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Suzuki R, Kanemaki MT, Suzuki T, Yoshioka K. Overexpression of JNK-associated leucine zipper protein induces chromosomal instability through interaction with dynein light intermediate chain 1. Genes Cells 2024; 29:39-51. [PMID: 37963657 DOI: 10.1111/gtc.13083] [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: 09/26/2023] [Revised: 10/26/2023] [Accepted: 11/05/2023] [Indexed: 11/16/2023]
Abstract
The c-Jun N-terminal kinase-associated leucine zipper protein (JLP), a scaffold protein of mitogen-activated protein kinase signaling pathways, is a multifunctional protein involved in a variety of cellular processes. It has been reported that JLP is overexpressed in various types of cancer and is expected to be a potential therapeutic target. However, whether and how JLP overexpression affects non-transformed cells remain unknown. Here, we aimed to investigate the effect of JLP overexpression on chromosomal stability in human non-transformed cells and the mechanisms involved. We found that aneuploidy was induced in JLP-overexpressed cells. Moreover, we established JLP-inducible cell lines and observed an increased frequency of chromosome missegregation, reduced time from nuclear envelope breakdown to anaphase onset, and decreased levels of the spindle assembly checkpoint (SAC) components at the prometaphase kinetochore in cells overexpressing the wild-type JLP. In contrast, we observed that a point mutant JLP lacking the ability to interact with dynein light intermediate chain 1 (DLIC1) failed to induce chromosomal instability. Our results suggest that overexpression of the wild-type JLP facilitates premature SAC silencing through interaction with DLIC1, leading to aneuploidy. This study provides a novel insight into the mechanism through which JLP overexpression is associated with cancer development and progression.
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Affiliation(s)
- Ryusuke Suzuki
- Division of Molecular Cell Signaling, Cancer Research Institute, Kanazawa University, Kanazawa, Ishikawa, Japan
- Division of Functional Genomics, Cancer Research Institute, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Masato T Kanemaki
- Department of Chromosome Science, National Institute of Genetics, Research Organization of Information and Systems (ROIS), Mishima, Shizuoka, Japan
- Graduate Institute for Advanced Studies, SOKENDAI, Mishima, Shizuoka, Japan
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Takeshi Suzuki
- Division of Functional Genomics, Cancer Research Institute, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Katsuji Yoshioka
- Division of Molecular Cell Signaling, Cancer Research Institute, Kanazawa University, Kanazawa, Ishikawa, Japan
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2
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Schweizer RM, Ivy CM, Natarajan C, Scott GR, Storz JF, Cheviron ZA. Gene regulatory changes underlie developmental plasticity in respiration and aerobic performance in highland deer mice. Mol Ecol 2023; 32:3483-3496. [PMID: 37073620 PMCID: PMC10330314 DOI: 10.1111/mec.16953] [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: 09/26/2022] [Revised: 03/27/2023] [Accepted: 04/03/2023] [Indexed: 04/20/2023]
Abstract
Phenotypic plasticity can play an important role in the ability of animals to tolerate environmental stress, but the nature and magnitude of plastic responses are often specific to the developmental timing of exposure. Here, we examine changes in gene expression in the diaphragm of highland deer mice (Peromyscus maniculatus) in response to hypoxia exposure at different stages of development. In highland deer mice, developmental plasticity in diaphragm function may mediate changes in several respiratory traits that influence aerobic metabolism and performance under hypoxia. We generated RNAseq data from diaphragm tissue of adult deer mice exposed to (1) life-long hypoxia (before conception to adulthood), (2) post-natal hypoxia (birth to adulthood), (3) adult hypoxia (6-8 weeks only during adulthood) or (4) normoxia. We found five suites of co-regulated genes that are differentially expressed in response to hypoxia, but the patterns of differential expression depend on the developmental timing of exposure. We also identified four transcriptional modules that are associated with important respiratory traits. Many of the genes in these transcriptional modules bear signatures of altitude-related selection, providing an indirect line of evidence that observed changes in gene expression may be adaptive in hypoxic environments. Our results demonstrate the importance of developmental stage in determining the phenotypic response to environmental stressors.
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Affiliation(s)
- Rena M. Schweizer
- Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA
| | - Catherine M. Ivy
- Department of Biology, McMaster University, Hamilton, ON, Canada, L8S 4K1
| | | | - Graham R. Scott
- Department of Biology, McMaster University, Hamilton, ON, Canada, L8S 4K1
| | - Jay F. Storz
- School of Biological Sciences, University of Nebraska, Lincoln, NE 68588, USA
| | - Zachary A. Cheviron
- Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA
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3
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Hwang J, Thurmond DC. Exocytosis Proteins: Typical and Atypical Mechanisms of Action in Skeletal Muscle. Front Endocrinol (Lausanne) 2022; 13:915509. [PMID: 35774142 PMCID: PMC9238359 DOI: 10.3389/fendo.2022.915509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 05/11/2022] [Indexed: 11/18/2022] Open
Abstract
Insulin-stimulated glucose uptake in skeletal muscle is of fundamental importance to prevent postprandial hyperglycemia, and long-term deficits in insulin-stimulated glucose uptake underlie insulin resistance and type 2 diabetes. Skeletal muscle is responsible for ~80% of the peripheral glucose uptake from circulation via the insulin-responsive glucose transporter GLUT4. GLUT4 is mainly sequestered in intracellular GLUT4 storage vesicles in the basal state. In response to insulin, the GLUT4 storage vesicles rapidly translocate to the plasma membrane, where they undergo vesicle docking, priming, and fusion via the high-affinity interactions among the soluble N-ethylmaleimide sensitive factor attachment protein receptor (SNARE) exocytosis proteins and their regulators. Numerous studies have elucidated that GLUT4 translocation is defective in insulin resistance and type 2 diabetes. Emerging evidence also links defects in several SNAREs and SNARE regulatory proteins to insulin resistance and type 2 diabetes in rodents and humans. Therefore, we highlight the latest research on the role of SNAREs and their regulatory proteins in insulin-stimulated GLUT4 translocation in skeletal muscle. Subsequently, we discuss the novel emerging role of SNARE proteins as interaction partners in pathways not typically thought to involve SNAREs and how these atypical functions reveal novel therapeutic targets for combating peripheral insulin resistance and diabetes.
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Affiliation(s)
| | - Debbie C. Thurmond
- Department of Molecular and Cellular Endocrinology, Arthur Riggs Diabetes and Metabolism Research Institute, Beckman Research Institute at City of Hope, Duarte, CA, United States
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Uluca B, Lektemur Esen C, Saritas Erdogan S, Kumbasar A. NFI transcriptionally represses CDON and is required for SH-SY5Y cell survival. BIOCHIMICA ET BIOPHYSICA ACTA. GENE REGULATORY MECHANISMS 2022; 1865:194798. [PMID: 35151899 DOI: 10.1016/j.bbagrm.2022.194798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/14/2022] [Accepted: 01/30/2022] [Indexed: 06/14/2023]
Abstract
Nuclear Factor One (NFI) family of transcription factors regulate proliferation and multiple aspects of differentiation, playing analogous roles in embryonic development and various types of cancer. While all NFI family members are expressed in the developing brain and are involved in progression of brain cancers, their role in neuroblastoma has not been studied. Here we show that NFIB is required for the survival and proliferation of SH-SY5Y neuroblastoma cells, assessed by viability and colony formation assays. Cdon, an Ig superfamily member, is a SHH dependence receptor that acts as a tumor suppressor in neuroblastoma. In the absence of NFI, Cdon is upregulated in the developing mouse brain, however the mechanisms by which its transcription is regulated remains unknown. We report CDON as a downstream target of NFIs in SH-SY5Y cells. There are three putative NFI binding sites within the one kb CDON promoter, two of which are occupied by NFIs in SH-SY5Y cells and human neural stem cells. In dual-luciferase assays, Nfib directly represses CDON proximal promoter activity. Moreover, silencing NFIB leads to upregulation of CDON in SH-SY5Y cells, however, decreased cell proliferation in NFIB silenced cells could not be rescued by concomitantly silencing CDON, suggesting other molecular players are involved. For instance, p21, an NFI target in glioblastoma and breast cancer cells, is also upregulated upon NFIB knock-down. We propose that NFIB is indispensable for SH-SY5Y cells which may involve regulation of apoptosis inducer proteins CDON and p21.
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Affiliation(s)
- Betül Uluca
- Department of Molecular Biology and Genetics, Istanbul Technical University, Maslak, Istanbul 34469, Turkey; Department of Molecular Biotechnology, Turkish-German University, Beykoz, Istanbul 34820, Turkey
| | - Cemre Lektemur Esen
- Department of Molecular Biology and Genetics, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
| | - Sinem Saritas Erdogan
- Department of Molecular Biology and Genetics, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
| | - Asli Kumbasar
- Department of Molecular Biology and Genetics, Istanbul Technical University, Maslak, Istanbul 34469, Turkey.
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5
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ZSWIM8 is a myogenic protein that partly prevents C2C12 differentiation. Sci Rep 2021; 11:20880. [PMID: 34686700 PMCID: PMC8536758 DOI: 10.1038/s41598-021-00306-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 10/08/2021] [Indexed: 12/17/2022] Open
Abstract
Cell adhesion molecule-related/downregulated by oncogenes (Cdon) is a cell-surface receptor that mediates cell–cell interactions and positively regulates myogenesis. The cytoplasmic region of Cdon interacts with other proteins to form a Cdon/JLP/Bnip-2/CDC42 complex that activates p38 mitogen-activated protein kinase (MAPK) and induces myogenesis. However, Cdon complex may include other proteins during myogenesis. In this study, we found that Cullin 2-interacting protein zinc finger SWIM type containing 8 (ZSWIM8) ubiquitin ligase is induced during C2C12 differentiation and is included in the Cdon complex. We knocked-down Zswim8 in C2C12 cells to determine the effect of ZSWIM8 on differentiation. However, we detected neither ZSWIM8-dependent ubiquitination nor the degradation of Bnip2, Cdon, or JLP. In contrast, ZSWIM8 knockdown accelerated C2C12 differentiation. These results suggest that ZSWIM8 is a Cdon complex-included myogenic protein that prevents C2C12 differentiation without affecting the stability of Bnip2, Cdon, and JLP.
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Kim JW, Kim R, Choi H, Lee SJ, Bae GU. Understanding of sarcopenia: from definition to therapeutic strategies. Arch Pharm Res 2021; 44:876-889. [PMID: 34537916 DOI: 10.1007/s12272-021-01349-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 09/07/2021] [Indexed: 12/23/2022]
Abstract
Sarcopenia refers to the gradual loss of skeletal muscle mass and function along with aging and is a social burden due to growing healthcare cost associated with a super-aging society. Therefore, researchers have established guidelines and tests to diagnose sarcopenia. Several studies have been conducted actively to reveal the cause of sarcopenia and find an economic therapy to improve the quality of life in elderly individuals. Sarcopenia is caused by multiple factors such as reduced regenerative capacity, imbalance in protein turnover, alteration of fat and fibrotic composition in muscle, increased reactive oxygen species, dysfunction of mitochondria and increased inflammation. Based on these mechanisms, nonpharmacological and pharmacological strategies have been developed to prevent and treat sarcopenia. Although several studies are currently in progress, no treatment is available yet. This review presents the definition of sarcopenia and summarizes recent understanding on the detailed mechanisms, diagnostic criteria, and strategies for prevention and treatment.
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Affiliation(s)
- Jee Won Kim
- Drug Information Research Institute, College of Pharmacy, Sookmyung Women's University, Seoul, 04310, Republic of Korea
| | - Ryuni Kim
- Drug Information Research Institute, College of Pharmacy, Sookmyung Women's University, Seoul, 04310, Republic of Korea
| | - Hyerim Choi
- Drug Information Research Institute, College of Pharmacy, Sookmyung Women's University, Seoul, 04310, Republic of Korea
| | - Sang-Jin Lee
- Research Institute of Aging-Related Disease, AniMusCure Inc., Suwon, 16419, Republic of Korea.
| | - Gyu-Un Bae
- Drug Information Research Institute, College of Pharmacy, Sookmyung Women's University, Seoul, 04310, Republic of Korea.
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7
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de las Fuentes L, Sung YJ, Noordam R, Winkler T, Feitosa MF, Schwander K, Bentley AR, Brown MR, Guo X, Manning A, Chasman DI, Aschard H, Bartz TM, Bielak LF, Campbell A, Cheng CY, Dorajoo R, Hartwig FP, Horimoto ARVR, Li C, Li-Gao R, Liu Y, Marten J, Musani SK, Ntalla I, Rankinen T, Richard M, Sim X, Smith AV, Tajuddin SM, Tayo BO, Vojinovic D, Warren HR, Xuan D, Alver M, Boissel M, Chai JF, Chen X, Christensen K, Divers J, Evangelou E, Gao C, Girotto G, Harris SE, He M, Hsu FC, Kühnel B, Laguzzi F, Li X, Lyytikäinen LP, Nolte IM, Poveda A, Rauramaa R, Riaz M, Rueedi R, Shu XO, Snieder H, Sofer T, Takeuchi F, Verweij N, Ware EB, Weiss S, Yanek LR, Amin N, Arking DE, Arnett DK, Bergmann S, Boerwinkle E, Brody JA, Broeckel U, Brumat M, Burke G, Cabrera CP, Canouil M, Chee ML, Chen YDI, Cocca M, Connell J, de Silva HJ, de Vries PS, Eiriksdottir G, Faul JD, Fisher V, Forrester T, Fox EF, Friedlander Y, Gao H, Gigante B, Giulianini F, Gu CC, Gu D, Harris TB, He J, Heikkinen S, Heng CK, Hunt S, Ikram MA, Irvin MR, Kähönen M, Kavousi M, Khor CC, Kilpeläinen TO, Koh WP, Komulainen P, Kraja AT, Krieger JE, Langefeld CD, Li Y, Liang J, Liewald DCM, Liu CT, Liu J, Lohman KK, Mägi R, McKenzie CA, Meitinger T, Metspalu A, Milaneschi Y, Milani L, Mook-Kanamori DO, Nalls MA, Nelson CP, Norris JM, O'Connell J, Ogunniyi A, Padmanabhan S, Palmer ND, Pedersen NL, Perls T, Peters A, Petersmann A, Peyser PA, Polasek O, Porteous DJ, Raffel LJ, Rice TK, Rotter JI, Rudan I, Rueda-Ochoa OL, Sabanayagam C, Salako BL, Schreiner PJ, Shikany JM, Sidney SS, Sims M, Sitlani CM, Smith JA, Starr JM, Strauch K, Swertz MA, Teumer A, Tham YC, Uitterlinden AG, Vaidya D, van der Ende MY, Waldenberger M, Wang L, Wang YX, Wei WB, Weir DR, Wen W, Yao J, Yu B, Yu C, Yuan JM, Zhao W, Zonderman AB, Becker DM, Bowden DW, Deary IJ, Dörr M, Esko T, Freedman BI, Froguel P, Gasparini P, Gieger C, Jonas JB, Kammerer CM, Kato N, Lakka TA, Leander K, Lehtimäki T, Magnusson PKE, Marques-Vidal P, Penninx BWJH, Samani NJ, van der Harst P, Wagenknecht LE, Wu T, Zheng W, Zhu X, Bouchard C, Cooper RS, Correa A, Evans MK, Gudnason V, Hayward C, Horta BL, Kelly TN, Kritchevsky SB, Levy D, Palmas WR, Pereira AC, Province MM, Psaty BM, Ridker PM, Rotimi CN, Tai ES, van Dam RM, van Duijn CM, Wong TY, Rice K, Gauderman WJ, Morrison AC, North KE, Kardia SLR, Caulfield MJ, Elliott P, Munroe PB, Franks PW, Rao DC, Fornage M. Gene-educational attainment interactions in a multi-ancestry genome-wide meta-analysis identify novel blood pressure loci. Mol Psychiatry 2021; 26:2111-2125. [PMID: 32372009 PMCID: PMC7641978 DOI: 10.1038/s41380-020-0719-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 03/19/2020] [Accepted: 03/24/2020] [Indexed: 02/07/2023]
Abstract
Educational attainment is widely used as a surrogate for socioeconomic status (SES). Low SES is a risk factor for hypertension and high blood pressure (BP). To identify novel BP loci, we performed multi-ancestry meta-analyses accounting for gene-educational attainment interactions using two variables, "Some College" (yes/no) and "Graduated College" (yes/no). Interactions were evaluated using both a 1 degree of freedom (DF) interaction term and a 2DF joint test of genetic and interaction effects. Analyses were performed for systolic BP, diastolic BP, mean arterial pressure, and pulse pressure. We pursued genome-wide interrogation in Stage 1 studies (N = 117 438) and follow-up on promising variants in Stage 2 studies (N = 293 787) in five ancestry groups. Through combined meta-analyses of Stages 1 and 2, we identified 84 known and 18 novel BP loci at genome-wide significance level (P < 5 × 10-8). Two novel loci were identified based on the 1DF test of interaction with educational attainment, while the remaining 16 loci were identified through the 2DF joint test of genetic and interaction effects. Ten novel loci were identified in individuals of African ancestry. Several novel loci show strong biological plausibility since they involve physiologic systems implicated in BP regulation. They include genes involved in the central nervous system-adrenal signaling axis (ZDHHC17, CADPS, PIK3C2G), vascular structure and function (GNB3, CDON), and renal function (HAS2 and HAS2-AS1, SLIT3). Collectively, these findings suggest a role of educational attainment or SES in further dissection of the genetic architecture of BP.
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Affiliation(s)
- Lisa de las Fuentes
- Cardiovascular Division, Department of Medicine, Washington University, St. Louis, MO, 63110, USA.
- Division of Biostatistics, Washington University School of Medicine, St. Louis, MO, 63110, USA.
| | - Yun Ju Sung
- Division of Biostatistics, Washington University School of Medicine, St. Louis, MO, 63110, USA.
| | - Raymond Noordam
- Section of Gerontology and Geriatrics, Department of Internal Medicine, Leiden University Medical Center, Leiden, 2333ZA, The Netherlands
| | - Thomas Winkler
- Department of Genetic Epidemiology, University of Regensburg, 93051, Regensburg, Germany
| | - Mary F Feitosa
- Division of Statistical Genomics, Department of Genetics, Washington University School of Medicine, St. Louis, MO, 63108, USA
| | - Karen Schwander
- Division of Biostatistics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Amy R Bentley
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Michael R Brown
- Human Genetics Center, Department of Epidemiology, Human Genetics, and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Xiuqing Guo
- The Institute for Translational Genomics and Population Sciences, Division of Genomic Outcomes, Department of Pediatrics, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA, 90502, USA
| | - Alisa Manning
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston, MA, 02114, USA
- Department of Medicine, Harvard Medical School, Boston, MA, 02115, USA
| | - Daniel I Chasman
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, MA, 02215, USA
- Harvard Medical School, Boston, MA, 02115, USA
| | - Hugues Aschard
- Department of Epidemiology, Harvard School of Public Health, Boston, MA, 02115, USA
- Centre de Bioinformatique, Biostatistique et Biologie Intégrative (C3BI), Institut Pasteur, Paris, 75724, France
| | - Traci M Bartz
- Cardiovascular Health Research Unit, Biostatistics and Medicine, University of Washington, Seattle, WA, 98101, USA
| | - Lawrence F Bielak
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Archie Campbell
- Centre for Genomic & Experimental Medicine, Institute of Genetics & Molecular Medicine, University of Edinburgh, Edinburgh, EH4 2XU, UK
| | - Ching-Yu Cheng
- Ocular Epidemiology, Singapore Eye Research Institute, Singapore National Ecy Centre, Singapore, 169856, Singapore
- Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore, 169857, Singapore
| | - Rajkumar Dorajoo
- Genome Institute of Singapore, Agency for Science Technology and Research, Singapore, 138672, Singapore
| | - Fernando P Hartwig
- Postgraduate Programme in Epidemiology, Federal University of Pelotas, Pelotas, RS, 96020-220, Brazil
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, BS8 2BN, UK
| | - A R V R Horimoto
- Laboratory of Genetics and Molecular Cardiology, Heart Institute (InCor), University of São Paulo Medical School, São Paulo, SP, 5403000, Brazil
| | - Changwei Li
- Epidemiology and Biostatistics, University of Georgia at Athens College of Public Health, Athens, GA, 30602, USA
| | - Ruifang Li-Gao
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, 2333ZA, Netherlands
| | - Yongmei Liu
- Public Health Sciences, Epidemiology and Prevention, Wake Forest University Health Sciences, Winston-Salem, NC, 27157, USA
| | - Jonathan Marten
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, EH4 2XU, UK
| | - Solomon K Musani
- Jackson Heart Study, Department of Medicine, University of Mississippi Medical Center, Jackson, MS, 39213, USA
| | - Ioanna Ntalla
- Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Tuomo Rankinen
- Human Genomics Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, USA
| | - Melissa Richard
- Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, 70808, USA
| | - Xueling Sim
- Saw Swee Hock School of Public Health, National University Health System and National University of Singapore, Singapore, 117549, Singapore
| | - Albert V Smith
- Department of Biostatistics, University of Michigan, Ann Arbor, MI, 48109, USA
- Icelandic Heart Association, Kopavogur, 201, Iceland
| | - Salman M Tajuddin
- Health Disparities Research Section, Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Bamidele O Tayo
- Department of Public Health Sciences, Loyola University Chicago, Maywood, IL, 60153, USA
| | - Dina Vojinovic
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Helen R Warren
- Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
- NIHR Barts Cardiovascular Biomedical Research Unit, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, London, EC1M 6BQ, UK
| | - Deng Xuan
- Biostatistics, Boston University School of Public Health, Boston, MA, 02118, USA
| | - Maris Alver
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, 51010, Estonia
- Department of Biotechnology, Institute of Molecular and Cell Biology, University of Tartu, Tartu, 51010, Estonia
| | - Mathilde Boissel
- CNRS UMR 8199, European Genomic Institute for Diabetes (EGID), Institut Pasteur de Lille, University of Lille, Lille, 59000, France
| | - Jin-Fang Chai
- Saw Swee Hock School of Public Health, National University Health System and National University of Singapore, Singapore, 117549, Singapore
| | - Xu Chen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Stockholm, 17177, Sweden
| | - Kaare Christensen
- Unit of Epidemiology, Biostatistics and Biodemography, Department of Public Health, Southern Denmark University, Odense, 5000, Denmark
| | - Jasmin Divers
- Biostatistical Sciences, Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Evangelos Evangelou
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, W2 1PG, UK
- Department of Hygiene and Epidemiology, University of Ioannina Medical School, Ioannina, 45110, Greece
| | - Chuan Gao
- Molecular Genetics and Genomics Program, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Giorgia Girotto
- Medical Genetics, Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, 34100, Italy
- Institute for Maternal and Child Health-IRCCS "Burlo Garofolo", Trieste, 34100, Italy
| | - Sarah E Harris
- Department of Psychology, Centre for Cognitive Ageing and Cognitive Epidemiology, The University of Edinburgh, Edinburgh, EH8 9JZ, UK
| | - Meian He
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Fang-Chi Hsu
- Biostatistical Sciences, Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Brigitte Kühnel
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Federica Laguzzi
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, 17177, Sweden
| | - Xiaoyin Li
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, 44106, USA
- Department of Mathematics and Statistics, University of Minnesota, Duluth, MN, 55812, USA
| | - Leo-Pekka Lyytikäinen
- Department of Clinical Chemistry, Fimlab Laboratories, Tampere, 33520, Finland
- Department of Clinical Chemistry, Finnish Cardiovascular Research Center - Tampere, Faculty of Medicine and Health Technology, University of Tampere, Tampere, 33014, Finland
| | - Ilja M Nolte
- University of Groningen, University Medical Center Groningen, Department of Epidemiology, Groningen, 9700RB, The Netherlands
| | - Alaitz Poveda
- Department of Clinical Sciences, Genetic and Molecular Epidemiology Unit, Lund University Diabetes Centre, Skåne University Hospital, Malmö, Skåne, 205 02, Sweden
| | - Rainer Rauramaa
- Foundation for Research in Health Exercise and Nutrition, Kuopio Research Institute of Exercise Medicine, Kuopio, 70100, Finland
| | - Muhammad Riaz
- College of Medicine, Biological Sciences and Psychology, Health Sciences, The Infant Mortality and Morbidity Studies (TIMMS), Leicester, LE1 7RH, UK
| | - Rico Rueedi
- Department of Computational Biology, University of Lausanne, Lausanne, 1011, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, 1015, Switzerland
| | - Xiao-Ou Shu
- Division of Epidemiology, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, 37203, USA
| | - Harold Snieder
- University of Groningen, University Medical Center Groningen, Department of Epidemiology, Groningen, 9700RB, The Netherlands
| | - Tamar Sofer
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - Fumihiko Takeuchi
- Department of Gene Diagnostics and Therapeutics, Research Institute, National Center for Global Health and Medicine, Tokyo, 1628655, Japan
| | - Niek Verweij
- University of Groningen, University Medical Center Groningen, Department of Cardiology, Groningen, 9700, The Netherlands
| | - Erin B Ware
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, MI, 48104, USA
| | - Stefan Weiss
- Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, 9713GZ, Greifswald, Germany
- DZHK (German Centre for Cardiovascular Health), Partner Site Greifswald, 17475, Greifswald, Germany
| | - Lisa R Yanek
- Division of General Internal Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Najaf Amin
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Dan E Arking
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Donna K Arnett
- Dean's Office, University of Kentucky College of Public Health, Lexington, KY, 40536, USA
| | - Sven Bergmann
- Department of Computational Biology, University of Lausanne, Lausanne, 1011, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, 1015, Switzerland
| | - Eric Boerwinkle
- Human Genetics Center, Department of Epidemiology, Human Genetics, and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Jennifer A Brody
- Cardiovascular Health Research Unit, Medicine, University of Washington, Seattle, WA, 98101, USA
| | - Ulrich Broeckel
- Section of Genomic Pediatrics, Department of Pediatrics, Medicine and Physiology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Marco Brumat
- Medical Genetics, Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, 34100, Italy
| | - Gregory Burke
- Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, 27109, USA
| | - Claudia P Cabrera
- Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
- NIHR Barts Cardiovascular Biomedical Research Unit, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, London, EC1M 6BQ, UK
| | - Mickaël Canouil
- CNRS UMR 8199, European Genomic Institute for Diabetes (EGID), Institut Pasteur de Lille, University of Lille, Lille, 59000, France
| | - Miao Li Chee
- Statistics Unit, Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, 169856, Singapore
| | - Yii-Der Ida Chen
- The Institute for Translational Genomics and Population Sciences, Division of Genomic Outcomes, Department of Pediatrics, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA, 90502, USA
| | - Massimiliano Cocca
- Institute for Maternal and Child Health-IRCCS "Burlo Garofolo", Trieste, 34100, Italy
| | - John Connell
- Ninewells Hospital & Medical School, University of Dundee, Dundee, Scotland, DD1 9SY, UK
| | - H Janaka de Silva
- Department of Medicine, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Paul S de Vries
- Human Genetics Center, Department of Epidemiology, Human Genetics, and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | | | - Jessica D Faul
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, MI, 48104, USA
| | - Virginia Fisher
- Biostatistics, Boston University School of Public Health, Boston, MA, 02118, USA
| | - Terrence Forrester
- Tropical Metabolism Research Unit, Tropical Medicine Research Institute, University of the West Indies, Mona, JMAAW15, Jamaica
| | - Ervin F Fox
- Cardiology, Medicine, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - Yechiel Friedlander
- Braun School of Public Health, Hebrew University-Hadassah Medical Center, Jerusalem, 91120, Israel
| | - He Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, W2 1PG, UK
- MRC-PHE Centre for Environment and Health, Imperial College London, London, W2 1PG, UK
| | - Bruna Gigante
- Cardiovascular Unit, Bioclinicum, Department of Medicine, Karolinska Hospital, Stockholm, 17164, Sweden
- Division of Cardiovascular Medicine, Department of Clinical Sciences, Danderyd University Hospital, Stockholm, 18288, Sweden
| | | | - Chi Charles Gu
- Division of Biostatistics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Dongfeng Gu
- Department of Epidemiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Tamara B Harris
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Jiang He
- Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, 70112, USA
- Medicine, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Sami Heikkinen
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, Kuopio Campus, Kuopio, 70211, Finland
- Institute of Clinical Medicine, Internal Medicine, University of Eastern Finland, Kuopio, 70211, Finland
| | - Chew-Kiat Heng
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119228, Singapore
- Khoo Teck Puat - National University Children's Medical Institute, National University Health System, Singapore, 119228, Singapore
| | - Steven Hunt
- Cardiovascular Genetics, Department of Internal Medicine, University of Utah, Salt Lake City, UT, 84108, USA
- Weill Cornell Medicine in Qatar, Doha, Qatar
| | - M Arfan Ikram
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Marguerite R Irvin
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Mika Kähönen
- Department of Clinical Physiology, Tampere University Hospital, Tampere, 33521, Finland
- Department of Clinical Physiology, Finnish Cardiovascular Research Center-Tampere, Faculty of Medicine and Health Technology, University of Tampere, Tampere, 33014, Finland
| | - Maryam Kavousi
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Chiea Chuen Khor
- Genome Institute of Singapore, Agency for Science Technology and Research, Singapore, 138672, Singapore
- Department of Biochemistry, National University of Singapore, Singapore, 117596, Singapore
| | - Tuomas O Kilpeläinen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, DK-2200, Denmark
- Department of Environmental Medicine and Public Health, The Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Woon-Puay Koh
- Saw Swee Hock School of Public Health, National University Health System and National University of Singapore, Singapore, 117549, Singapore
- Health Services and Systems Research, Duke-NUS Medical School, Singapore, 169857, Singapore
| | - Pirjo Komulainen
- Foundation for Research in Health Exercise and Nutrition, Kuopio Research Institute of Exercise Medicine, Kuopio, 70100, Finland
| | - Aldi T Kraja
- Division of Statistical Genomics, Department of Genetics, Washington University School of Medicine, St. Louis, MO, 63108, USA
| | - J E Krieger
- Laboratory of Genetics and Molecular Cardiology, Heart Institute (InCor), University of São Paulo Medical School, São Paulo, SP, 5403000, Brazil
| | - Carl D Langefeld
- Biostatistical Sciences, Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Yize Li
- Division of Biostatistics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Jingjing Liang
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - David C M Liewald
- Department of Psychology, Centre for Cognitive Ageing and Cognitive Epidemiology, The University of Edinburgh, Edinburgh, EH8 9JZ, UK
| | - Ching-Ti Liu
- Biostatistics, Boston University School of Public Health, Boston, MA, 02118, USA
| | - Jianjun Liu
- Genome Institute of Singapore, Agency for Science Technology and Research, Singapore, 138672, Singapore
- Saw Swee Hock School of Public Health, National University Health System and National University of Singapore, Singapore, 117549, Singapore
| | - Kurt K Lohman
- Public Health Sciences, Biostatistics and Data Science, Wake Forest University Health Sciences, Winston-Salem, NC, 27157, USA
| | - Reedik Mägi
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, 51010, Estonia
| | - Colin A McKenzie
- Tropical Metabolism Research Unit, Tropical Medicine Research Institute, University of the West Indies, Mona, JMAAW15, Jamaica
| | - Thomas Meitinger
- Institute of Human Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
- Institute of Human Genetics, Technische Universität München, 80333, Munich, Germany
| | - Andres Metspalu
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, 51010, Estonia
- Department of Biotechnology, Institute of Molecular and Cell Biology, University of Tartu, Tartu, 51010, Estonia
| | - Yuri Milaneschi
- Department of Psychiatry, Amsterdam Neuroscience and Amsterdam Public Health Research Institute, VU University Medical Center, Amsterdam, 1081 BT, The Netherlands
| | - Lili Milani
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, 51010, Estonia
| | - Dennis O Mook-Kanamori
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, 2333ZA, Netherlands
- Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, 2333ZA, Netherlands
| | - Mike A Nalls
- Molecular Genetics Section, Laboratory of Neurogenetics, National Institute on Aging, Bethesda, MD, 20895, USA
- Data Tecnica International, Glen Echo, MD, 20812, USA
| | - Christopher P Nelson
- Department of Cardiovascular Sciences, University of Leicester, Leicester, LE3 9QP, UK
- NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, LE3 9QP, UK
| | - Jill M Norris
- Department of Epidemiology, University of Colorado Denver, Aurora, CO, 80045, USA
| | - Jeff O'Connell
- Division of Endocrinology, Diabetes, and Nutrition, University of Maryland School of Medicine, Baltimore, MD, USA
- Program for Personalized and Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Adesola Ogunniyi
- Department of Medicine, University of Ibadan, Ibadan, Oyo, Nigeria
| | - Sandosh Padmanabhan
- British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | | | - Nancy L Pedersen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Stockholm, 17177, Sweden
| | - Thomas Perls
- Department of Medicine, Geriatrics Section, Boston Medical Center, Boston University School of Medicine, Boston, MA, 02118, USA
| | - Annette Peters
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, 85764, Neuherberg, Germany
| | - Astrid Petersmann
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, 17475, Greifswald, Germany
| | - Patricia A Peyser
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Ozren Polasek
- University of Split School of Medicine, Split, Croatia
- University Hospital Split, Split, Croatia
- Psychiatric Hospital "Sveti Ivan", Zagreb, Croatia
| | - David J Porteous
- Centre for Genomic & Experimental Medicine, Institute of Genetics & Molecular Medicine, University of Edinburgh, Edinburgh, EH4 2XU, UK
- Department of Psychology, Centre for Cognitive Ageing and Cognitive Epidemiology, The University of Edinburgh, Edinburgh, EH8 9JZ, UK
| | - Leslie J Raffel
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of California, Irvine, CA, 92868, USA
| | - Treva K Rice
- Division of Biostatistics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Jerome I Rotter
- The Institute for Translational Genomics and Population Sciences, Division of Genomic Outcomes, Department of Pediatrics, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA, 90502, USA
| | - Igor Rudan
- Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, EH8 9AG, UK
| | | | - Charumathi Sabanayagam
- Ocular Epidemiology, Singapore Eye Research Institute, Singapore National Ecy Centre, Singapore, 169856, Singapore
- Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore, 169857, Singapore
| | | | - Pamela J Schreiner
- Division of Epidemiology & Community Health, School of Public Health, University of Minnesota, Minneapolis, MN, 55454, USA
| | - James M Shikany
- Division of Preventive Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, 25249, USA
| | - Stephen S Sidney
- Division of Research, Kaiser Permanente of Northern California, Oakland, CA, USA
| | - Mario Sims
- Jackson Heart Study, Department of Medicine, University of Mississippi Medical Center, Jackson, MS, 39213, USA
| | - Colleen M Sitlani
- Cardiovascular Health Research Unit, Medicine, University of Washington, Seattle, WA, 98101, USA
| | - Jennifer A Smith
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, 48109, USA
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, MI, 48104, USA
| | - John M Starr
- Alzheimer Scotland Dementia Research Centre, The University of Edinburgh, Edinburgh, EH8 9AZ, UK
- Centre for Cognitive Ageing and Cognitive Epidemiology, The University of Edinburgh, Edinburgh, UK
| | - Konstantin Strauch
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
- Institute of Medical Informatics Biometry and Epidemiology, Ludwig-Maximilians-Universitat Munchen, 80539, Munich, Germany
| | - Morris A Swertz
- University of Groningen, University Medical Center Groningen, Department of Genetics, Groningen, 9700RB, The Netherlands
| | - Alexander Teumer
- DZHK (German Centre for Cardiovascular Health), Partner Site Greifswald, 17475, Greifswald, Germany
- Institute for Community Medicine, University Medicine Greifswald, 17475, Greifswald, Germany
| | - Yih Chung Tham
- Ocular Epidemiology, Singapore Eye Research Institute, Singapore National Ecy Centre, Singapore, 169856, Singapore
| | - André G Uitterlinden
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Dhananjay Vaidya
- Division of General Internal Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - M Yldau van der Ende
- University of Groningen, University Medical Center Groningen, Department of Cardiology, Groningen, 9700, The Netherlands
| | - Melanie Waldenberger
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, 85764, Neuherberg, Germany
| | - Lihua Wang
- Division of Statistical Genomics, Department of Genetics, Washington University School of Medicine, St. Louis, MO, 63108, USA
| | - Ya-Xing Wang
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Ophthalmology and Visual Science Key Lab, Beijing Tongren Hospital, Capital Medical University, 100730, Beijing, China
| | - Wen-Bin Wei
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, 100730, Beijing, China
| | - David R Weir
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, MI, 48104, USA
| | - Wanqing Wen
- Division of Epidemiology, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, 37203, USA
| | - Jie Yao
- The Institute for Translational Genomics and Population Sciences, Division of Genomic Outcomes, Department of Pediatrics, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA, 90502, USA
| | - Bing Yu
- Human Genetics Center, Department of Epidemiology, Human Genetics, and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Caizheng Yu
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jian-Min Yuan
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Division of Cancer Control and Population Sciences, UPMC Hillman Cancer, , University of Pittsburgh, Pittsburgh, PA, 15232, USA
| | - Wei Zhao
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Alan B Zonderman
- Behavioral Epidemiology Section, Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Diane M Becker
- Division of General Internal Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Donald W Bowden
- Biochemistry, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Ian J Deary
- Department of Psychology, Centre for Cognitive Ageing and Cognitive Epidemiology, The University of Edinburgh, Edinburgh, EH8 9JZ, UK
| | - Marcus Dörr
- DZHK (German Centre for Cardiovascular Health), Partner Site Greifswald, 17475, Greifswald, Germany
- Department of Internal Medicine B, University Medicine Greifswald, 17475, Greifswald, Germany
| | - Tõnu Esko
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, 51010, Estonia
- Broad Institute of the Massachusetts Institute of Technology and Harvard University, Boston, MA, 02142, USA
| | - Barry I Freedman
- Section on Nephrology, Department of Internal Medicine, Wake Forest School of Medicine, Winston-, Salem, NC, 27157, USA
| | - Philippe Froguel
- CNRS UMR 8199, European Genomic Institute for Diabetes (EGID), Institut Pasteur de Lille, University of Lille, Lille, 59000, France
- Department of Genomics of Common Disease, Imperial College London, London, W12 0NN, UK
| | - Paolo Gasparini
- Medical Genetics, Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, 34100, Italy
- Institute for Maternal and Child Health-IRCCS "Burlo Garofolo", Trieste, 34100, Italy
| | - Christian Gieger
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
- German Center for Diabetes Research (DZD e.V.), 85764, Neuherberg, Germany
| | - Jost Bruno Jonas
- Department of Ophthalmology, Medical Faculty Mannheim, University Heidelberg, 68167, Mannheim, Germany
- Beijing Institute of Ophthalmology, Beijing Ophthalmology and Visual Science Key Lab, Beijing Tongren Eye Center, Capital Medical University, 100730, Beijing, China
| | - Candace M Kammerer
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Norihiro Kato
- Department of Gene Diagnostics and Therapeutics, Research Institute, National Center for Global Health and Medicine, Tokyo, 1628655, Japan
| | - Timo A Lakka
- Foundation for Research in Health Exercise and Nutrition, Kuopio Research Institute of Exercise Medicine, Kuopio, 70100, Finland
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, Kuopio Campus, Kuopio, 70211, Finland
- Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, 70211, Finland
| | - Karin Leander
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, 17177, Sweden
| | - Terho Lehtimäki
- Department of Clinical Chemistry, Fimlab Laboratories, Tampere, 33520, Finland
- Department of Clinical Chemistry, Finnish Cardiovascular Research Center - Tampere, Faculty of Medicine and Health Technology, University of Tampere, Tampere, 33014, Finland
| | - Patrik K E Magnusson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Stockholm, 17177, Sweden
| | - Pedro Marques-Vidal
- Department of Medicine, Internal Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, 1011, Switzerland
| | - Brenda W J H Penninx
- Department of Psychiatry, Amsterdam Neuroscience and Amsterdam Public Health Research Institute, VU University Medical Center, Amsterdam, 1081 BT, The Netherlands
| | - Nilesh J Samani
- Department of Cardiovascular Sciences, University of Leicester, Leicester, LE3 9QP, UK
- NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, LE3 9QP, UK
| | - Pim van der Harst
- University of Groningen, University Medical Center Groningen, Department of Cardiology, Groningen, 9700, The Netherlands
- Durrer Center for Cardiogenetic Research, ICIN-Netherlands Heart Institute, Ultrecht, The Netherlands
| | - Lynne E Wagenknecht
- Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, 27109, USA
| | - Tangchun Wu
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, 37203, USA
| | - Xiaofeng Zhu
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Claude Bouchard
- Human Genomics Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, USA
| | - Richard S Cooper
- Department of Public Health Sciences, Loyola University Chicago, Maywood, IL, 60153, USA
| | - Adolfo Correa
- Jackson Heart Study, Department of Medicine, University of Mississippi Medical Center, Jackson, MS, 39213, USA
| | - Michele K Evans
- Health Disparities Research Section, Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Vilmundur Gudnason
- Icelandic Heart Association, Kopavogur, 201, Iceland
- Faculty of Medicine, University of Iceland, Reykjavik, 101, Iceland
| | - Caroline Hayward
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, EH4 2XU, UK
| | - Bernardo L Horta
- Postgraduate Programme in Epidemiology, Federal University of Pelotas, Pelotas, RS, 96020-220, Brazil
| | - Tanika N Kelly
- Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, 70112, USA
| | - Stephen B Kritchevsky
- Sticht Center for Health Aging and Alzheimer's Prevention, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Daniel Levy
- NHLBI Framingham Heart Study, Framingham, MA, 01702, USA
- Population Sciences Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD, 20892, USA
| | - Walter R Palmas
- Division of General Medicine, Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA
| | - A C Pereira
- Laboratory of Genetics and Molecular Cardiology, Heart Institute (InCor), University of São Paulo Medical School, São Paulo, SP, 5403000, Brazil
| | - Michael M Province
- Division of Statistical Genomics, Department of Genetics, Washington University School of Medicine, St. Louis, MO, 63108, USA
| | - Bruce M Psaty
- Cardiovascular Health Research Unit, Epidemiology, Medicine and Health Services, University of Washington, Seattle, WA, 98101, USA
- Kaiser Permanente Washington Health Research Institute, Seattle, WA, 98101, USA
| | - Paul M Ridker
- Harvard Medical School, Boston, MA, 02115, USA
- Brigham and Women's Hospital, Boston, MA, 02215, USA
| | - Charles N Rotimi
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - E Shyong Tai
- Saw Swee Hock School of Public Health, National University Health System and National University of Singapore, Singapore, 117549, Singapore
- Health Services and Systems Research, Duke-NUS Medical School, Singapore, 169857, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119228, Singapore
| | - Rob M van Dam
- Saw Swee Hock School of Public Health, National University Health System and National University of Singapore, Singapore, 117549, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119228, Singapore
| | - Cornelia M van Duijn
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Tien Yin Wong
- Ocular Epidemiology, Singapore Eye Research Institute, Singapore National Ecy Centre, Singapore, 169856, Singapore
- Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore, 169857, Singapore
| | - Kenneth Rice
- Department of Biostatistics, University of Washington, Seattle, WA, 98195, USA
| | - W James Gauderman
- Biostatistics, Preventive Medicine, University of Southern California, Los Angeles, CA, 90032, USA
| | - Alanna C Morrison
- Human Genetics Center, Department of Epidemiology, Human Genetics, and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Kari E North
- Epidemiology, University of North Carolina Gilling School of Global Public Health, Chapel Hill, NC, 27514, USA
| | - Sharon L R Kardia
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Mark J Caulfield
- Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
- NIHR Barts Cardiovascular Biomedical Research Unit, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, London, EC1M 6BQ, UK
| | - Paul Elliott
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, W2 1PG, UK
- MRC-PHE Centre for Environment and Health, Imperial College London, London, W2 1PG, UK
| | - Patricia B Munroe
- Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
- NIHR Barts Cardiovascular Biomedical Research Unit, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, London, EC1M 6BQ, UK
| | - Paul W Franks
- Department of Clinical Sciences, Genetic and Molecular Epidemiology Unit, Lund University Diabetes Centre, Skåne University Hospital, Malmö, Skåne, 205 02, Sweden
- Department of Public Health & Clinical Medicine, Umeå University, Umeå, Västerbotten, 901 85, Sweden
| | - Dabeeru C Rao
- Division of Biostatistics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Myriam Fornage
- Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, 70808, USA
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Relaix F, Bencze M, Borok MJ, Der Vartanian A, Gattazzo F, Mademtzoglou D, Perez-Diaz S, Prola A, Reyes-Fernandez PC, Rotini A, Taglietti. Perspectives on skeletal muscle stem cells. Nat Commun 2021; 12:692. [PMID: 33514709 PMCID: PMC7846784 DOI: 10.1038/s41467-020-20760-6] [Citation(s) in RCA: 158] [Impact Index Per Article: 52.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 12/17/2020] [Indexed: 01/30/2023] Open
Abstract
Skeletal muscle has remarkable regeneration capabilities, mainly due to its resident muscle stem cells (MuSCs). In this review, we introduce recently developed technologies and the mechanistic insights they provide to the understanding of MuSC biology, including the re-definition of quiescence and Galert states. Additionally, we present recent studies that link MuSC function with cellular heterogeneity, highlighting the complex regulation of self-renewal in regeneration, muscle disorders and aging. Finally, we discuss MuSC metabolism and its role, as well as the multifaceted regulation of MuSCs by their niche. The presented conceptual advances in the MuSC field impact on our general understanding of stem cells and their therapeutic use in regenerative medicine.
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Affiliation(s)
- F. Relaix
- grid.462410.50000 0004 0386 3258Univ Paris Est Creteil, INSERM, IMRB, 94010 Creteil, France ,EnvA, IMRB, 94700 Maisons-Alfort, France ,grid.462410.50000 0004 0386 3258EFS, IMRB, 94010 Creteil, France ,grid.50550.350000 0001 2175 4109AP-HP, Hopital Mondor, Service d’histologie, 94010 Creteil, France
| | - M. Bencze
- grid.462410.50000 0004 0386 3258Univ Paris Est Creteil, INSERM, IMRB, 94010 Creteil, France
| | - M. J. Borok
- grid.462410.50000 0004 0386 3258Univ Paris Est Creteil, INSERM, IMRB, 94010 Creteil, France
| | - A. Der Vartanian
- grid.462410.50000 0004 0386 3258Univ Paris Est Creteil, INSERM, IMRB, 94010 Creteil, France
| | - F. Gattazzo
- grid.462410.50000 0004 0386 3258Univ Paris Est Creteil, INSERM, IMRB, 94010 Creteil, France ,grid.462410.50000 0004 0386 3258EFS, IMRB, 94010 Creteil, France
| | - D. Mademtzoglou
- grid.462410.50000 0004 0386 3258Univ Paris Est Creteil, INSERM, IMRB, 94010 Creteil, France
| | - S. Perez-Diaz
- grid.462410.50000 0004 0386 3258Univ Paris Est Creteil, INSERM, IMRB, 94010 Creteil, France
| | - A. Prola
- grid.462410.50000 0004 0386 3258Univ Paris Est Creteil, INSERM, IMRB, 94010 Creteil, France ,EnvA, IMRB, 94700 Maisons-Alfort, France
| | - P. C. Reyes-Fernandez
- grid.462410.50000 0004 0386 3258Univ Paris Est Creteil, INSERM, IMRB, 94010 Creteil, France
| | - A. Rotini
- grid.462410.50000 0004 0386 3258Univ Paris Est Creteil, INSERM, IMRB, 94010 Creteil, France
| | - Taglietti
- grid.462410.50000 0004 0386 3258Univ Paris Est Creteil, INSERM, IMRB, 94010 Creteil, France
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9
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Chen X, Sun Y, Zhang T, Roepstorff P, Yang F. Comprehensive Analysis of the Proteome and PTMomes of C2C12 Myoblasts Reveals that Sialylation Plays a Role in the Differentiation of Skeletal Muscle Cells. J Proteome Res 2020; 20:222-235. [PMID: 33216553 DOI: 10.1021/acs.jproteome.0c00353] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The C2C12 myoblast is a model that has been used extensively to study the process of skeletal muscle differentiation. Proteomics has advanced our understanding of skeletal muscle biology and also the differentiation process of skeletal muscle cells. However, there is still no comprehensive analysis of C2C12 myoblast proteomes, which is important for the understanding of key drivers for the differentiation of skeletal muscle cells. Here, we conducted multidimensional proteome profiling to get a comprehensive analysis of proteomes and PTMomes of C2C12 myoblasts with a TiSH strategy. A total of 8313 protein groups were identified, including 7827 protein groups from nonmodified peptides, 3803 phosphoproteins, and 977 formerly sialylated N-linked glycoproteins. Integrated analysis of proteomic and PTMomic data showed that almost all of the kinases and transcription factors in the muscle cell differentiation pathway were phosphorylated. Further analysis indicated that sialylation might play a role in the differentiation of C2C12 myoblasts. Further functional analysis demonstrated that C2C12 myoblasts showed a decreased level of sialylation during skeletal muscle cell differentiation. Inhibition of sialylation with the sialyltransferase inhibitor 3Fax-Neu5Ac resulted in the lower expression of MHC and suppression of myoblast fusion. In all, these results indicate that sialylation has an effect on the differentiation of skeletal muscle cells.
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Affiliation(s)
- Xiulan Chen
- Key Laboratory of Protein and Peptide Pharmaceuticals & Laboratory of Proteomics, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100149, China
| | - Yaping Sun
- Key Laboratory of Protein and Peptide Pharmaceuticals & Laboratory of Proteomics, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100149, China
| | - Tingting Zhang
- Key Laboratory of Protein and Peptide Pharmaceuticals & Laboratory of Proteomics, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100149, China
| | - Peter Roepstorff
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark
| | - Fuquan Yang
- Key Laboratory of Protein and Peptide Pharmaceuticals & Laboratory of Proteomics, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100149, China
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10
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Tomida T, Adachi-Akahane S. [Roles of p38 MAPK signaling in the skeletal muscle formation, regeneration, and pathology]. Nihon Yakurigaku Zasshi 2020; 155:241-247. [PMID: 32612037 DOI: 10.1254/fpj20030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Sarcopenia and frailty in aging, or cancer cachexia shows an abnormal decrease in skeletal muscle mass and muscle strength. However, the underlying mechanisms are not clear, and the promising drug seeds have not been discovered. The formation of skeletal muscle occurs not only during embryonic development but also in adulthood, and the muscle can be regenerated even if it is damaged by exercise overload or physical injury. Although p38MAPK is ubiquitous among tissues and transmits signal of inflammation and environmental stress into the nucleus, it has been revealed that this kinase is deeply involved in maintaining skeletal muscle homeostasis. Knowledge of p38MAPK accumulated so far suggests that it not only functions as an on-off switch for gene expression, but also it balances cell proliferation and differentiation of progenitor cells to properly respond to muscle damage and repair muscle according to its surrounding environmental cues. In addition, its role in cell fusion to induce myotube formation has been recently revealed. On the other hand, it has been pointed out that in aging and chronic inflammation, excessive enhancement of the p38MAPK activity may disrupt skeletal muscle homeostasis and lead to muscle pathology. Interestingly, animal models have shown that pharmacological manipulation of p38MAPK activity can re-activate aged muscle satellite cells, suggesting the possibility of plastically manipulating skeletal muscle aging. Furthermore, it has become possible to track the dynamics of intracellular signaling of skeletal muscle cells or muscle progenitor cells in time and space by using advanced imaging techniques. In this review, we focus on the functional roles and regulatory mechanism of p38MAPK in skeletal muscle and its relation to the pathology in the context of dysregulation of skeletal muscle formation and regeneration.
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Affiliation(s)
- Taichiro Tomida
- Department of Physiology, School of Medicine, Faculty of Medicine, Toho University
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11
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Bae JH, Hong M, Jeong HJ, Kim H, Lee SJ, Ryu D, Bae GU, Cho SC, Lee YS, Krauss RS, Kang JS. Satellite cell-specific ablation of Cdon impairs integrin activation, FGF signalling, and muscle regeneration. J Cachexia Sarcopenia Muscle 2020; 11:1089-1103. [PMID: 32103583 PMCID: PMC7432598 DOI: 10.1002/jcsm.12563] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 12/04/2019] [Accepted: 02/09/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Perturbation in cell adhesion and growth factor signalling in satellite cells results in decreased muscle regenerative capacity. Cdon (also called Cdo) is a component of cell adhesion complexes implicated in myogenic differentiation, but its role in muscle regeneration remains to be determined. METHODS We generated inducible satellite cell-specific Cdon ablation in mice by utilizing a conditional Cdon allele and Pax7 CreERT2 . To induce Cdon ablation, mice were intraperitoneally injected with tamoxifen (tmx). Using cardiotoxin-induced muscle injury, the effect of Cdon depletion on satellite cell function was examined by histochemistry, immunostaining, and 5-ethynyl-2'-deoxyuridine (EdU) incorporation assay. Isolated myofibers or myoblasts were utilized to determine stem cell function and senescence. To determine pathways related to Cdon deletion, injured muscles were subjected to RNA sequencing analysis. RESULTS Satellite cell-specific Cdon ablation causes impaired muscle regeneration with fibrosis, likely attributable to decreased proliferation, and senescence, of satellite cells. Cultured Cdon-depleted myofibers exhibited 32 ± 9.6% of EdU-positive satellite cells compared with 58 ± 4.4% satellite cells in control myofibers (P < 0.05). About 32.5 ± 3.7% Cdon-ablated myoblasts were positive for senescence-associated β-galactosidase (SA-β-gal) while only 3.6 ± 0.5% of control satellite cells were positive (P < 0.001). Transcriptome analysis of muscles at post-injury Day 4 revealed alterations in genes related to mitogen-activated protein kinase signalling (P < 8.29 e-5 ) and extracellular matrix (P < 2.65 e-24 ). Consistent with this, Cdon-depleted tibialis anterior muscles had reduced phosphorylated extracellular signal-regulated kinase (p-ERK) protein levels and expression of ERK targets, such as Fos (0.23-fold) and Egr1 (0.31-fold), relative to mock-treated control muscles (P < 0.001). Cdon-depleted myoblasts exhibited impaired ERK activation in response to basic fibroblast growth factor. Cdon ablation resulted in decreased and/or mislocalized integrin β1 activation in satellite cells (weak or mislocalized integrin1 in tmx = 38.7 ± 1.9%, mock = 21.5 ± 6%, P < 0.05), previously linked with reduced fibroblast growth factor (FGF) responsiveness in aged satellite cells. In mechanistic studies, Cdon interacted with and regulated cell surface localization of FGFR1 and FGFR4, likely contributing to FGF responsiveness of satellite cells. Satellite cells from a progeria model, Zmpste24-/- myofibers, showed decreased Cdon levels (Cdon-positive cells in Zmpste24-/- = 63.3 ± 11%, wild type = 90 ± 7.7%, P < 0.05) and integrin β1 activation (weak or mislocalized integrin β1 in Zmpste24-/- = 64 ± 6.9%, wild type = 17.4 ± 5.9%, P < 0.01). CONCLUSIONS Cdon deficiency in satellite cells causes impaired proliferation of satellite cells and muscle regeneration via aberrant integrin and FGFR signalling.
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Affiliation(s)
- Ju-Hyeon Bae
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea.,Single Cell Network Research Center, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
| | - Mingi Hong
- Department of Cell, Developmental, and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Hyeon-Ju Jeong
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea.,Single Cell Network Research Center, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
| | - Hyebeen Kim
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea.,Single Cell Network Research Center, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
| | - Sang-Jin Lee
- Research Institute of Pharmaceutical Science, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
| | - Dongryeol Ryu
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea.,Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Gyu-Un Bae
- Research Institute of Pharmaceutical Science, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
| | - Sung Chun Cho
- Well Aging Research Center, DGIST, Daegu, Republic of Korea
| | - Young-Sam Lee
- Well Aging Research Center, DGIST, Daegu, Republic of Korea.,Department of New Biology, DGIST, Daegu, Republic of Korea
| | - Robert S Krauss
- Department of Cell, Developmental, and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jong-Sun Kang
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea.,Single Cell Network Research Center, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea.,Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, Republic of Korea
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12
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Yan Q, Zhu K, Zhang L, Fu Q, Chen Z, Liu S, Fu D, Nakazato R, Yoshioka K, Diao B, Ding G, Li X, Wang H. A negative feedback loop between JNK-associated leucine zipper protein and TGF-β1 regulates kidney fibrosis. Commun Biol 2020; 3:288. [PMID: 32504044 PMCID: PMC7275040 DOI: 10.1038/s42003-020-1008-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 05/17/2020] [Indexed: 12/26/2022] Open
Abstract
Renal fibrosis is controlled by profibrotic and antifibrotic forces. Exploring anti-fibrosis factors and mechanisms is an attractive strategy to prevent organ failure. Here we identified the JNK-associated leucine zipper protein (JLP) as a potential endogenous antifibrotic factor. JLP, predominantly expressed in renal tubular epithelial cells (TECs) in normal human or mouse kidneys, was downregulated in fibrotic kidneys. Jlp deficiency resulted in more severe renal fibrosis in unilateral ureteral obstruction (UUO) mice, while renal fibrosis resistance was observed in TECs-specific transgenic Jlp mice. JLP executes its protective role in renal fibrosis via negatively regulating TGF-β1 expression and autophagy, and the profibrotic effects of ECM production, epithelial-to-mesenchymal transition (EMT), apoptosis and cell cycle arrest in TECs. We further found that TGF-β1 and FGF-2 could negatively regulate the expression of JLP. Our study suggests that JLP plays a central role in renal fibrosis via its negative crosstalk with the profibrotic factor, TGF-β1. Qi Yan et al. find that JNK-associated leucine zipper protein (Jlp) counteracts the profibrotic effects of TGF-β1 and autophagy on renal tubular epithelial cells and that TGF-β1 and FGF-2 can negatively regulate the expression of Jlp. These findings provide insights into the role of Jlp in kidney fibrosis.
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Affiliation(s)
- Qi Yan
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China.,Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Zhu
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lu Zhang
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China.,Department of Internal Medicine, and Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Qiang Fu
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhaowei Chen
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Shan Liu
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Dou Fu
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ryota Nakazato
- Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Katsuji Yoshioka
- Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Bo Diao
- Department of Medical Laboratory Center, General Hospital of Central Theater Command, Wuhan, China
| | - Guohua Ding
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xiaogang Li
- Department of Internal Medicine, and Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Huiming Wang
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China.
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13
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Go GY, Jo A, Seo DW, Kim WY, Kim YK, So EY, Chen Q, Kang JS, Bae GU, Lee SJ. Ginsenoside Rb1 and Rb2 upregulate Akt/mTOR signaling-mediated muscular hypertrophy and myoblast differentiation. J Ginseng Res 2020; 44:435-441. [PMID: 32372865 PMCID: PMC7195574 DOI: 10.1016/j.jgr.2019.01.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 01/15/2019] [Accepted: 01/25/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND As a process of aging, skeletal muscle mass and function gradually decrease. It is reported that ginsenoside Rb1 and Rb2 play a role as AMP-activated protein kinase activator, resulting in regulating glucose homeostasis, and Rb1 reduces oxidative stress in aged skeletal muscles through activating the phosphatidylinositol 3-kinase/Akt/Nrf2 pathway. We examined the effects of Rb1 and Rb2 on differentiation of the muscle stem cells and myotube formation. METHODS C2C12 myoblasts treated with Rb1 and/or Rb2 were differentiated and induced to myotube formation, followed by immunoblotting for myogenic marker proteins, such as myosin heavy chain, MyoD, and myogenin, or immunostaining for myosin heavy chain or immunoprecipitation analysis for heterodimerization of MyoD/E-proteins. RESULTS Rb1 and Rb2 enhanced myoblast differentiation through accelerating MyoD/E-protein heterodimerization and increased myotube hypertrophy, accompanied by activation of Akt/mammalian target of rapamycin signaling. In addition, Rb1 and Rb2 induced the MyoD-mediated transdifferentiation of the rhabdomyosarcoma cells into myoblasts. Furthermore, co-treatment with Rb1 and Rb2 had synergistically enhanced myoblast differentiation through Akt activation. CONCLUSION Rb1 and Rb2 upregulate myotube growth and myogenic differentiation through activating Akt/mammalian target of rapamycin signaling and inducing myogenic conversion of fibroblasts. Thus, our first finding indicates that Rb1 and Rb2 have strong potential as a helpful remedy to prevent and treat muscle atrophy, such as age-related muscular dystrophy.
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Affiliation(s)
- Ga-Yeon Go
- Research Institute of Pharmaceutical Science, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
| | - Ayoung Jo
- Research Institute of Pharmaceutical Science, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
| | - Dong-Wan Seo
- College of Pharmacy, Dankook University, Cheonan, Republic of Korea
| | - Woo-Young Kim
- Research Institute of Pharmaceutical Science, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
| | - Yong Kee Kim
- Research Institute of Pharmaceutical Science, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
| | - Eui-Young So
- Division of Hematology/Oncology, Department of Medicine, Alpert Medical School of Brown University, Rhode Island Hospital, Providence, USA
| | - Qian Chen
- Department of Orthopaedics, Alpert Medical School of Brown University/Rhode Island Hospital, Providence, USA
| | - Jong-Sun Kang
- Department of Molecular Cell Biology, Single Cell Network Research Center, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
- Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Gyu-Un Bae
- Research Institute of Pharmaceutical Science, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
| | - Sang-Jin Lee
- Research Institute of Pharmaceutical Science, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
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14
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Lee SJ, Im M, Park SK, Kim JY, So EY, Liang OD, Kang JS, Bae GU. BST204, a Rg3 and Rh2 Enriched Ginseng Extract, Upregulates Myotube Formation and Mitochondrial Function in TNF-α-Induced Atrophic Myotubes. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2020; 48:631-650. [PMID: 32329640 DOI: 10.1142/s0192415x20500329] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The loss of skeletal muscle mass and function is a serious consequence of chronic diseases and aging. BST204 is a purified ginseng (the root of Panax ginseng) extract that has been processed using ginsenoside-β-glucosidase and acid hydrolysis to enrich ginsenosides Rg3 and Rh2 from the crude ginseng. BST204 has a broad range of health benefits, but its effects and mechanism on muscle atrophy are currently unknown. In this study, we have examined the effects and underlying mechanisms of BST204 on myotube formation and myotube atrophy induced by tumor necrosis factor-α (TNF-α). BST204 promotes myogenic differentiation and multinucleated myotube formation through Akt activation. BST204 prevents myotube atrophy induced by TNF-α through the activation of Akt/mTOR signaling and down-regulation of muscle-specific ubiquitin ligases, MuRF1, and Atrogin-1. Furthermore, BST204 treatment in atrophic myotubes suppresses mitochondrial reactive oxygen species (ROS) production and regulates mitochondrial transcription factors such as NRF1 and Tfam, through enhancing the activity and expression of peroxisome proliferator-activated receptor-γ coactivator1α (PGC1α). Collectively, our findings indicate that BST204 improves myotube formation and PGC1α-mediated mitochondrial function, suggesting that BST204 is a potential therapeutic or neutraceutical remedy to intervene muscle weakness and atrophy.
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Affiliation(s)
- Sang-Jin Lee
- Research Institute of Pharmaceutical Science, College of Pharmacy, Sookmyung Women's University, Seoul 04310, Republic of Korea
| | - Minju Im
- Green Cross Wellbeing Co., Ltd., Seongnam 13595, Republic of Korea
| | - Sun Kyu Park
- Green Cross Wellbeing Co., Ltd., Seongnam 13595, Republic of Korea
| | - Jeom-Yong Kim
- Green Cross Wellbeing Co., Ltd., Seongnam 13595, Republic of Korea
| | - Eui-Young So
- Division of Hematology/Oncology, Department of Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI 02903, USA
| | - Olin D Liang
- Division of Hematology/Oncology, Department of Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI 02903, USA
| | - Jong-Sun Kang
- Department of Molecular Cell Biology, Single Cell Network Research Center, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea
| | - Gyu-Un Bae
- Research Institute of Pharmaceutical Science, College of Pharmacy, Sookmyung Women's University, Seoul 04310, Republic of Korea
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15
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Lee CM, Aizawa K, Jiang J, Kung SKP, Jain R. JLP-centrosome is essential for the microtubule-mediated nucleocytoplasmic transport induced by extracellular stimuli. SCIENCE ADVANCES 2019; 5:eaav0318. [PMID: 31803841 PMCID: PMC6874495 DOI: 10.1126/sciadv.aav0318] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 07/18/2019] [Indexed: 06/10/2023]
Abstract
JLP belongs to the JIP family whose members serve as scaffolding proteins that link motor proteins and their cargo for intracellular transport. Although JLP is mainly cytoplasmic, it accumulates as a focus in the perinuclear region when stimulated by extracellular stimuli. Focus formation, which changes the nucleus shape and concentrates the nuclear pores, depends on p38MAPK activation and the dynein retrograde motor protein complex. Extracellular stimuli trigger the tethering of PLK1 to the centrosome by JLP, leading to centrosome maturation and microtubule array formation. The centrosome localization domain of JLP is important for the binding of the centrosome and the formation of the JLP focus and the microtubule array. Furthermore, the formation of the JLP focus and the microtubule array is interdependent and important for the transport of NF-κB p65 to the nucleus and its unloading therein. In conclusion, JLP exhibits multiple functions in the nuclear translocation of NF-κB p65.
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Affiliation(s)
- Clement M. Lee
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Ken Aizawa
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Joshua Jiang
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Sam K. P. Kung
- Department of Immunology College of Medicine, Faculty of Health Science, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Rinku Jain
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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16
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Hsp70 Interacts with Mitogen-Activated Protein Kinase (MAPK)-Activated Protein Kinase 2 To Regulate p38MAPK Stability and Myoblast Differentiation during Skeletal Muscle Regeneration. Mol Cell Biol 2018; 38:MCB.00211-18. [PMID: 30275345 DOI: 10.1128/mcb.00211-18] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 09/26/2018] [Indexed: 12/24/2022] Open
Abstract
The regenerative process of injured muscle is dependent on the fusion and differentiation of myoblasts derived from muscle stem cells. Hsp70 is important for maintaining skeletal muscle homeostasis and regeneration, but the precise cellular mechanism remains elusive. In this study, we found that Hsp70 was upregulated during myoblast differentiation. Depletion or inhibition of Hsp70/Hsc70 impaired myoblast differentiation. Importantly, overexpression of p38 mitogen-activated protein kinase α (p38MAPKα) but not AKT1 rescued the impairment of myogenic differentiation in Hsp70- or Hsc70-depleted myoblasts. Moreover, Hsp70 interacted with MK2, a substrate of p38MAPK, to regulate the stability of p38MAPK. Knockdown of Hsp70 also led to downregulation of both MK2 and p38MAPK in intact muscles and during cardiotoxin-induced muscle regeneration. Hsp70 bound MK2 to regulate MK2-p38MAPK interaction in myoblasts. We subsequently identified the essential regions required for Hsp70-MK2 interaction. Functional analyses showed that MK2 is essential for both myoblast differentiation and skeletal muscle regeneration. Taken together, our findings reveal a novel role of Hsp70 in regulating myoblast differentiation by interacting with MK2 to stabilize p38MAPK.
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17
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Cerquone Perpetuini A, Re Cecconi AD, Chiappa M, Martinelli GB, Fuoco C, Desiderio G, Castagnoli L, Gargioli C, Piccirillo R, Cesareni G. Group I Paks support muscle regeneration and counteract cancer-associated muscle atrophy. J Cachexia Sarcopenia Muscle 2018; 9:727-746. [PMID: 29781585 PMCID: PMC6104114 DOI: 10.1002/jcsm.12303] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/02/2018] [Accepted: 03/06/2018] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Skeletal muscle is characterized by an efficient regeneration potential that is often impaired during myopathies. Understanding the molecular players involved in muscle homeostasis and regeneration could help to find new therapies against muscle degenerative disorders. Previous studies revealed that the Ser/Thr kinase p21 protein-activated kinase 1 (Pak1) was specifically down-regulated in the atrophying gastrocnemius of Yoshida hepatoma-bearing rats. In this study, we evaluated the role of group I Paks during cancer-related atrophy and muscle regeneration. METHODS We examined Pak1 expression levels in the mouse Tibialis Anterior muscles during cancer cachexia induced by grafting colon adenocarcinoma C26 cells and in vitro by dexamethasone treatment. We investigated whether the overexpression of Pak1 counteracts muscle wasting in C26-bearing mice and in vitro also during interleukin-6 (IL6)-induced or dexamethasone-induced C2C12 atrophy. Moreover, we analysed the involvement of group I Paks on myogenic differentiation in vivo and in vitro using the group I chemical inhibitor IPA-3. RESULTS We found that Pak1 expression levels are reduced during cancer-induced cachexia in the Tibialis Anterior muscles of colon adenocarcinoma C26-bearing mice and in vitro during dexamethasone-induced myotube atrophy. Electroporation of muscles of C26-bearing mice with plasmids directing the synthesis of PAK1 preserves fiber size in cachectic muscles by restraining the expression of atrogin-1 and MuRF1 and possibly by inducing myogenin expression. Consistently, the overexpression of PAK1 reduces the dexamethasone-induced expression of MuRF1 in myotubes and increases the phospho-FOXO3/FOXO3 ratio. Interestingly, the ectopic expression of PAK1 counteracts atrophy in vitro by restraining the IL6-Stat3 signalling pathway measured in luciferase-based assays and by reducing rates of protein degradation in atrophying myotubes exposed to IL6. On the other hand, we observed that the inhibition of group I Paks has no effect on myotube atrophy in vitro and is associated with impaired muscle regeneration in vivo and in vitro. In fact, we found that mice treated with the group I inhibitor IPA-3 display a delayed recovery from cardiotoxin-induced muscle injury. This is consistent with in vitro experiments showing that IPA-3 impairs myogenin expression and myotube formation in vessel-associated myogenic progenitors, C2C12 myoblasts, and satellite cells. Finally, we observed that IPA-3 reduces p38α/β phosphorylation that is required to proceed through various stages of satellite cells differentiation: activation, asymmetric division, and ultimately myotube formation. CONCLUSIONS Our data provide novel evidence that is consistent with group I Paks playing a central role in the regulation of muscle homeostasis, atrophy and myogenesis.
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Affiliation(s)
| | - Andrea David Re Cecconi
- Department of NeurosciencesIRCCS‐Mario Negri Institute for Pharmacological ResearchVia Giuseppe La Masa20156MilanItaly
| | - Michela Chiappa
- Department of NeurosciencesIRCCS‐Mario Negri Institute for Pharmacological ResearchVia Giuseppe La Masa20156MilanItaly
| | - Giulia Benedetta Martinelli
- Department of NeurosciencesIRCCS‐Mario Negri Institute for Pharmacological ResearchVia Giuseppe La Masa20156MilanItaly
| | - Claudia Fuoco
- Department of BiologyUniversity of Rome Tor VergataVia della ricerca scientifica00133RomeItaly
| | - Giovanni Desiderio
- Department of BiologyUniversity of Rome Tor VergataVia della ricerca scientifica00133RomeItaly
| | - Luisa Castagnoli
- Department of BiologyUniversity of Rome Tor VergataVia della ricerca scientifica00133RomeItaly
| | - Cesare Gargioli
- Department of BiologyUniversity of Rome Tor VergataVia della ricerca scientifica00133RomeItaly
| | - Rosanna Piccirillo
- Department of NeurosciencesIRCCS‐Mario Negri Institute for Pharmacological ResearchVia Giuseppe La Masa20156MilanItaly
| | - Gianni Cesareni
- Department of BiologyUniversity of Rome Tor VergataVia della ricerca scientifica00133RomeItaly
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Irazoqui AP, De Genaro P, Buitrago C, Bachmann H, González-Pardo V, Russo de Boland A. 1α,25(OH) 2D 3-glycosides from Solanum glaucophyllum leaves extract induce myoblasts differentiation through p38 MAPK and AKT activation. Biol Open 2018; 7:bio.033670. [PMID: 29685991 PMCID: PMC5992525 DOI: 10.1242/bio.033670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We have previously shown that Solanum glaucophyllum leaf extract (SGE) increases VDR protein levels and promotes myoblast differentiation. Here, we investigated whether p38 MAPK and AKT are involved in SGE actions. Cell-cycle studies showed that SGE prompted a peak of S-phase followed by an arrest in the G0/G1-phase through p38 MAPK. Time course studies showed that p38 MAPK and AKT phosphorylation were statistically increased by SGE (10 nM) or synthetic 1α,25(OH)2D3 (1 nM) treatment. Furthermore, p38 MAPK and AKT inhibitors, SB203580 and LY294002 respectively, suppressed myoblasts fusion induced by SGE or synthetic 1α,25(OH)2D3 We have also studied differentiation genes by qRT-PCR. myoD1 mRNA increased significantly by SGE (24-72 h) or 1α,25(OH)2D3 (24 h) treatment. mRNA expression of myogenin also increased upon SGE or 1α,25(OH)2D3 treatment. Finally, MHC2b mRNA expression, a late differentiation marker, was increased significantly by both compounds at 72 h compared to control. Taken together, these results suggest that SGE, as synthetic 1α,25(OH)2D3, promotes myotube formation through p38 MAPK and AKT activation.
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Affiliation(s)
- Ana Paula Irazoqui
- Instituto de Ciencias Biológicas y Biomédicas del Sur (INBIOSUR), Universidad Nacional del Sur-CONICET, 8000 Bahía Blanca, Argentina
| | - Pablo De Genaro
- Instituto de Ciencias Biológicas y Biomédicas del Sur (INBIOSUR), Universidad Nacional del Sur-CONICET, 8000 Bahía Blanca, Argentina
| | - Claudia Buitrago
- Instituto de Ciencias Biológicas y Biomédicas del Sur (INBIOSUR), Universidad Nacional del Sur-CONICET, 8000 Bahía Blanca, Argentina.,Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, 8000 Bahía Blanca, Argentina
| | | | - Verónica González-Pardo
- Instituto de Ciencias Biológicas y Biomédicas del Sur (INBIOSUR), Universidad Nacional del Sur-CONICET, 8000 Bahía Blanca, Argentina .,Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, 8000 Bahía Blanca, Argentina
| | - Ana Russo de Boland
- Instituto de Ciencias Biológicas y Biomédicas del Sur (INBIOSUR), Universidad Nacional del Sur-CONICET, 8000 Bahía Blanca, Argentina
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Lee SJ, Vuong TA, Go GY, Song YJ, Lee S, Lee SY, Kim SW, Lee J, Kim YK, Seo DW, Kim KH, Kang JS, Bae GU. An isoflavone compound daidzein elicits myoblast differentiation and myotube growth. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.09.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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21
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Liu X, Liu Y, Zhao F, Hun T, Li S, Wang Y, Sun W, Wang W, Sun Y, Fan Y. Regulation of cell arrangement using a novel composite micropattern. J Biomed Mater Res A 2017; 105:3093-3101. [DOI: 10.1002/jbm.a.36157] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/16/2017] [Accepted: 07/07/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Xiaoyi Liu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beihang University; Beijing 100191 People's Republic of China
- State Key Laboratory of Transducer Technology; Chinese Academy of Sciences; Shanghai 200050 People's Republic of China
| | - Yaoping Liu
- Institute of Microelectronics, Peking University; Beijing 100871 People's Republic of China
| | - Feng Zhao
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beihang University; Beijing 100191 People's Republic of China
- State Key Laboratory of Transducer Technology; Chinese Academy of Sciences; Shanghai 200050 People's Republic of China
| | - Tingting Hun
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beihang University; Beijing 100191 People's Republic of China
- State Key Laboratory of Transducer Technology; Chinese Academy of Sciences; Shanghai 200050 People's Republic of China
| | - Shan Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beihang University; Beijing 100191 People's Republic of China
- State Key Laboratory of Transducer Technology; Chinese Academy of Sciences; Shanghai 200050 People's Republic of China
| | - Yuguang Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences; 100083 People's Republic of China
| | - Weijie Sun
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences; 100083 People's Republic of China
| | - Wei Wang
- Institute of Microelectronics, Peking University; Beijing 100871 People's Republic of China
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication; Beijing 100871 China
- Innovation Center for Micro-Nano-electronics and Integrated System; Beijing 100871 China
| | - Yan Sun
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beihang University; Beijing 100191 People's Republic of China
- State Key Laboratory of Transducer Technology; Chinese Academy of Sciences; Shanghai 200050 People's Republic of China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beihang University; Beijing 100191 People's Republic of China
- National Research Center for Rehabilitation Technical Aids; Beijing 100176 People's Republic of China
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22
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Go GY, Lee SJ, Jo A, Lee J, Seo DW, Kang JS, Kim SK, Kim SN, Kim YK, Bae GU. Ginsenoside Rg1 from Panax ginseng enhances myoblast differentiation and myotube growth. J Ginseng Res 2017; 41:608-614. [PMID: 29021711 PMCID: PMC5628345 DOI: 10.1016/j.jgr.2017.05.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 05/23/2017] [Accepted: 05/25/2017] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Ginsenoside Rg1 belongs to protopanaxatriol-type ginsenosides and has diverse pharmacological activities. In this report, we investigated whether Rg1 could upregulate muscular stem cell differentiation and muscle growth. METHODS C2C12 myoblasts, MyoD-transfected 10T1/2 embryonic fibroblasts, and HEK293T cells were treated with Rg1 and differentiated for 2 d, subjected to immunoblotting, immunocytochemistry, or immunoprecipitation. RESULTS Rg1 activated promyogenic kinases, p38MAPK (mitogen-activated protein kinase) and Akt signaling, that in turn promote the heterodimerization with MyoD and E proteins, resulting in enhancing myogenic differentiation. Through the activation of Akt/mammalian target of rapamycin pathway, Rg1 induced myotube growth and prevented dexamethasone-induced myotube atrophy. Furthermore, Rg1 increased MyoD-dependent myogenic conversion of fibroblast. CONCLUSION Rg1 upregulates promyogenic kinases, especially Akt, resulting in improvement of myoblast differentiation and myotube growth.
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Affiliation(s)
- Ga-Yeon Go
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
| | - Sang-Jin Lee
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
| | - Ayoung Jo
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
| | - Jaecheol Lee
- Division of Cardiology, Department of Medicine, Stanford University School of Medicine, CA, USA
| | - Dong-Wan Seo
- College of Pharmacy, Dankook University, Cheonan, Republic of Korea
| | - Jong-Sun Kang
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Samsung Biomedical Research Institute, Suwon, Republic of Korea
| | - Si-Kwan Kim
- Department of Biomedical Chemistry, College of Biomedical & Health Science, Konkuk University, Chungju, Republic of Korea
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Republic of Korea
| | - Yong Kee Kim
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
- Corresponding author. Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Cheongpa-ro 47-gil 100, Yongsan-Gu, Seoul 04310, Republic of Korea.Research Center for Cell Fate ControlCollege of PharmacySookmyung Women's UniversityCheongpa-ro 47-gil 100, Yongsan-GuSeoul04310Republic of Korea
| | - Gyu-Un Bae
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
- Corresponding author. Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Cheongpa-ro 47-gil 100, Yongsan-Gu, Seoul 04310, Republic of Korea.Research Center for Cell Fate ControlCollege of PharmacySookmyung Women's UniversityCheongpa-ro 47-gil 100, Yongsan-GuSeoul04310Republic of Korea
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Yan Q, Yang C, Fu Q, Chen Z, Liu S, Fu D, Rahman RN, Nakazato R, Yoshioka K, Kung SKP, Ding G, Wang H. Scaffold protein JLP mediates TCR-initiated CD4 +T cell activation and CD154 expression. Mol Immunol 2017; 87:258-266. [PMID: 28521278 DOI: 10.1016/j.molimm.2017.05.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 04/27/2017] [Accepted: 05/06/2017] [Indexed: 11/16/2022]
Abstract
CD4+ T-cell activation and its subsequent induction of CD154 (CD40 ligand, CD40L) expression are pivotal in shaping both the humoral and cellular immune responses. Scaffold protein JLP regulates signal transduction pathways and molecular trafficking inside cells, thus represents a critical component in maintaining cellular functions. Its role in regulating CD4+ T-cell activation and CD154 expression, however, is unclear. Here, we demonstrated expression of JLP in mouse tissues of lymph nodes, thymus, spleen, and also CD4+ T cells. Using CD4+ T cells from jlp-deficient and jlp-wild-type mice, we demonstrated that JLP-deficiency impaired T-cell proliferation, IL-2 production, and CD154 induction upon TCR stimulations, but had no impacts on the expression of other surface molecules such as CD25, CD69, and TCR. These observed impaired T-cell functions in the jlp-/- CD4+ T cells were associated with defective NF-AT activation and Ca2+ influx, but not the MAPK, NF-κB, as well as AP-1 signaling pathways. Our findings indicated that, for the first time, JLP plays a critical role in regulating CD4+ T cells response to TCR stimulation partly by mediating the activation of TCR-initiated Ca2+/NF-AT.
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Affiliation(s)
- Qi Yan
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China
| | - Cheng Yang
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China
| | - Qiang Fu
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China
| | - Zhaowei Chen
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China
| | - Shan Liu
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China
| | - Dou Fu
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China
| | - Rahmat N Rahman
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Canada
| | - Ryota Nakazato
- Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Katsuji Yoshioka
- Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Sam K P Kung
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Canada
| | - Guohua Ding
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China.
| | - Huiming Wang
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China.
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p38 MAPK activation and H3K4 trimethylation is decreased by lactate in vitro and high intensity resistance training in human skeletal muscle. PLoS One 2017; 12:e0176609. [PMID: 28467493 PMCID: PMC5414990 DOI: 10.1371/journal.pone.0176609] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 04/13/2017] [Indexed: 12/04/2022] Open
Abstract
Exercise induces adaptation of skeletal muscle by acutely modulating intracellular signaling, gene expression, protein turnover and myogenic activation of skeletal muscle stem cells (Satellite cells, SCs). Lactate (La)-induced metabolic stimulation alone has been shown to modify SC proliferation and differentiation. Although the mechanistic basis remains elusive, it was demonstrated that La affects signaling via p38 mitogen activated protein kinase (p38 MAPK) which might contribute to trimethylation of histone 3 lysine 4 (H3K4me3) known to regulate satellite cell proliferation and differentiation. We investigated the effects of La on p38 MAPK and H3K4me3 in a model of activated SCs. Differentiating C2C12 myoblasts were treated with La (20 mM) and samples analysed using qRT-PCR, immunofluorescence, and western blotting. We determined a reduction of p38 MAPK phosphorylation, decreased H3K4me3 and reduced expression of Myf5, myogenin, and myosin heavy chain (MHC) leading to decreased differentiation of La-treated C2C12 cells after 5 days of repeated La treatment. We further investigated whether this regulatory pathway would be affected in human skeletal muscle by the application of two different resistance exercise regimes (RE) associated with distinct metabolic demands and blood La accumulation. Muscle biopsies were obtained 15, 30 min, 1, 4, and 24 h post exercise after moderate intensity RE (STD) vs. high intensity RE (HIT). Consistent with in vitro results, reduced p38 phosphorylation and blunted H3K4me3 were also observed upon metabolically demanding HIT RE in human skeletal muscle. Our data provide evidence that La-accumulation acutely affects p38 MAPK signaling, gene expression and thereby cell differentiation and adaptation in vitro, and likely in vivo.
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25
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Group I Paks Promote Skeletal Myoblast Differentiation In Vivo and In Vitro. Mol Cell Biol 2017; 37:MCB.00222-16. [PMID: 27920252 DOI: 10.1128/mcb.00222-16] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 11/26/2016] [Indexed: 12/15/2022] Open
Abstract
Skeletal myogenesis is regulated by signal transduction, but the factors and mechanisms involved are not well understood. The group I Paks Pak1 and Pak2 are related protein kinases and direct effectors of Cdc42 and Rac1. Group I Paks are ubiquitously expressed and specifically required for myoblast fusion in Drosophila We report that both Pak1 and Pak2 are activated during mammalian myoblast differentiation. One pathway of activation is initiated by N-cadherin ligation and involves the cadherin coreceptor Cdo with its downstream effector, Cdc42. Individual genetic deletion of Pak1 and Pak2 in mice has no overt effect on skeletal muscle development or regeneration. However, combined muscle-specific deletion of Pak1 and Pak2 results in reduced muscle mass and a higher proportion of myofibers with a smaller cross-sectional area. This phenotype is exacerbated after repair to acute injury. Furthermore, primary myoblasts lacking Pak1 and Pak2 display delayed expression of myogenic differentiation markers and myotube formation. These results identify Pak1 and Pak2 as redundant regulators of myoblast differentiation in vitro and in vivo and as components of the promyogenic Ncad/Cdo/Cdc42 signaling pathway.
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26
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Krauss RS, Joseph GA, Goel AJ. Keep Your Friends Close: Cell-Cell Contact and Skeletal Myogenesis. Cold Spring Harb Perspect Biol 2017; 9:cshperspect.a029298. [PMID: 28062562 DOI: 10.1101/cshperspect.a029298] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Development of skeletal muscle is a multistage process that includes lineage commitment of multipotent progenitor cells, differentiation and fusion of myoblasts into multinucleated myofibers, and maturation of myofibers into distinct types. Lineage-specific transcriptional regulation lies at the core of this process, but myogenesis is also regulated by extracellular cues. Some of these cues are initiated by direct cell-cell contact between muscle precursor cells themselves or between muscle precursors and cells of other lineages. Examples of the latter include interaction of migrating neural crest cells with multipotent muscle progenitor cells, muscle interstitial cells with myoblasts, and neurons with myofibers. Among the signaling factors involved are Notch ligands and receptors, cadherins, Ig superfamily members, and Ephrins and Eph receptors. In this article we describe recent progress in this area and highlight open questions raised by the findings.
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Affiliation(s)
- Robert S Krauss
- Department of Cell, Developmental, and Regenerative Biology, Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, New York 10029
| | - Giselle A Joseph
- Department of Cell, Developmental, and Regenerative Biology, Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, New York 10029
| | - Aviva J Goel
- Department of Cell, Developmental, and Regenerative Biology, Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, New York 10029
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Abstract
Skeletal muscle stem cells, originally termed satellite cells for their position adjacent to differentiated muscle fibers, are absolutely required for the process of skeletal muscle repair and regeneration. In the last decade, satellite cells have become one of the most studied adult stem cell systems and have emerged as a standard model not only in the field of stem cell-driven tissue regeneration but also in stem cell dysfunction and aging. Here, we provide background in the field and discuss recent advances in our understanding of muscle stem cell function and dysfunction, particularly in the case of aging, and the potential involvement of muscle stem cells in genetic diseases such as the muscular dystrophies.
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Affiliation(s)
- Ddw Cornelison
- Division of Biological Sciences and Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, USA.
| | - Eusebio Perdiguero
- Cell Biology Group, Department of Experimental and Health Sciences (DCEXS), Pompeu Fabra University (UPF), CIBER on Neurodegenerative Diseases (CIBERNED), 08003, Barcelona, Spain.
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Regulation of Skeletal Myoblast Differentiation by Drebrin. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1006:361-373. [DOI: 10.1007/978-4-431-56550-5_22] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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29
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Vuong TA, Leem YE, Kim BG, Cho H, Lee SJ, Bae GU, Kang JS. A Sonic hedgehog coreceptor, BOC regulates neuronal differentiation and neurite outgrowth via interaction with ABL and JNK activation. Cell Signal 2016; 30:30-40. [PMID: 27871935 DOI: 10.1016/j.cellsig.2016.11.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 11/17/2016] [Indexed: 12/21/2022]
Abstract
Neurite outgrowth is a critical step for neurogenesis and remodeling synaptic circuitry during neuronal development and regeneration. An immunoglobulin superfamily member, BOC functions as Sonic hedgehog (Shh) coreceptor in canonical and noncanonical Shh signaling in neuronal development and axon outgrowth/guidance. However signaling mechanisms responsible for BOC action during these processes remain unknown. In our previous studies, a multiprotein complex containing BOC and a closely related protein CDO promotes myogenic differentiation through activation of multiple signaling pathways, including non-receptor tyrosine kinase ABL. Given that ABL and Jun. N-terminal kinase (JNK) are implicated in actin cytoskeletal dynamics required for neurogenesis, we investigated the relationship between BOC, ABL and JNK during neuronal differentiation. Here, we demonstrate that BOC and ABL are induced in P19 embryonal carcinoma (EC) cells and cortical neural progenitor cells (NPCs) during neuronal differentiation. BOC-depleted EC cells or Boc-/- NPCs exhibit impaired neuronal differentiation with shorter neurite formation. BOC interacts with ABL through its putative SH2 binding domain and seems to be phosphorylated in an ABL activity-dependent manner. Unlike wildtype BOC, ABL-binding defective BOC mutants exhibit impaired JNK activation and neuronal differentiation. Finally, Shh treatment enhances JNK activation which is diminished by BOC depletion. These data suggest that BOC interacts with ABL and activates JNK thereby promoting neuronal differentiation and neurite outgrowth.
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Affiliation(s)
- Tuan Anh Vuong
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Samsung Biomedical Research Institute, Suwon 16419, Republic of Korea
| | - Young-Eun Leem
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Samsung Biomedical Research Institute, Suwon 16419, Republic of Korea
| | - Bok-Geon Kim
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Samsung Biomedical Research Institute, Suwon 16419, Republic of Korea
| | - Hana Cho
- Department of Physiology, Sungkyunkwan University School of Medicine, Samsung Biomedical Research Institute, Suwon 16419, Republic of Korea
| | - Sang-Jin Lee
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 04310, Republic of Korea
| | - Gyu-Un Bae
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 04310, Republic of Korea
| | - Jong-Sun Kang
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Samsung Biomedical Research Institute, Suwon 16419, Republic of Korea.
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30
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Wang LC, Kennedy TE, Almazan G. A novel function of TBK1 as a target of Cdon in oligodendrocyte differentiation and myelination. J Neurochem 2016; 140:451-462. [PMID: 27797401 DOI: 10.1111/jnc.13882] [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: 06/03/2016] [Revised: 09/21/2016] [Accepted: 10/25/2016] [Indexed: 11/28/2022]
Abstract
During central nervous system development, oligodendrocyte progenitors elaborate multiple branched processes to contact axons and initiate myelination. Using cultured primary rat oligodendrocytes (OLGs), we have recently demonstrated that a cell surface protein belonging to the immunoglobulin superfamily, cell adhesion molecule-related, down-regulated by oncogenes (Cdon), is important in initiating OLG differentiation and axon myelination by promoting the formation of branched cellular processes; however, the molecular mechanism by which Cdon regulates OLG differentiation is not known. Here, using Cdon immunoprecipitation (IP) and liquid chromatography-tandem mass spectrometry analysis, we identified serine/threonine kinase TANK-binding kinase 1 (TBK1) as a candidate novel target of Cdon. We confirmed this interaction using co-IP and immunofluorescence with TBK1 antibodies, showing that TBK1 partly co-localizes with Cdon along cellular processes in puncta-like structures. We show that TBK1 is expressed throughout OLG differentiation, and surprisingly, that levels of phosphorylated TBK1 (ser172) increase during OLG maturation, while total levels of TBK1 protein decrease. To investigate function, TBK1 expression was knocked down using siRNA in OLG primary cultures, reducing protein levels by 69%. Two myelin-specific proteins, myelin basic protein and myelin-associated glycoprotein, were similarly reduced when examined at day 2 and day 4 of OLG differentiation. Reduced Cdon or TBK1 expression also decreased Akt phosphorylation at Threonine 308 in OLG. Our findings provide evidence that a Cdon-TBK1 complex is associated with Akt phosphorylation and early OLG differentiation.
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Affiliation(s)
- Li-Chun Wang
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
| | - Timothy E Kennedy
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Guillermina Almazan
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
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PKN2 and Cdo interact to activate AKT and promote myoblast differentiation. Cell Death Dis 2016; 7:e2431. [PMID: 27763641 PMCID: PMC5133968 DOI: 10.1038/cddis.2016.296] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 08/10/2016] [Accepted: 08/22/2016] [Indexed: 01/01/2023]
Abstract
Skeletal myogenesis is coordinated by multiple signaling pathways that control cell adhesion/migration, survival and differentiation accompanied by muscle-specific gene expression. A cell surface protein Cdo is involved in cell contact-mediated promyogenic signals through activation of p38MAPK and AKT. Protein kinase C-related kinase 2 (PKN2/PRK2) is implicated in regulation of various biological processes, including cell migration, adhesion and death. It has been shown to interact with and inhibit AKT thereby inducing cell death. This led us to investigate the role of PKN2 in skeletal myogenesis and the crosstalk between PKN2 and Cdo. Like Cdo, PKN2 was upregulated in C2C12 myoblasts during differentiation and decreased in cells with Cdo depletion caused by shRNA or cultured on integrin-independent substratum. This decline of PKN2 levels resulted in diminished AKT activation during myoblast differentiation. Consistently, PKN2 overexpression-enhanced C2C12 myoblast differentiation, whereas PKN2-depletion impaired it, without affecting cell survival. PKN2 formed complexes with Cdo, APPL1 and AKT via its C-terminal region and this interaction appeared to be important for induction of AKT activity as well as myoblast differentiation. Furthermore, PKN2-enhanced MyoD-responsive reporter activities by mediating the recruitment of BAF60c and MyoD to the myogenin promoter. Taken together, PKN2 has a critical role in cell adhesion-mediated AKT activation during myoblast differentiation.
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32
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Yoo M, Lee SJ, Kim YK, Seo DW, Baek NI, Ryu JH, Kang JS, Bae GU. Dehydrocorydaline promotes myogenic differentiation via p38 MAPK activation. Mol Med Rep 2016; 14:3029-36. [PMID: 27573543 PMCID: PMC5042734 DOI: 10.3892/mmr.2016.5653] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Accepted: 08/05/2016] [Indexed: 01/07/2023] Open
Abstract
Muscle regeneration is a coordinated process that involves proliferation and differentiation of muscle progenitor cells. Activation of MyoD is a key event in myogenic differentiation, which is regulated by p38 mitogen‑activated protein kinases (MAPK). In a screen of natural compounds for the enhancement of MyoD activity, dehydrocorydaline (DHC) from the Corydalis tuber was identified. Treatment of C2C12 myoblasts with DHC increased the expression levels of muscle‑specific proteins, including MyoD, myogenin and myosin heavy chain. In addition, C2C12 myoblasts exhibited enhanced multinucleated myotube formation without any cytotoxicity. Treatment with DHC elevated p38 MAPK activation and the interaction of MyoD with an E protein, which is likely to result in activation of MyoD and promotion of myoblast differentiation. Furthermore, defects in differentiation‑induced p38 MAPK activation and myoblast differentiation induced by depletion of the promyogenic receptor protein Cdo in C2C12 myoblasts were restored by DHC treatment. In conclusion, these results indicated that DHC stimulates p38 MAPK activation, which can enhance heterodimerization of MyoD and E proteins, thus resulting in MyoD activation and myoblast differentiation. These findings suggested that DHC may be considered a potential therapeutic compound for the improvement of muscle stem cell regenerative capacity in injured muscle.
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Affiliation(s)
- Miran Yoo
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140‑742, Republic of Korea
| | - Sang-Jin Lee
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140‑742, Republic of Korea
| | - Yong Kee Kim
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140‑742, Republic of Korea
| | - Dong-Wan Seo
- Department of Biochemistry, College of Pharmacy, Dankook University, Cheonan, Chungcheongnam 330‑714, Republic of Korea
| | - Nam-In Baek
- Department of Oriental Medicine, The Graduate School of Biotechnology, Institute of Life Sciences & Resources, Kyung Hee University, Yongin, Gyeonggi 446‑701, Republic of Korea
| | - Jae-Ha Ryu
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140‑742, Republic of Korea
| | - Jong-Sun Kang
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Samsung Biomedical Research Institute, Suwon, Gyeonggi 440‑746, Republic of Korea
| | - Gyu-Un Bae
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140‑742, Republic of Korea
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Xiao C, Fu L, Yan C, Shou F, Liu Q, Li L, Cui S, Duan J, Jin G, Chen J, Bian Y, Wang X, Wang H. SPAG9 is overexpressed in osteosarcoma, and regulates cell proliferation and invasion through regulation of JunD. Oncol Lett 2016; 12:2674-2679. [PMID: 27698841 DOI: 10.3892/ol.2016.4920] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Accepted: 04/04/2016] [Indexed: 01/23/2023] Open
Abstract
Sperm-associated antigen 9 (SPAG9) is a recently characterized oncoprotein that is considered to be involved in several forms of malignant tumor. However, its biological function and expression pattern in human osteosarcoma have not yet been elucidated. In the present study, SPAG9 expression was analyzed in 58 cases of human osteosarcoma by immunohistochemistry. The results demonstrated that SPAG9 was overexpressed in 63.8% (37/58) of osteosarcoma tissues, while normal bone tissues exhibited negative SPAG9 expression. SPAG9 small interfering RNA was employed in the U2OS cell line, which has high endogenous expression, and SPAG9 transfection was performed in the MG63 cell line, which has low endogenous expression. MTT and Matrigel invasion assays demonstrated that SPAG-9-knockdown significantly reduced U2OS cell invasion and proliferation, while SPAG9 transfection enhanced MG63 cell proliferation and invasion. Furthermore, it was observed that SPAG9 positively regulated cyclin D1, phosphorylated-c-Jun NH2-terminal kinase (JNK) and JunD expression. Treatment with the JNK inhibitor, SP600125, abolished the upregulatory effect of SPAG9 on JunD. Taken together, the present study identified SPAG9 as a critical oncoprotein involved in osteosarcoma proliferation and invasion, possibly functioning through JNK-JunD signaling.
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Affiliation(s)
- Chi Xiao
- Department of Orthopaedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Lin Fu
- Department of Pathology, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Chongnan Yan
- Department of Orthopaedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Fenyong Shou
- Department of Orthopaedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Qi Liu
- Department of Orthopaedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Lei Li
- Department of Orthopaedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Shaoqian Cui
- Department of Orthopaedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Jingzhu Duan
- Department of Orthopaedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Guoxin Jin
- Department of Orthopaedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Jianhua Chen
- Department of Orthopaedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yuanming Bian
- Department of Orthopaedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Xu Wang
- Department of Orthopaedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Huan Wang
- Department of Orthopaedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
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Leem YE, Jeong HJ, Kim HJ, Koh J, Kang K, Bae GU, Cho H, Kang JS. Cdo Regulates Surface Expression of Kir2.1 K+ Channel in Myoblast Differentiation. PLoS One 2016; 11:e0158707. [PMID: 27380411 PMCID: PMC4933383 DOI: 10.1371/journal.pone.0158707] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 06/21/2016] [Indexed: 01/28/2023] Open
Abstract
A potassium channel Kir2.1-associated membrane hyperpolarization is required for myogenic differentiation. However the molecular regulatory mechanisms modulating Kir2.1 channel activities in early stage of myogenesis are largely unknown. A cell surface protein, Cdo functions as a component of multiprotein cell surface complexes to promote myogenesis. In this study, we report that Cdo forms a complex with Kir2.1 during myogenic differentiation, and is required for the channel activity by enhancing the surface expression of Kir2.1 in the early stage of differentiation. The expression of a constitutively active form of the upstream kinase for p38MAPK, MKK6(EE) can restore Kir2.1 activities in Cdo-depleted C2C12 cells, while the treatment with a p38MAPK inhibitor, SB203580 exhibits a similar effect of Cdo depletion on Kir2.1 surface expression. Furthermore, Cdo-/- primary myoblasts, which display a defective differentiation program, exhibit a defective Kir2.1 activity. Taken together, our results suggest that a promyogenic Cdo signaling is critical for Kir2.1 activities in the induction of myogenic differentiation.
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Affiliation(s)
- Young-Eun Leem
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
- Samsung Biomedical Research Institute, Suwon, Republic of Korea
| | - Hyeon-Ju Jeong
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
- Samsung Biomedical Research Institute, Suwon, Republic of Korea
| | - Hyun-Ji Kim
- Department of Physiology, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
- Samsung Biomedical Research Institute, Suwon, Republic of Korea
| | - Jewoo Koh
- Department of Physiology, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
- Samsung Biomedical Research Institute, Suwon, Republic of Korea
| | - KyeongJin Kang
- Department of Anatomy, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
- Samsung Biomedical Research Institute, Suwon, Republic of Korea
| | - Gyu-Un Bae
- Research Center for Cell Fate Control, Sookmyung Women’s University, Seoul, Republic of Korea
| | - Hana Cho
- Department of Physiology, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
- Samsung Biomedical Research Institute, Suwon, Republic of Korea
- * E-mail: (JSK); (HC)
| | - Jong-Sun Kang
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
- Samsung Biomedical Research Institute, Suwon, Republic of Korea
- * E-mail: (JSK); (HC)
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Wang LC, Almazan G. Cdon, a cell surface protein, mediates oligodendrocyte differentiation and myelination. Glia 2016; 64:1021-33. [PMID: 26988125 DOI: 10.1002/glia.22980] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 02/11/2016] [Indexed: 12/13/2022]
Abstract
During central nervous system development, oligodendrocyte progenitors (OLPs) establish multiple branched processes and axonal contacts to initiate myelination. A complete understanding of the molecular signals implicated in cell surface interaction to initiate myelination/remyelination is currently lacking. The objective of our study was to assess whether Cdon, a cell surface protein that was shown to participate in muscle and neuron cell development, is involved in oligodendrocyte (OLG) differentiation and myelination. Here, we demonstrate that endogenous Cdon protein is expressed in OLPs, increasing in the early differentiation stages and decreasing in mature OLGs. Immunocytochemistry of endogenous Cdon showed localization on both OLG cell membranes and cellular processes exhibiting puncta- or varicosity-like structures. Cdon knockdown with siRNA decreased protein levels by 62% as well as two myelin-specific proteins, MBP and MAG. Conversely, overexpression of full-length rat Cdon increased myelin proteins in OLGs. The complexity of OLGs branching and contact point numbers with axons were also increased in Cdon overexpressing cells growing alone or in coculture with dorsal root ganglion neurons (DRGNs). Furthermore, myelination of DRGNs was decreased when OLPs were transfected with Cdon siRNA. Altogether, our results suggest that Cdon participates in OLG differentiation and myelination, most likely in the initial stages of development.
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Affiliation(s)
- Li-Chun Wang
- Department of Pharmacology and Therapeutics, McGill University, 3655 Promenade Sir William Osler, Montreal, Quebec, Canada, H3G 1Y6
| | - Guillermina Almazan
- Department of Pharmacology and Therapeutics, McGill University, 3655 Promenade Sir William Osler, Montreal, Quebec, Canada, H3G 1Y6
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Lee SJ, Yoo M, Go GY, Kim DH, Choi H, Leem YE, Kim YK, Seo DW, Ryu JH, Kang JS, Bae GU. Bakuchiol augments MyoD activation leading to enhanced myoblast differentiation. Chem Biol Interact 2016; 248:60-7. [PMID: 26902638 DOI: 10.1016/j.cbi.2016.02.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 01/22/2016] [Accepted: 02/09/2016] [Indexed: 11/29/2022]
Abstract
Myoblast differentiation is fundamental to skeletal muscle development and regeneration after injury and defects in this process are implicated in muscle atrophy associated with aging or pathological conditions. MyoD family transcription factors function as mater regulators in induction of muscle-specific genes during myoblast differentiation. We have identified bakuchiol, a prenylated phenolic monoterpene, as an inducer of MyoD-mediated transcription and myogenic differentiation. C2C12 myoblasts treated with bakuchiol exhibit enhanced muscle-specific gene expression and myotube formation. A key promyogenic kinase p38MAPK is activated dramatically by bakuchiol which in turn induced the formation of MyoD/E protein active transcription complexes. Consistently, the recruitment of MyoD and Baf60c to the Myogenin promoter is enhanced in bakuchiol-treated myoblasts. Furthermore, bakuchiol rescues defective p38MAPK activation and myogenic differentiation caused by Cdo-depletion or in RD rhabdomyosarcoma cells. Taken together, these results indicate that bakuchiol enhances myogenic differentiation through p38MAPK and MyoD activation. Thus bakuchiol can be developed into a potential agent to improve muscular regeneration and repair to treat muscular atrophy.
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Affiliation(s)
- Sang-Jin Lee
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Miran Yoo
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Ga-Yeon Go
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Do Hee Kim
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Hyunmo Choi
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Young-Eun Leem
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Samsung Biomedical Research Institute, Suwon 440-746, Republic of Korea
| | - Yong Kee Kim
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Dong-Wan Seo
- College of Pharmacy, Dankook University, Cheonan 330-714, Republic of Korea
| | - Jae-Ha Ryu
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Jong-Sun Kang
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Samsung Biomedical Research Institute, Suwon 440-746, Republic of Korea.
| | - Gyu-Un Bae
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140-742, Republic of Korea.
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Lee SJ, Go GY, Yoo M, Kim YK, Seo DW, Kang JS, Bae GU. Peroxisome proliferator-activated receptor β/δ (PPARβ/δ) activates promyogenic signaling pathways, thereby promoting myoblast differentiation. Biochem Biophys Res Commun 2016; 470:157-162. [DOI: 10.1016/j.bbrc.2016.01.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 01/04/2016] [Indexed: 11/25/2022]
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Marino S, Di Foggia V. Invited Review: Polycomb group genes in the regeneration of the healthy and pathological skeletal muscle. Neuropathol Appl Neurobiol 2015; 42:407-22. [PMID: 26479276 DOI: 10.1111/nan.12290] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Revised: 10/14/2015] [Accepted: 10/19/2015] [Indexed: 12/21/2022]
Abstract
The polycomb group (PcG) proteins are epigenetic repressors required during key developmental processes, such as maintenance of cell identity and stem cell differentiation. To exert their repressive function, PcG proteins assemble on chromatin into multiprotein complexes, known as polycomb repressive complex 1 and 2. In this review, we will focus on the role and mode of function of PcG proteins in the development and regeneration of the skeletal muscle, both in normal and pathological conditions and we will discuss the emerging concept of modulation of their expression to enhance the muscle-specific regenerative process for patient benefit.
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Affiliation(s)
- S Marino
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - V Di Foggia
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
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Syntaxin 4 regulates the surface localization of a promyogenic receptor Cdo thereby promoting myogenic differentiation. Skelet Muscle 2015; 5:28. [PMID: 26347807 PMCID: PMC4561423 DOI: 10.1186/s13395-015-0052-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 07/29/2015] [Indexed: 01/05/2023] Open
Abstract
Background Syntaxins are a family of membrane proteins involved in vesicle trafficking, such as synaptic vesicle exocytosis. Syntaxin 4 (Stx4) is expressed highly in skeletal muscle and plays a critical role in insulin-stimulated glucose uptake by promoting translocation of glucose transporter 4 (GLUT4) to the cell surface. A cell surface receptor cell adhesion molecule-related, down-regulated by oncogenes (Cdo) is a component of cell adhesion complexes and promotes myoblast differentiation via activation of key signalings, including p38MAPK and AKT. In this study, we investigate the function of Stx4 in myoblast differentiation and the crosstalk between Stx4 and Cdo in myoblast differentiation. Methods The effects of overexpression or shRNA-based depletion of Stx4 and Cdo genes on C2C12 myoblast differentiation are assessed by Western blotting and immunofluorescence approaches. The interaction between Cdo and Stx4 and the responsible domain mapping are assessed by coimmunoprecipitation or pulldown assays. The effect of Stx4 depletion on cell surface localization of Cdo and GLUT4 in C2C12 myoblasts is assessed by surface biotinylation and Western blotting. Results Overexpression or knockdown of Stx4 enhances or inhibits myogenic differentiation, respectively. Stx4 binds to the cytoplasmic tail of Cdo, and this interaction seems to be critical for induction of p38MAPK activation and myotube formation. Stx4 depletion decreases specifically the cell surface localization of Cdo without changes in surface N-Cadherin levels. Interestingly, Cdo depletion reduces the level of GLUT4 and Stx4 at cell surface. Consistently, overexpression of Cdo in C2C12 myoblasts generally increases glucose uptake, while Cdo depletion reduces it. Conclusions Stx4 promotes myoblast differentiation through interaction with Cdo and stimulation of its surface translocation. Both Cdo and Stx4 are required for GLUT4 translocation to cell surface and glucose uptake in myoblast differentiation. Electronic supplementary material The online version of this article (doi:10.1186/s13395-015-0052-8) contains supplementary material, which is available to authorized users.
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Overexpression of SPAG9 in human gastric cancer is correlated with poor prognosis. Virchows Arch 2015; 467:525-33. [PMID: 26293216 DOI: 10.1007/s00428-015-1826-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 07/12/2015] [Accepted: 08/06/2015] [Indexed: 02/06/2023]
Abstract
Sperm associated antigen 9 (SPAG9) protein has been found to play an important role in cancer progression but the involved mechanisms are still obscure. Its clinical significance in human gastric cancers remains unexplored. In the present study, SPAG9 expression was analyzed in 147 gastric cancer specimens. We observed weak staining in normal gastric mucosa and positive staining in 65 out of 147 (44.2 %) cancer samples. Overexpression of SPAG9 correlated with local invasion (p = 0.0101), lymph node metastasis (p = 0.0488), TNM stage (p = 0.0002), and relapse (p = 0.0018). Importantly, SPAG9 overexpression correlated with poor overall survival (p = 0.0008). Furthermore, we performed siRNA knockdown of SPAG9 in HGC-27 cells with high endogenous expression and transfected SPAG9 plasmid in SGC-7901 cell line with low endogenous level. SPAG9 overexpression promoted while its depletion inhibited cell proliferation, cell cycle transition, and invasive cell growth. SPAG9 overxpression also increased chemoresistance to 5--fluorouracil (5-FU) in SGC-7901 cells. Further analysis showed that SPAG9 knockdown downregulated and its overexpression upregulated cyclin D1, MMP9, and p-p38 expression. In conclusion, SPAG9 overexpression in gastric cancer correlates with poor prognosis and contributes to gastric cancer cell proliferation, invasion, and chemoresistance. SPAG9 promotes gastric cancer invasion, possibly through p38-MMP9 signaling pathways.
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Jalali A, Amirian ES, Bainbridge MN, Armstrong GN, Liu Y, Tsavachidis S, Jhangiani SN, Plon SE, Lau CC, Claus EB, Barnholtz-Sloan JS, Il'yasova D, Schildkraut J, Ali-Osman F, Sadetzki S, Johansen C, Houlston RS, Jenkins RB, Lachance D, Olson SH, Bernstein JL, Merrell RT, Wrensch MR, Davis FG, Lai R, Shete S, Aldape K, Amos CI, Muzny DM, Gibbs RA, Melin BS, Bondy ML. Targeted sequencing in chromosome 17q linkage region identifies familial glioma candidates in the Gliogene Consortium. Sci Rep 2015; 5:8278. [PMID: 25652157 PMCID: PMC4317686 DOI: 10.1038/srep08278] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Accepted: 01/06/2015] [Indexed: 12/30/2022] Open
Abstract
Glioma is a rare, but highly fatal, cancer that accounts for the majority of malignant primary brain tumors. Inherited predisposition to glioma has been consistently observed within non-syndromic families. Our previous studies, which involved non-parametric and parametric linkage analyses, both yielded significant linkage peaks on chromosome 17q. Here, we use data from next generation and Sanger sequencing to identify familial glioma candidate genes and variants on chromosome 17q for further investigation. We applied a filtering schema to narrow the original list of 4830 annotated variants down to 21 very rare (<0.1% frequency), non-synonymous variants. Our findings implicate the MYO19 and KIF18B genes and rare variants in SPAG9 and RUNDC1 as candidates worthy of further investigation. Burden testing and functional studies are planned.
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Affiliation(s)
- Ali Jalali
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas
| | - E. Susan Amirian
- Department of Pediatrics, Division of Hematology-Oncology, Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas
| | - Matthew N. Bainbridge
- Codified Genomics, LLC, Houston Texas
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas
| | - Georgina N. Armstrong
- Department of Pediatrics, Division of Hematology-Oncology, Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas
| | - Yanhong Liu
- Department of Pediatrics, Division of Hematology-Oncology, Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas
| | - Spyros Tsavachidis
- Department of Pediatrics, Division of Hematology-Oncology, Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas
| | | | - Sharon E. Plon
- Department of Pediatrics, Division of Hematology-Oncology, Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas
| | - Ching C. Lau
- Department of Pediatrics, Division of Hematology-Oncology, Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas
| | - Elizabeth B. Claus
- Department of Epidemiology and Public Health, Yale University School of Medicine, New Haven, Connecticut
- Department of Neurosurgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Jill S. Barnholtz-Sloan
- Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Dora Il'yasova
- Department of Epidemiology and Biostatistics, Georgia State University School of Public Health, Atlanta, Georgia
- Cancer Control and Prevention Program, Department of Community and Family Medicine, Duke University Medical Center, Durham, North Carolina
| | - Joellen Schildkraut
- Cancer Control and Prevention Program, Department of Community and Family Medicine, Duke University Medical Center, Durham, North Carolina
| | - Francis Ali-Osman
- Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - Siegal Sadetzki
- Cancer and Radiation Epidemiology Unit, Gertner Institute, Chaim Sheba Medical Center, Tel Hashomer
- Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Christoffer Johansen
- Institute of Cancer Epidemiology, Danish Cancer Society, Copenhagen, Denmark
- Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Richard S. Houlston
- Section of Cancer Genetics, Institute of Cancer Research, Sutton, Surrey, United Kingdom
| | - Robert B. Jenkins
- Mayo Clinic Comprehensive Cancer Center, Mayo Clinic, Rochester, Minnesota
| | - Daniel Lachance
- Mayo Clinic Comprehensive Cancer Center, Mayo Clinic, Rochester, Minnesota
| | - Sara H. Olson
- Department of Epidemiology and Biostatistics, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Jonine L. Bernstein
- Department of Epidemiology and Biostatistics, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Ryan T. Merrell
- Department of Neurology, NorthShore University HealthSystem, Evanston, Illinois
| | - Margaret R. Wrensch
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California
| | - Faith G. Davis
- Department of Public Health Services, University of Alberta, Edmonton, Alberta, Canada
| | - Rose Lai
- Departments of Neurology, Neurosurgery, and Preventive Medicine, The University of Southern California Keck School of Medicine, Los Angeles, California
| | - Sanjay Shete
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kenneth Aldape
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Christopher I. Amos
- Department of Community and Family Medicine, Department of Genetics, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth; Hanover, New Hampshire
| | - Donna M. Muzny
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas
| | - Richard A. Gibbs
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas
| | - Beatrice S. Melin
- Department of Radiation Sciences Oncology, Umeå University, Umeå, Sweden
| | - Melissa L. Bondy
- Department of Pediatrics, Division of Hematology-Oncology, Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas
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Wang HM, Yan Q, Yang T, Cheng H, Du J, Yoshioka K, Kung SKP, Ding GH. Scaffold protein JLP is critical for CD40 signaling in B lymphocytes. J Biol Chem 2015; 290:5256-66. [PMID: 25586186 DOI: 10.1074/jbc.m114.618496] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
CD40 expression on the surface of B lymphocytes is essential for their biological function and fate decision. The engagement of CD40 with its cognate ligand, CD154, leads to a sequence of cellular events in B lymphocytes, including CD40 cytoplasmic translocation, a temporal and spatial organization of effector molecules, and a cascade of CD40-induced signal transduction. The JLP scaffold protein was expressed in murine B lymphocytes. Using B lymphocytes from jlp-deficient mice, we observed that JLP deficiency resulted in defective CD40 internalization upon CD154/CD40 engagement. Examination of interactions and co-localization among CD40, JLP, dynein, and Rab5 in B lymphocytes suggested that CD40 internalization is a process of JLP-mediated vesicle transportation that depends on Rab5 and dynein. JLP deficiency also diminished CD40-dependent activation of MAPK and JNK, but not NF-κB. Inhibiting vesicle transportation from the direction of cell periphery to the cell center by a dynein inhibitor (ciliobrevin D) impaired both CD154-induced CD40 internalization and CD40-dependent MAPK activities in B lymphocytes. Collectively, our data demonstrate a novel role of the JLP scaffold protein in the bridging of CD154-triggered CD40 internalization and CD40-dependent signaling in splenic B lymphocytes.
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Affiliation(s)
- Hui-ming Wang
- From the Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan 430060, China,
| | - Qi Yan
- From the Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Tao Yang
- From the Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Hui Cheng
- From the Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Juan Du
- From the Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Katsuji Yoshioka
- the Division of Molecular Cell Signaling, Department of Molecular and Cellular Biology, Cancer Research Institute, Kanazawa University, Kanazawa, Ishikawa 920-0934, Japan
| | - Sam K P Kung
- the Department of Immunology, Faculty of Medicine, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada, and
| | - Guo-hua Ding
- From the Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan 430060, China,
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Fu X, Wang H, Hu P. Stem cell activation in skeletal muscle regeneration. Cell Mol Life Sci 2015; 72:1663-77. [PMID: 25572293 PMCID: PMC4412728 DOI: 10.1007/s00018-014-1819-5] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 12/21/2014] [Accepted: 12/22/2014] [Indexed: 12/31/2022]
Abstract
Muscle stem cell (satellite cell) activation post muscle injury is a transient and critical step in muscle regeneration. It is regulated by physiological cues, signaling molecules, and epigenetic regulatory factors. The mechanisms that coherently turn on the complex activation process shortly after trauma are just beginning to be illuminated. In this review, we will discuss the current knowledge of satellite cell activation regulation.
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Affiliation(s)
- Xin Fu
- State Key Laboratory of Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, China
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Lee SJ, Yoo M, Go GY, Hwang J, Lee HG, Kim YK, Seo DW, Baek NI, Ryu JH, Kang JS, Bae GU. Tetrahydropalmatine promotes myoblast differentiation through activation of p38MAPK and MyoD. Biochem Biophys Res Commun 2014; 455:147-52. [DOI: 10.1016/j.bbrc.2014.10.115] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 10/23/2014] [Indexed: 11/24/2022]
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Cdo suppresses canonical Wnt signalling via interaction with Lrp6 thereby promoting neuronal differentiation. Nat Commun 2014; 5:5455. [PMID: 25406935 DOI: 10.1038/ncomms6455] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 10/02/2014] [Indexed: 01/23/2023] Open
Abstract
Canonical Wnt signalling regulates expansion of neural progenitors and functions as a dorsalizing signal in the developing forebrain. In contrast, the multifunctional co-receptor Cdo promotes neuronal differentiation and is important for the function of the ventralizing signal, Shh. Here we show that Cdo negatively regulates Wnt signalling during neurogenesis. Wnt signalling is enhanced in Cdo-deficient cells, leading to impaired neuronal differentiation. The ectodomains of Cdo and Lrp6 interact via the Ig2 repeat of Cdo and the LDLR repeats of Lrp6, and the Cdo Ig2 repeat is necessary for Cdo-dependent Wnt inhibition. Furthermore, the Cdo-deficient dorsal forebrain displays stronger Wnt signalling activity, increased cell proliferation and enhanced expression of the dorsal markers and Wnt targets, Pax6, Gli3, Axin2. Therefore, in addition to promoting ventral central nervous system cell fates with Shh, Cdo promotes neuronal differentiation by suppression of Wnt signalling and provides a direct link between two major dorsoventral morphogenetic signalling pathways.
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Yi P, Chew LL, Zhang Z, Ren H, Wang F, Cong X, Zheng L, Luo Y, Ouyang H, Low BC, Zhou YT. KIF5B transports BNIP-2 to regulate p38 mitogen-activated protein kinase activation and myoblast differentiation. Mol Biol Cell 2014; 26:29-42. [PMID: 25378581 PMCID: PMC4279227 DOI: 10.1091/mbc.e14-03-0797] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Cdo bridges scaffold proteins BNIP-2 and JLP to activate p38MAPK during myoblast differentiation. KIF5B is a novel interacting partner of BNIP-2 and promotes myogenic differentiation. KIF5B-dependent transport of BNIP-2 is essential for its promyogenic effects. The Cdo-p38MAPK (p38 mitogen-activated protein kinase) signaling pathway plays important roles in regulating skeletal myogenesis. During myogenic differentiation, the cell surface receptor Cdo bridges scaffold proteins BNIP-2 and JLP and activates p38MAPK, but the spatial-temporal regulation of this process is largely unknown. We here report that KIF5B, the heavy chain of kinesin-1 motor, is a novel interacting partner of BNIP-2. Coimmunoprecipitation and far-Western study revealed that BNIP-2 directly interacted with the motor and tail domains of KIF5B via its BCH domain. By using a range of organelle markers and live microscopy, we determined the endosomal localization of BNIP-2 and revealed the microtubule-dependent anterograde transport of BNIP-2 in C2C12 cells. The anterograde transport of BNIP-2 was disrupted by a dominant-negative mutant of KIF5B. In addition, knockdown of KIF5B causes aberrant aggregation of BNIP-2, confirming that KIF5B is critical for the anterograde transport of BNIP-2 in cells. Gain- and loss-of-function experiments further showed that KIF5B modulates p38MAPK activity and in turn promotes myogenic differentiation. Of importance, the KIF5B-dependent anterograde transport of BNIP-2 is critical for its promyogenic effects. Our data reveal a novel role of KIF5B in the spatial regulation of Cdo–BNIP-2–p38MAPK signaling and disclose a previously unappreciated linkage between the intracellular transporting system and myogenesis regulation.
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Affiliation(s)
- Peng Yi
- Center for Stem Cell and Tissue Engineering, Department of Biochemistry and Molecular Biology, and Zhejiang Provincial Key Lab for Tissue Engineering and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Li Li Chew
- Department of Biological Sciences and Mechanobiology Institute, National University of Singapore, 117411 Singapore
| | - Ziwang Zhang
- Center for Stem Cell and Tissue Engineering, Department of Biochemistry and Molecular Biology, and Zhejiang Provincial Key Lab for Tissue Engineering and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Hao Ren
- Zhejiang Provincial Key Lab for Tissue Engineering and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Feiya Wang
- Center for Stem Cell and Tissue Engineering, Department of Biochemistry and Molecular Biology, and Zhejiang Provincial Key Lab for Tissue Engineering and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Xiaoxia Cong
- Center for Stem Cell and Tissue Engineering, Department of Biochemistry and Molecular Biology, and Zhejiang Provincial Key Lab for Tissue Engineering and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Liling Zheng
- Center for Stem Cell and Tissue Engineering, Department of Biochemistry and Molecular Biology, and
| | - Yan Luo
- Center for Stem Cell and Tissue Engineering, Department of Biochemistry and Molecular Biology, and
| | - Hongwei Ouyang
- Zhejiang Provincial Key Lab for Tissue Engineering and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Boon Chuan Low
- Department of Biological Sciences and Mechanobiology Institute, National University of Singapore, 117411 Singapore
| | - Yi Ting Zhou
- Center for Stem Cell and Tissue Engineering, Department of Biochemistry and Molecular Biology, and Zhejiang Provincial Key Lab for Tissue Engineering and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
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Tuvshintugs B, Sato T, Enkhtuya R, Yamashita K, Yoshioka K. JSAP1 and JLP are required for ARF6 localization to the midbody in cytokinesis. Genes Cells 2014; 19:692-703. [DOI: 10.1111/gtc.12170] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 06/23/2014] [Indexed: 01/23/2023]
Affiliation(s)
- Baljinnyam Tuvshintugs
- Division of Molecular Cell Signaling; Cancer Research Institute; Kanazawa University; Kanazawa 920-1192 Japan
| | - Tokiharu Sato
- Division of Molecular Cell Signaling; Cancer Research Institute; Kanazawa University; Kanazawa 920-1192 Japan
| | - Radnaa Enkhtuya
- Division of Molecular Cell Signaling; Cancer Research Institute; Kanazawa University; Kanazawa 920-1192 Japan
| | - Katsumi Yamashita
- Division of Pharmaceutical Sciences; Institute of Medical; Pharmaceutical and Health Sciences; Kanazawa University; Kanazawa 920-1192 Japan
| | - Katsuji Yoshioka
- Division of Molecular Cell Signaling; Cancer Research Institute; Kanazawa University; Kanazawa 920-1192 Japan
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48
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Kwon YR, Jeong MH, Leem YE, Lee SJ, Kim HJ, Bae GU, Kang JS. The Shh coreceptor Cdo is required for differentiation of midbrain dopaminergic neurons. Stem Cell Res 2014; 13:262-74. [PMID: 25117422 DOI: 10.1016/j.scr.2014.07.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Revised: 07/12/2014] [Accepted: 07/16/2014] [Indexed: 11/16/2022] Open
Abstract
Sonic hedgehog (Shh) signaling is required for numerous developmental processes including specification of ventral cell types in the central nervous system such as midbrain dopaminergic (DA) neurons. The multifunctional coreceptor Cdo increases the signaling activity of Shh which is crucial for development of forebrain and neural tube. In this study, we investigated the role of Cdo in midbrain DA neurogenesis. Cdo and Shh signaling components are induced during neurogenesis of embryonic stem (ES) cells. Cdo(-/-) ES cells show reduced neuronal differentiation accompanied by increased cell death upon neuronal induction. In addition, Cdo(-/-) ES cells form fewer tyrosine hydroxylase (TH) and microtubule associated protein 2 (MAP2)-positive DA neurons correlating with the decreased expression of key regulators of DA neurogenesis, such as Shh, Neurogenin2, Mash1, Foxa2, Lmx1a, Nurr1 and Pitx3, relative to the Cdo(+/+) ES cells. Consistently, the Cdo(-/-) embryonic midbrain displays a reduction in expression of TH and Nurr1. Furthermore, activation of Shh signaling by treatment with Purmorphamine (Pur) restores the DA neurogenesis of Cdo(-/-) ES cells, suggesting that Cdo is required for the full Shh signaling activation to induce efficient DA neurogenesis.
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Affiliation(s)
- Yu-Rim Kwon
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 440-746, Republic of Korea
| | - Myong-Ho Jeong
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 440-746, Republic of Korea
| | - Young-Eun Leem
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 440-746, Republic of Korea
| | - Sang-Jin Lee
- Research Center for Cell Fate Control, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Hyun-Jin Kim
- Department of Physiology, Sungkyunkwan University School of Medicine, Samsung Biomedical Research Institute, Suwon 440-746, Republic of Korea
| | - Gyu-Un Bae
- Research Center for Cell Fate Control, Sookmyung Women's University, Seoul 140-742, Republic of Korea.
| | - Jong-Sun Kang
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 440-746, Republic of Korea.
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Diversin is overexpressed in human gliomas and its depletion inhibits proliferation and invasion. Tumour Biol 2014; 35:7905-9. [PMID: 24833088 DOI: 10.1007/s13277-014-2028-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Accepted: 04/28/2014] [Indexed: 10/25/2022] Open
Abstract
Previous study indicated diversin overexpression in human cancers. However, its expression pattern in human gliomas and the molecular mechanisms of diversin on cancer progression have not been characterized. In the present study, diversin expression was investigated in 105 glioma specimens using immunohistochemistry. Negative staining was observed in normal glial cells, and positive staining was found in 33 out of 105 (31.4 %) glioma specimens. Diversin overexpression correlated with advanced tumor grade (p < 0.05). Small interfering RNA (siRNA) knockdown was performed in U87 and TG905 cell lines with high endogenous diversin expression. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and colony formation assay showed that diversin knockdown inhibited glioma cell growth. Matrigel invasion assay showed that diversin depletion inhibited cell invasion. In addition, messenger RNA (mRNA) and protein levels of matrix metallopeptidase 9 (MMP9) were downregulated after siRNA treatment. In conclusion, diversin is overexpressed in human glioma and regulates glioma cell proliferation and invasion, possibly through MMP9.
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Xie C, Fu L, Liu N, Li Q. Overexpression of SPAG9 correlates with poor prognosis and tumor progression in hepatocellular carcinoma. Tumour Biol 2014; 35:7685-91. [PMID: 24801907 DOI: 10.1007/s13277-014-2030-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Accepted: 04/28/2014] [Indexed: 01/29/2023] Open
Abstract
Sperm-associated antigen 9 (SPAG9) was reported as a novel biomarker for several cancers and associated with the malignant behavior of cancer cells. However, its expression pattern and biological role in human hepatocellular carcinoma (HCC) have not been reported. In the present study, we analyzed SPAG9 expression in human HCC tissues by immunohistochemistry and found that SPAG9 overexpression is correlated with tumor stage (p < 0.001), tumor multiplicity (p = 0.019), tumor size (p = 0.034), AFP levels (p = 0.006), and tumor relapse (p = 0.0017). Furthermore, SPAG9 overexpression is correlated with poor overall survival (p < 0.001) and relapse-free survival (p = 0.002). Transfection of SPAG9 small interfering RNA (siRNA) was performed in Bel-7402 cell line. Colony formation and MTT showed that SPAG9 siRNA knockdown inhibited HCC cell proliferation. We also found that SPAG9 depletion could increase cell apoptosis. In addition, the level of cyclin D1 and cyclin E protein expression was downregulated after siRNA treatment. In conclusion, SPAG9 is overexpressed in human HCC and serves as a prognostic marker. SPAG9 contributes to cancer cell growth through regulation of cyclin proteins.
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Affiliation(s)
- Chengyao Xie
- Department of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Bei'er Road 92, Heping District Shenyang, 110001, Liaoning, People's Republic of China,
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