1
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Baudic M, Murata H, Bosada FM, Melo US, Aizawa T, Lindenbaum P, van der Maarel LE, Guedon A, Baron E, Fremy E, Foucal A, Ishikawa T, Ushinohama H, Jurgens SJ, Choi SH, Kyndt F, Le Scouarnec S, Wakker V, Thollet A, Rajalu A, Takaki T, Ohno S, Shimizu W, Horie M, Kimura T, Ellinor PT, Petit F, Dulac Y, Bru P, Boland A, Deleuze JF, Redon R, Le Marec H, Le Tourneau T, Gourraud JB, Yoshida Y, Makita N, Vieyres C, Makiyama T, Mundlos S, Christoffels VM, Probst V, Schott JJ, Barc J. TAD boundary deletion causes PITX2-related cardiac electrical and structural defects. Nat Commun 2024; 15:3380. [PMID: 38643172 PMCID: PMC11032321 DOI: 10.1038/s41467-024-47739-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/08/2024] [Indexed: 04/22/2024] Open
Abstract
While 3D chromatin organization in topologically associating domains (TADs) and loops mediating regulatory element-promoter interactions is crucial for tissue-specific gene regulation, the extent of their involvement in human Mendelian disease is largely unknown. Here, we identify 7 families presenting a new cardiac entity associated with a heterozygous deletion of 2 CTCF binding sites on 4q25, inducing TAD fusion and chromatin conformation remodeling. The CTCF binding sites are located in a gene desert at 1 Mb from the Paired-like homeodomain transcription factor 2 gene (PITX2). By introducing the ortholog of the human deletion in the mouse genome, we recapitulate the patient phenotype and characterize an opposite dysregulation of PITX2 expression in the sinoatrial node (ectopic activation) and ventricle (reduction), respectively. Chromatin conformation assay performed in human induced pluripotent stem cell-derived cardiomyocytes harboring the minimal deletion identified in family#1 reveals a conformation remodeling and fusion of TADs. We conclude that TAD remodeling mediated by deletion of CTCF binding sites causes a new autosomal dominant Mendelian cardiac disorder.
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Affiliation(s)
- Manon Baudic
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France
| | - Hiroshige Murata
- The Department of Cardiovascular Medicine, Nippon Medical School Hospital, Tokyo, Japan
| | - Fernanda M Bosada
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ, Amsterdam, The Netherlands
| | - Uirá Souto Melo
- Max Planck Institute for Molecular Genetics, RG Development and Disease, 13353, Berlin, Germany
| | - Takanori Aizawa
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Pierre Lindenbaum
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France
| | - Lieve E van der Maarel
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, Amsterdam Reproduction and Development, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ, Amsterdam, The Netherlands
| | - Amaury Guedon
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France
| | - Estelle Baron
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France
| | - Enora Fremy
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France
| | - Adrien Foucal
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France
| | - Taisuke Ishikawa
- Omics Research Center, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Hiroya Ushinohama
- Department of Cardiology, Fukuoka Children's Hospital, Fukuoka, Japan
| | - Sean J Jurgens
- Cardiovascular Disease Initiative, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Experimental Cardiology, Heart Center, Amsterdam Cardiovascular Sciences, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
| | - Seung Hoan Choi
- Cardiovascular Disease Initiative, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Florence Kyndt
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France
| | - Solena Le Scouarnec
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France
| | - Vincent Wakker
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ, Amsterdam, The Netherlands
| | - Aurélie Thollet
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France
| | - Annabelle Rajalu
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France
| | - Tadashi Takaki
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
- Takeda-CiRA Joint Program for iPS Cell Applications, Fujisawa, Japan
- Department of Pancreatic Islet Cell Transplantation, National Center for Global Health and Medicine, Tokyo, Japan
| | - Seiko Ohno
- Department of Bioscience and Genetics, National Cerebral and Cardiovascular Center Research Institute, Suita, Japan
| | - Wataru Shimizu
- The Department of Cardiovascular Medicine, Nippon Medical School Hospital, Tokyo, Japan
| | - Minoru Horie
- Department of Cardiovascular Medicine, Shiga University of Medical Science, Ohtsu, Japan
| | - Takeshi Kimura
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Patrick T Ellinor
- Cardiovascular Disease Initiative, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Demoulas Center for Cardiac Arrhythmias, Massachusetts General Hospital, Boston, MA, USA
| | - Florence Petit
- Service de Génétique Clinique, CHU Lille, Hôpital Jeanne de Flandre, F-59000, Lille, France
- University of Lille, EA 7364-RADEME, F-59000, Lille, France
| | - Yves Dulac
- Unité de Cardiologie Pédiatrique, Hôpital des Enfants, F-31000, Toulouse, France
| | - Paul Bru
- Service de Cardiologie, GH La Rochelle, F-17019, La Rochelle, France
| | - Anne Boland
- Université Paris-Saclay, CEA, Centre National de Recherche en Génomique Humaine (CNRGH), 91057, Evry, France
| | - Jean-François Deleuze
- Université Paris-Saclay, CEA, Centre National de Recherche en Génomique Humaine (CNRGH), 91057, Evry, France
| | - Richard Redon
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France
| | - Hervé Le Marec
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France
| | - Thierry Le Tourneau
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France
| | - Jean-Baptiste Gourraud
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France
- European Reference Network for Rare and Low Prevalence Complex Diseases of the Heart: ERN GUARD-Heart, Amsterdam, The Netherlands
| | - Yoshinori Yoshida
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Naomasa Makita
- Omics Research Center, National Cerebral and Cardiovascular Center, Suita, Japan
- Department of Cardiology, Sapporo Teishinkai Hospital, Sapporo, Japan
| | - Claude Vieyres
- Cabinet Cardiologique, Clinique St. Joseph, F-16000, Angoulême, France
| | - Takeru Makiyama
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Department of Community Medicine Supporting System, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Stephan Mundlos
- Max Planck Institute for Molecular Genetics, RG Development and Disease, 13353, Berlin, Germany
| | - Vincent M Christoffels
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, Amsterdam Reproduction and Development, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ, Amsterdam, The Netherlands
| | - Vincent Probst
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France
- European Reference Network for Rare and Low Prevalence Complex Diseases of the Heart: ERN GUARD-Heart, Amsterdam, The Netherlands
| | - Jean-Jacques Schott
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France.
- European Reference Network for Rare and Low Prevalence Complex Diseases of the Heart: ERN GUARD-Heart, Amsterdam, The Netherlands.
| | - Julien Barc
- Nantes Université, CHU Nantes, CNRS, INSERM, l'institut du Thorax, F-44000, Nantes, France.
- European Reference Network for Rare and Low Prevalence Complex Diseases of the Heart: ERN GUARD-Heart, Amsterdam, The Netherlands.
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2
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Murray KO, Brant JO, Spradlin RA, Thome T, Laitano O, Ryan TE, Riva A, Kladde MP, Clanton TL. Exertional heat stroke causes long-term skeletal muscle epigenetic reprogramming, altered gene expression, and impaired satellite cell function in mice. Am J Physiol Regul Integr Comp Physiol 2024; 326:R160-R175. [PMID: 38047316 PMCID: PMC11283893 DOI: 10.1152/ajpregu.00226.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/26/2023] [Accepted: 11/26/2023] [Indexed: 12/05/2023]
Abstract
The effect of exertional heat stroke (EHS) exposure on skeletal muscles is incompletely understood. Muscle weakness is an early symptom of EHS but is not considered a major target of multiorgan injury. Previously, in a preclinical mouse model of EHS, we observed the vulnerability of limb muscles to a second EHS exposure, suggesting hidden processes contributing to declines in muscle resilience. Here, we evaluated the possible molecular origins of EHS-induced declines in muscle resilience. Female C57BL/6 mice [total n = 56; 28/condition, i.e., EHS and exercise control (EXC)] underwent forced wheel running at 37.5°C/40% relative humidity until symptom limitation (unconsciousness). EXC mice exercised identically at room temperature (22-23°C). After 1 mo of recovery, the following were assessed: 1) specific force and caffeine-induced contracture in soleus (SOL) and extensor digitorum longus (EDL) muscles; 2) transcriptome and DNA methylome responses in gastrocnemius (GAST); and 3) primary satellite cell function (proliferation and differentiation). There were no differences in specific force in either SOL or EDL from EXC. Only EHS solei exhibited lower caffeine sensitivity. EHS GAST exhibited higher RNA expression of genes encoding structural proteins of slow fibers, heat shock proteins, and myogenesis. A total of ∼2,500 differentially methylated regions of DNA that could potentially affect many cell functions were identified. Primary satellite cells exhibited suppressed proliferation rates but normal differentiation responses. Results demonstrate long-term changes in skeletal muscles 1 mo after EHS that could contribute to declines in muscle resilience. Skeletal muscle may join other, more recognized tissues considered vulnerable to long-term effects of EHS.NEW & NOTEWORTHY Exertional heat stroke (EHS) in mice induces long-term molecular and functional changes in limb muscle that could reflect a loss of "resilience" to further stress. The phenotype was characterized by altered caffeine sensitivity and suppressed satellite cell proliferative potential. This was accompanied by changes in gene expression and DNA methylation consistent with ongoing muscle remodeling and stress adaptation. We propose that EHS may induce a prolonged vulnerability of skeletal muscle to further stress or injury.
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Affiliation(s)
- Kevin O Murray
- Department of Applied Physiology and Kinesiology, College of Health and Human Performance, University of Florida, Gainesville, Florida, United States
| | - Jason O Brant
- Department of Biostatistics, University of Florida, Gainesville, Florida, United States
- University of Florida Health Cancer Center, University of Florida, Gainesville, Florida, United States
| | - Ray A Spradlin
- Department of Applied Physiology and Kinesiology, College of Health and Human Performance, University of Florida, Gainesville, Florida, United States
| | - Trace Thome
- Department of Applied Physiology and Kinesiology, College of Health and Human Performance, University of Florida, Gainesville, Florida, United States
| | - Orlando Laitano
- Department of Applied Physiology and Kinesiology, College of Health and Human Performance, University of Florida, Gainesville, Florida, United States
| | - Terence E Ryan
- Department of Applied Physiology and Kinesiology, College of Health and Human Performance, University of Florida, Gainesville, Florida, United States
| | - Alberto Riva
- University of Florida Health Cancer Center, University of Florida, Gainesville, Florida, United States
- Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, Florida, United States
| | - Michael P Kladde
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Florida, Gainesville, Florida, United States
- University of Florida Health Cancer Center, University of Florida, Gainesville, Florida, United States
| | - Thomas L Clanton
- Department of Applied Physiology and Kinesiology, College of Health and Human Performance, University of Florida, Gainesville, Florida, United States
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3
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Hakami MA, Hazazi A, Khan FR, Abdulaziz O, Alshaghdali K, Abalkhail A, Nassar SA, Omar BIA, Almarshadi F, Gupta G, Binshaya AS. PVT1 lncRNA in lung cancer: A key player in tumorigenesis and therapeutic opportunities. Pathol Res Pract 2024; 253:155019. [PMID: 38091883 DOI: 10.1016/j.prp.2023.155019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 01/24/2024]
Abstract
The lncRNA PVT1 has emerged as a pivotal component in the intricate landscape of cancer pathogenesis, particularly in lung cancer. PVT1, situated in the 8q24 chromosomal region, has garnered attention for its aberrant expression patterns in lung cancer, correlating with tumor progression, metastasis, and poor prognosis. Numerous studies have unveiled the diverse mechanisms PVT1 contributes to lung cancer pathogenesis. It modulates critical pathways, such as cell proliferation, apoptosis evasion, angiogenesis, and epithelial-mesenchymal transition. PVT1's interactions with other molecules, including microRNAs and proteins, amplify its oncogenic influence. Recent advancements in genomic and epigenetic analyses have also illuminated the intricate regulatory networks that govern PVT1 expression. Understanding PVT1's complex involvement in lung cancer holds substantial clinical implications. Targeting PVT1 presents a promising avenue for developing novel diagnostic biomarkers and therapeutic interventions. This abstract encapsulates the expanding knowledge regarding the oncogenic role of PVT1 in lung cancer, underscoring the significance of further research to unravel its complete mechanistic landscape and exploit its potential for improved patient outcomes.
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Affiliation(s)
- Mohammed Ageeli Hakami
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Al-Quwayiyah, Shaqra university, Riyadh, Saudi Arabia
| | - Ali Hazazi
- Department of Pathology and Laboratory Medicine, Security Forces Hospital Program, Riyadh, Saudi Arabia
| | - Farhan R Khan
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Al-Quwayiyah, Shaqra university, Riyadh, Saudi Arabia
| | - Osama Abdulaziz
- Clinical Laboratory Sciences Department, College of Applied Medical Sciences, Taif University, Makkah, Saudi Arabia
| | - Khalid Alshaghdali
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hail, P.O Box 2440, Saudi Arabia
| | - Adil Abalkhail
- Department of Public Health, College of Public Health and Health Informatics, Qassim University, Qassim, Saudi Arabia
| | - Somia A Nassar
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Alkharj 11942, Saudi Arabia; Department of Parasitology & Animal Diseases, National Research Centre, 33 Bohouth St., Dokki, Giza 12622, Egypt
| | - Bashir Ibrahim A Omar
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Al-Quwayiyah, Shaqra university, Riyadh, Saudi Arabia
| | - Fahad Almarshadi
- Department of Public Health, College of Public Health and Health Informatics, University of Ha'il, Saudi Arabia
| | - Gaurav Gupta
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, India; School of Pharmacy, Graphic Era Hill University, Dehradun 248007, India; School of Pharmacy, Suresh Gyan Vihar University, Mahal Road, Jagatpura, Jaipur, India
| | - Abdulkarim S Binshaya
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Alkharj 11942, Saudi Arabia.
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4
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Zhang B, He P, Lawrence JEG, Wang S, Tuck E, Williams BA, Roberts K, Kleshchevnikov V, Mamanova L, Bolt L, Polanski K, Li T, Elmentaite R, Fasouli ES, Prete M, He X, Yayon N, Fu Y, Yang H, Liang C, Zhang H, Blain R, Chedotal A, FitzPatrick DR, Firth H, Dean A, Bayraktar OA, Marioni JC, Barker RA, Storer MA, Wold BJ, Zhang H, Teichmann SA. A human embryonic limb cell atlas resolved in space and time. Nature 2023:10.1038/s41586-023-06806-x. [PMID: 38057666 DOI: 10.1038/s41586-023-06806-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 10/31/2023] [Indexed: 12/08/2023]
Abstract
Human limbs emerge during the fourth post-conception week as mesenchymal buds, which develop into fully formed limbs over the subsequent months1. This process is orchestrated by numerous temporally and spatially restricted gene expression programmes, making congenital alterations in phenotype common2. Decades of work with model organisms have defined the fundamental mechanisms underlying vertebrate limb development, but an in-depth characterization of this process in humans has yet to be performed. Here we detail human embryonic limb development across space and time using single-cell and spatial transcriptomics. We demonstrate extensive diversification of cells from a few multipotent progenitors to myriad differentiated cell states, including several novel cell populations. We uncover two waves of human muscle development, each characterized by different cell states regulated by separate gene expression programmes, and identify musculin (MSC) as a key transcriptional repressor maintaining muscle stem cell identity. Through assembly of multiple anatomically continuous spatial transcriptomic samples using VisiumStitcher, we map cells across a sagittal section of a whole fetal hindlimb. We reveal a clear anatomical segregation between genes linked to brachydactyly and polysyndactyly, and uncover transcriptionally and spatially distinct populations of the mesenchyme in the autopod. Finally, we perform single-cell RNA sequencing on mouse embryonic limbs to facilitate cross-species developmental comparison, finding substantial homology between the two species.
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Affiliation(s)
- Bao Zhang
- The Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Peng He
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome Campus, Hinxton, UK
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - John E G Lawrence
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
- Department of Trauma and Orthopaedics, Cambridge University Hospitals NHS Foundation Trust, Addenbrooke's Hospital, Cambridge, UK
| | - Shuaiyu Wang
- The Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Department of Obstetrics, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Elizabeth Tuck
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - Brian A Williams
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Kenny Roberts
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | | | - Lira Mamanova
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
- Enhanc3D Genomics Ltd, Cambridge, UK
| | - Liam Bolt
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
- Genomics England, London, UK
| | | | - Tong Li
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - Rasa Elmentaite
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - Eirini S Fasouli
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
- Basic Research Center, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Martin Prete
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - Xiaoling He
- John van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Nadav Yayon
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome Campus, Hinxton, UK
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - Yixi Fu
- The Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Hao Yang
- The Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Chen Liang
- The Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Hui Zhang
- Institute of Human Virology, Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Raphael Blain
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
| | - Alain Chedotal
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
- Institut de pathologie, groupe hospitalier Est, hospices civils de Lyon, Lyon, France
- University Claude Bernard Lyon 1, MeLiS, CNRS UMR5284, INSERM U1314, Lyon, France
| | | | - Helen Firth
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - Andrew Dean
- Department of Clinical Neurosciences, Cambridge University Hospitals NHS Foundation, Cambridge, UK
| | | | - John C Marioni
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome Campus, Hinxton, UK
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - Roger A Barker
- John van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Mekayla A Storer
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Barbara J Wold
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Hongbo Zhang
- The Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.
- Advanced Medical Technology Center, the First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.
- Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.
| | - Sarah A Teichmann
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK.
- Theory of Condensed Matter Group, Department of Physics, Cavendish Laboratory, University of Cambridge, Cambridge, UK.
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Dowling P, Swandulla D, Ohlendieck K. Cellular pathogenesis of Duchenne muscular dystrophy: progressive myofibre degeneration, chronic inflammation, reactive myofibrosis and satellite cell dysfunction. Eur J Transl Myol 2023; 33:11856. [PMID: 37846661 PMCID: PMC10811648 DOI: 10.4081/ejtm.2023.11856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 10/10/2023] [Indexed: 10/18/2023] Open
Abstract
Duchenne muscular dystrophy is a highly progressive muscle wasting disease of early childhood and characterized by complex pathophysiological and histopathological changes in the voluntary contractile system, including myonecrosis, chronic inflammation, fat substitution and reactive myofibrosis. The continued loss of functional myofibres and replacement with non-contractile cells, as well as extensive tissue scarring and decline in tissue elasticity, leads to severe skeletal muscle weakness. In addition, dystrophic muscles exhibit a greatly diminished regenerative capacity to counteract the ongoing process of fibre degeneration. In normal muscle tissues, an abundant stem cell pool consisting of satellite cells that are localized between the sarcolemma and basal lamina, provides a rich source for the production of activated myogenic progenitor cells that are involved in efficient myofibre repair and tissue regeneration. Interestingly, the self-renewal of satellite cells for maintaining an essential pool of stem cells in matured skeletal muscles is increased in dystrophin-deficient fibres. However, satellite cell hyperplasia does not result in efficient recovery of dystrophic muscles due to impaired asymmetric cell divisions. The lack of expression of the full-length dystrophin isoform Dp427-M, which is due to primary defects in the DMD gene, appears to affect key regulators of satellite cell polarity causing a reduced differentiation of myogenic progenitors, which are essential for myofibre regeneration. This review outlines the complexity of dystrophinopathy and describes the importance of the pathophysiological role of satellite cell dysfunction. A brief discussion of the bioanalytical usefulness of single cell proteomics for future studies of satellite cell biology is provided.
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Affiliation(s)
- Paul Dowling
- Department of Biology, Maynooth University, National University of Ireland, Maynooth, Co. Kildare, Ireland; Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co. Kildare.
| | - Dieter Swandulla
- Institute of Physiology, Medical Faculty, University of Bonn, Bonn.
| | - Kay Ohlendieck
- Department of Biology, Maynooth University, National University of Ireland, Maynooth, Co. Kildare, Ireland; Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co. Kildare.
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6
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Park SY, Liu S, Carbajal EP, Wosczyna M, Costa M, Sun H. Hexavalent chromium inhibits myogenic differentiation and induces myotube atrophy. Toxicol Appl Pharmacol 2023; 477:116693. [PMID: 37742872 PMCID: PMC10591800 DOI: 10.1016/j.taap.2023.116693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/12/2023] [Accepted: 09/14/2023] [Indexed: 09/26/2023]
Abstract
Hexavalent chromium [Cr(VI)] is extensively used in many industrial processes. Previous studies reported that Cr(VI) exposures during early embryonic development reduced body weight with musculoskeletal malformations in rodents while exposures in adult mice increased serum creatine kinase activity, a marker of muscle damage. However, the impacts of Cr(VI) on muscle differentiation remain largely unknown. Here, we report that acute exposures to Cr(VI) in mouse C2C12 myoblasts inhibit myogenic differentiation in a dose-dependent manner. Exposure to 2 μM of Cr(VI) resulted in delayed myotube formation, as evidenced by a significant decrease in myotube formation and expression of muscle-specific markers, such as muscle creatine kinase (Mck), Myocyte enhancer factor 2 (Mef2), Myomaker (Mymk) and Myomixer (Mymx). Interestingly, exposure to 5 μM of Cr(VI) completely abolished myotube formation in differentiating C2C12 cells. Moreover, the expression of key myogenic regulatory factors (MRFs) including myoblast determination protein 1 (MyoD), myogenin (MyoG), myogenic factor 5 (Myf5), and myogenic factor 6 (Myf6) were significantly altered in Cr(VI)-treated cells. The inhibitory effect of Cr(VI) on myogenic differentiation was further confirmed in freshly isolated mouse satellite cells, a stem cell population essential for adult skeletal muscle regeneration. Furthermore, Cr(VI) exposure to fully differentiated C2C12 myotubes resulted in a decrease in myotube diameter, which was exacerbated upon co-treatment with dexamethasone. Together, our results demonstrate that Cr(VI) inhibits myogenic differentiation and induces myotube atrophy in vitro.
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Affiliation(s)
- Sun Young Park
- Division of Environmental Medicine, Department of Medicine, NYU Grossman School of Medicine, New York, NY 10010, United States of America
| | - Shan Liu
- Division of Environmental Medicine, Department of Medicine, NYU Grossman School of Medicine, New York, NY 10010, United States of America
| | - Edgar Perez Carbajal
- Department of Orthopedic Surgery, NYU Grossman School of Medicine, New York, NY 10010, United States of America
| | - Michael Wosczyna
- Department of Orthopedic Surgery, NYU Grossman School of Medicine, New York, NY 10010, United States of America
| | - Max Costa
- Division of Environmental Medicine, Department of Medicine, NYU Grossman School of Medicine, New York, NY 10010, United States of America
| | - Hong Sun
- Division of Environmental Medicine, Department of Medicine, NYU Grossman School of Medicine, New York, NY 10010, United States of America.
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7
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Kim K, Blackwell DJ, Yuen SL, Thorpe MP, Johnston JN, Cornea RL, Knollmann BC. The selective RyR2 inhibitor ent-verticilide suppresses atrial fibrillation susceptibility caused by Pitx2 deficiency. J Mol Cell Cardiol 2023; 180:1-9. [PMID: 37080450 PMCID: PMC10330243 DOI: 10.1016/j.yjmcc.2023.04.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/25/2023] [Accepted: 04/17/2023] [Indexed: 04/22/2023]
Abstract
Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia and a major cause of stroke and morbidity. The strongest genetic risk factors for AF in humans are variants on chromosome 4q25, near the paired-like homeobox transcription factor 2 gene PITX2. Although mice deficient in Pitx2 (Pitx2+/-) have increased AF susceptibility, the mechanism remains controversial. Recent evidence has implicated hyperactivation of the cardiac ryanodine receptor (RyR2) in Pitx2 deficiency, which may be associated with AF susceptibility. We investigated pacing-induced AF susceptibility and spontaneous Ca2+ release events in Pitx2 haploinsufficient (+/-) mice and isolated atrial myocytes to test the hypothesis that hyperactivity of RyR2 increases susceptibility to AF, which can be prevented by a potent and selective RyR2 channel inhibitor, ent-verticilide. Compared with littermate wild-type Pitx2+/+, the frequency of Ca2+ sparks and spontaneous Ca2+ release events increased in permeabilized and intact atrial myocytes from Pitx2+/- mice. Atrial burst pacing consistently increased the incidence and duration of AF in Pitx2+/- mice. The RyR2 inhibitor ent-verticilide significantly reduced the frequency of spontaneous Ca2+ release in intact atrial myocytes and attenuated AF susceptibility with reduced AF incidence and duration. Our data demonstrate that RyR2 hyperactivity enhances SR Ca2+ leak and AF inducibility in Pitx2+/- mice via abnormal Ca2+ handling. Therapeutic targeting of hyperactive RyR2 in AF using ent-verticilide may be a viable mechanism-based approach to treat atrial arrhythmias caused by Pitx2 deficiency.
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Affiliation(s)
- Kyungsoo Kim
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Daniel J Blackwell
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Samantha L Yuen
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Madelaine P Thorpe
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, TN, USA
| | - Jeffrey N Johnston
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, TN, USA
| | - Razvan L Cornea
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Björn C Knollmann
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN, USA.
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8
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Alkhammas AH, Al-Thuwaini TM, Al-Shuhaib MBS, Khazaal NM. Association of Novel C319T Variant of PITX2 Gene 3'UTR Region With Reproductive Performance in Awassi Sheep. Bioinform Biol Insights 2023; 17:11779322231179018. [PMID: 37313032 PMCID: PMC10259137 DOI: 10.1177/11779322231179018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 05/13/2023] [Indexed: 06/15/2023] Open
Abstract
Several genes influence sheep's reproductive performance, among them the paired-like homeodomain transcription factor 2 (PITX2) gene. Thus, this study aimed to examine whether the variability within the PITX2 gene is associated with the reproductive performance of Awassi ewes. A total of 123 single-progeny ewes and 109 twin ewes were used to extract genomic DNA. An amplicon of 4 sequence fragments from exons 2, 4, 5 (upstream portion), and 5 (downstream portion) of the PITX2 gene was generated by polymerase chain reaction (PCR), 228, 304, 381, and 382 bp, respectively. Three genotypes of 382 bp amplicons were identified: CC, CT, and TT. Sequence analysis revealed a novel mutation in the CT genotype 319C > T. Statistical analysis revealed that single-nucleotide polymorphism (SNP) 319C > T was associated with reproductive performance. Single-nucleotide polymorphism 319C > T-carrying ewes had significantly (P ⩽ .01) lower litter sizes, twinning rates, lambing rates, and more days to lambing than those carrying CT and CC genotypes. Based on a logistic regression analysis, it was confirmed that the 319C > T SNP decreased litter size. Ewes with TT genotype produced fewer lambs than ewes with CT and CC genotypes. According to these results, the variant 319C> T SNP negatively affects the reproductive performance of Awassi sheep. Ewes carrying the 319C > T SNP have a lower litter size and are less prolific than those without the SNP.
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Affiliation(s)
- Ahmed H Alkhammas
- Department of Animal Production, College of Agriculture, Al-Qasim Green University, Al-Qasim, Iraq
| | - Tahreer M Al-Thuwaini
- Department of Animal Production, College of Agriculture, Al-Qasim Green University, Al-Qasim, Iraq
| | | | - Neam M Khazaal
- Department of Physiology, Biochemistry and Pharmacology, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq
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9
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Park SY, Karantenislis G, Rosen HT, Sun H. Effects of energy drinks on myogenic differentiation of murine C2C12 myoblasts. Sci Rep 2023; 13:8481. [PMID: 37231025 PMCID: PMC10213057 DOI: 10.1038/s41598-023-35338-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/16/2023] [Indexed: 05/27/2023] Open
Abstract
Energy drinks, often advertised as dietary supplements that enhance physical and mental performance, have gained increasing popularity among adolescents and athletes. Several studies on individual ingredients such as caffeine or taurine have reported either adverse or favorable influences on myogenic differentiation, a key process in muscle regeneration to repair microtears after an intense workout session. However, the impact of different energy drinks with various formulas on muscle differentiation has never been reported. This study aims to examine the in vitro effects of various energy drink brands on myogenic differentiation. Murine C2C12 myoblast cells were induced to differentiate into myotubes in the presence of one of eight energy drinks at varying dilutions. A dose-dependent inhibition of myotube formation was observed for all energy drinks, supported by reduced percentage of MHC-positive nuclei and fusion index. Moreover, expression of myogenic regulatory factor MyoG and differentiation marker MCK were also decreased. Furthermore, given the variation in formulas of different energy drinks, there were remarkable differences in the differentiation and fusion of myotubes between energy drinks. This is the first study to investigate the impact of various energy drinks on myogenic differentiation and our results suggest an inhibitory effect of energy drinks in muscle regeneration.
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Affiliation(s)
- Sun Young Park
- Division of Environmental Medicine, NYU Grossman School of Medicine, 341 East 25 Street, New York, NY, 10010, USA
| | | | - Hannah T Rosen
- Division of Environmental Medicine, NYU Grossman School of Medicine, 341 East 25 Street, New York, NY, 10010, USA
| | - Hong Sun
- Division of Environmental Medicine, NYU Grossman School of Medicine, 341 East 25 Street, New York, NY, 10010, USA.
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10
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Zhelankin AV, Iulmetova LN, Ahmetov II, Generozov EV, Sharova EI. Diversity and Differential Expression of MicroRNAs in the Human Skeletal Muscle with Distinct Fiber Type Composition. Life (Basel) 2023; 13:659. [PMID: 36983815 PMCID: PMC10056610 DOI: 10.3390/life13030659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 03/06/2023] Open
Abstract
The ratio of fast- and slow-twitch fibers in human skeletal muscle is variable and largely determined by genetic factors. In this study, we investigated the contribution of microRNA (miRNA) in skeletal muscle fiber type composition. The study involved biopsy samples of the vastus lateralis muscle from 24 male participants with distinct fiber type ratios. The miRNA study included samples from five endurance athletes and five power athletes with the predominance of slow-twitch (61.6-72.8%) and fast-twitch (69.3-80.7%) fibers, respectively. Total and small RNA were extracted from tissue samples. Total RNA sequencing (N = 24) revealed 352 differentially expressed genes between the groups with the predominance of fast- and slow-twitch muscle fibers. Small RNA sequencing showed upregulation of miR-206, miR-501-3p and miR-185-5p, and downregulation of miR-499a-5p and miR-208-5p in the group of power athletes with fast-twitch fiber predominance. Two miRtronic miRNAs, miR-208b-3p and miR-499a-5p, had strong correlations in expression with their host genes (MYH7 and MYH7B, respectively). Correlations between the expression of miRNAs and their experimentally validated messenger RNA (mRNA) targets were calculated, and 11 miRNA-mRNA interactions with strong negative correlations were identified. Two of them belonged to miR-208b-3p and miR-499a-5p, indicating their regulatory links with the expression of CDKN1A and FOXO4, respectively.
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Affiliation(s)
- Andrey V. Zhelankin
- Department of Molecular Biology and Genetics, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia
| | - Liliia N. Iulmetova
- Department of Molecular Biology and Genetics, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia
| | - Ildus I. Ahmetov
- Department of Molecular Biology and Genetics, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool L3 5AF, UK
| | - Eduard V. Generozov
- Department of Molecular Biology and Genetics, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia
| | - Elena I. Sharova
- Department of Molecular Biology and Genetics, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia
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11
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Generation of human myogenic progenitors from pluripotent stem cells for in vivo regeneration. Cell Mol Life Sci 2022; 79:406. [PMID: 35802202 PMCID: PMC9270264 DOI: 10.1007/s00018-022-04434-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/31/2022] [Accepted: 06/15/2022] [Indexed: 11/29/2022]
Abstract
Muscular dystrophy encompasses a large number of heterogeneous genetic disorders characterized by progressive and devastating muscle wasting. Cell-based replacement strategies aimed at promoting skeletal muscle regeneration represent a candidate therapeutic approach to treat muscular dystrophies. Due to the difficulties of obtaining large numbers of stem cells from a muscle biopsy as well as expanding these in vitro, pluripotent stem cells (PSCs) represent an attractive cell source for the generation of myogenic progenitors, given that PSCs can repeatedly produce large amounts of lineage-specific tissue, representing an unlimited source of cells for therapy. In this review, we focus on the progress to date on different methods for the generation of human PSC-derived myogenic progenitor cells, their regenerative capabilities upon transplantation, their potential for allogeneic and autologous transplantation, as well as the specific challenges to be considered for future therapeutic applications.
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12
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Ramírez de Acuña F, Hernandez-Torres F, Rodriguez-Outeiriño L, Dominguez JN, Matias-Valiente L, Sanchez-Fernandez C, Franco D, Aranega AE. Pitx2 Differentially Regulates the Distinct Phases of Myogenic Program and Delineates Satellite Cell Lineages During Muscle Development. Front Cell Dev Biol 2022; 10:940622. [PMID: 35874842 PMCID: PMC9298408 DOI: 10.3389/fcell.2022.940622] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 06/15/2022] [Indexed: 11/13/2022] Open
Abstract
The knowledge of the molecular mechanisms that regulate embryonic myogenesis from early myogenic progenitors to myoblasts, as well as the emergence of adult satellite stem cells (SCs) during development, are key concepts to understanding the genesis and regenerative abilities of the skeletal muscle. Several previous pieces of evidence have revealed that the transcription factor Pitx2 might be a player within the molecular pathways controlling somite-derived muscle progenitors’ fate and SC behavior. However, the role exerted by Pitx2 in the progression from myogenic progenitors to myoblasts including SC precursors remains unsolved. Here, we show that Pitx2 inactivation in uncommitted early myogenic precursors diminished cell proliferation and migration leading to muscle hypotrophy and a low number of SCs with decreased myogenic differentiation potential. However, the loss of Pitx2 in committed myogenic precursors gave rise to normal muscles with standard amounts of SCs exhibiting high levels of Pax7 expression. This SC population includes few MYF5+ SC-primed but increased amount of less proliferative miR-106b+cells, and display myogenic differentiation defects failing to undergo proper muscle regeneration. Overall our results demonstrate that Pitx2 is required in uncommitted myogenic progenitors but it is dispensable in committed precursors for proper myogenesis and reveal a role for this transcription factor in the generation of diverse SC subpopulations.
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Affiliation(s)
- Felícitas Ramírez de Acuña
- Cardiac and Skeletal Myogenesis Group, Department of Experimental Biology, University of Jaen, Jaén, Spain
- Cardiac and Skeletal Myogenesis Group, MEDINA Foundation, Center for Excellence in Research of Innovative Medicines in Andalusia, Granada, Spain
| | - Francisco Hernandez-Torres
- Cardiac and Skeletal Myogenesis Group, Department of Experimental Biology, University of Jaen, Jaén, Spain
- Cardiac and Skeletal Myogenesis Group, MEDINA Foundation, Center for Excellence in Research of Innovative Medicines in Andalusia, Granada, Spain
- Department of Biochemistry, Molecular Biology III and Immunology, School of Medicine, University of Granada, Granada, Spain
| | - Lara Rodriguez-Outeiriño
- Cardiac and Skeletal Myogenesis Group, Department of Experimental Biology, University of Jaen, Jaén, Spain
- Cardiac and Skeletal Myogenesis Group, MEDINA Foundation, Center for Excellence in Research of Innovative Medicines in Andalusia, Granada, Spain
| | - Jorge N. Dominguez
- Cardiac and Skeletal Myogenesis Group, Department of Experimental Biology, University of Jaen, Jaén, Spain
- Cardiac and Skeletal Myogenesis Group, MEDINA Foundation, Center for Excellence in Research of Innovative Medicines in Andalusia, Granada, Spain
| | - Lidia Matias-Valiente
- Cardiac and Skeletal Myogenesis Group, Department of Experimental Biology, University of Jaen, Jaén, Spain
- Cardiac and Skeletal Myogenesis Group, MEDINA Foundation, Center for Excellence in Research of Innovative Medicines in Andalusia, Granada, Spain
| | - Cristina Sanchez-Fernandez
- Cardiac and Skeletal Myogenesis Group, Department of Experimental Biology, University of Jaen, Jaén, Spain
- Cardiac and Skeletal Myogenesis Group, MEDINA Foundation, Center for Excellence in Research of Innovative Medicines in Andalusia, Granada, Spain
| | - Diego Franco
- Cardiac and Skeletal Myogenesis Group, Department of Experimental Biology, University of Jaen, Jaén, Spain
- Cardiac and Skeletal Myogenesis Group, MEDINA Foundation, Center for Excellence in Research of Innovative Medicines in Andalusia, Granada, Spain
| | - Amelia E. Aranega
- Cardiac and Skeletal Myogenesis Group, Department of Experimental Biology, University of Jaen, Jaén, Spain
- Cardiac and Skeletal Myogenesis Group, MEDINA Foundation, Center for Excellence in Research of Innovative Medicines in Andalusia, Granada, Spain
- *Correspondence: Amelia E. Aranega,
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13
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The mechanism of Megalobrama amblycephala muscle injury repair based on RNA-seq. Gene X 2022; 827:146455. [PMID: 35395368 DOI: 10.1016/j.gene.2022.146455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 01/19/2022] [Accepted: 03/25/2022] [Indexed: 11/22/2022] Open
Abstract
Skeletal muscle myogenesis and injury-induced muscle regeneration contribute to muscle formation. Skeletal muscle stem cells, termed satellite cells (SCs), proliferate to repair injured muscle. To identify the molecular mechanism of regeneration after muscle injury as well as the genes related to muscle development in fish, in this study, the immunohistochemistry and the high-throughput RNA sequencing (RNA-seq) analysis were performed after Megalobrama amblycephala muscle was injured by needle stab. The results showed that paired box7-positive (Pax7+) SCs increased, and peaked at 96 to 144 h-post injury (hpi). The 6729 differentially expressed genes (DEGs), including 2125 up-regulated and 4604 down-regulated genes were found. GO terms significantly enriched by DEGs contained intercellular connections, signaling transduction and enzyme activity. KEGG enrichment analysis showed that most of the pathways were related to immunity, metabolism and cells related molecules, including actin skeleton regulation, Epstein Barr virus infection and plaque adhesion. The WGCNA results revealed that actin cytoskeleton and lipid metabolism related genes probably played crucial roles during repair after muscle injury. Collectively, all these results will provide new insights into the molecular mechanisms underlying muscle injury repair of fish.
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14
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Yahya I, Böing M, Hockman D, Brand-Saberi B, Morosan-Puopolo G. The Emergence of Embryonic Myosin Heavy Chain during Branchiomeric Muscle Development. Life (Basel) 2022; 12:life12060785. [PMID: 35743816 PMCID: PMC9224566 DOI: 10.3390/life12060785] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/18/2022] [Accepted: 05/22/2022] [Indexed: 12/31/2022] Open
Abstract
A prerequisite for discovering the properties and therapeutic potential of branchiomeric muscles is an understanding of their fate determination, pattering and differentiation. Although the expression of differentiation markers such as myosin heavy chain (MyHC) during trunk myogenesis has been more intensively studied, little is known about its expression in the developing branchiomeric muscle anlagen. To shed light on this, we traced the onset of MyHC expression in the facial and neck muscle anlagen by using the whole-mount in situ hybridization between embryonic days E9.5 and E15.5 in the mouse. Unlike trunk muscle, the facial and neck muscle anlagen express MyHC at late stages. Within the branchiomeric muscles, our results showed variation in the emergence of MyHC expression. MyHC was first detected in the first arch-derived muscle anlagen, while its expression in the second arch-derived muscle and non-somitic neck muscle began at a later time point. Additionally, we show that non-ectomesenchymal neural crest invasion of the second branchial arch is delayed compared with that of the first brachial arch in chicken embryos. Thus, our findings reflect the timing underlying branchiomeric muscle differentiation.
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Affiliation(s)
- Imadeldin Yahya
- Department of Anatomy, Faculty of Veterinary Medicine, University of Khartoum, Khartoum 11115, Sudan;
- Department of Anatomy and Molecular Embryology, Ruhr University Bochum, 44801 Bochum, Germany; (M.B.); (B.B.-S.)
- Division of Cell Biology, Department of Human Biology, Neuroscience Institute, Faculty of Health Sciences, University of Cape Town, Cape Town 7700, South Africa;
| | - Marion Böing
- Department of Anatomy and Molecular Embryology, Ruhr University Bochum, 44801 Bochum, Germany; (M.B.); (B.B.-S.)
| | - Dorit Hockman
- Division of Cell Biology, Department of Human Biology, Neuroscience Institute, Faculty of Health Sciences, University of Cape Town, Cape Town 7700, South Africa;
| | - Beate Brand-Saberi
- Department of Anatomy and Molecular Embryology, Ruhr University Bochum, 44801 Bochum, Germany; (M.B.); (B.B.-S.)
| | - Gabriela Morosan-Puopolo
- Department of Anatomy and Molecular Embryology, Ruhr University Bochum, 44801 Bochum, Germany; (M.B.); (B.B.-S.)
- Correspondence:
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15
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Tidyman WE, Goodwin AF, Maeda Y, Klein OD, Rauen KA. MEK-inhibitor-mediated rescue of skeletal myopathy caused by activating Hras mutation in a Costello syndrome mouse model. Dis Model Mech 2022; 15:272258. [PMID: 34553752 PMCID: PMC8617311 DOI: 10.1242/dmm.049166] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 09/13/2021] [Indexed: 11/20/2022] Open
Abstract
Costello syndrome (CS) is a congenital disorder caused by heterozygous activating germline HRAS mutations in the canonical Ras/mitogen-activated protein kinase (Ras/MAPK) pathway. CS is one of the RASopathies, a large group of syndromes caused by mutations within various components of the Ras/MAPK pathway. An important part of the phenotype that greatly impacts quality of life is hypotonia. To gain a better understanding of the mechanisms underlying hypotonia in CS, a mouse model with an activating HrasG12V allele was utilized. We identified a skeletal myopathy that was due, in part, to inhibition of embryonic myogenesis and myofiber formation, resulting in a reduction in myofiber size and number that led to reduced muscle mass and strength. In addition to hyperactivation of the Ras/MAPK and PI3K/AKT pathways, there was a significant reduction in p38 signaling, as well as global transcriptional alterations consistent with the myopathic phenotype. Inhibition of Ras/MAPK pathway signaling using a MEK inhibitor rescued the HrasG12V myopathy phenotype both in vitro and in vivo, demonstrating that increased MAPK signaling is the main cause of the muscle phenotype in CS. Summary: A Costello syndrome (CS) mouse model carrying a heterozygous Hras p.G12V mutation was utilized to investigate Ras pathway dysregulation, revealing that increased MAPK signaling is the main cause of the muscle phenotype in CS.
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Affiliation(s)
- William E Tidyman
- Department of Pediatrics, University of California Davis, Sacramento, CA 95817, USA.,UC Davis MIND Institute, Sacramento, CA 95817, USA
| | - Alice F Goodwin
- Department of Orofacial Sciences and Program in Craniofacial Biology, University of California, San Francisco, CA 94143, USA
| | - Yoshiko Maeda
- Department of Pediatrics, University of California Davis, Sacramento, CA 95817, USA.,UC Davis MIND Institute, Sacramento, CA 95817, USA
| | - Ophir D Klein
- Department of Orofacial Sciences and Program in Craniofacial Biology, University of California, San Francisco, CA 94143, USA.,Department of Pediatrics and Institute for Human Genetics, University of California, San Francisco, CA 94143, USA
| | - Katherine A Rauen
- Department of Pediatrics, University of California Davis, Sacramento, CA 95817, USA.,UC Davis MIND Institute, Sacramento, CA 95817, USA
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16
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Chen MM, Zhao YP, Zhao Y, Deng SL, Yu K. Regulation of Myostatin on the Growth and Development of Skeletal Muscle. Front Cell Dev Biol 2022; 9:785712. [PMID: 35004684 PMCID: PMC8740192 DOI: 10.3389/fcell.2021.785712] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/08/2021] [Indexed: 01/01/2023] Open
Abstract
Myostatin (MSTN), a member of the transforming growth factor-β superfamily, can negatively regulate the growth and development of skeletal muscle by autocrine or paracrine signaling. Mutation of the myostatin gene under artificial or natural conditions can lead to a significant increase in muscle quality and produce a double-muscle phenotype. Here, we review the similarities and differences between myostatin and other members of the transforming growth factor-β superfamily and the mechanisms of myostatin self-regulation. In addition, we focus extensively on the regulation of myostatin functions involved in myogenic differentiation, myofiber type conversion, and skeletal muscle protein synthesis and degradation. Also, we summarize the induction of reactive oxygen species generation and oxidative stress by myostatin in skeletal muscle. This review of recent insights into the function of myostatin will provide reference information for future studies of myostatin-regulated skeletal muscle formation and may have relevance to agricultural fields of study.
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Affiliation(s)
- Ming-Ming Chen
- College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yi-Ping Zhao
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Tianjin, China
| | - Yue Zhao
- College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Shou-Long Deng
- NHC Key Laboratory of Human Disease Comparative Medicine, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, China
| | - Kun Yu
- College of Animal Science and Technology, China Agricultural University, Beijing, China
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17
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Rodriguez-Outeiriño L, Hernandez-Torres F, Ramírez-de Acuña F, Matías-Valiente L, Sanchez-Fernandez C, Franco D, Aranega AE. Muscle Satellite Cell Heterogeneity: Does Embryonic Origin Matter? Front Cell Dev Biol 2021; 9:750534. [PMID: 34722534 PMCID: PMC8554119 DOI: 10.3389/fcell.2021.750534] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/27/2021] [Indexed: 12/25/2022] Open
Abstract
Muscle regeneration is an important homeostatic process of adult skeletal muscle that recapitulates many aspects of embryonic myogenesis. Satellite cells (SCs) are the main muscle stem cells responsible for skeletal muscle regeneration. SCs reside between the myofiber basal lamina and the sarcolemma of the muscle fiber in a quiescent state. However, in response to physiological stimuli or muscle trauma, activated SCs transiently re-enter the cell cycle to proliferate and subsequently exit the cell cycle to differentiate or self-renew. Recent evidence has stated that SCs display functional heterogeneity linked to regenerative capability with an undifferentiated subgroup that is more prone to self-renewal, as well as committed progenitor cells ready for myogenic differentiation. Several lineage tracing studies suggest that such SC heterogeneity could be associated with different embryonic origins. Although it has been established that SCs are derived from the central dermomyotome, how a small subpopulation of the SCs progeny maintain their stem cell identity while most progress through the myogenic program to construct myofibers is not well understood. In this review, we synthesize the works supporting the different developmental origins of SCs as the genesis of their functional heterogeneity.
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Affiliation(s)
- Lara Rodriguez-Outeiriño
- Department of Experimental Biology, Faculty of Experimental Sciences, University of Jaén, Jaén, Spain
- Medina Foundation, Technology Park of Health Sciences, Granada, Spain
| | - Francisco Hernandez-Torres
- Medina Foundation, Technology Park of Health Sciences, Granada, Spain
- Department of Biochemistry and Molecular Biology III and Immunology, Faculty of Medicine, University of Granada, Granada, Spain
| | - F. Ramírez-de Acuña
- Department of Experimental Biology, Faculty of Experimental Sciences, University of Jaén, Jaén, Spain
- Medina Foundation, Technology Park of Health Sciences, Granada, Spain
| | - Lidia Matías-Valiente
- Department of Experimental Biology, Faculty of Experimental Sciences, University of Jaén, Jaén, Spain
- Medina Foundation, Technology Park of Health Sciences, Granada, Spain
| | - Cristina Sanchez-Fernandez
- Department of Experimental Biology, Faculty of Experimental Sciences, University of Jaén, Jaén, Spain
- Medina Foundation, Technology Park of Health Sciences, Granada, Spain
| | - Diego Franco
- Department of Experimental Biology, Faculty of Experimental Sciences, University of Jaén, Jaén, Spain
- Medina Foundation, Technology Park of Health Sciences, Granada, Spain
| | - Amelia Eva Aranega
- Department of Experimental Biology, Faculty of Experimental Sciences, University of Jaén, Jaén, Spain
- Medina Foundation, Technology Park of Health Sciences, Granada, Spain
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18
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Shi DL, Grifone R. RNA-Binding Proteins in the Post-transcriptional Control of Skeletal Muscle Development, Regeneration and Disease. Front Cell Dev Biol 2021; 9:738978. [PMID: 34616743 PMCID: PMC8488162 DOI: 10.3389/fcell.2021.738978] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 08/31/2021] [Indexed: 12/21/2022] Open
Abstract
Embryonic myogenesis is a temporally and spatially regulated process that generates skeletal muscle of the trunk and limbs. During this process, mononucleated myoblasts derived from myogenic progenitor cells within the somites undergo proliferation, migration and differentiation to elongate and fuse into multinucleated functional myofibers. Skeletal muscle is the most abundant tissue of the body and has the remarkable ability to self-repair by re-activating the myogenic program in muscle stem cells, known as satellite cells. Post-transcriptional regulation of gene expression mediated by RNA-binding proteins is critically required for muscle development during embryogenesis and for muscle homeostasis in the adult. Differential subcellular localization and activity of RNA-binding proteins orchestrates target gene expression at multiple levels to regulate different steps of myogenesis. Dysfunctions of these post-transcriptional regulators impair muscle development and homeostasis, but also cause defects in motor neurons or the neuromuscular junction, resulting in muscle degeneration and neuromuscular disease. Many RNA-binding proteins, such as members of the muscle blind-like (MBNL) and CUG-BP and ETR-3-like factors (CELF) families, display both overlapping and distinct targets in muscle cells. Thus they function either cooperatively or antagonistically to coordinate myoblast proliferation and differentiation. Evidence is accumulating that the dynamic interplay of their regulatory activity may control the progression of myogenic program as well as stem cell quiescence and activation. Moreover, the role of RNA-binding proteins that regulate post-transcriptional modification in the myogenic program is far less understood as compared with transcription factors involved in myogenic specification and differentiation. Here we review past achievements and recent advances in understanding the functions of RNA-binding proteins during skeletal muscle development, regeneration and disease, with the aim to identify the fundamental questions that are still open for further investigations.
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Affiliation(s)
- De-Li Shi
- Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Developmental Biology Laboratory, CNRS-UMR 7622, Institut de Biologie de Paris-Seine, Sorbonne University, Paris, France
| | - Raphaëlle Grifone
- Developmental Biology Laboratory, CNRS-UMR 7622, Institut de Biologie de Paris-Seine, Sorbonne University, Paris, France
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19
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Bai J, Lu Y, Zhu Y, Wang H, Yin D, Zhang H, Franco D, Zhao J. Understanding PITX2-Dependent Atrial Fibrillation Mechanisms through Computational Models. Int J Mol Sci 2021; 22:7681. [PMID: 34299303 PMCID: PMC8307824 DOI: 10.3390/ijms22147681] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/14/2021] [Accepted: 07/16/2021] [Indexed: 01/11/2023] Open
Abstract
Atrial fibrillation (AF) is a common arrhythmia. Better prevention and treatment of AF are needed to reduce AF-associated morbidity and mortality. Several major mechanisms cause AF in patients, including genetic predispositions to AF development. Genome-wide association studies have identified a number of genetic variants in association with AF populations, with the strongest hits clustering on chromosome 4q25, close to the gene for the homeobox transcription PITX2. Because of the inherent complexity of the human heart, experimental and basic research is insufficient for understanding the functional impacts of PITX2 variants on AF. Linking PITX2 properties to ion channels, cells, tissues, atriums and the whole heart, computational models provide a supplementary tool for achieving a quantitative understanding of the functional role of PITX2 in remodelling atrial structure and function to predispose to AF. It is hoped that computational approaches incorporating all we know about PITX2-related structural and electrical remodelling would provide better understanding into its proarrhythmic effects leading to development of improved anti-AF therapies. In the present review, we discuss advances in atrial modelling and focus on the mechanistic links between PITX2 and AF. Challenges in applying models for improving patient health are described, as well as a summary of future perspectives.
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Affiliation(s)
- Jieyun Bai
- College of Information Science and Technology, Jinan University, Guangzhou 510632, China; (Y.L.); (Y.Z.)
- Auckland Bioengineering Institute, University of Auckland, Auckland 1010, New Zealand
| | - Yaosheng Lu
- College of Information Science and Technology, Jinan University, Guangzhou 510632, China; (Y.L.); (Y.Z.)
| | - Yijie Zhu
- College of Information Science and Technology, Jinan University, Guangzhou 510632, China; (Y.L.); (Y.Z.)
| | - Huijin Wang
- College of Information Science and Technology, Jinan University, Guangzhou 510632, China; (Y.L.); (Y.Z.)
| | - Dechun Yin
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin 150000, China;
| | - Henggui Zhang
- Biological Physics Group, School of Physics & Astronomy, The University of Manchester, Manchester M13 9PL, UK;
| | - Diego Franco
- Department of Experimental Biology, University of Jaen, 23071 Jaen, Spain;
| | - Jichao Zhao
- Auckland Bioengineering Institute, University of Auckland, Auckland 1010, New Zealand
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20
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Karpukhina A, Galkin I, Ma Y, Dib C, Zinovkin R, Pletjushkina O, Chernyak B, Popova E, Vassetzky Y. Analysis of genes regulated by DUX4 via oxidative stress reveals potential therapeutic targets for treatment of facioscapulohumeral dystrophy. Redox Biol 2021; 43:102008. [PMID: 34030118 PMCID: PMC8163973 DOI: 10.1016/j.redox.2021.102008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 05/04/2021] [Accepted: 05/09/2021] [Indexed: 12/27/2022] Open
Abstract
Muscles of patients with facioscapulohumeral dystrophy (FSHD) are characterized by sporadic DUX4 expression and oxidative stress which is at least partially induced by DUX4 protein. Nevertheless, targeting oxidative stress with antioxidants has a limited impact on FSHD patients, and the exact role of oxidative stress in the pathology of FSHD, as well as its interplay with the DUX4 expression, remain unclear. Here we set up a screen for genes that are upregulated by DUX4 via oxidative stress with the aim to target these genes rather than the oxidative stress itself. Immortalized human myoblasts expressing DUX4 (MB135-DUX4) have an increased level of reactive oxygen species (ROS) and exhibit differentiation defects which can be reduced by treating the cells with classic (Tempol) or mitochondria-targeted antioxidants (SkQ1). The transcriptome analysis of antioxidant-treated MB135 and MB135-DUX4 myoblasts allowed us to identify 200 genes with expression deregulated by DUX4 but normalized upon antioxidant treatment. Several of these genes, including PITX1, have been already associated with FSHD and/or muscle differentiation. We confirmed that PITX1 was indeed deregulated in MB135-DUX4 cells and primary FSHD myoblasts and revealed a redox component in PITX1 regulation. PITX1 silencing partially reversed the differentiation defects of MB135-DUX4 myoblasts. Our approach can be used to identify and target redox-dependent genes involved in human diseases. Double homeobox transcription factor DUX4 misregulates hundreds of genes and induces oxidative stress in human myoblasts. ROS, notably those of mitochondrial origin, contribute to the differentiation defects in myoblasts expressing DUX4. A subset of genes is deregulated by DUX4 indirectly, via oxidative stress. A strategy to identify the genes deregulated by DUX4 via oxidative stress was developed. PITX1 is deregulated by DUX4 via oxidative stress and can be targeted to improve myogenesis in DUX4-expressing myoblasts.
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Affiliation(s)
- Anna Karpukhina
- CNRS UMR9018, Université Paris-Saclay, Institut Gustave Roussy, 94805, Villejuif, France; Koltzov Institute of Developmental Biology, 117334, Moscow, Russia; Faculty of Bioengineering and Bioinformatics, MSU, 119992, Moscow, Russia
| | - Ivan Galkin
- Belozersky Institute of Physico-Chemical Biology, 119992, Moscow, Russia
| | - Yinxing Ma
- CNRS UMR9018, Université Paris-Saclay, Institut Gustave Roussy, 94805, Villejuif, France
| | - Carla Dib
- CNRS UMR9018, Université Paris-Saclay, Institut Gustave Roussy, 94805, Villejuif, France
| | - Roman Zinovkin
- Belozersky Institute of Physico-Chemical Biology, 119992, Moscow, Russia
| | - Olga Pletjushkina
- Belozersky Institute of Physico-Chemical Biology, 119992, Moscow, Russia
| | - Boris Chernyak
- Belozersky Institute of Physico-Chemical Biology, 119992, Moscow, Russia
| | - Ekaterina Popova
- Belozersky Institute of Physico-Chemical Biology, 119992, Moscow, Russia
| | - Yegor Vassetzky
- CNRS UMR9018, Université Paris-Saclay, Institut Gustave Roussy, 94805, Villejuif, France; Koltzov Institute of Developmental Biology, 117334, Moscow, Russia.
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21
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Chen M, Zhang L, Guo Y, Liu X, Song Y, Li X, Ding X, Guo H. A novel lncRNA promotes myogenesis of bovine skeletal muscle satellite cells via PFN1-RhoA/Rac1. J Cell Mol Med 2021; 25:5988-6005. [PMID: 33942976 PMCID: PMC8256363 DOI: 10.1111/jcmm.16427] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 02/13/2021] [Accepted: 02/18/2021] [Indexed: 12/13/2022] Open
Abstract
Myogenesis, the process of skeletal muscle formation, is a highly coordinated multistep biological process. Accumulating evidence suggests that long non-coding RNAs (lncRNAs) are emerging as a gatekeeper in myogenesis. Up to now, most studies on muscle development-related lncRNAs are mainly focussed on humans and mice. In this study, a novel muscle highly expressed lncRNA, named lnc23, localized in nucleus, was found differentially expressed in different stages of embryonic development and myogenic differentiation. The knockdown and over-expression experiments showed that lnc23 positively regulated the myogenic differentiation of bovine skeletal muscle satellite cells. Then, TMT 10-plex labelling quantitative proteomics was performed to screen the potentially regulatory proteins of lnc23. Results indicated that lnc23 was involved in the key processes of myogenic differentiation such as cell fusion, further demonstrated that down-regulation of lnc23 may inhibit myogenic differentiation by reducing signal transduction and cell fusion among cells. Furthermore, RNA pulldown/LC-MS and RIP experiment illustrated that PFN1 was a binding protein of lnc23. Further, we also found that lnc23 positively regulated the protein expression of RhoA and Rac1, and PFN1 may negatively regulate myogenic differentiation and the expression of its interacting proteins RhoA and Rac1. Hence, we support that lnc23 may reduce the inhibiting effect of PFN1 on RhoA and Rac1 by binding to PFN1, thereby promoting myogenic differentiation. In short, the novel identified lnc23 promotes myogenesis of bovine skeletal muscle satellite cells via PFN1-RhoA/Rac1.
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Affiliation(s)
- Mingming Chen
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy HusbandryCollege of Animal Science and Veterinary MedicineTianjin Agricultural UniversityTianjinChina
| | - Linlin Zhang
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy HusbandryCollege of Animal Science and Veterinary MedicineTianjin Agricultural UniversityTianjinChina
| | - Yiwen Guo
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy HusbandryCollege of Animal Science and Veterinary MedicineTianjin Agricultural UniversityTianjinChina
| | - Xinfeng Liu
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy HusbandryCollege of Animal Science and Veterinary MedicineTianjin Agricultural UniversityTianjinChina
| | - Yingshen Song
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy HusbandryCollege of Animal Science and Veterinary MedicineTianjin Agricultural UniversityTianjinChina
| | - Xin Li
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy HusbandryCollege of Animal Science and Veterinary MedicineTianjin Agricultural UniversityTianjinChina
| | - Xiangbin Ding
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy HusbandryCollege of Animal Science and Veterinary MedicineTianjin Agricultural UniversityTianjinChina
| | - Hong Guo
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy HusbandryCollege of Animal Science and Veterinary MedicineTianjin Agricultural UniversityTianjinChina
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22
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Chronological Expression of PITX2 and SIX1 Genes and the Association between Their Polymorphisms and Chicken Meat Quality Traits. Animals (Basel) 2021; 11:ani11020445. [PMID: 33567786 PMCID: PMC7916052 DOI: 10.3390/ani11020445] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/29/2021] [Accepted: 02/03/2021] [Indexed: 12/19/2022] Open
Abstract
Meat quality is closely related to the development of skeletal muscle, in which PITX2 and SIX1 genes play important regulatory roles. The present study firstly provided the data of chronological expression files of PITX2 and SIX1 genes in the post-hatching pectoral muscle and analyzed the association of their polymorphisms with the meat quality traits of Wuliang Mountain Black-bone (WLMB) chickens. The results showed that both PITX2 and SIX1 genes were weakly expressed in the second and third weeks, and then increased significantly from the third week to the fourth week. Furthermore, there was a significant positive correlation between the expression levels of the two genes. Twelve and one SNPs were detected in the chicken PITX2 and SIX1 genes, respectively, of which four SNPs (g.9830C > T, g.10073C > T, g.13335G > A, g.13726A > G) of the PITX2 gene and one SNP (g.564G > A) of the SIX1 gene were significantly associated with chicken meat quality traits. For the PITX2 gene, chickens with the CT genotype of g.9830C > T showed the highest meat color L*, shear force (SF), pH, and the lowest electrical conductivity (EC), and drip loss (DL) (p < 0.05 or p < 0.01); chickens with the CC genotype of g.10073C > T had the lowest L*, pH, and the highest DL (p < 0.01). For the SIX1 gene, chickens with the GG genotype of g.564G > A had the highest (p < 0.05) SF and pH. Furthermore, pH had a significant correlation with all the other meat quality traits. The current study could contribute to the research of regulatory mechanisms of meat quality and lay the foundation for improving meat quality based on marker-assisted selection in chickens.
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23
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Qin Y, Gao P, Yu S, Li J, Huang Y, Jia D, Tang Z, Li P, Liu F, Liu M. A large deletion spanning PITX2 and PANCR in a Chinese family with Axenfeld-Rieger syndrome. Mol Vis 2020; 26:670-678. [PMID: 33088171 PMCID: PMC7553719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 10/02/2020] [Indexed: 11/16/2022] Open
Abstract
Purpose To identify the genetic cause in a four-generation Chinese family with Axenfeld-Rieger syndrome (ARS). Methods The family members received clinical examinations of the eye, tooth, periumbilical skin, and heart. Sanger sequencing and whole-exome sequencing (WES) were performed to screen potential mutations. The genomic deletion region around the PITX2 gene was estimated from single nucleotide polymorphism (SNP) data from WES and then confirmed with "quantitative PCR (qPCR) using a set of primers. The DNA breakpoint was further identified with long-range PCR and Sanger sequencing. Results Symptoms including anterior segment dysplasia of the eye (iris dysplasia, multiple pupils, and posterior embryotoxon), dental dysplasia, and periumbilical skin redundancy were present in all of the affected individuals. Three of them had glaucoma. Corneal abnormalities (inferior sclerocornea, corneal endothelial dystrophy, and central corneal scar) were seen in most of the affected individuals. Cataract, limited eye movement, electrocardiographic abnormalities, intellectual disability, and recurrent miscarriages were observed in some of the affected individuals. No mutations in the coding and exon-intron adjacent regions of the PITX2 and FOXC1 genes were identified with Sanger sequencing. According to the SNP data from WES, we suspected that there might be a deletion region (at most 1.6 Mb) around the PITX2 gene. With the use of qPCR and long-range PCR, we identified a 53,840 bp deletion (chr4: 111,535,454-111,588,933) spanning PITX2 and PANCR. The genomic deletion cosegregated with the major ARS symptoms observed in the family members. Conclusions With the help of WES, qPCR, and long-range PCR, we identified a genomic deletion encompassing PITX2 and the adjacent noncoding gene PANCR in a Chinese family with ARS. The clinical features of the affected individuals are reported. This work may broaden understanding of the phenotypic and mutational spectrums related to ARS.
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Affiliation(s)
- Yayun Qin
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Pang Gao
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Shanshan Yu
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Jingzhen Li
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Yuwen Huang
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Danna Jia
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Zhaohui Tang
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Pengcheng Li
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Fei Liu
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Mugen Liu
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P.R. China
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24
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Sun E, Karaoz E. Can Wharton jelly derived or adipose tissue derived mesenchymal stem cell can be a treatment option for duchenne muscular dystrophy? Answers as transcriptomic aspect. AMERICAN JOURNAL OF STEM CELLS 2020; 9:57-67. [PMID: 32929392 PMCID: PMC7486554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
INTRODUCTION Mesenchymal stem cells (MSCs) are able to differentiate into several cell lineages including skeletal muscle. In addition to their differentiation capacities, they have the ability to transfer their content genomic information horizontally through their exosomes and fusion abilities, as we have shown in our previous clinic study on Duchenne Muscular Dystrophy (DMD) patients, dystrophin expression increased after MSC treatment. Therefore, this study aimed to compare the transcriptomic properties of Wharton's jelly derived (WJ-) MSC and Adipose tissue (AT-) derived MSC, which are the two most preferred sources in MSC treatments applied in DMD. METHODS Both MSC cell lines obtained from ATCC (PCS-500-010; PCS-500-011) were characterized by flow cytometry then WJ-MSC and AT-MSC cell lines were sequenced via RNA-SEQ. R language was used to obtain the differentially expressed genes (DEGs) and differentially expressed miRNAs, respectively. Additionally, in order to support the results of our study, a gene expression profile data set of DMD patients (GSE1004) were acquired from Gene Expression Omnibus (GEO) database. RESULTS Here, we demonstrated that activated WNT signaling and downregulated TGF-β pathways under the control of decreased mir-24 which are involved in myogenic differentiation are differentially expressed in WJ-MSC. We have shown that the expression of mir-199a-5p, which is known to increase in exosomes of DMD patients, is less in WJ-MSC. Additionally, we have shown activated PI3K/Akt pathway, which is controlling mitochondria transfer via Tunnelling Nanotube as a new perspective in cellular therapies in myodegenerative diseases, in WJ-MSC more than in AT-MSCs. CONCLUSION Summing up, WJ-MSC, which we recommend as an appropriate source candidate due to its immune-regulation properties, stands forward as a preferable source in the cellular treatment of DMD patients due to its transcriptomic aspect.
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Affiliation(s)
- Eda Sun
- Histology and Embriology Department, Faculty of Medicine, İstinye Universityİstanbul, Turkey
- Center for Stem Cell and Tissue Engineering Research & Practice, İstinye Universityİstanbul, Turkey
| | - Erdal Karaoz
- Histology and Embriology Department, Faculty of Medicine, İstinye Universityİstanbul, Turkey
- Center for Stem Cell and Tissue Engineering Research & Practice, İstinye Universityİstanbul, Turkey
- Center for Regenerative Medicine and Stem Cell Research and Manufacturing, Liv Hospitalİstanbul, Turkey
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25
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Isolation and Culture of Quiescent Skeletal Muscle Satellite Cells. Methods Mol Biol 2020. [PMID: 32474874 DOI: 10.1007/978-1-0716-0655-1_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
It has been shown that freshly isolated satellite cells from adult muscle constitute a stem cell-like population that exhibits more efficient engraftment and self-renewal activity in regenerating muscle than myoblast. Thus, purification of pure populations of quiescent satellite cells from adult skeletal muscle is highly necessary, not only for understanding the biology of satellite cells and myoblasts but also for improving cell-based therapies for muscle regeneration. This chapter describes a basic protocol used in our laboratory to isolate quiescent muscle satellite cells from adult skeletal muscle by enzymatic dissociation followed by a sequential magnetic-activated cell sorting (MACS). This method is cheap and fast providing and alternative procedure to other purification methods that require fluorescence-activated cell sorting (FACS) machines. Freshly isolated quiescent satellite cells purified by this method can be used in a broad range of experiments including cell transplantation for satellite cell self-renewal experiments or cell therapies.
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26
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Agarwal AK, Tunison K, Mitsche MA, McDonald JG, Garg A. Insights into lipid accumulation in skeletal muscle in dysferlin-deficient mice. J Lipid Res 2019; 60:2057-2073. [PMID: 31653658 PMCID: PMC6889719 DOI: 10.1194/jlr.ra119000399] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/21/2019] [Indexed: 12/15/2022] Open
Abstract
Loss of dysferlin (DYSF) protein in humans results in limb-girdle muscular dystrophy 2B, characterized by progressive loss of muscles in the distal limbs with impaired locomotion. The DYSF-null (Bla/J) mouse develops severe steatotic muscles upon aging. Here, we report a marked increase in adipocytes, especially in the psoas and gluteus muscles but not in the soleus and tibialis anterior muscles in aged Bla/J mice compared with WT mice. There was a robust upregulation in the mRNA expression of enzymes involved in lipogenesis and triacylglycerol (TAG) synthesis pathways in the steatotic skeletal muscles. Lipidomic analysis of the steatotic skeletal muscles revealed an increase in several molecular species of TAG, although it is unclear whether it was at the expense of phosphatidylcholine and phosphatidylserine. The adipocytes in steatotic muscles were extramyocellular, as determined by the increased expression of caveolin 1 (a cellular marker for adipocytes) and lipid-droplet protein, perilipin 1. This increase in adipocytes occured as a consequence of the loss of myocytes.
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Affiliation(s)
- Anil K Agarwal
- Division of Nutrition and Metabolic Diseases Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - Katie Tunison
- Division of Nutrition and Metabolic Diseases Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - Matthew A Mitsche
- Center for Human Nutrition, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - Jeffrey G McDonald
- Center for Human Nutrition, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - Abhimanyu Garg
- Division of Nutrition and Metabolic Diseases Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390
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27
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Hong L, Gu T, He Y, Zhou C, Hu Q, Wang X, Zheng E, Huang S, Xu Z, Yang J, Yang H, Li Z, Liu D, Cai G, Wu Z. Genome-Wide Analysis of Circular RNAs Mediated ceRNA Regulation in Porcine Embryonic Muscle Development. Front Cell Dev Biol 2019; 7:289. [PMID: 31803743 PMCID: PMC6877547 DOI: 10.3389/fcell.2019.00289] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 11/05/2019] [Indexed: 12/19/2022] Open
Abstract
Many circular RNAs (circRNAs) have been discovered in various tissues and cell types in pig. However, the temporal expression pattern of circRNAs during porcine embryonic muscle development remains unclear. Here, we present a panorama view of circRNA expression in embryonic muscle development at 33-, 65-, and 90-days post-coitus (dpc) from Duroc pigs. An unbiased analysis reveals that more than 5,000 circRNAs specifically express in embryonic muscle development. The amount and complexity of circRNA expression is most pronounced in skeletal muscle at day 33 of gestation. Our circRNAs annotation analyses show that “hot-spot” genes produce multiple circRNA isoforms and RNA binding protein (RBPs) may regulate the biogenesis of circRNAs. Furthermore, we observed that host genes of differentially expressed circRNA across porcine muscle development are enriched in skeletal muscle function. A competing endogenous RNA (ceRNA) network analysis of circRNAs reveals that circRNAs regulate muscle gene expression by functioning as miRNA sponges. Finally, our experimental validation demonstrated that circTUT7 regulate the expression of HMG20B in a ceRNA mechanism. Our analyses show that circRNAs are dynamically expressed and interacting with muscle genes through ceRNA manner, suggesting their critical functions in embryonic skeletal muscle development.
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Affiliation(s)
- Linjun Hong
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Ting Gu
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Yanjuan He
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Chen Zhou
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Qun Hu
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Xingwang Wang
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Enqin Zheng
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Sixiu Huang
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Zheng Xu
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Jie Yang
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Huaqiang Yang
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Zicong Li
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Dewu Liu
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Gengyuan Cai
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Zhenfang Wu
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
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28
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Rosero Salazar DH, Carvajal Monroy PL, Wagener FADTG, Von den Hoff JW. Orofacial Muscles: Embryonic Development and Regeneration after Injury. J Dent Res 2019; 99:125-132. [PMID: 31675262 PMCID: PMC6977159 DOI: 10.1177/0022034519883673] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Orofacial congenital defects such as cleft lip and/or palate are associated with impaired muscle regeneration and fibrosis after surgery. Also, other orofacial reconstructions or trauma may end up in defective muscle regeneration and fibrosis. The aim of this review is to discuss current knowledge on the development and regeneration of orofacial muscles in comparison to trunk and limb muscles. The orofacial muscles include the tongue muscles and the branchiomeric muscles in the lower face. Their main functions are chewing, swallowing, and speech. All orofacial muscles originate from the mesoderm of the pharyngeal arches under the control of cranial neural crest cells. Research in vertebrate models indicates that the molecular regulation of orofacial muscle development is different from that of trunk and limb muscles. In addition, the regenerative ability of orofacial muscles is lower, and they develop more fibrosis than other skeletal muscles. Therefore, specific approaches need to be developed to stimulate orofacial muscle regeneration. Regeneration may be stimulated by growth factors such fibroblast growth factors and hepatocyte growth factor, while fibrosis may be reduced by targeting the transforming growth factor β1 (TGFβ1)/myofibroblast axis. New approaches that combine these 2 aspects will improve the surgical treatment of orofacial muscle defects.
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Affiliation(s)
- D H Rosero Salazar
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - P L Carvajal Monroy
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Centre, Nijmegen, the Netherlands.,Department of Oral and Maxillofacial Surgery, Special Dental Care and Orthodontics, Erasmus Medical Center, Rotterdam, the Netherlands
| | - F A D T G Wagener
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - J W Von den Hoff
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Centre, Nijmegen, the Netherlands
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29
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Li YX, Feng XP, Wang HL, Meng CH, Zhang J, Qian Y, Zhong JF, Cao SX. Transcriptome analysis reveals corresponding genes and key pathways involved in heat stress in Hu sheep. Cell Stress Chaperones 2019; 24:1045-1054. [PMID: 31428918 PMCID: PMC6882975 DOI: 10.1007/s12192-019-01019-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 06/17/2019] [Accepted: 06/20/2019] [Indexed: 12/20/2022] Open
Abstract
Heat stress (HS) seriously affects animal performance. In view of global warming, it is essential to understand the regulatory mechanisms by which animals adapt to heat stress. In this study, our aim was to explore the genes and pathways involved in heat stress in sheep. To this end, we used transcriptome analysis to understand the molecular responses to heat stress and thereby identify means to protect sheep from heat shock. To obtain an overview of the effects of heat stress on sheep, we used the hypothalamus for transcriptome sequencing and identified differentially expressed genes (DEGs; false discovery rate (FDR) < 0.01; fold change > 2) during heat stress. A total of 1423 DEGs (1122 upregulated and 301 downregulated) were identified and classified into Gene Ontology (GO) categories and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. Heat stress triggered dramatic and complex alterations in gene expression in the hypothalamus. We hypothesized that heat stress induced apoptosis and dysfunction in cells and vital organs and affected growth, development, reproduction, and circadian entrainment via the calcium signaling pathway, which influences ribosome assembly and function. Real-time PCR was used to evaluate the expression of the genes regulating important biological functions or whose expression profiles were significantly changed after acute heat stress (FDR < 0.01; fold change > 4), and the results showed that the expression patterns of these genes were consistent with the results of transcriptome sequencing, indicating that the credibility of the sequencing results. Our data indicated that heat stress induced calcium dyshomeostasis, blocked biogenesis, caused ROS accumulation, impaired the antioxidant system and innate defense, and induced apoptosis through the P53 signaling pathway activated by PEG3, decreased growth and development, and enhanced organ damage. These data is very important and helpful to elucidate the molecular mechanism of heat stress and finally to find ways to deal with heat stress damage in sheep.
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Affiliation(s)
- Y X Li
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
- The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing, 210014, China
- Key Laboratory of Crop and Animal Integrated Farming, Ministry of Agriculture, Nanjing, 210014, China
| | - X P Feng
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
- The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing, 210014, China
- Key Laboratory of Crop and Animal Integrated Farming, Ministry of Agriculture, Nanjing, 210014, China
| | - H L Wang
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
- The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing, 210014, China
- Key Laboratory of Crop and Animal Integrated Farming, Ministry of Agriculture, Nanjing, 210014, China
| | - C H Meng
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
- The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing, 210014, China
- Key Laboratory of Crop and Animal Integrated Farming, Ministry of Agriculture, Nanjing, 210014, China
| | - J Zhang
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
- The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing, 210014, China
- Key Laboratory of Crop and Animal Integrated Farming, Ministry of Agriculture, Nanjing, 210014, China
| | - Y Qian
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
- The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing, 210014, China
- Key Laboratory of Crop and Animal Integrated Farming, Ministry of Agriculture, Nanjing, 210014, China
| | - J F Zhong
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
- The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing, 210014, China
- Key Laboratory of Crop and Animal Integrated Farming, Ministry of Agriculture, Nanjing, 210014, China
| | - S X Cao
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
- The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing, 210014, China.
- Key Laboratory of Crop and Animal Integrated Farming, Ministry of Agriculture, Nanjing, 210014, China.
- Institute of Life Sciences, Jiangsu University, Zhenjiang, 212013, China.
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30
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Non-Coding RNA Regulates the Myogenesis of Skeletal Muscle Satellite Cells, Injury Repair and Diseases. Cells 2019; 8:cells8090988. [PMID: 31461973 PMCID: PMC6769629 DOI: 10.3390/cells8090988] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 08/24/2019] [Accepted: 08/26/2019] [Indexed: 02/07/2023] Open
Abstract
Skeletal muscle myogenesis and injury-induced muscle regeneration contribute to muscle formation and maintenance. As myogenic stem cells, skeletal muscle satellite cells have the ability to proliferate, differentiate and self-renew, and are involved in muscle formation and muscle injury repair. Accumulating evidence suggests that non-coding RNAs (ncRNAs), including microRNAs (miRNAs), long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs), are widely involved in the regulation of gene expression during skeletal muscle myogenesis, and their abnormal expression is associated with a variety of muscle diseases. From the perspective of the molecular mechanism and mode of action of ncRNAs in myogenesis, this review aims to summarize the role of ncRNAs in skeletal muscle satellite cells’ myogenic differentiation and in muscle disease, and systematically analyze the mechanism of ncRNAs in skeletal muscle development. This work will systematically summarize the role of ncRNAs in myogenesis and provide reference targets for the treatment of various muscle diseases, such as muscle dystrophy, atrophy and aberrant hypertrophy.
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31
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Master control: transcriptional regulation of mammalian Myod. J Muscle Res Cell Motil 2019; 40:211-226. [PMID: 31301002 PMCID: PMC6726840 DOI: 10.1007/s10974-019-09538-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 07/03/2019] [Indexed: 12/22/2022]
Abstract
MYOD is a master regulator of the skeletal myogenic program. But what regulates expression of Myod? More than 20 years ago, studies established that Myod expression is largely controlled by just two enhancer regions located within a region 24 kb upstream of the transcription start site in mammals, which regulate Myod expression in the embryo, fetus and adult. Despite this apparently simple arrangement, Myod regulation is complex, with different combinations of transcription factors acting on these enhancers in different muscle progenitor cells and phases of differentiation. A range of epigenetic modifications in the Myod upstream region also play a part in activating and repressing Myod expression during development and regeneration. Here the evidence for this binding at Myod control regions is summarized, giving an overview of our current understanding of Myod expression regulation in mammals.
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32
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Methylome and transcriptome maps of human visceral and subcutaneous adipocytes reveal key epigenetic differences at developmental genes. Sci Rep 2019; 9:9511. [PMID: 31266983 PMCID: PMC6606599 DOI: 10.1038/s41598-019-45777-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 06/11/2019] [Indexed: 12/19/2022] Open
Abstract
Adipocytes support key metabolic and endocrine functions of adipose tissue. Lipid is stored in two major classes of depots, namely visceral adipose (VA) and subcutaneous adipose (SA) depots. Increased visceral adiposity is associated with adverse health outcomes, whereas the impact of SA tissue is relatively metabolically benign. The precise molecular features associated with the functional differences between the adipose depots are still not well understood. Here, we characterised transcriptomes and methylomes of isolated adipocytes from matched SA and VA tissues of individuals with normal BMI to identify epigenetic differences and their contribution to cell type and depot-specific function. We found that DNA methylomes were notably distinct between different adipocyte depots and were associated with differential gene expression within pathways fundamental to adipocyte function. Most striking differential methylation was found at transcription factor and developmental genes. Our findings highlight the importance of developmental origins in the function of different fat depots.
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Byrnes LE, Wong DM, Subramaniam M, Meyer NP, Gilchrist CL, Knox SM, Tward AD, Ye CJ, Sneddon JB. Lineage dynamics of murine pancreatic development at single-cell resolution. Nat Commun 2018; 9:3922. [PMID: 30254276 PMCID: PMC6156586 DOI: 10.1038/s41467-018-06176-3] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 08/16/2018] [Indexed: 01/07/2023] Open
Abstract
Organogenesis requires the complex interactions of multiple cell lineages that coordinate their expansion, differentiation, and maturation over time. Here, we profile the cell types within the epithelial and mesenchymal compartments of the murine pancreas across developmental time using a combination of single-cell RNA sequencing, immunofluorescence, in situ hybridization, and genetic lineage tracing. We identify previously underappreciated cellular heterogeneity of the developing mesenchyme and reconstruct potential lineage relationships among the pancreatic mesothelium and mesenchymal cell types. Within the epithelium, we find a previously undescribed endocrine progenitor population, as well as an analogous population in both human fetal tissue and human embryonic stem cells differentiating toward a pancreatic beta cell fate. Further, we identify candidate transcriptional regulators along the differentiation trajectory of this population toward the alpha or beta cell lineages. This work establishes a roadmap of pancreatic development and demonstrates the broad utility of this approach for understanding lineage dynamics in developing organs. Coordinated proliferation and differentiation of diverse cell populations drive pancreatic epithelial and mesenchymal development. Here, the authors profile cell type dynamics in the developing mouse pancreas using single-cell RNA sequencing, identifying mesenchymal subtypes and undescribed endocrine progenitors.
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Affiliation(s)
- Lauren E Byrnes
- Diabetes Center, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA, 94143, USA
| | - Daniel M Wong
- Diabetes Center, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA, 94143, USA
| | - Meena Subramaniam
- Institute for Human Genetics, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA, 94143, USA
| | - Nathaniel P Meyer
- Diabetes Center, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA, 94143, USA
| | - Caroline L Gilchrist
- Diabetes Center, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA, 94143, USA
| | - Sarah M Knox
- Department of Cell and Tissue Biology, University of California, San Francisco, 513 Parnassus Avenue, CA, 94143, USA
| | - Aaron D Tward
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, 513 Parnassus Avenue, CA, 94143, USA
| | - Chun J Ye
- Institute for Human Genetics, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA, 94143, USA
| | - Julie B Sneddon
- Diabetes Center, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA, 94143, USA.
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Yan H, Jiang E, Zhu H, Hu L, Liu J, Qu L. The novel 22 bp insertion mutation in a promoter region of the <i>PITX2</i> gene is associated with litter size and growth traits in goats. Arch Anim Breed 2018. [DOI: 10.5194/aab-61-329-2018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract. The paired-like homeodomain 2 (PITX2) gene plays a critical role in
regulating development, reproduction, and growth traits in ruminants. Hence,
the objective of this study was to explore the polymorphisms of this gene and
to evaluate their associations with quantitative traits. Herein, a novel
insertion in the promoter region of the PITX2 gene was reported in
Shaanbei white cashmere (SBWC) goats (n=1012). The genotype distributions
between mothers of single-kid and multi-kid groups within SBWC goats were
significantly different (P<0.01), implying that this indel mutation might
affect the litter size. Furthermore, association analysis found that this
indel mutation was significantly associated with litter size (P=0.001).
Individuals with genotype DD had a significantly smaller litter size than
those with other genotypes (P<0.01). Besides, this indel was significantly
associated with the body length (P=0.042) and the chest width (P=0.031). Especially, the individuals with genotype DD had a significantly
lower body length than those with genotype II (P<0.05), which was
consistent with the trend in litter size. These findings suggested that the
new 22 bp indel mutation within the PITX2 gene is significantly
associated with litter size and growth traits; this can be utilized as a
functional molecular marker in goat breeding.
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35
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Zhang S, Xu H, Kang Z, Cai H, Dang R, Lei C, Chen H, Guo X, Lan X. Bovine pituitary homeobox 2 (PITX2): mRNA expression profiles of different alternatively spliced variants and association analyses with growth traits. Gene 2018; 669:1-7. [DOI: 10.1016/j.gene.2018.05.083] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 05/12/2018] [Accepted: 05/21/2018] [Indexed: 12/19/2022]
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36
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Čamernik K, Barlič A, Drobnič M, Marc J, Jeras M, Zupan J. Mesenchymal Stem Cells in the Musculoskeletal System: From Animal Models to Human Tissue Regeneration? Stem Cell Rev Rep 2018; 14:346-369. [DOI: 10.1007/s12015-018-9800-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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