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Wu B, Xia L, Zhang S, Jin K, Li L, Sun C, Xia T, Chen G. circRNA-SMO upregulates CEP85 to promote proliferation and migration of glioblastoma via sponging miR-326. Histol Histopathol 2023; 38:1307-1319. [PMID: 36718820 DOI: 10.14670/hh-18-587] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Circular RNAs (circRNAs) play an important role in cancer development by sponging microRNAs (miRNAs) to regulate the signaling axis. However, more comprehensive mechanisms of circRNAs in glioblastoma need to be elucidated. RT-qPCR was used to detect the expression levels of circRNA-SMO and miR-326. Dual-luciferase reporter assays were conducted to verify the interaction among circRNA-SMO, miR-326, and CEP85. Flow cytometric analysis was performed to detect apoptosis. Western blotting was used to determine the protein levels of the different molecules. Animal xenograft experiments were performed to evaluate the role of circRNA-SMO in vivo. CircRNA-SMO was upregulated in glioblastoma tissues and glioblastoma cells. CircRNA-SMO downregulation inhibited the viability and colony-forming ability of the glioblastoma cells. In addition, miR-326 was downregulated in glioblastoma cells, which was verified to sponge circRNA-SMO and interact with CEP85. Moreover, circRNA-SMO inhibition induced the elevation of miR-326 and apoptosis, accompanied by a decrease in CEP85. CircRNA-SMO knockdown-mediated tumor inhibition was prevented by an miR-326 inhibitor. Furthermore, circRNA-SMO inhibition inhibited tumor growth in vivo, accompanied by an increase in miR-326 and a decline in CEP85 in tumor tissues. Conclusions. CircRNA-SMO sponges miR-326 to promote glioblastoma proliferation and migration by upregulating CEP85 expression. This study clarified the role of circRNA-SMO in the development of glioblastoma, providing novel insights for its treatment.
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Affiliation(s)
- Bin Wu
- Department of Neurosurgery, The Second Affiliated Hospital of Medical College of Zhejiang University, Hangzhou, Zhejiang Province, China
- Department of Neurosurgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang Province, China
- Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
- Key Laboratory of Head and Neck Cancer Translational Research of Zhejiang Province, Hangzhou, Zhejiang Province, China
| | - Liang Xia
- Department of Neurosurgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang Province, China
- Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
- Key Laboratory of Head and Neck Cancer Translational Research of Zhejiang Province, Hangzhou, Zhejiang Province, China
| | - Shuyuan Zhang
- Department of Neurosurgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang Province, China
- Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
- Key Laboratory of Head and Neck Cancer Translational Research of Zhejiang Province, Hangzhou, Zhejiang Province, China
| | - Kai Jin
- Department of Neurosurgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang Province, China
- Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
| | - Liwen Li
- Department of Neurosurgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang Province, China
- Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
| | - Caixing Sun
- Department of Neurosurgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang Province, China
- Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
- Key Laboratory of Head and Neck Cancer Translational Research of Zhejiang Province, Hangzhou, Zhejiang Province, China.
| | - Ting Xia
- Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
- Department of Gynecologic Oncology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang Province, China.
| | - Gao Chen
- Department of Neurosurgery, The Second Affiliated Hospital of Medical College of Zhejiang University, Hangzhou, Zhejiang Province, China.
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Valdebenito-Maturana B, Arancibia E, Riadi G, Tapia JC, Carrasco M. Locus-specific analysis of Transposable Elements during the progression of ALS in the SOD1G93A mouse model. PLoS One 2021; 16:e0258291. [PMID: 34614020 PMCID: PMC8494334 DOI: 10.1371/journal.pone.0258291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/24/2021] [Indexed: 11/19/2022] Open
Abstract
Transposable Elements (TEs) are ubiquitous genetic elements with the ability to move within a genome. TEs contribute to a large fraction of the repetitive elements of a genome, and because of their nature, they are not routinely analyzed in RNA-Seq gene expression studies. Amyotrophic Lateral Sclerosis (ALS) is a lethal neurodegenerative disease, and a well-accepted model for its study is the mouse harboring the human SOD1G93A mutant. In this model, landmark stages of the disease can be recapitulated at specific time points, making possible to understand changes in gene expression across time. While there are several works reporting TE activity in ALS models, they have not explored their activity through the disease progression. Moreover, they have done it at the expense of losing their locus of expression. Depending on their genomic location, TEs can regulate genes in cis and in trans, making locus-specific analysis of TEs of importance in order to understand their role in modulating gene expression. Particularly, the locus-specific role of TEs in ALS has not been fully elucidated. In this work, we analyzed publicly available RNA-Seq datasets of the SOD1G93A mouse model, to understand the locus-specific role of TEs. We show that TEs become up-regulated at the early stages of the disease, and via statistical associations, we speculate that they can regulate several genes, which in turn might be contributing to the genetic dysfunction observed in ALS.
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Affiliation(s)
| | - Esteban Arancibia
- Centre for Bioinformatics, Simulation and Modelling, CBSM, Department of Bioinformatics, Faculty of Engineering, University of Talca, Talca, Chile
| | - Gonzalo Riadi
- ANID – Millennium Science Initiative Program Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Centre for Bioinformatics, Simulation and Modelling, CBSM, Department of Bioinformatics, Faculty of Engineering, University of Talca, Talca, Chile
| | - Juan Carlos Tapia
- School of Medicine, Universidad de Talca, Talca, Chile
- * E-mail: (JCT); (MC)
| | - Mónica Carrasco
- School of Medicine, Universidad de Talca, Talca, Chile
- * E-mail: (JCT); (MC)
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Contrò G, Micalizzi A, Giangiobbe S, Caraffi SG, Zuntini R, Rosato S, Pollazzon M, Terracciano A, Napoli M, Rizzi S, Salerno GG, Radio FC, Niceta M, Parrini E, Fusco C, Gargano G, Guerrini R, Tartaglia M, Novelli A, Zuffardi O, Garavelli L. Posterior Lissencephaly Associated with Subcortical Band Heterotopia Due to a Variation in the CEP85L Gene: A Case Report and Refining of the Phenotypic Spectrum. Genes (Basel) 2021; 12:genes12081208. [PMID: 34440382 PMCID: PMC8391275 DOI: 10.3390/genes12081208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/30/2021] [Accepted: 08/03/2021] [Indexed: 11/23/2022] Open
Abstract
Lissencephaly describes a group of conditions characterized by the absence of normal cerebral convolutions and abnormalities of cortical development. To date, at least 20 genes have been identified as involved in the pathogenesis of this condition. Variants in CEP85L, encoding a protein involved in the regulation of neuronal migration, have been recently described as causative of lissencephaly with a posterior-prevalent involvement of the cerebral cortex and an autosomal dominant pattern of inheritance. Here, we describe a 3-year-old boy with slightly delayed psychomotor development and mild dysmorphic features, including bitemporal narrowing, protruding ears with up-lifted lobes and posterior plagiocephaly. Brain MRI at birth identified type 1 lissencephaly, prevalently in the temporo–occipito–parietal regions of both hemispheres with “double-cortex” (Dobyns’ 1–2 degree) periventricular band alterations. Whole-exome sequencing revealed a previously unreported de novo pathogenic variant in the CEP85L gene (NM_001042475.3:c.232+1del). Only 20 patients have been reported as carriers of pathogenic CEP85L variants to date. They show lissencephaly with prevalent posterior involvement, variable cognitive deficits and epilepsy. The present case report indicates the clinical variability associated with CEP85L variants that are not invariantly associated with severe phenotypes and poor outcome, and underscores the importance of including this gene in diagnostic panels for lissencephaly.
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Affiliation(s)
- Gianluca Contrò
- Medical Genetics Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (G.C.); (S.G.C.); (R.Z.); (S.R.); (M.P.)
| | - Alessia Micalizzi
- Laboratory of Medical Genetics, Translational Cytogenomics Research Unit, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (A.M.); (A.T.); (A.N.)
| | - Sara Giangiobbe
- Clinical Genomics, Medical Genetics Service, San Raffaele Hospital, 20132 Milan, Italy;
| | - Stefano Giuseppe Caraffi
- Medical Genetics Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (G.C.); (S.G.C.); (R.Z.); (S.R.); (M.P.)
| | - Roberta Zuntini
- Medical Genetics Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (G.C.); (S.G.C.); (R.Z.); (S.R.); (M.P.)
| | - Simonetta Rosato
- Medical Genetics Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (G.C.); (S.G.C.); (R.Z.); (S.R.); (M.P.)
| | - Marzia Pollazzon
- Medical Genetics Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (G.C.); (S.G.C.); (R.Z.); (S.R.); (M.P.)
| | - Alessandra Terracciano
- Laboratory of Medical Genetics, Translational Cytogenomics Research Unit, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (A.M.); (A.T.); (A.N.)
| | - Manuela Napoli
- Neuroradiology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy;
| | - Susanna Rizzi
- Child Neurology and Psychiatry Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (S.R.); (G.G.S.); (C.F.)
| | - Grazia Gabriella Salerno
- Child Neurology and Psychiatry Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (S.R.); (G.G.S.); (C.F.)
| | - Francesca Clementina Radio
- Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (F.C.R.); (M.N.); (M.T.)
| | - Marcello Niceta
- Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (F.C.R.); (M.N.); (M.T.)
| | - Elena Parrini
- Pediatric Neurology, Neurogenetics and Neurobiology Unit and Laboratories, Meyer Children’s Hospital, University of Florence, 50139 Florence, Italy; (E.P.); (R.G.)
| | - Carlo Fusco
- Child Neurology and Psychiatry Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (S.R.); (G.G.S.); (C.F.)
| | - Giancarlo Gargano
- Neonatal Intensive Care Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy;
| | - Renzo Guerrini
- Pediatric Neurology, Neurogenetics and Neurobiology Unit and Laboratories, Meyer Children’s Hospital, University of Florence, 50139 Florence, Italy; (E.P.); (R.G.)
| | - Marco Tartaglia
- Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (F.C.R.); (M.N.); (M.T.)
| | - Antonio Novelli
- Laboratory of Medical Genetics, Translational Cytogenomics Research Unit, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (A.M.); (A.T.); (A.N.)
| | - Orsetta Zuffardi
- Unit of Medical Genetics, Department of Molecular Medicine, University of Pavia, 27100 Pavia, Italy;
| | - Livia Garavelli
- Medical Genetics Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (G.C.); (S.G.C.); (R.Z.); (S.R.); (M.P.)
- Correspondence: ; Tel.: +39-0522-296244 or +39-0522-295463
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Simpson CL, Musolf AM, Cordero RY, Cordero JB, Portas L, Murgia F, Lewis DD, Middlebrooks CD, Ciner EB, Bailey-Wilson JE, Stambolian D. Myopia in African Americans Is Significantly Linked to Chromosome 7p15.2-14.2. Invest Ophthalmol Vis Sci 2021; 62:16. [PMID: 34241624 PMCID: PMC8287048 DOI: 10.1167/iovs.62.9.16] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 01/20/2021] [Indexed: 11/24/2022] Open
Abstract
Purpose The purpose of this study was to perform genetic linkage analysis and association analysis on exome genotyping from highly aggregated African American families with nonpathogenic myopia. African Americans are a particularly understudied population with respect to myopia. Methods One hundred six African American families from the Philadelphia area with a family history of myopia were genotyped using an Illumina ExomePlus array and merged with previous microsatellite data. Myopia was initially measured in mean spherical equivalent (MSE) and converted to a binary phenotype where individuals were identified as affected, unaffected, or unknown. Parametric linkage analysis was performed on both individual variants (single-nucleotide polymorphisms [SNPs] and microsatellites) as well as gene-based markers. Family-based association analysis and transmission disequilibrium test (TDT) analysis modified for rare variants was also performed. Results Genetic linkage analysis identified 2 genomewide significant variants at 7p15.2 and 7p14.2 (in the intergenic region between MIR148A and NFE2L3 and in the noncoding RNA LOC401324) and 2 genomewide significant genes (CRHR2 and AVL9) both at 7p14.3. No genomewide results were found in the association analyses. Conclusions This study identified a significant linkage peak in African American families for myopia at 7p15.2 to 7p14.2, the first potential risk locus for myopia in African Americans. Interesting candidate genes are located in the region, including PDE1C, which is highly expressed in the eyes, and known to be involved in retinal development. Further identification of the causal variants at this linkage peak will help elucidate the genetics of myopia in this understudied population.
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Affiliation(s)
- Claire L. Simpson
- Department of Genetics, Genomics and Informatics and Department of Ophthalmology, University of Tennessee Health Science Center, Memphis, Tennessee, United States
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland, United States
| | - Anthony M. Musolf
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland, United States
| | - Roberto Y. Cordero
- Department of Genetics, Genomics and Informatics and Department of Ophthalmology, University of Tennessee Health Science Center, Memphis, Tennessee, United States
| | - Jennifer B. Cordero
- Department of Genetics, Genomics and Informatics and Department of Ophthalmology, University of Tennessee Health Science Center, Memphis, Tennessee, United States
| | - Laura Portas
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland, United States
| | - Federico Murgia
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland, United States
| | - Deyana D. Lewis
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland, United States
| | - Candace D. Middlebrooks
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland, United States
| | - Elise B. Ciner
- The Pennsylvania College of Optometry at Salus University, Elkins Park, Pennsylvania, United States
| | - Joan E. Bailey-Wilson
- Department of Genetics, Genomics and Informatics and Department of Ophthalmology, University of Tennessee Health Science Center, Memphis, Tennessee, United States
| | - Dwight Stambolian
- Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania, United States
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5
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Liu C, Shi Y, Li J, Liu X, Xiahou Z, Tan Z, Chen X, Li J. O-GlcNAcylation of myosin phosphatase targeting subunit 1 (MYPT1) dictates timely disjunction of centrosomes. J Biol Chem 2020; 295:7341-7349. [PMID: 32295844 PMCID: PMC7247298 DOI: 10.1074/jbc.ra119.012401] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 04/01/2020] [Indexed: 01/10/2023] Open
Abstract
The role of O-linked N-acetylglucosamine (O-GlcNAc) modification in the cell cycle has been enigmatic. Previously, both O-GlcNAc transferase (OGT) and O-GlcNAcase (OGA) disruptions have been shown to derail the mitotic centrosome numbers, suggesting that mitotic O-GlcNAc oscillation needs to be in concert with mitotic progression to account for centrosome integrity. Here, using both chemical approaches and biological assays with HeLa cells, we attempted to address the underlying molecular mechanism and observed that incubation of the cells with the OGA inhibitor Thiamet-G strikingly elevates centrosomal distances, suggestive of premature centrosome disjunction. These aberrations could be overcome by inhibiting Polo-like kinase 1 (PLK1), a mitotic master kinase. PLK1 inactivation is modulated by the myosin phosphatase targeting subunit 1 (MYPT1)-protein phosphatase 1cβ (PP1cβ) complex. Interestingly, MYPT1 has been shown to be abundantly O-GlcNAcylated, and the modified residues have been detected in a recent O-GlcNAc-profiling screen utilizing chemoenzymatic labeling and bioorthogonal conjugation. We demonstrate here that MYPT1 is O-GlcNAcylated at Thr-577, Ser-585, Ser-589, and Ser-601, which antagonizes CDK1-dependent phosphorylation at Ser-473 and attenuates the association between MYPT1 and PLK1, thereby promoting PLK1 activity. We conclude that under high O-GlcNAc levels, PLK1 is untimely activated, conducive to inopportune centrosome separation and disruption of the cell cycle. We propose that too much O-GlcNAc is equally deleterious as too little O-GlcNAc, and a fine balance between the OGT/OGA duo is indispensable for successful mitotic divisions.
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Affiliation(s)
- Caifei Liu
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Yingxin Shi
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Jie Li
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Xuewen Liu
- Department of Radiation Oncology, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410006, China; Key Laboratory of Translational Radiation Oncology, Hunan 410006, China
| | - Zhikai Xiahou
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Zhongping Tan
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xing Chen
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking-Tsinghua Center for Life Sciences, Synthetic and Functional Biomolecules Center, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Peking University, Beijing 100871, China
| | - Jing Li
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China.
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Remo A, Li X, Schiebel E, Pancione M. The Centrosome Linker and Its Role in Cancer and Genetic Disorders. Trends Mol Med 2020; 26:380-393. [PMID: 32277932 DOI: 10.1016/j.molmed.2020.01.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 11/26/2019] [Accepted: 01/21/2020] [Indexed: 02/07/2023]
Abstract
Centrosome cohesion, the joining of the two centrosomes of a cell, is increasingly appreciated as a major regulator of cell functions such as Golgi organization and cilia positioning. One major element of centrosome cohesion is the centrosome linker that consists of a growing number of proteins. The timely disassembly of the centrosome linker enables centrosomes to separate and assemble a functional bipolar mitotic spindle that is crucial for maintaining genomic integrity. Exciting new findings link centrosome linker defects to cell transformation and genetic disorders. We review recent data on the molecular mechanisms of the assembly and disassembly of the centrosome linker, and discuss how defects in the proper execution of these processes cause DNA damage and genomic instability leading to disease.
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Affiliation(s)
- Andrea Remo
- Pathology Unit, Mater Salutis Hospital, Azienda Unità Locale Socio Sanitaria (AULSS) 9 'Scaligera', Verona, Italy
| | - Xue Li
- Zentrum für Molekulare Biologie der Universität Heidelberg (ZMBH), Deutsches Krebsforschungszentrum (DKFZ)-ZMBH Allianz, Heidelberg, Germany; Heidelberg Biosciences International Graduate School (HBIGS), Universität Heidelberg, Heidelberg, Germany
| | - Elmar Schiebel
- Zentrum für Molekulare Biologie der Universität Heidelberg (ZMBH), Deutsches Krebsforschungszentrum (DKFZ)-ZMBH Allianz, Heidelberg, Germany.
| | - Massimo Pancione
- Department of Sciences and Technologies, University of Sannio, Benevento, Italy; Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Complutense University of Madrid, Madrid, Spain.
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Chen C, Xu Z, Zhang T, Lin L, Lu M, Xie C, Yu X. Cep85 Relays Plk1 Activity to Phosphorylated Nek2A for Its Timely Activation in Centrosome Disjunction. iScience 2018; 11:114-133. [PMID: 30611117 PMCID: PMC6317306 DOI: 10.1016/j.isci.2018.12.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 11/19/2018] [Accepted: 12/17/2018] [Indexed: 12/18/2022] Open
Abstract
Timely centrosome separation is critical for accurate chromosome separation. It is initiated by Nek2A at the onset of mitosis, but the mechanism for the strict requirement of phosphorylated Nek2A for its own activation remains unclear. In this study, we have found that Plk1 interacts with Cep85 and forms a ternary complex with Cep85-Nek2A. Nek2A binding, but not its kinase activity, is pre-required for Cep85 to be phosphorylated by Plk1. Nek2A-dependent Cep85 phosphorylation, in turn, leads to the dissociation of phosphorylated Cep85 exclusively from phospho-Nek2A, thereby increasing the freed phospho-Nek2A activity. Both kinases are also required for phosphorylating endogenous Cep85 in cells, and timely phosphorylation of Cep85 and Nek2A is crucial for initiating centrosome disjunction at G2/M. Overall, our study has uncovered a previously unrecognized role of Plk1 and Nek2A and identified Cep85 as a missing piece directly relaying Plk1 activity to Nek2A for its activation in centrosome disjunction. Cep85 prevents centrosome separation by binding to and inhibiting Nek2A in interphase Plk1 binds to Cep85 and forms a ternary Plk1-Cep85-Nek2A complex in late G2 Nek2A-assisting Cep85 phosphorylation by Plk1 releases phospho-Nek2A from Cep85 Freed phospho-Nek2A initiates centrosome separation in G2/M
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Affiliation(s)
- Canhe Chen
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China.
| | - Zhenping Xu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Ting Zhang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Liping Lin
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Mingke Lu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Changchuan Xie
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Xianwen Yu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China.
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8
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Song YZ, Li X, Li W, Wang Z, Li K, Xie FL, Zhang F. Integrated genomic analysis for prediction of survival for patients with liver cancer using The Cancer Genome Atlas. World J Gastroenterol 2018; 24:3145-3154. [PMID: 30065560 PMCID: PMC6064958 DOI: 10.3748/wjg.v24.i28.3145] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 06/13/2018] [Accepted: 06/25/2018] [Indexed: 02/06/2023] Open
Abstract
AIM To evaluate the prognostic power of different molecular data in liver cancer.
METHODS Cox regression screen and least absolute shrinkage and selection operator were performed to select significant prognostic variables. Then the concordance index was calculated to evaluate the prognostic power. For the combination data, based on the clinical cox model, molecular features that better fit the model were combined to calculate the concordance index. Prognostic models were built based on the arithmetic summation of the significant variables. Kaplan-Meier survival curve and log-rank test were performed to compare the survival difference. Then a heatmap was constructed and gene set enrichment analysis was performed for pathway analysis.
RESULTS The mRNA data were the most informative prognostic variables in all kinds of omics data in liver cancer, with the highest concordance index (C-index) of 0.61. For the copy number variation, methylation and miRNA data, the combination of molecular data with clinical data could significantly boost the prediction accuracy of the molecular data alone (P < 0.05). On the other hand, the combination of clinical data with methylation, miRNA and mRNA data could significantly boost the prediction accuracy of the clinical data itself (P < 0.05). Based on the significant prognostic variables, different prognostic models were built. In addition, the heatmap analysis, survival analysis, and gene set enrichment analysis validated the practicability of the prognostic models.
CONCLUSION In all kinds of omics data in liver cancer, the mRNA data might be the most informative prognostic variable. The combination of clinical data with molecular data might be the future direction for cancer prognosis and prediction.
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Affiliation(s)
- Yan-Zhou Song
- Department of General Surgery, Lianyungang Clinical Medical College of Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang 222002, Jiangsu Province, China
| | - Xu Li
- Department of Liver Surgery/Liver Transplantation Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Wei Li
- Department of General Surgery, The First People’s Hospital of Lianyungang, Lianyungang 222002, Jiangsu Province, China
| | - Zhong Wang
- Department of General Surgery, The First People’s Hospital of Lianyungang, Lianyungang 222002, Jiangsu Province, China
| | - Kai Li
- Department of General Surgery, The First People’s Hospital of Lianyungang, Lianyungang 222002, Jiangsu Province, China
| | - Fang-Liang Xie
- Department of General Surgery, The First People’s Hospital of Lianyungang, Lianyungang 222002, Jiangsu Province, China
| | - Feng Zhang
- Department of Liver Surgery/Liver Transplantation Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
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Coyaud E, Ranadheera C, Cheng D, Gonçalves J, Dyakov BJA, Laurent EMN, St-Germain J, Pelletier L, Gingras AC, Brumell JH, Kim PK, Safronetz D, Raught B. Global Interactomics Uncovers Extensive Organellar Targeting by Zika Virus. Mol Cell Proteomics 2018; 17:2242-2255. [PMID: 30037810 DOI: 10.1074/mcp.tir118.000800] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/06/2018] [Indexed: 11/06/2022] Open
Abstract
Zika virus (ZIKV) is a membrane enveloped Flavivirus with a positive strand RNA genome, transmitted by Aedes mosquitoes. The geographical range of ZIKV has dramatically expanded in recent decades resulting in increasing numbers of infected individuals, and the spike in ZIKV infections has been linked to significant increases in both Guillain-Barré syndrome and microcephaly. Although a large number of host proteins have been physically and/or functionally linked to other Flaviviruses, very little is known about the virus-host protein interactions established by ZIKV. Here we map host cell protein interaction profiles for each of the ten polypeptides encoded in the ZIKV genome, generating a protein topology network comprising 3033 interactions among 1224 unique human polypeptides. The interactome is enriched in proteins with roles in polypeptide processing and quality control, vesicle trafficking, RNA processing and lipid metabolism. >60% of the network components have been previously implicated in other types of viral infections; the remaining interactors comprise hundreds of new putative ZIKV functional partners. Mining this rich data set, we highlight several examples of how ZIKV may usurp or disrupt the function of host cell organelles, and uncover an important role for peroxisomes in ZIKV infection.
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Affiliation(s)
- Etienne Coyaud
- From the ‡Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Charlene Ranadheera
- §Public Health Agency of Canada, Zoonotic Diseases and Special Pathogens Program, Winnipeg, Manitoba, Canada
| | - Derrick Cheng
- ¶Cell Biology Program, Hospital for Sick Children, Toronto, Ontario, Canada.,‖Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - João Gonçalves
- **Centre for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada
| | - Boris J A Dyakov
- **Centre for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada.,‡‡Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Estelle M N Laurent
- From the ‡Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Jonathan St-Germain
- From the ‡Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Laurence Pelletier
- **Centre for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada.,‡‡Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Anne-Claude Gingras
- **Centre for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada.,‡‡Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - John H Brumell
- ¶Cell Biology Program, Hospital for Sick Children, Toronto, Ontario, Canada.,‡‡Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada.,§§Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada.,¶¶Sick Kids IBD Centre, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Peter K Kim
- ¶Cell Biology Program, Hospital for Sick Children, Toronto, Ontario, Canada.,‖Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - David Safronetz
- §Public Health Agency of Canada, Zoonotic Diseases and Special Pathogens Program, Winnipeg, Manitoba, Canada
| | - Brian Raught
- From the ‡Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada; .,‖‖Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5G 1L7, Canada
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10
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Wu W, Jingbo S, Xu W, Liu J, Huang Y, Sheng Q, Lv Z. S-trityl-L-cysteine, a novel Eg5 inhibitor, is a potent chemotherapeutic strategy in neuroblastoma. Oncol Lett 2018; 16:1023-1030. [PMID: 29963178 DOI: 10.3892/ol.2018.8755] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 02/27/2018] [Indexed: 01/25/2023] Open
Abstract
Eg5 is a member of the kinesin-5 family. It is involved in the formation of the bipolar spindle and serves a crucial role in mitosis; meaning that mitotic activation may serve as a chemotherapeutic strategy. However, the anticancer activity of Eg5 inhibitors in neuroblastoma remains uncharacterized. In the present study, the expression of Eg5 was examined in clinical tissue samples and neuroblastoma cell lines, SK-N-SH, SH-SY5Y and SK-N-BE2. Additionally, the antitumor activity of the Eg5 inhibitor, S-trityl-L-cysteine (STLC), was confirmed in vitro. STLC could mediate cell apoptosis, as well as cell cycle arrest, in a dose-dependent manner, which may contribute toward its antitumor activity. STLC-mediated apoptosis and cell cycle arrest were triggered by activation of the mitogen-activated protein kinase and nuclear factor kB signaling pathways. These results suggested that STLC may have potential in the in vivo treatment of neuroblastoma.
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Affiliation(s)
- Wei Wu
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai 200062, P.R. China
| | - Shao Jingbo
- Department of Hematology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai 200062, P.R. China
| | - Weijue Xu
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai 200062, P.R. China
| | - Jiangbin Liu
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai 200062, P.R. China
| | - Yiming Huang
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai 200062, P.R. China
| | - Qingfeng Sheng
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai 200062, P.R. China
| | - Zhibao Lv
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai 200062, P.R. China
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11
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Liu Y, Gupta GD, Barnabas DD, Agircan FG, Mehmood S, Wu D, Coyaud E, Johnson CM, McLaughlin SH, Andreeva A, Freund SMV, Robinson CV, Cheung SWT, Raught B, Pelletier L, van Breugel M. Direct binding of CEP85 to STIL ensures robust PLK4 activation and efficient centriole assembly. Nat Commun 2018; 9:1731. [PMID: 29712910 PMCID: PMC5928214 DOI: 10.1038/s41467-018-04122-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 04/05/2018] [Indexed: 02/08/2023] Open
Abstract
Centrosomes are required for faithful chromosome segregation during mitosis. They are composed of a centriole pair that recruits and organizes the microtubule-nucleating pericentriolar material. Centriole duplication is tightly controlled in vivo and aberrations in this process are associated with several human diseases, including cancer and microcephaly. Although factors essential for centriole assembly, such as STIL and PLK4, have been identified, the underlying molecular mechanisms that drive this process are incompletely understood. Combining protein proximity mapping with high-resolution structural methods, we identify CEP85 as a centriole duplication factor that directly interacts with STIL through a highly conserved interaction interface involving a previously uncharacterised domain of STIL. Structure-guided mutational analyses in vivo demonstrate that this interaction is essential for efficient centriolar targeting of STIL, PLK4 activation and faithful daughter centriole assembly. Taken together, our results illuminate a molecular mechanism underpinning the spatiotemporal regulation of the early stages of centriole duplication.
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Affiliation(s)
- Yi Liu
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 600 University Avenue, Toronto, ON M5G 1X5, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Gagan D Gupta
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 600 University Avenue, Toronto, ON M5G 1X5, Canada
| | - Deepak D Barnabas
- Medical Research Council - Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK
| | - Fikret G Agircan
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 600 University Avenue, Toronto, ON M5G 1X5, Canada
| | - Shahid Mehmood
- Department of Chemistry, University of Oxford, Oxford, UK
| | - Di Wu
- Department of Chemistry, University of Oxford, Oxford, UK
| | - Etienne Coyaud
- Princess Margaret Cancer Centre, University Health Network, 101 College Street, Toronto, ON M5G 1L7, Canada
| | - Christopher M Johnson
- Medical Research Council - Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK
| | - Stephen H McLaughlin
- Medical Research Council - Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK
| | - Antonina Andreeva
- Medical Research Council - Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK
| | - Stefan M V Freund
- Medical Research Council - Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK
| | | | - Sally W T Cheung
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 600 University Avenue, Toronto, ON M5G 1X5, Canada
| | - Brian Raught
- Princess Margaret Cancer Centre, University Health Network, 101 College Street, Toronto, ON M5G 1L7, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - Laurence Pelletier
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 600 University Avenue, Toronto, ON M5G 1X5, Canada.
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada.
| | - Mark van Breugel
- Medical Research Council - Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK.
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12
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Makiyama T, Higashi S, Sakane H, Nogami S, Shirataki H. γ-Taxilin temporally regulates centrosome disjunction in a Nek2A-dependent manner. Exp Cell Res 2018; 362:412-423. [DOI: 10.1016/j.yexcr.2017.12.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 12/02/2017] [Accepted: 12/06/2017] [Indexed: 12/23/2022]
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13
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Zhang X, Cha IH, Kim KY. Highly preserved consensus gene modules in human papilloma virus 16 positive cervical cancer and head and neck cancers. Oncotarget 2017; 8:114031-114040. [PMID: 29371966 PMCID: PMC5768383 DOI: 10.18632/oncotarget.23116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 11/15/2017] [Indexed: 11/25/2022] Open
Abstract
In this study, we investigated the consensus gene modules in head and neck cancer (HNC) and cervical cancer (CC). We used a publicly available gene expression dataset, GSE6791, which included 42 HNC, 14 normal head and neck, 20 CC and 8 normal cervical tissue samples. To exclude bias because of different human papilloma virus (HPV) types, we analyzed HPV16-positive samples only. We identified 3824 genes common to HNC and CC samples. Among these, 977 genes showed high connectivity and were used to construct consensus modules. We demonstrated eight consensus gene modules for HNC and CC using the dissimilarity measure and average linkage hierarchical clustering methods. These consensus modules included genes with significant biological functions, including ATP binding and extracellular exosome. Eigengen network analysis revealed the consensus modules were highly preserved with high connectivity. These findings demonstrate that HPV16-positive head and neck and cervical cancers share highly preserved consensus gene modules with common potentially therapeutic targets.
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Affiliation(s)
- Xianglan Zhang
- Department of Pathology, Yanbian University Medical College, Yanji City, Jilin Province, China.,Oral Cancer Research Institute, College of Dentistry, Yonsei University, Seoul, Korea
| | - In-Ho Cha
- Oral Cancer Research Institute, College of Dentistry, Yonsei University, Seoul, Korea.,Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University, Seoul, Korea
| | - Ki-Yeol Kim
- Dental Education Research Center, BK21 PLUS Project, College of Dentistry, Yonsei University, Seoul, Korea
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14
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Wallqvist A, Wang H, Zavaljevski N, Memišević V, Kwon K, Pieper R, Rajagopala SV, Reifman J. Mechanisms of action of Coxiella burnetii effectors inferred from host-pathogen protein interactions. PLoS One 2017; 12:e0188071. [PMID: 29176882 PMCID: PMC5703456 DOI: 10.1371/journal.pone.0188071] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 10/31/2017] [Indexed: 02/06/2023] Open
Abstract
Coxiella burnetii is an obligate Gram-negative intracellular pathogen and the etiological agent of Q fever. Successful infection requires a functional Type IV secretion system, which translocates more than 100 effector proteins into the host cytosol to establish the infection, restructure the intracellular host environment, and create a parasitophorous vacuole where the replicating bacteria reside. We used yeast two-hybrid (Y2H) screening of 33 selected C. burnetii effectors against whole genome human and murine proteome libraries to generate a map of potential host-pathogen protein-protein interactions (PPIs). We detected 273 unique interactions between 20 pathogen and 247 human proteins, and 157 between 17 pathogen and 137 murine proteins. We used orthology to combine the data and create a single host-pathogen interaction network containing 415 unique interactions between 25 C. burnetii and 363 human proteins. We further performed complementary pairwise Y2H testing of 43 out of 91 C. burnetii-human interactions involving five pathogen proteins. We used the combined data to 1) perform enrichment analyses of target host cellular processes and pathways, 2) examine effectors with known infection phenotypes, and 3) infer potential mechanisms of action for four effectors with uncharacterized functions. The host-pathogen interaction profiles supported known Coxiella phenotypes, such as adapting cell morphology through cytoskeletal re-arrangements, protein processing and trafficking, organelle generation, cholesterol processing, innate immune modulation, and interactions with the ubiquitin and proteasome pathways. The generated dataset of PPIs-the largest collection of unbiased Coxiella host-pathogen interactions to date-represents a rich source of information with respect to secreted pathogen effector proteins and their interactions with human host proteins.
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Affiliation(s)
- Anders Wallqvist
- Department of Defense Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, Fort Detrick, Maryland, United States of America
| | - Hao Wang
- Department of Defense Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, Fort Detrick, Maryland, United States of America
| | - Nela Zavaljevski
- Department of Defense Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, Fort Detrick, Maryland, United States of America
| | - Vesna Memišević
- Department of Defense Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, Fort Detrick, Maryland, United States of America
| | - Keehwan Kwon
- J. Craig Venter Institute, Rockville, Maryland, United States of America
| | - Rembert Pieper
- J. Craig Venter Institute, Rockville, Maryland, United States of America
| | | | - Jaques Reifman
- Department of Defense Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, Fort Detrick, Maryland, United States of America
- * E-mail:
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