC/KO (n = 6-8 mice per group), cardiotoxin was intramuscularly injected, and transverse abdominal muscle was dissected, weighted, and cryosectioned, followed by immunostaining, haematoxylin and eosin staining, and Masson staining. These phenotypical analyses were followed with functional analysis such as flow cytometry, tread mill, Prussian blue staining, and transmission electron microscopy to identify pathological pathways that contribute to regeneration defects. RESULTS By comparing gene expression between young (2 weeks old, n = 3) and aged (80 weeks old, n = 3) mice among four types of muscles, we identified that Tfr1 expression is declined in muscles of aged mice (~80% reduction, P < 0.005), so as to its protein level in SCs of aged mice. From in vivo and ex vivo experiments, Tfr1 deletion in SCs results in an irreversible depletion of SCs (~60% reduction, P < 0.005) and cell-autonomous defect in SC proliferation and differentiation, leading to skeletal muscle regeneration impairment, followed by labile iron accumulation, lipogenesis, and decreased Gpx4 and Nrf2 protein levels leading to reactive oxygen species scavenger defects. These abnormal phenomena including iron accumulation, activation of unsaturated fatty acid biosynthesis, and lipid peroxidation are orchestrated with the occurrence of ferroptosis in skeletal muscle. Ferroptosis further exacerbates SC proliferation and skeletal muscle regeneration. Ferrostatin-1, a ferroptosis inhibitor, could not rescue ferroptosis. However, intramuscular administration of lentivirus-expressing Tfr1 could partially reduce labile iron accumulation, decrease lipogenesis, and promote skeletal muscle regeneration. Most importantly, declined Tfr1 but increased Slc39a14 protein level on cellular membrane contributes to labile iron accumulation in skeletal muscle of aged rodents (~80 weeks old), leading to activation of ferroptosis in aged skeletal muscle. This is inhibited by ferrostatin-1 to improve running time (P = 0.0257) and distance (P = 0.0248). CONCLUSIONS Satellite cell-specific deletion of Tfr1 impairs skeletal muscle regeneration with activation of ferroptosis. This phenomenon is recapitulated in skeletal muscle of aged rodents and human sarcopenia. Our study provides mechanistic information for developing novel therapeutic strategies against muscular ageing and diseases.
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Affiliation(s)
- Hongrong Ding
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Guangdong Provincial Key Laboratory of Molecular Diagnosis, The Marine Biomedical Research InstituteGuangdong Medical UniversityZhanjiangChina
| | - Shujie Chen
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Xiaohan Pan
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Xiaoshuang Dai
- BGI Institute of Applied AgricultureBGI‐ShenzhenShenzhenChina
| | - Guihua Pan
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Ze Li
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Xudong Mai
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Ye Tian
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Susu Zhang
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Bingdong Liu
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Guangchao Cao
- The Biomedical Translational Research Institute, Faculty of Medical ScienceJinan UniversityGuangzhouChina
| | - Zhicheng Yao
- The Third Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina
| | - Xiangping Yao
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Liang Gao
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Li Yang
- The Third Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina
| | - Xiaoyan Chen
- The Third Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina
| | - Jia Sun
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Hong Chen
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Mulan Han
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Yulong Yin
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- China Institute of Subtropical AgricultureChinese Academy of SciencesChangshaHunanChina
| | - Guohuan Xu
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Huijun Li
- College of Public HealthXinxiang Medical UniversityXinxiangChina
| | - Weidong Wu
- College of Public HealthXinxiang Medical UniversityXinxiangChina
| | - Zheng Chen
- HIT Center for Life Sciences, School of Life Science and TechnologyHarbin Institute of TechnologyHarbinChina
| | - Jingchao Lin
- Metabo‐Profile Biotechnology (Shanghai) Co. Ltd.ShanghaiChina
| | - Liping Xiang
- Key Laboratory of Metabolism and Molecular Medicine, The Ministry of Education, Department of Endocrinology and MetabolismZhongshan Hospital, Fudan UniversityShanghaiChina
| | - Jun Hu
- Department of OrthopedicsThe First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsuChina
| | - Yan Lu
- Key Laboratory of Metabolism and Molecular Medicine, The Ministry of Education, Department of Endocrinology and MetabolismZhongshan Hospital, Fudan UniversityShanghaiChina
| | - Xiao Zhu
- Guangdong Provincial Key Laboratory of Molecular Diagnosis, The Marine Biomedical Research InstituteGuangdong Medical UniversityZhanjiangChina
| | - Liwei Xie
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
- College of Public HealthXinxiang Medical UniversityXinxiangChina
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18
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Parker E, Hamrick MW. Role of fibro-adipogenic progenitor cells in muscle atrophy and musculoskeletal diseases. Curr Opin Pharmacol 2021; 58:1-7. [PMID: 33839480 DOI: 10.1016/j.coph.2021.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/16/2021] [Accepted: 03/06/2021] [Indexed: 01/01/2023]
Abstract
Maintaining muscle mass is clinically important as muscle helps to regulate metabolic systems of the body as well as support activities of daily living that require mobility, strength, and power. Losing muscle mass decreases an individual's independence and quality of life, and at the same time increases the risk of disease burden. Fibro-adipogenic progenitor (FAP) cells are a group of muscle progenitor cells that play an important role in muscle regeneration and maintenance of skeletal muscle fiber size. These important functions of FAPs are mediated by a complex secretome that interacts in a paracrine manner to stimulate muscle satellite cells to divide and differentiate. Dysregulation of FAP differentiation leads to fibrosis, fatty infiltration, muscle atrophy, and impaired muscle regeneration. Functional deficits in skeletal muscle resulting from atrophy, fibrosis, or fatty infiltration will reduce biomechanical stresses on the skeleton, and both FAP-derived adipocytes and FAPs themselves are likely to secrete factors that can induce bone loss. These findings suggest that FAPs represent a cell population to be targeted therapeutically to improve both muscle and bone health in settings of aging, injury, and disease.
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Affiliation(s)
- Emily Parker
- Medical College of Georgia, Augusta University, Augusta, GA, 30912, USA
| | - Mark W Hamrick
- Medical College of Georgia, Augusta University, Augusta, GA, 30912, USA.
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19
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Petrilli LL, Riccio F, Giuliani G, Palma A, Gargioli C, Vumbaca S, Faron M, Palmieri G, Pasquini L, Sacco F, Cesareni G, Castagnoli L, Fuoco C. Skeletal Muscle Subpopulation Rearrangements upon Rhabdomyosarcoma Development through Single-Cell Mass Cytometry. J Clin Med 2021; 10:823. [PMID: 33671425 DOI: 10.3390/jcm10040823] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/08/2021] [Accepted: 02/15/2021] [Indexed: 11/16/2022] Open
Abstract
The embryonal rhabdomyosarcoma (eRMS) is a soft tissue sarcoma commonly affecting the head and neck, the extremities and the genitourinary tract. To contribute to revealing the cell types that may originate this tumor, we exploited mass cytometry, a single-cell technique that, by using heavy-metal-tagged antibodies, allows the accurate monitoring of the changes occurring in the mononuclear cell composition of skeletal muscle tissue during tumor development. To this end, we compared cell populations of healthy muscles with those from spatiotemporal-induced eRMS tumors in a mouse model (LSL-KrasG12D/+;Tp53Fl/Fl) that can be used to develop rhabdomyosarcoma by means of infection with an adenovirus vector expressing Cre (Ad-Cre) recombinase. By monitoring different time points after tumor induction, we were able to analyze tumor progression and composition, identifying fibro/adipogenic progenitors (FAPs) as the cell type that, in this model system, had a pivotal role in tumor development. In vitro studies highlighted that both FAPs and satellite cells (SCs), upon infection with the Ad-Cre, acquired the potential to develop rhabdomyosarcomas when transplanted into immunocompromised mice. However, only infected FAPs had an antigen profile that was similar to embryonal rhabdomyosarcoma cells. Overall, our analysis supports the involvement of FAPs in eRMS development.
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20
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Giuliani G, Vumbaca S, Fuoco C, Gargioli C, Giorda E, Massacci G, Palma A, Reggio A, Riccio F, Rosina M, Vinci M, Castagnoli L, Cesareni G. SCA-1 micro-heterogeneity in the fate decision of dystrophic fibro/adipogenic progenitors. Cell Death Dis 2021; 12:122. [PMID: 33495447 PMCID: PMC7835386 DOI: 10.1038/s41419-021-03408-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 01/04/2021] [Accepted: 01/07/2021] [Indexed: 12/12/2022]
Abstract
The term micro-heterogeneity refers to non-genetic cell to cell variability observed in a bell-shaped distribution of the expression of a trait within a population. The contribution of micro-heterogeneity to physiology and pathology remains largely uncharacterised. To address such an issue, we investigated the impact of heterogeneity in skeletal muscle fibro/adipogenic progenitors (FAPs) isolated from an animal model of Duchenne muscular dystrophy (DMD), the mdx mouse. FAPs play an essential role in muscle homoeostasis. However, in pathological conditions or ageing, they are the source of intramuscular infiltrations of fibrotic or adipose tissue. By applying a multiplex flow cytometry assay, we characterised and purified from mdx muscles two FAP cell states expressing different levels of SCA-1. The two cell states are morphologically identical and repopulate each other after several growth cycles. However, they differ in their in vitro behaviour. Cells expressing higher levels of SCA-1 (SCA1-High-FAPs) differentiate more readily into adipocytes while, when exposed to a fibrogenic stimulation, increase the expression of Col1a1 and Timp1 mRNA. A transcriptomic analysis confirmed the adipogenic propensity of SCA1-High-FAPs. In addition, SCA1-High-FAPs proliferate more extensively ex vivo and display more proliferating cells in dystrophic muscles in comparison to SCA1-Low-FAPs. Adipogenesis of both FAP cell states is inhibited in vitro by leucocytes from young dystrophic mice, while leucocytes isolated from aged dystrophic mice are less effective in limiting the adipogenesis of SCA1-High-FAPs suggesting a differential regulatory effect of the microenvironment on micro-heterogeneity. Our data suggest that FAP micro-heterogeneity is modulated in pathological conditions and that this heterogeneity in turn may impact on the behaviour of interstitial mesenchymal cells in genetic diseases.
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Affiliation(s)
- Giulio Giuliani
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy.
| | - Simone Vumbaca
- 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
| | - Ezio Giorda
- Core Facilities, Bambino Gesù Children's Hospital - IRCCS, Rome, Italy
| | - Giorgia Massacci
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Alessandro Palma
- 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
| | - Marco Rosina
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Maria Vinci
- Department of Onco-haematology, Cell and Gene Therapy, Bambino Gesù Children's Hospital - IRCCS, 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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21
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Rugowska A, Starosta A, Konieczny P. Epigenetic modifications in muscle regeneration and progression of Duchenne muscular dystrophy. Clin Epigenetics 2021; 13:13. [PMID: 33468200 PMCID: PMC7814631 DOI: 10.1186/s13148-021-01001-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/14/2020] [Indexed: 02/08/2023] Open
Abstract
Duchenne muscular dystrophy (DMD) is a multisystemic disorder that affects 1:5000 boys. The severity of the phenotype varies dependent on the mutation site in the DMD gene and the resultant dystrophin expression profile. In skeletal muscle, dystrophin loss is associated with the disintegration of myofibers and their ineffective regeneration due to defective expansion and differentiation of the muscle stem cell pool. Some of these phenotypic alterations stem from the dystrophin absence-mediated serine-threonine protein kinase 2 (MARK2) misplacement/downregulation in activated muscle stem (satellite) cells and neuronal nitric oxide synthase loss in cells committed to myogenesis. Here, we trace changes in DNA methylation, histone modifications, and expression of regulatory noncoding RNAs during muscle regeneration, from the stage of satellite cells to myofibers. Furthermore, we describe the abrogation of these epigenetic regulatory processes due to changes in signal transduction in DMD and point to therapeutic treatments increasing the regenerative potential of diseased muscles based on this acquired knowledge.
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Affiliation(s)
- Anna Rugowska
- Institute of Human Biology and Evolution, Faculty of Biology, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614, Poznan, Poland
| | - Alicja Starosta
- Institute of Human Biology and Evolution, Faculty of Biology, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614, Poznan, Poland
| | - Patryk Konieczny
- Institute of Human Biology and Evolution, Faculty of Biology, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614, Poznan, Poland.
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22
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Anguiano T, Sahu A, Qian B, Tang WY, Ambrosio F, Barchowsky A. Arsenic Directs Stem Cell Fate by Imparting Notch Signaling Into the Extracellular Matrix Niche. Toxicol Sci 2020; 177:494-505. [PMID: 32647881 DOI: 10.1093/toxsci/kfaa106] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Compromise of skeletal muscle metabolism and composition may underlie the etiology of cardiovascular and metabolic disease risk from environmental arsenic exposures. We reported that arsenic impairs muscle maintenance and regeneration by inducing maladaptive mitochondrial phenotypes in muscle stem cells (MuSC), connective tissue fibroblasts (CTF), and myofibers. We also found that arsenic imparts a dysfunctional memory in the extracellular matrix (ECM) that disrupts the MuSC niche and is sufficient to favor the expansion and differentiation of fibrogenic MuSC subpopulations. To investigate the signaling mechanisms involved in imparting a dysfunctional ECM, we isolated skeletal muscle tissue and CTF from mice exposed to 0 or 100 μg/l arsenic in their drinking water for 5 weeks. ECM elaborated by arsenic-exposed CTF decreased myogenesis and increased fibrogenic/adipogenic MuSC subpopulations and differentiation. However, treating arsenic-exposed mice with SS-31, a mitochondrially targeted peptide that repairs the respiratory chain, reversed the arsenic-promoted CTF phenotype to one that elaborated an ECM supporting normal myogenic differentiation. SS-31 treatment also reversed arsenic-induced Notch1 expression, resulting in an improved muscle regeneration after injury. We found that persistent arsenic-induced CTF Notch1 expression caused the elaboration of dysfunctional ECM with increased expression of the Notch ligand DLL4. This DLL4 in the ECM was responsible for misdirecting MuSC myogenic differentiation. These data indicate that arsenic impairs muscle maintenance and regenerative capacity by targeting CTF mitochondria and mitochondrially directed expression of dysfunctional regulators in the stem cell niche. Therapies that restore muscle cell mitochondria may effectively treat arsenic-induced skeletal muscle dysfunction and compositional decline.
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Affiliation(s)
| | - Amrita Sahu
- Department of Physical Medicine and Rehabilitation
| | - Baoli Qian
- Department of Environmental and Occupational Health
| | - Wan-Yee Tang
- Department of Environmental and Occupational Health
| | - Fabrisia Ambrosio
- Department of Environmental and Occupational Health.,Department of Physical Medicine and Rehabilitation.,McGowan Institute for Regenerative Medicine.,Department of Bioengineering
| | - Aaron Barchowsky
- Department of Environmental and Occupational Health.,Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania 15261
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23
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Zhao L, Son JS, Wang B, Tian Q, Chen Y, Liu X, de Avila JM, Zhu MJ, Du M. Retinoic acid signalling in fibro/adipogenic progenitors robustly enhances muscle regeneration. EBioMedicine 2020; 60:103020. [PMID: 32980698 PMCID: PMC7519288 DOI: 10.1016/j.ebiom.2020.103020] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 09/04/2020] [Accepted: 09/09/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND During muscle regeneration, excessive formation of adipogenic and fibrogenic tissues, from their respective fibro/adipogenic progenitors (FAPs), impairs functional recovery. Intrinsic mechanisms controlling the proliferation and differentiation of FAPs remain largely unexplored. METHODS Here, we investigated the role of retinoic acid (RA) signalling in regulating FAPs and the subsequent effects on muscle restoration from a cardiotoxin-induced injury. Blockage of retinoic acid receptor (RAR) signalling was achieved through dominant negative retinoic acid receptor α (RARα403) expression specific in PDGFRα+ FAPs in vivo and by BMS493 treatment in vitro. Effects of RAR-signalling on FAP cellularity and muscle regeneration were also investigated in a high-fat diet-induced obese mice model. FINDINGS Supplementation of RA increased the proliferation of FAPs during the early stages of regeneration while suppressing FAP differentiation and promoting apoptosis during the remodelling stage. Loss of RAR-signalling caused ectopic adipogenic differentiation of FAPs and impaired muscle regeneration. Furthermore, obesity disrupted the cellular transition of FAPs and attenuated muscle regeneration. Supplementation of RA to obese mice not only rescued impaired muscle fibre regeneration, but also inhibited infiltration of fat and fibrotic tissues during muscle repair. These beneficial effects were abolished after blocking RAR-signalling in FAPs of obese mice. INTERPRETATION These data suggest that RAR-signalling in FAPs is a critical therapeutic target for suppressing differentiation of FAPs and facilitating the regeneration of muscle and other tissues. FUNDING This study was supported by grants from the National Institutes of Health (R01-HD067449 and R21-AG049976) to M.D.
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Affiliation(s)
- Liang Zhao
- Nutrigenomics and Growth Biology Laboratory, Department of Animal Sciences, and School of Molecular Bioscience, Washington State University, Pullman, WA
| | - Jun Seok Son
- Nutrigenomics and Growth Biology Laboratory, Department of Animal Sciences, and School of Molecular Bioscience, Washington State University, Pullman, WA
| | - Bo Wang
- State key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China, 100193
| | - Qiyu Tian
- Nutrigenomics and Growth Biology Laboratory, Department of Animal Sciences, and School of Molecular Bioscience, Washington State University, Pullman, WA
| | - Yanting Chen
- Nutrigenomics and Growth Biology Laboratory, Department of Animal Sciences, and School of Molecular Bioscience, Washington State University, Pullman, WA
| | - Xiangdong Liu
- Nutrigenomics and Growth Biology Laboratory, Department of Animal Sciences, and School of Molecular Bioscience, Washington State University, Pullman, WA
| | - Jeanene M de Avila
- Nutrigenomics and Growth Biology Laboratory, Department of Animal Sciences, and School of Molecular Bioscience, Washington State University, Pullman, WA
| | - Mei-Jun Zhu
- School of Food Science, Washington State University, Pullman, WA
| | - Min Du
- Nutrigenomics and Growth Biology Laboratory, Department of Animal Sciences, and School of Molecular Bioscience, Washington State University, Pullman, WA.
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Petrilli LL, Spada F, Palma A, Reggio A, Rosina M, Gargioli C, Castagnoli L, Fuoco C, Cesareni G. High-Dimensional Single-Cell Quantitative Profiling of Skeletal Muscle Cell Population Dynamics during Regeneration. Cells 2020; 9:E1723. [PMID: 32708412 DOI: 10.3390/cells9071723] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/03/2020] [Accepted: 07/14/2020] [Indexed: 12/15/2022] Open
Abstract
The interstitial space surrounding the skeletal muscle fibers is populated by a variety of mononuclear cell types. Upon acute or chronic insult, these cell populations become activated and initiate finely-orchestrated crosstalk that promotes myofiber repair and regeneration. Mass cytometry is a powerful and highly multiplexed technique for profiling single-cells. Herein, it was used to dissect the dynamics of cell populations in the skeletal muscle in physiological and pathological conditions. Here, we characterized an antibody panel that could be used to identify most of the cell populations in the muscle interstitial space. By exploiting the mass cytometry resolution, we provided a comprehensive picture of the dynamics of the major cell populations that sensed and responded to acute damage in wild type mice and in a mouse model of Duchenne muscular dystrophy. In addition, we revealed the intrinsic heterogeneity of many of these cell populations.
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25
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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26
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Reggio A, Rosina M, Palma A, Cerquone Perpetuini A, Petrilli LL, Gargioli C, Fuoco C, Micarelli E, Giuliani G, Cerretani M, Bresciani A, Sacco F, Castagnoli L, Cesareni G. Adipogenesis of skeletal muscle fibro/adipogenic progenitors is affected by the WNT5a/GSK3/β-catenin axis. Cell Death Differ 2020; 27:2921-41. [PMID: 32382110 DOI: 10.1038/s41418-020-0551-y] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 04/23/2020] [Accepted: 04/24/2020] [Indexed: 12/31/2022] Open
Abstract
Fibro/Adipogenic Progenitors (FAPs) are muscle-interstitial progenitors mediating pro-myogenic signals that are critical for muscle homeostasis and regeneration. In myopathies, the autocrine/paracrine constraints controlling FAP adipogenesis are released causing fat infiltrates. Here, by combining pharmacological screening, high-dimensional mass cytometry and in silico network modeling with the integration of single-cell/bulk RNA sequencing data, we highlighted the canonical WNT/GSK/β-catenin signaling as a crucial pathway modulating FAP adipogenesis triggered by insulin signaling. Consistently, pharmacological blockade of GSK3, by the LY2090314 inhibitor, stabilizes β-catenin and represses PPARγ expression abrogating FAP adipogenesis ex vivo while limiting fatty degeneration in vivo. Furthermore, GSK3 inhibition improves the FAP pro-myogenic role by efficiently stimulating, via follistatin secretion, muscle satellite cell (MuSC) differentiation into mature myotubes. Combining, publicly available single-cell RNAseq datasets, we characterize FAPs as the main source of WNT ligands inferring their potential in mediating autocrine/paracrine responses in the muscle niche. Lastly, we identify WNT5a, whose expression is impaired in dystrophic FAPs, as a crucial WNT ligand able to restrain the detrimental adipogenic differentiation drift of these cells through the positive modulation of the β-catenin signaling.
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27
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Nwadozi E, Rudnicki M, De Ciantis M, Milkovich S, Pulbere A, Roudier E, Birot O, Gustafsson T, Ellis CG, Haas TL. High-fat diet pre-conditioning improves microvascular remodelling during regeneration of ischaemic mouse skeletal muscle. Acta Physiol (Oxf) 2020; 229:e13449. [PMID: 32012450 DOI: 10.1111/apha.13449] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/26/2020] [Accepted: 01/28/2020] [Indexed: 12/25/2022]
Abstract
AIM Critical limb ischaemia (CLI) is characterized by inadequate angiogenesis, arteriolar remodelling and chronic myopathy, which are most severe in type 2 diabetic patients. Hypertriglyceridaemia, commonly observed in these patients, compromises macrovascular function. However, the effects of high-fat diet-induced increases in circulating lipids on microvascular remodelling are not established. Here, we investigated if high-fat diet would mimic the detrimental effect of type 2 diabetes on post-ischaemia vascular remodelling and muscle regeneration, using a mouse model of hindlimb ischaemia. METHODS Male C57Bl6/J mice were fed with normal or high-fat diets for 8 weeks prior to unilateral femoral artery ligation. Laser doppler imaging was used to assess limb perfusion recovery. Vascular recovery, inflammation, myofibre regeneration and fibrosis were assessed at 4 or 14 days post-ligation by histology and RNA analyses. Capillary-level haemodynamics were assessed by intravital microscopy of control and regenerating muscles 14 days post-ligation. RESULTS High-fat diet increased muscle succinate dehydrogenase activity and capillary-level oxygen supply. At 4 days post-ligation, no diet differences were detected in muscle damage, inflammatory infiltration or capillary activation. At 14 days post-ligation, high fat-fed mice displayed accelerated limb blood flow recovery, elevated capillary and arteriole densities as well as greater red blood cell supply rates and capillary-level oxygen supply. Regenerating muscles from high fat-fed mice displayed lower interstitial fat and collagen deposition. CONCLUSION The muscle-level adaptations to high-fat diet improved multiple aspects of muscle recovery in response to ischaemia and did not recapitulate the worse outcomes seen in diabetic CLI patients.
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Affiliation(s)
- Emmanuel Nwadozi
- School of Kinesiology and Health Science Muscle Health Research Centre Angiogenesis Research Group York University Toronto ON Canada
| | - Martina Rudnicki
- School of Kinesiology and Health Science Muscle Health Research Centre Angiogenesis Research Group York University Toronto ON Canada
| | - Matthew De Ciantis
- School of Kinesiology and Health Science Muscle Health Research Centre Angiogenesis Research Group York University Toronto ON Canada
| | - Stephanie Milkovich
- Department of Medical Biophysics University of Western Ontario London ON Canada
| | - Alexandru Pulbere
- School of Kinesiology and Health Science Muscle Health Research Centre Angiogenesis Research Group York University Toronto ON Canada
| | - Emilie Roudier
- School of Kinesiology and Health Science Muscle Health Research Centre Angiogenesis Research Group York University Toronto ON Canada
| | - Olivier Birot
- School of Kinesiology and Health Science Muscle Health Research Centre Angiogenesis Research Group York University Toronto ON Canada
| | - Thomas Gustafsson
- Division of Clinical Physiology Department of Laboratory Medicine Karolinska Institutet Stockholm Sweden
- Unit of Clinical Physiology Karolinska University Hospital Stockholm Sweden
| | | | - Tara L. Haas
- School of Kinesiology and Health Science Muscle Health Research Centre Angiogenesis Research Group York University Toronto ON Canada
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28
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Čamernik K, Mihelič A, Mihalič R, Haring G, Herman S, Marolt Presen D, Janež A, Trebše R, Marc J, Zupan J. Comprehensive analysis of skeletal muscle- and bone-derived mesenchymal stem/stromal cells in patients with osteoarthritis and femoral neck fracture. Stem Cell Res Ther 2020; 11:146. [PMID: 32245507 PMCID: PMC7118858 DOI: 10.1186/s13287-020-01657-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/24/2020] [Accepted: 03/18/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Mesenchymal stem/stromal cells (MSCs) can replenish the aged cells of the musculoskeletal system in adult life. Stem cell exhaustion and decrease in their regenerative potential have been suggested to be hallmarks of aging. Here, we investigated whether muscle- and bone-derived MSCs of patients with osteoarthritis and osteoporosis are affected by this exhaustion, compared to healthy donors. METHODS Patients with primary osteoarthritis, femoral neck fractures due to osteoporosis, and healthy donors (controls) were included. MSCs were isolated from the skeletal muscle and subchondral bone from each patient and compared using ex vivo and in vitro analyses, including immunophenotyping, colony-forming unit fibroblast assays, growth kinetics, cell senescence, multilineage potential, and MSC marker gene expression profiling. RESULTS Freshly isolated cells from muscle from patients with osteoarthritis showed a lower proportion of CD45/CD19/CD14/CD34-negative cells compared to patients with osteoporosis and healthy donors. Freshly isolated muscle cells from patients with osteoarthritis and osteoporosis also showed higher clonogenicity compared to healthy donors. MSCs from both tissues of osteoarthritis patients showed significantly reduced osteogenesis and MSCs from the bone also reduced adipogenesis. Chondrogenic pellet diameter was reduced in bone-derived MSCs from both patient groups compared to healthy donors. A significant positive correlation was observed between adipogenesis and CD271 expression in muscle-derived MSCs. CD73 was significantly lower in bone-derived MSCs from osteoarthritis patients, compared to osteoporosis patients. Gene expression profiling showed significantly lower expression of MSC marker gene leptin receptor, LEPR, previously identified as the major source of the bone and adipocytes in the adult bone marrow, in bone-derived MSCs from patients with osteoarthritis in comparison with osteoporotic patients and healthy donors. CONCLUSIONS Our results show deficient ex vivo and in vitro properties of both skeletal muscle- and bone-derived MSCs in osteoarthritis and osteoporosis patients, compared to healthy donors. In bone-derived MSCs from patients with osteoarthritis, we also identified a lower expression of the leptin receptor, a marker of MSCs that present a major source of MSCs in the adult bone marrow. This suggests that exhaustion of skeletal muscle- and bone-derived MSCs is a hallmark of osteoarthritis and osteoporosis, which defines the need for further clinical trials of stem cell transplantation in these patients.
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Affiliation(s)
- Klemen Čamernik
- University of Ljubljana, Faculty of Pharmacy, Chair of Clinical Biochemistry, Askerceva 7, 1000, Ljubljana, Slovenia
| | - Anže Mihelič
- Valdoltra Orthopaedic Hospital, Jadranska 31, SI-6280, Ankaran, Slovenia
| | - Rene Mihalič
- Valdoltra Orthopaedic Hospital, Jadranska 31, SI-6280, Ankaran, Slovenia
| | - Gregor Haring
- University of Ljubljana, Faculty of Medicine, Institute of Forensic Medicine, Korytkova 2, 1000, Ljubljana, Slovenia
| | - Simon Herman
- Clinical Department of Traumatology, University Medical Centre, Zaloska cesta 7, 1000, Ljubljana, Slovenia
| | - Darja Marolt Presen
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Center, Austrian Cluster for Tissue Regeneration, Donaueschingenstrasse 13, A-1200, Vienna, Austria
| | - Andrej Janež
- Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Centre, Zaloska cesta 2, 1000, Ljubljana, Slovenia
| | - Rihard Trebše
- Valdoltra Orthopaedic Hospital, Jadranska 31, SI-6280, Ankaran, Slovenia
| | - Janja Marc
- University of Ljubljana, Faculty of Pharmacy, Chair of Clinical Biochemistry, Askerceva 7, 1000, Ljubljana, Slovenia
| | - Janja Zupan
- University of Ljubljana, Faculty of Pharmacy, Chair of Clinical Biochemistry, Askerceva 7, 1000, Ljubljana, Slovenia.
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29
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Reggio A, Rosina M, Krahmer N, Palma A, Petrilli LL, Maiolatesi G, Massacci G, Salvatori I, Valle C, Testa S, Gargioli C, Fuoco C, Castagnoli L, Cesareni G, Sacco F. Metabolic reprogramming of fibro/adipogenic progenitors facilitates muscle regeneration. Life Sci Alliance 2020; 3:3/3/e202000646. [PMID: 32019766 PMCID: PMC7003708 DOI: 10.26508/lsa.202000660] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 01/28/2020] [Indexed: 12/25/2022] Open
Abstract
High-fat diet ameliorates muscle dystrophic phenotype by promoting the FAP-dependent myogenesis of satellite cells. In Duchenne muscular dystrophy (DMD), the absence of the dystrophin protein causes a variety of poorly understood secondary effects. Notably, muscle fibers of dystrophic individuals are characterized by mitochondrial dysfunctions, as revealed by a reduced ATP production rate and by defective oxidative phosphorylation. Here, we show that in a mouse model of DMD (mdx), fibro/adipogenic progenitors (FAPs) are characterized by a dysfunctional mitochondrial metabolism which correlates with increased adipogenic potential. Using high-sensitivity mass spectrometry–based proteomics, we report that a short-term high-fat diet (HFD) reprograms dystrophic FAP metabolism in vivo. By combining our proteomic dataset with a literature-derived signaling network, we revealed that HFD modulates the β-catenin–follistatin axis. These changes are accompanied by significant amelioration of the histological phenotype in dystrophic mice. Transplantation of purified FAPs from HFD-fed mice into the muscles of dystrophic recipients demonstrates that modulation of FAP metabolism can be functional to ameliorate the dystrophic phenotype. Our study supports metabolic reprogramming of muscle interstitial progenitor cells as a novel approach to alleviate some of the adverse outcomes of DMD.
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Affiliation(s)
- Alessio Reggio
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Marco Rosina
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Natalie Krahmer
- Department Proteomics and Signal Transduction, Max-Planck Institute of Biochemistry, Martinsried, Germany
| | - Alessandro Palma
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | | | | | - Giorgia Massacci
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Illari Salvatori
- Fondazione Santa Lucia Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Cristiana Valle
- Fondazione Santa Lucia Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy.,Institute of Translational Pharmacology, Consiglio Nazionale delle Ricerche (CNR), Rome, Italy
| | - Stefano Testa
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Cesare Gargioli
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Claudia Fuoco
- 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
| | - Francesca Sacco
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
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30
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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: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 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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31
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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] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 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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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] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [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. We are focused in the study of the mesenchymal progenitors in skeletal muscle. We study whether muscle CT fibroblasts are similar to fibro/adipogenic progenitors. Here we report a pre-plating strategy for the isolation and culture of an enriched population of FAPs-like adherent cells. Adherent fibroblasts respond in the same fashion to TGF-β signaling and the tyrosine kinase inhibitor Nilotinib as FAPs. In vitro pre-plating strategy allows the isolation and culture of CT fibroblasts, 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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Contreras O, Cruz-Soca M, Theret M, Soliman H, Tung LW, Groppa E, Rossi FM, Brandan E. The cross-talk between TGF-β and PDGFRα signaling pathways regulates stromal fibro/adipogenic progenitors’ fate. J Cell Sci 2019; 132:jcs.232157. [DOI: 10.1242/jcs.232157] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 08/12/2019] [Indexed: 12/15/2022] Open
Abstract
Fibro/adipogenic progenitors (FAPs) are tissue-resident mesenchymal stromal cells (MSCs) required for proper skeletal muscle development, regeneration, and maintenance. However, FAPs are also responsible for fibro-fatty scar deposition following chronic damage. We aimed to study a functional cross-talk between TGF-β and PDGFRα signaling pathways in FAPs’ fate. Here, we show that the number of FAPs correlates with TGF-β levels and with extracellular matrix deposition during regeneration and repair. Interestingly, the expression of PDGFRα changed dynamically in the stromal/fibroblast lineage after injury. Furthermore, PDGFRα-dependent immediate early gene expression changed during regeneration and repair. We also found that TGF-β signaling reduces PDGFRα expression in FAPs, mouse dermal fibroblasts, and in two related mesenchymal/fibroblast cell lines. Moreover, TGF-β promotes myofibroblast differentiation of FAPs but inhibits their adipogenicity. Accordingly, TGF-β impairs the expression of PDGFRα-dependent immediate early genes in a TGF-BR1-dependent manner. Finally, pharmacological inhibition of PDGFRα activity with AG1296 impaired TGF-β-induced extracellular matrix remodeling, Smad2 signaling, myofibroblast differentiation, and migration of MSCs. Thus, our work establishes a functional cross-talk between TGF-β and PDGFRα signaling pathways that is involved in regulating the biology of FAPs/MSCs.
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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, University of British Columbia, Vancouver, BC, Canada
| | - Meilyn Cruz-Soca
- 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
| | - Marine Theret
- Biomedical Research Centre, Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada
| | - Hesham Soliman
- Biomedical Research Centre, Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada
- Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Lin Wei Tung
- Biomedical Research Centre, Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada
| | - Elena Groppa
- Biomedical Research Centre, Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada
| | - Fabio M. Rossi
- Biomedical Research Centre, Department of Medical Genetics, 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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