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Appel KS, Nürnberger C, Bahmer T, Förster C, Polidori MC, Kohls M, Kraus T, Hettich-Damm N, Petersen J, Blaschke S, Bröhl I, Butzmann J, Dashti H, Deckert J, Dreher M, Fiedler K, Finke C, Geisler R, Hanses F, Hopff SM, Jensen BEO, Konik M, Lehnert K, de Miranda SMN, Mitrov L, Miljukov O, Reese JP, Rohde G, Scherer M, Tausche K, Tebbe JJ, Vehreschild JJ, Voit F, Wagner P, Weigl M, Lemhöfer C. Definition of the Post-COVID syndrome using a symptom-based Post-COVID score in a prospective, multi-center, cross-sectoral cohort of the German National Pandemic Cohort Network (NAPKON). Infection 2024:10.1007/s15010-024-02226-9. [PMID: 38587752 DOI: 10.1007/s15010-024-02226-9] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 02/25/2024] [Indexed: 04/09/2024]
Abstract
PURPOSE The objective examination of the Post-COVID syndrome (PCS) remains difficult due to heterogeneous definitions and clinical phenotypes. The aim of the study was to verify the functionality and correlates of a recently developed PCS score. METHODS The PCS score was applied to the prospective, multi-center cross-sectoral cohort (in- and outpatients with SARS-CoV-2 infection) of the "National Pandemic Cohort Network (NAPKON, Germany)". Symptom assessment and patient-reported outcome measure questionnaires were analyzed at 3 and 12 months (3/12MFU) after diagnosis. Scores indicative of PCS severity were compared and correlated to demographic and clinical characteristics as well as quality of life (QoL, EQ-5D-5L). RESULTS Six hundred three patients (mean 54.0 years, 60.6% male, 82.0% hospitalized) were included. Among those, 35.7% (215) had no and 64.3% (388) had mild, moderate, or severe PCS. PCS severity groups differed considering sex and pre-existing respiratory diseases. 3MFU PCS worsened with clinical severity of acute infection (p = .011), and number of comorbidities (p = .004). PCS severity was associated with poor QoL at the 3MFU and 12MFU (p < .001). CONCLUSION The PCS score correlated with patients' QoL and demonstrated to be instructive for clinical characterization and stratification across health care settings. Further studies should critically address the high prevalence, clinical relevance, and the role of comorbidities. TRAIL REGISTRATION NUMBER The cohort is registered at www. CLINICALTRIALS gov under NCT04768998.
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Affiliation(s)
- Katharina S Appel
- Center for Internal Medicine, Medical Department 2 (Hematology/Oncology and Infectious Diseases), Goethe University Frankfurt, University Hospital, Theodor-Stern-Kai 7, 60596, Frankfurt am Main, Germany.
- Department I of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany.
| | - Carolin Nürnberger
- Institute for Clinical Epidemiology and Biometry, University of Würzburg, Würzburg, Germany
- Institute for Medical Data Science, University Hospital Würzburg, Würzburg, Germany
| | - Thomas Bahmer
- Internal Medicine Department I, University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
- Airway Research Center North (ARCN), German Center for Lung Research (DZL), Grosshansdorf, Germany
| | - Christian Förster
- Institute of General Practice and Interprofessional Care, University Hospital Tübingen, Tübingen, Germany
| | - Maria Cristina Polidori
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
- CECAD, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Mirjam Kohls
- Institute for Clinical Epidemiology and Biometry, University of Würzburg, Würzburg, Germany
| | - Tanja Kraus
- Institute of General Practice and Interprofessional Care, University Hospital Tübingen, Tübingen, Germany
| | - Nora Hettich-Damm
- Department of Psychosomatic Medicine and Psychotherapy, University Medical Center Mainz, Mainz, Germany
| | - Julia Petersen
- Department of Psychosomatic Medicine and Psychotherapy, University Medical Center Mainz, Mainz, Germany
| | - Sabine Blaschke
- Emergency Department, University Medical Center Göttingen, Göttingen, Germany
| | - Isabel Bröhl
- Department I of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Jana Butzmann
- Medical Faculty, Institute of Medical Microbiology and Hospital Hygiene, University Hospital Magdeburg, Otto-Von-Guericke University Magdeburg, Magdeburg, Germany
| | - Hiwa Dashti
- Practice for General Medicine Dashti, Eberswalde, Germany
| | - Jürgen Deckert
- Center of Mental Health, Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital Würzburg, Würzburg, Germany
| | - Michael Dreher
- Department of Pneumology and Intensive Care Medicine, University Hospital RWTH Aachen, Aachen, Germany
| | - Karin Fiedler
- Center for Internal Medicine, Medical Department 2 (Hematology/Oncology and Infectious Diseases), Goethe University Frankfurt, University Hospital, Theodor-Stern-Kai 7, 60596, Frankfurt am Main, Germany
- Department I of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Carsten Finke
- Department of Neurology, Charité Berlin, Berlin, Germany
| | - Ramsia Geisler
- Center for Internal Medicine, Medical Department 2 (Hematology/Oncology and Infectious Diseases), Goethe University Frankfurt, University Hospital, Theodor-Stern-Kai 7, 60596, Frankfurt am Main, Germany
- Department I of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Frank Hanses
- Emergency Department and Department for Infection Control an Infectious Diseases, University Hospital Regensburg, Regensburg, Germany
| | - Sina M Hopff
- Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Björn-Erik O Jensen
- Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Düsseldorf University Hospital, Heinrich Heine University, Düsseldorf, Germany
| | - Margarethe Konik
- Department of Infectious Diseases, West German Centre of Infectious Diseases, University Medicine Essen, University Duisburg-Essen, Essen, Germany
| | - Kristin Lehnert
- DZHK (German Center for Cardiovascular Research), University Medicine Greifswald, Greifswald, Germany
- Department of Internal Medicine B, University Medicine Greifswald, Greifswald, Germany
| | - Susana M Nunes de Miranda
- Department I of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Lazar Mitrov
- Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Olga Miljukov
- Institute for Clinical Epidemiology and Biometry, University of Würzburg, Würzburg, Germany
- Institute for Medical Data Science, University Hospital Würzburg, Würzburg, Germany
| | - Jens-Peter Reese
- Institute for Clinical Epidemiology and Biometry, University of Würzburg, Würzburg, Germany
- Institute for Medical Data Science, University Hospital Würzburg, Würzburg, Germany
| | - Gernot Rohde
- Department of Respiratory Medicine, Goethe University Frankfurt, University Hospital, Medical Clinic I, Frankfurt/Main, Germany
| | - Margarete Scherer
- Center for Internal Medicine, Medical Department 2 (Hematology/Oncology and Infectious Diseases), Goethe University Frankfurt, University Hospital, Theodor-Stern-Kai 7, 60596, Frankfurt am Main, Germany
| | - Kristin Tausche
- Department of Internal Medicine I, University Hospital Carl Gustav Carus TU Dresden, Dresden, Germany
| | - Johannes J Tebbe
- Department of Gastroenterology and Infectious Diseases, Klinikum Lippe, Lippe, Germany
| | - Jörg Janne Vehreschild
- Center for Internal Medicine, Medical Department 2 (Hematology/Oncology and Infectious Diseases), Goethe University Frankfurt, University Hospital, Theodor-Stern-Kai 7, 60596, Frankfurt am Main, Germany
- Department I of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
- German Centre for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne, Germany
| | - Florian Voit
- Department of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Patricia Wagner
- Department I of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Martin Weigl
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany
| | - Christina Lemhöfer
- Institute of Physical and Rehabilitation Medicine, Jena University Hospital/Friedrich-Schiller-University Jena, Jena, Germany
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Hasseli R, Hanses F, Stecher M, Specker C, Weise T, Borgmann S, Hasselberger M, Hertenstein B, Hower M, Hoyer BF, Koll C, Krause A, von Lilienfeld-Toal M, Lorenz HM, Merle U, Nunes de Miranda SM, Pletz MW, Regierer AC, Richter JG, Rieg S, Roemmele C, Ruethrich MM, Schmeiser T, Schulze-Koops H, Strangfeld A, Vehreschild MJ, Voit F, Voll RE, Vehreschild JJ, Müller-Ladner U, Pfeil A. The protective effect of tumor necrosis factor-alpha inhibitors in COVID-19 in patients with inflammatory rheumatic diseases compared to the general population-A comparison of two German registries. Front Med (Lausanne) 2024; 11:1332716. [PMID: 38510457 PMCID: PMC10953502 DOI: 10.3389/fmed.2024.1332716] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 02/12/2024] [Indexed: 03/22/2024] Open
Abstract
Objectives To investigate, whether inflammatory rheumatic diseases (IRD) inpatients are at higher risk to develop a severe course of SARS-CoV-2 infections compared to the general population, data from the German COVID-19 registry for IRD patients and data from the Lean European Survey on SARS-CoV-2 (LEOSS) infected patients covering inpatients from the general population with SARS-CoV-2 infections were compared. Methods 4310 (LEOSS registry) and 1139 cases (IRD registry) were collected in general. Data were matched for age and gender. From both registries, 732 matched inpatients (LEOSS registry: n = 366 and IRD registry: n = 366) were included for analyses in total. Results Regarding the COVID-19 associated lethality, no significant difference between both registries was observed. Age > 65°years, chronic obstructive pulmonary disease, diabetes mellitus, rheumatoid arthritis, spondyloarthritis and the use of rituximab were associated with more severe courses of COVID-19. Female gender and the use of tumor necrosis factor-alpha inhibitors (TNF-I) were associated with a better outcome of COVID-19. Conclusion Inflammatory rheumatic diseases (IRD) patients have the same risk factors for severe COVID-19 regarding comorbidities compared to the general population without any immune-mediated disease or immunomodulation. The use of rituximab was associated with an increased risk for severe COVID-19. On the other hand, the use of TNF-I was associated with less severe COVID-19 compared to the general population, which might indicate a protective effect of TNF-I against severe COVID-19 disease.
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Affiliation(s)
- Rebecca Hasseli
- Section of Rheumatology and Clinical Immunology, Department of Internal Medicine D, University Hospital Münster, Münster, Germany
- Department of Rheumatology and Clinical Immunology, Justus-Liebig University Giessen, Giessen, Germany
| | - Frank Hanses
- Emergency Department and Department for Infectious Diseases and Infection Control, University Hospital Regensburg, Regensburg, Germany
| | - Melanie Stecher
- Department I of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Christof Specker
- Department of Rheumatology and Clinical Immunology, KEM Kliniken Essen-Mitte, Essen, Germany
| | | | - Stefan Borgmann
- Department of Infectious Diseases and Infection Control, Ingolstadt Hospital, Ingolstadt, Germany
| | | | | | - Martin Hower
- Department of Pneumology, Infectious Diseases, Internal Medicine and Intensive Care, Klinikum Dortmund GmbH, Dortmund, Germany
| | - Bimba F. Hoyer
- Department for Rheumatology and Clinical Immunology, University of Schleswig-Holstein, Kiel, Germany
| | - Carolin Koll
- Department I of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Andreas Krause
- Department of Rheumatology, Clinical Immunology and Osteology, Immanuel Hospital Berlin, Berlin, Germany
| | | | - Hanns-Martin Lorenz
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
| | - Uta Merle
- Department of Gastroenterology and Infectious Diseases, Heidelberg University Hospital, Heidelberg, Germany
| | | | - Mathias W. Pletz
- Institute for Infectious Diseases and Infection Control, Jena University Hospital, Jena, Germany
| | - Anne C. Regierer
- Epidemiology Unit, German Rheumatism Research Center Berlin, Berlin, Germany
| | - Jutta G. Richter
- Department of Rheumatology, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine-University, Düsseldorf, Germany
- Hiller Research Center, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine-University, Düsseldorf, Germany
| | - Siegbert Rieg
- Division of Infectious Diseases, Department of Medicine II, University of Freiburg, Freiburg, Germany
| | - Christoph Roemmele
- Department of Gastroenterology, Faculty of Medicine, University of Augsburg, Augsburg, Germany
| | - Maria M. Ruethrich
- Department of Hematology and Medical Oncology, University Hospital Jena, Jena, Germany
| | | | - Hendrik Schulze-Koops
- Division of Rheumatology and Clinical Immunology, Department of Internal Medicine IV, University of Munich, Munich, Germany
| | - Anja Strangfeld
- Epidemiology Unit, German Rheumatism Research Center Berlin, Berlin, Germany
| | - Maria J.G.T. Vehreschild
- Department of Internal Medicine, Infectious Diseases, University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Florian Voit
- Department of Internal Medicine II, School of Medicine, University Hospital Rechts Der Isar, Technical University of Munich, Munich, Germany
| | - Reinhard E. Voll
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Freiburg, Germany
| | - Jörg Janne Vehreschild
- Department I of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
- Department II of Internal Medicine, Hematology/Oncology, Goethe University, Frankfurt, Germany
| | - Ulf Müller-Ladner
- Department of Rheumatology and Clinical Immunology, Justus-Liebig University Giessen, Giessen, Germany
| | - Alexander Pfeil
- Department of Internal Medicine III, University Hospital Jena, Jena, Germany
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Schmidt-Hellerau K, Raichle C, Ruethrich MM, Vehreschild JJ, Lanznaster J, Nunes de Miranda SM, Bausewein C, Vehreschild MJGT, Koll CEM, Simon ST, Hellwig K, Jensen BEO, Jung N. Specialized palliative care for hospitalized patients with SARS-CoV-2 infection: an analysis of the LEOSS registry. Infection 2023:10.1007/s15010-023-02020-z. [PMID: 36952127 PMCID: PMC10034879 DOI: 10.1007/s15010-023-02020-z] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 03/11/2023] [Indexed: 03/24/2023]
Abstract
PURPOSE Symptom control for patients who were severely ill or dying from COVID-19 was paramount while resources were strained and infection control measures were in place. We aimed to describe the characteristics of SARS-CoV-2 infected patients who received specialized palliative care (SPC) and the type of SPC provided in a larger cohort. METHODS From the multi-centre cohort study Lean European Open Survey on SARS-CoV-2 infected patients (LEOSS), data of patients hospitalized with SARS-CoV-2 infection documented between July 2020 and October 2021 were analysed. RESULTS 273/7292 patients (3.7%) received SPC. Those receiving SPC were older and suffered more often from comorbidities, but 59% presented with an estimated life expectancy > 1 year. Main symptoms were dyspnoea, delirium, and excessive tiredness. 224/273 patients (82%) died during the hospital stay compared to 789/7019 (11%) without SPC. Symptom control was provided most common (223/273; 95%), followed by family and psychological support (50% resp. 43%). Personal contact with friends or relatives before or during the dying phase was more often documented in patients receiving SPC compared to patients without SPC (52% vs. 30%). CONCLUSION In 3.7% of SARS-CoV-2 infected hospitalized patients, the burden of the acute infection triggered palliative care involvement. Besides complex symptom management, SPC professionals also focused on psychosocial and family issues and aimed to enable personal contacts of dying patients with their family. The data underpin the need for further involvement of SPC in SARS-CoV-2 infected patients but also in other severe chronic infectious diseases.
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Affiliation(s)
- Kirsten Schmidt-Hellerau
- Department I of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany.
| | - Claudia Raichle
- Department of Geriatric and Palliative Medicine, Tropenklinik Paul-Lechler Hospital, Tuebingen, Germany
| | - Maria M Ruethrich
- Department of Internal Medicine II, Haematology and Medical Oncology, University Hospital Jena, Jena, Germany
| | - Jörg J Vehreschild
- Department I of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
- Department II of Internal Medicine, Haematology/Oncology, Goethe University, Frankfurt, Frankfurt Am Main, Germany
- German Centre for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne, Germany
| | - Julia Lanznaster
- Department II of Internal Medicine, Hospital Passau, Passau, Germany
| | - Susana M Nunes de Miranda
- Department I of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Claudia Bausewein
- Department of Palliative Medicine, LMU University Hospital Munich, LMU Munich, Munich, Germany
| | - Maria J G T Vehreschild
- German Centre for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne, Germany
- Department of Internal Medicine II, Infectious Diseases, University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt Am Main, Germany
| | - Carolin E M Koll
- Department I of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Steffen T Simon
- Department of Palliative Medicine, Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Kerstin Hellwig
- Department of Neurology, St. Josef-Hospital Bochum, Ruhr University Bochum, Bochum, Germany
| | - Björn-Erik O Jensen
- Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, University Hospital Duesseldorf, Heinrich Heine University, Düsseldorf, Germany
| | - Norma Jung
- Department I of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
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4
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Pilgram L, Eberwein L, Jensen BEO, Jakob CEM, Koehler FC, Hower M, Kielstein JT, Stecher M, Hohenstein B, Prasser F, Westhoff T, de Miranda SMN, Vehreschild MJGT, Lanznaster J, Dolff S. SARS-CoV-2 infection in chronic kidney disease patients with pre-existing dialysis: description across different pandemic intervals and effect on disease course (mortality). Infection 2023; 51:71-81. [PMID: 35486356 PMCID: PMC9052729 DOI: 10.1007/s15010-022-01826-7] [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: 11/20/2021] [Accepted: 04/03/2022] [Indexed: 01/31/2023]
Abstract
PURPOSE Patients suffering from chronic kidney disease (CKD) are in general at high risk for severe coronavirus disease (COVID-19) but dialysis-dependency (CKD5D) is poorly understood. We aimed to describe CKD5D patients in the different intervals of the pandemic and to evaluate pre-existing dialysis dependency as a potential risk factor for mortality. METHODS In this multicentre cohort study, data from German study sites of the Lean European Open Survey on SARS-CoV-2-infected patients (LEOSS) were used. We multiply imputed missing data, performed subsequent analyses in each of the imputed data sets and pooled the results. Cases (CKD5D) and controls (CKD not requiring dialysis) were matched 1:1 by propensity-scoring. Effects on fatal outcome were calculated by multivariable logistic regression. RESULTS The cohort consisted of 207 patients suffering from CKD5D and 964 potential controls. Multivariable regression of the whole cohort identified age (> 85 years adjusted odds ratio (aOR) 7.34, 95% CI 2.45-21.99), chronic heart failure (aOR 1.67, 95% CI 1.25-2.23), coronary artery disease (aOR 1.41, 95% CI 1.05-1.89) and active oncological disease (aOR 1.73, 95% CI 1.07-2.80) as risk factors for fatal outcome. Dialysis-dependency was not associated with a fatal outcome-neither in this analysis (aOR 1.08, 95% CI 0.75-1.54) nor in the conditional multivariable regression after matching (aOR 1.34, 95% CI 0.70-2.59). CONCLUSIONS In the present multicentre German cohort, dialysis dependency is not linked to fatal outcome in SARS-CoV-2-infected CKD patients. However, the mortality rate of 26% demonstrates that CKD patients are an extreme vulnerable population, irrespective of pre-existing dialysis-dependency.
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Affiliation(s)
- Lisa Pilgram
- grid.6363.00000 0001 2218 4662Department of Nephrology and Medical Intensive Care, Charité, Universitätsmedizin Berlin, Berlin, Germany ,grid.7839.50000 0004 1936 9721Department of Internal Medicine, Hematology and Oncology, Goethe University Frankfurt, Frankfurt, Germany
| | - Lukas Eberwein
- grid.419829.f0000 0004 0559 52934th Department of Internal Medicine, Klinikum Leverkusen gGmbH, Leverkusen, Germany
| | - Bjoern-Erik O. Jensen
- grid.411327.20000 0001 2176 9917Department of Gastroenterology, Hepatology and Infectious Diseases, Heinrich Heine University, Düsseldorf, Germany
| | - Carolin E. M. Jakob
- grid.6190.e0000 0000 8580 3777Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany ,grid.452463.2German Centre for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne, Germany
| | - Felix C. Koehler
- grid.6190.e0000 0000 8580 3777Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany ,grid.452408.fFaculty of Medicine and University Hospital Cologne, CECAD, University of Cologne, Cologne, Germany
| | - Martin Hower
- grid.473616.10000 0001 2200 2697Department of Pneumology, Infectiology, Internal Medicine and Intensive Care, Klinikum Dortmund gGmbH, Dortmund, Hospital of University Witten/Herdecke, Dortmund, Germany
| | - Jan T. Kielstein
- Medical Clinic V, Nephrology
- Rheumatology
- Blood Purification, Academic Teaching Hospital Braunschweig, Braunschweig, Germany
| | - Melanie Stecher
- grid.6190.e0000 0000 8580 3777Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany ,grid.452463.2German Centre for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne, Germany
| | - Bernd Hohenstein
- Nephrological Centre Villingen-Schwenningen, Villingen-Schwenningen, Germany
| | - Fabian Prasser
- grid.484013.a0000 0004 6879 971XBerlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Timm Westhoff
- grid.459734.80000 0000 9602 8737Department of Internal Medicine I, Marien Hospital Herne Ruhr University Bochum, Herne, Germany
| | - Susana M. Nunes de Miranda
- grid.6190.e0000 0000 8580 3777Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Maria J. G. T. Vehreschild
- grid.7839.50000 0004 1936 9721Department of Internal Medicine, Infectious Diseases, Goethe University Frankfurt, Frankfurt, Germany
| | - Julia Lanznaster
- grid.506534.10000 0000 9259 167XDepartment of Internal Medicine 2, Klinikum Passau, Passau, Germany
| | - Sebastian Dolff
- grid.5718.b0000 0001 2187 5445Department of Infectious Diseases, West German Centre of Infectious Diseases, University Hospital Essen, University Duisburg-Essen, Hufelandstr. 55, 45122 Essen, Germany
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Appel KS, Maier D, Hopff SM, Mitrov L, Stecher M, Scherer M, Geisler R, Hagen M, Haas K, Reese JP, Jiru-Hillmann S, Miljukov O, Jakob CEM, Nunes de Miranda SM, Meybohm P, Hanß S, Erber J, Winter C, Tebbe JJ, Stellbrink C, Khodamoradi Y, Schmidt J, Hanses F, Scheer C, Blaschke S, Göpel S, Kluge S, Witzke O, Römmele C, Krawczyk M, Teufel A, Schmid J, Pape D, Schütte C, Tausche K, Milovanovic M, Krug N, Tepasse PR, Verket M, Hamprecht A, Tasci S, Hower M, Jensen BEO, Sprinzl MF, Zimmermann T, Vehreschild JJ. 1886. External Validation of the 4C Mortality Score and the qSOFA for Different Variants of Concerns of SARS-CoV-2 Using Data of the NAPKON Cross-Sectoral Cohort Platform (SUEP). Open Forum Infect Dis 2022. [PMCID: PMC9752978 DOI: 10.1093/ofid/ofac492.1513] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background Numerous predictive clinical scores with varying discriminatory performance have been developed in the context of the current coronavirus disease 2019 (COVID-19) pandemic. To support clinical application, we test the transferability of the frequently applied 4C mortality score (4C score) to the German prospective Cross-Sectoral Platform (SUEP) of the National Pandemic Cohort Network (NAPKON) compared to the non COVID-19 specific quick sequential organ failure assessment score (qSOFA). Our project aims to externally validate these two scores, stratified for the most prevalent variants of concerns (VOCs) of severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) in Germany. Methods A total of 685 adults with polymerase chain reaction (PCR)-detected SARS-CoV-2 infection were included from NAPKON-SUEP. Patients were recruited from 11/2020 to 03/2022 at 34 university and non-university hospitals across Germany. Missing values were complemented using multiple imputation. Predictive performance for in-hospital mortality at day of baseline visit was determined by area under the curve (AUC) with 95%-confidence interval (CI) stratified by VOCs of SARS-CoV-2 (alpha, delta, omicron) (Figure 1).
Study flow chart with inclusion criteria and methodological workflow. ![]() Results Preliminary results suggest a high predictive performance of the 4C score for in-hospital mortality (Table 1). This applies for the overall cohort (AUC 0.813 (95%CI 0.738-0.888)) as well as the VOC-strata (alpha: AUC 0.859 (95%CI 0.748-0.970); delta: AUC 0.769 (95%CI 0.657-0.882); omicron: AUC 0.866 (95%CI 0.724-1.000)). The overall mortality rates across the defined 4C score risk groups are 0.3% (low), 3.2% (intermediate), 11.6% (high), and 49.5% (very high). The 4C score performs significantly better than the qSOFA (Chi2-test: p=0.001) and the qSOFA does not seem to be a suitable tool in this context.
Discriminatory performance of the 4C Mortality Score and the qSOFA score within the validation cohort NAPKON-SUEP stratified by the Variant of Concerns of SARS-CoV-2. ![]() Conclusion Despite its development in the early phase of the pandemic and improved treatment, external validation of the 4C score in NAPKON-SUEP indicates a high predictive performance for in-hospital mortality across all VOCs. However, since the qSOFA was not specifically designed for this predictive issue, it shows low discriminatory performance, as in other validation studies. Any interpretations regarding the omicron stratum are limited due to the sample size. Disclosures Daniel Pape, Dr., Advanz Pharma Germany: Support for attending meetings and/or travel for ECCMID 2021 Martin Hower, n/a, MSD: Advisor/Consultant|Trogarzo: Advisor/Consultant|ViiV Healthcare: Advisor/Consultant Björn-Erik O. Jensen, Dr. med., GILEAD: Advisor/Consultant|GILEAD: Lectures, Travel|GSK: Lectures, Travel Jörg J. Vehreschild, Univ.-Prof. Dr. med., Ärztekammer Nordrhein: Honoraria|Academy for Infectious Medicine, University Manchester: Honoraria|Astellas Pharma: Grant/Research Support|Astellas Pharma: Honoraria|Back Bay Strategies: Honoraria|Basilea: Grant/Research Support|Basilea: Honoraria|Deutsches Zetrum für Luft- und Raumfahrt (DLR): Grant/Research Support|German Centre for Infection Research (DZIF): Grant/Research Support|German Centre for Infection Research (DZIF): Honoraria|German Federal Ministry of Education and Research (BMBF): Grant/Research Support|German Society for Infectious Diseases (DGI): Honoraria|German Society for Internal Medicine (DGIM): Honoraria|GILEAD: Advisor/Consultant|GILEAD: Grant/Research Support|GILEAD: Honoraria|Janssen: Honoraria|Merck / MSD: Grant/Research Support|Merck / MSD: Honoraria|Molecular Health: Honoraria|Netzwerk Universitätsmedizin: Honoraria|NordForsk: Honoraria|Pfizer: Advisor/Consultant|Pfizer: Grant/Research Support|Pfizer: Honoraria|Rigshospitalet Copenhagen: Grant/Research Support|Shionogi: Advisor/Consultant|Shionogi: Honoraria|University Hospital Aachen: Honoraria|University Hospital Freiburg/ Congress and Communication: Honoraria|University of Bristol: Grant/Research Support.
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Affiliation(s)
- Katharina S Appel
- Department of Internal Medicine, Hematology/Oncology, Goethe University Frankfurt, Frankfurt am Main, Germany, Frankfurt am Main, Hessen, Germany
| | - Daniel Maier
- University Hospital Frankfurt, Frankfurt am Main, Germany,German Cancer Consortium (DKTK), Heidelberg, Germany, Frankfurt am Main, Hessen, Germany
| | - Sina M Hopff
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, Köln, Nordrhein-Westfalen, Germany
| | - Lazar Mitrov
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, Köln, Nordrhein-Westfalen, Germany
| | - Melanie Stecher
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf; German Centre for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne, Germany, Cologne, Nordrhein-Westfalen, Germany
| | - Margarete Scherer
- Department of Internal Medicine, Hematology/Oncology, Goethe University Frankfurt, Frankfurt am Main, Germany, Frankfurt am Main, Hessen, Germany
| | - Ramsia Geisler
- Department of Internal Medicine, Hematology/Oncology, Goethe University Frankfurt, Frankfurt am Main, Germany, Frankfurt am Main, Hessen, Germany
| | - Marina Hagen
- Department of Internal Medicine, Hematology/Oncology, Goethe University Frankfurt, Frankfurt am Main, Germany, Frankfurt am Main, Hessen, Germany
| | - Kirsten Haas
- Insitute for Clinical Epidemiology and Biometry, Julius Maximilians Universität Würzburg, Würzburg, Bayern, Germany
| | - Jens-Peter Reese
- Insitute for Clinical Epidemiology and Biometry, Julius Maximilians Universität Würzburg, Würzburg, Bayern, Germany
| | - Steffi Jiru-Hillmann
- Insitute for Clinical Epidemiology and Biometry, Julius Maximilians Universität Würzburg, Würzburg, Bayern, Germany
| | - Olga Miljukov
- Insitute for Clinical Epidemiology and Biometry, Julius Maximilians Universität Würzburg, Würzburg, Bayern, Germany
| | - Carolin E M Jakob
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf; German Centre for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne, Germany, Cologne, Nordrhein-Westfalen, Germany
| | - Susana M Nunes de Miranda
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, Köln, Nordrhein-Westfalen, Germany
| | - Patrick Meybohm
- Department of Anaesthesiology, Intensive Care, Emergency and Pain Medicine, University Hospital Würzburg, Würzburg, Würzburg, Bayern, Germany
| | - Sabine Hanß
- University Medical Center Göttingen, Department of Medical Informatics, Göttingen, Germany, Göttingen, Niedersachsen, Germany
| | - Johanna Erber
- Technical University of Munich, School of Medicine – University Hospital, Department of Internal Medicine, Gastroenterology, Munich, Bayern, Germany
| | - Christof Winter
- Technical University of Munich, School of Medicine – University Hospital, Institute for Clinical Chemistry and Pathobiochemistry, Munich, Bayern, Germany
| | - Johannes J Tebbe
- University Medical Center East Westphalia-Lippe, Klinikum Lippe, Department of Gastroenterology and Infectious Disease, Lippe, Nordrhein-Westfalen, Germany
| | - Christoph Stellbrink
- Bielefeld University, Medical School and University Medical Center East Westphalia-Lippe, Klinikum Bielefeld, Academic Department of Cardiology, Bielefeld, Nordrhein-Westfalen, Germany
| | - Yascha Khodamoradi
- Department of Internal Medicine, Infectious Diseases, Goethe University Frankfurt, Frankfurt am Main, Germany, Frankfurt am Main, Hessen, Germany
| | - Julia Schmidt
- Insitute for Clinical Epidemiology and Biometry, Julius Maximilians Universität Würzburg, Würzburg, Bayern, Germany
| | - Frank Hanses
- Emergency Department and Department for Infection Control and Infectious Diseases, University Hospital Regensburg, Regensburg, Germany, Regensburg, Bayern, Germany
| | - Christian Scheer
- Department of Anaesthesiology, University Medicine Greifswald, Greifswald, Germany, Greifswald, Mecklenburg-Vorpommern, Germany
| | - Sabine Blaschke
- Emergency Department, University Medical Center Göttingen, FRG, Göttingen, Niedersachsen, Germany
| | - Siri Göpel
- Department of Internal Medicine I, Infectious Diseases, Tübingen University Hospital, Tübingen, Germany,German Centre for Infection Research (DZIF), Clinical Research Unit for healthcare associated infections, Tübingen, Germany, Tübingen, Baden-Wurttemberg, Germany
| | - Stefan Kluge
- Department of Intensive Care, University Medical Center Hamburg-Eppendorf, Hamburg, Hamburg, Germany
| | - Oliver Witzke
- Department of Infectious Diseases, West German Centre of Infectious Diseases, Universitymedicine Essen, University Duisburg-Essen, Germany, Essen, Nordrhein-Westfalen, Germany
| | - Christoph Römmele
- Clinic for Internal Medicine III - Gastroenterology and Infectious Diseases, University Hospital of Augsburg, Augsburg, Germany, Augsburg, Bayern, Germany
| | - Marcin Krawczyk
- Department of Medicine II, Saarland University Medical Center, Saarland University, Homburg, Germany, Homburg, Saarland, Germany
| | - Andreas Teufel
- Department of Medicine II, Division of Hepatology, Division of Bioinformatics, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany,Clinical Cooperation Unit Healthy Metabolism, Center for Preventive Medicine and Digital Health Baden-Württemberg (CPDBW), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany, Mannheim, Baden-Wurttemberg, Germany
| | - Jonas Schmid
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsklinikum Erlangen, Medicine I, Erlangen, Germany, Erlangen, Bayern, Germany
| | - Daniel Pape
- Department of Internal Medicine I, University Hospital Schleswig Holstein, Campus Kiel, Kiel, Schleswig-Holstein, Germany
| | - Christian Schütte
- Dept. of Medicine I, St. Josef-Hospital, Ruhr-University of Bochum Medical School, Bochum, Nordrhein-Westfalen, Germany
| | - Kristin Tausche
- Department of Internal Medicine I, Pulmonology, Carl- Gustav-Carus University Dresden, Germany, Dresden, Sachsen, Germany
| | - Milena Milovanovic
- Medical Clinic 1, Malteser Krankenhaus St. Franziskus Hospital, Flensburg, Germany, Flensburg, Schleswig-Holstein, Germany
| | - Natalie Krug
- Department of Anesthesiology and Intensive Care, University Hospital Leipzig, Germany, Leipzig, Sachsen, Germany
| | - Phil-Robin Tepasse
- Department of Medicine B for Gastroenterology, Hepatology, Endocrinology, Clinical Infectiology, Münster, Germany, Münster, Nordrhein-Westfalen, Germany
| | - Marlo Verket
- Department of Medicine I, Clinical Study Center, University Hospital Aachen, Aachen, Nordrhein-Westfalen, Germany
| | - Axel Hamprecht
- University Medical Clinic of Medical Microbiology and Virology, Department of Human Medicine, University Oldenburg, Germany, Oldenburg, Niedersachsen, Germany
| | - Selcuk Tasci
- Department of Pulmonology, Helios Klinikum, Siegburg, Germany, Siegburg, Nordrhein-Westfalen, Germany
| | - Martin Hower
- Department of Pneumology, Infectiology, Internal Medicine and Intensive Care, Klinikum Dortmund GmbH, Dortmund, Dortmund, Nordrhein-Westfalen, Germany
| | - Björn-Erik O Jensen
- Department of Gastroenterology, Hepatology and Infectiology, Heinrich-Heine-University, Duesseldorf, Germany, Düsseldorf, Nordrhein-Westfalen, Germany
| | - Martin F Sprinzl
- Department of Internal Medicine I, University Medical Center of the Johannes Gutenberg University, Mainz, Germany, Mainz, Rheinland-Pfalz, Germany
| | - Tim Zimmermann
- Department of Internal Medicine II, Gastroenterology and Hepatology, Klinikum Worms, Germany, Worms, Rheinland-Pfalz, Germany
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Pilgram L, Schons M, Jakob CEM, Claßen AY, Franke B, Tscharntke L, Schulze N, Fuhrmann S, Sauer G, de Miranda SMN, Prasser F, Stecher M, Vehreschild JJ. [The COVID-19 Pandemic as an Opportunity and Challenge for Registries in Health Services Research: Lessons Learned from the Lean European Open Survey on SARS-CoV-2 Infected Patients (LEOSS)]. Gesundheitswesen 2021; 83:S45-S53. [PMID: 34731893 DOI: 10.1055/a-1655-8705] [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: 10/19/2022]
Abstract
OBJECTIVE The Coronavirus Disease-2019 (COVID-19) pandemic has brought opportunities and challenges, especially for health services research based on routine data. In this article we will demonstrate this by presenting lessons learned from establishing the currently largest registry in Germany providing a detailed clinical dataset on Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infected patients: the Lean European Open Survey on SARS-CoV-2 Infected Patients (LEOSS). METHODS LEOSS is based on a collaborative and integrative research approach with anonymous recruitment and collection of routine data and the early provision of data in an open science context. The only requirement for inclusion was a SARS-CoV-2 infection confirmed by virological diagnosis. Crucial strategies to successfully realize the project included the dynamic reallocation of available staff and technical resources, an early and direct involvement of data protection experts and the ethics committee as well as the decision for an iterative and dynamic process of improvement and further development. RESULTS Thanks to the commitment of numerous institutions, a transsectoral and transnational network of currently 133 actively recruiting sites with 7,227 documented cases could be established (status: 18.03.2021). Tools for data exploration on the project website, as well as the partially automated provision of datasets according to use cases with varying requirements, enabled us to utilize the data collected within a short period of time. Data use and access processes were carried out for 97 proposals assigned to 27 different research areas. So far, nine articles have been published in peer-reviewed international journals. CONCLUSION As a collaborative effort of the whole network, LEOSS developed into a large collection of clinical data on COVID-19 in Germany. Even though in other international projects, much larger data sets could be analysed to investigate specific research questions through direct access to source systems, the uniformly maintained and technically verified documentation standard with many discipline-specific details resulted in a large valuable data set with unique characteristics. The lessons learned while establishing LEOSS during the current pandemic have already created important implications for the design of future registries and for pandemic preparedness and response.
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Affiliation(s)
- Lisa Pilgram
- Hämatologie, Onkologie, Hämostaseologie, Rheumatologie, Infektiologie, Universitätsklinikum Frankfurt Zentrum der Inneren Medizin, Frankfurt am Main, Deutschland
| | - Maximilian Schons
- Onkologie, Hämatologie, Klinische Infektiologie, Klinische Immunologie, Hämostaseologie, Internistische Intensivmedizin, Uniklinik Köln Klinik I für Innere Medizin, Köln, Deutschland
| | - Carolin E M Jakob
- Onkologie, Hämatologie, Klinische Infektiologie, Klinische Immunologie, Hämostaseologie, Internistische Intensivmedizin, Uniklinik Köln Klinik I für Innere Medizin, Köln, Deutschland.,Standort Köln-Bonn, Deutsches Zentrum für Infektionsforschung (DZIF), Köln, Deutschland
| | - Annika Y Claßen
- Onkologie, Hämatologie, Klinische Infektiologie, Klinische Immunologie, Hämostaseologie, Internistische Intensivmedizin, Uniklinik Köln Klinik I für Innere Medizin, Köln, Deutschland.,Standort Köln-Bonn, Deutsches Zentrum für Infektionsforschung (DZIF), Köln, Deutschland
| | - Bernd Franke
- Onkologie, Hämatologie, Klinische Infektiologie, Klinische Immunologie, Hämostaseologie, Internistische Intensivmedizin, Uniklinik Köln Klinik I für Innere Medizin, Köln, Deutschland.,Standort Köln-Bonn, Deutsches Zentrum für Infektionsforschung (DZIF), Köln, Deutschland
| | - Lene Tscharntke
- Onkologie, Hämatologie, Klinische Infektiologie, Klinische Immunologie, Hämostaseologie, Internistische Intensivmedizin, Uniklinik Köln Klinik I für Innere Medizin, Köln, Deutschland
| | - Nick Schulze
- Onkologie, Hämatologie, Klinische Infektiologie, Klinische Immunologie, Hämostaseologie, Internistische Intensivmedizin, Uniklinik Köln Klinik I für Innere Medizin, Köln, Deutschland.,Standort Köln-Bonn, Deutsches Zentrum für Infektionsforschung (DZIF), Köln, Deutschland
| | - Sandra Fuhrmann
- Onkologie, Hämatologie, Klinische Infektiologie, Klinische Immunologie, Hämostaseologie, Internistische Intensivmedizin, Uniklinik Köln Klinik I für Innere Medizin, Köln, Deutschland
| | - Gabriel Sauer
- Onkologie, Hämatologie, Klinische Infektiologie, Klinische Immunologie, Hämostaseologie, Internistische Intensivmedizin, Uniklinik Köln Klinik I für Innere Medizin, Köln, Deutschland
| | - Susana M Nunes de Miranda
- Onkologie, Hämatologie, Klinische Infektiologie, Klinische Immunologie, Hämostaseologie, Internistische Intensivmedizin, Uniklinik Köln Klinik I für Innere Medizin, Köln, Deutschland
| | - Fabian Prasser
- Charité Universitätsmedizin Berlin, Berlin Institute of Health, Berlin, Deutschland.,Corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charité Universitätsmedizin Berlin, Berlin, Deutschland
| | - Melanie Stecher
- Onkologie, Hämatologie, Klinische Infektiologie, Klinische Immunologie, Hämostaseologie, Internistische Intensivmedizin, Uniklinik Köln Klinik I für Innere Medizin, Köln, Deutschland.,Standort Köln-Bonn, Deutsches Zentrum für Infektionsforschung (DZIF), Köln, Deutschland
| | - Jörg J Vehreschild
- Hämatologie, Onkologie, Hämostaseologie, Rheumatologie, Infektiologie, Universitätsklinikum Frankfurt Zentrum der Inneren Medizin, Frankfurt am Main, Deutschland.,Onkologie, Hämatologie, Klinische Infektiologie, Klinische Immunologie, Hämostaseologie, Internistische Intensivmedizin, Uniklinik Köln Klinik I für Innere Medizin, Köln, Deutschland.,Standort Köln-Bonn, Deutsches Zentrum für Infektionsforschung (DZIF), Köln, Deutschland
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Nunes de Miranda SM, Wilhelm T, Huber M, Zorn CN. Differential Lyn-dependence of the SHIP1-deficient mast cell phenotype. Cell Commun Signal 2016; 14:12. [PMID: 27206658 PMCID: PMC4874025 DOI: 10.1186/s12964-016-0135-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 10/07/2015] [Accepted: 05/13/2016] [Indexed: 01/02/2023] Open
Abstract
Background Antigen (Ag)/IgE-mediated mast cell (MC) responses play detrimental roles in allergic diseases. MC activation via the high-affinity receptor for IgE (FcεRI) is controlled by the Src family kinase Lyn. Lyn-deficient (-/-) bone marrow-derived MCs (BMMCs) have been shown by various laboratories to exert stronger activation of the PI3K pathway, degranulation, and production of pro-inflammatory cytokines compared to wild-type (wt) cells. This mimics the phenotype of BMMCs deficient for the SH2-containing inositol-5’-phosphatase 1 (SHIP1). In this line, Lyn has been demonstrated to tyrosine-phosphorylate and activate SHIP1, thereby constituting a negative feedback control of PI3K-mediated signals. However, several groups have also reported on Lyn-/- BMMCs degranulating weaker than wt BMMCs. Results Lyn-/- BMMCs, which show a suppressed degranulation response, were found to exhibit abrogated tyrosine phosphorylation of SHIP1 as well. This indicated that even in the presence of reduced SHIP1 function MC degranulation is dependent on Lyn function. In contrast to the reduced immediate secretory response, pro-inflammatory cytokine production was augmented in Lyn-/- BMMCs. For closer analysis, Lyn/SHIP1-double-deficient (dko) BMMCs were generated. In support of the dominance of Lyn deficiency, dko BMMCs degranulated significantly weaker than SHIP1-/- BMMCs. This coincided with reduced LAT1 and PLC-γ1 phosphorylation as well as Ca2+ mobilization in those cells. Interestingly, activation of the NFκB pathway followed the same pattern as measured by IκBα phosphorylation/degradation as well as induction of NFκB target genes. This suggested that Ag-triggered NFκB activation involves a Ca2+-dependent step. Indeed, IκBα phosphorylation/degradation and NFκB target gene induction were controlled by the Ca2+-dependent phosphatase calcineurin. Conclusions Lyn deficiency is dominant over SHIP1 deficiency in MCs with respect to Ag-triggered degranulation and preceding signaling events. Moreover, the NFκB pathway and respective targets are activated in a Lyn- and Ca2+-dependent manner, reinforcing the importance of Lyn for MC activation. Electronic supplementary material The online version of this article (doi:10.1186/s12964-016-0135-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Susana M Nunes de Miranda
- Institute of Biochemistry and Molecular Immunology, University Clinic, RWTH Aachen University, Pauwelsstraße 30, Aachen, 52074, Germany
| | - Thomas Wilhelm
- Institute of Biochemistry and Molecular Immunology, University Clinic, RWTH Aachen University, Pauwelsstraße 30, Aachen, 52074, Germany
| | - Michael Huber
- Institute of Biochemistry and Molecular Immunology, University Clinic, RWTH Aachen University, Pauwelsstraße 30, Aachen, 52074, Germany.
| | - Carolin N Zorn
- Institute of Biochemistry and Molecular Immunology, University Clinic, RWTH Aachen University, Pauwelsstraße 30, Aachen, 52074, Germany
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Muthuramalingam M, Seidel T, Laxa M, Nunes de Miranda SM, Gärtner F, Ströher E, Kandlbinder A, Dietz KJ. Multiple redox and non-redox interactions define 2-Cys peroxiredoxin as a regulatory hub in the chloroplast. Mol Plant 2009; 2:1273-88. [PMID: 19995730 DOI: 10.1093/mp/ssp089] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
In plants, the highly abundant 2-cysteine peroxiredoxin (2-CysPrx) is associated with the chloroplast and involved in protecting photosynthesis. This work addresses the multiple interactions of the 2-CysPrx in the chloroplast, which depend on its redox state. Transcript co-regulation analysis showed a strong linkage to the peptidyl-prolyl-cis/trans isomerase Cyclophilin 20-3 (Cyp20-3) and other components of the photosynthetic apparatus. Co-expression in protoplasts and quantification of fluorescence resonance energy transfer (FRET) efficiency in vivo confirmed protein interactions of 2-CysPrx with Cyp20-3 as well as NADPH-dependent thioredoxin reductase C (NTRC), while thioredoxin x (Trx-x) did not form complexes that could enable FRET. Likewise, changes in FRET of fluorescently labeled 2-CysPrx in vitro and in vivo proved redox dependent dynamics of 2-CysPrx. Addition of Cyp20-3 to an in vitro peroxidase assay with 2-CysPrx had no significant effect on peroxide reduction. Also, in the presence of NTRC, addition of Cyp20-3 did not further enhance peroxide reduction. In addition, 2-CysPrx functioned as chaperone and inhibited aggregation of citrate synthase during heat treatment. This activity was partly inhibited by Cyp20-3. As a new interaction partner of decameric 2-CysPrx, photosystem II could be identified after chloroplast fractionation and in pull-down assays after reconstitution. In summary, the data indicate a dynamic function of plant 2-CysPrx as redox sensor, chaperone, and regulator in the chloroplast with diverse functions beyond its role as thiol peroxidase.
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