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Long X, Chen W, Liu G, Hu W, Tan Q. Establishment and characterization of a skeletal myoblast cell line of grass carp (Ctenopharyngodon idellus). FISH PHYSIOLOGY AND BIOCHEMISTRY 2023; 49:1043-1061. [PMID: 37782384 DOI: 10.1007/s10695-023-01246-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 09/23/2023] [Indexed: 10/03/2023]
Abstract
Skeletal muscle myoblastic cell lines can provide a valuable new in vitro model for the exploration of the mechanisms that control skeletal muscle development and its associated molecular regulation. In this study, the skeletal muscle tissues of grass carp were digested with trypsin and collagenase I to obtain the primary myoblast cell culture. Myoblast cells were obtained by differential adherence purification and further analyzed by cryopreservation and resuscitation, chromosome analysis, immunohistochemistry, and immunofluorescence. A continuous grass carp myoblast cell line (named CIM) was established from grass carp (Ctenopharyngodon idellus) muscle and has been subcultured > 100 passages in a year and more. The CIM cells revived at 79.78-95.06% viability after 1-6 months of cryopreservation, and shared a population doubling time of 27.24 h. The number of modal chromosomes of CIM cells was 48, and the mitochondrial 12S rRNA sequence of the CIM cell line shared 99% identity with those of grass carp registered in GenBank. No microorganisms (bacteria, fungi, or mycoplasma) were detected during the whole study. The cell type of CIM cells was proven to be myoblast by immunohistochemistry of specific myogenic protein markers, including CD34, desmin, MyoD, and MyHC, as well as relative expression of key genes. And the myogenic rate and fusion index of this cell line after 10 days of induced differentiation were 8.96 ~ 9.42% and 3-24%, respectively. The telomerase activity and transfection efficiency of CIM cell line were 0.027 IU/mgprot and 23 ~ 24%, respectively. These results suggest that a myoblast cell line named CIM with normal biological function has been successfully established, which may provide a valuable tool for related in vitro studies.
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Affiliation(s)
- Xianmei Long
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China
| | - Wangwang Chen
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China
| | - Guoqing Liu
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China
| | - Wenguang Hu
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China
| | - Qingsong Tan
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China.
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China.
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Montazeri-Najababady N, Dabbaghmanesh MH, Nasimi N, Sohrabi Z, Chatrabnous N. The association between TP53 rs1625895 polymorphism and the risk of sarcopenic obesity in Iranian older adults: a case-control study. BMC Musculoskelet Disord 2021; 22:438. [PMID: 33985476 PMCID: PMC8120782 DOI: 10.1186/s12891-021-04314-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 04/30/2021] [Indexed: 01/30/2023] Open
Abstract
Background Aging and obesity are the two major global health concerns. Sarcopenia, an age-linked disease, wherein a progressive loss of muscle volume, muscle strength, and physical activity occurs. In this study we evaluated the association of TP53 rs1625895 polymorphism with the susceptibility to sarcopenic obesity in Iranian old-age subjects. Methods Total of 176 old individuals (45 sarcopenic and 131 healthy) were recruited in this research and genotyped by PCR–RFLP. BMI, Skeletal Muscle Mass Index, body composition, Handgrip Strength, Gait Speed (GS), and biochemical parameters were measured. Chi-square test was done for genotypes and alleles frequency. Linear regression was applied to find the correlation between TP53 rs1625895 polymorphism, and biochemical and anthropometric parameters. The correlation between TP53 rs1625895 and the risk of sarcopenia and sarcopenic obesity was investigated by logistic regression. Results G allele was significantly higher in sarcopenic obesity group [P = 0.037, OR (CI 95%) = 1.9 (1.03–3.5)] compared to A allele. BMI (P = 0.049) and LDL (P = 0.04) were significantly differed between genotypes when GG was compared to AA/AG genotype. The results revealed when GG genotype compared to AA/AG genotype in adjusted model for age, the risk of sarcopenic obesity [P value = 0.011, OR (CI 95%); 2.72 (1.25–5.91)] increased. Similarly, GG/AG genotype increased the risk of sarcopenic obesity [P value = 0.028, OR (CI 95%); 2.43 (1.10–5.36)] in adjusted model for age compared to AA genotype. Conclusions We suggested that TP53 rs1625895 polymorphism may increase the risk of sarcopenic obesity in Iranian population.
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Affiliation(s)
| | | | - Nasrin Nasimi
- Nutrition Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Sohrabi
- Nutrition Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nazanin Chatrabnous
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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3
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Moore JB, Tang XL, Zhao J, Fischer AG, Wu WJ, Uchida S, Gumpert AM, Stowers H, Wysoczynski M, Bolli R. Epigenetically modified cardiac mesenchymal stromal cells limit myocardial fibrosis and promote functional recovery in a model of chronic ischemic cardiomyopathy. Basic Res Cardiol 2018; 114:3. [PMID: 30446837 PMCID: PMC6335654 DOI: 10.1007/s00395-018-0710-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 10/31/2018] [Indexed: 01/01/2023]
Abstract
Preclinical investigations support the concept that donor cells more oriented towards a cardiovascular phenotype favor repair. In light of this philosophy, we previously identified HDAC1 as a mediator of cardiac mesenchymal cell (CMC) cardiomyogenic lineage commitment and paracrine signaling potency in vitro-suggesting HDAC1 as a potential therapeutically exploitable target to enhance CMC cardiac reparative capacity. In the current study, we examined the effects of pharmacologic HDAC1 inhibition, using the benzamide class 1 isoform-selective HDAC inhibitor entinostat (MS-275), on CMC cardiomyogenic lineage commitment and CMC-mediated myocardial repair in vivo. Human CMCs pre-treated with entinostat or DMSO diluent control were delivered intramyocardially in an athymic nude rat model of chronic ischemic cardiomyopathy 30 days after a reperfused myocardial infarction. Indices of cardiac function were assessed by echocardiography and left ventricular (LV) Millar conductance catheterization 35 days after treatment. Compared with naïve CMCs, entinostat-treated CMCs exhibited heightened capacity for myocyte-like differentiation in vitro and superior ability to attenuate LV remodeling and systolic dysfunction in vivo. The improvement in CMC therapeutic efficacy observed with entinostat pre-treatment was not associated with enhanced donor cell engraftment, cardiomyogenesis, or vasculogenesis, but instead with more efficient inhibition of myocardial fibrosis and greater increase in myocyte size. These results suggest that HDAC inhibition enhances the reparative capacity of CMCs, likely via a paracrine mechanism that improves ventricular compliance and contraction and augments myocyte growth and function.
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Affiliation(s)
- Joseph B Moore
- Institute of Molecular Cardiology, Division of Cardiovascular Medicine, University of Louisville, 580 S. Preston Street, Louisville, KY, 40292, USA.
| | - Xian-Liang Tang
- Institute of Molecular Cardiology, Division of Cardiovascular Medicine, University of Louisville, 580 S. Preston Street, Louisville, KY, 40292, USA
| | - John Zhao
- Institute of Molecular Cardiology, Division of Cardiovascular Medicine, University of Louisville, 580 S. Preston Street, Louisville, KY, 40292, USA
| | - Annalara G Fischer
- Institute of Molecular Cardiology, Division of Cardiovascular Medicine, University of Louisville, 580 S. Preston Street, Louisville, KY, 40292, USA
| | - Wen-Jian Wu
- Institute of Molecular Cardiology, Division of Cardiovascular Medicine, University of Louisville, 580 S. Preston Street, Louisville, KY, 40292, USA
| | - Shizuka Uchida
- Department of Medicine, Cardiovascular Innovation Institute, University of Louisville, Louisville, KY, USA
| | - Anna M Gumpert
- Institute of Molecular Cardiology, Division of Cardiovascular Medicine, University of Louisville, 580 S. Preston Street, Louisville, KY, 40292, USA
| | - Heather Stowers
- Institute of Molecular Cardiology, Division of Cardiovascular Medicine, University of Louisville, 580 S. Preston Street, Louisville, KY, 40292, USA
| | - Marcin Wysoczynski
- Institute of Molecular Cardiology, Division of Cardiovascular Medicine, University of Louisville, 580 S. Preston Street, Louisville, KY, 40292, USA
| | - Roberto Bolli
- Institute of Molecular Cardiology, Division of Cardiovascular Medicine, University of Louisville, 580 S. Preston Street, Louisville, KY, 40292, USA
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Moore JB, Zhao J, Keith MCL, Amraotkar AR, Wysoczynski M, Hong KU, Bolli R. The Epigenetic Regulator HDAC1 Modulates Transcription of a Core Cardiogenic Program in Human Cardiac Mesenchymal Stromal Cells Through a p53-Dependent Mechanism. Stem Cells 2016; 34:2916-2929. [PMID: 27501845 DOI: 10.1002/stem.2471] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 06/29/2016] [Accepted: 07/18/2016] [Indexed: 01/01/2023]
Abstract
Histone deacetylase (HDAC) regulation is an essential process in myogenic differentiation. Inhibitors targeting the activity of specific HDAC family members have been shown to enhance the cardiogenic differentiation capacity of discrete progenitor cell types; a key property of donor cell populations contributing to their afforded benefits in cardiac cell therapy applications. The influence of HDAC inhibition on cardiac-derived mesenchymal stromal cell (CMC) transdifferentiation or the role of specific HDAC family members in dictating cardiovascular cell lineage specification has not been investigated. In the current study, the consequences of HDAC inhibition on patient-derived CMC proliferation, cardiogenic program activation, and cardiovascular differentiation/cell lineage specification were investigated using pharmacologic and genetic targeting approaches. Here, CMCs exposed to the pan-HDAC inhibitor sodium butyrate exhibited induction of a cardiogenic transcriptional program and heightened expression of myocyte and endothelial lineage-specific markers when coaxed to differentiate in vitro. Further, shRNA knockdown screens revealed CMCs depleted of HDAC1 to promote the induction of a cardiogenic transcriptional program characterized by enhanced expression of cardiomyogenic- and vasculogenic-specific markers, a finding which depended on and correlated with enhanced acetylation and stabilization of p53. Cardiogenic gene activation and elevated p53 expression levels observed in HDAC1-depleted CMCs were associated with improved aptitude to assume a cardiomyogenic/vasculogenic cell-like fate in vitro. These results suggest that HDAC1 depletion-induced p53 expression alters CMC cell fate decisions and identify HDAC1 as a potential exploitable target to facilitate CMC-mediated myocardial repair in ischemic cardiomyopathy. Stem Cells 2016;34:2916-2929.
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Affiliation(s)
- Joseph B Moore
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - John Zhao
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Matthew C L Keith
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Alok R Amraotkar
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Marcin Wysoczynski
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Kyung U Hong
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Roberto Bolli
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
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5
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McKinnon T, Venier R, Dickson BC, Kabaroff L, Alkema M, Chen L, Shern JF, Yohe ME, Khan J, Gladdy RA. Kras activation in p53-deficient myoblasts results in high-grade sarcoma formation with impaired myogenic differentiation. Oncotarget 2016; 6:14220-32. [PMID: 25992772 PMCID: PMC4546462 DOI: 10.18632/oncotarget.3856] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 05/04/2015] [Indexed: 11/25/2022] Open
Abstract
While genomic studies have improved our ability to classify sarcomas, the molecular mechanisms involved in the formation and progression of many sarcoma subtypes are unknown. To better understand developmental origins and genetic drivers involved in rhabdomyosarcomagenesis, we describe a novel sarcoma model system employing primary murine p53-deficient myoblasts that were isolated and lentivirally transduced with KrasG12D. Myoblast cell lines were characterized and subjected to proliferation, anchorage-independent growth and differentiation assays to assess the effects of transgenic KrasG12D expression. KrasG12D overexpression transformed p53−/− myoblasts as demonstrated by an increased anchorage-independent growth. Induction of differentiation in parental myoblasts resulted in activation of key myogenic regulators. In contrast, Kras-transduced myoblasts had impaired terminal differentiation. p53−/− myoblasts transformed by KrasG12D overexpression resulted in rapid, reproducible tumor formation following orthotopic injection into syngeneic host hindlimbs. Pathological analysis revealed high-grade sarcomas with myogenic differentiation based on the expression of muscle-specific markers, such as Myod1 and Myog. Gene expression patterns of murine sarcomas shared biological pathways with RMS gene sets as determined by gene set enrichment analysis (GSEA) and were 61% similar to human RMS as determined by metagene analysis. Thus, our novel model system is an effective means to model high-grade sarcomas along the RMS spectrum.
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Affiliation(s)
- Timothy McKinnon
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
| | - Rosemarie Venier
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
| | - Brendan C Dickson
- Department of Pathology & Laboratory Medicine, Mount Sinai Hospital, Toronto, Canada
| | - Leah Kabaroff
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
| | - Manon Alkema
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
| | - Li Chen
- Genetics Branch, Oncogenomics Section, Center for Cancer Research, National Institute of Health, Gaithersburg, MD, USA
| | - Jack F Shern
- Genetics Branch, Oncogenomics Section, Center for Cancer Research, National Institute of Health, Gaithersburg, MD, USA
| | - Marielle E Yohe
- Genetics Branch, Oncogenomics Section, Center for Cancer Research, National Institute of Health, Gaithersburg, MD, USA
| | - Javed Khan
- Genetics Branch, Oncogenomics Section, Center for Cancer Research, National Institute of Health, Gaithersburg, MD, USA
| | - Rebecca A Gladdy
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada.,Ontario Institute for Cancer Research, Cancer Stem Cell Program, Toronto, Canada.,Department of Surgery, University of Toronto, Toronto, Canada
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6
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von Grabowiecki Y, Abreu P, Blanchard O, Palamiuc L, Benosman S, Mériaux S, Devignot V, Gross I, Mellitzer G, Gonzalez de Aguilar JL, Gaiddon C. Transcriptional activator TAp63 is upregulated in muscular atrophy during ALS and induces the pro-atrophic ubiquitin ligase Trim63. eLife 2016; 5. [PMID: 26919175 PMCID: PMC4786414 DOI: 10.7554/elife.10528] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 01/08/2016] [Indexed: 12/14/2022] Open
Abstract
Mechanisms of muscle atrophy are complex and their understanding might help finding therapeutic solutions for pathologies such as amyotrophic lateral sclerosis (ALS). We meta-analyzed transcriptomic experiments of muscles of ALS patients and mouse models, uncovering a p53 deregulation as common denominator. We then characterized the induction of several p53 family members (p53, p63, p73) and a correlation between the levels of p53 family target genes and the severity of muscle atrophy in ALS patients and mice. In particular, we observed increased p63 protein levels in the fibers of atrophic muscles via denervation-dependent and -independent mechanisms. At a functional level, we demonstrated that TAp63 and p53 transactivate the promoter and increased the expression of Trim63 (MuRF1), an effector of muscle atrophy. Altogether, these results suggest a novel function for p63 as a contributor to muscular atrophic processes via the regulation of multiple genes, including the muscle atrophy gene Trim63.
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Affiliation(s)
- Yannick von Grabowiecki
- UMR_S 1113, Molecular mechanisms of stress response and pathologies, Institut national de la santé et de la recherche médicale, Strasbourg, France.,Fédération de Recherche Translationnelle, Strasbourg University, Strasbourg, France
| | - Paula Abreu
- UMR_S 1113, Molecular mechanisms of stress response and pathologies, Institut national de la santé et de la recherche médicale, Strasbourg, France.,Fédération de Recherche Translationnelle, Strasbourg University, Strasbourg, France
| | - Orphee Blanchard
- UMR_S 1113, Molecular mechanisms of stress response and pathologies, Institut national de la santé et de la recherche médicale, Strasbourg, France.,Fédération de Recherche Translationnelle, Strasbourg University, Strasbourg, France
| | - Lavinia Palamiuc
- Fédération de Recherche Translationnelle, Strasbourg University, Strasbourg, France.,Sanford Burnham Medical Research Institute, San Diego, United States
| | - Samir Benosman
- Sanford Burnham Medical Research Institute, San Diego, United States
| | - Sophie Mériaux
- Fédération de Recherche Translationnelle, Strasbourg University, Strasbourg, France.,Sanford Burnham Medical Research Institute, San Diego, United States
| | - Véronique Devignot
- UMR_S 1113, Molecular mechanisms of stress response and pathologies, Institut national de la santé et de la recherche médicale, Strasbourg, France.,Fédération de Recherche Translationnelle, Strasbourg University, Strasbourg, France
| | - Isabelle Gross
- UMR_S 1113, Molecular mechanisms of stress response and pathologies, Institut national de la santé et de la recherche médicale, Strasbourg, France.,Fédération de Recherche Translationnelle, Strasbourg University, Strasbourg, France
| | - Georg Mellitzer
- UMR_S 1113, Molecular mechanisms of stress response and pathologies, Institut national de la santé et de la recherche médicale, Strasbourg, France.,Fédération de Recherche Translationnelle, Strasbourg University, Strasbourg, France
| | - José L Gonzalez de Aguilar
- Fédération de Recherche Translationnelle, Strasbourg University, Strasbourg, France.,Institut national de la santé et de la recherche médicale, Laboratoire SMN, Strasbourg, France
| | - Christian Gaiddon
- UMR_S 1113, Molecular mechanisms of stress response and pathologies, Institut national de la santé et de la recherche médicale, Strasbourg, France.,Fédération de Recherche Translationnelle, Strasbourg University, Strasbourg, France
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Velletri T, Xie N, Wang Y, Huang Y, Yang Q, Chen X, Chen Q, Shou P, Gan Y, Cao G, Melino G, Shi Y. P53 functional abnormality in mesenchymal stem cells promotes osteosarcoma development. Cell Death Dis 2016; 7:e2015. [PMID: 26775693 PMCID: PMC4816167 DOI: 10.1038/cddis.2015.367] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 11/13/2015] [Accepted: 11/13/2015] [Indexed: 02/07/2023]
Abstract
It has been shown that p53 has a critical role in the differentiation and functionality of various multipotent progenitor cells. P53 mutations can lead to genome instability and subsequent functional alterations and aberrant transformation of mesenchymal stem cells (MSCs). The significance of p53 in safeguarding our body from developing osteosarcoma (OS) is well recognized. During bone remodeling, p53 has a key role in negatively regulating key factors orchestrating the early stages of osteogenic differentiation of MSCs. Interestingly, changes in the p53 status can compromise bone homeostasis and affect the tumor microenvironment. This review aims to provide a unique opportunity to study the p53 function in MSCs and OS. In the context of loss of function of p53, we provide a model for two sources of OS: MSCs as progenitor cells of osteoblasts and bone tumor microenvironment components. Standing at the bone remodeling point of view, in this review we will first explain the determinant function of p53 in OS development. We will then summarize the role of p53 in monitoring MSC fidelity and in regulating MSC differentiation programs during osteogenesis. Finally, we will discuss the importance of loss of p53 function in tissue microenvironment. We expect that the information provided herein could lead to better understanding and treatment of OS.
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Affiliation(s)
- T Velletri
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University, School of Medicine, 320 Yueyang Road, Shanghai 200031, China
| | - N Xie
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University, School of Medicine, 320 Yueyang Road, Shanghai 200031, China.,Biochemistry Laboratory IDI-IRCC, Department of Experimental Medicine and Surgery, University of Rome Torvergata, Rome 00133, Italy
| | - Y Wang
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University, School of Medicine, 320 Yueyang Road, Shanghai 200031, China
| | - Y Huang
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University, School of Medicine, 320 Yueyang Road, Shanghai 200031, China
| | - Q Yang
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University, School of Medicine, 320 Yueyang Road, Shanghai 200031, China
| | - X Chen
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University, School of Medicine, 320 Yueyang Road, Shanghai 200031, China
| | - Q Chen
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University, School of Medicine, 320 Yueyang Road, Shanghai 200031, China
| | - P Shou
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University, School of Medicine, 320 Yueyang Road, Shanghai 200031, China
| | - Y Gan
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University, School of Medicine, 320 Yueyang Road, Shanghai 200031, China
| | - G Cao
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University, School of Medicine, 320 Yueyang Road, Shanghai 200031, China
| | - G Melino
- Biochemistry Laboratory IDI-IRCC, Department of Experimental Medicine and Surgery, University of Rome Torvergata, Rome 00133, Italy.,Medical Research Council, Toxicology Unit, Leicester University, Leicester LE1 9HN, UK
| | - Y Shi
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University, School of Medicine, 320 Yueyang Road, Shanghai 200031, China.,Soochow Institutes for Translational Medicine, Soochow University, Suzhou, China
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8
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Meyer SU, Krebs S, Thirion C, Blum H, Krause S, Pfaffl MW. Tumor Necrosis Factor Alpha and Insulin-Like Growth Factor 1 Induced Modifications of the Gene Expression Kinetics of Differentiating Skeletal Muscle Cells. PLoS One 2015; 10:e0139520. [PMID: 26447881 PMCID: PMC4598026 DOI: 10.1371/journal.pone.0139520] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Accepted: 09/13/2015] [Indexed: 12/19/2022] Open
Abstract
Introduction TNF-α levels are increased during muscle wasting and chronic muscle degeneration and regeneration processes, which are characteristic for primary muscle disorders. Pathologically increased TNF-α levels have a negative effect on muscle cell differentiation efficiency, while IGF1 can have a positive effect; therefore, we intended to elucidate the impact of TNF-α and IGF1 on gene expression during the early stages of skeletal muscle cell differentiation. Methodology/Principal Findings This study presents gene expression data of the murine skeletal muscle cells PMI28 during myogenic differentiation or differentiation with TNF-α or IGF1 exposure at 0 h, 4 h, 12 h, 24 h, and 72 h after induction. Our study detected significant coregulation of gene sets involved in myoblast differentiation or in the response to TNF-α. Gene expression data revealed a time- and treatment-dependent regulation of signaling pathways, which are prominent in myogenic differentiation. We identified enrichment of pathways, which have not been specifically linked to myoblast differentiation such as doublecortin-like kinase pathway associations as well as enrichment of specific semaphorin isoforms. Moreover to the best of our knowledge, this is the first description of a specific inverse regulation of the following genes in myoblast differentiation and response to TNF-α: Aknad1, Cmbl, Sepp1, Ndst4, Tecrl, Unc13c, Spats2l, Lix1, Csdc2, Cpa1, Parm1, Serpinb2, Aspn, Fibin, Slc40a1, Nrk, and Mybpc1. We identified a gene subset (Nfkbia, Nfkb2, Mmp9, Mef2c, Gpx, and Pgam2), which is robustly regulated by TNF-α across independent myogenic differentiation studies. Conclusions This is the largest dataset revealing the impact of TNF-α or IGF1 treatment on gene expression kinetics of early in vitro skeletal myoblast differentiation. We identified novel mRNAs, which have not yet been associated with skeletal muscle differentiation or response to TNF-α. Results of this study may facilitate the understanding of transcriptomic networks underlying inhibited muscle differentiation in inflammatory diseases.
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Affiliation(s)
- Swanhild U Meyer
- Physiology Weihenstephan, ZIEL Research Center for Nutrition and Food Sciences, Technische Universität München, Freising, Germany
| | - Stefan Krebs
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, University of Munich, Ludwig-Maximilians-Universität München, München, Germany
| | | | - Helmut Blum
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, University of Munich, Ludwig-Maximilians-Universität München, München, Germany
| | - Sabine Krause
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-Universität München, München, Germany
| | - Michael W Pfaffl
- Physiology Weihenstephan, ZIEL Research Center for Nutrition and Food Sciences, Technische Universität München, Freising, Germany
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9
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Ma XY, Wang JH, Wang JL, Ma CX, Wang XC, Liu FS. Malat1 as an evolutionarily conserved lncRNA, plays a positive role in regulating proliferation and maintaining undifferentiated status of early-stage hematopoietic cells. BMC Genomics 2015; 16:676. [PMID: 26335021 PMCID: PMC4559210 DOI: 10.1186/s12864-015-1881-x] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 08/26/2015] [Indexed: 12/21/2022] Open
Abstract
Background The metastasis-associated lung adenocarcinoma transcription 1 (Malat1) is a highly conserved long non-coding RNA (lncRNA) gene. Previous studies showed that Malat1 is abundantly expressed in many tissues and involves in promoting tumor growth and metastasis by modulating gene expression and target protein activities. However, little is known about the biological function and regulation mechanism of Malat1 in normal cell proliferation. Results In this study we conformed that Malat1 is highly conserved across vast evolutionary distances amongst 20 species of mammals in terms of sequence, and found that mouse Malat1 expresses in tissues of liver, kidney, lung, heart, testis, spleen and brain, but not in skeletal muscle. After treating erythroid myeloid lymphoid (EML) cells with All-trans Retinoic Acid (ATRA), we investigated the expression and regulation of Malat1 during hematopoietic differentiation, the results showed that ATRA significantly down regulates Malat1 expression during the differentiation of EML cells. Mouse LRH (Lin-Rhodaminelow Hoechstlow) cells that represent the early-stage progenitor cells show a high level of Malat1 expression, while LRB (Lin − HoechstLow RhodamineBright) cells that represent the late-stage progenitor cells had no detectable expression of Malat1. Knockdown experiment showed that depletion of Malat1 inhibits the EML cell proliferation. Along with the down regulation of Malat1, the tumor suppressor gene p53 was up regulated during the differentiation. Interestingly, we found two p53 binding motifs with help of bioinformatic tools, and the following chromatin immunoprecipitation (ChIP) test conformed that p53 acts as a transcription repressor that binds to Malat1’s promoter. Furthermore, we testified that p53 over expression in EML cells causes down regulation of Malat1. Conclusions In summary, this study indicates Malat1 plays a critical role in maintaining the proliferation potential of early-stage hematopoietic cells. In addition to its biological function, the study also uncovers the regulation pattern of Malat1 expression mediated by p53 in hematopoietic differentiation. Our research shed a light on exploring the Malat1 biological role including therapeutic significance to inhibit the proliferation potential of malignant cells.
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Affiliation(s)
- Xian-Yong Ma
- Department of Pathology, Yale University School of Medicine, New Haven, USA.
| | - Jian-Hui Wang
- Department of Pathology, Yale University School of Medicine, New Haven, USA.
| | - Jing-Lan Wang
- Department of Pathology, Yale University School of Medicine, New Haven, USA.
| | - Charles X Ma
- University of Connecticut School of Medicine, Farmington, USA.
| | - Xiao-Chun Wang
- Department of Surgical Oncology, Affiliated Hospital of Hebei University, Baoding, China.
| | - Feng-Song Liu
- College of Life Sciences, Hebei University, Baoding, China.
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10
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Abstract
DNA damage is induced in many types of cells by internal and external cell stress. When DNA is damaged, DNA Damage Response (DDR) programs are activated to repair the DNA lesions in order to preserve genomic integrity and suppress subsequent malignant transformation. Among these programs is cell cycle checkpoint that ensures cell cycle arrest and subsequent repair of the damaged DNA, apoptosis and senescence in various phases of the cell cycle. Moreover, recent studies have established the cell differentiation checkpoint, the other type of the checkpoint that is specifically activated in the course of differentiation. We will discuss the evidences that support the link between DNA damage proteins and C2C12 cell differentiation.
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Affiliation(s)
- Sara Cuesta Sancho
- Department of Cancer Genetics, Roswell Park Cancer Institute, Buffalo, NY14263, USA
| | - Toru Ouchi
- Department of Cancer Genetics, Roswell Park Cancer Institute, Buffalo, NY14263, USA
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11
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Kawesa S, Vanstone J, Tsilfidis C. A differential response to newt regeneration extract by C2C12 and primary mammalian muscle cells. Skelet Muscle 2015; 5:19. [PMID: 26090089 PMCID: PMC4471912 DOI: 10.1186/s13395-015-0044-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 05/19/2015] [Indexed: 11/24/2022] Open
Abstract
Background Dedifferentiation, a process whereby differentiated cells lose their specialized characteristics and revert to a less differentiated state, plays a key role in the regeneration process in urodele amphibians such as the red spotted newt, Notophthalmus viridescens. Dedifferentiation of fully mature tissues is generally absent in mammalian cells. Previous studies have shown that mouse C2C12 multinucleated myotubes treated with extract derived from regenerating newt forelimbs can re-enter the cell cycle, fragment into mononucleated cells, and proliferate. However, this response has been difficult to replicate. Methods We isolated extract from early newt forelimb regenerates and assessed its effects on differentiation of proliferating primary and C2C12 myoblasts. We also treated fully differentiated primary and C2C12 myotube cultures with extract and assessed cell cycle re-entry and myotube fragmentation. Results We have confirmed the results obtained in C2C12 cells and expanded these studies to also examine the effects of newt regeneration extracts on primary muscle cells. Newt extract can block differentiation of both C2C12 and primary myoblasts. Once differentiation is induced, treatment with newt extract causes cell cycle re-entry and fragmentation of C2C12 myotubes. Downregulation of p21 and muscle-specific markers is also induced. Primary myotubes also fragment in response to extract treatment, and the fragmented cells remain viable for long periods of time in culture. However, unlike C2C12 cells, primary muscle cells do not re-enter the cell cycle in response to treatment with newt extracts. Conclusions Dedifferentiation of fully mature muscle occurs during regeneration in the newt forelimb to contribute cells to the regeneration process. Our study shows that extracts derived from regenerating newt forelimbs can induce dedifferentiation, cell cycle re-entry, and fragmentation of mouse C2C12 cells but can only induce fragmentation in primary muscle cells. Electronic supplementary material The online version of this article (doi:10.1186/s13395-015-0044-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sarah Kawesa
- Ottawa Hospital Research Institute, Vision Research/Regenerative Medicine Program, 501 Smyth Road, Box 307, Ottawa, Ontario K1H 8L6 Canada ; Department of Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Road, Ottawa, Ontario K1H 8M5 Canada
| | - Jason Vanstone
- Ottawa Hospital Research Institute, Vision Research/Regenerative Medicine Program, 501 Smyth Road, Box 307, Ottawa, Ontario K1H 8L6 Canada ; Department of Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Road, Ottawa, Ontario K1H 8M5 Canada ; Current address: Children's Hospital of Eastern Ontario Research Institute, 401 Smyth Road, Ottawa, Ontario K1H 8L1 Canada
| | - Catherine Tsilfidis
- Ottawa Hospital Research Institute, Vision Research/Regenerative Medicine Program, 501 Smyth Road, Box 307, Ottawa, Ontario K1H 8L6 Canada ; Department of Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Road, Ottawa, Ontario K1H 8M5 Canada
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12
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Di Renzo L, Gratteri S, Sarlo F, Cabibbo A, Colica C, De Lorenzo A. Individually tailored screening of susceptibility to sarcopenia using p53 codon 72 polymorphism, phenotypes, and conventional risk factors. DISEASE MARKERS 2014; 2014:743634. [PMID: 25371596 PMCID: PMC4211310 DOI: 10.1155/2014/743634] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 09/22/2014] [Indexed: 01/05/2023]
Abstract
BACKGROUND AND AIM p53 activity plays a role in muscle homeostasis and skeletal muscle differentiation; all pathways that lead to sarcopenia are related to p53 activities. We investigate the allelic frequency of the TP53 codon 72 in exon 4 polymorphism in the Italian female population and the association with appendicular skeletal muscle mass index in normal weight (NW), normal weight obese (NWO), and preobese-obese (Preob-Ob) subjects. METHODS We evaluated anthropometry, body composition, and p53 polymorphism in 140 women distinguished in NW, NWO, and Preob-Ob. RESULTS *Arg/*Arg genotype increases sarcopenia risk up to 20% (*Arg/*Arg genotype OR = 1.20; 95% CI = 0.48-2.9; *proallele carriers OR = 0.83; 95% CI = 0.83-2.06). The risk of being sarcopenic for *Arg/*Arg genotype in NWO and Preob-Ob is 31% higher than NW carriers of *proallele (RR = 0,31, 95% CI = 0,15-0,66, P = 0,0079). We developed a model able to predict sarcopenia risk based on age, body fat, and p53 polymorphism. CONCLUSION Our study evidences that genotyping TP53 polymorphism could be a useful new genetic approach, in association with body composition evaluations, to assess sarcopenia risk.
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Affiliation(s)
- Laura Di Renzo
- Department of Biomedicine and Prevention, Division of Clinical Nutrition and Nutrigenomics, University of Rome “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy
- Nuova Clinica Annunziatella, 00147 Roma, Italy
| | - Santo Gratteri
- Department of Surgery and Medical Science, University “Magna Graecia”, 88100 Germaneto, Italy
| | - Francesca Sarlo
- Department of Agriculture, University of Naples “Federico II”, 80055 Portici, Italy
| | - Andrea Cabibbo
- Department of Biology, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Carmen Colica
- CNR, ISN UOS of Pharmacology, Department of Pharmacology, University “Magna Graecia”, 88100 Roccelletta di Borgia, Italy
| | - Antonino De Lorenzo
- Department of Biomedicine and Prevention, Division of Clinical Nutrition and Nutrigenomics, University of Rome “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy
- Nuova Clinica Annunziatella, 00147 Roma, Italy
- National Institute for Mediterranean Diet and Nutrigenomics (I.N.Di.M.), 87032 Amantea, Italy
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13
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Abstract
Extensive regeneration of the vertebrate body plan is found in salamander and fish species. In these organisms, regeneration takes place through reprogramming of differentiated cells, proliferation, and subsequent redifferentiation of adult tissues. Such plasticity is rarely found in adult mammalian tissues, and this has been proposed as the basis of their inability to regenerate complex structures. Despite their importance, the mechanisms underlying the regulation of the differentiated state during regeneration remain unclear. Here, we analyzed the role of the tumor-suppressor p53 during salamander limb regeneration. The activity of p53 initially decreases and then returns to baseline. Its down-regulation is required for formation of the blastema, and its up-regulation is necessary for the redifferentiation phase. Importantly, we show that a decrease in the level of p53 activity is critical for cell cycle reentry of postmitotic, differentiated cells, whereas an increase is required for muscle differentiation. In addition, we have uncovered a potential mechanism for the regulation of p53 during limb regeneration, based on its competitive inhibition by ΔNp73. Our results suggest that the regulation of p53 activity is a pivotal mechanism that controls the plasticity of the differentiated state during regeneration.
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14
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Chen H, Kolman K, Lanciloti N, Nerney M, Hays E, Robson C, Chandar N. p53 and MDM2 are involved in the regulation of osteocalcin gene expression. Exp Cell Res 2012; 318:867-76. [PMID: 22405968 DOI: 10.1016/j.yexcr.2012.02.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2009] [Revised: 02/22/2012] [Accepted: 02/23/2012] [Indexed: 11/19/2022]
Abstract
Osteocalcin (OC) is a major noncollagenous bone matrix protein and an osteoblast marker whose expression is limited to mature osteoblasts during the late differentiation stage. In previous studies we have shown osteosarcomas to lose p53 function with a corresponding loss of osteocalcin gene expression. Introduction of wild type p53 resulted in re expression of the osteocalcin gene. Using gel shift and chromatin immunoprecipitation assays, we have identified a putative p53 binding site within the rat OC promoter region and observed an increase in OC promoter activity when p53 accumulates using a CAT assay. The p53 inducible gene Mdm2 is a well-known downstream regulator of p53 levels. Our results showed a synergistic increase in the OC promoter activity when both p53 and MDM2 were transiently overexpressed. We further demonstrate that p53 is not degraded during overexpression of MDM2 protein. Increased OC expression was observed with concomitantly increased p53, VDR, and MDM2 levels in ROS17/2.8 cells during treatment with differentiation promoting (DP) media, but was significantly decreased when co-treated with DP media and the small molecule inhibitor of MDM2-p53 interaction, Nutlin-3. We have also observed a dramatic increase of the OC promoter activity in the presence of p53 and Mdm2 with inclusion of Cbfa-1 and p300 factors. Our results suggest that under some physiological conditions the oncoprotein MDM2 may cooperate with p53 to regulate the osteocalcin gene during osteoblastic differentiation.
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Affiliation(s)
- Hankui Chen
- Department of Biochemistry, Chicago College of Osteopathic Medicine, Midwestern University, Downers Grove, IL 60515, USA
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15
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Chen H, Hays E, Liboon J, Neely C, Kolman K, Chandar N. Osteocalcin gene expression is regulated by wild-type p53. Calcif Tissue Int 2011; 89:411-8. [PMID: 21964930 DOI: 10.1007/s00223-011-9533-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Accepted: 09/03/2011] [Indexed: 01/14/2023]
Abstract
The tumor-suppressor p53 is a transcription factor that regulates a number of genes in the process of cell-cycle inhibition, apoptosis, and DNA damage. Recent studies have revealed a crucial role for p53 in bone remodeling. In our previous studies we have shown that p53 is an important regulator of osteoblast differentiation. In this study we investigated the role of p53 in the regulation of human osteocalcin gene expression. We observed that osteocalcin promoter activity could be upregulated by both exogenous and endogenous p53 and downregulated by p53-specific small interfering RNA. DNA affinity immunoblotting assay showed that p53 can bind to the human osteocalcin promoter in vitro. We further identified a p53 response element within the osteocalcin promoter region using a chromatin immunoprecipitation assay. Furthermore, we observed an additive effect of p53 and VDR on the regulation of osteocalcin promoter activity. Our findings suggest that p53 may directly target the human osteocalcin gene and positively affect osteocalcin gene expression.
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Affiliation(s)
- Hankui Chen
- Department of Biochemistry, Chicago College of Osteopathic Medicine, Midwestern University, Downers Grove, IL 60515, USA
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16
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Molchadsky A, Rivlin N, Brosh R, Rotter V, Sarig R. p53 is balancing development, differentiation and de-differentiation to assure cancer prevention. Carcinogenesis 2010; 31:1501-8. [DOI: 10.1093/carcin/bgq101] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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17
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Iacovelli S, Ciuffini L, Lazzari C, Bracaglia G, Rinaldo C, Prodosmo A, Bartolazzi A, Sacchi A, Soddu S. HIPK2 is involved in cell proliferation and its suppression promotes growth arrest independently of DNA damage. Cell Prolif 2009; 42:373-84. [PMID: 19438900 DOI: 10.1111/j.1365-2184.2009.00601.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
INTRODUCTION/OBJECTIVES The serine/threonine kinase homeodomain-interacting protein kinase 2 (HIPK2) is a co-regulator of an increasing number of transcription factors and cofactors involved in DNA damage response and development. We and others have cloned HIPK2 as an interactor of the p53 oncosuppressor, and have studied the role of this interaction in cell response to stress. Nevertheless, our original cloning of HIPK2 as a p53-binding protein, was aimed at discovering partners of p53 involved in cell differentiation and development, still controversial p53 functions. To this aim, we used p53 as bait in yeast two-hybrid screening of a cDNA library from mouse embryo (day 11 postcoitus) when p53 is highly expressed. METHODS AND RESULTS In this study, we directly explored whether HIPK2 and p53 cooperate in cell differentiation. By measuring HIPK2 expression and activity in skeletal muscle and haemopoietic differentiation, we observed inverse behaviour of HIPK2 and p53--excluding cooperation activity of these two factors in this event. However, by HIPK2 depletion experiments, we showed that drastic HIPK2 suppression promotes cell-cycle arrest by induction of the cyclin-dependent kinase inhibitor p21(Waf-1/Cip-1). HIPK2 activity is independent of DNA damage and takes place in cell-cycle-arresting conditions, such as terminal differentiation, growth factor deprivation, and G(0) resting. CONCLUSIONS HIPK2 was found to be involved in cell-cycle regulation dependent on p21(Waf-1/Cip-1) and independent of DNA damage.
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Affiliation(s)
- S Iacovelli
- Department of Experimental Oncology, Regina Elena Cancer Institute, Rome, Italy
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18
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Bossi G, Mazzaro G, Porrello A, Crescenzi M, Soddu S, Sacchi A. Wild-type p53 gene transfer is not detrimental to normal cells in vivo: implications for tumor gene therapy. Oncogene 2004; 23:418-25. [PMID: 14724570 DOI: 10.1038/sj.onc.1207042] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The p53 oncosuppressor is strictly maintained in an inactive form under normal conditions, while it is post-translationally activated by a variety of stresses, enacting different protective biological functions. Since one critical issue in cancer gene therapy is tumor specificity, we asked whether the tight p53 regulation applies also to exogenously transferred p53. In principle, this type of regulation could allow p53 gene transfer in both normal and tumor cells to produce detrimental effects only in the latter ones. Here, we report that primary bone marrow cells infected with a p53 recombinant retrovirus and transplanted into irradiated mice reconstitute the hematopoietic system, with no detectable alterations in any of its compartments. Furthermore, simultaneous infection of leukemia and bone marrow cells depleted the neoplastic contamination, allowing lifelong, disease-free survival of 65% of the transplanted animals. These results show that exogenous p53 is controlled as tightly as the endogenous one, and opens the way to p53 gene therapy, without requiring tumor targeting.
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Affiliation(s)
- Gianluca Bossi
- Department of Experimental Oncology, Molecular Oncogenesis Laboratory, Regina Elena Cancer Institute, Via delle Messi d'Oro 156, Rome 00158, Italy
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19
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Nowak JA, Malowitz J, Girgenrath M, Kostek CA, Kravetz AJ, Dominov JA, Miller JB. Immortalization of mouse myogenic cells can occur without loss of p16INK4a, p19ARF, or p53 and is accelerated by inactivation of Bax. BMC Cell Biol 2004; 5:1. [PMID: 14711384 PMCID: PMC324393 DOI: 10.1186/1471-2121-5-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2003] [Accepted: 01/08/2004] [Indexed: 11/10/2022] Open
Abstract
Background Upon serial passaging of mouse skeletal muscle cells, a small number of cells will spontaneously develop the ability to proliferate indefinitely while retaining the ability to differentiate into multinucleate myotubes. Possible gene changes that could underlie myogenic cell immortalization and their possible effects on myogenesis had not been examined. Results We found that immortalization occurred earlier and more frequently when the myogenic cells lacked the pro-apoptotic protein Bax. Furthermore, myogenesis was altered by Bax inactivation as Bax-null cells produced muscle colonies with more nuclei than wild-type cells, though a lower percentage of the Bax-null nuclei were incorporated into multinucleate myotubes. In vivo, both the fast and slow myofibers in Bax-null muscles had smaller cross-sectional areas than those in wild-type muscles. After immortalization, both Bax-null and Bax-positive myogenic cells expressed desmin, retained the capacity to form multinucleate myotubes, expressed p19ARF protein, and retained p53 functions. Expression of p16INK4a, however, was found in only about half of the immortalized myogenic cell lines. Conclusions Mouse myogenic cells can undergo spontaneous immortalization via a mechanism that can include, but does not require, loss of p16INK4a, and also does not require inactivation of p19ARF or p53. Furthermore, loss of Bax, which appears to be a downstream effector of p53, accelerates immortalization of myogenic cells and alters myogenesis.
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Affiliation(s)
- Jonathan A Nowak
- Boston Biomedical Research Institute 64 Grove Street Watertown, Massachusetts 02472, USA
| | - Jonathan Malowitz
- Boston Biomedical Research Institute 64 Grove Street Watertown, Massachusetts 02472, USA
| | - Mahasweta Girgenrath
- Boston Biomedical Research Institute 64 Grove Street Watertown, Massachusetts 02472, USA
| | - Christine A Kostek
- Boston Biomedical Research Institute 64 Grove Street Watertown, Massachusetts 02472, USA
| | - Amanda J Kravetz
- Boston Biomedical Research Institute 64 Grove Street Watertown, Massachusetts 02472, USA
| | - Janice A Dominov
- Boston Biomedical Research Institute 64 Grove Street Watertown, Massachusetts 02472, USA
| | - Jeffrey Boone Miller
- Boston Biomedical Research Institute 64 Grove Street Watertown, Massachusetts 02472, USA
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20
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Zhao R, Gish K, Murphy M, Yin Y, Notterman D, Hoffman WH, Tom E, Mack DH, Levine AJ. The transcriptional program following p53 activation. COLD SPRING HARBOR SYMPOSIA ON QUANTITATIVE BIOLOGY 2003; 65:475-82. [PMID: 12760064 DOI: 10.1101/sqb.2000.65.475] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- R Zhao
- Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA
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21
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Abstract
Most genes are members of a family. It is generally believed that a gene family derives from an ancestral gene by duplication and divergence. The tumor suppressor p53 was a striking exception to this established rule. However, two new p53 homologs, p63 and p73, have recently been described [1-6]. At the sequence level, p63 and p73 are more similar to each other than each is to p53, suggesting the possibility that the ancestral gene is a gene resembling p63/p73, while p53 is phylogenetically younger [1,2].The complexity of the family has also been enriched by the alternatively spliced forms of p63 and p73, which give rise to a complex network of proteins involved in the control of cell proliferation, apoptosis and development [1,2,4,7-9]. In this review we will mainly focus on similarities and differences as well as relationships among p63, p73 and p53.
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Affiliation(s)
- S Strano
- Molecular Oncologenesis Laboratory, Regina Elena Cancer Institute, Rome, Italy
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22
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Porrello A, Cerone MA, Coen S, Gurtner A, Fontemaggi G, Cimino L, Piaggio G, Sacchi A, Soddu S. p53 regulates myogenesis by triggering the differentiation activity of pRb. J Cell Biol 2000; 151:1295-304. [PMID: 11121443 PMCID: PMC2190587 DOI: 10.1083/jcb.151.6.1295] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The p53 oncosuppressor protein regulates cell cycle checkpoints and apoptosis, but increasing evidence also indicates its involvement in differentiation and development. We had previously demonstrated that in the presence of differentiation-promoting stimuli, p53-defective myoblasts exit from the cell cycle but do not differentiate into myocytes and myotubes. To identify the pathways through which p53 contributes to skeletal muscle differentiation, we have analyzed the expression of a series of genes regulated during myogenesis in parental and dominant-negative p53 (dnp53)-expressing C2C12 myoblasts. We found that in dnp53-expressing C2C12 cells, as well as in p53(-/-) primary myoblasts, pRb is hypophosphorylated and proliferation stops. However, these cells do not upregulate pRb and have reduced MyoD activity. The transduction of exogenous TP53 or Rb genes in p53-defective myoblasts rescues MyoD activity and differentiation potential. Additionally, in vivo studies on the Rb promoter demonstrate that p53 regulates the Rb gene expression at transcriptional level through a p53-binding site. Therefore, here we show that p53 regulates myoblast differentiation by means of pRb without affecting its cell cycle-related functions.
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Affiliation(s)
- Alessandro Porrello
- Molecular Oncogenesis Laboratory, Regina Elena Cancer Institute, Center for Experimental Research, 00158 Rome, Italy
| | - Maria Antonietta Cerone
- Molecular Oncogenesis Laboratory, Regina Elena Cancer Institute, Center for Experimental Research, 00158 Rome, Italy
| | - Sabrina Coen
- Molecular Oncogenesis Laboratory, Regina Elena Cancer Institute, Center for Experimental Research, 00158 Rome, Italy
| | - Aymone Gurtner
- Molecular Oncogenesis Laboratory, Regina Elena Cancer Institute, Center for Experimental Research, 00158 Rome, Italy
| | - Giulia Fontemaggi
- Molecular Oncogenesis Laboratory, Regina Elena Cancer Institute, Center for Experimental Research, 00158 Rome, Italy
| | - Letizia Cimino
- Molecular Oncogenesis Laboratory, Regina Elena Cancer Institute, Center for Experimental Research, 00158 Rome, Italy
| | - Giulia Piaggio
- Molecular Oncogenesis Laboratory, Regina Elena Cancer Institute, Center for Experimental Research, 00158 Rome, Italy
| | - Ada Sacchi
- Molecular Oncogenesis Laboratory, Regina Elena Cancer Institute, Center for Experimental Research, 00158 Rome, Italy
| | - Silvia Soddu
- Molecular Oncogenesis Laboratory, Regina Elena Cancer Institute, Center for Experimental Research, 00158 Rome, Italy
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Cerone MA, Marchetti A, Bossi G, Blandino G, Sacchi A, Soddu S. p53 is involved in the differentiation but not in the differentiation-associated apoptosis of myoblasts. Cell Death Differ 2000; 7:506-8. [PMID: 10917737 DOI: 10.1038/sj.cdd.4400676] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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