1
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Weller B, Lin CW, Pogoutse O, Sauer M, Marin-de la Rosa N, Strobel A, Young V, Knapp JJ, Rayhan A, Falter C, Kim DK, Roth FP, Falter-Braun P. A resource of human coronavirus protein-coding sequences in a flexible, multipurpose Gateway Entry clone collection. G3 (Bethesda) 2023:7189761. [PMID: 37267226 DOI: 10.1093/g3journal/jkad105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 05/05/2023] [Indexed: 06/04/2023]
Abstract
The COVID-19 pandemic has catalyzed unprecedented scientific data and reagent sharing and collaboration, which enabled understanding the virology of the SARS-CoV-2 virus and vaccine development at record speed. The pandemic, however, has also raised awareness of the danger posed by the family of coronaviruses, of which 7 are known to infect humans and dozens have been identified in reservoir species, such as bats, rodents, or livestock. To facilitate understanding the commonalities and specifics of coronavirus infections and aspects of viral biology that determine their level of lethality to the human host, we have generated a collection of freely available clones encoding nearly all human coronavirus proteins known to date. We hope that this flexible, Gateway-compatible vector collection will encourage further research into the interactions of coronaviruses with their human host, to increase preparedness for future zoonotic viral outbreaks.
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Affiliation(s)
- Benjamin Weller
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764 Munich-Neuherberg, Germany
| | - Chung-Wen Lin
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764 Munich-Neuherberg, Germany
| | - Oxana Pogoutse
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, 160 College St, Toronto, Ontario M5S 3E1, Canada
- Department of Molecular Genetics, University of Toronto, 1 King's College Cir., Toronto, Ontario M5S 1A8, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, 600 University Avenue, Toronto, Ontario M5G 1X5, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, 450 Brookline Ave, Boston, MA 02215, USA
| | - Mayra Sauer
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764 Munich-Neuherberg, Germany
| | - Nora Marin-de la Rosa
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764 Munich-Neuherberg, Germany
| | - Alexandra Strobel
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764 Munich-Neuherberg, Germany
| | - Veronika Young
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764 Munich-Neuherberg, Germany
| | - Jennifer J Knapp
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, 160 College St, Toronto, Ontario M5S 3E1, Canada
- Department of Molecular Genetics, University of Toronto, 1 King's College Cir., Toronto, Ontario M5S 1A8, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, 600 University Avenue, Toronto, Ontario M5G 1X5, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, 450 Brookline Ave, Boston, MA 02215, USA
| | - Ashyad Rayhan
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, 160 College St, Toronto, Ontario M5S 3E1, Canada
- Department of Molecular Genetics, University of Toronto, 1 King's College Cir., Toronto, Ontario M5S 1A8, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, 600 University Avenue, Toronto, Ontario M5G 1X5, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, 450 Brookline Ave, Boston, MA 02215, USA
| | - Claudia Falter
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764 Munich-Neuherberg, Germany
| | - Dae-Kyum Kim
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, 160 College St, Toronto, Ontario M5S 3E1, Canada
- Department of Molecular Genetics, University of Toronto, 1 King's College Cir., Toronto, Ontario M5S 1A8, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, 600 University Avenue, Toronto, Ontario M5G 1X5, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, 450 Brookline Ave, Boston, MA 02215, USA
- Department of Cancer Genetics and Genomics, Roswell Park Comprehensive Cancer Center, Elm & Carlton Streets, Buffalo, NY 14263, USA
| | - Frederick P Roth
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, 160 College St, Toronto, Ontario M5S 3E1, Canada
- Department of Molecular Genetics, University of Toronto, 1 King's College Cir., Toronto, Ontario M5S 1A8, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, 600 University Avenue, Toronto, Ontario M5G 1X5, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, 450 Brookline Ave, Boston, MA 02215, USA
- Department of Computer Science, University of Toronto, 40 St. George Street, Toronto, Ontario M5S 2E4, Canada
| | - Pascal Falter-Braun
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764 Munich-Neuherberg, Germany
- Microbe-Host Interactions, Faculty of Biology, Ludwig-Maximilians-Universität (LMU) München, Großhaderner Str. 9, 82152 Planegg-Martinsried, Germany
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2
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Alves J, Sousa-Silva M, Soares P, Sauer M, Casal M, Soares-Silva I. Structural characterization of the Aspergillus niger citrate transporter CexA uncovers the role of key residues S75, R192 and Q196. Comput Struct Biotechnol J 2023; 21:2884-2898. [PMID: 37216016 PMCID: PMC10196274 DOI: 10.1016/j.csbj.2023.04.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 01/09/2023] [Revised: 04/25/2023] [Accepted: 04/25/2023] [Indexed: 05/24/2023] Open
Abstract
The Aspergillus niger CexA transporter belongs to the DHA1 (Drug-H+ antiporter) family. CexA homologs are exclusively found in eukaryotic genomes, and CexA is the sole citrate exporter to have been functionally characterized in this family so far. In the present work, we expressed CexA in Saccharomyces cerevisiae, demonstrating its ability to bind isocitric acid, and import citrate at pH 5.5 with low affinity. Citrate uptake was independent of the proton motive force and compatible with a facilitated diffusion mechanism. To unravel the structural features of this transporter, we then targeted 21 CexA residues for site-directed mutagenesis. Residues were identified by a combination of amino acid residue conservation among the DHA1 family, 3D structure prediction, and substrate molecular docking analysis. S. cerevisiae cells expressing this library of CexA mutant alleles were evaluated for their capacity to grow on carboxylic acid-containing media and transport of radiolabeled citrate. We also determined protein subcellular localization by GFP tagging, with seven amino acid substitutions affecting CexA protein expression at the plasma membrane. The substitutions P200A, Y307A, S315A, and R461A displayed loss-of-function phenotypes. The majority of the substitutions affected citrate binding and translocation. The S75 residue had no impact on citrate export but affected its import, as the substitution for alanine increased the affinity of the transporter for citrate. Conversely, expression of CexA mutant alleles in the Yarrowia lipolytica cex1Δ strain revealed the involvement of R192 and Q196 residues in citrate export. Globally, we uncovered a set of relevant amino acid residues involved in CexA expression, export capacity and import affinity.
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Affiliation(s)
- J. Alves
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - M. Sousa-Silva
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - P. Soares
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - M. Sauer
- University of Natural Resources and Life Sciences, Vienna, Department of Biotechnology, Institute of Microbiology and Microbial Biotechnology, Muthgasse 18, 1190 Vienna, Austria
- Austrian Centre of Industrial Biotechnology (ACIB GmbH), Muthgasse 11, 1190 Vienna, Austria
| | - M. Casal
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - I. Soares-Silva
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
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3
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Kim DK, Weller B, Lin CW, Sheykhkarimli D, Knapp JJ, Dugied G, Zanzoni A, Pons C, Tofaute MJ, Maseko SB, Spirohn K, Laval F, Lambourne L, Kishore N, Rayhan A, Sauer M, Young V, Halder H, la Rosa NMD, Pogoutse O, Strobel A, Schwehn P, Li R, Rothballer ST, Altmann M, Cassonnet P, Coté AG, Vergara LE, Hazelwood I, Liu BB, Nguyen M, Pandiarajan R, Dohai B, Coloma PAR, Poirson J, Giuliana P, Willems L, Taipale M, Jacob Y, Hao T, Hill DE, Brun C, Twizere JC, Krappmann D, Heinig M, Falter C, Aloy P, Demeret C, Vidal M, Calderwood MA, Roth FP, Falter-Braun P. A proteome-scale map of the SARS-CoV-2-human contactome. Nat Biotechnol 2023; 41:140-149. [PMID: 36217029 PMCID: PMC9849141 DOI: 10.1038/s41587-022-01475-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 08/15/2022] [Indexed: 01/22/2023]
Abstract
Understanding the mechanisms of coronavirus disease 2019 (COVID-19) disease severity to efficiently design therapies for emerging virus variants remains an urgent challenge of the ongoing pandemic. Infection and immune reactions are mediated by direct contacts between viral molecules and the host proteome, and the vast majority of these virus-host contacts (the 'contactome') have not been identified. Here, we present a systematic contactome map of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) with the human host encompassing more than 200 binary virus-host and intraviral protein-protein interactions. We find that host proteins genetically associated with comorbidities of severe illness and long COVID are enriched in SARS-CoV-2 targeted network communities. Evaluating contactome-derived hypotheses, we demonstrate that viral NSP14 activates nuclear factor κB (NF-κB)-dependent transcription, even in the presence of cytokine signaling. Moreover, for several tested host proteins, genetic knock-down substantially reduces viral replication. Additionally, we show for USP25 that this effect is phenocopied by the small-molecule inhibitor AZ1. Our results connect viral proteins to human genetic architecture for COVID-19 severity and offer potential therapeutic targets.
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Affiliation(s)
- Dae-Kyum Kim
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, Toronto, Ontario, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Cancer Genetics and Genomics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Benjamin Weller
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Chung-Wen Lin
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Dayag Sheykhkarimli
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, Toronto, Ontario, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
| | - Jennifer J Knapp
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, Toronto, Ontario, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
| | - Guillaume Dugied
- Unité de Génétique Moléculaire des Virus à ARN, Département de Virologie, Institut Pasteur, Paris, France
- UMR3569, Centre National de la Recherche Scientifique, Paris, France
- Université de Paris, Paris, France
| | | | - Carles Pons
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute for Science and Technology, Barcelona, Spain
| | - Marie J Tofaute
- Research Unit Cellular Signal Integration, Institute of Molecular Toxicology and Pharmacology, Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Sibusiso B Maseko
- Laboratory of Viral Interactomes, GIGA Institute, University of Liège, Liège, Belgium
| | - Kerstin Spirohn
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Florent Laval
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
- Laboratory of Viral Interactomes, GIGA Institute, University of Liège, Liège, Belgium
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA
- TERRA Teaching and Research Centre, University of Liège, Gembloux, Belgium
- Laboratory of Molecular and Cellular Epigenetics, GIGA Institute, University of Liège, Liège, Belgium
| | - Luke Lambourne
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Nishka Kishore
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, Toronto, Ontario, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
| | - Ashyad Rayhan
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, Toronto, Ontario, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
| | - Mayra Sauer
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Veronika Young
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Hridi Halder
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Nora Marín-de la Rosa
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Oxana Pogoutse
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, Toronto, Ontario, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
| | - Alexandra Strobel
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Patrick Schwehn
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Roujia Li
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, Toronto, Ontario, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
| | - Simin T Rothballer
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Melina Altmann
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Patricia Cassonnet
- Unité de Génétique Moléculaire des Virus à ARN, Département de Virologie, Institut Pasteur, Paris, France
- UMR3569, Centre National de la Recherche Scientifique, Paris, France
- Université de Paris, Paris, France
| | - Atina G Coté
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, Toronto, Ontario, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
| | - Lena Elorduy Vergara
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Isaiah Hazelwood
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, Toronto, Ontario, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
| | - Betty B Liu
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, Toronto, Ontario, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
| | - Maria Nguyen
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, Toronto, Ontario, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
| | - Ramakrishnan Pandiarajan
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Bushra Dohai
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Patricia A Rodriguez Coloma
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Juline Poirson
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Molecular Architecture of Life Program, Canadian Institute for Advanced Research (CIFAR), Toronto, ON, Canada
| | - Paolo Giuliana
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, Toronto, Ontario, Canada
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
| | - Luc Willems
- TERRA Teaching and Research Centre, University of Liège, Gembloux, Belgium
- Laboratory of Molecular and Cellular Epigenetics, GIGA Institute, University of Liège, Liège, Belgium
| | - Mikko Taipale
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Laboratory of Viral Interactomes, GIGA Institute, University of Liège, Liège, Belgium
| | - Yves Jacob
- Unité de Génétique Moléculaire des Virus à ARN, Département de Virologie, Institut Pasteur, Paris, France
- UMR3569, Centre National de la Recherche Scientifique, Paris, France
- Université de Paris, Paris, France
| | - Tong Hao
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - David E Hill
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Christine Brun
- Aix-Marseille Université, Inserm, TAGC, Marseille, France
- CNRS, Marseille, France
| | - Jean-Claude Twizere
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
- Laboratory of Viral Interactomes, GIGA Institute, University of Liège, Liège, Belgium
- TERRA Teaching and Research Centre, University of Liège, Gembloux, Belgium
| | - Daniel Krappmann
- Research Unit Cellular Signal Integration, Institute of Molecular Toxicology and Pharmacology, Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Matthias Heinig
- Institute of Computational Biology (ICB), Computational Health Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
- Department of Informatics, Technische Universität München, Munich, Germany
| | - Claudia Falter
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Patrick Aloy
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute for Science and Technology, Barcelona, Spain
- Institució Catalana de Recerca I Estudis Avaçats (ICREA), Barcelona, Spain
| | - Caroline Demeret
- Unité de Génétique Moléculaire des Virus à ARN, Département de Virologie, Institut Pasteur, Paris, France.
- UMR3569, Centre National de la Recherche Scientifique, Paris, France.
- Université de Paris, Paris, France.
| | - Marc Vidal
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA.
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA.
| | - Michael A Calderwood
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA.
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA.
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA.
| | - Frederick P Roth
- Donnelly Centre for Cellular and Biomolecular Research (CCBR), University of Toronto, Toronto, Ontario, Canada.
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada.
- Lunenfeld-Tanenbaum Research Institute (LTRI), Sinai Health System, Toronto, Ontario, Canada.
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA.
- Department of Computer Science, University of Toronto, Toronto, Ontario, Canada.
| | - Pascal Falter-Braun
- Institute of Network Biology (INET), Molecular Targets and Therapeutics Center (MTTC), Helmholtz Zentrum München, German Research Center for Environmental Health, Munich-Neuherberg, Germany.
- Microbe-Host Interactions, Faculty of Biology, Ludwig-Maximilians-Universität (LMU) München, Planegg-Martinsried, Germany.
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4
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Glatthorn H, Sauer M, Brandt J, Ananth C. P–773 Infertility treatment and the risk of small for gestational age births: a population-based study in the United States. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
What is the association between infertility treatments and small for gestational age (SGA) births?
Summary answer
Women who conceived pregnancies with any infertility treatment had a decreased risk of SGA <10th, <5th and <3rd percentiles compared to naturally conceived pregnancies.
What is known already
Assisted reproductive technology (ART) and other infertility treatments have long been associated with an increased risk of SGA births, which confers a greater risk of perinatal morbidity and mortality compared to appropriate for gestational age births.
Study design, size, duration
This is a cross-sectional study of 16,836,228 births in the United States (US) between 2015–2019. The exposure group included women who underwent any infertility treatment, including ART and prescribed fertility enhancing medications. The comparison group included those who had naturally conceived pregnancies. The primary outcome was SGA birth, defined as sex-specific birthweight <10th percentile for gestational age. Secondary outcomes included SGA <5th and <3rd percentile births.
Participants/materials, setting, methods
Pregnant subjects (n = 16,836,228) in the US who delivered non-malformed, singleton live births between 24–44 weeks’ gestational age. We estimated risk of SGA births in relation to any infertility treatment from fitting log-linear Poisson regression models with robust variance. Risk ratios (RR) and 95% confidence intervals (CI) were estimated as the effect measure before and after adjusting for confounders. We also performed a sensitivity analysis to correct for potential non-differential exposure misclassification and unmeasured confounding biases.
Main results and the role of chance
During the study period, 1.4% (n = 231,177) of non-malformed singleton live births resulted from infertility treatments (0.8% ART and 0.6% fertility enhancing medications). Of these, 9.4% (n = 21,771) of pregnancies conceived with infertility treatment were complicated by SGA <10th percentile compared to 11.9% (n = 1,755,925) of naturally conceived pregnancies. For pregnancies conceived with infertility treatment versus naturally conceived pregnancies, the adjusted RR for SGA <10th percentile was 1.07 (95% CI 1.06, 1.08). However, after correction for misclassification bias and unmeasured confounding, infertility treatment was found to be protective for SGA and conferred a 27% reduced risk of SGA <10th percentile (bias-corrected RR 0.73, 95% CI 0.53, 0.85). These trends were similar for analyses stratified by exposure to ART and fertility enhancing medications and secondary SGA outcomes, including SGA <5th and <3rd percentile.
Limitations, reasons for caution
All information collected on infertility treatment relies on self-reporting by patients and recording by hospital staff at the time of delivery, which likely resulted in underreporting of infertility treatments. Additionally, we cannot determine the impact of interventions that were not recorded, such as intrauterine insemination (IUI).
Wider implications of the findings: Compared to naturally conceived pregnancies, exposure to infertility treatment is associated with reduction in the risk of SGA births. These findings, which are contrary to some published reports, likely reflect changes in the modern practice of infertility care in the US, and importantly, robust analysis of the national data.
Trial registration number
Not applicable
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Affiliation(s)
- H Glatthorn
- Rutgers Robert Wood Johnson Medical School, Obstetrics- Gynecology and Reproductive Sciences, New Brunswick- NJ, USA
| | - M Sauer
- Rutgers Robert Wood Johnson Medical School, Obstetrics- Gynecology and Reproductive Sciences, New Brunswick- NJ, USA
| | - J Brandt
- Rutgers Robert Wood Johnson Medical School, Obstetrics- Gynecology and Reproductive Sciences, New Brunswick- NJ, USA
- Rutgers Robert Wood Johnson Medical School, Division of Maternal Fetal Medicine, New Brunswick- NJ, USA
| | - C Ananth
- Rutgers Robert Wood Johnson Medical School, Obstetrics- Gynecology and Reproductive Sciences, New Brunswick- NJ, USA
- Rutgers Robert Wood Johnson Medical School, Division of Epidemiology and Biostatistics, New Brunswick- NJ, USA
- Rutgers School of Public Health, Department of Biostatistics and Epidemiology, Piscataway- NJ, USA
- Rutgers Robert Wood Johnson Medical School, Cardiovascular Institute of New Jersey CVI-NJ, New Brunswick- NJ, USA
- Rutgers Robert Wood Johnson Medical School, Environmental and Occupational Health Sciences Institute EOHSI, New Brunswick- NJ, USA
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5
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Farley G, Sauer M, Brandt J, Ananth C. P–776 Singleton pregnancies conceived with infertility treatments and the risk of
neonatal and infant mortality. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
Is maternal infertility treatment associated with an increased risk of neonatal and infant mortality when compared to natural conception?
Summary answer
Infertility treatment is associated with a 70% increased adjusted risk of neonatal mortality. This association is strongly mediated by preterm delivery.
What is known already
The number of assisted reproduction technology (ART) cycles performed in the United States (US) increased by 39% from 142,435 cycles in 2007 to 197,737 in 2016. Within this growing experience, several studies described an increased risk of preterm delivery, low birth weight, congenital malformations, neonatal intensive care unit admission, stillbirth, and perinatal mortality among singletons conceived through ART compared to those conceived naturally. Experts have called for ART patients to be advised of potential increased risk for adverse perinatal outcomes and for obstetricians to manage these pregnancies as high risk.
Study design, size, duration
This is a cross-sectional study of 11,289,466 pregnancies in the United States (US) from 2015–2017 that resulted in a non-malformed singleton live birth. The exposure group includes births resulting from any infertility treatment method, including ART and fertility-enhancing drugs. The control group includes births resulting from natural conceptions. The primary outcomes measured were neonatal (within 1 month), post-neonatal (1 month to a year), and infant (up to 1 year) mortality.
Participants/materials, setting, methods
Pregnancies (n = 11,289,466) resulting in a non-malformed singleton live birth in the US from 2015–2017. Associations were estimated from log-linear Poisson regression models with robust variance. Risk ratio (RR) and 95% confidence interval (CI) were derived as the effect measure with adjustments for confounders. The impact of exposure misclassification and unmeasured confounding biases were assessed. A causal mediation analysis of the infertility treatment-mortality association with preterm delivery (<37 weeks) was performed.
Main results and the role of chance
Any infertility treatment was documented in 1.3% (n = 142,215) of singleton live births during the study period. Any infertility treatment was associated with a 70% increased adjusted risk of neonatal mortality (RR 1.70, 95% CI 1.54–1.88), with an even higher risk for early neonatal (RR 1.82, 95% CI 1.63–2.05) than late neonatal (RR 1.37, 95% CI 1.11–1.69) mortality. These risks were similar among pregnancies conceived through ART and treatment with fertility-enhancing drugs. The mediation analysis showed that 68% (95% CI 59–81) of the total effect of infertility treatment on neonatal mortality was mediated through preterm delivery. In a sensitivity analysis, following corrections for exposure misclassification and unmeasured confounding biases, these risks were higher for early neonatal (bias-corrected RR [RRbc] 2.94 95% CIbc 2.16–4.01), but not for late neonatal (RRbc 1.04, 95% CIbc 0.68–1.59) mortality.
Limitations, reasons for caution
Limitations of the study include the potential underreporting of infertility treatment on birth certificates and potential confounding from sociodemographic characteristics that were not accounted for in this study.
Wider implications of the findings: Pregnancies conceived with infertility treatment are associated with increased neonatal mortality and this association is mediated by the increased risk of preterm delivery. Knowledge of this risk should be shared with prospective couples consulting for fertility care in order to best provide adequate informed consent.
Trial registration number
Not applicable
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Affiliation(s)
- G Farley
- Rutgers Robert Wood Johnson Medical School, MD Candidate, New Brunswick, USA
| | - M Sauer
- Rutgers Robert Wood Johnson Medical School, Department of Obstetrics Gynecology and Reproductive Sciences, New Brunswick, USA
| | - J Brandt
- Rutgers Robert Wood Johnson Medical School, Department of Obstetrics Gynecology and Reproductive Sciences, New Brunswick, USA
| | - C Ananth
- Rutgers Robert Wood Johnson Medical School, Department of Obstetrics Gynecology and Reproductive Sciences, New Brunswick, USA
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Hoheneder R, Fitz E, Bischof RH, Russmayer H, Ferrero P, Peacock S, Sauer M. Efficient conversion of hemicellulose sugars from spent sulfite liquor into optically pure L-lactic acid by Enterococcus mundtii. Bioresour Technol 2021; 333:125215. [PMID: 33964599 DOI: 10.1016/j.biortech.2021.125215] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 06/12/2023]
Abstract
Spent sulfite liquor (SSL), a waste stream from wood pulp production, has great potential as carbon source for future industrial fermentations. In the present study, SSL was separated into a hemicellulose derived sugar syrup (HDSS) and a lignosulfonic fraction by simulated moving bed chromatography. The recovery of SSL sugars in the HDSS was 89% and the fermentation inhibitors furfural, 5-hydroxymethylfurfural and acetic acid were removed by 98.7%, 60.5% and 75.5%, respectively. The obtained sugars have been converted to L-lactic acid, a building block for bioplastics, by fermentation with the lactic acid bacterium Enterococcus mundtii DSM4838. Batch fermentations on HDSS produced up to 56.3 g/L L-lactic acid. Simultaneous conversion of pentose and hexose sugars during fed-batch fermentation of wildtype E. mundtii led to 87.9 g/L optically pure (>99%) L-lactic acid, with maximum productivities of 3.25 g/L.h and yields approaching 1.00 g/g during feeding phase from HDSS as carbon source.
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Affiliation(s)
- R Hoheneder
- Department of Wood Chemistry & Biotechnology, Wood Kplus - Kompetenzzentrum Holz GmbH, c/o Muthgasse 18, 1190 Vienna, Austria; Institute of Microbiology and Microbial Biotechnology, Department of Biotechnology, BOKU-University of Natural Resources and Life Sciences, Vienna, Muthgasse 18, 1190 Vienna, Austria
| | - E Fitz
- Department of Wood Chemistry & Biotechnology, Wood Kplus - Kompetenzzentrum Holz, c/o Werkstraße 2, 4860 Lenzing, Austria
| | - R H Bischof
- Lenzing Aktiengesellschaft, Werkstraße 2, 4860 Lenzing, Austria
| | - H Russmayer
- Institute of Microbiology and Microbial Biotechnology, Department of Biotechnology, BOKU-University of Natural Resources and Life Sciences, Vienna, Muthgasse 18, 1190 Vienna, Austria
| | - P Ferrero
- Amalgamated Research LLC, 2531 Orchard Drive East, Twin Falls, ID 83301, United States
| | - S Peacock
- Amalgamated Research LLC, 2531 Orchard Drive East, Twin Falls, ID 83301, United States
| | - M Sauer
- Institute of Microbiology and Microbial Biotechnology, Department of Biotechnology, BOKU-University of Natural Resources and Life Sciences, Vienna, Muthgasse 18, 1190 Vienna, Austria.
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7
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Böger D, Hartmann R, Sauer M. [Critical aspects of the transmandibular approach to the oral cavity and oropharynx]. HNO 2021; 70:110-116. [PMID: 34170338 DOI: 10.1007/s00106-021-01073-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND In the context of tumor surgery, the median mandibulotomy as an access route to the oral cavity and oropharynx provides an excellent overview of the surgical site. However, it is not regarded entirely unproblematic with regard to early and later complications that may arise. OBJECTIVE The results and complications of the median mandibulotomy will be presented based on data collected from our own patient collective. MATERIALS AND METHODS A total of 21 patients who had undergone a median mandibulotomy as part of tumor surgery at the Department of Otorhinolaryngology of the SRH Zentralklinikum Suhl were examined over a period from 01 January 2010 to 31 December 2020. The patient files were retrospectively evaluated. RESULTS A stair-step median mandibulotomy was performed in all 21 patients. Reconstruction was performed using a 2.8 mm thick angled mandibular plate and bicortical locking screws. The mean follow-up period was 29.8 months. In all, 7 patients (33%) had a recurrence at the time of surgery; 5 patients (24%) had already undergone pre-radiation. Furthermore, 18 patients (85.7%) received adjuvant radiotherapy. We found plate loosening or extrusion in 0 of 21 cases. A salivary fistula (4.7%) was observed in 1 patient. Trismus was found in 4 (19%) cases during follow-up. Osteoradionecrosis was found in 2 (9.5%) of 21 cases. Cosmetic deficits were not observed. CONCLUSION Our results show that the stair-step median mandibulotomy in combination with a 2.8 mm thick reconstruction plate and bicortical locking screws leads to a stable and safe reconstruction even with pre-irradiated situations. Plate loosening or extrusion did not occur.
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Affiliation(s)
- D Böger
- Klinik für Hals‑, Nasen- und Ohrenkrankheiten/Plastische Operationen, SRH Zentralklinikum Suhl, Albert-Schweitzer-Str. 2, 98527, Suhl, Deutschland.
| | - R Hartmann
- Klinik für Hals‑, Nasen- und Ohrenkrankheiten/Plastische Operationen, SRH Zentralklinikum Suhl, Albert-Schweitzer-Str. 2, 98527, Suhl, Deutschland
| | - M Sauer
- Klinik für Mund‑, Kiefer- und Gesichtschirurgie/Plastische Operationen, SRH Zentralklinikum Suhl, Albert-Schweitzer-Str. 2, 98527, Suhl, Deutschland
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8
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Rathinam C, Sauer M, Ghosh A, Rudolph C, Hegazy A, Schlegelberger B, Welte K, Klein C. Correction: Generation and characterization of a novel hematopoietic progenitor cell line with DC differentiation potential. Leukemia 2021; 35:2139. [PMID: 33875794 DOI: 10.1038/s41375-021-01223-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- C Rathinam
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany
| | - M Sauer
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany
| | - A Ghosh
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany
| | - C Rudolph
- Institute for Cell and Molecular Pathology, Hannover Medical School, Hannover, Germany
| | - A Hegazy
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany
| | - B Schlegelberger
- Institute for Cell and Molecular Pathology, Hannover Medical School, Hannover, Germany
| | - K Welte
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany
| | - C Klein
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany.
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9
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Altmann M, Altmann S, Rodriguez PA, Weller B, Vergara LE, Palme J, la Rosa NMD, Sauer M, Wenig M, Villaécija-Aguilar JA, Sales J, Lin CW, Pandiarajan R, Young V, Strobel A, Gross L, Carbonnel S, Kugler KG, Garcia-Molina A, Bassel GW, Falter C, Mayer KFX, Gutjahr C, Vlot AC, Grill E, Falter-Braun P. Publisher Correction: Extensive signal integration by the phytohormone protein network. Nature 2020; 584:E34. [PMID: 32724209 DOI: 10.1038/s41586-020-2585-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Affiliation(s)
- Melina Altmann
- Institute of Network Biology (INET), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Stefan Altmann
- Institute of Network Biology (INET), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Patricia A Rodriguez
- Institute of Network Biology (INET), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Benjamin Weller
- Institute of Network Biology (INET), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Lena Elorduy Vergara
- Institute of Network Biology (INET), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Julius Palme
- Institute of Network Biology (INET), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany.,Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Nora Marín-de la Rosa
- Institute of Network Biology (INET), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Mayra Sauer
- Institute of Network Biology (INET), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Marion Wenig
- Inducible Resistance Signaling Group, Institute of Biochemical Plant Pathology (BIOP), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | | | - Jennifer Sales
- Inducible Resistance Signaling Group, Institute of Biochemical Plant Pathology (BIOP), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Chung-Wen Lin
- Institute of Network Biology (INET), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Ramakrishnan Pandiarajan
- Institute of Network Biology (INET), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Veronika Young
- Institute of Network Biology (INET), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Alexandra Strobel
- Institute of Network Biology (INET), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Lisa Gross
- Botany, TUM School of Life Sciences, Technical University of Munich (TUM), Freising, Germany
| | - Samy Carbonnel
- Genetics, Faculty of Biology, Ludwig-Maximilians-Universität (LMU) München, Planegg-Martinsried, Germany
| | - Karl G Kugler
- Plant Genome and Systems Biology (PGSB), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Antoni Garcia-Molina
- Institute of Network Biology (INET), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany.,Plant Molecular Biology, Faculty of Biology, Ludwig-Maximilians-Universität (LMU) München, Planegg-Martinsried, Germany
| | - George W Bassel
- School of Biosciences, University of Birmingham, Birmingham, UK
| | - Claudia Falter
- Institute of Network Biology (INET), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Klaus F X Mayer
- Plant Genome and Systems Biology (PGSB), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany.,TUM School of Life Sciences, Technical University of Munich (TUM), Freising, Germany
| | - Caroline Gutjahr
- Plant Genetics, TUM School of Life Sciences, Technical University of Munich (TUM), Freising, Germany.,Genetics, Faculty of Biology, Ludwig-Maximilians-Universität (LMU) München, Planegg-Martinsried, Germany
| | - A Corina Vlot
- Inducible Resistance Signaling Group, Institute of Biochemical Plant Pathology (BIOP), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany
| | - Erwin Grill
- Botany, TUM School of Life Sciences, Technical University of Munich (TUM), Freising, Germany
| | - Pascal Falter-Braun
- Institute of Network Biology (INET), Helmholtz Center Munich, German Research Center for Environmental Health, Munich-Neuherberg, Germany. .,Microbe-Host Interactions, Faculty of Biology, Ludwig-Maximilians-Universität (LMU) München, Planegg-Martinsried, Germany.
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10
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Dual S, Hall S, Sauer M, Cesarovic N, Starck C, Meboldt M, Suendermann S, Daners MS. The Depolarization Amplitude of the Electromyogram is a Measure of End-Diastolic Ventricular Volume. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.1037] [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: 11/25/2022] Open
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11
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Putz EJ, Putz AM, Boettcher A, Charley S, Sauer M, Palmer M, Phillips R, Hostetter J, Loving CL, Cunnick JE, Tuggle CK. Successful development of methodology for detection of hapten-specific contact hypersensitivity (CHS) memory in swine. PLoS One 2019; 14:e0223483. [PMID: 31596901 PMCID: PMC6785115 DOI: 10.1371/journal.pone.0223483] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 09/23/2019] [Indexed: 11/30/2022] Open
Abstract
Hapten contact hypersensitivity (CHS) elicits a well-documented inflammation response that can be used to illustrate training of immune cells through hapten-specific CHS memory. The education of hapten-specific memory T cells has been well-established, recent research in mice has expanded the “adaptive” characteristic of a memory response from solely a function of the adaptive immune system, to innate cells as well. To test whether similar responses are seen in a non-rodent model, we used hapten-specific CHS to measure the ear inflammation response of outbred pigs to dinitrofluorobenzene (DNFB), oxazolone (OXA), or vehicle controls. We adapted mouse innate memory literature protocols to the domestic pig model. Animals were challenged up to 32 days post initial sensitization exposure to the hapten, and specific ear swelling responses to this challenge were significant for 7, 21, and 32 days post-sensitization. We established hapten-specific CHS memory exists in a non-rodent model. We also developed a successful protocol for demonstrating these CHS responses in a porcine system.
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Affiliation(s)
- E. J. Putz
- Iowa State University, Department of Animal Science, Ames, IA, United States of America
| | - A. M. Putz
- Iowa State University, Department of Animal Science, Ames, IA, United States of America
| | - A. Boettcher
- Iowa State University, Department of Animal Science, Ames, IA, United States of America
| | - S. Charley
- Iowa State University, Department of Animal Science, Ames, IA, United States of America
| | - M. Sauer
- Iowa State University, Department of Animal Science, Ames, IA, United States of America
| | - M. Palmer
- USDA-ARS-National Animal Disease Center, Infectious Bacterial Diseases of Livestock Research Unit, Ames, IA, United States of America
| | - R. Phillips
- Iowa State University College of Veterinary Medicine, Department of Veterinary Pathology Science, Ames, IA, United States of America
| | - J. Hostetter
- Iowa State University College of Veterinary Medicine, Department of Veterinary Pathology Science, Ames, IA, United States of America
| | - C. L. Loving
- USDA-ARS-National Animal Disease Center, Food Safety and Enteric Pathogens Research Unit, Ames, IA, United States of America
| | - J. E. Cunnick
- Iowa State University, Department of Animal Science, Ames, IA, United States of America
| | - C. K. Tuggle
- Iowa State University, Department of Animal Science, Ames, IA, United States of America
- * E-mail:
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12
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Rasko J, Walters M, Kwiatkowski J, Hongeng S, Porter J, Sauer M, Thrasher A, Thuret I, Schiller G, Elliot H, Deary B, Chen Y, Tao G, Asmal M, Locatelli F, Thompson A. Efficacy and safety of LentiGlobin gene therapy in patients with transfusion-dependent β-thalassemia and non-β0/β0 genotypes: Updated results from the completed phase 1/2 Northstar and ongoing phase 3 Northstar-2 studies. Cytotherapy 2019. [DOI: 10.1016/j.jcyt.2019.03.578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Harwood CR, Park SH, Sauer M. Editorial for the thematic issue on “Industrial Microbiology”. FEMS Microbiol Lett 2018; 365:5230855. [DOI: 10.1093/femsle/fny275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 11/23/2018] [Indexed: 12/18/2022] Open
Affiliation(s)
- C R Harwood
- Centre for Bacterial Cell Biology, Newcastle University, Newcastle Upon Tyne, NE2 AX, UK
| | - S H Park
- Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50, UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan, Republic of Korea, 44919
| | - M Sauer
- Department of Biotechnology BOKU, University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Wien, Austria
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14
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Jeschek D, Steiger M, Mattanovich D, Sauer M. Phospholipid vesicles to determine the transport functionality of mitochondrial carrier proteins. N Biotechnol 2018. [DOI: 10.1016/j.nbt.2018.05.1017] [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: 11/16/2022]
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15
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Albrecht B, Steiger M, Mattanovich D, Sauer M. Enzyme scaffolding for metabolic engineering endeavors. N Biotechnol 2018. [DOI: 10.1016/j.nbt.2018.05.1014] [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: 11/28/2022]
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16
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Gassler T, Gasser B, Sauer M, Steiger M, Mattanovich D. Yeast biomass formation from carbon dioxide by rational metabolic engineering of Pichia pastoris. N Biotechnol 2018. [DOI: 10.1016/j.nbt.2018.05.1213] [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: 11/27/2022]
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17
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Walter T, Schlegel J, Burgert A, Kurz A, Seibel J, Sauer M. Incorporation studies of clickable ceramides in Jurkat cell plasma membranes. Chem Commun (Camb) 2018; 53:6836-6839. [PMID: 28597878 DOI: 10.1039/c7cc01220a] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The incorporation properties of ceramide analogues for click chemistry in Jurkat T cells were investigated. The analogues varied in the acyl chain length and the position of the functional group for click chemistry. Fluorescence microscopy studies including anisotropy and quenching experiments showed significant differences in the accessibility of the functional group indicating different incorporation properties into the plasma membrane.
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Affiliation(s)
- T Walter
- Institute for Organic Chemistry, Julius-Maximilians University Würzburg, Am Hubland C1, 97074 Würzburg, Germany.
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18
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Herold S, Sockel K, Sayehli C, Herbst R, Dührsen U, Oelschlägel U, Böttner A, Hindahl H, Kullmer J, Helas S, Sauer M, Mohr B, Mies A, Bornhäuser M, Ehninger G, Röllig C, Thiede C, Platzbecker U. Evolution of NPM1-negative therapy-related myelodysplastic syndromes following curative treatment of NPM1-mutant AML. Leukemia 2017; 31:2247-2251. [PMID: 28690314 DOI: 10.1038/leu.2017.217] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- S Herold
- Universitätsklinikum Carl Gustav Carus der TU Dresden, Medizinische Klinik und Poliklinik I, Dresden, Germany
| | - K Sockel
- Universitätsklinikum Carl Gustav Carus der TU Dresden, Medizinische Klinik und Poliklinik I, Dresden, Germany
| | - C Sayehli
- Klinik für Hämatologie und Onkologie, Universitätsklinikum Würzburg, Würzburg, Germany
| | - R Herbst
- Klinikum Chemnitz gGmbH, Klinik für Hämatologie/Onkologie, Chemnitz, Germany
| | - U Dührsen
- Universitätsklinikum Essen, Klinik für Hämatologie Essen, Essen, Germany
| | - U Oelschlägel
- Universitätsklinikum Carl Gustav Carus der TU Dresden, Medizinische Klinik und Poliklinik I, Dresden, Germany
| | - A Böttner
- Universitätsklinikum Carl Gustav Carus der TU Dresden, Medizinische Klinik und Poliklinik I, Dresden, Germany
| | - H Hindahl
- Klinik für Hämatologie und Onkologie, St Johannes Hospital, Dortmund, Germany
| | - J Kullmer
- DIAKO Bremen, Klinik für Hämatologie/Onkologie, Bremen, Germany
| | - S Helas
- Universitätsklinikum Carl Gustav Carus der TU Dresden, Medizinische Klinik und Poliklinik I, Dresden, Germany
| | - M Sauer
- Universitätsklinikum Carl Gustav Carus der TU Dresden, Medizinische Klinik und Poliklinik I, Dresden, Germany
| | - B Mohr
- Universitätsklinikum Carl Gustav Carus der TU Dresden, Medizinische Klinik und Poliklinik I, Dresden, Germany
| | - A Mies
- Universitätsklinikum Carl Gustav Carus der TU Dresden, Medizinische Klinik und Poliklinik I, Dresden, Germany
| | - M Bornhäuser
- Universitätsklinikum Carl Gustav Carus der TU Dresden, Medizinische Klinik und Poliklinik I, Dresden, Germany
| | - G Ehninger
- Universitätsklinikum Carl Gustav Carus der TU Dresden, Medizinische Klinik und Poliklinik I, Dresden, Germany
| | - C Röllig
- Universitätsklinikum Carl Gustav Carus der TU Dresden, Medizinische Klinik und Poliklinik I, Dresden, Germany
| | - C Thiede
- Universitätsklinikum Carl Gustav Carus der TU Dresden, Medizinische Klinik und Poliklinik I, Dresden, Germany.,German Cancer Consortium (DKTK), Dresden
| | - U Platzbecker
- Universitätsklinikum Carl Gustav Carus der TU Dresden, Medizinische Klinik und Poliklinik I, Dresden, Germany.,German Cancer Consortium (DKTK), Dresden
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Schillingmann D, Tischer S, Bollenbach A, Maecker-Kolhoff B, Sauer M, Blasczyk R, Immenschuh S, Eiz-Vesper B. Modulation of heme oxygenase-1 activity to enhance WT1-specific T-cell responses for immunotherapeutic approaches. Cytotherapy 2017. [DOI: 10.1016/j.jcyt.2017.02.031] [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: 10/19/2022]
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20
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Neubauer O, Czymek G, Giesen B, Hüttemann PW, Sauer M, Schalt W, Schruff J. Design Features of the Tokamak TEXTOR. Fusion Science and Technology 2017. [DOI: 10.13182/fst05-a689] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- O. Neubauer
- Institut für Plasmaphysik, Forschungszentrum Jülich GmbH EURATOM Association, Trilateral Euregio Cluster, D-52425 Jülich, Germany
| | - G. Czymek
- Institut für Plasmaphysik, Forschungszentrum Jülich GmbH EURATOM Association, Trilateral Euregio Cluster, D-52425 Jülich, Germany
| | - B. Giesen
- Institut für Plasmaphysik, Forschungszentrum Jülich GmbH EURATOM Association, Trilateral Euregio Cluster, D-52425 Jülich, Germany
| | - P. W. Hüttemann
- Institut für Plasmaphysik, Forschungszentrum Jülich GmbH EURATOM Association, Trilateral Euregio Cluster, D-52425 Jülich, Germany
| | - M. Sauer
- Institut für Plasmaphysik, Forschungszentrum Jülich GmbH EURATOM Association, Trilateral Euregio Cluster, D-52425 Jülich, Germany
| | - W. Schalt
- Institut für Plasmaphysik, Forschungszentrum Jülich GmbH EURATOM Association, Trilateral Euregio Cluster, D-52425 Jülich, Germany
| | - J. Schruff
- Institut für Plasmaphysik, Forschungszentrum Jülich GmbH EURATOM Association, Trilateral Euregio Cluster, D-52425 Jülich, Germany
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21
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Jung LA, Gebhardt A, Koelmel W, Ade CP, Walz S, Kuper J, von Eyss B, Letschert S, Redel C, d'Artista L, Biankin A, Zender L, Sauer M, Wolf E, Evan G, Kisker C, Eilers M. OmoMYC blunts promoter invasion by oncogenic MYC to inhibit gene expression characteristic of MYC-dependent tumors. Oncogene 2017; 36:1911-1924. [PMID: 27748763 DOI: 10.1038/onc.2016.354] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 07/15/2016] [Accepted: 08/15/2016] [Indexed: 01/01/2023]
Abstract
MYC genes have both essential roles during normal development and exert oncogenic functions during tumorigenesis. Expression of a dominant-negative allele of MYC, termed OmoMYC, can induce rapid tumor regression in mouse models with little toxicity for normal tissues. How OmoMYC discriminates between physiological and oncogenic functions of MYC is unclear. We have solved the crystal structure of OmoMYC and show that it forms a stable homodimer and as such recognizes DNA in the same manner as the MYC/MAX heterodimer. OmoMYC attenuates both MYC-dependent activation and repression by competing with MYC/MAX for binding to chromatin, effectively lowering MYC/MAX occupancy at its cognate binding sites. OmoMYC causes the largest decreases in promoter occupancy and changes in expression on genes that are invaded by oncogenic MYC levels. A signature of OmoMYC-regulated genes defines subgroups with high MYC levels in multiple tumor entities and identifies novel targets for the eradication of MYC-driven tumors.
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Affiliation(s)
- L A Jung
- Theodor Boveri Institute, Biocenter, University of Würzburg, Würzburg, Germany
- Rudolf Virchow Center for Experimental Biomedicine, University of Würzburg, Würzburg, Germany
| | - A Gebhardt
- Theodor Boveri Institute, Biocenter, University of Würzburg, Würzburg, Germany
| | - W Koelmel
- Rudolf Virchow Center for Experimental Biomedicine, University of Würzburg, Würzburg, Germany
| | - C P Ade
- Theodor Boveri Institute, Biocenter, University of Würzburg, Würzburg, Germany
| | - S Walz
- Comprehensive Cancer Center, Core Unit Bioinformatics, Biocenter, Würzburg, Germany
| | - J Kuper
- Rudolf Virchow Center for Experimental Biomedicine, University of Würzburg, Würzburg, Germany
| | - B von Eyss
- Theodor Boveri Institute, Biocenter, University of Würzburg, Würzburg, Germany
| | - S Letschert
- Department of Biotechnology and Biophysics, Biocenter, University of Würzburg, Würzburg, Germany
| | - C Redel
- Theodor Boveri Institute, Biocenter, University of Würzburg, Würzburg, Germany
| | - L d'Artista
- Division of Translational Gastrointestinal Oncology, Department of Internal Medicine I, University of Tübingen, Tübingen, Germany
| | - A Biankin
- Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Switchback Road, Bearsden, Glasgow, UK
- West of Scotland Pancreatic Unit, Glasgow Royal Infirmary, Glasgow, UK
- South Western Sydney Clinical School, Faculty of Medicine, University of NSW, Liverpool, New South Wales, Australia
| | - L Zender
- Division of Translational Gastrointestinal Oncology, Department of Internal Medicine I, University of Tübingen, Tübingen, Germany
| | - M Sauer
- Department of Biotechnology and Biophysics, Biocenter, University of Würzburg, Würzburg, Germany
| | - E Wolf
- Theodor Boveri Institute, Biocenter, University of Würzburg, Würzburg, Germany
| | - G Evan
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - C Kisker
- Rudolf Virchow Center for Experimental Biomedicine, University of Würzburg, Würzburg, Germany
| | - M Eilers
- Theodor Boveri Institute, Biocenter, University of Würzburg, Würzburg, Germany
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22
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Sauer M, Strölin P, Salomon G, Budäus L, Adam G, Beyersdorff D. Wert der multiparametrischen Prostata MRT bei Patienten mit Gleason 3+3 Stanzbiopsie unter Active Surveillance oder vor radikaler Prostatektomie. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- M Sauer
- Universitätsklinikum Hamburg Eppendorf, Diagnostische und interventionelle Radiologie und Nuklearmedizin, Hamburg
| | - P Strölin
- Martini Klinik, Universitätsklinikum Hamburg Eppendorf, Hamburg
| | - G Salomon
- Martini Klinik, Universitätsklinikum Hamburg Eppendorf, Hamburg
| | - L Budäus
- Universitätsklinikum Hamburg Eppendorf, Martini Klinik, Hamburg
| | - G Adam
- Universitätsklinikum Hamburg Eppendorf, Diagnostische und interventionelle Radiologie und Nuklearmedizin, Hamburg
| | - D Beyersdorff
- Universitätsklinikum Hamburg Eppendorf, Diagnostische und interventionelle Radiologie und Nuklearmedizin, Hamburg
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Weinrich J, Roland D, Sauer M, Frank Oliver H, Meywald-Walter K, Adam G, Bannas P. Thorax-Röntgenuntersuchung von Flüchtlingen: eine Notwendigkeit? ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- J Weinrich
- Zentrum für Radiologie und Endoskopie des Universitätsklinikums Hamburg-Eppendorf, Klinik und Poliklinik für Diagnostische und Interventionelle Radiologie und Nuklearmedizin, Hamburg
| | - D Roland
- LungenClinic Großhansdorf, Pneumologie, Hamburg
| | - M Sauer
- Zentrum für Radiologie und Endoskopie des Universitätsklinikums Hamburg-Eppendorf, Klinik und Poliklinik für Diagnostische und Interventionelle Radiologie und Nuklearmedizin, Hamburg
| | - H Frank Oliver
- Zentrum für Radiologie und Endoskopie des Universitätsklinikums Hamburg-Eppendorf, Klinik und Poliklinik für Diagnostische und Interventionelle Radiologie und Nuklearmedizin, Hamburg
| | | | - G Adam
- Zentrum für Radiologie und Endoskopie des Universitätsklinikums Hamburg-Eppendorf, Klinik und Poliklinik für Diagnostische und Interventionelle Radiologie und Nuklearmedizin, Hamburg
| | - P Bannas
- Zentrum für Radiologie und Endoskopie des Universitätsklinikums Hamburg-Eppendorf, Klinik und Poliklinik für Diagnostische und Interventionelle Radiologie und Nuklearmedizin, Hamburg
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24
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Sauer M, Weinrich J, Salomon G, Tennstedt P, Adam G, Beyersdorff D. Die präoperative Vorhersagegenauigkeit der multiparametrischen Prostata-MRT in der Detektion der Gefäßnervenbündel-Infiltration mithilfe von PI-RADS Version 2. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- M Sauer
- Universitätsklinikum Hamburg Eppendorf, Diagnostische und interventionelle Radiologie und Nuklearmedizin, Hamburg
| | - J Weinrich
- Universitätsklinikum Hamburg Eppendorf, Diagnostische und interventionelle Radiologie und Nuklearmedizin, Hamburg
| | - G Salomon
- Universitätsklinikum Hamburg Eppendorf, Martini Klinik, Hamburg
| | - P Tennstedt
- Universitätsklinikum Hamburg Eppendorf, Martini Klinik, Hamburg
| | - G Adam
- Universitätsklinikum Hamburg Eppendorf, Diagnostische und interventionelle Radiologie und Nuklearmedizin, Hamburg
| | - D Beyersdorff
- Universitätsklinikum Hamburg Eppendorf, Diagnostische und interventionelle Radiologie und Nuklearmedizin, Hamburg
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25
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Doss S, Potschka H, Doss F, Mitzner S, Mitzner S, Sauer M, Sauer M. Human hepatocytes as a tool for hepatotoxicity-testing. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.1986] [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: 10/21/2022]
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26
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Sauer M, Degen O, Beyersdorff D. BCG-assoziierte Urogenitaltuberkulose nach Harnblasenkarzinom. ROFO-FORTSCHR RONTG 2016; 188:782-3. [DOI: 10.1055/s-0042-105518] [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: 10/21/2022]
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27
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Sauer M, Singh A, Privor-Dumm L. Policy options for state-based PCV rollout in India: The evidence base. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.388] [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: 10/22/2022] Open
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28
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Reuschenbach M, Wagner S, Würdemann N, Sharma SJ, Prigge ES, Sauer M, Wittig A, Wittekindt C, von Knebel Doeberitz M, Klussmann JP. [Human papillomavirus and squamous cell cancer of the head and neck region : Prognostic, therapeutic and prophylactic implications]. HNO 2016; 64:450-9. [PMID: 26864190 DOI: 10.1007/s00106-016-0123-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Human papilloma viruses (HPV) are responsible for approximately half of all oropharyngeal squamous cell carcinomas (OPSCC) and incidence rates of HPV-associated OPSCC continue to increase substantially. The defined viral carcinogenesis permits development of specific diagnostic, therapeutic, and prophylactic approaches. Laboratory identification of HPV-associated OPSCC may be achieved by p16(INK4a) immunohistochemistry combined with HPV DNA detection by polymerase chain reaction (PCR) using tumor tissue. Patients with HPV-associated OPSCC have a relatively good prognosis; therefore, the HPV status plays an important role in patient guidance. Due to the relatively favorable prognosis, ongoing studies are evaluating whether less rigorous therapy for HPV-positive patients results in equally good cure rates. The criteria for patient selection are, however, still uncertain. Particularly markers for detection of HPV-positive patients with a high risk of treatment failure are lacking. Besides tumor stage and comorbidities, distinct genomic, epigenetic, and immunologic alterations are prognostically relevant for HPV-associated OPSCC, and might be of predictive value. Furthermore, the characteristic molecular alterations suggest the possibility of novel vigilant and specific therapy approaches. These may be inhibitors of the phosphatidylinositol 3‑kinase (PI3K) pathway, which is frequently activated in HPV-associated OPSCC, and immunotherapeutic methods, e. g., therapeutic vaccination. Although prophylactic HPV vaccinations may also prevent development of HPV-associated OPSCC, foreseeable effects on OPSCC incidence will be low, given the low vaccination rates in Germany. This highlights the fact that interdisciplinary research networks should enhance the necessary activities related to HPV-associated OPSCC.
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Affiliation(s)
- M Reuschenbach
- Abteilung für Angewandte Tumorbiologie, Institut für Pathologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Deutschland. .,The Human Papillomavirus Infection and Oropharyngeal Cancer Consortium (HOCC), .
| | - S Wagner
- The Human Papillomavirus Infection and Oropharyngeal Cancer Consortium (HOCC).,Klinik für HNO-Heilkunde, Kopf-, Halschirurgie, Universitätsklinikum Gießen, Justus-Liebig-Universität Gießen, Gießen, Deutschland
| | - N Würdemann
- The Human Papillomavirus Infection and Oropharyngeal Cancer Consortium (HOCC).,Klinik für HNO-Heilkunde, Kopf-, Halschirurgie, Universitätsklinikum Gießen, Justus-Liebig-Universität Gießen, Gießen, Deutschland
| | - S J Sharma
- The Human Papillomavirus Infection and Oropharyngeal Cancer Consortium (HOCC).,Klinik für HNO-Heilkunde, Kopf-, Halschirurgie, Universitätsklinikum Gießen, Justus-Liebig-Universität Gießen, Gießen, Deutschland
| | - E-S Prigge
- Abteilung für Angewandte Tumorbiologie, Institut für Pathologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Deutschland.,The Human Papillomavirus Infection and Oropharyngeal Cancer Consortium (HOCC)
| | - M Sauer
- Abteilung für Angewandte Tumorbiologie, Institut für Pathologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Deutschland.,The Human Papillomavirus Infection and Oropharyngeal Cancer Consortium (HOCC)
| | - A Wittig
- The Human Papillomavirus Infection and Oropharyngeal Cancer Consortium (HOCC).,Klinik für Strahlentherapie und Radioonkologie, Universitätsklinikum Gießen und Marburg, Philipps-Universität Marburg, Marburg, Deutschland
| | - C Wittekindt
- The Human Papillomavirus Infection and Oropharyngeal Cancer Consortium (HOCC).,Klinik für HNO-Heilkunde, Kopf-, Halschirurgie, Universitätsklinikum Gießen, Justus-Liebig-Universität Gießen, Gießen, Deutschland
| | - M von Knebel Doeberitz
- Abteilung für Angewandte Tumorbiologie, Institut für Pathologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Deutschland.,The Human Papillomavirus Infection and Oropharyngeal Cancer Consortium (HOCC)
| | - J P Klussmann
- The Human Papillomavirus Infection and Oropharyngeal Cancer Consortium (HOCC).,Klinik für HNO-Heilkunde, Kopf-, Halschirurgie, Universitätsklinikum Gießen, Justus-Liebig-Universität Gießen, Gießen, Deutschland
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Doß S, Potschka H, Doß F, Mitzner S, Sauer M. Cell-based hepatotoxicity-testing of systemic antimycotics. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.759] [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: 11/29/2022]
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Abstract
Hoarseness is a common phenomenon that can be caused by uncommon pathology. One seldom cause is Ortner's syndrome, a rare cardiovocal disease that can lead to hoarseness due to left recurrent laryngeal nerve palsy induced by mechanical compression of the nerve by cardiovascular structures. This case report describes a case of a 41-year-old woman with sudden onset of hoarseness. The patient had known pulmonary hypertension and Eisenmenger's syndrome.
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31
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Chao MM, Ebell W, Bader P, Beier R, Burkhardt B, Feuchtinger T, Handgretinger R, Hanenberg H, Koehl U, Kratz C, Kremens B, Lang P, Meisel R, Mueller I, Roessig C, Sauer M, Schlegel PG, Schulz A, Strahm B, Thol F, Sykora KW. Consensus of German transplant centers on hematopoietic stem cell transplantation in Fanconi anemia. Klin Padiatr 2015; 227:157-65. [PMID: 25985449 DOI: 10.1055/s-0035-1548841] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Allogeneic hematopoietic stem cell transplantation (HSCT) is currently the only curative therapy for the severe hematopoietic complications associated with Fanconi anemia (FA). In Germany, it is estimated that 10-15 transplants are performed annually for FA. However, because FA is a DNA repair disorder, standard conditioning regimens confer a high risk of excessive regimen-related toxicities and mortality, and reduced intensity regimens are linked with graft failure in some FA patients. Moreover, development of graft-versus-host disease is a major contributing factor for secondary solid tumors. The relative rarity of the disorder limits HSCT experience at any single center. Consensus meetings were convened to develop a national approach for HSCT in FA. This manuscript outlines current experience and knowledge about HSCT in FA and, based on this analysis, general recommendations reached at these meetings.
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Affiliation(s)
- M M Chao
- Pediatric Hematology/Oncology, Hannover Medical School, Hannover, Germany
| | - W Ebell
- Pediatric Hematology/Oncology and Stem Cell Transplantation, Charité University Medicine Berlin, Berlin, Germany
| | - P Bader
- Zentrum für Kinder- und Jugendmedizin, Klinikum der Johann-Wolfgang-Goethe-Universität, Klinik III, Frankfurt, Germany
| | - R Beier
- Pediatric Hematology/Oncology, Hannover Medical School, Hannover, Germany
| | - B Burkhardt
- Pediatric Hematology/Oncology, University of Muenster, Muenster, Germany
| | - T Feuchtinger
- Pediatric hematology/Oncology, University Children's Hospital Tuebingen, Tuebingen, Germany
| | - R Handgretinger
- Pediatric hematology/Oncology, University Children's Hospital Tuebingen, Tuebingen, Germany
| | - H Hanenberg
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - U Koehl
- Institute of Cellular Therapeutics, Hannover Medical School, GMP-DU, IFB-Tx, Hannover, Germany
| | - C Kratz
- Pediatric Hematology/Oncology, Hannover Medical School, Hannover, Germany
| | - B Kremens
- Paediatric Hematology and Oncology, Medical Center, University of Essen, Essen, Germany
| | - P Lang
- Pediatric hematology/Oncology, University Children's Hospital Tuebingen, Tuebingen, Germany
| | - R Meisel
- Department of Pediatric Hematology Oncology, University of Düsseldorf Medical School, Düsseldorf, Germany
| | - I Mueller
- Pediatric Hematologie/Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - C Roessig
- Pediatric Hematology/Oncology, University of Muenster, Muenster, Germany
| | - M Sauer
- Pediatric Hematology/Oncology, Hannover Medical School, Hannover, Germany
| | - P G Schlegel
- Childrens Hospitals, University of Würzburg, Germany
| | - A Schulz
- Univ.-Klinik für Kinder- und Jugendmedizin, Ulm, Germany
| | - B Strahm
- Pediatric Hematology and Oncology, University Freiburg, Freiburg, Germany
| | - F Thol
- Hematology/Onkology, Hannover Medical School, Hannover, Germany
| | - K W Sykora
- Pediatric Hematology/Oncology, Hannover Medical School, Hannover, Germany
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Vondran M, Mende M, Sauer M, Aydin MI, Bakhtiary F, Mohr F, Schroeter T. 064 * OUTCOME OF CARDIOSURGICAL PATIENTS INFLUENCED BY PARKINSON'S DISEASE. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu276.64] [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: 11/14/2022] Open
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33
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Hübner J, Hoseini S, Hapke M, Herbst J, Sürth J, Maul H, Schambach A, Brenner M, vd Brink M, Sauer M. A caspase gene-based security mechanism for potential leukemogenesis in human cord blood-derived T cell progenitors. Klin Padiatr 2014. [DOI: 10.1055/s-0034-1374839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Hoseini S, Hapke M, Herbst J, Heinz N, Schiedlmeyer B, Krüger A, Sauer M. Timely controlled T-cell receptor expression against a leukemia-associated antigen for the co-transplantation of MHC-mismatched T-cell precursors into hematopoietic stem cell recipients. Klin Padiatr 2014. [DOI: 10.1055/s-0034-1374840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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von Aspern K, Etz C, Seeburger J, Hoyer A, Girrbach F, Sauer M, Lehmkuhl L, Misfeld M, Mohr F. Graft failure two decades after a bentall procedure with HemiArch replacement. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1367163] [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: 10/25/2022]
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36
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Gavojdian D, Cziszter LT, Pacala N, Sauer M. Productive and reproductive performance of Dorper and its crossbreds under a Romanian semi-intensive management system. S AFR J ANIM SCI 2013. [DOI: 10.4314/sajas.v43i2.12] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Guerrasio R, Haberhauer-Troyer C, Steiger M, Sauer M, Mattanovich D, Koellensperger G, Hann S. Measurement uncertainty of isotopologue fractions in fluxomics determined via mass spectrometry. Anal Bioanal Chem 2013; 405:5133-46. [PMID: 23559335 DOI: 10.1007/s00216-013-6910-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 02/28/2013] [Accepted: 03/08/2013] [Indexed: 10/27/2022]
Abstract
Metabolic flux analysis implies mass isotopomer distribution analysis and determination of mass isotopologue fractions (IFs) of proteinogenic amino acids of cell cultures. In this work, for the first time, this type of analysis is comprehensively investigated in terms of measurement uncertainty by calculating and comparing budgets for different mass spectrometric techniques. The calculations addressed amino acids of Pichia pastoris grown on 10% uniformly (13)C labeled glucose. Typically, such experiments revealed an enrichment of (13)C by at least one order of magnitude in all proteinogenic amino acids. Liquid chromatography-time-of-flight mass spectrometry (LC-TOFMS), liquid chromatography-tandem mass spectrometry (LC-MS/MS) and gas chromatography-mass spectrometry (GC-MS) analyses were performed. The samples were diluted to fit the linear dynamic range of the mass spectrometers used (10 μM amino acid concentration). The total combined uncertainties of IFs as well as the major uncertainty contributions affecting the IFs were determined for phenylalanine, which was selected as exemplary model compound. A bottom-up uncertainty propagation was performed according to Quantifying Uncertainty in Analytical Measurement and using the Monte Carlo method by considering all factors leading to an IF, i.e., the process of measurement and the addition of (13)C-glucose. Excellent relative expanded uncertainties (k = 1) of 0.32, 0.75, and 0.96% were obtained for an IF value of 0.7 by LC-MS/MS, GC-MS, and LC-TOFMS, respectively. The major source of uncertainty, with a relative contribution of 20-80% of the total uncertainty, was attributed to the signal intensity (absolute counts) uncertainty calculated according to Poisson counting statistics, regardless which of the mass spectrometry platforms was used. Uncertainty due to measurement repeatability was of importance in LC-MS/MS, showing a relative contribution up to 47% of the total uncertainty, whereas for GC-MS and LC-TOFMS the average contribution was lower (30 and 15%, respectively). Moreover, the IF actually present also depends on the isotopic purity of the carbon sources. Therefore, in the uncertainty calculation a carbon source purity factor was introduced and a minor contribution to the total uncertainty was observed. The results obtained by uncertainty calculation performed according to the Monte Carlo method were in agreement with the uncertainty value of the Kragten approach and showed a Gaussian distribution.
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Affiliation(s)
- R Guerrasio
- Austrian Centre of Industrial Biotechnology, Muthgasse 11, 1190 Vienna, Austria
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Hoseini S, Hapke M, Herbst J, Heinz N, Schiedlmeyer B, Krüger A, Sauer M. Timely controlled T cell receptor expression against a leukemia-associated antigen for the co-transplantation of MHC-mismatched T-cell precursors into hematopoietic stem cell (HCT) recipients. Klin Padiatr 2012. [DOI: 10.1055/s-0032-1310489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Janík J, Malý V, Lazanská V, Stanek I, Sauer M. [Intrathoracic goitre--undiagnosed--nevertheless operated]. Rozhl Chir 2010; 89:663-665. [PMID: 21409797] [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] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A case review of a female patient, who was indicated for surgery for a goitre with minor bilateral retrosternal spread. The procedure included bilateral thyroidectomy during which the surgeon noticed unusual intrathoracic pathology in the left hemithorax, under the removed lobe. Postoperative chest x-ray and CT examinations revealed intrathoracic goitre, which was then removed during a following procedure. In the article, the authors discuss this uncommon pathology. Because of its uncommon location, the pathology was not detected on standard preoperative endocrinological examination. It was the follow up, postoperative examination, based on which the correct treatment was initiated.
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Affiliation(s)
- J Janík
- Chirurgická klinika, Masarykovy nemocnice o.z. Ustí nad Labem.
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Glocker EO, Kotlarz D, Boztug K, Gertz EM, Schäffer AA, Noyan F, Perro M, Diestelhorst J, Allroth A, Murugan D, Hätscher N, Pfeifer D, Sykora KW, Sauer M, Kreipe H, Lacher M, Nustede R, Woellner C, Baumann U, Salzer U, Koletzko S, Shah N, Segal AW, Sauerbrey A, Buderus S, Snapper SB, Grimbacher B, Klein C. Early-onset inflammatory bowel disease caused by mutant IL10 receptor. Lab Invest 2010. [PMCID: PMC3007730 DOI: 10.1186/1479-5876-8-s1-i12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Jacobs JG, Sauer M, van Keulen LJM, Tang Y, Bossers A, Langeveld JPM. Differentiation of ruminant transmissible spongiform encephalopathy isolate types, including bovine spongiform encephalopathy and CH1641 scrapie. J Gen Virol 2010; 92:222-32. [PMID: 20943889 DOI: 10.1099/vir.0.026153-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
With increased awareness of the diversity of transmissible spongiform encephalopathy (TSE) strains in the ruminant population, comes an appreciation of the need for improved methods of differential diagnosis. Exposure to bovine spongiform encephalopathy (BSE) has been associated with the human TSE, variant Creutzfeldt-Jakob disease, emphasizing the necessity in distinguishing low-risk TSE types from BSE. TSE type discrimination in ruminants such as cattle, sheep, goats and deer, requires the application of several prion protein (PrP)-specific antibodies in parallel immunochemical tests on brain homogenates or tissue sections from infected animals. This study uses in a single incubation step, three PrP-specific antibodies and fluorescent Alexa dye-labelled anti-mouse Fabs on a Western blot. The usual amount of brain tissue needed is 0.5 mg. This multiplex application of antibodies directed towards three different PrP epitopes enabled differential diagnosis of all established main features of classical scrapie, BSE and Nor98-like scrapie in sheep and goats, as well as the currently known BSE types C, H and L in cattle. Moreover, due to an antibody-dependent dual PrP-banding pattern, for the first time CH1641 scrapie of sheep can be reliably discriminated from the other TSE isolate types in sheep.
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Affiliation(s)
- J G Jacobs
- Department of Infection Biology, Central Veterinary Institute of Wageningen UR, PO Box 65, 8200 AB Lelystad, The Netherlands
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Seeger S, Bachteler G, Drexhage KH, Arden-Jacob J, Deltau G, Galla K, Han KT, Müller R, Köllner M, Rumphorst A, Sauer M, Schulz A, Wolfrum J. Biodiagnostics and Polymer Identification with Multiplex Dyes. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19930971208] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Abstract
In the recent past, single-molecule based localization or photoswitching microscopy methods such as stochastic optical reconstruction microscopy (STORM) or photoactivated localization microscopy (PALM) have been successfully implemented for subdiffraction-resolution fluorescence imaging. However, the computational effort needed to localize numerous fluorophores is tremendous, causing long data processing times and thereby limiting the applicability of the technique. Here we present a new computational scheme for data processing consisting of noise reduction, detection of likely fluorophore positions, high-precision fluorophore localization and subsequent visualization of found fluorophore positions in a super-resolution image. We present and benchmark different algorithms for noise reduction and demonstrate the use of non-maximum suppression to quickly find likely fluorophore positions in high depth and very noisy images. The algorithm is evaluated and compared in terms of speed, accuracy and robustness by means of simulated data. On real biological samples, we find that real-time data processing is possible and that super-resolution imaging with organic fluorophores of cellular structures with approximately 20 nm optical resolution can be completed in less than 10 s.
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Affiliation(s)
- S Wolter
- Applied Laser Physics & Laser Spectroscopy, Department of Physics, Bielefeld University, Universitätsstrasse 25, D-33615 Bielefeld, Germany
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Sauer M, Tews J, Weikmann J, Seeburger J, Krabbes S, Falk V, Mohr FW. Polymorphisms of the β1-adrenoceptor and COMT-enzyme have clinical implications in cardiac surgery. Thorac Cardiovasc Surg 2010. [DOI: 10.1055/s-0029-1247012] [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: 10/20/2022]
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Li L, Ferin M, Nakhuda G, Choi J, Sauer M, Lobo R. Dehydroepiandrosterone (DHEA) in follicular fluid (FF) correlates negatively with parameters of IVF outcomes. Fertil Steril 2009. [DOI: 10.1016/j.fertnstert.2009.07.1046] [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: 10/20/2022]
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Kempfert J, Anger K, Rastan A, Krabbes S, Lehmann S, Garbade J, Sauer M, Walther T, Dhein S, Mohr FW. Postoperative development of aspirin resistance following coronary artery bypass. Eur J Clin Invest 2009; 39:769-74. [PMID: 19674078 DOI: 10.1111/j.1365-2362.2009.02175.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Aspirin therapy is known to substantially reduce mortality and the rate of ischaemic complications after coronary artery bypass grafting (CABG). Rates of perioperative aspirin resistance cited in the literature are up to 50% and could be influenced by extracorporeal circulation. Thus, aspirin resistance after CABG may have a significant clinical relevance. MATERIALS AND METHODS In 59 patients undergoing CABG (on-pump, off-pump and combined procedures) aspirin resistance was investigated by arachidonic acid induced platelet aggregometry. Clinical relevance was assessed with 12-month follow up. RESULTS Two types of resistance were observed: A preoperative resistance (despite oral aspirin or in vitro addition) was present in 29% and a postoperative developing type was seen in 49% resulting in only 22% of patients with a 'normal' reaction to aspirin. If patients were already on oral aspirin at admission, the rate of resistance was significantly reduced. Off-pump surgery or pump-times exceeding 120 min had no significant impact on resistance. During the 12-month follow up (98.3%), there were three deaths (one stroke, one intestinal ischaemia, one mediastinitis after postoperative delirium) in patients with the perioperative resistance and none in other patients (P = 0.345). In none of those patients who presented with perioperative aspirin resistance, could this aspirin resistance be demonstrated when tested again after 12 months? CONCLUSIONS Aspirin resistance is a transient phenomenon present in the majority of patients undergoing CABG. The three deaths in the resistant group may - although not statistically significant - indicate the possibility of a worse outcome for patients with aspirin resistance.
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Affiliation(s)
- J Kempfert
- Department of Cardiac Surgery, Heartcenter, University of Leipzig, Leipzig, Germany.
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Mattanovich D, Graf A, Stadlmann J, Dragosits M, Redl A, Maurer M, Sauer M, Altmann F, Gasser B. Genome sequence, secretome and sugar transport of the protein production host Pichia pastoris. N Biotechnol 2009. [DOI: 10.1016/j.nbt.2009.06.680] [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: 10/20/2022]
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Li L, Thornton M, Sauer M. Feasibility of establishing a paid oocyte donation program for human embronic stem cell research. Fertil Steril 2009. [DOI: 10.1016/j.fertnstert.2009.07.1328] [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: 11/25/2022]
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