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De Paola E, Forcina L, Pelosi L, Pisu S, La Rosa P, Cesari E, Nicoletti C, Madaro L, Mercatelli N, Biamonte F, Nobili A, D'Amelio M, De Bardi M, Volpe E, Caporossi D, Sette C, Musarò A, Paronetto MP. Sam68 splicing regulation contributes to motor unit establishment in the postnatal skeletal muscle. Life Sci Alliance 2020; 3:3/10/e201900637. [PMID: 32753528 PMCID: PMC7409371 DOI: 10.26508/lsa.201900637] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 01/08/2023] Open
Abstract
Sam68 ensures the establishment of neuromuscular junctions (NMJs) and motor unit integrity by orchestrating a neuronal splicing program. RNA-binding proteins orchestrate the composite life of RNA molecules and impact most physiological processes, thus underlying complex phenotypes. The RNA-binding protein Sam68 regulates differentiation processes by modulating splicing, polyadenylation, and stability of select transcripts. Herein, we found that Sam68−/− mice display altered regulation of alternative splicing in the spinal cord of key target genes involved in synaptic functions. Analysis of the motor units revealed that Sam68 ablation impairs the establishment of neuromuscular junctions and causes progressive loss of motor neurons in the spinal cord. Importantly, alterations of neuromuscular junction morphology and properties in Sam68−/− mice correlate with defects in muscle and motor unit integrity. Sam68−/− muscles display defects in postnatal development, with manifest signs of atrophy. Furthermore, fast-twitch muscles in Sam68−/− mice show structural features typical of slow-twitch muscles, suggesting alterations in the metabolic and functional properties of myofibers. Collectively, our data identify a key role for Sam68 in muscle development and suggest that proper establishment of motor units requires timely expression of synaptic splice variants.
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Affiliation(s)
- Elisa De Paola
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico," Rome, Italy.,IRCCS (Institute for Treatment and Research) Fondazione Santa Lucia, Rome, Italy
| | - Laura Forcina
- Laboratory Affiliated to Istituto Pasteur-Fondazione Cenci Bolognetti, DAHFMO-Unit of Histology and Medical Embryology, Sapienza University of Rome, Rome, Italy
| | - Laura Pelosi
- Laboratory Affiliated to Istituto Pasteur-Fondazione Cenci Bolognetti, DAHFMO-Unit of Histology and Medical Embryology, Sapienza University of Rome, Rome, Italy
| | - Simona Pisu
- Laboratory Affiliated to Istituto Pasteur-Fondazione Cenci Bolognetti, DAHFMO-Unit of Histology and Medical Embryology, Sapienza University of Rome, Rome, Italy
| | - Piergiorgio La Rosa
- IRCCS (Institute for Treatment and Research) Fondazione Santa Lucia, Rome, Italy
| | - Eleonora Cesari
- IRCCS (Institute for Treatment and Research) Fondazione Santa Lucia, Rome, Italy.,Institute of Human Anatomy and Cell Biology, Catholic University of the Sacred Heart, Rome, Italy
| | - Carmine Nicoletti
- Laboratory Affiliated to Istituto Pasteur-Fondazione Cenci Bolognetti, DAHFMO-Unit of Histology and Medical Embryology, Sapienza University of Rome, Rome, Italy
| | - Luca Madaro
- Institute of Human Anatomy and Cell Biology, Catholic University of the Sacred Heart, Rome, Italy
| | - Neri Mercatelli
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico," Rome, Italy.,IRCCS (Institute for Treatment and Research) Fondazione Santa Lucia, Rome, Italy
| | - Filippo Biamonte
- Institute of Biochemistry and Clinical Biochemistry, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Annalisa Nobili
- IRCCS (Institute for Treatment and Research) Fondazione Santa Lucia, Rome, Italy.,Department of Medicine, University Campus-Biomedico, Rome, Italy
| | - Marcello D'Amelio
- IRCCS (Institute for Treatment and Research) Fondazione Santa Lucia, Rome, Italy.,Department of Medicine, University Campus-Biomedico, Rome, Italy
| | - Marco De Bardi
- IRCCS (Institute for Treatment and Research) Fondazione Santa Lucia, Rome, Italy
| | - Elisabetta Volpe
- IRCCS (Institute for Treatment and Research) Fondazione Santa Lucia, Rome, Italy
| | - Daniela Caporossi
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico," Rome, Italy
| | - Claudio Sette
- IRCCS (Institute for Treatment and Research) Fondazione Santa Lucia, Rome, Italy .,Institute of Human Anatomy and Cell Biology, Catholic University of the Sacred Heart, Rome, Italy
| | - Antonio Musarò
- Laboratory Affiliated to Istituto Pasteur-Fondazione Cenci Bolognetti, DAHFMO-Unit of Histology and Medical Embryology, Sapienza University of Rome, Rome, Italy
| | - Maria Paola Paronetto
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico," Rome, Italy .,IRCCS (Institute for Treatment and Research) Fondazione Santa Lucia, Rome, Italy
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Mercatelli N, Fortini D, Palombo R, Paronetto MP. Small molecule inhibition of Ewing sarcoma cell growth via targeting the long non coding RNA HULC. Cancer Lett 2019; 469:111-123. [PMID: 31639426 DOI: 10.1016/j.canlet.2019.10.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [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: 07/26/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 01/02/2023]
Abstract
Ewing sarcomas (ES) are aggressive pediatric cancers of bone and soft tissues characterized by in frame chromosomal translocations giving rise to chimeric transcription factors, such as EWS-FLI1. An emerging strategy to block EWS-FLI1 activity is represented by the small molecule YK-4-279, which binds to EWS-FLI1 and alters its transcriptional activity. The specific effectors of the anti-oncogenic activity of YK-4-279 are still largely unknown. Herein, by performing a high-throughput screening we identify the lncRNA HULC (Highly Upregulated in Liver Cancer) as a prominent target of YK-4-279 activity in ES cells. High levels of HULC correlate with ES aggressiveness, whereas HULC depletion reduces ES cell growth. Mechanistically, we find that HULC promotes the expression of TWIST1 oncogene by sponging miR-186. Downregulation of HULC upon treatment with YK-4-279 reduces the expression of TWIST1 by unleashing miR-186 and favoring its binding to TWIST1 transcripts. Notably, high levels of miR-186 and low levels of TWIST1 correlate with better prognosis in ES patients. Our results disclose a novel oncogenic regulatory circuit mediated by HULC lncRNA that is disrupted by the small molecule YK-4-279, with promising therapeutic implications for ES treatment.
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Affiliation(s)
- Neri Mercatelli
- Laboratory of Molecular and Cellular Neurobiology, IRCCS Santa Lucia Foundation, Rome, 00143, Italy.
| | - Diana Fortini
- Laboratory of Molecular and Cellular Neurobiology, IRCCS Santa Lucia Foundation, Rome, 00143, Italy
| | - Ramona Palombo
- Laboratory of Molecular and Cellular Neurobiology, IRCCS Santa Lucia Foundation, Rome, 00143, Italy
| | - Maria Paola Paronetto
- Laboratory of Molecular and Cellular Neurobiology, IRCCS Santa Lucia Foundation, Rome, 00143, Italy; Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 6, 00135, Rome, Italy.
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Palombo R, Frisone P, Fidaleo M, Mercatelli N, Sette C, Paronetto MP. The Promoter-Associated Noncoding RNA pncCCND1_B Assembles a Protein-RNA Complex to Regulate Cyclin D1 Transcription in Ewing Sarcoma. Cancer Res 2019; 79:3570-3582. [PMID: 31072811 DOI: 10.1158/0008-5472.can-18-2403] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 12/05/2018] [Accepted: 05/03/2019] [Indexed: 11/16/2022]
Abstract
Most Ewing sarcomas are characterized by the in-frame chromosomal translocation t(11;22) generating the EWS-FLI1 oncogene. EWS-FLI1 protein interacts with the RNA helicase DHX9 and affects transcription and processing of genes involved in neoplastic transformation, including CCND1 (the cyclin D1 gene), which contributes to cell-cycle dysregulation in cancer. In this study, we found that CCND1 expression is significantly higher in patients with Ewing sarcoma compared with other sarcomas and that the pncCCND1_B RNA, a previously uncharacterized CCND1 promoter-associated noncoding (pnc) transcript, is expressed in Ewing sarcoma cells. PncCCND1_B interacted with the RNA-binding protein Sam68 and repressed CCND1 expression. Notably, knockdown of Sam68 affected pncCCND1_B subcellular localization and cyclin D1 expression. Pharmacologic impairment of DHX9/EWS-FLI1 interaction promoted RNA-dependent association of Sam68 with DHX9 and recruitment of Sam68 to the CCND1 promoter, thus repressing it. Conversely, mitogenic stimulation of Ewing sarcoma cells with IGF1 impaired Sam68/DHX9 interaction and positively regulated CCND1 expression. These studies uncover a fine-tuned modulation of the proto-oncogene CCND1 in Ewing sarcoma cells via alternative complexes formed by DHX9 with either EWS-FLI1 or pncCCND1_B-Sam68. SIGNIFICANCE: A pncRNA-based mechanism represses expression of CCND1 through the formation of a protein-RNA complex and provides new therapeutic opportunities for patients with Ewing sarcoma.Graphical Abstract: http://cancerres.aacrjournals.org/content/canres/79/14/3570/F1.large.jpg.
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Affiliation(s)
- Ramona Palombo
- Laboratory of Cellular and Molecular Neurobiology, Fondazione Santa Lucia, Via del Fosso di Fiorano, Rome, Italy
| | - Paola Frisone
- Laboratory of Cellular and Molecular Neurobiology, Fondazione Santa Lucia, Via del Fosso di Fiorano, Rome, Italy
| | - Marco Fidaleo
- Laboratory of Cellular and Molecular Neurobiology, Fondazione Santa Lucia, Via del Fosso di Fiorano, Rome, Italy
| | - Neri Mercatelli
- Laboratory of Cellular and Molecular Neurobiology, Fondazione Santa Lucia, Via del Fosso di Fiorano, Rome, Italy
| | - Claudio Sette
- Institute of Human Anatomy and Cell Biology, Catholic University of the Sacred Hearth, Rome, Italy
| | - Maria Paola Paronetto
- Laboratory of Cellular and Molecular Neurobiology, Fondazione Santa Lucia, Via del Fosso di Fiorano, Rome, Italy. .,Department of Movement, Human and Health Sciences, University of Rome "Foro Italico," Piazza Lauro de Bosis 6, Rome, Italy
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Dimauro I, Antonioni A, Mercatelli N, Caporossi D. The role of αB-crystallin in skeletal and cardiac muscle tissues. Cell Stress Chaperones 2018; 23:491-505. [PMID: 29190034 PMCID: PMC6045558 DOI: 10.1007/s12192-017-0866-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [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: 08/05/2017] [Revised: 11/23/2017] [Accepted: 11/25/2017] [Indexed: 12/25/2022] Open
Abstract
All organisms and cells respond to various stress conditions such as environmental, metabolic, or pathophysiological stress by generally upregulating, among others, the expression and/or activation of a group of proteins called heat shock proteins (HSPs). Among the HSPs, special attention has been devoted to the mutations affecting the function of the αB-crystallin (HSPB5), a small heat shock protein (sHsp) playing a critical role in the modulation of several cellular processes related to survival and stress recovery, such as protein degradation, cytoskeletal stabilization, and apoptosis. Because of the emerging role in general health and disease conditions, the main objective of this mini-review is to provide a brief account on the role of HSPB5 in mammalian muscle physiopathology. Here, we report the current known state of the regulation and localization of HSPB5 in skeletal and cardiac tissue, making also a critical summary of all human HSPB5 mutations known to be strictly associated to specific skeletal and cardiac diseases, such as desmin-related myopathies (DRM), dilated (DCM) and restrictive (RCM) cardiomyopathy. Finally, pointing to putative strategies for HSPB5-based therapy to prevent or counteract these forms of human muscular disorders.
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Affiliation(s)
- Ivan Dimauro
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Ambra Antonioni
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Neri Mercatelli
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Daniela Caporossi
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
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Magi F, Dimauro I, Margheritini F, Duranti G, Mercatelli N, Fantini C, Ripani FR, Sabatini S, Caporossi D. Telomere length is independently associated with age, oxidative biomarkers, and sport training in skeletal muscle of healthy adult males. Free Radic Res 2018; 52:639-647. [DOI: 10.1080/10715762.2018.1459043] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Fiorenza Magi
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Ivan Dimauro
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Fabrizio Margheritini
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Guglielmo Duranti
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Neri Mercatelli
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Cristina Fantini
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Francesca Romana Ripani
- Department of Anatomical, Histological, Forensic Medicine and Orthopaedics Sciences, University “La Sapienza”, Rome, Italy
| | - Stefania Sabatini
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Daniela Caporossi
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
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Svetoni F, De Paola E, La Rosa P, Mercatelli N, Caporossi D, Sette C, Paronetto MP. Post-transcriptional regulation of FUS and EWS protein expression by miR-141 during neural differentiation. Hum Mol Genet 2018; 26:2732-2746. [PMID: 28453628 DOI: 10.1093/hmg/ddx160] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 04/21/2017] [Indexed: 12/31/2022] Open
Abstract
Brain development involves proliferation, migration and specification of neural progenitor cells, culminating in neuronal circuit formation. Mounting evidence indicates that improper regulation of RNA binding proteins (RBPs), including members of the FET (FUS, EWS, TAF15) family, results in defective cortical development and/or neurodegenerative disorders. However, in spite of their physiological relevance, the precise pattern of FET protein expression in developing neurons is largely unknown. Herein, we found that FUS, EWS and TAF15 expression is differentially regulated during brain development, both in time and in space. In particular, our study identifies a fine-tuned regulation of FUS and EWS during neuronal differentiation, whereas TAF15 appears to be more constitutively expressed. Mechanistically FUS and EWS protein expression is regulated at the post-transcriptional level during neuron differentiation and brain development. Moreover, we identified miR-141 as a key regulator of these FET proteins that modulate their expression levels in differentiating neuronal cells. Thus, our studies uncover a novel link between post-transcriptional regulation of FET proteins expression and neurogenesis.
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Affiliation(s)
- Francesca Svetoni
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", 00135 Rome, Italy.,Laboratories of Cellular and Molecular Neurobiology and of Neuroembryology, Fondazione Santa Lucia, 00143 Rome, Italy
| | - Elisa De Paola
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", 00135 Rome, Italy.,Laboratories of Cellular and Molecular Neurobiology and of Neuroembryology, Fondazione Santa Lucia, 00143 Rome, Italy
| | - Piergiorgio La Rosa
- Laboratories of Cellular and Molecular Neurobiology and of Neuroembryology, Fondazione Santa Lucia, 00143 Rome, Italy.,Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Neri Mercatelli
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", 00135 Rome, Italy.,Laboratories of Cellular and Molecular Neurobiology and of Neuroembryology, Fondazione Santa Lucia, 00143 Rome, Italy
| | - Daniela Caporossi
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", 00135 Rome, Italy
| | - Claudio Sette
- Laboratories of Cellular and Molecular Neurobiology and of Neuroembryology, Fondazione Santa Lucia, 00143 Rome, Italy.,Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Maria Paola Paronetto
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", 00135 Rome, Italy.,Laboratories of Cellular and Molecular Neurobiology and of Neuroembryology, Fondazione Santa Lucia, 00143 Rome, Italy
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de Perini A, Dimauro I, Duranti G, Fantini C, Mercatelli N, Ceci R, Di Luigi L, Sabatini S, Caporossi D. The p75 NTR-mediated effect of nerve growth factor in L6C5 myogenic cells. BMC Res Notes 2017; 10:686. [PMID: 29202822 PMCID: PMC5716223 DOI: 10.1186/s13104-017-2994-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 07/17/2017] [Accepted: 11/25/2017] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVE During muscle development or regeneration, myocytes produce nerve growth factor (NGF) as well as its tyrosine-kinase and p75-neurotrophin (p75NTR) receptors. It has been published that the p75NTR receptor could represent a key regulator of NGF-mediated myoprotective effect on satellite cells, but the precise function of NGF/p75 signaling pathway on myogenic cell proliferation, survival and differentiation remains fragmented and controversial. Here, we verified the role of NGF in the growth, survival and differentiation of p75NTR-expressing L6C5 myogenic cells, specifically inquiring for the putative involvement of the nuclear factor κB (NFκB) and the small heat shock proteins (sHSPs) αB-crystallin and Hsp27 in these processes. RESULTS Although NGF was not effective in modulating myogenic cell growth or survival in both standard or stress conditions, we demonstrated for the first time that, under serum deprivation, NGF sustained the activity of some key enzymes involved in energy metabolism. Moreover, we confirmed that NGF promotes myogenic fusion and expression of the structural protein myosin heavy chain while modulating NFκB activation and the content of sHSPs correlated with the differentiation process. We conclude that p75NTR is sufficient to mediate the modulation of L6C5 myogenic differentiation by NGF in term of structural, metabolic and functional changes.
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Affiliation(s)
- Alessandra de Perini
- Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis, 15, 00135 Rome, Italy
| | - Ivan Dimauro
- Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis, 15, 00135 Rome, Italy
| | - Guglielmo Duranti
- Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis, 15, 00135 Rome, Italy
| | - Cristina Fantini
- Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis, 15, 00135 Rome, Italy
| | - Neri Mercatelli
- Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis, 15, 00135 Rome, Italy
- Laboratory of Cellular and Molecular Neurobiology, CERC, Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143 Rome, Italy
| | - Roberta Ceci
- Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis, 15, 00135 Rome, Italy
| | - Luigi Di Luigi
- Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis, 15, 00135 Rome, Italy
| | - Stefania Sabatini
- Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis, 15, 00135 Rome, Italy
| | - Daniela Caporossi
- Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis, 15, 00135 Rome, Italy
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Grazioli E, Dimauro I, Mercatelli N, Wang G, Pitsiladis Y, Di Luigi L, Caporossi D. Physical activity in the prevention of human diseases: role of epigenetic modifications. BMC Genomics 2017; 18:802. [PMID: 29143608 PMCID: PMC5688489 DOI: 10.1186/s12864-017-4193-5] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Epigenetic modification refers to heritable changes in gene function that cannot be explained by alterations in the DNA sequence. The current literature clearly demonstrates that the epigenetic response is highly dynamic and influenced by different biological and environmental factors such as aging, nutrient availability and physical exercise. As such, it is well accepted that physical activity and exercise can modulate gene expression through epigenetic alternations although the type and duration of exercise eliciting specific epigenetic effects that can result in health benefits and prevent chronic diseases remains to be determined. This review highlights the most significant findings from epigenetic studies involving physical activity/exercise interventions known to benefit chronic diseases such as metabolic syndrome, diabetes, cancer, cardiovascular and neurodegenerative diseases.
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Affiliation(s)
- Elisa Grazioli
- Department of Movement, Human and Health Sciences, Unit of Biology, Genetics and Biochemistry, University of Rome "Foro Italico", Rome, Italy
| | - Ivan Dimauro
- Department of Movement, Human and Health Sciences, Unit of Biology, Genetics and Biochemistry, University of Rome "Foro Italico", Rome, Italy
| | - Neri Mercatelli
- Department of Movement, Human and Health Sciences, Unit of Biology, Genetics and Biochemistry, University of Rome "Foro Italico", Rome, Italy
| | - Guan Wang
- FIMS Reference Collaborating Centre of Sports Medicine for Anti-Doping Research, University of Brighton, Brighton, UK
| | - Yannis Pitsiladis
- Department of Movement, Human and Health Sciences, Unit of Biology, Genetics and Biochemistry, University of Rome "Foro Italico", Rome, Italy.,FIMS Reference Collaborating Centre of Sports Medicine for Anti-Doping Research, University of Brighton, Brighton, UK
| | - Luigi Di Luigi
- Department of Movement, Human and Health Sciences, Unit of Endocrinology, University of Rome "Foro Italico", Rome, Italy
| | - Daniela Caporossi
- Department of Movement, Human and Health Sciences, Unit of Biology, Genetics and Biochemistry, University of Rome "Foro Italico", Rome, Italy.
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Cumming KT, Raastad T, Sørstrøm A, Paronetto MP, Mercatelli N, Ugelstad I, Caporossi D, Paulsen G. Vitamin C and E supplementation does not affect heat shock proteins or endogenous antioxidants in trained skeletal muscles during 12 weeks of strength training. BMC Nutr 2017; 3:70. [PMID: 32153849 PMCID: PMC7050865 DOI: 10.1186/s40795-017-0185-8] [Citation(s) in RCA: 5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 07/11/2017] [Indexed: 01/04/2023] Open
Abstract
Background Supplementation with large doses of antioxidants, such as vitamin C and E, has been shown to blunt some adaptations to endurance training. The effects of antioxidant supplementation on adaptations to strength training is sparsely studied. Herein we investigated the effects of vitamin C and E supplementation on acute stress responses to exercise and adaptation to traditional heavy load strength training. Methods In a double blind placebo-controlled design, twenty-eight, young, trained males and females were randomly assigned to receive either vitamin C and E (C: 1000 mg, E: 235 mg, per day) or placebo supplements, and underwent strength training for 10 weeks. After five weeks, a subgroup conducted a strength training session to investigate acute stress responses. Muscle samples were obtained to investigate changes in stress responses and in proteins and mRNA related to the heat shock proteins (HSPs) or antioxidant enzymes. Results The acute responses to the exercise session revealed activation of the NFκB pathway indicated by degradation of IκBα in both groups. Vitamin C and E supplementation had, however, no effects on the acute stress responses. Furthermore, ten weeks of strength training did not change muscle αB-crystallin, HSP27, HSP70, GPx1 or mnSOD levels, with no influence of supplementation. Conclusions Our results showed that although vitamin C and E supplementation has been shown to interfere with training adaptations, it did not affect acute stress responses or long-term training adaptations in the HSPs or antioxidant enzymes in this study. Electronic supplementary material The online version of this article (doi:10.1186/s40795-017-0185-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- K T Cumming
- 1Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - T Raastad
- 1Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - A Sørstrøm
- 1Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - M P Paronetto
- 2Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
| | - N Mercatelli
- 2Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
| | - I Ugelstad
- 1Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - D Caporossi
- 2Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
| | - G Paulsen
- 1Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway.,Norwegian Olympic Sports Center, Oslo, Norway
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10
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Mercatelli N, Fittipaldi S, De Paola E, Dimauro I, Paronetto MP, Jackson MJ, Caporossi D. MiR-23-TrxR1 as a novel molecular axis in skeletal muscle differentiation. Sci Rep 2017; 7:7219. [PMID: 28775321 PMCID: PMC5543121 DOI: 10.1038/s41598-017-07575-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 06/28/2017] [Indexed: 01/24/2023] Open
Abstract
Thioredoxin reductase 1 (TrxR1) is a selenocysteine-containing protein involved in cellular redox homeostasis which is downregulated in skeletal muscle differentiation. Here we show that TrxR1 decrease occurring during myogenesis is functionally involved in the coordination of this cellular process. Indeed, TrxR1 depletion reduces myoblasts growth by inducing an early myogenesis -related gene expression pattern which includes myogenin and Myf5 up-regulation and Cyclin D1 decrease. On the contrary, the overexpression of TrxR1 during differentiation delays myogenic process, by negatively affecting the expression of Myogenin and MyHC. Moreover, we found that miR-23a and miR-23b - whose expression was increased in the early stage of C2C12 differentiation - are involved in the regulation of TrxR1 expression through their direct binding to the 3' UTR of TrxR1 mRNA. Interestingly, the forced inhibition of miR-23a and miR-23b during C2C12 differentiation partially rescues TrxR1 levels and delays the expression of myogenic markers, suggesting the involvement of miR-23 in myogenesis via TrxR1 repression. Taken together, our results depict for the first time a novel molecular axis, which functionally acts in skeletal muscle differentiation through the modulation of TrxR1 by miR-23.
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Affiliation(s)
- Neri Mercatelli
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy.
| | - Simona Fittipaldi
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy.,IRCCS SDN Foundation, Naples, Italy
| | - Elisa De Paola
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy.,Laboratory of Cellular and Molecular Neurobiology, CERC, Fondazione Santa Lucia, Rome, Italy
| | - Ivan Dimauro
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
| | - Maria Paola Paronetto
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy.,Laboratory of Cellular and Molecular Neurobiology, CERC, Fondazione Santa Lucia, Rome, Italy
| | - Malcolm J Jackson
- Medical Research Council-Arthritis Research UK Centre for Integrated Research into Musculoskeletal Ageing, Department of Musculoskeletal Biology, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, United Kingdom
| | - Daniela Caporossi
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
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Mercatelli N, Galardi S, Ciafrè SA. MicroRNAs as Multifaceted Players in Glioblastoma Multiforme. MiRNAs in Differentiation and Development 2017; 333:269-323. [DOI: 10.1016/bs.ircmb.2017.03.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Dimauro I, Scalabrin M, Fantini C, Grazioli E, Beltran Valls MR, Mercatelli N, Parisi A, Sabatini S, Di Luigi L, Caporossi D. Resistance training and redox homeostasis: Correlation with age-associated genomic changes. Redox Biol 2016; 10:34-44. [PMID: 27687219 PMCID: PMC5040637 DOI: 10.1016/j.redox.2016.09.008] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [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: 08/01/2016] [Revised: 09/19/2016] [Accepted: 09/20/2016] [Indexed: 01/15/2023] Open
Abstract
Regular physical activity is effective as prevention and treatment for different chronic conditions related to the ageing processes. In fact, a sedentary lifestyle has been linked to a worsening of cellular ageing biomarkers such as telomere length (TL) and/or specific epigenetic changes (e.g. DNA methylation), with increase of the propensity to aging-related diseases and premature death. Extending our previous findings, we aimed to test the hypothesis that 12 weeks of low frequency, moderate intensity, explosive-type resistance training (EMRT) may attenuate age-associated genomic changes. To this aim, TL, global DNA methylation, TRF2, Ku80, SIRT1, SIRT2 and global protein acetylation, as well as other proteins involved in apoptotic pathway (Bcl-2, Bax and Caspase-3), antioxidant response (TrxR1 and MnSOD) and oxidative damage (myeloperoxidase) were evaluated before and after EMRT in whole blood or peripheral mononuclear cells (PBMCs) of elderly subjects. Our findings confirm the potential of EMRT to induce an adaptive change in the antioxidant protein systems at systemic level and suggest a putative role of resistance training in the reduction of global DNA methylation. Moreover, we observed that EMRT counteracts the telomeres' shortening in a manner that proved to be directly correlated with the amelioration of redox homeostasis and efficacy of training regime, evaluated as improvement of both muscle's power/strength and functional parameters.
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Affiliation(s)
- Ivan Dimauro
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 15, 00135 Rome, Italy.
| | - Mattia Scalabrin
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 15, 00135 Rome, Italy.
| | - Cristina Fantini
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 15, 00135 Rome, Italy.
| | - Elisa Grazioli
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 15, 00135 Rome, Italy.
| | - Maria Reyes Beltran Valls
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 15, 00135 Rome, Italy.
| | - Neri Mercatelli
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 15, 00135 Rome, Italy.
| | - Attilio Parisi
- Unit of Sport Medicine, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy.
| | - Stefania Sabatini
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 15, 00135 Rome, Italy.
| | - Luigi Di Luigi
- Unit of Endocrinology, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy.
| | - Daniela Caporossi
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 15, 00135 Rome, Italy.
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Abstract
Cells have evolved multiple and sophisticated stress response mechanisms aiming to prevent macromolecular (including proteins, lipids, and nucleic acids) damage and to maintain or re-establish cellular homeostasis. Heat shock proteins (HSPs) are among the most highly conserved, ubiquitous, and abundant proteins in all organisms. Originally discovered more than 50 years ago through heat shock stress, they display multiple, remarkable roles inside and outside cells under a variety of stresses, including also oxidative stress and radiation, recognizing unfolded or misfolded proteins and facilitating their restructuring. Exercise consists in a combination of physiological stresses, such as metabolic disturbances, changes in circulating levels of hormones, increased temperature, induction of mild to severe inflammatory state, increased production of reactive oxygen and nitrogen species (ROS and RNS). As a consequence, exercise is one of the main stimuli associated with a robust increase in different HSPs in several tissues, which appears to be also fundamental in facilitating the cellular remodeling processes related to the training regime. Among all factors involved in the exercise-related modulation of HSPs level, the ROS production in the contracting muscle or in other tissues represents one of the most attracting, but still under discussion, mechanism. Following exhaustive or damaging muscle exercise, major oxidative damage to proteins and lipids is likely involved in HSP expression, together with mechanically induced damage to muscle proteins and the inflammatory response occurring several days into the recovery period. Instead, the transient and reversible oxidation of proteins by physiological concentrations of ROS seems to be involved in the activation of stress response following non-damaging muscle exercise. This review aims to provide a critical update on the role of HSPs response in exercise-induced adaptation or damage in humans, focusing on experimental results where the link between redox homeostasis and HSPs expression by exercise has been addressed. Further, with the support of in vivo and in vitro studies, we discuss the putative molecular mechanisms underlying the ROS-mediated modulation of HSP expression and/or activity during exercise.
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Affiliation(s)
- Ivan Dimauro
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, 00135 Rome, Italy
| | - Neri Mercatelli
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, 00135 Rome, Italy
| | - Daniela Caporossi
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, 00135 Rome, Italy.
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Fittipaldi S, Mercatelli N, Dimauro I, Jackson MJ, Paronetto MP, Caporossi D. Alpha B-crystallin induction in skeletal muscle cells under redox imbalance is mediated by a JNK-dependent regulatory mechanism. Free Radic Biol Med 2015; 86:331-42. [PMID: 26066304 DOI: 10.1016/j.freeradbiomed.2015.05.035] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 05/12/2015] [Accepted: 05/30/2015] [Indexed: 11/28/2022]
Abstract
The small heat shock protein α-B-crystallin (CRYAB) is critically involved in stress-related cellular processes such as differentiation, apoptosis, and redox homeostasis. The up-regulation of CRYAB plays a key role in the cytoprotective and antioxidant response, but the molecular pathway driving its expression in muscle cells during oxidative stress still remains unknown. Here we show that noncytotoxic exposure to sodium meta-arsenite (NaAsO2) inducing redox imbalance is able to increase the CRYAB content of C2C12 myoblasts in a transcription-dependent manner. Our in silico analysis revealed a genomic region upstream of the Cryab promoter containing two putative antioxidant-responsive elements motifs and one AP-1-like binding site. The redox-sensitive transcription factors Nrf2 and the AP-1 component c-Jun were found to be up-regulated in NaAsO2-treated cells, and we demonstrated a specific NaAsO2-mediated increase of c-Jun and Nrf2 binding activity to the genomic region identified, supporting their putative involvement in CRYAB regulation following a shift in redox balance. These changes also correlated with a specific phosphorylation of JNK and p38 MAPK kinases, the well-known molecular mediators of signaling pathways leading to the activation of these transcription factors. Pretreatment of C2C12 cells with the JNK inhibitor SP600125 induced a decrease in c-Jun and Nrf2 content and was able to counteract the NaAsO2-mediated increase in CRYAB expression. Thus these data show a direct role of JNK in CRYAB regulation under redox imbalance and also point to a previously unrecognized link between c-Jun and Nrf2 transcription factors and redox-induced CRYAB expression in muscle cells.
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Affiliation(s)
- Simona Fittipaldi
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, Rome 00135, Italy
| | - Neri Mercatelli
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, Rome 00135, Italy.
| | - Ivan Dimauro
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, Rome 00135, Italy
| | - Malcolm J Jackson
- MRC-Arthritis Research UK Centre for Integrated Research into Musculoskeletal Ageing (CIMA), Department of Musculoskeletal Biology Institute of Ageing and Chronic Disease, University of Liverpool, L69 3GA, Liverpool, UK
| | - Maria Paola Paronetto
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, Rome 00135, Italy; Laboratory of Molecular and Cellular Neurobiology, CERC Fondazione Santa Lucia, Rome, Italy
| | - Daniela Caporossi
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, Rome 00135, Italy
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Cumming KT, Raastad T, Holden G, Bastani NE, Schneeberger D, Paronetto MP, Mercatelli N, Ostgaard HN, Ugelstad I, Caporossi D, Blomhoff R, Paulsen G. Effects of vitamin C and E supplementation on endogenous antioxidant systems and heat shock proteins in response to endurance training. Physiol Rep 2014; 2:2/10/e12142. [PMID: 25293598 PMCID: PMC4254089 DOI: 10.14814/phy2.12142] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [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] [Indexed: 02/04/2023] Open
Abstract
Reactive oxygen and nitrogen species are important signal molecules for adaptations to training. Due to the antioxidant properties of vitamin C and E, supplementation has been shown to blunt adaptations to endurance training. In this study, we investigated the effects of vitamin C and E supplementation and endurance training on adaptations in endogenous antioxidants and heat shock proteins (HSP). Thirty seven males and females were randomly assigned to receive Vitamin C and E (C + E; C: 1000 mg, E: 235 mg daily) or placebo (PLA), and underwent endurance training for 11 weeks. After 5 weeks, a subgroup conducted a high intensity interval session to investigate acute stress responses. Muscle and blood samples were obtained to investigate changes in proteins and mRNA related to the antioxidant and HSP system. The acute response to the interval session revealed no effects of C + E supplementation on NFκB activation. However, higher stress responses to exercise in C + E group was indicated by larger translocation of HSPs and a more pronounced gene expression compared to PLA. Eleven weeks of endurance training decreased muscle GPx1, HSP27 and αB‐crystallin, while mnSOD, HSP70 and GSH remained unchanged, with no influence of supplementation. Plasma GSH increased in both groups, while uric acid decreased in the C + E group only. Our results showed that C + E did not affect long‐term training adaptations in the antioxidant‐ and HSP systems. However, the greater stress responses to exercise in the C + E group might indicate that long‐term adaptations occurs through different mechanisms in the two groups. Reactive oxygen species are important signal molecules for adaptations to training. Previously vitamin C and E supplements has been shown to blunt adaptations to endurance training. In this study, we investigated the effects of vitamin C and E supplementation and endurance training on adaptations in endogenous antioxidants and heat shock proteins.
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Affiliation(s)
- Kristoffer T Cumming
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - Truls Raastad
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - Geir Holden
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - Nasser E Bastani
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Damaris Schneeberger
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - Maria Paola Paronetto
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
| | - Neri Mercatelli
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
| | - Hege N Ostgaard
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - Ingrid Ugelstad
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - Daniela Caporossi
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
| | - Rune Blomhoff
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway Division of Cancer Medicine, Surgery and Transplantation, Oslo University Hospital, Oslo, Norway
| | - Gøran Paulsen
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway Norwegian Olympic Sports Center, Oslo, Norway
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Grazioli E, Dimauro I, Mercatelli N, Barone R, Macaluso F, Fittipaldi S, Di Felice V, Caporossi D. SFRR-E Young Investigator AwardeeαB-crystallin modulation after acute exercise in skeletal muscle: the role of oxidative stress and fiber composition. Free Radic Biol Med 2014; 75 Suppl 1:S13-4. [PMID: 26461288 DOI: 10.1016/j.freeradbiomed.2014.10.585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
αB-crystallin (CRYAB) is a member of the small heat shock proteins implicated in various biological functions, particularly in skeletal muscle where it is involved in adaptive remodelling processes, activation of gene transcription and stabilization of nascent proteins.In this research we analysed αB-crystallin' response in mouse gastrocnemius at 15' and 30' of recovery from an acute aerobic exercise (1hour), correlating its modulation with oxidative stress level and fiber composition, red (RG) and white gastrocnemius (WG).We found for the first time that the acute exercise lead to a short term, specific increase of phospho-αB-crystallin level (pCRYAB) in the RG, while no changes were observed in the WG. Moreover, this induction was correlated with increased level of 4-hydroxynonenal (HNE),suggesting a putative role for oxidative stress in driving CRYAB, but not hsp70 or hsp27, activity during exercise. Any increased level of αB-crystallin' protein was observed neither in RG nor in WG. These data were also supported by our in vitro experiments showing a significant enhancement of pCRYAB in H2O2-treated C2C12 myotubes.Although our results seem suggest a fiber-dependent role of CRYAB, further experiments are in progress to clarify both the molecular pathway driving CRYAB phosphorylation and its fiber-specific induction after exercise -induced oxidative stress.This work was supported by MIUR - PRIN 2012 grant.
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Affiliation(s)
- Elisa Grazioli
- University of Rome Foro Italico (Rome), Department of Movement, Human and Health Sciences, Italy.
| | - Ivan Dimauro
- University of Rome Foro Italico (Rome), Department of Movement, Human and Health Sciences, Italy
| | - Neri Mercatelli
- University of Rome Foro Italico (Rome), Department of Movement, Human and Health Sciences, Italy
| | - Rosario Barone
- University of Palermo (Palermo), Department of Experimental Biomedicine and Clinical Neurosciences, Italy
| | - Filippo Macaluso
- University of Palermo (Palermo), Department of Experimental Biomedicine and Clinical Neurosciences, Italy
| | - Simona Fittipaldi
- University of Rome Foro Italico (Rome), Department of Movement, Human and Health Sciences, Italy
| | - Valentina Di Felice
- University of Palermo (Palermo), Department of Experimental Biomedicine and Clinical Neurosciences, Italy
| | - Daniela Caporossi
- University of Rome Foro Italico (Rome), Department of Movement, Human and Health Sciences, Italy
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Dimauro I, Grasso L, Fittipaldi S, Fantini C, Mercatelli N, Racca S, Geuna S, Di Gianfrancesco A, Caporossi D, Pigozzi F, Borrione P. Platelet-rich plasma and skeletal muscle healing: a molecular analysis of the early phases of the regeneration process in an experimental animal model. PLoS One 2014; 9:e102993. [PMID: 25054279 PMCID: PMC4108405 DOI: 10.1371/journal.pone.0102993] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [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: 03/10/2014] [Accepted: 06/24/2014] [Indexed: 12/27/2022] Open
Abstract
Platelet-rich plasma (PRP) has received increasing interest in applied medicine, being widely used in clinical practice with the aim of stimulating tissue healing. Despite the reported clinical success, there is still a lack of knowledge when considering the biological mechanisms at the base of the activity of PRP during the process of muscle healing. The aim of the present study was to verify whether the local delivery of PRP modulates specific molecular events involved in the early stages of the muscle regeneration process. The right flexor sublimis muscle of anesthetized Wistar rats was mechanically injured and either treated with PRP or received no treatment. At day 2 and 5 after surgery, the animals were sacrificed and the muscle samples evaluated at molecular levels. PRP treatment increased significantly the mRNA level of the pro-inflammatory cytokines IL-1β, and TGF-β1. This phenomenon induced an increased expression at mRNA and/or protein levels of several myogenic regulatory factors such as MyoD1, Myf5 and Pax7, as well as the muscular isoform of insulin-like growth factor1 (IGF-1Eb). No effect was detected with respect to VEGF-A expression. In addition, PRP application modulated the expression of miR-133a together with its known target serum response factor (SRF); increased the phosphorylation of αB-cristallin, with a significant improvement in several apoptotic parameters (NF-κB-p65 and caspase 3), indexes of augmented cell survival. The results of the present study indicates that the effect of PRP in skeletal muscle injury repair is due both to the modulation of the molecular mediators of the inflammatory and myogenic pathways, and to the control of secondary pathways such as those regulated by myomiRNAs and heat shock proteins, which contribute to proper and effective tissue regeneration.
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Affiliation(s)
- Ivan Dimauro
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Loredana Grasso
- Unit of Internal Medicine, Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Simona Fittipaldi
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Cristina Fantini
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Neri Mercatelli
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Silvia Racca
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Stefano Geuna
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Alessia Di Gianfrancesco
- Unit of Internal Medicine, Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Daniela Caporossi
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
- * E-mail:
| | - Fabio Pigozzi
- Unit of Internal Medicine, Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Paolo Borrione
- Unit of Internal Medicine, Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
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Fittipaldi S, Dimauro I, Mercatelli N, Caporossi D. Role of exercise-induced reactive oxygen species in the modulation of heat shock protein response. Free Radic Res 2013; 48:52-70. [DOI: 10.3109/10715762.2013.835047] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Galardi S, Mercatelli N, Farace MG, Ciafrè SA. NF-kB and c-Jun induce the expression of the oncogenic miR-221 and miR-222 in prostate carcinoma and glioblastoma cells. Nucleic Acids Res 2011; 39:3892-902. [PMID: 21245048 PMCID: PMC3089483 DOI: 10.1093/nar/gkr006] [Citation(s) in RCA: 145] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
MicroRNAs (miRNAs) are potent negative regulators of gene expression involved in all aspects of cell biology. They finely modulate virtually all physiological pathways in metazoans, and are deeply implicated in all main pathologies, among which cancer. Mir-221 and miR-222, two closely related miRNAs encoded in cluster from a genomic region on chromosome X, are strongly upregulated in several forms of human tumours. In this work, we report that the ectopic modulation of NF-kB modifies miR-221/222 expression in prostate carcinoma and glioblastoma cell lines, where we had previously shown their oncogenic activity. We identify two separate distal regions upstream of miR-221/222 promoter which are bound by the NF-kB subunit p65 and drive efficient transcription in luciferase reporter assays; consistently, the site-directed mutagenesis disrupting p65 binding sites or the ectopical inhibition of NF-kB activity significantly reduce luciferase activity. In the most distal enhancer region, we also define a binding site for c-Jun, and we show that the binding of this factor cooperates with that of p65, fully accounting for the observed upregulation of miR-221/222. Thus our work uncovers an additional mechanism through which NF-kB and c-Jun, two transcription factors deeply involved in cancer onset and progression, contribute to oncogenesis, by inducing miR-221/222 transcription.
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Affiliation(s)
- Silvia Galardi
- Department of Experimental Medicine and Biochemical Sciences, University of Rome 'Tor Vergata', 00133 Rome, Italy.
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Mercatelli N, Dimauro I, Ciafré SA, Farace MG, Caporossi D. AlphaB-crystallin is involved in oxidative stress protection determined by VEGF in skeletal myoblasts. Free Radic Biol Med 2010; 49:374-82. [PMID: 20441791 DOI: 10.1016/j.freeradbiomed.2010.04.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2009] [Revised: 04/19/2010] [Accepted: 04/22/2010] [Indexed: 11/29/2022]
Abstract
Recent studies suggest that the effects of VEGF-A, the prototype VEGF ligand, may extend to a variety of cell types other than endothelial cells. The expression of VEGF-A and its main receptors, Flt-1/VEGFR-1 and KDR/Flk-1/VEGFR-2, was indeed detected in several cell types, including cardiac myocytes and regenerating myotubes. In addition to its proangiogenic activity, evidence indicates that VEGF-A can sustain skeletal muscle regeneration by enhancing the survival and migration of myogenic cells and by promoting the growth of myogenic fibers. In this study, our aim was to investigate whether VEGF could protect skeletal muscle satellite cells from apoptotic cell death triggered by reactive oxygen species and to identify the main molecular mechanisms. C2C12 mouse myoblasts, cultured in vitro in the presence of exogenous VEGF or stably transfected with a plasmid vector expressing VEGF-A, were subjected to oxidative stress and analyzed for cell growth and survival, induction of apoptosis, and molecular signaling. The results of our study demonstrated that VEGF protects C2C12 myoblasts from apoptosis induced by oxidative or hypoxic-like stress. This protection did not correlate with the modulation of the expression of VEGF receptors, but is clearly linked to the phosphorylation of the KDR/Flk-1 receptor, the activation of NF-kappaB, and/or the overexpression of the antiapoptotic protein alphaB-crystallin.
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Affiliation(s)
- Neri Mercatelli
- Department of Experimental Medicine and Biochemical Sciences, University of Rome Tor Vergata, 00133 Rome, Italy
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Mercatelli N, Coppola V, Bonci D, Miele F, Costantini A, Guadagnoli M, Bonanno E, Muto G, Frajese GV, De Maria R, Spagnoli LG, Farace MG, Ciafrè SA. The inhibition of the highly expressed miR-221 and miR-222 impairs the growth of prostate carcinoma xenografts in mice. PLoS One 2008; 3:e4029. [PMID: 19107213 PMCID: PMC2603596 DOI: 10.1371/journal.pone.0004029] [Citation(s) in RCA: 187] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2008] [Accepted: 11/23/2008] [Indexed: 01/01/2023] Open
Abstract
Background MiR-221 and miR-222 are two highly homologous microRNAs whose upregulation has been recently described in several types of human tumors, for some of which their oncogenic role was explained by the discovery of their target p27, a key cell cycle regulator. We previously showed this regulatory relationship in prostate carcinoma cell lines in vitro, underlying the role of miR-221/222 as inducers of proliferation and tumorigenicity. Methodology/Principal Findings Here we describe a number of in vivo approaches confirming our previous data. The ectopic overexpression of miR-221 is able, per se, to confer a high growth advantage to LNCaP-derived tumors in SCID mice. Consistently, the anti-miR-221/222 antagomir treatment of established subcutaneous tumors derived from the highly aggressive PC3 cell line, naturally expressing high levels of miR-221/222, reduces tumor growth by increasing intratumoral p27 amount; this effect is long lasting, as it is detectable as long as 25 days after the treatment. Furthermore, we provide evidence in favour of a clinical relevance of the role of miR-221/222 in prostate carcinoma, by showing their general upregulation in patient-derived primary cell lines, where we find a significant inverse correlation with p27 expression. Conclusions/Significance These findings suggest that modulating miR-221/222 levels may have a therapeutic potential in prostate carcinoma.
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Affiliation(s)
- Neri Mercatelli
- Department of Experimental Medicine and Biochemical Sciences, University of Rome “Tor Vergata”, Rome, Italy
| | - Valeria Coppola
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore Sanità, Rome, Italy
| | - Desirée Bonci
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore Sanità, Rome, Italy
| | - Francesca Miele
- Department of Experimental Medicine and Biochemical Sciences, University of Rome “Tor Vergata”, Rome, Italy
| | - Arianna Costantini
- Department of Biopathology, University of Rome “Tor Vergata”, Rome, Italy
| | - Marco Guadagnoli
- Department of Experimental Medicine and Biochemical Sciences, University of Rome “Tor Vergata”, Rome, Italy
| | - Elena Bonanno
- Department of Biopathology, University of Rome “Tor Vergata”, Rome, Italy
| | - Giovanni Muto
- Department of Urology (LDU, GM), S. Giovanni Bosco Hospital, Turin, Italy
| | | | - Ruggero De Maria
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore Sanità, Rome, Italy
- Mediterranean Institute of Oncology, Viagrande, Catania, Italy
| | | | - Maria Giulia Farace
- Department of Experimental Medicine and Biochemical Sciences, University of Rome “Tor Vergata”, Rome, Italy
| | - Silvia Anna Ciafrè
- Department of Experimental Medicine and Biochemical Sciences, University of Rome “Tor Vergata”, Rome, Italy
- * E-mail:
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le Sage C, Nagel R, Egan DA, Schrier M, Mesman E, Mangiola A, Anile C, Maira G, Mercatelli N, Ciafrè SA, Farace MG, Agami R. Regulation of the p27(Kip1) tumor suppressor by miR-221 and miR-222 promotes cancer cell proliferation. EMBO J 2007; 26:3699-708. [PMID: 17627278 PMCID: PMC1949005 DOI: 10.1038/sj.emboj.7601790] [Citation(s) in RCA: 610] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2007] [Accepted: 06/14/2007] [Indexed: 01/03/2023] Open
Abstract
MicroRNAs (miRNAs) are potent post-transcriptional regulators of protein coding genes. Patterns of misexpression of miRNAs in cancer suggest key functions of miRNAs in tumorigenesis. However, current bioinformatics tools do not entirely support the identification and characterization of the mode of action of such miRNAs. Here, we used a novel functional genetic approach and identified miR-221 and miR-222 (miR-221&222) as potent regulators of p27(Kip1), a cell cycle inhibitor and tumor suppressor. Using miRNA inhibitors, we demonstrate that certain cancer cell lines require high activity of miR-221&222 to maintain low p27(Kip1) levels and continuous proliferation. Interestingly, high levels of miR-221&222 appear in glioblastomas and correlate with low levels of p27(Kip1) protein. Thus, deregulated expression of miR-221&222 promotes cancerous growth by inhibiting the expression of p27(Kip1).
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Affiliation(s)
- Carlos le Sage
- Division of Tumor Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Remco Nagel
- Division of Tumor Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - David A Egan
- Division of Molecular Carcinogenesis, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Mariette Schrier
- Division of Tumor Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Elly Mesman
- Division of Tumor Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Annunziato Mangiola
- Department of Neurosurgery, Catholic University of the Sacred Heart, Rome, Italy
| | - Corrado Anile
- Department of Neurosurgery, Catholic University of the Sacred Heart, Rome, Italy
| | - Giulio Maira
- Department of Neurosurgery, Catholic University of the Sacred Heart, Rome, Italy
| | - Neri Mercatelli
- Department of Experimental Medicine and Biochemical Sciences, University of Rome Tor Vergata, Rome, Italy
| | - Silvia Anna Ciafrè
- Department of Experimental Medicine and Biochemical Sciences, University of Rome Tor Vergata, Rome, Italy
| | - Maria Giulia Farace
- Department of Experimental Medicine and Biochemical Sciences, University of Rome Tor Vergata, Rome, Italy
| | - Reuven Agami
- Division of Tumor Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Division of Tumor Biology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands. Tel.: +31 20 512 2079; Fax: +31 20 512 2029; E-mail:
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Galardi S, Mercatelli N, Giorda E, Massalini S, Frajese GV, Ciafrè SA, Farace MG. miR-221 and miR-222 expression affects the proliferation potential of human prostate carcinoma cell lines by targeting p27Kip1. J Biol Chem 2007; 282:23716-24. [PMID: 17569667 DOI: 10.1074/jbc.m701805200] [Citation(s) in RCA: 551] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
MicroRNAs are short regulatory RNAs that negatively modulate protein expression at a post-transcriptional level and are deeply involved in the pathogenesis of several types of cancers. Here we show that miR-221 and miR-222, encoded in tandem on chromosome X, are overexpressed in the PC3 cellular model of aggressive prostate carcinoma, as compared with LNCaP and 22Rv1 cell line models of slowly growing carcinomas. In all cell lines tested, we show an inverse relationship between the expression of miR-221 and miR-222 and the cell cycle inhibitor p27(Kip1). We recognize two target sites for the microRNAs in the 3' untranslated region of p27 mRNA, and we show that miR-221/222 ectopic overexpression directly results in p27 down-regulation in LNCaP cells. In those cells, we demonstrate that the ectopic overexpression of miR-221/222 strongly affects their growth potential by inducing a G(1) to S shift in the cell cycle and is sufficient to induce a powerful enhancement of their colony-forming potential in soft agar. Consistently, miR-221 and miR-222 knock-down through antisense LNA oligonucleotides increases p27(Kip1) in PC3 cells and strongly reduces their clonogenicity in vitro. Our results suggest that miR-221/222 can be regarded as a new family of oncogenes, directly targeting the tumor suppressor p27(Kip1), and that their overexpression might be one of the factors contributing to the oncogenesis and progression of prostate carcinoma through p27(Kip1) down-regulation.
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Affiliation(s)
- Silvia Galardi
- Department of Experimental Medicine and Biochemical Sciences, University of Rome Tor Vergata, Via Montpellier, 1 00133 Rome, Italy
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