1
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Pejšková L, Rønning SB, Kent MP, Solberg NT, Høst V, Thu-Hien T, Wold JP, Lunde M, Mosleth E, Pisconti A, Kolset SO, Carlson CR, Pedersen ME. Characterization of wooden breast myopathy: a focus on syndecans and ECM remodeling. Front Physiol 2023; 14:1301804. [PMID: 38130476 PMCID: PMC10737271 DOI: 10.3389/fphys.2023.1301804] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 11/06/2023] [Indexed: 12/23/2023] Open
Abstract
Introduction: The skeletal muscle deformity of commercial chickens (Gallus gallus), known as the wooden breast (WB), is associated with fibrotic myopathy of unknown etiology. For future breeding strategies and genetic improvements, it is essential to identify the molecular mechanisms underlying the phenotype. The pathophysiological hallmarks of WB include severe skeletal muscle fibrosis, inflammation, myofiber necrosis, and multifocal degeneration of muscle tissue. The transmembrane proteoglycans syndecans have a wide spectrum of biological functions and are master regulators of tissue homeostasis. They are upregulated and shed (cleaved) as a regulatory mechanism during tissue repair and regeneration. During the last decades, it has become clear that the syndecan family also has critical functions in skeletal muscle growth, however, their potential involvement in WB pathogenesis is unknown. Methods: In this study, we have categorized four groups of WB myopathy in broiler chickens and performed a comprehensive characterization of the molecular and histological profiles of two of them, with a special focus on the role of the syndecans and remodeling of the extracellular matrix (ECM). Results and discussion: Our findings reveal differential expression and shedding of the four syndecan family members and increased matrix metalloproteinase activity. Additionally, we identified alterations in key signaling pathways such as MAPK, AKT, and Wnt. Our work provides novel insights into a deeper understanding of WB pathogenesis and suggests potential therapeutic targets for this condition.
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Affiliation(s)
| | | | - Matthew Peter Kent
- Center for Integrative Genetics, Department of Animal and Aquacultural Sciences, Faculty of Biosciences (BIOVIT), Norwegian University of Life Sciences (NMBU), Ås, Norway
| | | | - Vibeke Høst
- Raw Materials and Optimization, Nofima AS, Ås, Norway
| | - To Thu-Hien
- Center for Integrative Genetics, Department of Animal and Aquacultural Sciences, Faculty of Biosciences (BIOVIT), Norwegian University of Life Sciences (NMBU), Ås, Norway
| | | | - Marianne Lunde
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Ellen Mosleth
- Raw Materials and Optimization, Nofima AS, Ås, Norway
| | | | - Svein Olav Kolset
- Department of Nutrition, Institute of Basic Medical Science, University of Oslo, Oslo, Norway
| | - Cathrine Rein Carlson
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
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2
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Jones FK, Phillips A, Jones AR, Pisconti A. The INSR/AKT/mTOR pathway regulates the pace of myogenesis in a syndecan-3-dependent manner. Matrix Biol 2022; 113:61-82. [PMID: 36152781 DOI: 10.1016/j.matbio.2022.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 09/08/2022] [Accepted: 09/19/2022] [Indexed: 11/25/2022]
Abstract
Muscle stem cells (MuSCs) are indispensable for muscle regeneration. A multitude of extracellular stimuli direct MuSC fate decisions from quiescent progenitors to differentiated myocytes. The activity of these signals is modulated by coreceptors such as syndecan-3 (SDC3). We investigated the global landscape of SDC3-mediated regulation of myogenesis using a phosphoproteomics approach which revealed, with the precision level of individual phosphosites, the large-scale extent of SDC3-mediated regulation of signal transduction in MuSCs. We then focused on INSR/AKT/mTOR as a key pathway regulated by SDC3 during myogenesis and mechanistically dissected SDC3-mediated inhibition of insulin receptor signaling in MuSCs. SDC3 interacts with INSR ultimately limiting signal transduction via AKT/mTOR. Both knockdown of INSR and inhibition of AKT rescue Sdc3-/- MuSC differentiation to wild type levels. Since SDC3 is rapidly downregulated at the onset of differentiation, our study suggests that SDC3 acts a timekeeper to restrain proliferating MuSC response and prevent premature differentiation.
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Affiliation(s)
- Fiona K Jones
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, USA
| | - Alexander Phillips
- School of Electrical Engineering, Electronics and Computer Science, University of Liverpool, Liverpool, UK
| | - Andrew R Jones
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
| | - Addolorata Pisconti
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, USA.
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3
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Johnson de Sousa Brito FM, Butcher A, Pisconti A, Poulet B, Prior A, Charlesworth G, Sperinck C, Scotto di Mase M, Liu K, Bou-Gharios G, Jurgen van 't Hof R, Daroszewska A. Syndecan-3 enhances anabolic bone formation through WNT signaling. FASEB J 2021; 35:e21246. [PMID: 33769615 PMCID: PMC8251628 DOI: 10.1096/fj.202002024r] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/17/2020] [Accepted: 11/23/2020] [Indexed: 12/25/2022]
Abstract
Osteoporosis is the most common age‐related metabolic bone disorder, which is characterized by low bone mass and deterioration in bone architecture, with a propensity to fragility fractures. The best treatment for osteoporosis relies on stimulation of osteoblasts to form new bone and restore bone structure, however, anabolic therapeutics are few and their use is time restricted. Here, we report that Syndecan‐3 increases new bone formation through enhancement of WNT signaling in osteoblasts. Young adult Sdc3−/− mice have low bone volume, reduced bone formation, increased bone marrow adipose tissue, increased bone fragility, and a blunted anabolic bone formation response to mechanical loading. This premature osteoporosis‐like phenotype of Sdc3−/− mice is due to delayed osteoblast maturation and impaired osteoblast function, with contributing increased osteoclast‐mediated bone resorption. Indeed, overexpressing Sdc3 in osteoblasts using the Col1a1 promoter rescues the low bone volume phenotype of the Sdc3−/− mice, and also increases bone volume in WT mice. Mechanistically, SDC3 enhances canonical WNT signaling in osteoblasts through stabilization of Frizzled 1, making SDC3 an attractive target for novel bone anabolic drug development.
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Affiliation(s)
- Francesca Manuela Johnson de Sousa Brito
- Department of Musculoskeletal and Ageing Science (formerly Department of Musculoskeletal Biology), Institute of Life Course and Medical Sciences (formerly Institute of Ageing and Chronic Disease), University of Liverpool, Liverpool, UK
| | - Andrew Butcher
- Department of Musculoskeletal and Ageing Science (formerly Department of Musculoskeletal Biology), Institute of Life Course and Medical Sciences (formerly Institute of Ageing and Chronic Disease), University of Liverpool, Liverpool, UK
| | - Addolorata Pisconti
- Department of Biochemistry, IIB, University of Liverpool, Liverpool, UK.,Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, USA
| | - Blandine Poulet
- Department of Musculoskeletal and Ageing Science (formerly Department of Musculoskeletal Biology), Institute of Life Course and Medical Sciences (formerly Institute of Ageing and Chronic Disease), University of Liverpool, Liverpool, UK
| | - Amanda Prior
- Department of Musculoskeletal and Ageing Science (formerly Department of Musculoskeletal Biology), Institute of Life Course and Medical Sciences (formerly Institute of Ageing and Chronic Disease), University of Liverpool, Liverpool, UK
| | - Gemma Charlesworth
- Department of Musculoskeletal and Ageing Science (formerly Department of Musculoskeletal Biology), Institute of Life Course and Medical Sciences (formerly Institute of Ageing and Chronic Disease), University of Liverpool, Liverpool, UK
| | - Catherine Sperinck
- Department of Musculoskeletal and Ageing Science (formerly Department of Musculoskeletal Biology), Institute of Life Course and Medical Sciences (formerly Institute of Ageing and Chronic Disease), University of Liverpool, Liverpool, UK
| | - Michele Scotto di Mase
- Department of Musculoskeletal and Ageing Science (formerly Department of Musculoskeletal Biology), Institute of Life Course and Medical Sciences (formerly Institute of Ageing and Chronic Disease), University of Liverpool, Liverpool, UK
| | - Ke Liu
- Department of Musculoskeletal and Ageing Science (formerly Department of Musculoskeletal Biology), Institute of Life Course and Medical Sciences (formerly Institute of Ageing and Chronic Disease), University of Liverpool, Liverpool, UK
| | - George Bou-Gharios
- Department of Musculoskeletal and Ageing Science (formerly Department of Musculoskeletal Biology), Institute of Life Course and Medical Sciences (formerly Institute of Ageing and Chronic Disease), University of Liverpool, Liverpool, UK
| | - Robert Jurgen van 't Hof
- Department of Musculoskeletal and Ageing Science (formerly Department of Musculoskeletal Biology), Institute of Life Course and Medical Sciences (formerly Institute of Ageing and Chronic Disease), University of Liverpool, Liverpool, UK
| | - Anna Daroszewska
- Department of Musculoskeletal and Ageing Science (formerly Department of Musculoskeletal Biology), Institute of Life Course and Medical Sciences (formerly Institute of Ageing and Chronic Disease), University of Liverpool, Liverpool, UK.,Department of Clinical Biochemistry and Metabolic Medicine, Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK.,Department of Rheumatology, Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK
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4
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Rønning SB, Carlson CR, Aronsen JM, Pisconti A, Høst V, Lunde M, Liland KH, Sjaastad I, Kolset SO, Christensen G, Pedersen ME. Syndecan-4 -/- Mice Have Smaller Muscle Fibers, Increased Akt/mTOR/S6K1 and Notch/HES-1 Pathways, and Alterations in Extracellular Matrix Components. Front Cell Dev Biol 2020; 8:730. [PMID: 32850844 PMCID: PMC7411008 DOI: 10.3389/fcell.2020.00730] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 05/06/2020] [Accepted: 07/15/2020] [Indexed: 12/11/2022] Open
Abstract
Background Extracellular matrix (ECM) remodeling is essential for skeletal muscle development and adaption in response to environmental cues such as exercise and injury. The cell surface proteoglycan syndecan-4 has been reported to be essential for muscle differentiation, but few molecular mechanisms are known. Syndecan-4–/– mice are unable to regenerate damaged muscle, and display deficient satellite cell activation, proliferation, and differentiation. A reduced myofiber basal lamina has also been reported in syndecan-4–/– muscle, indicating possible defects in ECM production. To get a better understanding of the underlying molecular mechanisms, we have here investigated the effects of syndecan-4 genetic ablation on molecules involved in ECM remodeling and muscle growth, both under steady state conditions and in response to exercise. Methods Tibialis anterior (TA) muscles from sedentary and exercised syndecan-4–/– and WT mice were analyzed by immunohistochemistry, real-time PCR and western blotting. Results Compared to WT, we found that syndecan-4–/– mice had reduced body weight, reduced muscle weight, muscle fibers with a smaller cross-sectional area, and reduced expression of myogenic regulatory transcription factors. Sedentary syndecan-4–/– had also increased mRNA levels of syndecan-2, decorin, collagens, fibromodulin, biglycan, and LOX. Some of these latter ECM components were reduced at protein level, suggesting them to be more susceptible to degradation or less efficiently translated when syndecan-4 is absent. At the protein level, TRPC7 was reduced, whereas activation of the Akt/mTOR/S6K1 and Notch/HES-1 pathways were increased. Finally, although exercise induced upregulation of several of these components in WT, a further upregulation of these molecules was not observed in exercised syndecan-4–/– mice. Conclusion Altogether our data suggest an important role of syndecan-4 in muscle development.
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Affiliation(s)
| | - Cathrine Rein Carlson
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Jan Magnus Aronsen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway.,Bjørknes College, Oslo, Norway
| | - Addolorata Pisconti
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, United States
| | | | - Marianne Lunde
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Kristian Hovde Liland
- Nofima AS, Ås, Norway.,Faculty of Sciences and Technology, Norwegian University of Life Sciences, Ås, Norway
| | - Ivar Sjaastad
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway.,K.G. Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway
| | - Svein Olav Kolset
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Geir Christensen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway.,K.G. Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway
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5
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Jones FK, Hardman GE, Ferries S, Eyers CE, Pisconti A. Myoblast Phosphoproteomics as a Tool to Investigate Global Signaling Events During Myogenesis. Methods Mol Biol 2019; 1889:301-317. [PMID: 30367422 DOI: 10.1007/978-1-4939-8897-6_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 12/13/2022]
Abstract
Protein phosphorylation is a universal covalent chemical modification of amino acids involved in a large number of biological processes including cell signaling, metabolism, proliferation, differentiation, survival/death, ageing, and many more. Regulation of protein phosphorylation is essential in myogenesis and indeed, when the enzymatic activity of protein kinases is distrupted in myoblasts, myogenesis is affected. In this chapter we describe a method to profile the phosphoproteome of myoblasts using mass spectrometry. Phosphate groups are labile and easily lost during the processing of samples for mass spectrometry. Thus, effective methods to enrich for phosphopeptides from protein extracts have been developed. Here, we discuss and present in detail two such methods that we routinely employ. These methods are based on a sample enrichment step performed on titanium dioxide matrices followed by label-free tandem mass spectrometry and semi-quantitation.
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Affiliation(s)
- Fiona K Jones
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool, UK
| | - Gemma E Hardman
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool, UK.,Centre for Proteome Research, Institute of Integrative Biology, University of Liverpool, Liverpool, UK
| | - Samantha Ferries
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool, UK.,Centre for Proteome Research, Institute of Integrative Biology, University of Liverpool, Liverpool, UK
| | - Claire E Eyers
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool, UK.,Centre for Proteome Research, Institute of Integrative Biology, University of Liverpool, Liverpool, UK
| | - Addolorata Pisconti
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool, UK.
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6
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Flamini V, Ghadiali RS, Antczak P, Rothwell A, Turnbull JE, Pisconti A. The Satellite Cell Niche Regulates the Balance between Myoblast Differentiation and Self-Renewal via p53. Stem Cell Reports 2018; 10:970-983. [PMID: 29429962 PMCID: PMC5918193 DOI: 10.1016/j.stemcr.2018.01.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [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: 10/11/2016] [Revised: 01/11/2018] [Accepted: 01/12/2018] [Indexed: 12/18/2022] Open
Abstract
Satellite cells are adult muscle stem cells residing in a specialized niche that regulates their homeostasis. How niche-generated signals integrate to regulate gene expression in satellite cell-derived myoblasts is poorly understood. We undertook an unbiased approach to study the effect of the satellite cell niche on satellite cell-derived myoblast transcriptional regulation and identified the tumor suppressor p53 as a key player in the regulation of myoblast quiescence. After activation and proliferation, a subpopulation of myoblasts cultured in the presence of the niche upregulates p53 and fails to differentiate. When satellite cell self-renewal is modeled ex vivo in a reserve cell assay, myoblasts treated with Nutlin-3, which increases p53 levels in the cell, fail to differentiate and instead become quiescent. Since both these Nutlin-3 effects are rescued by small interfering RNA-mediated p53 knockdown, we conclude that a tight control of p53 levels in myoblasts regulates the balance between differentiation and return to quiescence.
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Affiliation(s)
- Valentina Flamini
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, UK
| | - Rachel S Ghadiali
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, UK
| | - Philipp Antczak
- Department of Functional Genomics, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, UK; Computational Biology Facility, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, UK
| | - Amy Rothwell
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, UK
| | - Jeremy E Turnbull
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, UK
| | - Addolorata Pisconti
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, UK.
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7
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Abstract
The regulation of stem cells that maintain and regenerate postnatal tissues depends on extrinsic signals originating from their microenvironment, commonly referred to as the stem cell niche. Complex higher-order regulatory interrelationships with the tissue and factors in the systemic circulation are integrated and propagated to the stem cells through the niche. The stem cell niche in skeletal muscle tissue is both a paradigm for a structurally and functionally relatively static niche that maintains stem cell quiescence during tissue homeostasis, and a highly dynamic regenerative niche that is subject to extensive structural remodeling and a flux of different support cell populations. Conditions ranging from aging to chronically degenerative skeletal muscle diseases affect the composition of the niche and thereby impair the regenerative potential of muscle stem cells. A holistic and integrative understanding of the extrinsic mechanisms regulating muscle stem cells in health and disease in a broad systemic context will be imperative for the identification of regulatory hubs in the niche interactome that can be targeted to maintain, restore, or enhance the regenerative capacity of muscle tissue. Here, we review the microenvironmental regulation of muscle stem cells, summarize how niche dysfunction can contribute to disease, and discuss emerging therapeutic implications.
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Affiliation(s)
- Omid Mashinchian
- Nestlé Institute of Health Sciences, Lausanne, Switzerland; École Polytechnique Fédérale de Lausanne, Doctoral Program in Biotechnology and Bioengineering, Lausanne, Switzerland
| | - Addolorata Pisconti
- Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Emmeran Le Moal
- Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - C Florian Bentzinger
- Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, QC, Canada.
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8
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Pisconti A, Banks GB, Babaeijandaghi F, Betta ND, Rossi FMV, Chamberlain JS, Olwin BB. Loss of niche-satellite cell interactions in syndecan-3 null mice alters muscle progenitor cell homeostasis improving muscle regeneration. Skelet Muscle 2016; 6:34. [PMID: 27757223 PMCID: PMC5064903 DOI: 10.1186/s13395-016-0104-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [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: 09/20/2015] [Accepted: 08/26/2016] [Indexed: 02/04/2023] Open
Abstract
Background The skeletal muscle stem cell niche provides an environment that maintains quiescent satellite cells, required for skeletal muscle homeostasis and regeneration. Syndecan-3, a transmembrane proteoglycan expressed in satellite cells, supports communication with the niche, providing cell interactions and signals to maintain quiescent satellite cells. Results Syndecan-3 ablation unexpectedly improves regeneration in repeatedly injured muscle and in dystrophic mice, accompanied by the persistence of sublaminar and interstitial, proliferating myoblasts. Additionally, muscle aging is improved in syndecan-3 null mice. Since syndecan-3 null myofiber-associated satellite cells downregulate Pax7 and migrate away from the niche more readily than wild type cells, syxndecan-3 appears to regulate satellite cell homeostasis and satellite cell homing to the niche. Conclusions Manipulating syndecan-3 provides a promising target for development of therapies to enhance muscle regeneration in muscular dystrophies and in aged muscle. Electronic supplementary material The online version of this article (doi:10.1186/s13395-016-0104-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Addolorata Pisconti
- Department of Cellular, Molecular and Developmental Biology, University of Colorado at Boulder, Boulder, CO 80309 USA ; Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool, L69 7ZB UK
| | - Glen B Banks
- Department of Neurology, University of Washington, Mail Stop 357720, Seattle, WA 98195 USA
| | | | - Nicole Dalla Betta
- Department of Cellular, Molecular and Developmental Biology, University of Colorado at Boulder, Boulder, CO 80309 USA
| | - Fabio M V Rossi
- The Biomedical Research Centre, UBC, Vancouver, BC V6T 1Z Canada
| | - Jeffrey S Chamberlain
- Department of Neurology, University of Washington, Mail Stop 357720, Seattle, WA 98195 USA
| | - Bradley B Olwin
- Department of Cellular, Molecular and Developmental Biology, University of Colorado at Boulder, Boulder, CO 80309 USA
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9
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Ghadiali RS, Guimond SE, Turnbull JE, Pisconti A. Dynamic changes in heparan sulfate during muscle differentiation and ageing regulate myoblast cell fate and FGF2 signalling. Matrix Biol 2016; 59:54-68. [PMID: 27496348 PMCID: PMC5380652 DOI: 10.1016/j.matbio.2016.07.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [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: 04/03/2016] [Revised: 07/24/2016] [Accepted: 07/25/2016] [Indexed: 01/16/2023]
Abstract
Satellite cells (SCs) are skeletal muscle stem cells residing quiescent around healthy muscle fibres. In response to injury or disease SCs activate, proliferate and eventually differentiate and fuse to one another to form new muscle fibres, or to existing damaged fibres to repair them. The sulfated polysaccharide heparan sulfate (HS) is a highly variable biomolecule known to play key roles in the regulation of cell fate decisions, though the changes that muscle HS undergoes during SC differentiation are unknown. Here we show that the sulfation levels of HS increase during SC differentiation; more specifically, we observe an increase in 6-O and 2-O-sulfation in N-acetylated disaccharides. Interestingly, a specific increase in 6-O sulfation is also observed in the heparanome of ageing muscle, which we show leads to promotion of FGF2 signalling and satellite cell proliferation, suggesting a role for the heparanome dynamics in age-associated loss of quiescence. Addition of HS mimetics to differentiating SC cultures results in differential effects: an oversulfated HS mimetic increases differentiation and inhibits FGF2 signalling, a known major promoter of SC proliferation and inhibitor of differentiation. In contrast, FGF2 signalling is promoted by an N-acetylated HS mimetic, which inhibits differentiation and promotes SC expansion. We conclude that the heparanome of SCs is dynamically regulated during muscle differentiation and ageing, and that such changes might account for some of the phenotypes and signalling events that are associated with these processes.
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Affiliation(s)
- R S Ghadiali
- Department of Biochemistry, Centre for Glycobiology, Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool L69 7ZB, United Kingdom
| | - S E Guimond
- Department of Biochemistry, Centre for Glycobiology, Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool L69 7ZB, United Kingdom
| | - J E Turnbull
- Department of Biochemistry, Centre for Glycobiology, Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool L69 7ZB, United Kingdom
| | - A Pisconti
- Department of Biochemistry, Centre for Glycobiology, Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool L69 7ZB, United Kingdom.
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10
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Arecco N, Clarke CJ, Jones FK, Simpson DM, Mason D, Beynon RJ, Pisconti A. Elastase levels and activity are increased in dystrophic muscle and impair myoblast cell survival, proliferation and differentiation. Sci Rep 2016; 6:24708. [PMID: 27241590 PMCID: PMC4886533 DOI: 10.1038/srep24708] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [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: 10/07/2015] [Accepted: 04/04/2016] [Indexed: 01/31/2023] Open
Abstract
In Duchenne muscular dystrophy, progressive loss of muscle tissue is accompanied by fibrosis, chronic inflammation and reduced muscle regenerative capacity. Although much is known about the development of fibrosis and chronic inflammation in muscular dystrophy, less is known about how they are mechanistically linked to loss of muscle regenerative capacity. We have developed a proteomics method to discover dystrophy-associated changes in the muscle progenitor cell niche, which identified serine proteases, and especially neutrophil elastase, as candidates. We show that elastase activity is increased in dystrophic (mdx4cv) muscle and impairs myoblast survival in culture. While the effect of elastase on C2C12 cell survival correlates with the kinetics of elastase-mediated degradation of the substrate to which the cells adhere, the effect of elastase on satellite cell-derived primary myoblast growth and differentiation is substrate-independent and even more dramatic than the effect on C2C12 cells, suggesting a detrimental role for elastase on myogenesis in vivo. Additionally, elastase impairs differentiation of both primary and C2C12 myoblasts into myotubes. Our findings evidence the importance of neutrophil-mediated inflammation in muscular dystrophy and indicate elastase-mediated regulation of myoblast behaviour as a potential mechanism underlying loss of regenerative capacity in dystrophic muscle.
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Affiliation(s)
- N Arecco
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool L69 7ZB, UK
| | - C J Clarke
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool L69 7ZB, UK
| | - F K Jones
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool L69 7ZB, UK
| | - D M Simpson
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool L69 7ZB, UK.,Centre for Proteome Research, University of Liverpool, Liverpool L69 7ZB, UK
| | - D Mason
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool L69 7ZB, UK.,Centre for Cell Imaging, University of Liverpool, Crown Street, Liverpool L69 7ZB, UK
| | - R J Beynon
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool L69 7ZB, UK.,Centre for Proteome Research, University of Liverpool, Liverpool L69 7ZB, UK
| | - A Pisconti
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool L69 7ZB, UK
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11
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Qi D, Zhang H, Fan J, Perkins S, Pisconti A, Simpson DM, Bessant C, Hubbard S, Jones AR. The mzqLibrary--An open source Java library supporting the HUPO-PSI quantitative proteomics standard. Proteomics 2015; 15:3152-62. [PMID: 26037908 PMCID: PMC4973685 DOI: 10.1002/pmic.201400535] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 05/02/2015] [Accepted: 05/29/2015] [Indexed: 12/02/2022]
Abstract
The mzQuantML standard has been developed by the Proteomics Standards Initiative for capturing, archiving and exchanging quantitative proteomic data, derived from mass spectrometry. It is a rich XML‐based format, capable of representing data about two‐dimensional features from LC‐MS data, and peptides, proteins or groups of proteins that have been quantified from multiple samples. In this article we report the development of an open source Java‐based library of routines for mzQuantML, called the mzqLibrary, and associated software for visualising data called the mzqViewer. The mzqLibrary contains routines for mapping (peptide) identifications on quantified features, inference of protein (group)‐level quantification values from peptide‐level values, normalisation and basic statistics for differential expression. These routines can be accessed via the command line, via a Java programming interface access or a basic graphical user interface. The mzqLibrary also contains several file format converters, including import converters (to mzQuantML) from OpenMS, Progenesis LC‐MS and MaxQuant, and exporters (from mzQuantML) to other standards or useful formats (mzTab, HTML, csv). The mzqViewer contains in‐built routines for viewing the tables of data (about features, peptides or proteins), and connects to the R statistical library for more advanced plotting options. The mzqLibrary and mzqViewer packages are available from https://code.google.com/p/mzq‐lib/.
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Affiliation(s)
- Da Qi
- Institute of Integrative Biology, University of Liverpool, Liverpool, UK
| | - Huaizhong Zhang
- The Faculty of Life Sciences, University of Manchester, Manchester, UK
| | - Jun Fan
- The School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
| | - Simon Perkins
- Institute of Integrative Biology, University of Liverpool, Liverpool, UK
| | | | - Deborah M Simpson
- Institute of Integrative Biology, University of Liverpool, Liverpool, UK
| | - Conrad Bessant
- The School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
| | - Simon Hubbard
- The Faculty of Life Sciences, University of Manchester, Manchester, UK
| | - Andrew R Jones
- Institute of Integrative Biology, University of Liverpool, Liverpool, UK
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12
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Baty R, Pisconti A, Turnbull J. P57 * STEM CELL PLASTICITY AND TUMORIGENISIS: REGULATORY ROLES OF HEPARAN SULPHATE IN THE CANCER STEM CELL NICHE. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou249.44] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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13
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Abstract
Post-natal growth and regeneration of skeletal muscle is highly dependent on a population of resident myogenic precursors known as satellite cells. Transcription factors from the Pax gene family, Pax3 and Pax7, are critical for satellite cell biogenesis, survival and potentially self-renewal; however, the underlying molecular mechanisms remain unsolved. This is particularly true in the case of Pax7, which appears to regulate myogenesis at multiple levels. Accordingly, recent data have highlighted the importance of a functional relationship between Pax7 and the MyoD family of muscle regulatory transcription factors during normal muscle formation and disease. Here we will critically review key findings suggesting that Pax7 may play a dual role by promoting resident muscle progenitors to commit to the skeletal muscle lineage while preventing terminal differentiation, thus keeping muscle progenitors poised to differentiate upon environmental cues. In addition, potential regulatory mechanisms for the control of Pax7 activity will be proposed.
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Affiliation(s)
- Hugo C Olguín
- Departamento Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.
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14
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Pisconti A, Bernet JD, Olwin BB. Syndecans in skeletal muscle development, regeneration and homeostasis. Muscles Ligaments Tendons J 2012; 2:1-9. [PMID: 23738267 PMCID: PMC3666495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Skeletal muscle is a highly dynamic tissue that can change in size in response to physiological demands and undergo successful regeneration even upon extensive injury. A population of resident stem cells, termed satellite cells, accounts for skeletal muscle plasticity, maintenance and regeneration. Mammalian satellite cells, generated from muscle precursor cells during development, are maintained quiescent in the musculature throughout a lifespan, but ready to activate, proliferate and differentiate into myocytes upon demand. Syndecans are transmembrane heparan sulfate proteoglycans expressed in muscle precursors during embryonic development and in satellite cells during postnatal life. In the last decades a number of crucial functions for syndecans in myogenesis and muscle disease have been described. Here we review the current knowledge of the multiple roles played by syndecans in the skeletal muscle of several animal models and explore future perspectives for human muscle health, with a focus on muscle aging and muscular dystrophy.
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Affiliation(s)
- Addolorata Pisconti
- Corresponding author: Addolorata Pisconti, MCD-Biology, 347 UCB, Boulder, CO 80309, USA, e-mail:
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15
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Doyle MJ, Zhou S, Tanaka KK, Pisconti A, Farina NH, Sorrentino BP, Olwin BB. Abcg2 labels multiple cell types in skeletal muscle and participates in muscle regeneration. ACTA ACUST UNITED AC 2011; 195:147-63. [PMID: 21949413 PMCID: PMC3187700 DOI: 10.1083/jcb.201103159] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Abcg2-expressing cells proliferate after muscle injury and are required for effective regeneration of multiple muscle cell lineages. Skeletal muscle contains progenitor cells (satellite cells) that maintain and repair muscle. It also contains muscle side population (SP) cells, which express Abcg2 and may participate in muscle regeneration or may represent a source of satellite cell replenishment. In Abcg2-null mice, the SP fraction is lost in skeletal muscle, although the significance of this loss was previously unknown. We show that cells expressing Abcg2 increased upon injury and that muscle regeneration was impaired in Abcg2-null mice, resulting in fewer centrally nucleated myofibers, reduced myofiber size, and fewer satellite cells. Additionally, using genetic lineage tracing, we demonstrate that the progeny of Abcg2-expressing cells contributed to multiple cell types within the muscle interstitium, primarily endothelial cells. After injury, Abcg2 progeny made a minor contribution to regenerated myofibers. Furthermore, Abcg2-labeled cells increased significantly upon injury and appeared to traffic to muscle from peripheral blood. Together, these data suggest an important role for Abcg2 in positively regulating skeletal muscle regeneration.
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Affiliation(s)
- Michelle J Doyle
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, CO 80309, USA
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16
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Abstract
Syndecan-3 is required for Notch processing by ADAM17/TACe and therefore regulates proliferation and viability of muscle satellite cells. Skeletal muscle postnatal growth and repair depend on satellite cells and are regulated by molecular signals within the satellite cell niche. We investigated the molecular and cellular events that lead to altered myogenesis upon genetic ablation of Syndecan-3, a component of the satellite cell niche. In the absence of Syndecan-3, satellite cells stall in S phase, leading to reduced proliferation, increased cell death, delayed onset of differentiation, and markedly reduced numbers of Pax7+ satellite cells accompanied by myofiber hypertrophy and an increased number of centrally nucleated myofibers. We show that the aberrant cell cycle and impaired self-renewal of explanted Syndecan-3–null satellite cells are rescued by ectopic expression of the constitutively active Notch intracellular domain. Furthermore, we show that Syndecan-3 interacts with Notch and is required for Notch processing by ADAM17/tumor necrosis factor-α–converting enzyme (TACE) and signal transduction. Together, our data support the conclusion that Syndecan-3 and Notch cooperate in regulating homeostasis of the satellite cell population and myofiber size.
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Affiliation(s)
- Addolorata Pisconti
- Department of Molecular, Cellular and Developmental Biology, University of Colorado, Boulder, CO 80309, USA
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17
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Valerio A, Cardile A, Cozzi V, Bracale R, Tedesco L, Pisconti A, Palomba L, Cantoni O, Clementi E, Moncada S, Carruba MO, Nisoli E. TNF- downregulates eNOS expression and mitochondrial biogenesis in fat and muscle of obese rodents. J Clin Invest 2006. [DOI: 10.1172/jci28570.] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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18
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Valerio A, Cardile A, Cozzi V, Bracale R, Tedesco L, Pisconti A, Palomba L, Cantoni O, Clementi E, Moncada S, Carruba MO, Nisoli E. TNF-alpha downregulates eNOS expression and mitochondrial biogenesis in fat and muscle of obese rodents. J Clin Invest 2006; 116:2791-8. [PMID: 16981010 PMCID: PMC1564431 DOI: 10.1172/jci28570] [Citation(s) in RCA: 241] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2006] [Accepted: 07/25/2006] [Indexed: 12/16/2022] Open
Abstract
Obesity is associated with chronic low-grade inflammation. Thus, at metabolically relevant sites, including adipose tissue and muscle, there is abnormal production of proinflammatory cytokines such as TNF-alpha. Here we demonstrate that eNOS expression was reduced, with a concomitant reduction of mitochondrial biogenesis and function, in white and brown adipose tissue and in the soleus muscle of 3 different animal models of obesity. The genetic deletion of TNF receptor 1 in obese mice restored eNOS expression and mitochondrial biogenesis in fat and muscle; this was associated with less body weight gain than in obese wild-type controls. Furthermore, TNF-alpha downregulated eNOS expression and mitochondrial biogenesis in cultured white and brown adipocytes and muscle satellite cells of mice. The NO donors DETA-NO and SNAP prevented the reduction of mitochondrial biogenesis observed with TNF-alpha. Our findings demonstrate that TNF-alpha impairs mitochondrial biogenesis and function in different tissues of obese rodents by downregulating eNOS expression and suggest a novel pathophysiological process that sustains obesity.
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Affiliation(s)
- Alessandra Valerio
- Integrated Laboratories Network, Center for Study and Research on Obesity, Department of Pharmacology, School of Medicine, University of Milan, Milan, Italy.
Department of Preclinical Sciences, University of Milan, Milan, Italy.
CEINGE Biotecnologie Avanzate, Naples, Italy.
Istituto Auxologico Italiano, Milan, Italy.
Stem Cell Research Institute, San Raffaele Scientific Institute, Milan, Italy.
Istituto di Farmacologia e Farmacognosia, University of Urbino “Carlo Bo,” Urbino, Italy.
Eugenio Medea Scientific Institute, Lecco, Italy.
Wolfson Institute for Biomedical Research, University College London, London, United Kingdom
| | - Annalisa Cardile
- Integrated Laboratories Network, Center for Study and Research on Obesity, Department of Pharmacology, School of Medicine, University of Milan, Milan, Italy.
Department of Preclinical Sciences, University of Milan, Milan, Italy.
CEINGE Biotecnologie Avanzate, Naples, Italy.
Istituto Auxologico Italiano, Milan, Italy.
Stem Cell Research Institute, San Raffaele Scientific Institute, Milan, Italy.
Istituto di Farmacologia e Farmacognosia, University of Urbino “Carlo Bo,” Urbino, Italy.
Eugenio Medea Scientific Institute, Lecco, Italy.
Wolfson Institute for Biomedical Research, University College London, London, United Kingdom
| | - Valeria Cozzi
- Integrated Laboratories Network, Center for Study and Research on Obesity, Department of Pharmacology, School of Medicine, University of Milan, Milan, Italy.
Department of Preclinical Sciences, University of Milan, Milan, Italy.
CEINGE Biotecnologie Avanzate, Naples, Italy.
Istituto Auxologico Italiano, Milan, Italy.
Stem Cell Research Institute, San Raffaele Scientific Institute, Milan, Italy.
Istituto di Farmacologia e Farmacognosia, University of Urbino “Carlo Bo,” Urbino, Italy.
Eugenio Medea Scientific Institute, Lecco, Italy.
Wolfson Institute for Biomedical Research, University College London, London, United Kingdom
| | - Renata Bracale
- Integrated Laboratories Network, Center for Study and Research on Obesity, Department of Pharmacology, School of Medicine, University of Milan, Milan, Italy.
Department of Preclinical Sciences, University of Milan, Milan, Italy.
CEINGE Biotecnologie Avanzate, Naples, Italy.
Istituto Auxologico Italiano, Milan, Italy.
Stem Cell Research Institute, San Raffaele Scientific Institute, Milan, Italy.
Istituto di Farmacologia e Farmacognosia, University of Urbino “Carlo Bo,” Urbino, Italy.
Eugenio Medea Scientific Institute, Lecco, Italy.
Wolfson Institute for Biomedical Research, University College London, London, United Kingdom
| | - Laura Tedesco
- Integrated Laboratories Network, Center for Study and Research on Obesity, Department of Pharmacology, School of Medicine, University of Milan, Milan, Italy.
Department of Preclinical Sciences, University of Milan, Milan, Italy.
CEINGE Biotecnologie Avanzate, Naples, Italy.
Istituto Auxologico Italiano, Milan, Italy.
Stem Cell Research Institute, San Raffaele Scientific Institute, Milan, Italy.
Istituto di Farmacologia e Farmacognosia, University of Urbino “Carlo Bo,” Urbino, Italy.
Eugenio Medea Scientific Institute, Lecco, Italy.
Wolfson Institute for Biomedical Research, University College London, London, United Kingdom
| | - Addolorata Pisconti
- Integrated Laboratories Network, Center for Study and Research on Obesity, Department of Pharmacology, School of Medicine, University of Milan, Milan, Italy.
Department of Preclinical Sciences, University of Milan, Milan, Italy.
CEINGE Biotecnologie Avanzate, Naples, Italy.
Istituto Auxologico Italiano, Milan, Italy.
Stem Cell Research Institute, San Raffaele Scientific Institute, Milan, Italy.
Istituto di Farmacologia e Farmacognosia, University of Urbino “Carlo Bo,” Urbino, Italy.
Eugenio Medea Scientific Institute, Lecco, Italy.
Wolfson Institute for Biomedical Research, University College London, London, United Kingdom
| | - Letizia Palomba
- Integrated Laboratories Network, Center for Study and Research on Obesity, Department of Pharmacology, School of Medicine, University of Milan, Milan, Italy.
Department of Preclinical Sciences, University of Milan, Milan, Italy.
CEINGE Biotecnologie Avanzate, Naples, Italy.
Istituto Auxologico Italiano, Milan, Italy.
Stem Cell Research Institute, San Raffaele Scientific Institute, Milan, Italy.
Istituto di Farmacologia e Farmacognosia, University of Urbino “Carlo Bo,” Urbino, Italy.
Eugenio Medea Scientific Institute, Lecco, Italy.
Wolfson Institute for Biomedical Research, University College London, London, United Kingdom
| | - Orazio Cantoni
- Integrated Laboratories Network, Center for Study and Research on Obesity, Department of Pharmacology, School of Medicine, University of Milan, Milan, Italy.
Department of Preclinical Sciences, University of Milan, Milan, Italy.
CEINGE Biotecnologie Avanzate, Naples, Italy.
Istituto Auxologico Italiano, Milan, Italy.
Stem Cell Research Institute, San Raffaele Scientific Institute, Milan, Italy.
Istituto di Farmacologia e Farmacognosia, University of Urbino “Carlo Bo,” Urbino, Italy.
Eugenio Medea Scientific Institute, Lecco, Italy.
Wolfson Institute for Biomedical Research, University College London, London, United Kingdom
| | - Emilio Clementi
- Integrated Laboratories Network, Center for Study and Research on Obesity, Department of Pharmacology, School of Medicine, University of Milan, Milan, Italy.
Department of Preclinical Sciences, University of Milan, Milan, Italy.
CEINGE Biotecnologie Avanzate, Naples, Italy.
Istituto Auxologico Italiano, Milan, Italy.
Stem Cell Research Institute, San Raffaele Scientific Institute, Milan, Italy.
Istituto di Farmacologia e Farmacognosia, University of Urbino “Carlo Bo,” Urbino, Italy.
Eugenio Medea Scientific Institute, Lecco, Italy.
Wolfson Institute for Biomedical Research, University College London, London, United Kingdom
| | - Salvador Moncada
- Integrated Laboratories Network, Center for Study and Research on Obesity, Department of Pharmacology, School of Medicine, University of Milan, Milan, Italy.
Department of Preclinical Sciences, University of Milan, Milan, Italy.
CEINGE Biotecnologie Avanzate, Naples, Italy.
Istituto Auxologico Italiano, Milan, Italy.
Stem Cell Research Institute, San Raffaele Scientific Institute, Milan, Italy.
Istituto di Farmacologia e Farmacognosia, University of Urbino “Carlo Bo,” Urbino, Italy.
Eugenio Medea Scientific Institute, Lecco, Italy.
Wolfson Institute for Biomedical Research, University College London, London, United Kingdom
| | - Michele O. Carruba
- Integrated Laboratories Network, Center for Study and Research on Obesity, Department of Pharmacology, School of Medicine, University of Milan, Milan, Italy.
Department of Preclinical Sciences, University of Milan, Milan, Italy.
CEINGE Biotecnologie Avanzate, Naples, Italy.
Istituto Auxologico Italiano, Milan, Italy.
Stem Cell Research Institute, San Raffaele Scientific Institute, Milan, Italy.
Istituto di Farmacologia e Farmacognosia, University of Urbino “Carlo Bo,” Urbino, Italy.
Eugenio Medea Scientific Institute, Lecco, Italy.
Wolfson Institute for Biomedical Research, University College London, London, United Kingdom
| | - Enzo Nisoli
- Integrated Laboratories Network, Center for Study and Research on Obesity, Department of Pharmacology, School of Medicine, University of Milan, Milan, Italy.
Department of Preclinical Sciences, University of Milan, Milan, Italy.
CEINGE Biotecnologie Avanzate, Naples, Italy.
Istituto Auxologico Italiano, Milan, Italy.
Stem Cell Research Institute, San Raffaele Scientific Institute, Milan, Italy.
Istituto di Farmacologia e Farmacognosia, University of Urbino “Carlo Bo,” Urbino, Italy.
Eugenio Medea Scientific Institute, Lecco, Italy.
Wolfson Institute for Biomedical Research, University College London, London, United Kingdom
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19
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Tortorella C, Stella I, Piazzolla G, Cappiello V, Simone O, Pisconti A, Antonaci S. Impaired interleukin-12-dependent T-cell functions during aging: role of signal transducer and activator of transcription 4 (STAT4) and suppressor of cytokine signaling 3 (SOCS3). J Gerontol A Biol Sci Med Sci 2006; 61:125-35. [PMID: 16510856 DOI: 10.1093/gerona/61.2.125] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Interleukin (IL)-12 is the major inducer of T helper cell (Th) 1-type responses. Despite a higher IL-12 production, phytohemagglutinin (PHA)-stimulated peripheral blood mononuclear cells (PBMC), as well as CD4(+) or CD8(+) T cells from elderly donors released interferon (IFN)-gamma amounts similar to those observed in young controls, and underwent only a slight increase in IFN-gamma production after IL-12 costimulation. These findings were not due to an age-related reduction in IL-12 receptor expression. Interestingly, no difference in PHA-triggered signal transducer and activator of transcription 4 (STAT4) phosphorylation between young and elderly donors was found, and a significant IL-12-induced STAT4 activation occurred only in PHA-preactivated cells from the younger group. The age-related defect in IL-12 signaling was STAT4-restricted as it did not involve the p38 mitogen-activated protein kinase (MAPK) pathway. Finally, suppressor of cytokine signaling 3 (SOCS3) expression was significantly higher in unstimulated cells from elderly individuals, and it did not diminish after cell stimulation. These results indicate that a defective STAT4 activation, likely dependent on elevated SOCS3 levels, is involved in the impaired IL-12-dependent T-cell functions with aging.
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Affiliation(s)
- Cosimo Tortorella
- Department of Internal Medicine, Immunology and Infectious Diseases, Section of Internal Medicine, University of Bari Medical School, Policlinico, 70124 Bari, Italy.
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20
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Pisconti A, Brunelli S, Di Padova M, De Palma C, Deponti D, Baesso S, Sartorelli V, Cossu G, Clementi E. Follistatin induction by nitric oxide through cyclic GMP: a tightly regulated signaling pathway that controls myoblast fusion. ACTA ACUST UNITED AC 2006; 172:233-44. [PMID: 16401724 PMCID: PMC2063553 DOI: 10.1083/jcb.200507083] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
The mechanism of skeletal myoblast fusion is not well understood. We show that endogenous nitric oxide (NO) generation is required for myoblast fusion both in embryonic myoblasts and in satellite cells. The effect of NO is concentration and time dependent, being evident only at the onset of differentiation, and direct on the fusion process itself. The action of NO is mediated through a tightly regulated activation of guanylate cyclase and generation of cyclic guanosine monophosphate (cGMP), so much so that deregulation of cGMP signaling leads to a fusion-induced hypertrophy of satellite-derived myotubes and embryonic muscles, and to the acquisition of fusion competence by myogenic precursors in the presomitic mesoderm. NO and cGMP induce expression of follistatin, and this secreted protein mediates their action in myogenesis. These results establish a hitherto unappreciated role of NO and cGMP in regulating myoblast fusion and elucidate their mechanism of action, providing a direct link with follistatin, which is a key player in myogenesis.
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21
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Nisoli E, Falcone S, Tonello C, Cozzi V, Palomba L, Fiorani M, Pisconti A, Brunelli S, Cardile A, Francolini M, Cantoni O, Carruba MO, Moncada S, Clementi E. Mitochondrial biogenesis by NO yields functionally active mitochondria in mammals. Proc Natl Acad Sci U S A 2004; 101:16507-12. [PMID: 15545607 PMCID: PMC534517 DOI: 10.1073/pnas.0405432101] [Citation(s) in RCA: 369] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
We recently found that long-term exposure to nitric oxide (NO) triggers mitochondrial biogenesis in mammalian cells and tissues by activation of guanylate cyclase and generation of cGMP. Here, we report that the NO/cGMP-dependent mitochondrial biogenesis is associated with enhanced coupled respiration and content of ATP in U937, L6, and PC12 cells. The observed increase in ATP content depended entirely on oxidative phosphorylation, because ATP formation by glycolysis was unchanged. Brain, kidney, liver, heart, and gastrocnemius muscle from endothelial NO synthase null mutant mice displayed markedly reduced mitochondrial content associated with significantly lower oxygen consumption and ATP content. In these tissues, ultrastructural analyses revealed significantly smaller mitochondria. Furthermore, a significant reduction in the number of mitochondria was observed in the subsarcolemmal region of the gastrocnemius muscle. We conclude that NO/cGMP stimulates mitochondrial biogenesis, both in vitro and in vivo, and that this stimulation is associated with increased mitochondrial function, resulting in enhanced formation of ATP.
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Affiliation(s)
- Enzo Nisoli
- Department of Preclinical Sciences, Laboratorio Interdisciplinare Technologie Avanzate (LITA) Vialba, University of Milan, 20157 Milan, Italy.
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22
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Falcone S, Perrotta C, De Palma C, Pisconti A, Sciorati C, Capobianco A, Rovere-Querini P, Manfredi AA, Clementi E. Activation of acid sphingomyelinase and its inhibition by the nitric oxide/cyclic guanosine 3',5'-monophosphate pathway: key events in Escherichia coli-elicited apoptosis of dendritic cells. J Immunol 2004; 173:4452-63. [PMID: 15383576 DOI: 10.4049/jimmunol.173.7.4452] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Depletion of dendritic cells (DCs) via apoptosis contributes to sepsis-induced immune suppression. The mechanisms leading to DC apoptosis during sepsis are not known. In this study we report that immature DCs undergo apoptosis when treated with high numbers of Escherichia coli. This effect was mimicked by high concentrations of LPS. Apoptosis was accompanied by generation of ceramide through activation of acid sphingomyelinase (A-SMase), was prevented by inhibitors of this enzyme, and was restored by exogenous ceramide. Compared with immature DCs, mature DCs expressed significantly reduced levels of A-SMase, did not generate ceramide in response to E. coli or LPS, and were insensitive to E. coli- and LPS-triggered apoptosis. However, sensitivity to apoptosis was restored by addition of exogenous A-SMase or ceramide. Furthermore, inhibition of A-SMase activation and ceramide generation was found to be the mechanism through which the immune-modulating messenger NO protects immature DCs from the apoptogenic effects of E. coli and LPS. NO acted through formation of cGMP and stimulation of the cGMP-dependent protein kinase. The relevance of A-SMase and its inhibition by NO/cGMP were confirmed in a mouse model of LPS-induced sepsis. DC apoptosis was significantly higher in inducible NO synthase-deficient mice than in wild-type animals and was significantly reduced by treatment ex vivo with NO, cGMP, or the A-SMase inhibitor imipramine. Thus, A-SMase plays a central role in E. coli/LPS-induced DC apoptosis and its inhibition by NO, and it might be a target of new therapeutic approaches to sepsis.
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Affiliation(s)
- Sestina Falcone
- Vita-Salute University and Stem Cell Research Institute, San Raffaele, Milan, Italy
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23
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Perrotta C, Falcone S, Capobianco A, Camporeale A, Sciorati C, De Palma C, Pisconti A, Rovere-Querini P, Bellone M, Manfredi AA, Clementi E. Nitric oxide confers therapeutic activity to dendritic cells in a mouse model of melanoma. Cancer Res 2004; 64:3767-71. [PMID: 15172982 DOI: 10.1158/0008-5472.can-04-0668] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Susceptibility of dendritic cells (DCs) to tumor-induced apoptosis reduces their efficacy in cancer therapy. Here we show that delivery within exponentially growing B16 melanomas of DCs treated ex vivo with nitric oxide (NO), released by the NO donor (z)-1-[2-(2-aminoethyl)-N-(2-ammonioethyl)amino]diazen-1-ium-1,2-diolate (DETA-NO), significantly reduced tumor growth, with cure of 37% of animals. DETA-NO-treated DCs became resistant to tumor-induced apoptosis because DETA-NO prevented tumor-induced changes in the expression of Bcl-2, Bax, and Bcl-xL; activation of caspase-9; and a reduction in the mitochondrial membrane potential. DETA-NO also increased DC cytotoxic activity against tumor cells and DC ability to trigger T-lymphocyte proliferation. All of the effects of DETA-NO were mediated through cGMP generation. NO and NO-generating drugs may therefore be used to increase the anticancer efficacy of DCs.
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Tortorella C, Pisconti A, Piazzolla G, Antonaci S. APC-dependent impairment of T cell proliferation in aging: role of CD28- and IL-12/IL-15-mediated signaling. Mech Ageing Dev 2002; 123:1389-402. [PMID: 12297341 DOI: 10.1016/s0047-6374(02)00079-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The age-related impairment of phytohaemagglutinin (PHA)-triggered peripheral blood mononuclear cell (PBMC) proliferation was paralleled by an expansion of CD28 (-) T lymphocytes with a poor capacity to undergo lectin-induced blastogenesis. However, both CD28 (-) and CD28 (+) T cells isolated from aged individuals exhibited a significant reduction of proliferative response to PHA in comparison with young controls, this implies that the CD28-mediated signaling is not the only defective pathway in the elderly. Thus, PBMC or T cell subsets plus monocytes from aged donors were stimulated with PHA and assayed for the production of, or the response to cytokines known to regulate T cell functions. Results can be so summarized: (i). interleukin (IL)-2 as well as IL-10 release was unaffected by age; (ii). in both groups of subjects, IL-15 concentrations were similar to those spontaneously released by PBMC; (iii). surprisingly, IL-12 p70 and IL-12 p40 production by PBMC was markedly increased in the aged group; (iv) in spite of this finding and of the experimental outcome that IFN-gamma synthesis was almost completely dependent on IL-12. PBMC from old individuals did not release higher amounts of IFN-gamma in comparison with young controls; (v). moreover, only a slight increase in IFN-gamma production was observed in PBMC cultures from the aged group as a result of IL-12 and/or IL-15 costimulation; (vi) at the same time, even though IL-12 as well as IL-15 were necessary for an efficient T cell proliferation, the addition of exceeding doses of cytokines proved to be ineffective in enhancing the proliferative outcome of PBMC or of both CD28 (+) and CD28 (-) T cells in the aged group. Taken together, the data outline the role of CD28 and IL-12/IL-15 signaling impairment in T cell proliferative deficiency during senescence.
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Affiliation(s)
- Cosimo Tortorella
- Department of Internal Medicine, Immunology and Infectious Diseases, Section of Internal Medicine, University of Bari Medical School, Clinica Medica II, Policlinico, 70124, Bari, Italy.
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25
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Piazzolla G, Tortorella C, Fiore G, Fanelli M, Pisconti A, Antonaci S. Interleukin-12 p40/p70 ratio and in vivo responsiveness to IFN-alpha treatment in chronic hepatitis C. J Interferon Cytokine Res 2001; 21:453-61. [PMID: 11506737 DOI: 10.1089/10799900152434303] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
To evaluate the relationship between cytokine balance and responsiveness to interferon-alpha (IFN-alpha), we investigated the production of IFN-gamma, interleukin-10 (IL-10), IL-12 p70, and IL-12 p40 by peripheral blood mononuclear cell (PBMC) cultures from patients with chronic hepatitis C (CHC) before and after 1 year of IFN-alpha treatment. Before the therapy, responder (R) patients exhibited lower IFN-gamma release, higher IL-10 production, and higher values of the IL12 p40/p70 ratio compared with nonresponders (NR). Increased sensitivity to the effects of IL-12 and IL-10, as well as higher IL-12-dependent IFN-gamma secretion, were also found in the R subset. After IFN-alpha therapy, an increase in IFN-gamma production and a decrease in the IL-12 p40/p70 ratio were observed in R patients, whereas opposite results were obtained in the NR group. Finally, the therapy induced downregulation of IL-10 production and cell responsiveness to recombinant IL-12 in all patients. These findings imply that predominance of a T helper 2 (Th2) cytokine profile in CHC patients favors the beneficial effects of IFN-alpha, thus suggesting a therapeutic role for Th1-driven stimulation of immune response. The findings also stress the primary importance of the IL-12 p40 and p70 balance in the modulation of immune responses to hepatitis C virus (HCV).
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Affiliation(s)
- G Piazzolla
- Department of Internal Medicine, Immunology and Infectious Diseases, University of Bari Medical School, Bari, Italy.
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