1
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Vermeiren S, Cabochette P, Dannawi M, Desiderio S, San José AS, Achouri Y, Kricha S, Sitte M, Salinas-Riester G, Vanhollebeke B, Brunet JF, Bellefroid EJ. Prdm12 represses the expression of the visceral neuron determinants Phox2a/b in developing somatosensory ganglia. iScience 2023; 26:108364. [PMID: 38025786 PMCID: PMC10663820 DOI: 10.1016/j.isci.2023.108364] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/13/2023] [Accepted: 10/26/2023] [Indexed: 12/01/2023] Open
Abstract
Prdm12 is a transcriptional regulator essential for the emergence of the somatic nociceptive lineage during sensory neurogenesis. The exact mechanisms by which Prdm12 promotes nociceptor development remain, however, poorly understood. Here, we report that the trigeminal and dorsal root ganglia hypoplasia induced by the loss of Prdm12 involves Bax-dependent apoptosis and that it is accompanied by the ectopic expression of the visceral sensory neuron determinants Phox2a and Phox2b, which is, however, not sufficient to impose a complete fate switch in surviving somatosensory neurons. Mechanistically, our data reveal that Prdm12 is required from somatosensory neural precursors to early post-mitotic differentiating nociceptive neurons to repress Phox2a/b and that its repressive function is context dependent. Together, these findings reveal that besides its essential role in nociceptor survival during development, Prdm12 also promotes nociceptor fate via an additional mechanism, by preventing precursors from engaging into an alternate Phox2 driven visceral neuronal type differentiation program.
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Affiliation(s)
- Simon Vermeiren
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
| | - Pauline Cabochette
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
| | - Maya Dannawi
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
| | - Simon Desiderio
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
| | - Alba Sabaté San José
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
| | - Younes Achouri
- Transgenesis Platform, de Duve Institute, Université Catholique de Louvain, Institut de Duve, Brussels, Belgium
| | - Sadia Kricha
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
| | - Maren Sitte
- NGS Integrative Genomics, Department of Human Genetics at the University Medical Center Göttingen (UMG), 37075 Göttingen, Germany
| | - Gabriela Salinas-Riester
- NGS Integrative Genomics, Department of Human Genetics at the University Medical Center Göttingen (UMG), 37075 Göttingen, Germany
| | - Benoit Vanhollebeke
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
| | - Jean-François Brunet
- Institut de Biologie de l’ENS (IBENS), Inserm, CNRS, École Normale Supérieure, PSL Research University, 75005 Paris, France
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8197, 75005 Paris, France
- Institut National de la Santé et de la Recherche Médicale U1024, 75005 Paris, France
| | - Eric J. Bellefroid
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
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2
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Krawczyk HE, Rotsch AH, Herrfurth C, Scholz P, Shomroni O, Salinas-Riester G, Feussner I, Ischebeck T. Heat stress leads to rapid lipid remodeling and transcriptional adaptations in Nicotiana tabacum pollen tubes. Plant Physiol 2022; 189:490-515. [PMID: 35302599 PMCID: PMC9157110 DOI: 10.1093/plphys/kiac127] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 02/19/2022] [Indexed: 06/12/2023]
Abstract
After reaching the stigma, pollen grains germinate and form a pollen tube that transports the sperm cells to the ovule. Due to selection pressure between pollen tubes, pollen grains likely evolved mechanisms to quickly adapt to temperature changes to sustain elongation at the highest possible rate. We investigated these adaptions in tobacco (Nicotiana tabacum) pollen tubes grown in vitro under 22°C and 37°C by a multi-omics approach including lipidomic, metabolomic, and transcriptomic analysis. Both glycerophospholipids and galactoglycerolipids increased in saturated acyl chains under heat stress (HS), while triacylglycerols (TGs) changed less in respect to desaturation but increased in abundance. Free sterol composition was altered, and sterol ester levels decreased. The levels of sterylglycosides and several sphingolipid classes and species were augmented. Most amino acid levels increased during HS, including the noncodogenic amino acids γ-amino butyrate and pipecolate. Furthermore, the sugars sedoheptulose and sucrose showed higher levels. Also, the transcriptome underwent pronounced changes with 1,570 of 24,013 genes being differentially upregulated and 813 being downregulated. Transcripts coding for heat shock proteins and many transcriptional regulators were most strongly upregulated but also transcripts that have so far not been linked to HS. Transcripts involved in TG synthesis increased, while the modulation of acyl chain desaturation seemed not to be transcriptionally controlled, indicating other means of regulation. In conclusion, we show that tobacco pollen tubes are able to rapidly remodel their lipidome under HS likely by post-transcriptional and/or post-translational regulation.
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Affiliation(s)
- Hannah Elisa Krawczyk
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences and Göttingen Center for Molecular Biosciences (GZMB), University of Göttingen, Göttingen 37077, Germany
| | - Alexander Helmut Rotsch
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences and Göttingen Center for Molecular Biosciences (GZMB), University of Göttingen, Göttingen 37077, Germany
| | - Cornelia Herrfurth
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences and Göttingen Center for Molecular Biosciences (GZMB), University of Göttingen, Göttingen 37077, Germany
- Service Unit for Metabolomics and Lipidomics, Göttingen Center for Molecular Biosciences (GZMB), University of Göttingen, Göttingen 37077, Germany
| | - Patricia Scholz
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences and Göttingen Center for Molecular Biosciences (GZMB), University of Göttingen, Göttingen 37077, Germany
| | - Orr Shomroni
- NGS—Integrative Genomics Core Unit (NIG), University Medical Center Göttingen (UMG), Institute of Human Genetics, Göttingen 37077, Germany
| | - Gabriela Salinas-Riester
- NGS—Integrative Genomics Core Unit (NIG), University Medical Center Göttingen (UMG), Institute of Human Genetics, Göttingen 37077, Germany
| | - Ivo Feussner
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences and Göttingen Center for Molecular Biosciences (GZMB), University of Göttingen, Göttingen 37077, Germany
- Service Unit for Metabolomics and Lipidomics, Göttingen Center for Molecular Biosciences (GZMB), University of Göttingen, Göttingen 37077, Germany
| | - Till Ischebeck
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences and Göttingen Center for Molecular Biosciences (GZMB), University of Göttingen, Göttingen 37077, Germany
- Institute of Plant Biology and Biotechnology (IBBP), University of Münster, Green Biotechnology, Münster 48143, Germany
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3
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Neumann AM, Geißler C, Pilorz V, Olejniczak I, Lewis AG, Seeley RJ, Shomroni O, Salinas-Riester G, Kirchner H, Oster H. Restructuring of the male mice peripheral circadian network after bariatric surgery. J Endocrinol 2021; 250:67-79. [PMID: 34014835 DOI: 10.1530/joe-20-0611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 05/20/2021] [Indexed: 11/08/2022]
Abstract
Bariatric surgery is still the most effective long-term weight-loss therapy. Recent data indicate that surgical outcomes may be affected by diurnal food intake patterns. In this study, we aimed to investigate how surgery-induced metabolic adaptations (i.e. weight loss) interact with circadian clock function. For that reason, vertical sleeve gastrectomy (VSG) was performed in obese mice and rhythms in behavior, tissue rhythmicity, and white adipose tissue transcriptome were evaluated. VSG under constant darkness conditions led to a maximum weight loss of 18% compared to a loss of 3% after sham surgery. Post-surgical weight development was characterized by two distinct intervals of catabolic and subsequent anabolic metabolic state. Locomotor activity was not affected. However, VSG significantly increased active phase meal frequency in the anabolic state. No significant effects on clock gene rhythmicity were detected in adrenal and white adipose tissue (WAT) explant cultures. Transcriptome rhythm analyses of subcutaneous WAT revealed a reduction of cycling genes after VSG (sham: 2493 vs VSG: 1013) independent of sustained rhythms in core clock gene expression. This may be a consequence of weight loss-induced morphological reconstruction of WAT that overwrites the direct influence of the local clock machinery on the transcriptome. However, VSG altered rhythmic transcriptional regulation of WAT lipid metabolism pathways. Thus, our data suggest a reorganization of diurnal metabolic rhythms after VSG downstream of the molecular clock machinery.
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Affiliation(s)
- Anne-Marie Neumann
- Institute of Neurobiology, University of Lübeck, Lübeck, Germany
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
| | - Cathleen Geißler
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
- Institute for Human Genetics, Epigenetics and Metabolism Lab, University of Lübeck, Lübeck, Germany
| | - Violetta Pilorz
- Institute of Neurobiology, University of Lübeck, Lübeck, Germany
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
| | - Iwona Olejniczak
- Institute of Neurobiology, University of Lübeck, Lübeck, Germany
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
| | - Alfor G Lewis
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Randy J Seeley
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Orr Shomroni
- Transcriptome and Genome Analysis Core Unit, University Medical Center Göttingen, Göttingen, Germany
| | - Gabriela Salinas-Riester
- Transcriptome and Genome Analysis Core Unit, University Medical Center Göttingen, Göttingen, Germany
| | - Henriette Kirchner
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
- Institute for Human Genetics, Epigenetics and Metabolism Lab, University of Lübeck, Lübeck, Germany
- German Center for Diabetes Research (DZD), Helmholtz Zentrum München, Bayern, Germany
| | - Henrik Oster
- Institute of Neurobiology, University of Lübeck, Lübeck, Germany
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
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4
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Hahn A, Pensold D, Bayer C, Tittelmeier J, González-Bermúdez L, Marx-Blümel L, Linde J, Groß J, Salinas-Riester G, Lingner T, von Maltzahn J, Spehr M, Pieler T, Urbach A, Zimmer-Bensch G. DNA Methyltransferase 1 (DNMT1) Function Is Implicated in the Age-Related Loss of Cortical Interneurons. Front Cell Dev Biol 2020; 8:639. [PMID: 32793592 PMCID: PMC7387673 DOI: 10.3389/fcell.2020.00639] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 06/25/2020] [Indexed: 01/19/2023] Open
Abstract
Increased life expectancy in modern society comes at the cost of age-associated disabilities and diseases. Aged brains not only show reduced excitability and plasticity, but also a decline in inhibition. Age-associated defects in inhibitory circuits likely contribute to cognitive decline and age-related disorders. Molecular mechanisms that exert epigenetic control of gene expression contribute to age-associated neuronal impairments. Both DNA methylation, mediated by DNA methyltransferases (DNMTs), and histone modifications maintain neuronal function throughout lifespan. Here we provide evidence that DNMT1 function is implicated in the age-related loss of cortical inhibitory interneurons. Dnmt1 deletion in parvalbumin-positive interneurons attenuates their age-related decline in the cerebral cortex. Moreover, conditional Dnmt1-deficient mice show improved somatomotor performance and reduced aging-associated transcriptional changes. A decline in the proteostasis network, responsible for the proper degradation and removal of defective proteins, is implicated in age- and disease-related neurodegeneration. Our data suggest that DNMT1 acts indirectly on interneuron survival in aged mice by modulating the proteostasis network during life-time.
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Affiliation(s)
- Anne Hahn
- Department of Functional Epigenetics, Institute of Human Genetics, University Hospital Jena, Jena, Germany
| | - Daniel Pensold
- Department of Functional Epigenetics, Institute of Human Genetics, University Hospital Jena, Jena, Germany.,Department of Functional Epigenetics in the Animal Model, Institute of Biology II, RWTH Aachen University, Aachen, Germany
| | - Cathrin Bayer
- Department of Functional Epigenetics, Institute of Human Genetics, University Hospital Jena, Jena, Germany.,Department of Functional Epigenetics in the Animal Model, Institute of Biology II, RWTH Aachen University, Aachen, Germany
| | - Jessica Tittelmeier
- Department of Functional Epigenetics, Institute of Human Genetics, University Hospital Jena, Jena, Germany
| | - Lourdes González-Bermúdez
- Department of Functional Epigenetics, Institute of Human Genetics, University Hospital Jena, Jena, Germany
| | - Lisa Marx-Blümel
- Department of Functional Epigenetics, Institute of Human Genetics, University Hospital Jena, Jena, Germany
| | - Jenice Linde
- Department of Functional Epigenetics in the Animal Model, Institute of Biology II, RWTH Aachen University, Aachen, Germany.,Research Training Group 2416 MultiSenses - MultiScales, RWTH Aachen University, Aachen, Germany
| | - Jonas Groß
- Department of Functional Epigenetics, Institute of Human Genetics, University Hospital Jena, Jena, Germany
| | - Gabriela Salinas-Riester
- Transcriptome and Genome Analysis Laboratory (TAL), Department of Developmental Biochemistry, University of Göttingen, Göttingen, Germany
| | - Thomas Lingner
- Transcriptome and Genome Analysis Laboratory (TAL), Department of Developmental Biochemistry, University of Göttingen, Göttingen, Germany
| | - Julia von Maltzahn
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Marc Spehr
- Research Training Group 2416 MultiSenses - MultiScales, RWTH Aachen University, Aachen, Germany.,Department of Chemosensation, Institute of Biology II, RWTH Aachen University, Aachen, Germany
| | - Tomas Pieler
- Centre for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Department of Developmental Biochemistry, University of Göttingen, Göttingen, Germany
| | - Anja Urbach
- Institute of Neurology, University Hospital Jena, Jena, Germany
| | - Geraldine Zimmer-Bensch
- Department of Functional Epigenetics, Institute of Human Genetics, University Hospital Jena, Jena, Germany.,Department of Functional Epigenetics in the Animal Model, Institute of Biology II, RWTH Aachen University, Aachen, Germany.,Research Training Group 2416 MultiSenses - MultiScales, RWTH Aachen University, Aachen, Germany
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5
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Koch C, Kuske A, Joosse SA, Yigit G, Sflomos G, Thaler S, Smit DJ, Werner S, Borgmann K, Gärtner S, Mossahebi Mohammadi P, Battista L, Cayrefourcq L, Altmüller J, Salinas-Riester G, Raithatha K, Zibat A, Goy Y, Ott L, Bartkowiak K, Tan TZ, Zhou Q, Speicher MR, Müller V, Gorges TM, Jücker M, Thiery JP, Brisken C, Riethdorf S, Alix-Panabières C, Pantel K. Characterization of circulating breast cancer cells with tumorigenic and metastatic capacity. EMBO Mol Med 2020; 12:e11908. [PMID: 32667137 PMCID: PMC7507517 DOI: 10.15252/emmm.201911908] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 12/21/2022] Open
Abstract
Functional studies giving insight into the biology of circulating tumor cells (CTCs) remain scarce due to the low frequency of CTCs and lack of appropriate models. Here, we describe the characterization of a novel CTC‐derived breast cancer cell line, designated CTC‐ITB‐01, established from a patient with metastatic estrogen receptor‐positive (ER+) breast cancer, resistant to endocrine therapy. CTC‐ITB‐01 remained ER+ in culture, and copy number alteration (CNA) profiling showed high concordance between CTC‐ITB‐01 and CTCs originally present in the patient with cancer at the time point of blood draw. RNA‐sequencing data indicate that CTC‐ITB‐01 has a predominantly epithelial expression signature. Primary tumor and metastasis formation in an intraductal PDX mouse model mirrored the clinical progression of ER+ breast cancer. Downstream ER signaling was constitutively active in CTC‐ITB‐01 independent of ligand availability, and the CDK4/6 inhibitor Palbociclib strongly inhibited CTC‐ITB‐01 growth. Thus, we established a functional model that opens a new avenue to study CTC biology.
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Affiliation(s)
- Claudia Koch
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andra Kuske
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Simon A Joosse
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gökhan Yigit
- Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - George Sflomos
- ISREC - Swiss Institute for Experimental Cancer Research, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Sonja Thaler
- European Centre for Angioscience (ECAS), Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Daniel J Smit
- Institute of Biochemistry and Signal Transduction, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stefan Werner
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kerstin Borgmann
- Radiobiology& Experimental Radiooncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sebastian Gärtner
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Parinaz Mossahebi Mohammadi
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Laura Battista
- ISREC - Swiss Institute for Experimental Cancer Research, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Laure Cayrefourcq
- Laboratory of Rare Human Circulating Cells (LCCRH), University Medical Centre, Montpellier, France.,Montpellier University, Montpellier, France
| | - Janine Altmüller
- Cologne Center for Genomics, University of Cologne, Cologne, Germany
| | - Gabriela Salinas-Riester
- NGS Integrative Genomics Core Unit, Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Kaamini Raithatha
- NGS Integrative Genomics Core Unit, Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Arne Zibat
- Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Yvonne Goy
- Radiobiology& Experimental Radiooncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Leonie Ott
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kai Bartkowiak
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tuan Zea Tan
- Cancer Science Institute of Singapore, National University of Singapore, Singapore City, Singapore
| | - Qing Zhou
- Institute of Human Genetics, Diagnostic and Research Center for Molecular BioMedicine, Medical University of Graz, Graz, Austria
| | - Michael R Speicher
- Institute of Human Genetics, Diagnostic and Research Center for Molecular BioMedicine, Medical University of Graz, Graz, Austria
| | - Volkmar Müller
- Department of Gynecology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tobias M Gorges
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Manfred Jücker
- Institute of Biochemistry and Signal Transduction, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jean-Paul Thiery
- INSERM Unit 1186, Comprehensive Cancer Center, Institut Gustave Roussy, Villejuif, France
| | - Cathrin Brisken
- ISREC - Swiss Institute for Experimental Cancer Research, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.,Breast Cancer Now Research Centre, Institute of Cancer Research, London, UK
| | - Sabine Riethdorf
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Catherine Alix-Panabières
- Laboratory of Rare Human Circulating Cells (LCCRH), University Medical Centre, Montpellier, France.,Montpellier University, Montpellier, France
| | - Klaus Pantel
- Department of Tumor Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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6
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Pensold D, Reichard J, Van Loo KMJ, Ciganok N, Hahn A, Bayer C, Liebmann L, Groß J, Tittelmeier J, Lingner T, Salinas-Riester G, Symmank J, Halfmann C, González-Bermúdez L, Urbach A, Gehrmann J, Costa I, Pieler T, Hübner CA, Vatter H, Kampa B, Becker AJ, Zimmer-Bensch G. DNA Methylation-Mediated Modulation of Endocytosis as Potential Mechanism for Synaptic Function Regulation in Murine Inhibitory Cortical Interneurons. Cereb Cortex 2020; 30:3921-3937. [PMID: 32147726 PMCID: PMC7264686 DOI: 10.1093/cercor/bhaa009] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 12/14/2019] [Accepted: 01/10/2020] [Indexed: 12/25/2022] Open
Abstract
The balance of excitation and inhibition is essential for cortical information processing, relying on the tight orchestration of the underlying subcellular processes. Dynamic transcriptional control by DNA methylation, catalyzed by DNA methyltransferases (DNMTs), and DNA demethylation, achieved by ten–eleven translocation (TET)-dependent mechanisms, is proposed to regulate synaptic function in the adult brain with implications for learning and memory. However, focus so far is laid on excitatory neurons. Given the crucial role of inhibitory cortical interneurons in cortical information processing and in disease, deciphering the cellular and molecular mechanisms of GABAergic transmission is fundamental. The emerging relevance of DNMT and TET-mediated functions for synaptic regulation irrevocably raises the question for the targeted subcellular processes and mechanisms. In this study, we analyzed the role dynamic DNA methylation has in regulating cortical interneuron function. We found that DNMT1 and TET1/TET3 contrarily modulate clathrin-mediated endocytosis. Moreover, we provide evidence that DNMT1 influences synaptic vesicle replenishment and GABAergic transmission, presumably through the DNA methylation-dependent transcriptional control over endocytosis-related genes. The relevance of our findings is supported by human brain sample analysis, pointing to a potential implication of DNA methylation-dependent endocytosis regulation in the pathophysiology of temporal lobe epilepsy, a disease characterized by disturbed synaptic transmission.
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Affiliation(s)
- Daniel Pensold
- Institute of Human Genetics, University Hospital Jena, 07743 Jena, Germany.,Division of Functional Epigenetics, Institute of Zoology (Biology 2), RWTH Aachen University, 52074 Aachen, Germany
| | - Julia Reichard
- Institute of Human Genetics, University Hospital Jena, 07743 Jena, Germany.,Division of Functional Epigenetics, Institute of Zoology (Biology 2), RWTH Aachen University, 52074 Aachen, Germany.,Research Training Group 2416 Multi Senses-Multi Scales, RWTH Aachen University, 52074 Aachen, Germany
| | - Karen M J Van Loo
- Department of Neuropathology, Section for Translational Epilepsy Research, University of Bonn Medical Center, 53105 Bonn, Germany
| | - Natalja Ciganok
- Division of Systems Neurophysiology, Institute of Zoology (Biology 2), RWTH Aachen University, 52074 Aachen, Germany
| | - Anne Hahn
- Institute of Human Genetics, University Hospital Jena, 07743 Jena, Germany
| | - Cathrin Bayer
- Institute of Human Genetics, University Hospital Jena, 07743 Jena, Germany.,Division of Functional Epigenetics, Institute of Zoology (Biology 2), RWTH Aachen University, 52074 Aachen, Germany
| | - Lutz Liebmann
- Institute of Human Genetics, University Hospital Jena, 07743 Jena, Germany
| | - Jonas Groß
- Institute of Human Genetics, University Hospital Jena, 07743 Jena, Germany
| | | | - Thomas Lingner
- Department of Developmental Biochemistry, Transcriptome and Genome Analysis Laboratory (TAL), University of Goettingen, 37077 Goettingen, Germany
| | - Gabriela Salinas-Riester
- Department of Developmental Biochemistry, Transcriptome and Genome Analysis Laboratory (TAL), University of Goettingen, 37077 Goettingen, Germany
| | - Judit Symmank
- Institute of Human Genetics, University Hospital Jena, 07743 Jena, Germany
| | - Claas Halfmann
- Division of Systems Neurophysiology, Institute of Zoology (Biology 2), RWTH Aachen University, 52074 Aachen, Germany
| | | | - Anja Urbach
- Clinic for Neurology, University Hospital Jena, 07743 Jena, Germany
| | - Julia Gehrmann
- Institute for Computational Genomics, University Hospital Aachen, RWTH Aachen University, 52074 Aachen, Germany
| | - Ivan Costa
- Institute for Computational Genomics, University Hospital Aachen, RWTH Aachen University, 52074 Aachen, Germany
| | - Tomas Pieler
- Department of Developmental Biochemistry, Centre for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), University of Goettingen, 37077 Goettingen, Germany
| | - Christian A Hübner
- Institute of Human Genetics, University Hospital Jena, 07743 Jena, Germany
| | - Hartmut Vatter
- Clinic for Neurosurgery, University of Bonn Medical Center, 53105 Bonn, Germany
| | - Björn Kampa
- Division of Systems Neurophysiology, Institute of Zoology (Biology 2), RWTH Aachen University, 52074 Aachen, Germany.,JARA BRAIN, Institute for Neuroscience and Medicine, Forschungszentrum Jülich, 52425, Germany
| | - Albert J Becker
- Department of Neuropathology, Section for Translational Epilepsy Research, University of Bonn Medical Center, 53105 Bonn, Germany
| | - Geraldine Zimmer-Bensch
- Institute of Human Genetics, University Hospital Jena, 07743 Jena, Germany.,Division of Functional Epigenetics, Institute of Zoology (Biology 2), RWTH Aachen University, 52074 Aachen, Germany.,Research Training Group 2416 Multi Senses-Multi Scales, RWTH Aachen University, 52074 Aachen, Germany
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7
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Wilms B, Leineweber EM, Mölle M, Chamorro R, Pommerenke C, Salinas-Riester G, Sina C, Lehnert H, Oster H, Schmid SM. Sleep Loss Disrupts Morning-to-Evening Differences in Human White Adipose Tissue Transcriptome. J Clin Endocrinol Metab 2019; 104:1687-1696. [PMID: 30535338 DOI: 10.1210/jc.2018-01663] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 12/03/2018] [Indexed: 11/19/2022]
Abstract
CONTEXT Chronodisruption, as caused by such conditions as perturbations of 24-hour rhythms of physiology and behavior, may promote the development of metabolic diseases. OBJECTIVE To assess the acute effects of sleep curtailment on circadian regulation (i.e., morning-to-evening differences) of white adipose tissue (WAT) transcriptome in normal-weight men. DESIGN Fifteen healthy men aged 18 to 30 years (mean ± SEM, 24.0 ± 0.9years) were studied. In randomized, balanced order they underwent three separate nights with regular sleep duration (8 hours of sleep between 11:00 pm and 7:00 am), sleep restriction (4 hours of sleep between 3:00 am and 7:00 am), and sleep deprivation (no sleep at all). Sleep was polysomnographically evaluated. WAT biopsy samples were taken twice at 9:00 pm and 7:00 am to assess morning-to-evening differences. WAT transcriptome profile was assessed by RNA sequencing, and expression of relevant circadian core clock genes were analyzed. Glucose homeostasis, lipid profile, and adipokines were assessed. RESULTS Sleep restriction dramatically blunted morning-to-evening transcriptome variations with further dampening after sleep deprivation. Although most core clock genes remained stably rhythmic, morning-to-evening regulated pathways of carbohydrate and lipid metabolism were highly sensitive to sleep loss. In particular, genes associated with carbohydrate breakdown lost rhythmicity after sleep deprivation, with an overall trend toward an upregulation in the morning. In line with specific transcriptional changes in WAT, retinol-binding-protein 4 was increased and β-cell secretory capacity was diminished. CONCLUSIONS Acute sleep loss induces a profound restructuring of morning-to-evening WAT transcriptome with uncoupling from the local clock machinery, resulting in increased WAT carbohydrate turnover and impaired glucose homeostasis. Our data support an optimization of sleep duration and timing to prevent metabolic disorders such as obesity and type 2 diabetes.
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Affiliation(s)
- Britta Wilms
- Department of Internal Medicine I, University of Lübeck, Lübeck, Germany
- German Center for Diabetes Research, Neuherberg, Germany
| | - Elena M Leineweber
- Department of Internal Medicine I, University of Lübeck, Lübeck, Germany
| | - Matthias Mölle
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
| | - Rodrigo Chamorro
- Department of Internal Medicine I, University of Lübeck, Lübeck, Germany
- Department of Nutrition, University of Chile, Santiago, Chile
| | - Claudia Pommerenke
- Transcriptome Analysis Laboratory, University of Göttingen, Göttingen, Germany
| | | | - Christian Sina
- Department of Internal Medicine I, University of Lübeck, Lübeck, Germany
- Institute of Nutritional Medicine, University of Lübeck, Lübeck, Germany
| | - Hendrik Lehnert
- Department of Internal Medicine I, University of Lübeck, Lübeck, Germany
- German Center for Diabetes Research, Neuherberg, Germany
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
| | - Henrik Oster
- Institute of Neurobiology, University of Lübeck, Lübeck, Germany
| | - Sebastian M Schmid
- Department of Internal Medicine I, University of Lübeck, Lübeck, Germany
- German Center for Diabetes Research, Neuherberg, Germany
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
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8
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Pensold D, Symmank J, Hahn A, Lingner T, Salinas-Riester G, Downie BR, Ludewig F, Rotzsch A, Haag N, Andreas N, Schubert K, Hübner CA, Pieler T, Zimmer G. The DNA Methyltransferase 1 (DNMT1) Controls the Shape and Dynamics of Migrating POA-Derived Interneurons Fated for the Murine Cerebral Cortex. Cereb Cortex 2018; 27:5696-5714. [PMID: 29117290 DOI: 10.1093/cercor/bhw341] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Indexed: 01/24/2023] Open
Abstract
The proliferative niches in the subpallium generate a rich cellular variety fated for diverse telencephalic regions. The embryonic preoptic area (POA) represents one of these domains giving rise to the pool of cortical GABAergic interneurons and glial cells, in addition to striatal and residual POA cells. The migration from sites of origin within the subpallium to the distant targets like the cerebral cortex, accomplished by the adoption and maintenance of a particular migratory morphology, is a critical step during interneuron development. To identify factors orchestrating this process, we performed single-cell transcriptome analysis and detected Dnmt1 expression in murine migratory GABAergic POA-derived cells. Deletion of Dnmt1 in postmitotic immature cells of the POA caused defective migration and severely diminished adult cortical interneuron numbers. We found that DNA methyltransferase 1 (DNMT1) preserves the migratory shape in part through negative regulation of Pak6, which stimulates neuritogenesis at postmigratory stages. Our data underline the importance of DNMT1 for the migration of POA-derived cells including cortical interneurons.
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Affiliation(s)
- Daniel Pensold
- Institute of Human Genetics, University Hospital Jena, 07743 Jena, Germany
| | - Judit Symmank
- Institute of Human Genetics, University Hospital Jena, 07743 Jena, Germany
| | - Anne Hahn
- Institute of Human Genetics, University Hospital Jena, 07743 Jena, Germany
| | - Thomas Lingner
- Transcriptome and Genome Analysis Laboratory (TAL), Department of Developmental Biochemistry, University of Goettingen, 37077 Goettingen, Germany
| | - Gabriela Salinas-Riester
- Transcriptome and Genome Analysis Laboratory (TAL), Department of Developmental Biochemistry, University of Goettingen, 37077 Goettingen, Germany
| | - Bryan R Downie
- Transcriptome and Genome Analysis Laboratory (TAL), Department of Developmental Biochemistry, University of Goettingen, 37077 Goettingen, Germany
| | - Fabian Ludewig
- Transcriptome and Genome Analysis Laboratory (TAL), Department of Developmental Biochemistry, University of Goettingen, 37077 Goettingen, Germany
| | - Anne Rotzsch
- Institute of Human Genetics, University Hospital Jena, 07743 Jena, Germany
| | - Natja Haag
- Institute of Biochemistry I, University Hospital Jena, 07743 Jena, Germany.,Institute of Human Genetics, University Hospital RWTH Aachen, Aachen, Germany
| | - Nico Andreas
- FACS Core Facility, Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), 07745 Jena, Germany
| | - Katrin Schubert
- FACS Core Facility, Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), 07745 Jena, Germany
| | - Christian A Hübner
- Institute of Human Genetics, University Hospital Jena, 07743 Jena, Germany
| | - Tomas Pieler
- Centre for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Department of Developmental Biochemistry, University of Goettingen, 37077 Goettingen, Germany
| | - Geraldine Zimmer
- Institute of Human Genetics, University Hospital Jena, 07743 Jena, Germany
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9
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Herkt SC, Kuvardina ON, Herglotz J, Schneider L, Meyer A, Pommerenke C, Salinas-Riester G, Seifried E, Bonig H, Lausen J. Protein arginine methyltransferase 6 controls erythroid gene expression and differentiation of human CD34 + progenitor cells. Haematologica 2017; 103:18-29. [PMID: 29025910 PMCID: PMC5777187 DOI: 10.3324/haematol.2017.174516] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 10/06/2017] [Indexed: 01/22/2023] Open
Abstract
Hematopoietic differentiation is driven by transcription factors, which orchestrate a finely tuned transcriptional network. At bipotential branching points lineage decisions are made, where key transcription factors initiate cell type-specific gene expression programs. These programs are stabilized by the epigenetic activity of recruited chromatin-modifying cofactors. An example is the association of the transcription factor RUNX1 with protein arginine methyltransferase 6 (PRMT6) at the megakaryocytic/erythroid bifurcation. However, little is known about the specific influence of PRMT6 on this important branching point. Here, we show that PRMT6 inhibits erythroid gene expression during megakaryopoiesis of primary human CD34+ progenitor cells. PRMT6 is recruited to erythroid genes, such as glycophorin A. Consequently, a repressive histone modification pattern with high H3R2me2a and low H3K4me3 is established. Importantly, inhibition of PRMT6 by shRNA or small molecule inhibitors leads to upregulation of erythroid genes and promotes erythropoiesis. Our data reveal that PRMT6 plays a role in the control of erythroid/megakaryocytic differentiation and open up the possibility that manipulation of PRMT6 activity could facilitate enhanced erythropoiesis for therapeutic use.
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Affiliation(s)
- Stefanie C Herkt
- Institute for Transfusion Medicine and Immunohematology, Goethe-University and German Red Cross Blood Service, Frankfurt am Main
| | - Olga N Kuvardina
- Institute for Transfusion Medicine and Immunohematology, Goethe-University and German Red Cross Blood Service, Frankfurt am Main
| | - Julia Herglotz
- Institute for Transfusion Medicine and Immunohematology, Goethe-University and German Red Cross Blood Service, Frankfurt am Main
| | - Lucas Schneider
- Institute for Transfusion Medicine and Immunohematology, Goethe-University and German Red Cross Blood Service, Frankfurt am Main
| | - Annekarin Meyer
- Institute for Transfusion Medicine and Immunohematology, Goethe-University and German Red Cross Blood Service, Frankfurt am Main
| | | | | | - Erhard Seifried
- Institute for Transfusion Medicine and Immunohematology, Goethe-University and German Red Cross Blood Service, Frankfurt am Main
| | - Halvard Bonig
- Institute for Transfusion Medicine and Immunohematology, Goethe-University and German Red Cross Blood Service, Frankfurt am Main
| | - Jörn Lausen
- Institute for Transfusion Medicine and Immunohematology, Goethe-University and German Red Cross Blood Service, Frankfurt am Main
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10
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Schmidt T, Leha A, Salinas-Riester G. Treatment of prostate cancer cells with S-adenosylmethionine leads to genome-wide alterations in transcription profiles. Gene 2016; 595:161-167. [PMID: 27688072 DOI: 10.1016/j.gene.2016.09.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 09/22/2016] [Indexed: 12/26/2022]
Abstract
The hypomethylation of DNA may support tumor progression; however, the mechanism underlying this relationship is not clear. Several studies have demonstrated that the in vitro application of the methyl donor S-adenosylmethionine (SAM) leads to promoter remethylation and the downregulation of proto-oncogene expression in cancer cells. It is not clear if this represents a general mechanism of SAM or is limited to selected genes. We examined this problem using new bisulfite sequencing and transcriptomic technologies. Treatment with SAM caused the downregulation of proliferation, migration, and invasion of prostate cancer (PC-3) cells. RNA sequencing revealed the genome-wide downregulation of genes involved in proliferation, migration, invasion, and angiogenesis. Real-time PCR of a subset of the genes confirmed these results. Reduced representation bisulfite sequencing (RRBS) displayed only minor differential methylation between treated cells and controls. In summary, we confirmed the anti-proliferative and anti-invasive effects of SAM. Additionally, we observed anti-migratory effects and downregulation of genes, especially those related to cancerogenesis. For some of the related genes, this is the first reported evidence of an association with prostate cancer. However, genome-wide modifications in methylation profiles were not observed by RRBS; thus, they are obviously not a major cause of alteration in transcription profiles and anti-cancer effects.
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Affiliation(s)
- Thomas Schmidt
- Institute of Anatomy and Clinical Morphology, University of Witten/Herdecke, 58448 Witten, Germany.
| | - Andreas Leha
- Department of Medical Statistics, University Medical Center, Goettingen, 37073 Goettingen, Germany
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11
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Ufer F, Vargas P, Engler JB, Tintelnot J, Schattling B, Winkler H, Bauer S, Kursawe N, Willing A, Keminer O, Ohana O, Salinas-Riester G, Pless O, Kuhl D, Friese MA. Arc/Arg3.1 governs inflammatory dendritic cell migration from the skin and thereby controls T cell activation. Sci Immunol 2016; 1:eaaf8665. [PMID: 28783680 DOI: 10.1126/sciimmunol.aaf8665] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 08/24/2016] [Indexed: 12/30/2022]
Abstract
Skin-migratory dendritic cells (migDCs) are pivotal antigen-presenting cells that continuously transport antigens to draining lymph nodes and regulate immune responses. However, identification of migDCs is complicated by the lack of distinguishing markers, and it remains unclear which molecules determine their migratory capacity during inflammation. We show that, in the skin, the neuronal plasticity molecule activity-regulated cytoskeleton-associated protein/activity-regulated gene 3.1 (Arc/Arg3.1) was strictly confined to migDCs. Mechanistically, Arc/Arg3.1 was required for accelerated DC migration during inflammation because it regulated actin dynamics through nonmuscle myosin II. Accordingly, Arc/Arg3.1-dependent DC migration was critical for mounting T cell responses in experimental autoimmune encephalomyelitis and allergic contact dermatitis. Thus, Arc/Arg3.1 was restricted to migDCs in the skin and drove fast DC migration by exclusively coordinating cytoskeletal changes in response to inflammatory challenges. These findings commend Arc/Arg3.1 as a universal switch in migDCs that may be exploited to selectively modify immune responses.
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Affiliation(s)
- Friederike Ufer
- Institut für Neuroimmunologie und Multiple Sklerose, Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Pablo Vargas
- Institut Curie, PSL Research University, CNRS, UMR 144, 75005 Paris, France
| | - Jan Broder Engler
- Institut für Neuroimmunologie und Multiple Sklerose, Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Joseph Tintelnot
- Institut für Neuroimmunologie und Multiple Sklerose, Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Benjamin Schattling
- Institut für Neuroimmunologie und Multiple Sklerose, Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Hana Winkler
- Institut für Neuroimmunologie und Multiple Sklerose, Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Simone Bauer
- Institut für Neuroimmunologie und Multiple Sklerose, Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Nina Kursawe
- Institut für Neuroimmunologie und Multiple Sklerose, Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Anne Willing
- Institut für Neuroimmunologie und Multiple Sklerose, Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Oliver Keminer
- Fraunhofer-Institut für Molekularbiologie und Angewandte Oekologie IME, ScreeningPort, 22525 Hamburg, Germany
| | - Ora Ohana
- Institut für Molekulare und Zelluläre Kognition, Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Gabriela Salinas-Riester
- Microarray and Deep-Sequencing Core Facility, Universitätsmedizin Göttingen, 37077 Göttingen, Germany
| | - Ole Pless
- Fraunhofer-Institut für Molekularbiologie und Angewandte Oekologie IME, ScreeningPort, 22525 Hamburg, Germany
| | - Dietmar Kuhl
- Institut für Molekulare und Zelluläre Kognition, Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Manuel A Friese
- Institut für Neuroimmunologie und Multiple Sklerose, Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, 20251 Hamburg, Germany.
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12
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Debowski K, Drummer C, Lentes J, Cors M, Dressel R, Lingner T, Salinas-Riester G, Fuchs S, Sasaki E, Behr R. The transcriptomes of novel marmoset monkey embryonic stem cell lines reflect distinct genomic features. Sci Rep 2016; 6:29122. [PMID: 27385131 PMCID: PMC4935898 DOI: 10.1038/srep29122] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 06/13/2016] [Indexed: 12/21/2022] Open
Abstract
Embryonic stem cells (ESCs) are useful for the study of embryonic development. However, since research on naturally conceived human embryos is limited, non-human primate (NHP) embryos and NHP ESCs represent an excellent alternative to the corresponding human entities. Though, ESC lines derived from naturally conceived NHP embryos are still very rare. Here, we report the generation and characterization of four novel ESC lines derived from natural preimplantation embryos of the common marmoset monkey (Callithrix jacchus). For the first time we document derivation of NHP ESCs derived from morula stages. We show that quantitative chromosome-wise transcriptome analyses precisely reflect trisomies present in both morula-derived ESC lines. We also demonstrate that the female ESC lines exhibit different states of X-inactivation which is impressively reflected by the abundance of the lncRNA X inactive-specific transcript (XIST). The novel marmoset ESC lines will promote basic primate embryo and ESC studies as well as preclinical testing of ESC-based regenerative approaches in NHP.
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Affiliation(s)
- Katharina Debowski
- Platform Degenerative Diseases, German Primate Center - Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen, Germany
| | - Charis Drummer
- Platform Degenerative Diseases, German Primate Center - Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen, Germany
| | - Jana Lentes
- Platform Degenerative Diseases, German Primate Center - Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen, Germany
| | - Maren Cors
- Platform Degenerative Diseases, German Primate Center - Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen, Germany
| | - Ralf Dressel
- Institute of Cellular and Molecular Immunology, University Medical Center Göttingen (UMG), Humboldtallee 34, 37073 Göttingen, Germany.,DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Germany
| | - Thomas Lingner
- Microarray and Deep-Sequencing Core Facility, University Medical Center Göttingen (UMG), Justus-von-Liebig-Weg 11, 37077 Göttingen, Germany
| | - Gabriela Salinas-Riester
- Microarray and Deep-Sequencing Core Facility, University Medical Center Göttingen (UMG), Justus-von-Liebig-Weg 11, 37077 Göttingen, Germany
| | - Sigrid Fuchs
- Department of Human Genetics, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Erika Sasaki
- Department of Applied Developmental Biology, Central Institute for Experimental Animals, 3-25-12 Tonomachi Kawasaki-ku, Kawasaki, 210-0821 Japan.,Keio Advanced Research Center, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Rüdiger Behr
- Platform Degenerative Diseases, German Primate Center - Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen, Germany.,DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Germany
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13
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Hüttenrauch M, Brauß A, Kurdakova A, Borgers H, Klinker F, Liebetanz D, Salinas-Riester G, Wiltfang J, Klafki HW, Wirths O. Physical activity delays hippocampal neurodegeneration and rescues memory deficits in an Alzheimer disease mouse model. Transl Psychiatry 2016; 6:e800. [PMID: 27138799 PMCID: PMC5070068 DOI: 10.1038/tp.2016.65] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 03/11/2016] [Indexed: 01/12/2023] Open
Abstract
The evidence for a protective role of physical activity on the risk and progression of Alzheimer's disease (AD) has been growing in the last years. Here we studied the influence of a prolonged physical and cognitive stimulation on neurodegeneration, with special emphasis on hippocampal neuron loss and associated behavioral impairment in the Tg4-42 mouse model of AD. Tg4-42 mice overexpress Aβ4-42 without any mutations, and develop an age-dependent hippocampal neuron loss associated with a severe memory decline. We demonstrate that long-term voluntary exercise diminishes CA1 neuron loss and completely rescues spatial memory deficits in different experimental settings. This was accompanied by changes in the gene expression profile of Tg4-42 mice. Deep sequencing analysis revealed an upregulation of chaperones involved in endoplasmatic reticulum protein processing, which might be intimately linked to the beneficial effects seen upon long-term exercise. We believe that we provide evidence for the first time that enhanced physical activity counteracts neuron loss and behavioral deficits in a transgenic AD mouse model. The present findings underscore the relevance of increased physical activity as a potential strategy in the prevention of dementia.
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Affiliation(s)
- M Hüttenrauch
- Department of Psychiatry and
Psychotherapy, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
| | - A Brauß
- Department of Psychiatry and
Psychotherapy, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
| | - A Kurdakova
- Department of Psychiatry and
Psychotherapy, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
| | - H Borgers
- Department of Psychiatry and
Psychotherapy, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
| | - F Klinker
- Department of Clinical
Neurophysiology, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
| | - D Liebetanz
- Department of Clinical
Neurophysiology, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
| | - G Salinas-Riester
- Department of Developmental
Biochemistry, DNA Microarray and Deep-Sequencing Facility, University
Medical Center (UMG), Georg-August-University,
Göttingen, Germany
| | - J Wiltfang
- Department of Psychiatry and
Psychotherapy, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
- German Center for Neurodegenerative
Diseases (DZNE), Göttingen, Germany
| | - H W Klafki
- Department of Psychiatry and
Psychotherapy, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
| | - O Wirths
- Department of Psychiatry and
Psychotherapy, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
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14
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Tomas-Roig J, Piscitelli F, Gil V, del Río J, Moore T, Agbemenyah H, Salinas-Riester G, Pommerenke C, Lorenzen S, Beißbarth T, Hoyer-Fender S, Di Marzo V, Havemann-Reinecke U. Social defeat leads to changes in the endocannabinoid system: An overexpression of calreticulin and motor impairment in mice. Behav Brain Res 2016; 303:34-43. [DOI: 10.1016/j.bbr.2016.01.036] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 01/13/2016] [Accepted: 01/16/2016] [Indexed: 12/12/2022]
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15
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Nitzki F, Tolosa EJ, Cuvelier N, Frommhold A, Salinas-Riester G, Johnsen SA, Fernandez-Zapico ME, Hahn H. Overexpression of mutant Ptch in rhabdomyosarcomas is associated with promoter hypomethylation and increased Gli1 and H3K4me3 occupancy. Oncotarget 2016; 6:9113-24. [PMID: 25823816 PMCID: PMC4496206 DOI: 10.18632/oncotarget.3272] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 02/05/2015] [Indexed: 11/25/2022] Open
Abstract
Mice with heterozygous loss of the tumor suppressor Patched1 (Ptch) develop rhabdomyosarcoma (RMS)-like tumors. However, Ptch transcripts are consistently overexpressed in these tumors. We have recently shown that the upregulated transcripts are derived from the mutated Ptch allele thus leading to the hypothesis that the wild-type allele is repressed during RMS development. Here we describe epigenetic changes taking place at the Ptch locus during RMS development. We showed a lower degree of DNA-methylation in methylation-sensitive CpG regions of the Ptch promoter in RMS compared to normal muscle from heterozygous Ptch animals. In agreement with these results, treatment of heterozygous Ptch mice with the DNA demethylating agent 5-aza-2-deoxycytidine (5-aza-dC) between embryonic days E9.5–E11.5 significantly accelerated RMS formation. Since Ptch promoter methylation occurs after/around E13.5, the window for RMS initiation during embryogenesis, these results provide additional evidence that Ptch promoter hypomethylation may contribute to RMS formation. We have also demonstrated increased trimethylation of histone H3 lysine 4 (H3K4me3) and preferential binding of Gli1, a known Ptch activator, to the mutant locus in RMS. Together, these findings support an alternative model for RMS formation in heterozygous Ptch mice including loss of methylation and concomitant occupancy by activating histone marks of mutant Ptch.
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Affiliation(s)
- Frauke Nitzki
- Department of Human Genetics, University Medical Center, Göttingen, Germany
| | - Ezequiel J Tolosa
- Schulze Center for Novel Therapeutics, Division of Oncology Research, Mayo Clinic, Rochester, MN, USA
| | - Nicole Cuvelier
- Department of Human Genetics, University Medical Center, Göttingen, Germany
| | - Anke Frommhold
- Department of Human Genetics, University Medical Center, Göttingen, Germany
| | | | - Steven A Johnsen
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - Martin E Fernandez-Zapico
- Schulze Center for Novel Therapeutics, Division of Oncology Research, Mayo Clinic, Rochester, MN, USA
| | - Heidi Hahn
- Department of Human Genetics, University Medical Center, Göttingen, Germany
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16
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Pirouz M, Rahjouei A, Shamsi F, Eckermann KN, Salinas-Riester G, Pommerenke C, Kessel M. Destabilization of pluripotency in the absence of Mad2l2. Cell Cycle 2016; 14:1596-610. [PMID: 25928475 DOI: 10.1080/15384101.2015.1026485] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
The induction and maintenance of pluripotency requires the expression of several core factors at appropriate levels (Oct4, Sox2, Klf4, Prdm14). A subset of these proteins (Oct4, Sox2, Prdm14) also plays crucial roles for the establishment of primordial germ cells (PGCs). Here we demonstrate that the Mad2l2 (MAD2B, Rev7) gene product is not only required by PGCs, but also by pluripotent embryonic stem cells (ESCs), depending on the growth conditions. Mad2l2(-/-) ESCs were unstable in LIF/serum medium, and differentiated into primitive endoderm. However, they could be stably propagated using small molecule inhibitors of MAPK signaling. Several components of the MAPK cascade were up- or downregulated even in undifferentiated Mad2l2(-/-) ESCs. Global levels of repressive histone H3 variants were increased in mutant ESCs, and the epigenetic signatures on pluripotency-, primitive endoderm-, and MAPK-related loci differed. Thus, H3K9me2 repressed the Nanog promoter, while the promoter of Gata4 lost H3K27me3 and became de-repressed in LIF/serum condition. Promoters associated with genes involved in MAPK signaling also showed misregulation of these histone marks. Such epigenetic modifications could be indirect consequences of mutating Mad2l2. However, our previous observations suggested the histone methyltransferases as direct (G9a) or indirect (Ezh2) targets of Mad2l2. In effect, the intricate balance necessary for pluripotency becomes perturbed in the absence of Mad2l2.
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Affiliation(s)
- Mehdi Pirouz
- a Department of Molecular Cell Biology ; Max Planck Institute for Biophysical Chemistry ; Goettingen ; Germany
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Tomas-Roig J, Wirths O, Salinas-Riester G, Havemann-Reinecke U. The Cannabinoid CB1/CB2 Agonist WIN55212.2 Promotes Oligodendrocyte Differentiation In Vitro and Neuroprotection During the Cuprizone-Induced Central Nervous System Demyelination. CNS Neurosci Ther 2016; 22:387-95. [PMID: 26842941 PMCID: PMC5067581 DOI: 10.1111/cns.12506] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 12/07/2015] [Accepted: 12/08/2015] [Indexed: 12/13/2022] Open
Abstract
Aim and methods Different types of insults to the CNS lead to axon demyelination. Remyelination occurs when the CNS attempts to recover from myelin loss and requires the activation of oligodendrocyte precursor cells. With the rationale that CB1 receptor is expressed in oligodendrocytes and marijuana consumption alters CNS myelination, we study the effects of the cannabinoid agonist WIN55212.2 in (1) an in vitro model of oligodendrocyte differentiation and (2) the cuprizone model for demyelination. Results The synthetic cannabinoid agonist WIN55212.2 at 1 μM increased the myelin basic protein mRNA and protein expression in vitro. During cuprizone‐induced acute demyelination, the administration of 0.5 mg/kg WIN55212.2 confers more myelinated axons, increased the expression of retinoid X receptor alpha, and declined nogo receptor expression. Controversially, 1 mg/kg of the drug increased the number of demyelinated axons and reduced the expression of nerve growth factor inducible, calreticulin and myelin‐related genes coupling specifically with a decrease in 2′,3′‐cyclic nucleotide 3′ phosphodiesterase expression. Conclusion The cannabinoid agonist WIN55212.2 promotes oligodendrocyte differentiation in vitro. Moreover, 0.5 mg/kg of the drug confers neuroprotection during cuprizone‐induced demyelination, while 1 mg/kg aggravates the demyelination process.
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Affiliation(s)
- Jordi Tomas-Roig
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Göttingen, Germany.,Center Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Göttingen, Germany
| | - Oliver Wirths
- Division of Molecular Psychiatry, Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Göttingen, Germany
| | - Gabriela Salinas-Riester
- Department of Developmental Biochemistry, University Medical Center Göttingen, Göttingen, Germany
| | - Ursula Havemann-Reinecke
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Göttingen, Germany.,Center Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Göttingen, Germany
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Misunova M, Salinas-Riester G, Luthin S, Pommerenke C, Husakova M, Zavada J, Klein M, Plestilova L, Svitalkova T, Cepek P, Novota P, Vencovsky J. Microarray analysis of circulating micro RNAs in the serum of patients with polymyositis and dermatomyositis reveals a distinct disease expression profile and is associated with disease activity. Clin Exp Rheumatol 2016; 34:17-24. [PMID: 26574749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 04/17/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVES The aim of this study was a large scale investigation of myositis-associated circulating miRNA molecules and also determination of expression of these candidate molecules in relation to clinical activity of myositis. METHODS RNA, containing also miRNAs, was isolated from sera of 28 patients suffering from idiopathic inflammatory myopathies (IIM) and 16 healthy controls. Expression of miRNAs was determined using a miRNA microarray method. Statistical analysis of miRNA expression was carried out using Arraystar software. RESULTS Our results showed 23 significantly differentially expressed miRNAs. Six miRNAs were differentially expressed in IIM compared to healthy controls. In dermatomyositis (DM) we found 3 and in polymyositis (PM) 6 differentially expressed miRNAs compared to controls. Three miRNAs were up-regulated in patients with highly active disease compared to patients with low disease activity. Furthermore, we found 26 significantly differentially expressed miRNAs in SLE patients compared to IIM, DM and PM patients. CONCLUSIONS This is the first study that comprehensively describes expression levels of circulating miRNAs in serum of patients suffering from IIM. It can be expected that some of these deregulated miRNA molecules are involved in aetiology of IIM and may potentially serve as molecular markers for IIM development or for monitoring of disease activity.
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Affiliation(s)
- Martina Misunova
- Department of Experimental and Clinical Rheumatology, Institute of Rheumatology, Prague, Czech Republic.
| | - Gabriela Salinas-Riester
- Department of Developmental Biochemistry, University Medical Center Göttingen, Göttingen, Germany
| | - Susanne Luthin
- Department of Developmental Biochemistry, University Medical Center Göttingen, Göttingen, Germany
| | - Claudia Pommerenke
- Department of Developmental Biochemistry, University Medical Center Göttingen, Göttingen, Germany
| | - Marketa Husakova
- Department of Experimental and Clinical Rheumatology, Institute of Rheumatology, Prague, Czech Republic
| | - Jakub Zavada
- Department of Experimental and Clinical Rheumatology, Institute of Rheumatology, Prague, Czech Republic
| | - Martin Klein
- Department of Experimental and Clinical Rheumatology, Institute of Rheumatology, Prague, Czech Republic
| | - Lenka Plestilova
- Department of Experimental and Clinical Rheumatology, Institute of Rheumatology, Prague, Czech Republic
| | - Tana Svitalkova
- Department of Experimental and Clinical Rheumatology, Institute of Rheumatology, Prague, Czech Republic
| | - Pavel Cepek
- Department of Experimental and Clinical Rheumatology, Institute of Rheumatology, Prague, Czech Republic
| | - Peter Novota
- Department of Experimental and Clinical Rheumatology, Institute of Rheumatology, Prague, Czech Republic
| | - Jiri Vencovsky
- Department of Experimental and Clinical Rheumatology, Institute of Rheumatology, Prague, Czech Republic
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Janova H, Böttcher C, Holtman IR, Regen T, van Rossum D, Götz A, Ernst AS, Fritsche C, Gertig U, Saiepour N, Gronke K, Wrzos C, Ribes S, Rolfes S, Weinstein J, Ehrenreich H, Pukrop T, Kopatz J, Stadelmann C, Salinas-Riester G, Weber MS, Prinz M, Brück W, Eggen BJ, Boddeke HW, Priller J, Hanisch UK. CD14 is a key organizer of microglial responses to CNS infection and injury. Glia 2015; 64:635-49. [DOI: 10.1002/glia.22955] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 11/23/2015] [Indexed: 12/25/2022]
Affiliation(s)
- Hana Janova
- Institute of Neuropathology, University of Göttingen; Göttingen 37075 Germany
| | - Chotima Böttcher
- Department of Neuropsychiatry and Laboratory of Molecular Psychiatry; Charité Universitätsmedizin Berlin; Berlin 10117 Germany
| | - Inge R. Holtman
- Department of Neuroscience; Section Medical Physiology, University of Groningen, University Medical Center Groningen; Groningen 9713AW The Netherlands
| | - Tommy Regen
- Institute of Neuropathology, University of Göttingen; Göttingen 37075 Germany
- Institute of Molecular Medicine, University of Mainz; Mainz 55131 Germany
| | - Denise van Rossum
- Institute of Neuropathology, University of Göttingen; Göttingen 37075 Germany
- Sartorius-Stedim Biotech GmbH; Göttingen 37079 Germany
| | - Alexander Götz
- Institute of Neuropathology, University of Göttingen; Göttingen 37075 Germany
| | - Anne-Sophie Ernst
- Institute of Neuropathology, University of Göttingen; Göttingen 37075 Germany
| | - Christin Fritsche
- Institute of Neuropathology, University of Göttingen; Göttingen 37075 Germany
| | - Ulla Gertig
- Institute of Neuropathology, University of Göttingen; Göttingen 37075 Germany
| | - Nasrin Saiepour
- Institute of Neuropathology, University of Göttingen; Göttingen 37075 Germany
| | - Konrad Gronke
- Institute of Neuropathology, University of Göttingen; Göttingen 37075 Germany
| | - Claudia Wrzos
- Institute of Neuropathology, University of Göttingen; Göttingen 37075 Germany
| | - Sandra Ribes
- Institute of Neuropathology, University of Göttingen; Göttingen 37075 Germany
| | - Simone Rolfes
- Department of Neuropsychiatry and Laboratory of Molecular Psychiatry; Charité Universitätsmedizin Berlin; Berlin 10117 Germany
| | | | - Hannelore Ehrenreich
- Clinical Neuroscience; Max Planck Institute of Experimental Medicine; Göttingen 37075
| | - Tobias Pukrop
- Department of Oncology and Hematology; University of Göttingen; Göttingen 37075 Germany
| | - Jens Kopatz
- Department of Neural Regeneration; Institute of Reconstructive Neurobiology, University of Bonn; Bonn 53127 Germany
| | | | | | - Martin S. Weber
- Institute of Neuropathology, University of Göttingen; Göttingen 37075 Germany
| | - Marco Prinz
- Institute of Neuropathology and BIOSS Center for Biological Signaling, University of Freiburg; Freiburg 79106 Germany
| | - Wolfgang Brück
- Institute of Neuropathology, University of Göttingen; Göttingen 37075 Germany
| | - Bart J.L. Eggen
- Department of Neuroscience; Section Medical Physiology, University of Groningen, University Medical Center Groningen; Groningen 9713AW The Netherlands
| | - Hendrikus W.G.M. Boddeke
- Department of Neuroscience; Section Medical Physiology, University of Groningen, University Medical Center Groningen; Groningen 9713AW The Netherlands
| | - Josef Priller
- Department of Neuropsychiatry and Laboratory of Molecular Psychiatry; Charité Universitätsmedizin Berlin; Berlin 10117 Germany
| | - Uwe-Karsten Hanisch
- Institute of Neuropathology, University of Göttingen; Göttingen 37075 Germany
- Paul-Flechsig-Institute for Brain Research, University of Leipzig; Leipzig 04103 Germany
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Fereydouni B, Salinas-Riester G, Heistermann M, Dressel R, Lewerich L, Drummer C, Behr R. Long-Term Oocyte-Like Cell Development in Cultures Derived from Neonatal Marmoset Monkey Ovary. Stem Cells Int 2015; 2016:2480298. [PMID: 26664406 PMCID: PMC4655298 DOI: 10.1155/2016/2480298] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 07/28/2015] [Accepted: 07/28/2015] [Indexed: 11/17/2022] Open
Abstract
We use the common marmoset monkey (Callithrix jacchus) as a preclinical nonhuman primate model to study reproductive and stem cell biology. The neonatal marmoset monkey ovary contains numerous primitive premeiotic germ cells (oogonia) expressing pluripotent stem cell markers including OCT4A (POU5F1). This is a peculiarity compared to neonatal human and rodent ovaries. Here, we aimed at culturing marmoset oogonia from neonatal ovaries. We established a culture system being stable for more than 20 passages and 5 months. Importantly, comparative transcriptome analysis of the cultured cells with neonatal ovary, embryonic stem cells, and fibroblasts revealed a lack of germ cell and pluripotency genes indicating the complete loss of oogonia upon initiation of the culture. From passage 4 onwards, however, the cultured cells produced large spherical, free-floating cells resembling oocyte-like cells (OLCs). OLCs strongly expressed several germ cell genes and may derive from the ovarian surface epithelium. In summary, our novel primate ovarian cell culture initially lacked detectable germ cells but then produced OLCs over a long period of time. This culture system may allow a deeper analysis of early phases of female primate germ cell development and-after significant refinement-possibly also the production of monkey oocytes.
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Affiliation(s)
- Bentolhoda Fereydouni
- Stem Cell Biology Unit, German Primate Center-Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen, Germany
| | - Gabriela Salinas-Riester
- Microarray and Deep-Sequencing Core Facility, University Medical Center Göttingen (UMG), Justus-von-Liebig-Weg 11, 37077 Göttingen, Germany
| | - Michael Heistermann
- Endocrinology Laboratory, German Primate Center-Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen, Germany
| | - Ralf Dressel
- Department of Cellular and Molecular Immunology, University of Göttingen, Humboldtallee 34, 37073 Göttingen, Germany
| | - Lucia Lewerich
- Stem Cell Biology Unit, German Primate Center-Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen, Germany
| | - Charis Drummer
- Stem Cell Biology Unit, German Primate Center-Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen, Germany
| | - Rüdiger Behr
- Stem Cell Biology Unit, German Primate Center-Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen, Germany
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Planas R, Metz I, Ortiz Y, Vilarrasa N, Jelčić I, Salinas-Riester G, Heesen C, Brück W, Martin R, Sospedra M. Central role of Th2/Tc2 lymphocytes in pattern II multiple sclerosis lesions. Ann Clin Transl Neurol 2015; 2:875-93. [PMID: 26401510 PMCID: PMC4574806 DOI: 10.1002/acn3.218] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 03/26/2015] [Accepted: 05/05/2015] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE Multiple sclerosis (MS) is a disease of the central nervous system with marked heterogeneity in several aspects including pathological processes. Based on infiltrating immune cells, deposition of humoral factors and loss of oligodendrocytes and/or myelin proteins, four lesion patterns have been described. Pattern II is characterized by antibody and complement deposition in addition to T-cell infiltration. MS is considered a T-cell-mediated disease, but until now the study of pathogenic T cells has encountered major challenges, most importantly the limited access of brain-infiltrating T cells. Our objective was to identify, isolate, and characterize brain-infiltrating clonally expanded T cells in pattern II MS lesions. METHODS We used next-generation sequencing to identify clonally expanded T cells in demyelinating pattern II brain autopsy lesions, subsequently isolated these as T-cell clones from autologous cerebrospinal fluid and functionally characterized them. RESULTS We identified clonally expanded CD8(+) but also CD4(+) T cells in demyelinating pattern II lesions and for the first time were able to isolate these as live T-cell clones. The functional characterization shows that T cells releasing Th2 cytokines and able to provide B cell help dominate the T-cell infiltrate in pattern II brain lesions. INTERPRETATION Our data provide the first functional evidence for a putative role of Th2/Tc2 cells in pattern II MS supporting the existence of this pathogenic phenotype and questioning the protective role that is generally ascribed to Th2 cells. Our observations are important to consider for future treatments of pattern II MS patients.
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Affiliation(s)
- Raquel Planas
- Neuroimmunology and MS Research (nims), Department of Neurology, University ZurichFrauenklinikstrasse 26, 8091, Zürich, Switzerland
| | - Imke Metz
- Institute of Neuropathology, University Medical Center GöttingenGöttingen, Germany
| | - Yaneth Ortiz
- Neuroimmunology and MS Research (nims), Department of Neurology, University ZurichFrauenklinikstrasse 26, 8091, Zürich, Switzerland
| | - Nuria Vilarrasa
- Neuroimmunology and MS Research (nims), Department of Neurology, University ZurichFrauenklinikstrasse 26, 8091, Zürich, Switzerland
| | - Ilijas Jelčić
- Neuroimmunology and MS Research (nims), Department of Neurology, University ZurichFrauenklinikstrasse 26, 8091, Zürich, Switzerland
| | - Gabriela Salinas-Riester
- Department of Developmental Biochemistry, DNA Microarray and Deep-Sequencing Facility, Faculty of Medicine, University Medical Center GöttingenGöttingen, Germany
| | - Christoph Heesen
- Institute for Neuroimmunology and Clinical MS Research (inims), Center for Molecular Neurobiology (ZMNH), University Medical Center Hamburg-EppendorfFalkenried 94, 20251, Hamburg, Germany
| | - Wolfgang Brück
- Institute of Neuropathology, University Medical Center GöttingenGöttingen, Germany
| | - Roland Martin
- Neuroimmunology and MS Research (nims), Department of Neurology, University ZurichFrauenklinikstrasse 26, 8091, Zürich, Switzerland
| | - Mireia Sospedra
- Neuroimmunology and MS Research (nims), Department of Neurology, University ZurichFrauenklinikstrasse 26, 8091, Zürich, Switzerland
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Ganster C, Shirneshan K, Salinas-Riester G, Braulke F, Schanz J, Platzbecker U, Haase D. Influence of total genomic alteration and chromosomal fragmentation on response to a combination of azacitidine and lenalidomide in a cohort of patients with very high risk MDS. Leuk Res 2015; 39:1079-87. [PMID: 26278198 DOI: 10.1016/j.leukres.2015.06.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 06/16/2015] [Accepted: 06/19/2015] [Indexed: 11/16/2022]
Abstract
We genetically analyzed a group of high risk MDS/AML patients treated by a combination of azacitidine and lenalidomide. In our cohort, the extent of genetic rearrangements was associated with outcome and response to treatment. The size of total genomic aberrations as defined by molecular karyotyping (SNP-array analysis) was a predictive marker for overall survival. TP53 mutations were associated with therapy refractoriness only if accompanied by heavily rearranged chromosomes. This study suggests a potential value of molecular karyotyping as a method to objectivate comprehensively the extent of genetic alterations in high risk patients with complex karyotypes, especially if the clinical value of the size of total genomic aberrations and the fragmentation status of single chromosomes could be evaluated in larger therapy trials.
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Affiliation(s)
- Christina Ganster
- Department of Hematology and Medical Oncology, University Hospital, University Göttingen, Göttingen, Germany.
| | - Katayoon Shirneshan
- Department of Hematology and Medical Oncology, University Hospital, University Göttingen, Göttingen, Germany
| | | | - Friederike Braulke
- Department of Hematology and Medical Oncology, University Hospital, University Göttingen, Göttingen, Germany
| | - Julie Schanz
- Department of Hematology and Medical Oncology, University Hospital, University Göttingen, Göttingen, Germany
| | - Uwe Platzbecker
- Medical Clinic and Polyclinic I, University Hospital, Technical University Dresden, Dresden, Germany
| | - Detlef Haase
- Department of Hematology and Medical Oncology, University Hospital, University Göttingen, Göttingen, Germany
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Babelova A, Burckhardt BC, Salinas-Riester G, Pommerenke C, Burckhardt G, Henjakovic M. Next generation sequencing of sex-specific genes in the livers of obese ZSF1 rats. Genomics 2015. [PMID: 26200819 DOI: 10.1016/j.ygeno.2015.07.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Type 2 diabetes induces pathophysiological changes in the liver. The aim of this study was to identify differently expressed genes in the livers of male and female ZSF1 rats (ZDFxSHHF-hybrid, generation F1), a model for type 2 diabetes. Gene expression was investigated using next-generation sequencing (NGS). Selected candidate genes were verified by real-time PCR in the livers of obese and lean rats. 103 sex-different genes, associated to pathways "response to chemical stimulus", "lipid metabolism", and "response to organic substance", were identified. Male-specific genes were involved in hepatic metabolism, detoxification, and secretion, e.g. cytochrome P450 2c11 (Cyp2c11), Cyp4a2, glutathione S-transferases mu 2 (Gstm2), and Slc22a8 (organic anion transporter 3, Oat3). Most female-specific genes were associated to lipid metabolism (e.g. glycerol-3-phosphate acyltransferase 1, Gpam) or glycolysis (e.g. glucokinase, Gck). Our data suggest the necessity to pay attention to sex- and diabetes-dependent changes in pre-clinical testing of hepatic metabolized and secreted drugs.
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Affiliation(s)
- Andrea Babelova
- Cancer Research Institute, Slovak Academy of Sciences, Vlarska 7, 83391 Bratislava, Slovak Republic
| | - Birgitta C Burckhardt
- Institute for Systemic Physiology and Pathophysiology, University Medical Center Goettingen, 37073 Goettingen, Germany
| | - Gabriela Salinas-Riester
- Department of Developmental Biochemistry, DNA Microarray and Deep-Sequencing Facility, University Medical Center Goettingen, 37077 Goettingen, Germany
| | - Claudia Pommerenke
- Department of Developmental Biochemistry, DNA Microarray and Deep-Sequencing Facility, University Medical Center Goettingen, 37077 Goettingen, Germany
| | - Gerhard Burckhardt
- Institute for Systemic Physiology and Pathophysiology, University Medical Center Goettingen, 37073 Goettingen, Germany
| | - Maja Henjakovic
- Institute for Systemic Physiology and Pathophysiology, University Medical Center Goettingen, 37073 Goettingen, Germany.
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Liefke R, Windhof-Jaidhauser IM, Gaedcke J, Salinas-Riester G, Wu F, Ghadimi M, Dango S. The oxidative demethylase ALKBH3 marks hyperactive gene promoters in human cancer cells. Genome Med 2015. [PMID: 26221185 PMCID: PMC4517488 DOI: 10.1186/s13073-015-0180-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background The oxidative DNA demethylase ALKBH3 targets single-stranded DNA (ssDNA) in order to perform DNA alkylation damage repair. ALKBH3 becomes upregulated during tumorigenesis and is necessary for proliferation. However, the underlying molecular mechanism remains to be understood. Methods To further elucidate the function of ALKBH3 in cancer, we performed ChIP-seq to investigate the genomic binding pattern of endogenous ALKBH3 in PC3 prostate cancer cells coupled with microarray experiments to examine the expression effects of ALKBH3 depletion. Results We demonstrate that ALKBH3 binds to transcription associated locations, such as places of promoter-proximal paused RNA polymerase II and enhancers. Strikingly, ALKBH3 strongly binds to the transcription initiation sites of a small number of highly active gene promoters. These promoters are characterized by high levels of transcriptional regulators, including transcription factors, the Mediator complex, cohesin, histone modifiers, and active histone marks. Gene expression analysis showed that ALKBH3 does not directly influence the transcription of its target genes, but its depletion induces an upregulation of ALKBH3 non-bound inflammatory genes. Conclusions The genomic binding pattern of ALKBH3 revealed a putative novel hyperactive promoter type. Further, we propose that ALKBH3 is an intrinsic DNA repair protein that suppresses transcription associated DNA damage at highly expressed genes and thereby plays a role to maintain genomic integrity in ALKBH3-overexpressing cancer cells. These results raise the possibility that ALKBH3 may be a potential target for inhibiting cancer progression. Electronic supplementary material The online version of this article (doi:10.1186/s13073-015-0180-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Robert Liefke
- Division of Newborn Medicine and Program in Epigenetics, Department of Medicine, Boston Children's Hospital, Boston, MA 02115 USA ; Department of Cell Biology, Harvard Medical School, Boston, MA 02115 USA
| | | | - Jochen Gaedcke
- University Medical Center, Department of General-, and Visceral Surgery, D-37075 Göttingen, Germany
| | | | - Feizhen Wu
- Epigenetics Laboratory, Institute of Biomedical Sciences, Fudan University, Shanghai, 200032 China
| | - Michael Ghadimi
- University Medical Center, Department of General-, and Visceral Surgery, D-37075 Göttingen, Germany
| | - Sebastian Dango
- University Medical Center, Department of General-, and Visceral Surgery, D-37075 Göttingen, Germany ; Division of Newborn Medicine and Program in Epigenetics, Department of Medicine, Boston Children's Hospital, Boston, MA 02115 USA ; Department of Cell Biology, Harvard Medical School, Boston, MA 02115 USA
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Debowski K, Warthemann R, Lentes J, Salinas-Riester G, Dressel R, Langenstroth D, Gromoll J, Sasaki E, Behr R. Non-viral generation of marmoset monkey iPS cells by a six-factor-in-one-vector approach. PLoS One 2015; 10:e0118424. [PMID: 25785453 PMCID: PMC4365012 DOI: 10.1371/journal.pone.0118424] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 12/01/2014] [Indexed: 02/07/2023] Open
Abstract
Groundbreaking studies showed that differentiated somatic cells of mouse and human origin could be reverted to a stable pluripotent state by the ectopic expression of only four proteins. The resulting pluripotent cells, called induced pluripotent stem (iPS) cells, could be an alternative to embryonic stem cells, which are under continuous ethical debate. Hence, iPS cell-derived functional cells such as neurons may become the key for an effective treatment of currently incurable degenerative diseases. However, besides the requirement of efficacy testing of the therapy also its long-term safety needs to be carefully evaluated in settings mirroring the clinical situation in an optimal way. In this context, we chose the long-lived common marmoset monkey (Callithrix jacchus) as a non-human primate species to generate iPS cells. The marmoset monkey is frequently used in biomedical research and is gaining more and more preclinical relevance due to the increasing number of disease models. Here, we describe, to our knowledge, the first-time generation of marmoset monkey iPS cells from postnatal skin fibroblasts by non-viral means. We used the transposon-based, fully reversible piggyback system. We cloned the marmoset monkey reprogramming factors and established robust and reproducible reprogramming protocols with a six-factor-in-one-construct approach. We generated six individual iPS cell lines and characterized them in comparison with marmoset monkey embryonic stem cells. The generated iPS cells are morphologically indistinguishable from marmoset ES cells. The iPS cells are fully reprogrammed as demonstrated by differentiation assays, pluripotency marker expression and transcriptome analysis. They are stable for numerous passages (more than 80) and exhibit euploidy. In summary, we have established efficient non-viral reprogramming protocols for the derivation of stable marmoset monkey iPS cells, which can be used to develop and test cell replacement therapies in preclinical settings.
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Affiliation(s)
- Katharina Debowski
- Stem Cell Biology Unit, German Primate Center—Leibniz Institute for Primate Research, Göttingen, Germany
- * E-mail: (KD); (RB)
| | - Rita Warthemann
- Stem Cell Biology Unit, German Primate Center—Leibniz Institute for Primate Research, Göttingen, Germany
| | - Jana Lentes
- Stem Cell Biology Unit, German Primate Center—Leibniz Institute for Primate Research, Göttingen, Germany
| | - Gabriela Salinas-Riester
- Microarray and Deep-Sequencing Core Facility, University Medical Center Göttingen (UMG), Göttingen, Germany
| | - Ralf Dressel
- Department of Cellular and Molecular Immunology, University of Göttingen, Göttingen, Germany
| | - Daniel Langenstroth
- Centre of Reproductive Medicine and Andrology, University of Münster, Münster, Germany
| | - Jörg Gromoll
- Centre of Reproductive Medicine and Andrology, University of Münster, Münster, Germany
| | - Erika Sasaki
- Department of Applied Developmental Biology, Central Institute for Experimental Animals, Kawasaki-ku, Kawasaki, Kanagawa, Japan, Keio Advanced Research Center, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Rüdiger Behr
- Stem Cell Biology Unit, German Primate Center—Leibniz Institute for Primate Research, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
- * E-mail: (KD); (RB)
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26
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Avenhaus U, Cabeza RA, Liese R, Lingner A, Dittert K, Salinas-Riester G, Pommerenke C, Schulze J. Short-Term Molecular Acclimation Processes of Legume Nodules to Increased External Oxygen Concentration. Front Plant Sci 2015; 6:1133. [PMID: 26779207 PMCID: PMC4702478 DOI: 10.3389/fpls.2015.01133] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 11/30/2015] [Indexed: 05/19/2023]
Abstract
Nitrogenase is an oxygen labile enzyme. Microaerobic conditions within the infected zone of nodules are maintained primarily by an oxygen diffusion barrier (ODB) located in the nodule cortex. Flexibility of the ODB is important for the acclimation processes of nodules in response to changes in external oxygen concentration. The hypothesis of the present study was that there are additional molecular mechanisms involved. Nodule activity of Medicago truncatula plants were continuously monitored during a change from 21 to 25 or 30% oxygen around root nodules by measuring nodule H2 evolution. Within about 2 min of the increase in oxygen concentration, a steep decline in nitrogenase activity occurred. A quick recovery commenced about 8 min later. A qPCR-based analysis of the expression of genes for nitrogenase components showed a tendency toward upregulation during the recovery. The recovery resulted in a new constant activity after about 30 min, corresponding to approximately 90% of the pre-treatment level. An RNAseq-based comparative transcriptome profiling of nodules at that point in time revealed that genes for nodule-specific cysteine-rich (NCR) peptides, defensins, leghaemoglobin and chalcone and stilbene synthase were significantly upregulated when considered as a gene family. A gene for a nicotianamine synthase-like protein (Medtr1g084050) showed a strong increase in count number. The gene appears to be of importance for nodule functioning, as evidenced by its consistently high expression in nodules and a strong reaction to various environmental cues that influence nodule activity. A Tnt1-mutant that carries an insert in the coding sequence (cds) of that gene showed reduced nitrogen fixation and less efficient acclimation to an increased external oxygen concentration. It was concluded that sudden increases in oxygen concentration around nodules destroy nitrogenase, which is quickly counteracted by an increased neoformation of the enzyme. This reaction might be induced by increased formation of NCR peptides and necessitates an efficient iron supply to the bacteroid, which is probably mediated by nicotianamine. The paper is dedicated to the 85th birthday of Prof. Dr. Günther Schilling, University of Halle/Wittenberg, Germany, https://de.wikipedia.org/wiki/Günther_Schilling.
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Affiliation(s)
- Ulrike Avenhaus
- Department of Crop Science, Section for Plant Nutrition and Crop Physiology, Faculty of Agriculture, University of GoettingenGoettingen, Germany
| | - Ricardo A. Cabeza
- Department of Crop Science, Section for Plant Nutrition and Crop Physiology, Faculty of Agriculture, University of GoettingenGoettingen, Germany
- Departamento de Ingeniería y Suelos, Facultad de Ciencias Agronómicas, Universidad de ChileLa Pintana, Chile
| | - Rebecca Liese
- Department of Crop Science, Section for Plant Nutrition and Crop Physiology, Faculty of Agriculture, University of GoettingenGoettingen, Germany
| | - Annika Lingner
- Department of Crop Science, Section for Plant Nutrition and Crop Physiology, Faculty of Agriculture, University of GoettingenGoettingen, Germany
| | - Klaus Dittert
- Department of Crop Science, Section for Plant Nutrition and Crop Physiology, Faculty of Agriculture, University of GoettingenGoettingen, Germany
| | - Gabriela Salinas-Riester
- Department of Developmental Biochemistry, DNA Microarray and Deep-Sequencing Facility, Faculty of Medicine, University of GoettingenGoettingen, Germany
| | - Claudia Pommerenke
- Department of Developmental Biochemistry, DNA Microarray and Deep-Sequencing Facility, Faculty of Medicine, University of GoettingenGoettingen, Germany
| | - Joachim Schulze
- Department of Crop Science, Section for Plant Nutrition and Crop Physiology, Faculty of Agriculture, University of GoettingenGoettingen, Germany
- *Correspondence: Joachim Schulze,
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27
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Cabeza RA, Liese R, Lingner A, von Stieglitz I, Neumann J, Salinas-Riester G, Pommerenke C, Dittert K, Schulze J. RNA-seq transcriptome profiling reveals that Medicago truncatula nodules acclimate N₂ fixation before emerging P deficiency reaches the nodules. J Exp Bot 2014; 65:6035-48. [PMID: 25151618 PMCID: PMC4203135 DOI: 10.1093/jxb/eru341] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Legume nodules are plant tissues with an exceptionally high concentration of phosphorus (P), which, when there is scarcity of P, is preferentially maintained there rather than being allocated to other plant organs. The hypothesis of this study was that nodules are affected before the P concentration in the organ declines during whole-plant P depletion. Nitrogen (N₂) fixation and P concentration in various organs were monitored during a whole-plant P-depletion process in Medicago truncatula. Nodule gene expression was profiled through RNA-seq at day 5 of P depletion. Until that point in time P concentration in leaves reached a lower threshold but was maintained in nodules. N₂-fixation activity per plant diverged from that of fully nourished plants beginning at day 5 of the P-depletion process, primarily because fewer nodules were being formed, while the activity of the existing nodules was maintained for as long as two weeks into P depletion. RNA-seq revealed nodule acclimation on a molecular level with a total of 1140 differentially expressed genes. Numerous genes for P remobilization from organic structures were increasingly expressed. Various genes involved in nodule malate formation were upregulated, while genes involved in fermentation were downregulated. The fact that nodule formation was strongly repressed with the onset of P deficiency is reflected in the differential expression of various genes involved in nodulation. It is concluded that plants follow a strategy to maintain N₂ fixation and viable leaf tissue as long as possible during whole-plant P depletion to maintain their ability to react to emerging new P sources (e.g. through active P acquisition by roots).
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Affiliation(s)
- Ricardo A Cabeza
- Department of Crop Science, Section for Plant Nutrition and Crop Physiology, Faculty of Agriculture, University of Goettingen, Carl-Sprengel-Weg 1, 37075 Goettingen, Germany
| | - Rebecca Liese
- Department of Crop Science, Section for Plant Nutrition and Crop Physiology, Faculty of Agriculture, University of Goettingen, Carl-Sprengel-Weg 1, 37075 Goettingen, Germany
| | - Annika Lingner
- Department of Crop Science, Section for Plant Nutrition and Crop Physiology, Faculty of Agriculture, University of Goettingen, Carl-Sprengel-Weg 1, 37075 Goettingen, Germany
| | - Ilsabe von Stieglitz
- Department of Crop Science, Section for Plant Nutrition and Crop Physiology, Faculty of Agriculture, University of Goettingen, Carl-Sprengel-Weg 1, 37075 Goettingen, Germany
| | - Janice Neumann
- Department of Crop Science, Section for Plant Nutrition and Crop Physiology, Faculty of Agriculture, University of Goettingen, Carl-Sprengel-Weg 1, 37075 Goettingen, Germany
| | - Gabriela Salinas-Riester
- Department of Developmental Biochemistry, DNA Microarray and Deep-Sequencing Facility, Faculty of Medicine, University of Goettingen, Justus-von-Liebig-Weg 11, 37077 Goettingen, Germany
| | - Claudia Pommerenke
- Department of Developmental Biochemistry, DNA Microarray and Deep-Sequencing Facility, Faculty of Medicine, University of Goettingen, Justus-von-Liebig-Weg 11, 37077 Goettingen, Germany
| | - Klaus Dittert
- Department of Crop Science, Section for Plant Nutrition and Crop Physiology, Faculty of Agriculture, University of Goettingen, Carl-Sprengel-Weg 1, 37075 Goettingen, Germany
| | - Joachim Schulze
- Department of Crop Science, Section for Plant Nutrition and Crop Physiology, Faculty of Agriculture, University of Goettingen, Carl-Sprengel-Weg 1, 37075 Goettingen, Germany
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Bleckmann A, Leha A, Artmann S, Menck K, Salinas-Riester G, Binder C, Pukrop T, Beissbarth T, Klemm F. Integrated miRNA and mRNA profiling of tumor-educated macrophages identifies prognostic subgroups in estrogen receptor-positive breast cancer. Mol Oncol 2014; 9:155-66. [PMID: 25205039 PMCID: PMC5528681 DOI: 10.1016/j.molonc.2014.07.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 06/27/2014] [Accepted: 07/29/2014] [Indexed: 12/21/2022] Open
Abstract
Introduction Various studies have identified aberrantly expressed miRNAs in breast cancer and demonstrated an association between distinct miRNAs and malignant progression as well as metastasis. Even though tumor‐associated macrophages (TAM) are known mediators of these processes, little is known regarding their miRNA expression upon education by malignant cells in vivo. Methods We profiled miRNA and mRNA expression of in vitro tumor‐educated macrophages (TEM) by indirectly co‐culturing with estrogen‐receptor‐positive (ER+) MCF‐7 breast cancer cells. The prognostic power of the resulting miRNA list was investigated in primary breast cancer datasets and compared to other signatures. Furthermore, miRNA expression levels were correlated to mRNA expression of macrophage markers and the impact on prognosis was assessed. Results Through the evaluation of the group effects between differentially‐expressed miRNAs and their target mRNAs in TEM, the power of detecting regulated miRNAs was greatly increased. The resulting list of 96 miRNAs predicts disease‐free survival (DFS) in external datasets of ER+ breast cancer patients and performs well in comparison with other miRNA signatures. Clustering with the predefined miRNA list revealed a significant difference in survival between the two resulting patient groups. Furthermore, an optimized miRNA list, based on correlations with macrophages markers, proved even more capable at identifying patient clusters significantly differing in DFS. Conclusions In vitro profiling of TEM and subsequent bioinformatic verification identified miRNAs with a high prognostic power for DFS when transferred into the clinical setting of primary breast cancer. The resulting miRNAs not only verify previously established findings but also lead to new prognostic markers. Furthermore, our data suggest that TAM contribute to the total miRNA expression profile of ER + breast cancers. miRNA and mRNA were measured in macrophages exposed to ER + breast cancer cells. Regulated miRNAs were detected by analyzing group effects of mRNA targets. The resulting miRNA list has good prognostic value for DFS in ER + breast cancer. Correlation of miRNAs to macrophage markers improved identification of clusters differing in DFS.
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Affiliation(s)
- Annalen Bleckmann
- Dept. of Hematology/Oncology, University Medical Center Göttingen, 37099 Göttingen, Germany; Dept. of Medical Statistics, University Medical Center Göttingen, 37099 Göttingen, Germany.
| | - Andreas Leha
- Dept. of Medical Statistics, University Medical Center Göttingen, 37099 Göttingen, Germany.
| | - Stephan Artmann
- Dept. of Medical Statistics, University Medical Center Göttingen, 37099 Göttingen, Germany.
| | - Kerstin Menck
- Dept. of Hematology/Oncology, University Medical Center Göttingen, 37099 Göttingen, Germany.
| | - Gabriela Salinas-Riester
- Dept. of Developmental Biochemistry, University Medical Center Göttingen, 37099 Göttingen, Germany.
| | - Claudia Binder
- Dept. of Hematology/Oncology, University Medical Center Göttingen, 37099 Göttingen, Germany.
| | - Tobias Pukrop
- Dept. of Hematology/Oncology, University Medical Center Göttingen, 37099 Göttingen, Germany.
| | - Tim Beissbarth
- Dept. of Medical Statistics, University Medical Center Göttingen, 37099 Göttingen, Germany.
| | - Florian Klemm
- Dept. of Hematology/Oncology, University Medical Center Göttingen, 37099 Göttingen, Germany.
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Barbisin M, Vanni S, Schmädicke AC, Montag J, Motzkus D, Opitz L, Salinas-Riester G, Legname G. Gene expression profiling of brains from bovine spongiform encephalopathy (BSE)-infected cynomolgus macaques. BMC Genomics 2014; 15:434. [PMID: 24898206 PMCID: PMC4061447 DOI: 10.1186/1471-2164-15-434] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 05/07/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Prion diseases are fatal neurodegenerative disorders whose pathogenesis mechanisms are not fully understood. In this context, the analysis of gene expression alterations occurring in prion-infected animals represents a powerful tool that may contribute to unravel the molecular basis of prion diseases and therefore discover novel potential targets for diagnosis and therapeutics. Here we present the first large-scale transcriptional profiling of brains from BSE-infected cynomolgus macaques, which are an excellent model for human prion disorders. RESULTS The study was conducted using the GeneChip® Rhesus Macaque Genome Array and revealed 300 transcripts with expression changes greater than twofold. Among these, the bioinformatics analysis identified 86 genes with known functions, most of which are involved in cellular development, cell death and survival, lipid homeostasis, and acute phase response signaling. RT-qPCR was performed on selected gene transcripts in order to validate the differential expression in infected animals versus controls. The results obtained with the microarray technology were confirmed and a gene signature was identified. In brief, HBB and HBA2 were down-regulated in infected macaques, whereas TTR, APOC1 and SERPINA3 were up-regulated. CONCLUSIONS Some genes involved in oxygen or lipid transport and in innate immunity were found to be dysregulated in prion infected macaques. These genes are known to be involved in other neurodegenerative disorders such as Alzheimer's and Parkinson's diseases. Our results may facilitate the identification of potential disease biomarkers for many neurodegenerative diseases.
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Affiliation(s)
| | | | | | | | | | | | | | - Giuseppe Legname
- Department of Neuroscience, Scuola Internazionale Superiore di Studi Avanzati (SISSA), Via Bonomea 265, 34136 Trieste, Italy.
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30
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Kolodziej S, Kuvardina ON, Oellerich T, Herglotz J, Backert I, Kohrs N, Buscató EL, Wittmann SK, Salinas-Riester G, Bonig H, Karas M, Serve H, Proschak E, Lausen J. PADI4 acts as a coactivator of Tal1 by counteracting repressive histone arginine methylation. Nat Commun 2014; 5:3995. [PMID: 24874575 PMCID: PMC4050257 DOI: 10.1038/ncomms4995] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 04/28/2014] [Indexed: 01/26/2023] Open
Abstract
The transcription factor Tal1 is a
critical activator or repressor of gene expression in hematopoiesis and leukaemia.
The mechanism by which Tal1
differentially influences transcription of distinct genes is not fully understood.
Here we show that Tal1 interacts
with the peptidylarginine deiminase
IV (PADI4). We
demonstrate that PADI4 can act as
an epigenetic coactivator through influencing H3R2me2a. At the Tal1/PADI4 target gene IL6ST the repressive H3R2me2a mark triggered by
PRMT6 is counteracted by
PADI4, which augments the
active H3K4me3 mark and thus increases IL6ST expression. In contrast, at the CTCF promoter PADI4 acts as a repressor. We propose that
the influence of PADI4 on
IL6ST transcription
plays a role in the control of IL6ST expression during lineage differentiation of
hematopoietic stem/progenitor cells. These results open the possibility to
pharmacologically influence Tal1
in leukaemia. Peptidylarginine deiminase 4 (PADI4) is a transcriptional
co-regulator that converts arginine residues at histone tails to citrulline. The authors
show that PADI4 interacts with the central haematopoietic transcription factor TAL1 to
regulate gene expression in an erythroleukemia cell line.
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Affiliation(s)
- Stephan Kolodziej
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Paul-Ehrlich-Strasse 42-44, D-60596 Frankfurt am Main, Germany
| | - Olga N Kuvardina
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Paul-Ehrlich-Strasse 42-44, D-60596 Frankfurt am Main, Germany
| | - Thomas Oellerich
- Department of Medicine, Hematology/Oncology, Johann-Wolfgang-Goethe University, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany
| | - Julia Herglotz
- 1] Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Paul-Ehrlich-Strasse 42-44, D-60596 Frankfurt am Main, Germany [2]
| | - Ingo Backert
- 1] Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Paul-Ehrlich-Strasse 42-44, D-60596 Frankfurt am Main, Germany [2]
| | - Nicole Kohrs
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Paul-Ehrlich-Strasse 42-44, D-60596 Frankfurt am Main, Germany
| | - Estel la Buscató
- Institute of Pharmaceutical Chemistry, Johann-Wolfgang-Goethe University, Max-von-Laue-Strasse 9, D-60438 Frankfurt am Main, Germany
| | - Sandra K Wittmann
- Institute of Pharmaceutical Chemistry, Johann-Wolfgang-Goethe University, Max-von-Laue-Strasse 9, D-60438 Frankfurt am Main, Germany
| | - Gabriela Salinas-Riester
- Medical-University Goettingen, Transcriptome Analysis Laboratory, Justus-von-Liebig-Weg 11, D-37077 Goettingen, Germany
| | - Halvard Bonig
- German Red Cross Blood Service and Institute for Transfusion Medicine and Immunohematology, Johann-Wolfgang-Goethe University, Sandhofstrasse 1, D-60528 Frankfurt am Main, Germany
| | - Michael Karas
- Institute of Pharmaceutical Chemistry, Johann-Wolfgang-Goethe University, Max-von-Laue-Strasse 9, D-60438 Frankfurt am Main, Germany
| | - Hubert Serve
- 1] Department of Medicine, Hematology/Oncology, Johann-Wolfgang-Goethe University, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany [2] German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Ewgenij Proschak
- 1] Institute of Pharmaceutical Chemistry, Johann-Wolfgang-Goethe University, Max-von-Laue-Strasse 9, D-60438 Frankfurt am Main, Germany [2] German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Jörn Lausen
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Paul-Ehrlich-Strasse 42-44, D-60596 Frankfurt am Main, Germany
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Menke J, Pauli S, Sigler M, Kühnle I, Shoukier M, Zoll B, Ganster C, Salinas-Riester G, Schaefer IM. Uniparental Trisomy of a Mutated HRAS Proto-Oncogene in Embryonal Rhabdomyosarcoma of a Patient With Costello Syndrome. J Clin Oncol 2014; 33:e62-5. [PMID: 24637993 DOI: 10.1200/jco.2013.49.6539] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Jan Menke
- University Medical Center Goettingen, Goettingen, Germany
| | - Silke Pauli
- University Medical Center Goettingen, Goettingen, Germany
| | | | - Ingrid Kühnle
- University Medical Center Goettingen, Goettingen, Germany
| | | | - Barbara Zoll
- University Medical Center Goettingen, Goettingen, Germany
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Cabeza R, Koester B, Liese R, Lingner A, Baumgarten V, Dirks J, Salinas-Riester G, Pommerenke C, Dittert K, Schulze J. An RNA sequencing transcriptome analysis reveals novel insights into molecular aspects of the nitrate impact on the nodule activity of Medicago truncatula. Plant Physiol 2014; 164:400-11. [PMID: 24285852 PMCID: PMC3875817 DOI: 10.1104/pp.113.228312] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 11/26/2013] [Indexed: 05/18/2023]
Abstract
The mechanism through which nitrate reduces the activity of legume nodules is controversial. The objective of the study was to follow Medicago truncatula nodule activity after nitrate provision continuously and to identify molecular mechanisms, which down-regulate the activity of the nodules. Nodule H2 evolution started to decline after about 4 h of nitrate application. At that point in time, a strong shift in nodule gene expression (RNA sequencing) had occurred (1,120 differentially expressed genes). The most pronounced effect was the down-regulation of 127 genes for nodule-specific cysteine-rich peptides. Various other nodulins were also strongly down-regulated, in particular all the genes for leghemoglobins. In addition, shifts in the expression of genes involved in cellular iron allocation and mitochondrial ATP synthesis were observed. Furthermore, the expression of numerous genes for the formation of proteins and glycoproteins with no obvious function in nodules (e.g. germins, patatin, and thaumatin) was strongly increased. This occurred in conjunction with an up-regulation of genes for proteinase inhibitors, in particular those containing the Kunitz domain. The additionally formed proteins might possibly be involved in reducing nodule oxygen permeability. Between 4 and 28 h of nitrate exposure, a further reduction in nodule activity occurred, and the number of differentially expressed genes almost tripled. In particular, there was a differential expression of genes connected with emerging senescence. It is concluded that nitrate exerts rapid and manifold effects on nitrogenase activity. A certain degree of nitrate tolerance might be achieved when the down-regulatory effect on late nodulins can be alleviated.
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Witt D, Burfeind P, von Hardenberg S, Opitz L, Salinas-Riester G, Bremmer F, Schweyer S, Thelen P, Neesen J, Kaulfuss S. Valproic acid inhibits the proliferation of cancer cells by re-expressing cyclin D2. Carcinogenesis 2013; 34:1115-24. [PMID: 23349020 DOI: 10.1093/carcin/bgt019] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In this study, primary murine prostate cancer (PCa) cells were derived using the well-established TRAMP model. These PCa cells were treated with the histone deacetylase inhibitor, valproic acid (VPA), and we demonstrated that VPA treatment has an antimigrative, antiinvasive and antiproliferative effect on PCa cells. Using microarray analyses, we discovered several candidate genes that could contribute to the cellular effects we observed. In this study, we could demonstrate that VPA treatment of PCa cells causes the re-expression of cyclin D2, a known regulator that is frequently lost in PCa as we could show using immunohistochemical analyses on PCa specimens. We demonstrate that VPA specifically induces the re-expression of cyclin D2, one of the highly conserved D-type cyclin family members, in several cancer cell lines with weak or no cyclin D2 expression. Interestingly, VPA treatment had no effect in fibroblasts, which typically have high basal levels of cyclin D2 expression. The re-expression of cyclin D2 observed in PCa cells is activated by increased histone acetylation in the promoter region of the Ccnd2 gene and represents one underlying molecular mechanism of VPA treatment that inhibits the proliferation of cancer cells. Altogether, our results confirm that VPA is an anticancer therapeutic drug for the treatment of tumors with epigenetically repressed cyclin D2 expression.
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Affiliation(s)
- Daria Witt
- Institute of Human Genetics, University Medical Center Göttingen, 37073 Göttingen, Germany
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Studencka M, Wesołowski R, Opitz L, Salinas-Riester G, Wisniewski JR, Jedrusik-Bode M. Transcriptional repression of Hox genes by C. elegans HP1/HPL and H1/HIS-24. PLoS Genet 2012; 8:e1002940. [PMID: 23028351 PMCID: PMC3441639 DOI: 10.1371/journal.pgen.1002940] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Accepted: 07/21/2012] [Indexed: 11/19/2022] Open
Abstract
Elucidation of the biological role of linker histone (H1) and heterochromatin protein 1 (HP1) in mammals has been difficult owing to the existence of a least 11 distinct H1 and three HP1 subtypes in mice. Caenorhabditis elegans possesses two HP1 homologues (HPL-1 and HPL-2) and eight H1 variants. Remarkably, one of eight H1 variants, HIS-24, is important for C. elegans development. Therefore we decided to analyse in parallel the transcriptional profiles of HIS-24, HPL-1/-2 deficient animals, and their phenotype, since hpl-1, hpl-2, and his-24 deficient nematodes are viable. Global transcriptional analysis of the double and triple mutants revealed that HPL proteins and HIS-24 play gene-specific roles, rather than a general repressive function. We showed that HIS-24 acts synergistically with HPL to allow normal reproduction, somatic gonad development, and vulval cell fate decision. Furthermore, the hpl-2; his-24 double mutant animals displayed abnormal development of the male tail and ectopic expression of C. elegans HOM-C/Hox genes (egl-5 and mab-5), which are involved in the developmental patterning of male mating structures. We found that HPL-2 and the methylated form of HIS-24 specifically interact with the histone H3 K27 region in the trimethylated state, and HIS-24 associates with the egl-5 and mab-5 genes. Our results establish the interplay between HPL-1/-2 and HIS-24 proteins in the regulation of positional identity in C. elegans males. Linker histone (H1) and heterochromatin protein 1 (HP1) play central roles in the formation of higher-order chromatin structure and gene expression. Recent studies have shown a physical interaction between H1 and HP1; however, the biological role of histone H1 and HP1 is not well understood. Additionally, the function of HP1 and H1 isoform interactions in any organism has not been addressed, mostly due to the lack of knockout alleles. Here, we investigate the role of HP1 and H1 in development using the nematode C. elegans as a model system. We focus on the underlying molecular mechanisms of gene co-regulation by H1 and HP1. We show that the loss of both HP1 and H1 alters the expression of a small subset of genes. C. elegans HP1 and H1 have an overlapping function in the same or parallel pathways where they regulate a shared target, the Hox genes.
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Affiliation(s)
- Maja Studencka
- Department of Genes and Behavior, Epigenetics in C. elegans Group, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany
| | - Radosław Wesołowski
- Department of Genes and Behavior, Epigenetics in C. elegans Group, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany
| | - Lennart Opitz
- DNA Microarray Facility, Georg-August University, Göttingen, Germany
| | | | - Jacek R. Wisniewski
- Department of Proteomics and Signal Transduction, Max Planck Institute for Biochemistry, Martinsried, Germany
| | - Monika Jedrusik-Bode
- Department of Genes and Behavior, Epigenetics in C. elegans Group, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany
- * E-mail:
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Grosser E, Hirt U, Janc OA, Menzfeld C, Fischer M, Kempkes B, Vogelgesang S, Manzke TU, Opitz L, Salinas-Riester G, Müller M. Oxidative burden and mitochondrial dysfunction in a mouse model of Rett syndrome. Neurobiol Dis 2012; 48:102-14. [PMID: 22750529 DOI: 10.1016/j.nbd.2012.06.007] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Revised: 05/22/2012] [Accepted: 06/22/2012] [Indexed: 10/28/2022] Open
Abstract
Rett syndrome is an X chromosome-linked neurodevelopmental disorder associated with cognitive impairment, motor dysfunction and breathing irregularities causing intermittent hypoxia. Evidence for impaired mitochondrial function is also accumulating. A subunit of complex III is among the potentially dys-regulated genes, the inner mitochondrial membrane is leaking protons, brain ATP levels seem reduced, and Rett patient blood samples confirm increased oxidative damage. We therefore screened for mitochondrial dysfunction and impaired redox balance. In hippocampal slices of a Rett mouse model (Mecp2(-/y)) we detected an increased FAD/NADH baseline-ratio indicating intensified oxidization. Cyanide-induced anoxia caused similar decreases in FAD/NADH ratio and mitochondrial membrane potential in both genotypes, but Mecp2(-/y) mitochondria seemed less polarized. Quantifying cytosolic redox balance with the genetically-encoded optical probe roGFP1 confirmed more oxidized baseline conditions, a more vulnerable redox-balance, and more intense responses of Mecp2(-/y) hippocampus to oxidative challenge and mitochondrial impairment. Trolox treatment improved the redox baseline of Mecp2(-/y) hippocampus and dampened its exaggerated responses to oxidative challenge. Microarray analysis of the hippocampal CA1 subfield did not detect alterations of key mitochondrial enzymes or scavenging systems. Yet, quantitative PCR confirmed a moderate upregulation of superoxide dismutase 1 in Mecp2(-/y) hippocampus, which might be a compensatory response to the increased oxidative burden. Since several receptors and ion-channels are redox-modulated, the mitochondrial and redox changes which already manifest in neonates could contribute to the hyperexcitability and diminished synaptic plasticity in MeCP2 deficiency. Therefore, targeting cellular redox balance might qualify as a potential pharmacotherapeutic approach to improve neuronal network function in Rett syndrome.
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Affiliation(s)
- Emanuel Grosser
- DFG Research Center Molecular Physiology of the Brain (CMPB), Zentrum für Physiologie und Pathophysiologie, Abteilung Neuro- und Sinnesphysiologie, Georg-August-Universität Göttingen, Universitätsmedizin, Humboldtallee 23, D-37073 Göttingen, Germany
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Fromm-Dornieden C, von der Heyde S, Lytovchenko O, Salinas-Riester G, Brenig B, Beissbarth T, Baumgartner BG. Novel polysome messages and changes in translational activity appear after induction of adipogenesis in 3T3-L1 cells. BMC Mol Biol 2012; 13:9. [PMID: 22436005 PMCID: PMC3347988 DOI: 10.1186/1471-2199-13-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Accepted: 03/21/2012] [Indexed: 01/06/2023] Open
Abstract
Background Control of translation allows for rapid adaptation of the cell to stimuli, rather than the slower transcriptional control. We presume that translational control is an essential process in the control of adipogenesis, especially in the first hours after hormonal stimulation. 3T3-L1 preadipocytes were cultured to confluency and adipogenesis was induced by standard protocols using a hormonal cocktail. Cells were harvested before and 6 hours after hormonal induction. mRNAs attached to ribosomes (polysomal mRNAs) were separated from unbound mRNAs by velocity sedimentation. Pools of polysomal and unbound mRNA fractions were analyzed by microarray analysis. Changes in relative abundance in unbound and polysomal mRNA pools were calculated to detect putative changes in translational activity. Changes of expression levels of selected genes were verified by qPCR and Western blotting. Results We identified 43 genes that shifted towards the polysomal fraction (up-regulated) and 2 genes that shifted towards free mRNA fraction (down-regulated). Interestingly, we found Ghrelin to be down-regulated. Up-regulated genes comprise factors that are nucleic acid binding (eIF4B, HSF1, IRF6, MYC, POLR2a, RPL18, RPL27a, RPL6, RPL7a, RPS18, RPSa, TSC22d3), form part of ribosomes (RPL18, RPL27a, RPL6, RPL7a, RPS18, RPSa), act on the regulation of translation (eIF4B) or transcription (HSF1, IRF6, MYC, TSC22d3). Others act as chaperones (BAG3, HSPA8, HSP90ab1) or in other metabolic or signals transducing processes. Conclusions We conclude that a moderate reorganisation of the functionality of the ribosomal machinery and translational activity are very important steps for growth and gene expression control in the initial phase of adipogenesis.
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Lutterotti A, Jelčić I, Schulze C, Schippling S, Breiden P, Mazzanti B, Reinhardt S, DiGioia M, Repice A, Massacesi L, Sputtek A, Salinas-Riester G, Kroeger N, Sospedra M, Saccardi R, Zander A, Martin R. No proinflammatory signature in CD34+ hematopoietic progenitor cells in multiple sclerosis patients. Mult Scler 2012; 18:1188-92. [DOI: 10.1177/1352458511434067] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Autologous hematopoietic stem cell transplantation (aHSCT) has been used as a therapeutic approach in multiple sclerosis (MS). However, it is still unclear if the immune system that emerges from autologous CD34+ hematopoietic progenitor cells (HPC) of MS patients is pre-conditioned to re-develop the proinflammatory phenotype. The objective of this article is to compare the whole genome gene and microRNA expression signature in CD34+ HPC of MS patients and healthy donors (HD). CD34+ HPC were isolated from peripheral blood of eight MS patients and five HD and analyzed by whole genome gene expression and microRNA expression microarray. Among the differentially expressed genes (DEGs) only TNNT1 reached statistical significance (logFC=3.1, p<0.01). The microRNA expression was not significantly different between MS patients and HD. We did not find significant alterations of gene expression or microRNA profiles in CD34+ HPCs of MS patients. Our results support the use of aHSCT for treatment of MS.
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Affiliation(s)
- A Lutterotti
- Institute of Neuroimmunology and Clinical MS Research, Center for Molecular Neurobiology Hamburg, Germany
- Clinical Department of Neurology, Innsbruck Medical University, Austria
| | - I Jelčić
- Institute of Neuroimmunology and Clinical MS Research, Center for Molecular Neurobiology Hamburg, Germany
- Department of Neurology, University Hospital Zurich, Switzerland
| | - C Schulze
- Systems Biology and Protein-Protein Interaction, Center for Molecular Neurobiology Hamburg, Germany
| | - S Schippling
- Institute of Neuroimmunology and Clinical MS Research, Center for Molecular Neurobiology Hamburg, Germany
| | - P Breiden
- Institute of Neuroimmunology and Clinical MS Research, Center for Molecular Neurobiology Hamburg, Germany
| | - B Mazzanti
- Department of Haematology, Careggi University Hospital, Italy
| | - S Reinhardt
- Institute of Neuroimmunology and Clinical MS Research, Center for Molecular Neurobiology Hamburg, Germany
| | - M DiGioia
- Department of Haematology, Careggi University Hospital, Italy
| | - A Repice
- Department of Neurological Sciences, University of Florence, Italy
| | - L Massacesi
- Department of Neurological Sciences, University of Florence, Italy
| | - A Sputtek
- Institute of Transfusion Medicine, University Medical Center Hamburg Eppendorf, Germany
| | | | - N Kroeger
- Center for Stem Cell Transplantation, University Medical Center Hamburg Eppendorf, Germany
| | - M Sospedra
- Institute of Neuroimmunology and Clinical MS Research, Center for Molecular Neurobiology Hamburg, Germany
| | - R Saccardi
- Department of Haematology, Careggi University Hospital, Italy
| | - A Zander
- Center for Stem Cell Transplantation, University Medical Center Hamburg Eppendorf, Germany
| | - R Martin
- Institute of Neuroimmunology and Clinical MS Research, Center for Molecular Neurobiology Hamburg, Germany
- Department of Neurology, University Hospital Zurich, Switzerland
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Shoukier M, Wickert J, Schröder J, Bartels I, Auber B, Zoll B, Salinas-Riester G, Weise D, Brockmann K, Zirn B, Burfeind P. A 16q12 microdeletion in a boy with severe psychomotor delay, craniofacial dysmorphism, brain and limb malformations, and a heart defect. Am J Med Genet A 2011; 158A:229-35. [DOI: 10.1002/ajmg.a.34387] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Accepted: 10/24/2011] [Indexed: 11/09/2022]
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Ganster C, Shirneshan K, Salinas-Riester G, Braulke F, Götze K, Platzbecker U, Haase D. 118 Comprehensive genetic characterization of MDS patients by CD34+ bone marrow and peripheral blood combining FISH-, SNP- and chromosome banding analysis. Leuk Res 2011. [DOI: 10.1016/s0145-2126(11)70120-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Novota P, Zinöcker S, Norden J, Wang XN, Sviland L, Opitz L, Salinas-Riester G, Rolstad B, Dickinson AM, Walter L, Dressel R. Expression profiling of major histocompatibility and natural killer complex genes reveals candidates for controlling risk of graft versus host disease. PLoS One 2011; 6:e16582. [PMID: 21305040 PMCID: PMC3030590 DOI: 10.1371/journal.pone.0016582] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Accepted: 12/23/2010] [Indexed: 12/23/2022] Open
Abstract
Background The major histocompatibility complex (MHC) is the most important genomic region that contributes to the risk of graft versus host disease (GVHD) after haematopoietic stem cell transplantation. Matching of MHC class I and II genes is essential for the success of transplantation. However, the MHC contains additional genes that also contribute to the risk of developing acute GVHD. It is difficult to identify these genes by genetic association studies alone due to linkage disequilibrium in this region. Therefore, we aimed to identify MHC genes and other genes involved in the pathophysiology of GVHD by mRNA expression profiling. Methodology/Principal Findings To reduce the complexity of the task, we used genetically well-defined rat inbred strains and a rat skin explant assay, an in-vitro-model of the graft versus host reaction (GVHR), to analyze the expression of MHC, natural killer complex (NKC), and other genes in cutaneous GVHR. We observed a statistically significant and strong up or down regulation of 11 MHC, 6 NKC, and 168 genes encoded in other genomic regions, i.e. 4.9%, 14.0%, and 2.6% of the tested genes respectively. The regulation of 7 selected MHC and 3 NKC genes was confirmed by quantitative real-time PCR and in independent skin explant assays. In addition, similar regulations of most of the selected genes were observed in GVHD-affected skin lesions of transplanted rats and in human skin explant assays. Conclusions/Significance We identified rat and human MHC and NKC genes that are regulated during GVHR in skin explant assays and could therefore serve as biomarkers for GVHD. Several of the respective human genes, including HLA-DMB, C2, AIF1, SPR1, UBD, and OLR1, are polymorphic. These candidates may therefore contribute to the genetic risk of GVHD in patients.
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Affiliation(s)
- Peter Novota
- Department of Cellular and Molecular Immunology, University of Göttingen, Göttingen, Germany
| | - Severin Zinöcker
- Department of Anatomy, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Jean Norden
- Haematological Sciences, Institute of Cellular Medicine, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - Xiao Nong Wang
- Haematological Sciences, Institute of Cellular Medicine, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - Lisbet Sviland
- Department of Pathology, Haukeland Sykehus, Section of Pathology, Gades Institute, University of Bergen, Bergen, Norway
| | - Lennart Opitz
- Transcriptome Analysis Laboratory, University of Göttingen, Göttingen, Germany
| | | | - Bent Rolstad
- Department of Anatomy, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Anne M. Dickinson
- Haematological Sciences, Institute of Cellular Medicine, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - Lutz Walter
- Department of Primate Genetics, German Primate Center, Göttingen, Germany
| | - Ralf Dressel
- Department of Cellular and Molecular Immunology, University of Göttingen, Göttingen, Germany
- * E-mail:
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Opitz L, Salinas-Riester G, Grade M, Jung K, Jo P, Emons G, Ghadimi BM, Beissbarth T, Gaedcke J. Impact of RNA degradation on gene expression profiling. BMC Med Genomics 2010; 3:36. [PMID: 20696062 PMCID: PMC2927474 DOI: 10.1186/1755-8794-3-36] [Citation(s) in RCA: 137] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2009] [Accepted: 08/09/2010] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Gene expression profiling is a highly sensitive technique which is used for profiling tumor samples for medical prognosis. RNA quality and degradation influence the analysis results of gene expression profiles. The impact of this influence on the profiles and its medical impact is not fully understood. As patient samples are very valuable for clinical studies, it is necessary to establish criteria for the RNA quality to be able to use these samples in later analysis. METHODS To investigate the effects of RNA integrity on gene expression profiling, whole genome expression arrays were used. We used tumor biopsies from patients diagnosed with locally advanced rectal cancer. To simulate degradation, the isolated total RNA of all patients was subjected to heat-induced degradation in a time-dependent manner. Expression profiling was then performed and data were analyzed bioinformatically to assess the differences. RESULTS The differences introduced by RNA degradation were largely outweighed by the biological differences between the patients. Only a relatively small number of probes (275 out of 41,000) show a significant effect due to degradation. The genes that show the strongest effect due to RNA degradation were, especially, those with short mRNAs and probe positions near the 5' end. CONCLUSIONS Degraded RNA from tumor samples (RIN > 5) can still be used to perform gene expression analysis. A much higher biological variance between patients is observed compared to the effect that is imposed by degradation of RNA. Nevertheless there are genes, very short ones and those with the probe binding side close to the 5' end that should be excluded from gene expression analysis when working with degraded RNA. These results are limited to the Agilent 44 k microarray platform and should be carefully interpreted when transferring to other settings.
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Affiliation(s)
- Lennart Opitz
- Department Medical Statistics, University Medicine Göttingen, Humboldtallee 32, 37073 Göttingen, Germany
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Meyer S, Nolte J, Opitz L, Salinas-Riester G, Engel W. Pluripotent embryonic stem cells and multipotent adult germline stem cells reveal similar transcriptomes including pluripotency-related genes. Mol Hum Reprod 2010; 16:846-55. [PMID: 20624824 DOI: 10.1093/molehr/gaq060] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
DNA microarray analysis was performed with mouse multipotent adult germline stem cells (maGSCs) and embryonic stem cells (ESCs) from different genetic backgrounds cultured under standard ESC-culture conditions and under differentiation-promoting conditions by the withdrawal of the leukemia inhibitory factor (LIF) and treatment with retinoic acid (RA). The analyzed undifferentiated cell lines are very similar based on their global gene expression pattern and show 97-99% identity dependent on the analyzed background. Only 621 genes are differentially expressed in cells derived from mouse 129SV-background and 72 genes show differences in expression in cells generated from transgenic Stra8-EGFP/Rosa26-LacZ-background. Both maGSCs and ESCs express the same genes involved in the regulation of pluripotency and even show no differences in the expression level of these genes. When comparing maGSCs with previously published signature genes of other pluripotent cell lines, we found that maGSCs shared a very similar gene expression pattern with embryonic germ cells (EGCs). Also after differentiation of maGSCs and ESCs the transcriptomes of the cell lines are nearly identical which suggests that both cell types differentiate spontaneously in a very similar way. This is the first study, at transcriptome level, to compare ESCs and a pluripotent cell line derived from an adult organism (maGSCs).
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Affiliation(s)
- S Meyer
- Institute of Human Genetics, Georg-August-University Göttingen, Heinrich-Düker-Weg 12, D-37073 Göttingen, Germany
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Dimova I, Hlushchuk R, Makanya A, Djonov V, Theurl M, Schgoer W, Albrecht K, Beer A, Patsch JR, Schratzberger P, Mahata S, Kirchmair R, Didie M, Christalla P, Rau T, Eschenhagen T, Schumacher U, Lin Q, Zenke M, Zimmmermann W, Hoch M, Fischer P, Stapel B, Missol-Kolka E, Erschow S, Scherr M, Drexler H, Hilfiker-Kleiner D, Diebold I, Petry A, Kennel P, Djordjevic T, Hess J, Goerlach A, Castellano J, Aledo R, Sendra J, Costales P, Badimon L, Llorente-Cortes V, Dworatzek E, Mahmoodzadeh S, Regitz-Zagrosek V, Posa A, Varga C, Berko A, Veszelka M, Szablics P, Vari B, Pavo I, Laszlo F, Brandenburger M, Wenzel J, Bogdan R, Richardt D, Reppel M, Hescheler J, Terlau H, Dendorfer A, Heijman J, Rudy Y, Westra R, Volders P, Rasmusson R, Bondarenko V, Ertas Gokhan MD, Ural Ertan MD, Karaoz Erdal PHD, Aksoy Ayca PHD, Kilic Teoman MD, Kozdag Guliz MD, Vural Ahmet MD, Ural Dilek MD, Poulet C, Christ T, Wettwer E, Ravens U, Van Der Pouw Kraan C, Schirmer S, Fledderus J, Moerland P, Leyen T, Piek J, Van Royen N, Horrevoets A, Fleissner F, Jazbutyte V, Fiedler J, Galuppo P, Mayr M, Ertl G, Bauersachs J, Thum T, Protze S, Bussek A, Ravens U, Li F, Hoo R, Lam K, Xu A, Westenbrink B, Maass A, Sillje H, Van Veldhuisen D, Van Gilst W, De Boer R, Biesmans L, Bito V, Driessen R, Holemans P, Subramanian P, Lenaerts I, Huysmans C, Sipido K, Mourouzis I, Pantos C, Galanopoulos G, Gavra M, Perimenis P, Spanou D, Cokkinos D, Karshovska E, Berezin A, Panasenko T, Euler G, Partsch S, Harjung C, Heger J, Bogdanova A, Mihov D, Mocharla P, Yakushev S, Megens R, Vogel J, Gassmann M, Tavakoli R, Johansen D, Sanden E, Xi C, Sundset R, Ytrehus K, Bliksoen M, Rutkovskiy A, Akhtar S, Mariero L, Vaage I, Stenslokken K, Pisarenko O, Shulzhenko V, Studneva I, Serebryakova L, Tskitishvili O, Pelogeykina Y, Timoshin A, Heyll K, Vanin A, Ziberna L, Lunder M, Drevensek G, Passamonti S, Gorza L, Ravara B, Scapin C, Vitadello M, Zigrino F, Jansen Y, Gerosa G, Gwathmey J, Del Monte F, Vilahur G, Juan-Babot O, Onate B, Casani L, Badimon L, Lemoine S, Calmettes G, Weber C, Jaspard-Vinassa B, Duplaa C, Couffinhal T, Diolez P, Dos Santos P, Fusco A, Santulli G, Cipolletta E, Sorriento D, Cervero P, Schober A, Trimarco B, Feliciello A, Iaccarino G, Loganathan S, Barnucz E, Korkmaz S, Hirschberg K, Karck M, Szabo G, Kozichova K, Zafeiriou M, Hlavackova M, Neckar J, Kolar F, Novakova O, Novak F, Kusmic C, Matteucci M, Pelosi G, Vesentini N, Barsanti C, Noack C, Trivella M, Abraham N, L'abbate A, Muntean D, Mirica S, Duicu O, Raducan A, Hancu M, Fira-Mladinescu O, Ordodi V, Renger A, Voelkl J, Haubner B, Neely G, Moriell C, Seidl S, Pachinger O, Penninger J, Metzler B, Dietz R, Zelarayan L, Bergmann M, Meln I, Malashicheva A, Anisimov S, Kalinina N, Sysoeva V, Zaritskey A, Barbuti A, Scavone A, Mazzocchi N, Crespi A, Capilupo D, Difrancesco D, Qian L, Shim W, Gu Y, Mohammed S, Wong P, Noack C, Renger A, Zafiriou M, Dietz R, Schaeffer H, Bergmann M, Zelarayan L, Kovacs P, Simon J, Christ T, Wettwer E, Varro A, Ravens U, Athias P, Wolf J, Bouchot O, Vandroux D, Mathe A, De Carvalho A, Laurent G, Rainer P, Huber M, Edelmann F, Stojakovic T, Trantina-Yates A, Trauner M, Pieske B, Von Lewinski D, De Jong A, Maass A, Oberdorf-Maass S, Van Gelder I, Lin Y, Li J, Wang F, He Y, Li X, Xu H, Yang X, Coppini R, Ferrantini C, Ferrara C, Rossi A, Mugelli A, Poggesi C, Cerbai E, Rozmaritsa N, Voigt N, Christ T, Wettwer E, Dobrev D, Ravens U, Kienitz MC, Zoidl G, Bender K, Pott L, Kohajda Z, Kristof A, Kovacs P, Virag L, Varro A, Jost N, Voigt N, Trafford A, Ravens U, Dobrev D, Prnjavorac B, Mujaric E, Jukic J, Abduzaimovic K, Brack K, Patel V, Coote J, Ng G, Wilders R, Van Ginneken A, Verkerk A, Brack K, Coote J, Ng G, Xaplanteris P, Vlachopoulos C, Baou K, Vassiliadou C, Dima I, Ioakeimidis N, Stefanadis C, Ruifrok W, Qian C, Sillje H, Van Goor H, Van Veldhuisen D, Van Gilst W, De Boer R, Schmidt K, Kaiser F, Erdmann J, De Wit C, Barnett O, Kyyak Y, Cesana F, Boffi L, Mauri T, Alloni M, Betelli M, Nava S, Giannattasio C, Mancia G, Vilskersts R, Kuka J, Svalbe B, Liepinsh E, Dambrova M, Zakrzewicz A, Maroski J, Vorderwuelbecke B, Fiedorowicz K, Da Silva-Azevedo L, Pries A, Gryglewska B, Necki M, Zelawski M, Grodzicki T, Scoditti E, Massaro M, Carluccio M, Distante A, Storelli C, De Caterina R, Kocgirli O, Valcaccia S, Dao V, Suvorava T, Kumpf S, Floeren M, Oppermann M, Kojda G, Leo C, Ziogas J, Favaloro J, Woodman O, Goettsch W, Marton A, Goettsch C, Morawietz H, Khalifa E, Ashour Z, Dao V, Floeren M, Kumpf S, Suvorava T, Kojda G, Rupprecht V, Scalera F, Martens-Lobenhoffer J, Bode-Boeger S, Li W, Kwan Y, Leung G, Patella F, Mercatanti A, Pitto L, Rainaldi G, Tsimafeyeu I, Tishova Y, Wynn N, Kalinchenko S, Clemente Lorenzo M, Grande M, Barriocanal F, Aparicio M, Martin A, Hernandez J, Lopez Novoa J, Martin Luengo C, Kurlianskaya A, Denisevich T, Leo C, Ziogas J, Favaloro J, Woodman O, Barth N, Loot A, Fleming I, Wang Y, Gabrielsen A, Ripa R, Jorgensen E, Kastrup J, Arderiu G, Pena E, Badimon L, Kobus K, Czyszek J, Kozlowska-Wiechowska A, Milkiewicz P, Milkiewicz M, Madonna R, Montebello E, Geng Y, De Caterina R, Chin-Dusting J, Michell D, Skilton M, Dixon J, Dart A, Moore X, Hlushchuk R, Ehrbar M, Reichmuth P, Heinimann N, Djonov V, Hewing B, Stangl V, Stangl K, Laule M, Baumann G, Ludwig A, Widmer-Teske R, Mueller A, Stieger P, Tillmanns H, Braun-Dullaeus R, Sedding D, Troidl K, Eller L, Benli I, Apfelbeck H, Schierling W, Troidl C, Schaper W, Schmitz-Rixen T, Hinkel R, Trenkwalder T, Pfosser A, Globisch F, Stachel G, Lebherz C, Bock-Marquette I, Kupatt C, Seyler C, Duthil-Straub E, Zitron E, Scholz E, Thomas D, Gierten J, Karle C, Fink R, Padro T, Lugano R, Garcia-Arguinzonis M, Badimon L, Schuchardt M, Pruefer J, Toelle M, Pruefer N, Jankowski V, Jankowski J, Zidek W, Van Der Giet M, Pena E, Arderiu G, Badimon L, Fransen P, Van Hove C, Michiels C, Van Langen J, Bult H, Quarck R, Wynants M, Alfaro-Moreno E, Rosario Sepulveda M, Wuytack F, Van Raemdonck D, 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Sternak M, Khomich T, Jakubowski A, Szafarz M, Szczepanski W, Mateuszuk L, Szymura-Oleksiak J, Chlopicki S, Sulicka J, Strach M, Kierzkowska I, Surdacki A, Mikolajczyk T, Balwierz W, Guzik T, Grodzicki T, Dmitriev V, Oschepkova E, Polovitkina O, Titov V, Rogoza A, Shakur R, Metcalfe S, Bradley J, Demyanets S, Kaun C, Kastl S, Pfaffenberger S, Huk I, Maurer G, Huber K, Wojta J, Eriksson O, Aberg M, Siegbahn A, Prnjavorac B, Niccoli G, Sgueglia G, Conte M, Giubilato S, Cosentino N, Ferrante G, Crea F, Dmitriev V, Oschepkova E, Polovitkina O, Titov V, Ilisei D, Leon M, Mitu F, Kyriakakis E, Philippova M, Cavallari M, Bochkov V, Biedermann B, De Libero G, Erne P, Resink T, Titov V, Bakogiannis C, Antoniades C, Tousoulis D, Demosthenous M, Psarros C, Sfyras N, Channon K, Stefanadis C, Del Turco S, Navarra T, Basta G, De Caterina R, Carnicelli V, Frascarelli S, Zucchi R, Kostareva A, Malashicheva A, Sjoberg G, Gudkova A, Semernin E, Shlyakhto E, Sejersen T, Cucu N, Anton M, Stambuli D, Botezatu A, Arsene C, Lupeanu E, Anton G, Beer A, Theurl M, Schgoer W, Albrecht K, Patsch J, Huber E, Schratzberger P, Kirchmair R, Lande C, Cecchettini A, Tedeschi L, Trivella M, Citti L, Chen B, Ma Y, Yang Y, Ma X, Liu F, Hasanzad M, Rejali L, Fathi M, Minassian A, Mohammad Hassani R, Najafi A, Sarzaeem M, Sezavar S, Akhmedov A, Klingenberg R, Yonekawa K, Lohmann C, Gay S, Maier W, Neithard M, Luescher T, Xie X, Ma Y, Yang Y, Fu Z, Li X, Ma X, Liu F, Chen B, Kevorkov A, Verduci L, Mercatanti A, Cremisi F, Pitto L, Wonnerth A, Katsaros K, Zorn G, Kaun C, Weiss T, Huber K, Maurer G, Wojta J, De Rosa R, Galasso G, Piscione F, Santulli G, Iaccarino G, Piccolo R, Luciano R, Chiariello M, Szymanski M, Schoemaker R, Van Veldhuisen D, Van Gilst W, Hillege H, Rizzo S, Basso C, Thiene G, Valente M, Rickelt S, Franke W, Bartoloni G, Bianca S, Giurato E, Barone C, Ettore G, Bianca I, Eftekhari P, Wallukat G, Bekel A, Heinrich F, Fu M, Briedert M, Briand J, Roegel J, Rizzo S, Pilichou K, Basso C, Thiene G, Korkmaz S, Radovits T, Pali S, Hirschberg K, Zoellner S, Loganathan S, Karck M, Szabo G, Bartoloni G, Pucci A, Pantaleo J, Martino S, Pelosi G, Matteucci M, Kusmic C, Vesentini N, Piccolomini F, Viglione F, Trivella M, L'abbate A, Slavikova J, Chottova Dvorakova M, Kummer W, Campanile A, Spinelli L, Santulli G, Ciccarelli M, De Gennaro S, Assante Di Panzillo E, Trimarco B, Iaccarino G, Akbarzadeh Najar R, Ghaderian S, Tabatabaei Panah A, Vakili H, Rezaei Farimani A, Rezaie G, Beigi Harchegani A, Falcao-Pires I, Hamdani N, Gavina C, Van Der Velden J, Niessen H, Stienen G, Leite-Moreira A, Paulus W, Goncalves N, Falcao-Pires I, Moura C, Lamego I, Eloy C, Niessen H, Areias J, Leite-Moreira A, Bonda T, Dziemidowicz M, Hirnle T, Dmitruk I, Kaminski K, Musial W, Winnicka M, Villar A, Merino D, Ares M, Pilar F, Valdizan E, Hurle M, Nistal J, Vera V, Toelle M, Van Der Giet M, Zidek W, Jankowski J, Astvatsatryan A, Senan M, Karuppasamy P, Chaubey S, Dew T, Sherwood R, Desai J, John L, 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C, Antoniades C, Antonopoulos A, Tousoulis D, Miliou A, Triantafyllou C, Channon K, Stefanadis C, Masson W, Siniawski D, Sorroche P, Casanas L, Scordo W, Krauss J, Cagide A, Schuchardt M, Toelle M, Huang T, Wiedon A, Van Der Giet M, Chin-Dusting J, Lee S, Walker K, Dart A, O'dea K, Skilton M, Perez Berbel P, Arrarte Esteban V, Garcia Valentin M, Sola Villalpando M, Lopez Vaquero C, Caballero L, Quintanilla Tello M, Sogorb Garri F, Duerr G, Elhafi N, Bostani T, Swieny L, Kolobara E, Welz A, Roell W, Dewald O, Kaludercic N, Takimoto E, Nagayama T, Chen K, Shih J, Kass D, Di Lisa F, Paolocci N, Vinet L, Pezet M, Briec F, Previlon M, Rouet-Benzineb P, Hivonnait A, Charpentier F, Mercadier J, Villar A, Cobo M, Llano M, Montalvo C, Exposito V, Nistal J, Hurle M, Ruifrok W, Meems L. Saturday, 17 July 2010. Cardiovasc Res 2010. [DOI: 10.1093/cvr/cvq174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Budde H, Schmitt S, Fitzner D, Opitz L, Salinas-Riester G, Simons M. Control of oligodendroglial cell number by the miR-17-92 cluster. Development 2010; 137:2127-32. [PMID: 20504959 DOI: 10.1242/dev.050633] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The generation of myelinating cells in the central nervous system requires the initiation of specific gene expression programs in oligodendrocytes. We reasoned that microRNAs (miRNAs) could play an important role in this process by regulating crucial developmental genes. Microarray profiling of cultured oligodendrocytes identified the miR-17-92 miRNA cluster as highly enriched in oligodendrocytes. We specifically deleted the miR-17-92 cluster in oligodendrocytes using 2',3'-cyclic nucleotide 3' phosphodiesterase (Cnp)-Cre mice. Absence of miR-17-92 leads to a reduction in oligodendrocyte number in vivo and we find that the expression of these miRNAs in primary cultures of oligodendrocyte precursor cells promotes cell proliferation by influencing Akt signaling. Together, these results suggest that the miRNA pathway is essential in determining oligodendroglial cell number and that the miR-17-92 cluster is crucial in this process.
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Affiliation(s)
- Holger Budde
- Max Planck Institute for Experimental Medicine, Hermann-Rein-Strasse 3, D-37075 Göttingen, Germany
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Auber B, Burfeind P, Thiels C, Alsat EA, Shoukier M, Liehr T, Nelle H, Bartels I, Salinas-Riester G, Laccone F. An unbalanced translocation resulting in a duplication of Xq28 causes a Rett syndrome-like phenotype in a female patient. Clin Genet 2010; 77:593-7. [DOI: 10.1111/j.1399-0004.2009.01363.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Blaschke M, Giesen M, Baums M, Kopp R, Heikens J, Salinas-Riester G, Siggelkow H. Differential expression of ostoblast related genes in mesenchymal progenitor cells induced by serum of patients with active crohn's disease with and without osteoporosis. J Stem Cells Regen Med 2007; 2:47-48. [PMID: 24692898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- M Blaschke
- Department of Gastroenterology and Endocrinology, Georg-August-University , Goettingen, Germany
| | - M Giesen
- Department of Gastroenterology and Endocrinology, Georg-August-University , Goettingen, Germany
| | - M Baums
- Department of Orthopedic Surgery, Georg-August-University , Goettingen, Germany
| | - R Kopp
- Department of Gastroenterology and Endocrinology, Georg-August-University , Goettingen, Germany
| | - J Heikens
- Department of Molecular Cellbiology, Georg-August-University , Goettingen, Germany
| | - G Salinas-Riester
- Department of Molecular Cellbiology, Georg-August-University , Goettingen, Germany
| | - H Siggelkow
- Department of Gastroenterology and Endocrinology, Georg-August-University , Goettingen, Germany ; Endokrinologikum , Goettingen, Germany
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