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Bossart M, Wagner M, Elvert R, Evers A, Hübschle T, Kloeckener T, Lorenz K, Moessinger C, Eriksson O, Velikyan I, Pierrou S, Johansson L, Dietert G, Dietz-Baum Y, Kissner T, Nowotny I, Einig C, Jan C, Rharbaoui F, Gassenhuber J, Prochnow HP, Agueusop I, Porksen N, Smith WB, Nitsche A, Konkar A. Effects on weight loss and glycemic control with SAR441255, a potent unimolecular peptide GLP-1/GIP/GCG receptor triagonist. Cell Metab 2022; 34:59-74.e10. [PMID: 34932984 DOI: 10.1016/j.cmet.2021.12.005] [Citation(s) in RCA: 79] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 08/13/2021] [Accepted: 12/06/2021] [Indexed: 12/16/2022]
Abstract
Unimolecular triple incretins, combining the activity of glucagon-like peptide-1 (GLP-1), glucose-dependent insulinotropic polypeptide (GIP), and glucagon (GCG), have demonstrated reduction in body weight and improved glucose control in rodent models. We developed SAR441255, a synthetic peptide agonist of the GLP-1, GCG, and GIP receptors, structurally based on the exendin-4 sequence. SAR441255 displays high potency with balanced activation of all three target receptors. In animal models, metabolic outcomes were superior to results with a dual GLP-1/GCG receptor agonist. Preclinical in vivo positron emission tomography imaging demonstrated SAR441255 binding to GLP-1 and GCG receptors. In healthy subjects, SAR441255 improved glycemic control during a mixed-meal tolerance test and impacted biomarkers for GCG and GIP receptor activation. Single doses of SAR441255 were well tolerated. The results demonstrate that integrating GIP activity into dual GLP-1 and GCG receptor agonism provides improved effects on weight loss and glycemic control while buffering the diabetogenic risk of chronic GCG receptor agonism.
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Affiliation(s)
- Martin Bossart
- Synthetic Medicinal Modalities, Integrated Drug Discovery Germany, Sanofi, Frankfurt, Germany.
| | - Michael Wagner
- Synthetic Medicinal Modalities, Integrated Drug Discovery Germany, Sanofi, Frankfurt, Germany
| | | | - Andreas Evers
- Synthetic Medicinal Modalities, Integrated Drug Discovery Germany, Sanofi, Frankfurt, Germany
| | | | | | - Katrin Lorenz
- Synthetic Medicinal Modalities, Integrated Drug Discovery Germany, Sanofi, Frankfurt, Germany
| | | | - Olof Eriksson
- Antaros Medical AB, Mölndal, Sweden; Science For Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
| | - Irina Velikyan
- Science For Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden; PET Centre, Centre for Medical Imaging, Uppsala University Hospital, Uppsala, Sweden
| | | | | | | | | | | | - Irene Nowotny
- Translational Medicine & Early Development, Sanofi, Frankfurt, Germany
| | | | - Christelle Jan
- Clinical Sciences & Operations, Sanofi, Chilly-Mazarin, France
| | - Faiza Rharbaoui
- Translational Medicine & Early Development, Sanofi, Frankfurt, Germany
| | | | | | | | | | - William B Smith
- NOCCR Alliance for Multispecialty Research (AMR), Knoxville, TN, USA
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Wilhelm-Benartzi CS, Miller SE, Bruggraber S, Picton D, Wilson M, Gatley K, Chhabra A, Marcovecchio ML, Hendriks AEJ, Morobé H, Chmura PJ, Bond S, Aschemeier-Fuchs B, Knip M, Tree T, Overbergh L, Pall J, Arnaud O, Haller MJ, Nitsche A, Schulte AM, Mathieu C, Mander A, Dunger D. Study protocol: Minimum effective low dose: anti-human thymocyte globulin (MELD-ATG): phase II, dose ranging, efficacy study of antithymocyte globulin (ATG) within 6 weeks of diagnosis of type 1 diabetes. BMJ Open 2021; 11:e053669. [PMID: 34876434 PMCID: PMC8655536 DOI: 10.1136/bmjopen-2021-053669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
INTRODUCTION Type 1 diabetes (T1D) is a chronic autoimmune disease, characterised by progressive destruction of the insulin-producing β cells of the pancreas. One immunosuppressive agent that has recently shown promise in the treatment of new-onset T1D subjects aged 12-45 years is antithymocyte globulin (ATG), Thymoglobuline, encouraging further exploration in lower age groups. METHODS AND ANALYSIS Minimal effective low dose (MELD)-ATG is a phase 2, multicentre, randomised, double-blind, placebo-controlled, multiarm parallel-group trial in participants 5-25 years diagnosed with T1D within 3-9 weeks of planned treatment day 1. A total of 114 participants will be recruited sequentially into seven different cohorts with the first cohort of 30 participants being randomised to placebo, 2.5 mg/kg, 1.5 mg/kg, 0.5 mg/kg and 0.1 mg/kg ATG total dose in a 1:1:1:1:1 allocation ratio. The next six cohorts of 12-15 participants will be randomised to placebo, 2.5 mg/kg, and one or two selected middle ATG total doses in a 1:1:1:1 or 1:1:1 allocation ratio, as dependent on the number of middle doses, given intravenously over two consecutive days. The primary objective will be to determine the changes in stimulated C-peptide response over the first 2 hours of a mixed meal tolerance test at 12 months for 2.5 mg/kg ATG arm vs the placebo. Conditional on finding a significant difference at 2.5 mg/kg, a minimally effective dose will be sought. Secondary objectives include the determination of the effects of a particular ATG treatment dose on (1) stimulated C-peptide, (2) glycated haemoglobin, (3) daily insulin dose, (4) time in range by intermittent continuous glucose monitoring measures, (5) fasting and stimulated dry blood spot (DBS) C-peptide measurements. ETHICS AND DISSEMINATION MELD-ATG received first regulatory and ethical approvals in Belgium in September 2020 and from the German and UK regulators as of February 2021. The publication policy is set in the INNODIA (An innovative approach towards understanding and arresting Type 1 diabetes consortium) grant agreement (www.innodia.eu). TRIAL REGISTRATION NUMBER NCT03936634; Pre-results.
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Affiliation(s)
| | - Sarah E Miller
- Department of Paediatrics, University of Cambridge, Cambridge, UK
- Cambridge Clinical Trials Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | | | - Diane Picton
- Department of Paediatrics, University of Cambridge, Cambridge, UK
| | - Mark Wilson
- Department of Paediatrics, University of Cambridge, Cambridge, UK
| | - Katrina Gatley
- Cambridge Clinical Trials Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Anita Chhabra
- Pharmacy, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | | | | | - Hilde Morobé
- Katholieke Universiteit Leuven/ Universitaire Ziekenhuizen, Leuven, Belgium
| | - Piotr Jaroslaw Chmura
- Center for Protein Research, Kobenhavns Universitet Sundhedsvidenskabelige Fakultet, Kobenhavn, Denmark
| | - Simon Bond
- Cambridge Clinical Trials Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Bärbel Aschemeier-Fuchs
- Diabetes Centre for Children and Adolescents, Children's Hospital Auf der Bult, Hannover, Germany
| | - Mikael Knip
- Research Program for Clinical and Molecular Metabolism, University of Helsinki Faculty of Medicine, Helsinki, Finland
- Pediatric Research Centre, University of Helsinki Children's Hospital, Helsinki, Finland
| | - Timothy Tree
- Department of Immunobiology, King's College London, London, UK
| | - Lut Overbergh
- Katholieke Universiteit Leuven/ Universitaire Ziekenhuizen, Leuven, Belgium
| | - Jaivier Pall
- INNODIA Patient Advisory Committee, Madrid, Spain
| | | | - Michael J Haller
- Department of Pediatrics, University of Florida, Gainesville, Florida, USA
| | | | | | - Chantal Mathieu
- Katholieke Universiteit Leuven/ Universitaire Ziekenhuizen, Leuven, Belgium
| | - Adrian Mander
- Centre for Trials Research, College of Biomedical and Life Sciences, Cardiff University, Cardiff, UK
| | - David Dunger
- Department of Paediatrics, University of Cambridge, Cambridge, UK
- Wellcome Trust-MRC Institute of Metabolic Science, Cambridge University, Cambridge, UK
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Brinkmann A, Hekimoğlu O, Dincer E, Hagedorn P, Nitsche A, Ergünay K. A metagenomic survey of ticks reveals pathogenic rickettsia and francisella/coxiella-like endosymbionts in Anatolia. Int J Infect Dis 2019. [DOI: 10.1016/j.ijid.2018.11.355] [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: 10/27/2022] Open
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Dias RA, Rocha F, Ulloa-Stanojlovic FM, Nitsche A, Castagna C, de Lucca T, Rodrigues RCA. Spatiotemporal distribution of a non-haematophagous bat community and rabies virus circulation: a proposal for urban rabies surveillance in Brazil. Epidemiol Infect 2019; 147:e130. [PMID: 30868985 PMCID: PMC6518535 DOI: 10.1017/s0950268818003229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 09/26/2018] [Accepted: 11/01/2018] [Indexed: 12/29/2022] Open
Abstract
In Brazil, rabies surveillance is based on monitoring domestic and wild animals, although the most prevalent lineage of the rabies virus (RABV) currently diagnosed in Brazil is associated with bats, particularly non-haematophagous bats. Disease control is based on the mass vaccination of dogs and cats. We used data collected by the passive surveillance system of the city of Campinas from 2011 to 2015, to describe the temporal and geographic distributions of the bat specimens and RABV and discuss the current rabies surveillance with the advent of the declaration of canine and feline rabies-free areas in Brazil. We described the species, locations and health statuses of the collected bat specimens. Moreover, all samples were submitted for RABV diagnosis. Then, we performed a time series decomposition for each bat family. Additionally, we determined the spatiotemporal relative risk for RABV infection using the ratio of the kernel-smoothed estimates of spatiotemporal densities of RABV-positive and RABV-negative bats. From the 2537 bat specimens, the most numerous family was Molossidae (72%), followed by Vespertilionidae (14%) and Phyllostomidae (13%). The bat families behaved differently in terms of seasonal and spatial patterns. The distribution of bats varied geographically in the urban environment, with Molossidae and Phyllostomidae being observed downtown and Vespertilionidae being observed in peripheral zones. Concurrently, a significant relative risk of RABV infection was observed downtown for Vespertilionidae and in peripheral zones for Molossidae. No RABV-positive sample clusters were observed. As a result of the official declaration of RABV-free areas in southern Brazil, mass dog and cat vaccinations are expected to halt in the near future. This stoppage would make most dog and cat populations susceptible to other RABV lineages, such as those maintained by non-haematophagous bats. In this scenario, all information available on bats and RABV distribution in urban areas is essential. Currently, few studies have been conducted. Some local health authorities, such as that in Campinas, are spontaneously basing their surveillance efforts on bat rabies, which is the alternative in reality scenario of increased susceptibility to bat-associated RABV that is developing in Brazil.
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Affiliation(s)
- R. A. Dias
- Department of Preventive Veterinary Medicine and Animal Health, School of Veterinary Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - F. Rocha
- Department of Preventive Veterinary Medicine and Animal Health, School of Veterinary Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - F. M. Ulloa-Stanojlovic
- Department of Preventive Veterinary Medicine and Animal Health, School of Veterinary Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - A. Nitsche
- Unidade de Vigilância de Zoonoses de Campinas, Prefeitura Municipal de Campinas, Campinas, Brazil
| | - C. Castagna
- Unidade de Vigilância de Zoonoses de Campinas, Prefeitura Municipal de Campinas, Campinas, Brazil
| | - T. de Lucca
- Vigilância em Saúde, Prefeitura Municipal de Campinas, Campinas, Brazil
| | - R. C. A. Rodrigues
- Unidade de Vigilância de Zoonoses de Campinas, Prefeitura Municipal de Campinas, Campinas, Brazil
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Romette JL, Prat CM, Gould EA, de Lamballerie X, Charrel R, Coutard B, Fooks AR, Bardsley M, Carroll M, Drosten C, Drexler JF, Günther S, Klempa B, Pinschewer D, Klimkait T, Avsic-Zupanc T, Capobianchi MR, Dicaro A, Ippolito G, Nitsche A, Koopmans M, Reusken C, Gorbalenya A, Raoul H, Bourhy H, Mettenleiter T, Reiche S, Batten C, Sabeta C, Paweska JT, Eropkin M, Zverev V, Hu Z, Mac Cullough S, Mirazimi A, Pradel F, Lieutaud P. The European Virus Archive goes global: A growing resource for research. Antiviral Res 2018; 158:127-134. [PMID: 30059721 PMCID: PMC7127435 DOI: 10.1016/j.antiviral.2018.07.017] [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] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 07/21/2018] [Accepted: 07/23/2018] [Indexed: 11/28/2022]
Abstract
The European Virus Archive (EVA) was created in 2008 with funding from the FP7-EU Infrastructure Programme, in response to the need for a coordinated and readily accessible collection of viruses that could be made available to academia, public health organisations and industry. Within three years, it developed from a consortium of nine European laboratories to encompass associated partners in Africa, Russia, China, Turkey, Germany and Italy. In 2014, the H2020 Research and Innovation Framework Programme (INFRAS projects) provided support for the transformation of the EVA from a European to a global organization (EVAg). The EVAg now operates as a non-profit consortium, with 26 partners and 20 associated partners from 21 EU and non-EU countries. In this paper, we outline the structure, management and goals of the EVAg, to bring to the attention of researchers the wealth of products it can provide and to illustrate how end-users can gain access to these resources. Organisations or individuals who would like to be considered as contributors are invited to contact the EVAg coordinator, Jean-Louis Romette, at jean-louis.romette@univmed.fr.
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Affiliation(s)
- J L Romette
- Unite des Virus Emergents (UVE: Aix Marseille Univ, IRD 190, INSERM 1207, IHU Méditerranée Infection), Marseille, France.
| | - C M Prat
- Unite des Virus Emergents (UVE: Aix Marseille Univ, IRD 190, INSERM 1207, IHU Méditerranée Infection), Marseille, France
| | - E A Gould
- Unite des Virus Emergents (UVE: Aix Marseille Univ, IRD 190, INSERM 1207, IHU Méditerranée Infection), Marseille, France
| | - X de Lamballerie
- Unite des Virus Emergents (UVE: Aix Marseille Univ, IRD 190, INSERM 1207, IHU Méditerranée Infection), Marseille, France
| | - R Charrel
- Unite des Virus Emergents (UVE: Aix Marseille Univ, IRD 190, INSERM 1207, IHU Méditerranée Infection), Marseille, France
| | - B Coutard
- Architectures et Fonctions, des Macromolécules, Biologiques, Marseille, France
| | - A R Fooks
- Animal and Plant Health Agency, Weybridge, United Kingdom
| | - M Bardsley
- Animal and Plant Health Agency, Weybridge, United Kingdom
| | - M Carroll
- Department of Health-Special Pathogens Laboratory, Porton Down, United Kingdom
| | - C Drosten
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Virology, 10117 Berlin, Germany
| | - J F Drexler
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Virology, 10117 Berlin, Germany
| | - S Günther
- Department of Virology, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - B Klempa
- Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - D Pinschewer
- Department of Pathology and Immunology, University of Bales, Switzerland
| | - T Klimkait
- Department of Pathology and Immunology, University of Bales, Switzerland
| | - T Avsic-Zupanc
- Institute of Microbiology and Immunology, Lubljana, Slovenia
| | | | - A Dicaro
- UOC, Istituto Nazionale Malattie Infettive Roma, Italy
| | - G Ippolito
- UOC, Istituto Nazionale Malattie Infettive Roma, Italy
| | - A Nitsche
- Robert Koch Institut, Berlin, Germany
| | - M Koopmans
- ERASMUS Medical Center, Rotterdam, The Netherlands
| | - C Reusken
- ERASMUS Medical Center, Rotterdam, The Netherlands
| | - A Gorbalenya
- Leiden University Medical Center, Leiden, The Netherlands
| | - H Raoul
- Laboratoire Merieux, INSERM, Lyon, France
| | | | - T Mettenleiter
- Friedrich Loeffler Institut, Greifswald-Insel Riems, Germany
| | - S Reiche
- Friedrich Loeffler Institut, Greifswald-Insel Riems, Germany
| | - C Batten
- The Pirbright Institute, Pirbright, United Kingdom
| | - C Sabeta
- Onderstepoort Veterinary Institute, Praetoria, South Africa
| | - J T Paweska
- National Institute for Communicable Diseases, Johannesburg, South Africa
| | - M Eropkin
- Research Institute of Influenza, St. Petersburg, Russia
| | - V Zverev
- Mechnikov Scientific Research Institute for Vaccines and Sera, Moscow, Russia
| | - Z Hu
- Wuhan Institute of Virology, Wuhan, China
| | - S Mac Cullough
- Australian Animal Health Laboratory, Geelong, Australia Disease, Johannesburg, South Africa
| | | | - F Pradel
- Fondation Mérieux, réseau GABRIEL, Lyon, France
| | - P Lieutaud
- Unite des Virus Emergents (UVE: Aix Marseille Univ, IRD 190, INSERM 1207, IHU Méditerranée Infection), Marseille, France
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Ergunay K, Litzba N, Brinkmann A, Gunay F, Kar S, Oter K, Orsten S, Alten B, Nitsche A, Linton YM. Characterization of a Culex theileri flavivirus variant in field-collected mosquitoes from Turkey. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.11.302] [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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Kohl C, Eldegail M, Mahmoud I, Schrick L, Radonic A, Emmerich P, Rieger T, Gunther S, Nitsche A, Osman A. Crimean congo hemorrhagic fever, 2013 and 2014 Sudan. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.11.027] [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] Open
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8
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Mayer M, Velez S, Zazzetti F, Galván L, Bennasar G, Carlevaris L, Secco A, Asnal C, Pucci P, Amitrano C, Nitsche A, Khoury M, Caeiro F, Benzaquén N, Pirola J, Colazo M, Rillo O, Papasidero S, Demarchi J, Raitti L, Tamborenea M, Santiago M, Alba P, Busamia B, Salvatierra G, Catalán Pellet A, Barreira J. AB0589 Involvement of Peripheral Nervous System in Primary SjÖgren Syndrome. a Gessar Analisys. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.1625] [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: 11/03/2022]
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9
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Crespo Amaya G, Secco A, Martire V, Marino L, Carlevaris L, Bennasar G, Mamani M, Mayer M, Zazzetti F, Velez S, Barreira J, Nitsche A, Asnal C, Crow C, Pucci P, Caeiro F, Benzaquen N, Pirola J, Colazo M, Rillo O, Papasidero S, Demarchi J, Tamborenea N, Santiago L, Raiti L, Gobbi C, Albiero E, Salvatierra G, Catalán Pellet A. AB0524 Immunosuppressive Treatment in Patients with Primary SjÖgren Syndrome (PSS). Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4231] [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: 11/04/2022]
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Molina M, Nitsche A, Gervilla A, Sansinanea P, Sarano J, Amitrano C, Pucci P, Mamani M, Oliver M, Scarafia S, Asnal C, Gallardo M. AB0672 Assessment of Hands and Mouth Disability in Systemic Sclerosis Patients. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2766] [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: 11/04/2022]
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Hobi S, Mueller RS, Hill M, Nitsche A, Löscher T, Guggemos W, Ständer S, Rjosk-Dendorfer D, Wollenberg A. Neurogenic inflammation and colliquative lymphadenitis with persistent orthopox virus DNA detection in a human case of cowpox virus infection transmitted by a domestic cat. Br J Dermatol 2015; 173:535-9. [PMID: 25641516 DOI: 10.1111/bjd.13700] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/06/2015] [Indexed: 11/29/2022]
Abstract
Cowpox viruses are orthopoxviruses that may survive in the environment for years. Rodents are regarded as the primary hosts, but transmission to other species has been reported. This report describes a cowpox virus infection in a cat with subsequent transmission to its owner leading to protracted, atypical and severe clinical signs. A young cat presented with multiple crusts and plaques on the neck, muzzle and tail base. The owner developed an erythematous lesion with elevated margins, central necrosis and crust formation below the left breast, a neurogenic inflammation, enlarged regional lymph nodes, a colliquative lymphadenitis and concomitant flu-like symptoms. Cultures were taken at the first visit from the cat's lesional skin and the patient's skin, and polymerase chain reaction with sequencing of the haemagglutinin region of both were positive for cowpox virus. The patient was treated with various antibiotics and methylprednisolone and was in clinical remission after 7 months.
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Affiliation(s)
- S Hobi
- Small Animal Medicine Clinic, Centre for Clinical Veterinary Medicine, Ludwig Maximilian University, Veterinärstrasse 13, 80539, Munich, Germany
| | - R S Mueller
- Small Animal Medicine Clinic, Centre for Clinical Veterinary Medicine, Ludwig Maximilian University, Veterinärstrasse 13, 80539, Munich, Germany
| | - M Hill
- Small Animal Medicine Clinic, Centre for Clinical Veterinary Medicine, Ludwig Maximilian University, Veterinärstrasse 13, 80539, Munich, Germany
| | - A Nitsche
- Robert Koch Institute, Consultant Laboratory for Pox Virus, Centre for Biologic Threats and Special Pathogens 1, Berlin, Germany
| | - T Löscher
- Department of Infectious Diseases and Tropical Medicine, University Hospital, Ludwig Maximilian University, Veterinärstrasse 13, 80539, Munich, Germany
| | - W Guggemos
- Department of Infectious Diseases and Tropical Medicine, Schwabing Hospital, Munich, Germany
| | - S Ständer
- Department of Dermatology, University of Münster, Münster, Germany
| | - D Rjosk-Dendorfer
- Department of Clinical Radiology, Ludwig Maximilian University, Veterinärstrasse 13, 80539, Munich, Germany
| | - A Wollenberg
- Department of Dermatology and Allergology, Ludwig Maximilian University, Veterinärstrasse 13, 80539, Munich, Germany
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Oliver M, Secco A, Gauna M, Puente D, Scarafia S, Carlevaris L, Bennasar G, Velez S, Zazetti F, Barreira J, Galván L, Caeiro F, Tamborenea N, Encinas L, Raiti L, Nitsche A, Pucci P, Crow C, Amitrano C, Asnal C, Papasidero S, Rillo O, Salvatierra G, Catalan Pellet A, Mamani M. FRI0429 Hypocomplementaemia in A Cohort of Patients with Primary Sjogren's Syndrome (Gessar Registry). Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.4511] [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: 11/04/2022]
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Velez S, Zazzetti F, Galván L, Gallacher A, Mayer M, Rivero M, Gomez A, Marina K, Duartes Noè D, Busamia B, Caeiro F, Encinas L, Pucci P, Amitrano C, Asnal C, Nitsche A, Santiago L, Tamborenea N, Salvatierra G, Papasidero S, Gauna M, Oliver M, Raiti L, Secco A, Laborde H, Rilla O, Catalán Pellet A, Barreira J. THU0028 Interstitial Lung Disease in Primary SjÖGren Syndrome: A Gessar Analisys. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2619] [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: 11/03/2022]
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Nitsche A, Amitrano C, Pucci P, Lescano A, Espíndola Echazú M, Seleme G, Molina M. AB0785 Incidence and treatments of digital and non-digital ulcers in 86 systemic sclerosis patients:. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.785] [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: 11/04/2022]
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Fernandez Nacul S, Secco A, Oliver M, Gauna M, Puente Trigo D, Santiago L, Catalan Pellet A, Velez S, Zazzetti F, Barreira J, Duarte Noe D, Pucci P, Amitrano C, Asnal C, Nitsche A, Cairo F, Haye Salinas M, Encinas L, Rillo O, Papasidero S, Tamborenea M, Raiti L, Hofman J, Salvatierra G, Albiero E. AB0429 Clinical manifestations and their association with the immunological profile of primary sjögren’s syndrome. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2751] [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: 11/03/2022]
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Nitsche A, Amitrano C, Pucci P, Lescano A. AB0786 Hand function and disability in patients with systemic sclerosis and digital ulcers:. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.786] [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: 11/04/2022]
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17
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Buchholz U, Müller MA, Nitsche A, Sanewski A, Wevering N, Bauer-Balci T, Bonin F, Drosten C, Schweiger B, Wolff T, Muth D, Meyer B, Buda S, Krause G, Schaade L, Haas W. Contact investigation of a case of human novel coronavirus infection treated in a German hospital, October-November 2012. Euro Surveill 2013; 18:20406. [PMID: 23449231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023] Open
Abstract
On 24 October 2012, a patient with acute respiratory distress syndrome of unknown origin and symptom onset on 5 October was transferred from Qatar to a specialist lung clinic in Germany. Late diagnosis on 20 November of an infection with the novel Coronavirus (NCoV) resulted in potential exposure of a considerable number of healthcare workers. Using a questionnaire we asked 123 identified contacts (120 hospital and three out-of-hospital contacts) about exposure to the patient. Eighty-five contacts provided blood for a serological test using a two-stage approach with an initial immunofluorescence assay as screening test, followed by recombinant immunofluorescence assays and a NCoV-specific serum neutralisation test. Of 123 identified contacts nine had performed aerosol-generating procedures within the third or fourth week of illness, using personal protective equipment rarely or never, and two of these developed acute respiratory illness. Serology was negative for all nine. Further 76 hospital contacts also tested negative, including two sera initially reactive in the screening test. The contact investigation ruled out transmission to contacts after illness day 20. Our two-stage approach for serological testing may be used as a template for similar situations.
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Buchholz U, Müller MA, Nitsche A, Sanewski A, Wevering N, Bauer-Balci T, Bonin F, Drosten C, Schweiger B, Wolff T, Muth D, Meyer B, Buda S, Krause G, Schaade L, Haas W. Contact investigation of a case of human novel coronavirus infection treated in a German hospital, October-November 2012. Euro Surveill 2013. [DOI: 10.2807/ese.18.08.20406-en] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
On 24 October 2012, a patient with acute respiratory distress syndrome of unknown origin and symptom onset on 5 October was transferred from Qatar to a specialist lung clinic in Germany. Late diagnosis on 20 November of an infection with the novel Coronavirus (NCoV) resulted in potential exposure of a considerable number of healthcare workers. Using a questionnaire we asked 123 identified contacts (120 hospital and three out-of-hospital contacts) about exposure to the patient. Eighty-five contacts provided blood for a serological test using a two-stage approach with an initial immunofluorescence assay as screening test, followed by recombinant immunofluorescence assays and a NCoV-specific serum neutralisation test. Of 123 identified contacts nine had performed aerosol-generating procedures within the third or fourth week of illness, using personal protective equipment rarely or never, and two of these developed acute respiratory illness. Serology was negative for all nine. Further 76 hospital contacts also tested negative, including two sera initially reactive in the screening test. The contact investigation ruled out transmission to contacts after illness day 20. Our two-stage approach for serological testing may be used as a template for similar situations.
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Affiliation(s)
- U Buchholz
- These authors contributed equally to this work
- Robert Koch Institute, Berlin, Germany
| | - M A Müller
- University Bonn, Department of Virology, Bonn, Germany
- These authors contributed equally to this work
| | - A Nitsche
- These authors contributed equally to this work
- Robert Koch Institute, Berlin, Germany
| | - A Sanewski
- County health department of Essen, Essen, Germany
- These authors contributed equally to this work
| | | | - T Bauer-Balci
- County health department Oberbergischer Kreis, Gummersbach, Germany
| | - F Bonin
- Ruhrland hospital, Essen, Germany
| | - C Drosten
- University Bonn, Department of Virology, Bonn, Germany
| | | | - T Wolff
- Robert Koch Institute, Berlin, Germany
| | - D Muth
- University Bonn, Department of Virology, Bonn, Germany
| | - B Meyer
- University Bonn, Department of Virology, Bonn, Germany
| | - S Buda
- Robert Koch Institute, Berlin, Germany
| | - G Krause
- Robert Koch Institute, Berlin, Germany
| | - L Schaade
- Robert Koch Institute, Berlin, Germany
| | - W Haas
- Robert Koch Institute, Berlin, Germany
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Corman VM, Müller MA, Costabel U, Timm J, Binger T, Meyer B, Kreher P, Lattwein E, Eschbach-Bludau M, Nitsche A, Bleicker T, Landt O, Schweiger B, Drexler JF, Osterhaus AD, Haagmans BL, Dittmer U, Bonin F, Wolff T, Drosten C. Assays for laboratory confirmation of novel human coronavirus (hCoV-EMC) infections. ACTA ACUST UNITED AC 2012; 17. [PMID: 23231891 DOI: 10.2807/ese.17.49.20334-en] [Citation(s) in RCA: 283] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We present a rigorously validated and highly sensitive confirmatory real-time RT-PCR assay (1A assay) that can be used in combination with the previously reported upE assay. Two additional RT-PCR assays for sequencing are described, targeting the RdRp gene (RdRpSeq assay) and N gene (NSeq assay), where an insertion/deletion polymorphism might exist among different hCoV-EMC strains. Finally, a simplified and biologically safe protocol for detection of antibody response by immunofluorescence microscopy was developed using convalescent patient serum.
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Affiliation(s)
- V M Corman
- Institute of Virology, University of Bonn Medical Centre, Bonn, Germany
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20
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Schupp CJ, Nitsche A, Bock-Hensley O, Böhm S, Flechtenmacher C, Kurth A, Saenger K, Hoferer M, Küsters U, Günther P, Engelmann G, Schnitzler P. A 14-year-old girl with a vesicle on her finger and lymphadenitis. J Clin Virol 2010; 50:1-3. [PMID: 20829104 DOI: 10.1016/j.jcv.2010.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Accepted: 08/09/2010] [Indexed: 11/16/2022]
Affiliation(s)
- C J Schupp
- Department of Pediatric Surgery, University of Heidelberg, Heidelberg, Germany
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21
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Junglen S, Kurth A, Kuehl H, Quan PL, Ellerbrok H, Pauli G, Nitsche A, Nunn C, Rich SM, Lipkin WI, Briese T, Leendertz FH. Examining landscape factors influencing relative distribution of mosquito genera and frequency of virus infection. Ecohealth 2009; 6:239-249. [PMID: 19915916 PMCID: PMC2841756 DOI: 10.1007/s10393-009-0260-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2008] [Revised: 09/22/2009] [Accepted: 09/22/2009] [Indexed: 05/28/2023]
Abstract
Mosquito-borne infections cause some of the most debilitating human diseases, including yellow fever and malaria, yet we lack an understanding of how disease risk scales with human-driven habitat changes. We present an approach to study variation in mosquito distribution and concomitant viral infections on the landscape level. In a pilot study we analyzed mosquito distribution along a 10-km transect of a West African rainforest area, which included primary forest, secondary forest, plantations, and human settlements. Variation was observed in the abundance of Anopheles, Aedes, Culex, and Uranotaenia mosquitoes between the different habitat types. Screening of trapped mosquitoes from the different habitats led to the isolation of five uncharacterized viruses of the families Bunyaviridae, Coronaviridae, Flaviviridae, and Rhabdoviridae, as well as an unclassified virus. Polymerase chain reaction screening for these five viruses in individual mosquitoes indicated a trend toward infection with specific viruses in specific mosquito genera that differed by habitat. Based on these initial analyses, we believe that further work is indicated to investigate the impact of anthropogenic landscape changes on mosquito distribution and accompanying arbovirus infection.
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Affiliation(s)
- S Junglen
- Research Group Emerging Zoonoses, Robert Koch-Institute, Berlin, Germany.
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22
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Greer RM, McErlean P, Arden KE, Faux CE, Nitsche A, Lambert SB, Nissen MD, Sloots TP, Mackay IM. Do rhinoviruses reduce the probability of viral co-detection during acute respiratory tract infections? J Clin Virol 2009; 45:10-5. [PMID: 19376742 PMCID: PMC7185458 DOI: 10.1016/j.jcv.2009.03.008] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2008] [Revised: 03/11/2009] [Accepted: 03/13/2009] [Indexed: 10/31/2022]
Abstract
BACKGROUND Human rhinoviruses (HRVs) are often concurrently detected with other viruses found in the respiratory tract because of the high total number of HRV infections occurring throughout the year. This feature has previously relegated HRVs to being considered passengers in acute respiratory infections. HRVs remain poorly characterized and are seldom included as a target in diagnostic panels despite their pathogenic potential, infection-associated healthcare expenditure and relatively unmoderated elicitation of an antiviral state. OBJECTIVES To test the hypothesis that respiratory viruses are proportionately more or less likely to co-occur, particularly the HRVs. STUDY DESIGN Retrospective PCR-based analyses of 1247 specimens for 17 viruses, including HRV strains, identified 131 specimens containing two or more targets. We investigated the proportions of co-detections and compared the proportion of upper vs. lower respiratory tract presentations in the HRV positive group. Both univariate contingency table and multivariate logistic regression analyses were conducted to identify trends of association among the viruses present in co-detections. RESULTS Many of the co-detections occurred in patterns. In particular, HRV detection was associated with a reduced probability of detecting human adenoviruses, coronaviruses, bocavirus, metapneumovirus, respiratory syncytial virus, parainfluenza virus, influenza A virus, and the polyomaviruses KIPyV and WUPyV (p < or = 0.05). No single HRV species nor cluster of particular strains predominated. CONCLUSIONS HRVs were proportionately under-represented among viral co-detections. For some period, HRVs may render the host less likely to be infected by other viruses.
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Affiliation(s)
- R M Greer
- School of Veterinary Science, University of Queensland, St Lucia, Queensland, Australia
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23
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Ulrich RG, Heckel G, Pelz HJ, Wieler LH, Nordhoff M, Dobler G, Freise J, Matuschka FR, Jacob J, Schmidt-Chanasit J, Gerstengarbe FW, Jäkel T, Süss J, Ehlers B, Nitsche A, Kallies R, Johne R, Günther S, Henning K, Grunow R, Wenk M, Maul LC, Hunfeld KP, Wölfel R, Schares G, Scholz HC, Brockmann SO, Pfeffer M, Essbauer SS. Nagetiere und Nagetierassoziierte Krankheitserreger. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2009; 52:352-69. [DOI: 10.1007/s00103-009-0798-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [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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24
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Stegaru-Hellring B, Nitsche A, Struwe O, Berlit P, Lipinski CG, Brittinger WD. Kardiale Befunde bei verschiedenen Formen der Muskeldystrophie und neurogenen Muskelatrophie im Kindes- und Jugendalter. Akt Neurol 2008. [DOI: 10.1055/s-2007-1020637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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Abstract
Cowpox has been enzootic in cattle for a long time. Over the past years, however, no cowpox virus infections of cattle were diagnosed in Germany. Instead, cowpox viruses are increasingly found in cats, which can develop lesions and secrete large amounts of virus.
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Affiliation(s)
- A Nitsche
- German Consultant Laboratory for Poxviruses, Centre for Biological Safety, Robert Koch-Institut (RKI), Berlin, Germany.
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26
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Wuertz S, Nitsche A, Jastroch M, Gessner J, Klingenspor M, Kirschbaum F, Kloas W. The role of the IGF-I system for vitellogenesis in maturing female sterlet, Acipenser ruthenus Linnaeus, 1758. Gen Comp Endocrinol 2007; 150:140-50. [PMID: 16945369 DOI: 10.1016/j.ygcen.2006.07.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2006] [Revised: 07/05/2006] [Accepted: 07/11/2006] [Indexed: 10/24/2022]
Abstract
Transition from previtellogeneic to vitellogenic oocyte growth is a critical phase for folliculogenesis in sturgeon and may often be postponed for several years. Recent findings on the involvement of insulin-like growth factor I (IGF-I) in cell differentiation processes of oocyte follicle and ovarian steroidogenesis of teleosts in vitro led to the hypothesis that paracrine IGF-I could function as a potential trigger in vivo. For the first time, IGF-I and its corresponding receptor (IGF-IR) were identified in a non-teleostean fish. Real-time PCR assays for IGF-I and IGF-IR mRNA were established, normalising mRNA expression of the target genes to beta-microglobulin (beta2m). We clearly show that expression of IGF-I in the gonad is a substantial source for IGF-I-mediated effects in follicles compared to liver, brain, muscle and adipose tissue. Among these tissues, IGF-IR mRNA was highest in the gonad. With regard to different cohorts of coexisting follicles, highest expression of IGF-I and IGF-IR were met in developing follicles, indicating that IGF-I functions as an intraovarian modulator of follicle faith. Comparing previtellogenic follicles in females that matured within two years with non-maturing females f the same age, revealed an increases of 2.3-fold for IGF-I and 2.8-fold for IGF-IR mRNA expression in maturing females. These findings implicate an important role of paracrine IGF-I in early vitellogenesis and identify it as candidate vitellogenesis inducing factor (VIF), determining the faith of the follicle.
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Affiliation(s)
- S Wuertz
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.
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27
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Schmid H, Boucherot A, Yasuda Y, Henger A, Brunner B, Eichinger F, Nitsche A, Kiss E, Bleich M, Gröne HJ, Nelson PJ, Schlöndorff D, Cohen CD, Kretzler M. Modular activation of nuclear factor-kappaB transcriptional programs in human diabetic nephropathy. Diabetes 2006; 55:2993-3003. [PMID: 17065335 DOI: 10.2337/db06-0477] [Citation(s) in RCA: 323] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Diabetic nephropathy (DN) is the leading cause of end-stage renal failure and a major risk factor for cardiovascular mortality in diabetic patients. To evaluate the multiple pathogenetic factors implicated in DN, unbiased mRNA expression screening of tubulointerstitial compartments of human renal biopsies was combined with hypothesis-driven pathway analysis. Expression fingerprints obtained from biopsies with histological diagnosis of DN (n = 13) and from control subjects (pretransplant kidney donors [n = 7] and minimal change disease [n = 4]) allowed us to segregate the biopsies by disease state and stage by the specific expression signatures. Functional categorization showed regulation of genes linked to inflammation in progressive DN. Pathway mapping of nuclear factor-kappaB (NF-kappaB), a master transcriptional switch in inflammation, segregated progressive from mild DN and control subjects by showing upregulation of 54 of 138 known NF-kappaB targets. The promoter regions of regulated NF-kappaB targets were analyzed using ModelInspector, and the NF-kappaB module NFKB_IRFF_01 was found to be specifically enriched in progressive disease. Using this module, the induction of eight NFKB_IRFF_01-dependant genes was correctly predicted in progressive DN (B2M, CCL5/RANTES, CXCL10/IP10, EDN1, HLA-A, HLA-B, IFNB1, and VCAM1). The identification of a specific NF-kappaB promoter module activated in the inflammatory stress response of progressive DN has helped to characterize upstream pathways as potential targets for the treatment of progressive renal diseases such as DN.
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Affiliation(s)
- Holger Schmid
- Division of Nephrology, Medizinische Poliklinik, University of Munich, Pettenkoferstr. 8a, 80336 Munich, Germany
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28
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Rastaldi MP, Armelloni S, Berra S, Calvaresi N, Corbelli A, Giardino LA, Li M, Wang GQ, Fornasieri A, Villa A, Heikkila E, Soliymani R, Boucherot A, Cohen CD, Kretzler M, Nitsche A, Ripamonti M, Malgaroli A, Pesaresi M, Forloni GL, Schlöndorff D, Holthofer H, D'Amico G. Glomerular podocytes contain neuron-like functional synaptic vesicles. FASEB J 2006; 20:976-8. [PMID: 16585060 DOI: 10.1096/fj.05-4962fje] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Although patients with chronic renal failure are increasing worldwide, many aspects of kidney biology remain to be elucidated. Recent research has uncovered several molecular properties of the glomerular filtration barrier, in which podocytes, highly differentiated, ramified cells that enwrap the glomerular basement membrane, have been reported to be mainly responsible for filter's selectivity. We previously described that podocytes express Rab3A, a GTPase restricted to cell types that are capable of highly regulated exocytosis, such as neuronal cells. Here, we first demonstrate by a proteomic study that Rab3A in podocytes coimmmunoprecipitates with molecules once thought to be synapse specific. We then show that podocytes possess structures resembling synaptic vesicles, which contain glutamate, coexpress Rab3A and synaptotagmin 1, and undergo spontaneous and stimulated exocytosis and recycling, with glutamate release. Finally, from the results of a cDNA microarray study, we describe the presence of a series of neuron- and synapse-specific molecules in normal human glomeruli and confirm the glomerular protein expression of both metabotropic and ionotropic glutamate receptors. These data point toward a synaptic-like mechanism of communication among glomerular cells, which perfectly fits with the molecular composition of the glomerular filter and puts in perspective several previous observations, proposing a different working hypothesis for understanding glomerular signaling dynamics.
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Affiliation(s)
- Maria Pia Rastaldi
- Renal Immunopathology Laboratory, Associazione Nuova Nefrologia and Fondazione D'Amico per la Ricerca sulle Malattie Renali, c/o San Carlo Borromeo Hospital, via Pio II, 3, Milan 20153, Italy.
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29
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Cohen CD, Klingenhoff A, Boucherot A, Nitsche A, Henger A, Brunner B, Schmid H, Merkle M, Saleem MA, Koller KP, Werner T, Gröne HJ, Nelson PJ, Kretzler M. Comparative promoter analysis allows de novo identification of specialized cell junction-associated proteins. Proc Natl Acad Sci U S A 2006; 103:5682-7. [PMID: 16581909 PMCID: PMC1421338 DOI: 10.1073/pnas.0511257103] [Citation(s) in RCA: 96] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Shared transcription factor binding sites that are conserved in distance and orientation help control the expression of gene products that act together in the same biological context. New bioinformatics approaches allow the rapid characterization of shared promoter structures and can be used to find novel interacting molecules. Here, these principles are demonstrated by using molecules linked to the unique functional unit of the glomerular slit diaphragm. An evolutionarily conserved promoter model was generated by comparative genomics in the proximal promoter regions of the slit diaphragm-associated molecule nephrin. Phylogenetic promoter fingerprints of known elements of the slit diaphragm complex identified the nephrin model in the promoter region of zonula occludens-1 (ZO-1). Genome-wide scans using this promoter model effectively predicted a previously unrecognized slit diaphragm molecule, cadherin-5. Nephrin, ZO-1, and cadherin-5 mRNA showed stringent coexpression across a diverse set of human glomerular diseases. Comparative promoter analysis can identify regulatory pathways at work in tissue homeostasis and disease processes.
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Affiliation(s)
- Clemens D. Cohen
- *Medizinische Poliklinik, University of Munich, 80336 Munich, Germany
| | | | - Anissa Boucherot
- *Medizinische Poliklinik, University of Munich, 80336 Munich, Germany
| | | | - Anna Henger
- *Medizinische Poliklinik, University of Munich, 80336 Munich, Germany
| | | | - Holger Schmid
- *Medizinische Poliklinik, University of Munich, 80336 Munich, Germany
| | - Monika Merkle
- *Medizinische Poliklinik, University of Munich, 80336 Munich, Germany
| | - Moin A. Saleem
- Children’s Renal Unit, University of Bristol, Bristol BS10 5NB, United Kingdom; and
| | | | | | - Hermann-Josef Gröne
- Cellular and Molecular Pathology, German Cancer Research Center, 69120 Heidelberg, Germany
| | - Peter J. Nelson
- *Medizinische Poliklinik, University of Munich, 80336 Munich, Germany
- **To whom correspondence should be addressed at:
Medizinische Poliklinik, Ludwig-Maximilians-University, Pettenkoferstrasse 8a, 80336 Munich, Germany. E-mail:
| | - Matthias Kretzler
- *Medizinische Poliklinik, University of Munich, 80336 Munich, Germany
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30
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Kozian D, Proulle V, Nitsche A, Galitzine M, Martinez MC, Schumann B, Meyer D, Herrmann M, Freyssinet JM, Kerbiriou-Nabias D. Identification of genes involved in Ca2+ ionophore A23187-mediated apoptosis and demonstration of a high susceptibility for transcriptional repression of cell cycle genes in B lymphoblasts from a patient with Scott syndrome. BMC Genomics 2005; 6:146. [PMID: 16242039 PMCID: PMC1312317 DOI: 10.1186/1471-2164-6-146] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2005] [Accepted: 10/21/2005] [Indexed: 11/13/2022] Open
Abstract
Background In contrast to other agents able to induce apoptosis of cultured cells, Ca2+ ionophore A23187 was shown to elicit direct activation of intracellular signal(s). The phenotype of the cells derived from patients having the hemorrhagic disease Scott syndrome, is associated with an abnormally high proportion of apoptotic cells, both in basal culture medium and upon addition of low ionophore concentrations in long-term cultures. These features are presumably related to the mutation also responsible for the defective procoagulant plasma membrane remodeling. We analyzed the specific transcriptional re-programming induced by A23187 to get insights into the effect of this agent on gene expression and a defective gene regulation in Scott cells. Results The changes in gene expression upon 48 hours treatment with 200 nM A23187 were measured in Scott B lymphoblasts compared to B lymphoblasts derived from the patient's daughter or unrelated individuals using Affymetrix microarrays. In a similar manner in all of the B cell lines, results showed up-regulation of 55 genes, out of 12,000 represented sequences, involved in various pathways of the cell metabolism. In contrast, a group of 54 down-regulated genes, coding for histones and proteins involved in the cell cycle progression, was more significantly repressed in Scott B lymphoblasts than in the other cell lines. These data correlated with the alterations of the cell cycle phases in treated cells and suggested that the potent effect of A23187 in Scott B lymphoblasts may be the consequence of the underlying molecular defect. Conclusion The data illustrate that the ionophore A23187 exerts its pro-apoptotic effect by promoting a complex pattern of genetic changes. These results also suggest that a subset of genes participating in various steps of the cell cycle progress can be transcriptionally regulated in a coordinated fashion. Furthermore, this research brings a new insight into the defect in cultured Scott B lymphoblasts, leading to hypothesize that a mutated gene plays a role not only in membrane remodeling but also in signal transduction pathway(s) leading to altered transcriptional regulation of cell cycle genes.
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Affiliation(s)
- Detlef Kozian
- Aventis Pharma Germany (Sanofi-Aventis group), Therapeutic Department Thrombosis and Angiogenesis, Industriepark Hoechst, Building H831, 65926 Frankfurt, Germany
| | - Valérie Proulle
- INSERM Unité 143, Hôpital de Bicêtre, 80 rue du Général Leclerc, 94276 Le Kremlin-Bicêtre, France
| | - Almut Nitsche
- Aventis Pharma Germany (Sanofi-Aventis group), Therapeutic Department Thrombosis and Angiogenesis, Industriepark Hoechst, Building H831, 65926 Frankfurt, Germany
| | - Marie Galitzine
- INSERM Unité 143, Hôpital de Bicêtre, 80 rue du Général Leclerc, 94276 Le Kremlin-Bicêtre, France
| | - Marie-Carmen Martinez
- INSERM Unité 143, Hôpital de Bicêtre, 80 rue du Général Leclerc, 94276 Le Kremlin-Bicêtre, France
- Institut d'Hématologie et Immunologie, Faculté de Médecine, 4 rue Kirschleger, 67085 Strasbourg, France
| | - Beatrice Schumann
- Aventis Pharma Germany (Sanofi-Aventis group), Therapeutic Department Thrombosis and Angiogenesis, Industriepark Hoechst, Building H831, 65926 Frankfurt, Germany
| | - Dominique Meyer
- INSERM Unité 143, Hôpital de Bicêtre, 80 rue du Général Leclerc, 94276 Le Kremlin-Bicêtre, France
| | - Matthias Herrmann
- Aventis Pharma Germany (Sanofi-Aventis group), Therapeutic Department Thrombosis and Angiogenesis, Industriepark Hoechst, Building H831, 65926 Frankfurt, Germany
| | - Jean-Marie Freyssinet
- INSERM Unité 143, Hôpital de Bicêtre, 80 rue du Général Leclerc, 94276 Le Kremlin-Bicêtre, France
- Institut d'Hématologie et Immunologie, Faculté de Médecine, 4 rue Kirschleger, 67085 Strasbourg, France
| | - Danièle Kerbiriou-Nabias
- INSERM Unité 143, Hôpital de Bicêtre, 80 rue du Général Leclerc, 94276 Le Kremlin-Bicêtre, France
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31
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Hattermann K, Müller MA, Nitsche A, Wendt S, Donoso Mantke O, Niedrig M. Susceptibility of different eukaryotic cell lines to SARS-coronavirus. Arch Virol 2005; 150:1023-31. [PMID: 15645376 PMCID: PMC7086824 DOI: 10.1007/s00705-004-0461-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2004] [Accepted: 11/01/2004] [Indexed: 11/02/2022]
Abstract
In order to define and characterize target cells of SARS-coronavirus (SARS-CoV) we studied the susceptibility of 23 different permanent and primary eukaryotic cell lines to SARS-coronavirus. Beneath Vero E6 cells SARS- Coronavirus infection could also be demonstrated in two pig cell lines (POEK, PS) and one human cell line (Huh-7) using the indirect immunofluorescence assay and a newly established quantitative real-time PCR. In all susceptible cell lines mRNA of the Angiotensin-converting enzyme 2 (ACE2), the functional receptor for SARS-CoV infection, could be detected by RT-PCR. Our results show that there is a correlation between the abundance of ACE2 mRNA and SARS-CoV susceptibility.
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Affiliation(s)
- K Hattermann
- Robert Koch-Institut, Center for Biological Safety 1, Berlin, Germany
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Schetelig J, Oswald O, Steuer N, Radonic A, Thulke S, Held TK, Oertel J, Nitsche A, Siegert W. Cytomegalovirus infections in allogeneic stem cell recipients after reduced-intensity or myeloablative conditioning assessed by quantitative PCR and pp65-antigenemia. Bone Marrow Transplant 2003; 32:695-701. [PMID: 13130317 DOI: 10.1038/sj.bmt.1704164] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Since the incidence of cytomegalovirus (CMV) infections after hematopoietic stem cell transplantation (HSCT) may depend on the intensity of the pretreatment, we studied the incidence of CMV infections after reduced-intensity compared to myeloablative conditioning. A total of 82 patients with matched related or unrelated donors were prospectively monitored for CMV infections after HSCT by CMV-PCR techniques, CMV-antigenemia and clinical observation. A total of 45 patients received reduced-intensity conditioning consisting of fludarabine, busulfan and ATG and 37 patients received myeloablative conditioning. Leukocyte engraftment occurred after a median of 15 vs 18 days (P=0.012) and platelet engraftment after 12 days vs 20 days (P=0.001), respectively. Acute graft-versus-host disease (GVHD) grade II-IV was observed in 58 vs 54% patients (P=0.737), respectively. The onset and peak values of CMV-antigenemia and DNAemia and the incidence of CMV infections did not differ statistically significantly between the two treatment groups. Multivariate analysis confirmed CMV seropositivity of the recipient (P=0.035), acute GVHD II-IV (P=0.001) but not the type of conditioning as significant risk factors for CMV-antigenemia. In conclusion, the kinetics of CMV-antigenemia and DNAemia and the incidence of CMV infections were not statistically different in patients who received HSCT after reduced-intensity conditioning with fludarabine, busulfan and ATG compared to myeloablative conditioning.
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Affiliation(s)
- J Schetelig
- Charité Campus Virchow Klinikum, Humboldt-Universität zu Berlin, Medizinische Klinik m.S. Hämatologie und Onkologie, Berlin, Germany
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Becker M, Nitsche A, Neumann C, Aumann J, Junghahn I, Fichtner I. Sensitive PCR method for the detection and real-time quantification of human cells in xenotransplantation systems. Br J Cancer 2002; 87:1328-35. [PMID: 12439725 PMCID: PMC2408903 DOI: 10.1038/sj.bjc.6600573] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2002] [Revised: 08/05/2002] [Accepted: 08/15/2002] [Indexed: 11/20/2022] Open
Abstract
The sensitive detection of human cells in immunodeficient rodents is a prerequisite for the monitoring of micrometastasis of solid tumours, dissemination of leukaemic cells, or engraftment of haematological cells. We developed a universally applicable polymerase chain reaction method for the detection of a human-specific 850-bp fragment of the alpha-satellite DNA on human chromosome 17. The method allows the detection of one human cell in 10(6) murine cells and could be established as both, a conventional DNA polymerase chain reaction-assay for routine screening, and a quantitative real-time polymerase chain reaction-assay using TaqMan-methodology. It was applied to the following xenotransplantation systems in SCID and NOD/SCID mice: (1) In a limiting dilution assay, cells of the MDA-MB 435 breast carcinoma were injected into the mammary fat pad of NOD/SCID mice. It could be shown that 10 cells mouse(-1) were sufficient to induce a positive polymerase chain reaction signal in liver and lung tissue 30 days after transplantation as an indicator for micrometastasis. At this time a palpable tumour was not yet detectable in the mammary fat pad region. (2) Cells of a newly established human acute lymphatic leukaemia were administered intraperitoneally to SCID mice. These cells apparently disseminated and were detectable as early as day 50 in the peripheral blood of living mice, while the leukaemia manifestation was delayed by day 140. (3) In a transplantation experiment using mature human lymphocytes we wanted to standardise conditions for a successful survival of these cells in NOD/SCID mice. It was established that at least 5 x 10(7) cells given intravenously were necessary and that the mice had to be conditioned by 2 Gy body irradiation to get positive polymerase chain reaction bands in several organs. (4) Engraftment studies with blood stem cells originating from cytapheresis samples of tumour patients or from cord blood were undertaken in NOD/SCID mice in order to define conditions of successful engraftment and to use this model for further optimisation strategies. The polymerase chain reaction method presented allowed a reliable prediction of positive engraftment and agreed well with the results of immunohistochemical or FACS analysis. All together, the polymerase chain reaction method developed allows a sensitive and reliable detection of low numbers of human cells in immunodeficient hosts. In combination with real-time (TaqMan) technique it allows an exact quantification of human cells. As this method can be performed with accessible material of living animals, follow up studies for the monitoring of therapeutic interventions are possible in which the survival time of mice as evaluation criteria can be omitted.
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Affiliation(s)
- M Becker
- Max-Delbrück-Center for Molecular Medicine, Robert-Rössle-Strasse 10, 13092 Berlin, Germany
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Finny GJ, Mathews V, Abraham P, Abraham M, Chandy M, Srivastava A, Nitsche A, Siegert W, Sridharan G. A pilot study on the role of cytomegalovirus & human herpesvirus-6 infections in Indian bone marrow transplant recipients. Indian J Med Res 2001; 114:39-46. [PMID: 11785448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
BACKGROUND & OBJECTIVES Studies from Western transplant centers have shown the importance of cytomegalovirus (CMV) in infections among immunosuppressed post-transplant patients (both solid and bone marrow transplant recipients). Human herpesvirus-6 (HHV-6) infection is also important. Since such data are lacking from India, we carried out a pilot study to investigate the role of these two viruses in infections among Indian allogeneic bone marrow transplant (BMT) recipients. METHODS A total of 21 BMT patients who developed acute graft versus host disease (GVHD), two patients who developed chronic GVHD, and eight recipients who did not develop GVHD but had skin rash/elevated liver enzymes, persistent cytopaenia or interstitial pneumonitis with a high clinical suspicion of possible CMV association were studied for markers of CMV and HHV-6 infections. RESULTS CMV DNAemia was documented in 9 (42.8%) and CMV IgM in 4(19%) of the 21 patients with acute GVHD. HHV-6 DNAemia was not seen in any patient with acute GVHD but 2 (9.5%) had HHV-6 IgM. Of the 2 patients with chronic GVHD, 1 was positive for CMV DNA and IgM, and both were negative for HHV-6 markers. The lower incidence of CMV DNAemia in our recipients may be attributable to the presence of neutralizing antibody (anti gB/AD-1) among the 17 CMV and HHV-6 DNAemia negative recipients, 4(23.5%) had neutralizing antibodies (S/N ratio > or = 5). Of the 13 CMV DNAemia positive recipients, only one (7.7%) was positive for neutralizing antibodies. Among the 5 neutralizing antibody (S/N ratio > or = 5) positive recipients, 4 (80%) were negative for CMV DNAemia. The one nPCR positive was revealed only at high DNA (> 0.1 microgram) input indicating low CMV signal strength. INTERPRETATION & CONCLUSION The present study shows the use of DNAemia in detecting CMV infections among BMT recipients. All recipients had high avidity CMV IgG (AI > 50%) confirming CMV reactivation or reinfection in these patients. There was evidence from this study suggesting that neutralizing antibodies may play a role in controlling CMV reactivation. We found no significant HHV-6 association with GVHD in Indian allogeneic BMT recipients.
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Affiliation(s)
- G J Finny
- Department of Clinical Virology, Christian Medical College & Hospital, Vellore, India
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Nitsche A, Becker M, Junghahn I, Aumann J, Landt O, Fichtner I, Wittig B, Siegert W. Quantification of human cells in NOD/SCID mice by duplex real-time polymerase-chain reaction. Haematologica 2001; 86:693-9. [PMID: 11454523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023] Open
Abstract
BACKGROUND AND OBJECTIVES The aim of this study was the development of a fast and reliable polymerase chain reaction (PCR) assay which quantifies the proportion of human cells in immunodeficient chimeric mice, for example transplanted with human hematopoietic stem cells. DESIGN AND METHODS We developed a TaqMan chemistry-based, real-time duplex PCR assay to quantify human and murine DNA in a single-tube reaction in parallel (HUmu PCR). Two independent sets of primers and exonuclease probes, located in the tumor necrosis factor-a gene of both species, were selected to amplify specifically human and murine genomic DNA. Serial dilutions of defined numbers of human cells in mouse cells served to construct calibration curves. The test was applied to NOD/SCID mice transplanted with CD34(+) cells isolated from human cord blood and compared to FACS analysis. RESULTS Analysis of DNA from human cells diluted stepwise into a fixed number of murine cells - and vice versa - led to calibration curves with good correlation for human and murine cells (r(2)>0.99) with a detection limit of 2% human cells. Results obtained with the HUmu PCR paralleled those of FACS analysis. However, in contrast to FACS analysis, which requires fresh single cell suspensions, the HUmu PCR can be carried out on already stored samples, even from solid organs and, moreover, the quantity of material required for analysis is very low. INTERPRETATION AND CONCLUSIONS The HUmu PCR presented here is the first real-time PCR assay for simultaneous quantification of human and murine cells. It is extremely fast, accurate and is an interesting alternative method for quantifying the proportion of human DNA in organs of chimeric mice.
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Affiliation(s)
- A Nitsche
- Klinik für Innere Medizin m.S. Hämatologie und Onkologie, Charité Campus, Virchow Klinikum, Humboldt Universität zu Berlin, Germany
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Schmidt M, Hochhaus A, Nitsche A, Hehlmann R, Neubauer A. Expression of nuclear transcription factor interferon consensus sequence binding protein in chronic myeloid leukemia correlates with pretreatment risk features and cytogenetic response to interferon-α. Blood 2001; 97:3648-50. [PMID: 11369663 DOI: 10.1182/blood.v97.11.3648] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Recently, it was shown that interferon consensus sequence binding protein (ICSBP), a member of the interferon regulatory factor (IRF) family, has a potential role in chronic myeloid leukemia (CML). Deletion of ICSBP gene in mice leads to a CML-like syndrome and samples from CML patients exhibited impaired ICSBP expression. The present study found that ICSBP expression correlated with risk features determined by Sokal score in untreated CML (P = .007 for high versus low risk). In addition, analyzing ICSBP expression during interferon-α (IFN-α) therapy in “good” (n = 27) versus “poor” (n = 15) cytogenetic responders, high ICSBP levels were only observed in “good” responders (P = .0002). Together, these data suggest that ICSBP levels are related to initial presentation of CML and the therapeutic response of CML to IFN-α, indicating an important role of ICSBP in CML.
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Affiliation(s)
- M Schmidt
- Klinikum der Philipps-Universität Marburg, Zentrum Innere Medizin, Abteilung Hämatologie/Onkologie/Immunologie, Baldingerstrasse, 35043 Marburg, Germany
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Nitsche A, Müller CW, Radonic A, Landt O, Ellerbrok H, Pauli G, Siegert W. Human herpesvirus 6A DNA Is detected frequently in plasma but rarely in peripheral blood leukocytes of patients after bone marrow transplantation. J Infect Dis 2001; 183:130-3. [PMID: 11076708 DOI: 10.1086/317651] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2000] [Revised: 09/11/2000] [Indexed: 11/03/2022] Open
Abstract
A real-time quantitative polymerase chain reaction assay was devised to determine the load of human herpesvirus (HHV)-6A and -6B DNA in paired samples of plasma and peripheral blood leukocytes (PBL) of 25 bone marrow transplant patients. The assay detects HHV-6 DNA variants A and B in a linear range of 10(7)-10(1) genome equivalents per assay. Viral DNA was measured in 336 paired DNA PBL samples and in corresponding plasma samples. HHV-6A and/or -6B DNA was detected in PBL of 23 of 25 patients and in plasma of 24 of 25 patients. HHV-6B was the predominant variant found in PBL and also was detected in the corresponding plasma. Surprisingly, only 1 of 25 patients had detectable HHV-6A DNA in PBL, although 23 of 25 patients were positive for HHV-6A DNA in plasma. HHV-6 DNA load in plasma was significantly higher for HHV-6A than for HHV-6B (P=.0066).
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Affiliation(s)
- A Nitsche
- Klinik für Innere Medizin m.S. Hämatologie und Onkologie, Charité-Campus Virchow Klinikum, Humboldt Universität zu Berlin, Berlin, Germany
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Biel SS, Held TK, Landt O, Niedrig M, Gelderblom HR, Siegert W, Nitsche A. Rapid quantification and differentiation of human polyomavirus DNA in undiluted urine from patients after bone marrow transplantation. J Clin Microbiol 2000; 38:3689-95. [PMID: 11015385 PMCID: PMC87458 DOI: 10.1128/jcm.38.10.3689-3695.2000] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A combined PCR assay was developed for the detection and typing of human polyomavirus (huPoV) in clinical samples, consisting of (i) a qualitative seminested PCR assay (snPCR) to discriminate between huPoV BK and JC and (ii) a high-throughput, quantitative TaqMan PCR assay (TM-PCR) for the general detection of huPoV. The TM-PCR detects huPoV DNA in a linear range from 10(7) to 10(1) copies per assay. In reproducibility runs, the inter- and intra-assay variabilities were < or =60 and < or =50%, respectively. The snPCR assay uses a set of four primers for the same region of the BK and JC viral genomes. In the first round of amplification, two general primers were used; in the second round, one of these general primers and two additional, BK- or JC-specific primers were used simultaneously to produce amplicons of different sizes specific for BK virus (246 bp) and JC virus (199 bp), respectively. We tested different urine dilutions in order to determine the inhibitory effects of urine on PCR amplification. Furthermore, we compared the use of native urine with DNA purified by different preparation procedures. Our results show, that a 1:10 dilution of the urine led to complete reduction of the amplification inhibition found with 6% of undiluted urine samples. In a clinical study including 600 urine specimens, our assay turned out to be fast, cheap, and reliable in both qualitative and quantitative aspects.
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Affiliation(s)
- S S Biel
- Robert Koch-Institut, Charité Campus Virchow-Klinikum, Humboldt Universität zu Berlin, Germany
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Held TK, Biel SS, Nitsche A, Kurth A, Chen S, Gelderblom HR, Siegert W. Treatment of BK virus-associated hemorrhagic cystitis and simultaneous CMV reactivation with cidofovir. Bone Marrow Transplant 2000; 26:347-50. [PMID: 10967578 DOI: 10.1038/sj.bmt.1702487] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Hemorrhagic cystitis (HC) is a common complication following high-dose chemotherapy and bone marrow transplantation, and the treatment of virus-associated HC remains to be optimized. This is the first report on the successful use of cidofovir in a patient with HC and polyoma viruria concomitant with CMV reactivation after allogeneic BMT. Treatment led to a significant decrease in viruria and to sustained suppression of CMV reactivation. Administered with probenecid and hydration, cidofovir was well tolerated, and there were no side-effects.
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Affiliation(s)
- T K Held
- Klinik für Innere Medizin mit Schwerpunkt Hämatologie und Onkologie, Charité/Campus Virchow-Klinikum, Berlin, Germany
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Abstract
A real-time PCR assay was developed to quantify human cytomegalovirus (CMV) DNA. This assay was used to demonstrate a higher CMV DNA load in plasma of bone marrow transplant patients than in that of blood donors. The CMV load was higher in CMV antigen-positive patients than in antigen-negative patients.
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Affiliation(s)
- A Nitsche
- Klinik für Innere Medizin m.S. Hämatologie und Onkologie, Charité-Campus Virchow Klinikum, Humboldt Universität zu Berlin, Berlin, Germany
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Nitsche A, Steuer N, Schmidt CA, Landt O, Siegert W. Different real-time PCR formats compared for the quantitative detection of human cytomegalovirus DNA. Clin Chem 1999; 45:1932-7. [PMID: 10545062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
BACKGROUND The aim of this study was to compare the ABI PRISM 7700 Sequence Detection System and the LightCycler to develop a quantitative real-time PCR assay for the detection of human cytomegalovirus (HCMV) DNA suitable for routine hospital application. METHODS We used one exonuclease probe and five different hybridization probe sets as sequence-specific fluorescence detection formats. For the exonuclease assay and two hybridization probe sets, reproducibility and the detection limit were determined. To keep the total assay time to a minimum, we gradually shortened individual reaction steps on both instruments. RESULTS The exonuclease assay can be interchangeably performed on the 7700 and the LightCycler. No change of reaction conditions is required, except for the addition of bovine serum albumin to the LightCycler reaction. The shortest possible total assay time is 80 min for the ABI PRISM 7700 Sequence Detection System and 20 min for the LightCycler. When the LightCycler is used, the exonuclease probe can be replaced by a set of hybridization probes. All assays presented here detected HCMV DNA in a linear range from 10(1) to 10(7) HCMV genome equivalents/assay (r >0.995) with low intraassay (<5%) and interassay (<10%) variation. CONCLUSIONS The ABI PRISM 7700 Sequence Detection System as well as the LightCycler are useful instruments for rapid and precise online PCR detection. Moreover, the two principles of fluorescence signal production allow HCMV quantification with the same accuracy.
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Affiliation(s)
- A Nitsche
- Klinik für Innere Medizin m.S. Hämatologie und Onkologie, Charité-Campus Virchow Klinikum, Humboldt Universität, Augustenburger Platz 1, Forschungshaus 37 R 2.303, D-13353 Berlin, Germany.
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Kreuzer KA, Lass U, Landt O, Nitsche A, Laser J, Ellerbrok H, Pauli G, Huhn D, Schmidt CA. Highly sensitive and specific fluorescence reverse transcription-PCR assay for the pseudogene-free detection of beta-actin transcripts as quantitative reference. Clin Chem 1999; 45:297-300. [PMID: 9931059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- K A Kreuzer
- Department of Medicine, Division of Hematology/Oncology, Charité-Virchow-Klinikum, Humboldt University Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
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Abstract
Reactivation of infections with herpes viruses is a frequent and major cause of morbidity after bone marrow transplantation. In this case report we stress that HSV infections of the colon and small intestine should be considered in the differential diagnosis of diarrhea and intestinal bleeding in the early post-transplantation period. Severe acute GVHD and subsequent intensive immunosuppressive treatment may increase the risk for reactivation of HSV infection particularly in situations in which acyclovir prophylaxis has been omitted.
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Affiliation(s)
- D Kingreen
- Abteilung für Innere Medizin und Poliklinik m.S. Hämatologie und Onkologie, Virchow Klinikum, Humboldt Universität, Berlin, Germany
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Nitsche A. [Importance of the topic "health" for nursing education in East Germany]. Dtsch Krankenpflegez 1992; 45:847-50. [PMID: 1473500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Hoppe E, Nitsche A. [What is fascinating to non-anthroposophs about the anthroposophically oriented nursing education]. Dtsch Krankenpflegez 1992; 45:100-2. [PMID: 1537248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Abstract
We report the frequency of neurological findings in 33 patients with overlap syndrome and describe 2 patients presenting unusual neurological involvement. Five of the 33 patients (15%) had one or more neurological findings. Unilateral trigeminal sensory neuropathy was presents, in 4 patients, in 3 of whom this was the only neurological feature. In the other patient it was associated with other manifestations of central as well as peripheral nervous system involvement, with an overall clinical pattern highly suggestive of a demyelinating disorder. The fifth patient, after an aseptic meningitis-like illness, developed a slowly progressive paraparesis, likewise pointing to a demyelinating disease. Our findings suggest that neurological manifestations, mainly trigeminal neuropathy, are frequent features in overlap syndrome; occasionally, central nervous system involvement mimicking a demyelinating disease may also be observed.
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Affiliation(s)
- A Nitsche
- Instituto Nacional de Rehabilitación, Instituto de Investigación Neurológica Raúl Carrea FLENI, Buenos Aires, Argentina
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Nitsche A, Mogni GO, Gorostiaga PE. Septic arthritis of the pubic symphysis. Clin Exp Rheumatol 1989; 7:421-2. [PMID: 2591115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Septic arthritis of the pubic symphysis developed in a previously healthy 13-year-old boy. Blood cultures and the culture of material taken by joint aspiration of the pubic symphysis under radioscopic control yielded Staphilococcus aureus. Early treatment with parenteral antibiotics prevented the development of osteomyelitis of the pubic rami in our patient. Open debridement was not necessary.
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Affiliation(s)
- A Nitsche
- Unit of Rheumatology, Policlínica Bancaria 9 de Julio, Buenos Aires, Argentina
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Nitsche A, Taborda GD, Bouveta HM, D'Antonio CC, Gronda MV. Pure red cell aplasia in a patient with systemic lupus erythematosus. J Rheumatol Suppl 1988; 15:1012-3. [PMID: 3138412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Pure red cell aplasia developed in a female patient with systemic lupus erythematosus (SLE). Erythroid colony growth was assessed in semisolid medium culture of bone marrow obtained from a normal donor and cultured in the presence of normal and patient sera. Colony forming units of erythropoiesis and burst forming units of erythropoiesis obtained from a normal donor were inhibited in the presence of patient sera. Our findings support the concept that circulating inhibitors might influence the proliferation of erythroid progenitor cells and erythroid aplasia may be an immunologically mediated syndrome.
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Affiliation(s)
- A Nitsche
- Unit of Rheumatology, Academia Nacional de Medicina, Buenos Aires, Argentina
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García-Morteo O, Nitsche A, Maldonado-Cocco JA, Barceló HA. Eosinophilic fasciitis and retroperitoneal fibrosis in a patient with systemic lupus erythematosus. Arthritis Rheum 1987; 30:1314-5. [PMID: 3689468 DOI: 10.1002/art.1780301118] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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