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Therapeutically targeting oncogenic CRCs facilitates induced differentiation of NB by RA and the BET bromodomain inhibitor. MOLECULAR THERAPY-ONCOLYTICS 2021; 23:181-191. [PMID: 34729395 PMCID: PMC8526497 DOI: 10.1016/j.omto.2021.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 09/21/2021] [Indexed: 12/15/2022]
Abstract
Retinoic acids (RAs) are the most successful therapeutics for cancer differentiation therapy used in high-risk neuroblastoma (NB) maintenance therapy but are limited in effectiveness. This study identifies a strategy for improving efficacy through disruption of cancer cell identity via BET inhibitors. Mutations that block development are theorized to cause NB through retention of immature cell identities contributing to oncogenesis. NB has two interchangeable cell identities, maintained by two different core transcriptional regulatory circuitries (CRCs): a therapy-resistant mesenchymal/stem cell state and a proliferative adrenergic cell state. MYCN amplification is a common mutation of high-risk NB and recently found to block differentiation by driving high expression of the adrenergic CRC transcription factor ASCL1. We investigated whether disruption of immature CRCs can promote RA-induced differentiation since only a subset of NB patients responds to RA. We found that silencing ASCL1, a critical member of the adrenergic CRC, or global disruption of CRCs with the BET inhibitor JQ1, suppresses gene expression of multiple CRC factors, improving RA-mediated differentiation. Further, JQ1 and RA synergistically decrease proliferation and induce differentiation in NB cell lines. Our findings support preclinical studies of RA and BET inhibitors as a combination therapy in treating NB.
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2
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Siegel EM, Ajidahun A, Berglund A, Guerrero W, Eschrich S, Putney RM, Magliocco A, Riggs B, Winter K, Simko JP, Ajani JA, Guha C, Okawara GS, Abdalla I, Becker MJ, Pizzolato JF, Crane CH, Brown KD, Shibata D. Genome-wide host methylation profiling of anal and cervical carcinoma. PLoS One 2021; 16:e0260857. [PMID: 34882728 PMCID: PMC8659695 DOI: 10.1371/journal.pone.0260857] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 11/17/2021] [Indexed: 12/15/2022] Open
Abstract
HPV infection results in changes in host gene methylation which, in turn, are thought to contribute to the neoplastic progression of HPV-associated cancers. The objective of this study was to identify joint and disease-specific genome-wide methylation changes in anal and cervical cancer as well as changes in high-grade pre-neoplastic lesions. Formalin-fixed paraffin-embedded (FFPE) anal tissues (n = 143; 99% HPV+) and fresh frozen cervical tissues (n = 28; 100% HPV+) underwent microdissection, DNA extraction, HPV genotyping, bisulfite modification, DNA restoration (FFPE) and analysis by the Illumina HumanMethylation450 Array. Differentially methylated regions (DMR; t test q<0.01, 3 consecutive significant CpG probes and mean Δβ methylation value>0.3) were compared between normal and cancer specimens in partial least squares (PLS) models and then used to classify anal or cervical intraepithelial neoplasia-3 (AIN3/CIN3). In AC, an 84-gene PLS signature (355 significant probes) differentiated normal anal mucosa (NM; n = 9) from AC (n = 121) while a 36-gene PLS signature (173 significant probes) differentiated normal cervical epithelium (n = 10) from CC (n = 9). The CC progression signature was validated using three independent publicly available datasets (n = 424 cases). The AC and CC progression PLS signatures were interchangeable in segregating normal, AIN3/CIN3 and AC and CC and were found to include 17 common overlapping hypermethylated genes. Moreover, these signatures segregated AIN3/CIN3 lesions similarly into cancer-like and normal-like categories. Distinct methylation changes occur across the genome during the progression of AC and CC with overall similar profiles and add to the evidence suggesting that HPV-driven oncogenesis may result in similar non-random methylomic events. Our findings may lead to identification of potential epigenetic drivers of HPV-associated cancers and also, of potential markers to identify higher risk pre-cancerous lesions.
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Affiliation(s)
- Erin M. Siegel
- Departments of Cancer Epidemiology, Tampa, FL, United States of America
| | - Abidemi Ajidahun
- Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, United States of America
| | - Anders Berglund
- Biostatistics and Bioinformatics, Tampa, FL, United States of America
| | - Whitney Guerrero
- Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, United States of America
| | - Steven Eschrich
- Biostatistics and Bioinformatics, Tampa, FL, United States of America
| | - Ryan M. Putney
- Biostatistics and Bioinformatics, Tampa, FL, United States of America
| | - Anthony Magliocco
- Anatomic Pathology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, United States of America
| | - Bridget Riggs
- Departments of Cancer Epidemiology, Tampa, FL, United States of America
| | - Kathryn Winter
- NRG Oncology Statistics and Data Management Center–ACR, Philadelphia, PA, United States of America
| | - Jeff P. Simko
- UCSF Medical Center-Mount Zion, San Francisco, CA, United States of America
| | - Jaffer A. Ajani
- M D Anderson Cancer Center, Houston, TX, United States of America
| | - Chandan Guha
- Montefiore Medical Center, New York, NY, United States of America
| | - Gordon S. Okawara
- Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON, United States of America
| | - Ibrahim Abdalla
- Cancer Research for the Ozarks CCOP, Springfield, MO, United States of America
| | - Mark J. Becker
- Columbus Community Clinical Oncology Program, Columbus, OH, United States of America
| | - Joseph F. Pizzolato
- Mount Sinai Comprehensive Cancer Center CCOP, Miami, FL, United States of America
| | | | - Kevin D. Brown
- Department of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL, United States of America
| | - David Shibata
- Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, United States of America
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3
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Ashikawa Y, Shiromizu T, Miura K, Adachi Y, Matsui T, Bessho Y, Tanaka T, Nishimura Y. C3orf70 Is Involved in Neural and Neurobehavioral Development. Pharmaceuticals (Basel) 2019; 12:ph12040156. [PMID: 31623237 PMCID: PMC6958487 DOI: 10.3390/ph12040156] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 10/15/2019] [Indexed: 12/29/2022] Open
Abstract
Neurogenesis is the process by which undifferentiated progenitor cells develop into mature and functional neurons. Defects in neurogenesis are associated with neurodevelopmental and neuropsychiatric disorders; therefore, elucidating the molecular mechanisms underlying neurogenesis can advance our understanding of the pathophysiology of these disorders and facilitate the discovery of novel therapeutic targets. In this study, we performed a comparative transcriptomic analysis to identify common targets of the proneural transcription factors Neurog1/2 and Ascl1 during neurogenesis of human and mouse stem cells. We successfully identified C3orf70 as a novel common target gene of Neurog1/2 and Ascl1 during neurogenesis. Using in situ hybridization, we demonstrated that c3orf70a and c3orf70b, two orthologs of C3orf70, were expressed in the midbrain and hindbrain of zebrafish larvae. We generated c3orf70 knockout zebrafish using CRISPR/Cas9 technology and demonstrated that loss of c3orf70 resulted in significantly decreased expression of the mature neuron markers elavl3 and eno2. We also found that expression of irx3b, a zebrafish ortholog of IRX3 and a midbrain/hindbrain marker, was significantly reduced in c3orf70 knockout zebrafish. Finally, we demonstrated that neurobehaviors related to circadian rhythm and altered light–dark conditions were significantly impaired in c3orf70 knockout zebrafish. These results suggest that C3orf70 is involved in neural and neurobehavioral development and that defects in C3orf70 may be associated with midbrain/hindbrain-related neurodevelopmental and neuropsychiatric disorders.
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Affiliation(s)
- Yoshifumi Ashikawa
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan; (Y.A.); (T.S.); (K.M.); (Y.A.)
| | - Takashi Shiromizu
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan; (Y.A.); (T.S.); (K.M.); (Y.A.)
| | - Koki Miura
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan; (Y.A.); (T.S.); (K.M.); (Y.A.)
| | - Yuka Adachi
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan; (Y.A.); (T.S.); (K.M.); (Y.A.)
| | - Takaaki Matsui
- Gene Regulation Research, Graduate School of Biological Sciences, Nara Institute of Science and Technology, Takayama, Nara 630-0192, Japan; (T.M.); (Y.B.)
| | - Yasumasa Bessho
- Gene Regulation Research, Graduate School of Biological Sciences, Nara Institute of Science and Technology, Takayama, Nara 630-0192, Japan; (T.M.); (Y.B.)
| | - Toshio Tanaka
- Department of Systems Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan;
| | - Yuhei Nishimura
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan; (Y.A.); (T.S.); (K.M.); (Y.A.)
- Correspondence:
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4
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The proneural gene ASCL1 governs the transcriptional subgroup affiliation in glioblastoma stem cells by directly repressing the mesenchymal gene NDRG1. Cell Death Differ 2018; 26:1813-1831. [PMID: 30538287 PMCID: PMC6748080 DOI: 10.1038/s41418-018-0248-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 11/03/2018] [Accepted: 11/21/2018] [Indexed: 01/09/2023] Open
Abstract
Achaete-scute homolog 1 gene (ASCL1) is a gene classifier for the proneural (PN) transcriptional subgroup of glioblastoma (GBM) that has a relevant role in the neuronal-like differentiation of GBM cancer stem cells (CSCs) through the activation of a PN gene signature. Besides prototypical ASCL1 PN target genes, the molecular effectors mediating ASCL1 function in regulating GBM differentiation and, most relevantly, subgroup specification are currently unknown. Here we report that ASCL1 not only promotes the acquisition of a PN phenotype in CSCs by inducing a glial-to-neuronal lineage switch but also concomitantly represses mesenchymal (MES) features by directly downregulating the expression of N-Myc downstream-regulated gene 1 (NDRG1), which we propose as a novel gene classifier of MES GBMs. Increasing the expression of ASCL1 in PN CSCs results in suppression of self-renewal, promotion of differentiation and, most significantly, decrease in tumorigenesis, which is also reproduced by NDRG1 silencing. Conversely, both abrogation of ASCL1 expression in PN CSCs and enforcement of NDRG1 expression in either PN or MES CSCs induce proneural-to-mesenchymal transition (PMT) and enhanced mesenchymal features. Surprisingly, ASCL1 overexpression in MES CSCs increases malignant features and gives rise to a neuroendocrine-like secretory phenotype. Altogether, our results propose that the fine interplay between ASCL1 and its target NDRG1 might serve as potential subgroup-specific targetable vulnerability in GBM; enhancing ASCL1 expression in PN GBMs might reduce tumorigenesis, whereas repressing NDRG1 expression might be actionable to hamper the malignancy of GBM belonging to the MES subgroup.
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5
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Subcellular localisation modulates ubiquitylation and degradation of Ascl1. Sci Rep 2018; 8:4625. [PMID: 29545540 PMCID: PMC5854709 DOI: 10.1038/s41598-018-23056-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Accepted: 03/01/2018] [Indexed: 12/31/2022] Open
Abstract
The proneural transcription factor Ascl1 is a master regulator of neurogenesis, coordinating proliferation and differentiation in the central nervous system. While its expression is well characterised, post-translational regulation is much less well understood. Here we demonstrate that a population of chromatin-bound Ascl1 can be found associated with short chains of ubiquitin while cytoplasmic Ascl1 harbours much longer ubiquitin chains. Only cytoplasmic ubiquitylation targets Ascl1 for destruction, which occurs by conjugation of ubiquitin to lysines in the basic helix-loop-helix domain of Ascl1 and requires the E3 ligase Huwe1. In contrast, chromatin-bound Ascl1 associated with short ubiquitin-chains, which can occur on lysines within the N-terminal region or the bHLH domain and is not mediated by Huwe1, is not targeted for ubiquitin-mediated destruction. We therefore offer further insights into post-translational regulation of Ascl1, highlighting complex regulation of ubiquitylation and degradation in the cytoplasm and on chromatin.
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6
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Gupta S, M-Redmond T, Meng F, Tidball A, Akil H, Watson S, Parent JM, Uhler M. Fibroblast growth factor 2 regulates activity and gene expression of human post-mitotic excitatory neurons. J Neurochem 2017; 145:188-203. [PMID: 29168882 DOI: 10.1111/jnc.14255] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 11/07/2017] [Accepted: 11/10/2017] [Indexed: 12/21/2022]
Abstract
Many neuropsychiatric disorders are thought to result from subtle changes in neural circuit formation. We used human embryonic stem cells and induced pluripotent stem cells (hiPSCs) to model mature, post-mitotic excitatory neurons and examine effects of fibroblast growth factor 2 (FGF2). FGF2 gene expression is known to be altered in brain regions of major depressive disorder (MDD) patients and FGF2 has anti-depressive effects in animal models of depression. We generated stable inducible neurons (siNeurons) conditionally expressing human neurogenin-2 (NEUROG2) to generate a homogenous population of post-mitotic excitatory neurons and study the functional as well as the transcriptional effects of FGF2. Upon induction of NEUROG2 with doxycycline, the vast majority of cells are post-mitotic, and the gene expression profile recapitulates that of excitatory neurons within 6 days. Using hES cell lines that inducibly express NEUROG2 as well as GCaMP6f, we were able to characterize spontaneous calcium activity in these neurons and show that calcium transients increase in the presence of FGF2. The FGF2-responsive genes were determined by RNA-Seq. FGF2-regulated genes previously identified in non-neuronal cell types were up-regulated (EGR1, ETV4, SPRY4, and DUSP6) as a result of chronic FGF2 treatment of siNeurons. Novel neuron-specific genes were also identified that may mediate FGF2-dependent increases in synaptic efficacy including NRXN3, SYT2, and GALR1. Since several of these genes have been implicated in MDD previously, these results will provide the basis for more mechanistic studies of the role of FGF2 in MDD.
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Affiliation(s)
- Shweta Gupta
- Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, Michigan, USA
| | - Tanya M-Redmond
- Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, Michigan, USA
| | - Fan Meng
- Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, Michigan, USA
| | - Andrew Tidball
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
| | - Huda Akil
- Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, Michigan, USA
| | - Stanley Watson
- Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, Michigan, USA
| | - Jack M Parent
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
| | - Michael Uhler
- Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, Michigan, USA.,Department of Biological Chemistry, University of Michigan, Ann Arbor, Michigan, USA
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7
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Kelly GM, Gatie MI. Mechanisms Regulating Stemness and Differentiation in Embryonal Carcinoma Cells. Stem Cells Int 2017; 2017:3684178. [PMID: 28373885 PMCID: PMC5360977 DOI: 10.1155/2017/3684178] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 01/10/2017] [Accepted: 02/08/2017] [Indexed: 02/06/2023] Open
Abstract
Just over ten years have passed since the seminal Takahashi-Yamanaka paper, and while most attention nowadays is on induced, embryonic, and cancer stem cells, much of the pioneering work arose from studies with embryonal carcinoma cells (ECCs) derived from teratocarcinomas. This original work was broad in scope, but eventually led the way for us to focus on the components involved in the gene regulation of stemness and differentiation. As the name implies, ECCs are malignant in nature, yet maintain the ability to differentiate into the 3 germ layers and extraembryonic tissues, as well as behave normally when reintroduced into a healthy blastocyst. Retinoic acid signaling has been thoroughly interrogated in ECCs, especially in the F9 and P19 murine cell models, and while we have touched on this aspect, this review purposely highlights how some key transcription factors regulate pluripotency and cell stemness prior to this signaling. Another major focus is on the epigenetic regulation of ECCs and stem cells, and, towards that end, this review closes on what we see as a new frontier in combating aging and human disease, namely, how cellular metabolism shapes the epigenetic landscape and hence the pluripotency of all stem cells.
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Affiliation(s)
- Gregory M. Kelly
- Department of Biology, Molecular Genetics Unit, Western University, London, ON, Canada
- Collaborative Program in Developmental Biology, Western University, London, ON, Canada
- Department of Paediatrics and Department of Physiology and Pharmacology, Western University, London, ON, Canada
- Child Health Research Institute, London, ON, Canada
- Ontario Institute for Regenerative Medicine, Toronto, ON, Canada
- The Hospital for Sick Children, Toronto, ON, Canada
| | - Mohamed I. Gatie
- Department of Biology, Molecular Genetics Unit, Western University, London, ON, Canada
- Collaborative Program in Developmental Biology, Western University, London, ON, Canada
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8
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Ware M, Hamdi-Rozé H, Le Friec J, David V, Dupé V. Regulation of downstream neuronal genes by proneural transcription factors during initial neurogenesis in the vertebrate brain. Neural Dev 2016; 11:22. [PMID: 27923395 PMCID: PMC5142277 DOI: 10.1186/s13064-016-0077-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 11/29/2016] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Neurons arise in very specific regions of the neural tube, controlled by components of the Notch signalling pathway, proneural genes, and other bHLH transcription factors. How these specific neuronal areas in the brain are generated during development is just beginning to be elucidated. Notably, the critical role of proneural genes during differentiation of the neuronal populations that give rise to the early axon scaffold in the developing brain is not understood. The regulation of their downstream effectors remains poorly defined. RESULTS This study provides the first overview of the spatiotemporal expression of proneural genes in the neuronal populations of the early axon scaffold in both chick and mouse. Overexpression studies and mutant mice have identified a number of specific neuronal genes that are targets of proneural transcription factors in these neuronal populations. CONCLUSION Together, these results improve our understanding of the molecular mechanisms involved in differentiation of the first neuronal populations in the brain.
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Affiliation(s)
- Michelle Ware
- Institut de Génétique et Développement de Rennes, Faculté de Médecine, CNRS UMR6290, Université de Rennes 1, IFR140 GFAS, 2 Avenue du Pr. Léon Bernard, 35043, Rennes Cedex, France.,Present address: Department of Physiology, Development and Neuroscience, University of Cambridge, Anatomy Building, Downing Street, CB2 3DY, Cambridge, UK
| | - Houda Hamdi-Rozé
- Institut de Génétique et Développement de Rennes, Faculté de Médecine, CNRS UMR6290, Université de Rennes 1, IFR140 GFAS, 2 Avenue du Pr. Léon Bernard, 35043, Rennes Cedex, France.,Laboratoire de Génétique Moléculaire, CHU Pontchaillou, Rennes Cedex, France
| | - Julien Le Friec
- Institut de Génétique et Développement de Rennes, Faculté de Médecine, CNRS UMR6290, Université de Rennes 1, IFR140 GFAS, 2 Avenue du Pr. Léon Bernard, 35043, Rennes Cedex, France
| | - Véronique David
- Institut de Génétique et Développement de Rennes, Faculté de Médecine, CNRS UMR6290, Université de Rennes 1, IFR140 GFAS, 2 Avenue du Pr. Léon Bernard, 35043, Rennes Cedex, France.,Laboratoire de Génétique Moléculaire, CHU Pontchaillou, Rennes Cedex, France
| | - Valérie Dupé
- Institut de Génétique et Développement de Rennes, Faculté de Médecine, CNRS UMR6290, Université de Rennes 1, IFR140 GFAS, 2 Avenue du Pr. Léon Bernard, 35043, Rennes Cedex, France.
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9
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Mendoza-Parra MA, Malysheva V, Mohamed Saleem MA, Lieb M, Godel A, Gronemeyer H. Reconstructed cell fate-regulatory programs in stem cells reveal hierarchies and key factors of neurogenesis. Genome Res 2016; 26:1505-1519. [PMID: 27650846 PMCID: PMC5088593 DOI: 10.1101/gr.208926.116] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Accepted: 09/16/2016] [Indexed: 01/24/2023]
Abstract
Cell lineages, which shape the body architecture and specify cell functions, derive from the integration of a plethora of cell intrinsic and extrinsic signals. These signals trigger a multiplicity of decisions at several levels to modulate the activity of dynamic gene regulatory networks (GRNs), which ensure both general and cell-specific functions within a given lineage, thereby establishing cell fates. Significant knowledge about these events and the involved key drivers comes from homogeneous cell differentiation models. Even a single chemical trigger, such as the morphogen all-trans retinoic acid (RA), can induce the complex network of gene-regulatory decisions that matures a stem/precursor cell to a particular step within a given lineage. Here we have dissected the GRNs involved in the RA-induced neuronal or endodermal cell fate specification by integrating dynamic RXRA binding, chromatin accessibility, epigenetic promoter epigenetic status, and the transcriptional activity inferred from RNA polymerase II mapping and transcription profiling. Our data reveal how RA induces a network of transcription factors (TFs), which direct the temporal organization of cognate GRNs, thereby driving neuronal/endodermal cell fate specification. Modeling signal transduction propagation using the reconstructed GRNs indicated critical TFs for neuronal cell fate specification, which were confirmed by CRISPR/Cas9-mediated genome editing. Overall, this study demonstrates that a systems view of cell fate specification combined with computational signal transduction models provides the necessary insight in cellular plasticity for cell fate engineering. The present integrated approach can be used to monitor the in vitro capacity of (engineered) cells/tissues to establish cell lineages for regenerative medicine.
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Affiliation(s)
- Marco-Antonio Mendoza-Parra
- Equipe Labellisée Ligue Contre le Cancer, Department of Functional Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Centre National de la Recherche Scientifique, UMR7104, Institut National de la Santé et de la Recherche Médicale, U964, Université de Strasbourg, Illkirch, France
| | - Valeriya Malysheva
- Equipe Labellisée Ligue Contre le Cancer, Department of Functional Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Centre National de la Recherche Scientifique, UMR7104, Institut National de la Santé et de la Recherche Médicale, U964, Université de Strasbourg, Illkirch, France
| | - Mohamed Ashick Mohamed Saleem
- Equipe Labellisée Ligue Contre le Cancer, Department of Functional Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Centre National de la Recherche Scientifique, UMR7104, Institut National de la Santé et de la Recherche Médicale, U964, Université de Strasbourg, Illkirch, France
| | - Michele Lieb
- Equipe Labellisée Ligue Contre le Cancer, Department of Functional Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Centre National de la Recherche Scientifique, UMR7104, Institut National de la Santé et de la Recherche Médicale, U964, Université de Strasbourg, Illkirch, France
| | - Aurelie Godel
- Equipe Labellisée Ligue Contre le Cancer, Department of Functional Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Centre National de la Recherche Scientifique, UMR7104, Institut National de la Santé et de la Recherche Médicale, U964, Université de Strasbourg, Illkirch, France
| | - Hinrich Gronemeyer
- Equipe Labellisée Ligue Contre le Cancer, Department of Functional Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Centre National de la Recherche Scientifique, UMR7104, Institut National de la Santé et de la Recherche Médicale, U964, Université de Strasbourg, Illkirch, France
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10
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Rouhiainen A, Zhao X, Vanttola P, Qian K, Kulesskiy E, Kuja-Panula J, Gransalke K, Grönholm M, Unni E, Meistrich M, Tian L, Auvinen P, Rauvala H. HMGB4 is expressed by neuronal cells and affects the expression of genes involved in neural differentiation. Sci Rep 2016; 6:32960. [PMID: 27608812 PMCID: PMC5036535 DOI: 10.1038/srep32960] [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: 08/14/2015] [Accepted: 08/18/2016] [Indexed: 12/21/2022] Open
Abstract
HMGB4 is a new member in the family of HMGB proteins that has been characterized in sperm cells, but little is known about its functions in somatic cells. Here we show that HMGB4 and the highly similar rat Transition Protein 4 (HMGB4L1) are expressed in neuronal cells. Both proteins had slow mobility in nucleus of living NIH-3T3 cells. They interacted with histones and their differential expression in transformed cells of the nervous system altered the post-translational modification statuses of histones in vitro. Overexpression of HMGB4 in HEK 293T cells made cells more susceptible to cell death induced by topoisomerase inhibitors in an oncology drug screening array and altered variant composition of histone H3. HMGB4 regulated over 800 genes in HEK 293T cells with a p-value ≤0.013 (n = 3) in a microarray analysis and displayed strongest association with adhesion and histone H2A –processes. In neuronal and transformed cells HMGB4 regulated the expression of an oligodendrocyte marker gene PPP1R14a and other neuronal differentiation marker genes. In conclusion, our data suggests that HMGB4 is a factor that regulates chromatin and expression of neuronal differentiation markers.
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Affiliation(s)
- Ari Rouhiainen
- Neuroscience center, University of Helsinki, Finland.,Department of Biosciences, University of Helsinki, Finland
| | - Xiang Zhao
- Neuroscience center, University of Helsinki, Finland.,Schools of Pharmacy and Medicine, Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, California, USA
| | | | - Kui Qian
- Institute of Biotechnology, University of Helsinki, Finland
| | - Evgeny Kulesskiy
- Neuroscience center, University of Helsinki, Finland.,Institute for Molecular Medicine Finland, FIMM, University of Helsinki, Finland
| | | | | | | | - Emmanual Unni
- Department of Biochemistry, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Marvin Meistrich
- Department of Experimental Radiation Oncology, Division of Radiation Oncology, MD Anderson Cancer Center, Houston, Texas, USA
| | - Li Tian
- Neuroscience center, University of Helsinki, Finland.,Psychiatry Research Center, Beijing Hui Long Guan Hospital, Peking University, Beijing, China
| | - Petri Auvinen
- Institute of Biotechnology, University of Helsinki, Finland
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11
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Affiliation(s)
- Jyotshna Kanungo
- Division of Neurotoxicology, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR 72079, USA
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