1
|
Osterholt T, Todorova P, Kühne L, Ehren R, Weber LT, Grundmann F, Benzing T, Brinkkötter PT, Völker LA. Repetitive administration of rituximab can achieve and maintain clinical remission in patients with MCD or FSGS. Sci Rep 2023; 13:6980. [PMID: 37117201 PMCID: PMC10141841 DOI: 10.1038/s41598-023-32576-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 03/29/2023] [Indexed: 04/30/2023] Open
Abstract
Minimal change disease (MCD) and focal segmental glomerulosclerosis (FSGS) are glomerulopathies associated with nephrotic syndrome. Primary forms of these diseases are treated with various regimes of immunosuppression. Frequently relapsing or glucocorticoid-dependent courses remain challenging. Here, a B-cell-depleting strategy with rituximab represents a salvage option although data are sparse in the adult population. In particular, there is limited evidence on the efficacy of restoring remission after initial successful treatment with rituximab and whether patients benefit from an individualized, relapse-based approach. We identified 13 patients who received multiple therapies with rituximab from the FOrMe-registry (NCT03949972), a nationwide registry for MCD and FSGS in Germany, or from the University Hospital of Cologne. Disease status, changes in serum creatinine, proteinuria, and time to relapse were evaluated. Relapse-free survival was compared to the patients' previous therapy regimens. Through all treatment cycles, an improvement of disease activity was shown leading to a complete remission in 72% and partial remission in 26% after 3 ([Formula: see text]0.001) and 6 months ([Formula: see text]0.001). Relapse-free survival increased from 4.5 months (95%-CI 3-10 months) to 21 months (95%-CI 16-32 months) ([Formula: see text]0.001) compared to previous immunosuppression regimens with no loss in estimated glomerular filtration over time (p = 0.53). Compared to continuous B-cell depletion, an individualized relapse-based approach led to a reduced rituximab exposure and significant cost savings. Relapse-based administration of rituximab in patients with MCD/FSGS with an initial good clinical response did not result in a decreased efficacy at a median follow-up duration of 110 months. Thus, reinduction therapies may provide an alternative to continuous B-cell-depletion and reduce the long-term side effects of continuous immunosuppression.
Collapse
Affiliation(s)
- Thomas Osterholt
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine, University Hospital of Cologne, University of Cologne, Cologne, Germany
| | - Polina Todorova
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine, University Hospital of Cologne, University of Cologne, Cologne, Germany
| | - Lucas Kühne
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine, University Hospital of Cologne, University of Cologne, Cologne, Germany
| | - Rasmus Ehren
- Faculty of Medicine, Pediatric Nephrology, Children's and Adolescents' Hospital, University Hospital of Cologne, University of Cologne, Cologne, Germany
| | - Lutz Thorsten Weber
- Faculty of Medicine, Pediatric Nephrology, Children's and Adolescents' Hospital, University Hospital of Cologne, University of Cologne, Cologne, Germany
| | - Franziska Grundmann
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine, University Hospital of Cologne, University of Cologne, Cologne, Germany
| | - Thomas Benzing
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine, University Hospital of Cologne, University of Cologne, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany
| | - Paul Thomas Brinkkötter
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine, University Hospital of Cologne, University of Cologne, Cologne, Germany.
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany.
| | - Linus Alexander Völker
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine, University Hospital of Cologne, University of Cologne, Cologne, Germany
| |
Collapse
|
2
|
Völker LA, Kaufeld J, Balduin G, Merkel L, Kühne L, Eichenauer DA, Osterholt T, Hägele H, Kann M, Grundmann F, Kolbrink B, Schulte K, Gäckler A, Kribben A, Boss K, Potthoff SA, Rump LC, Schmidt T, Mühlfeld AS, Schulmann K, Hermann M, Gaedeke J, Sauerland K, Bramstedt J, Hinkel UP, Miesbach W, Bauer F, Westhoff TH, Bruck H, Buxhofer-Ausch V, Müller TJ, Wendt R, Harth A, Schreiber A, Seelow E, Tölle M, Gohlisch C, Bieringer M, Geuther G, Jabs WJ, Fischereder M, von Bergwelt-Baildon A, Schönermarck U, Knoebl P, Menne J, Brinkkoetter PT. Impact of first-line use of caplacizumab on treatment outcomes in immune thrombotic thrombocytopenic purpura. J Thromb Haemost 2023; 21:559-572. [PMID: 36696206 DOI: 10.1016/j.jtha.2022.11.010] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 11/14/2022] [Accepted: 11/23/2022] [Indexed: 01/26/2023]
Abstract
BACKGROUND The von Willebrand factor-directed nanobody caplacizumab has greatly changed the treatment of immune thrombotic thrombocytopenic purpura (iTTP) in recent years. Data from randomized controlled trials established efficacy and safety. OBJECTIVES This study aims to address open questions regarding patient selection, tailoring of therapy duration, obstacles in prescribing caplacizumab in iTTP, effect on adjunct treatment, and outcomes in the real-world setting. METHODS We report retrospective, observational cohorts of 113 iTTP episodes treated with caplacizumab and 119 historical control episodes treated without caplacizumab. We aggregated data from the caplacizumab phase II/III trials and real-world data from France, the United Kingdom, Germany, and Austria (846 episodes, 396 treated with caplacizumab, and 450 historical controls). RESULTS Caplacizumab was efficacious in iTTP, independent of the timing of therapy initiation, but curtailed the time of active iTTP only when used in the first-line therapy within 72 hours after diagnosis and until at least partial ADAMTS13-activity remission. Aggregated data from multiple study populations showed that caplacizumab use resulted in significant absolute risk reduction of 2.87% for iTTP-related mortality (number needed to treat 35) and a relative risk reduction of 59%. CONCLUSION Caplacizumab should be used in first line and until ADAMTS13-remission, lowers iTTP-related mortality and refractoriness, and decreases the number of daily plasma exchange and hospital stay. This trial is registered at www. CLINICALTRIALS gov as #NCT04985318.
Collapse
Affiliation(s)
- Linus A Völker
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany; Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases, Cologne, Germany
| | - Jessica Kaufeld
- Department of Nephrology and Hypertension, Medical School Hannover, Hannover, Germany
| | - Gesa Balduin
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Lena Merkel
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Lucas Kühne
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Dennis A Eichenauer
- First Department of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf, University of Cologne, Cologne, Germany
| | - Thomas Osterholt
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Holger Hägele
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Martin Kann
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany; Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases, Cologne, Germany
| | - Franziska Grundmann
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Benedikt Kolbrink
- Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Kevin Schulte
- Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Anja Gäckler
- Department of Nephrology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Andreas Kribben
- Department of Nephrology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Kristina Boss
- Department of Nephrology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Sebastian A Potthoff
- University Hospital Düsseldorf, Department of Nephrology, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany, Germany
| | - Lars C Rump
- University Hospital Düsseldorf, Department of Nephrology, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany, Germany
| | - Tilman Schmidt
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Germany
| | - Anja S Mühlfeld
- Uniklinik RWTH Aachen, Department of Medicine, Division of Nephrology, Aachen, Germany
| | - Karsten Schulmann
- Klinik für Hämatologie, Onkologie Palliativmedizin und Stammzelltransplantation, Klinikum Hochsauerland GmbH, Walburga Krankenhaus Meschede, Meschede, Germany; MVZ Hochsauerland GmbH, Praxis für Hämatologie und Onkologie, Arnsberg, Germany
| | - Matthias Hermann
- Medizinische Klinik V, Hämatologie/Onkologie, Sozialstiftung Bamberg, Klinikum am Bruderwald, Bamberg
| | - Jens Gaedeke
- Department of Nephrology and Intensive Care Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Kristin Sauerland
- Klinik für Innere Medizin, Hämatologie/Onkologie, Stammzelltransplantation und Palliativmedizin, Johannesstift, Bielefeld, Germany
| | - Jörn Bramstedt
- Medizinische Klinik II Sektion Nephrologie, Klinikum Bremerhaven Reinkenheide, Bremerhaven, Germany
| | - Ulrich P Hinkel
- Klinik für Nephrologie, Zentralklinik Bad Berka GmbH, Bad Berka, Germany
| | - Wolfgang Miesbach
- Department of Hemostaseology-Hemophilia Center, University Hospital Frankfurt, Frankfurt, Germany
| | - Frederic Bauer
- Medical Department I, Marien Hospital Herne, Ruhr-University Bochum, Germany
| | - Timm H Westhoff
- Medical Department I, Marien Hospital Herne, Ruhr-University Bochum, Germany
| | - Heike Bruck
- Medical Clinic III, Helios Hospital Krefeld, Krefeld, Germany
| | - Veronika Buxhofer-Ausch
- Department of Internal Medicine I with Hematology, Stem Cell Transplantation, Hemostaseology and Medical Oncology, Ordensklinikum Linz Elisabethinen, Linz, Austria; Medical Faculty, Johannes Kepler University Linz, Linz, Austria
| | - Tobias J Müller
- Department of Neurology, University Hospital Ruppin-Brandenburg, Brandenburg Medical School, Neuruppin, Germany
| | - Ralph Wendt
- Department of Infectious Diseases/Tropical Medicine, Nephrology/KfH Renal Unit and Rheumatology, St. Georg Hospital Leipzig, Germany
| | - Ana Harth
- Department of Nephrology, Transplantation, and Medical Intensive Care, University Witten/Herdecke, Medical Centre Cologne-Merheim, Cologne, Germany
| | - Adrian Schreiber
- Department of Nephrology and Intensive Care Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany; Experimental and Clinical Research Center, Charité, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Evelyn Seelow
- Department of Nephrology and Intensive Care Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany; Experimental and Clinical Research Center, Charité, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Markus Tölle
- Charité-Universitätsmedizin Berlin, Cooperate Member of Freie Universität and Humboldt Universität, Department of Nephrology and Medical Intensive Care, Berlin, Germany
| | - Christopher Gohlisch
- Charité-Universitätsmedizin Berlin, Cooperate Member of Freie Universität and Humboldt Universität, Department of Nephrology and Medical Intensive Care, Berlin, Germany
| | - Markus Bieringer
- Department of Cardiology and Nephrology, Helios Klinik Berlin-Buch, Berlin, Germany
| | - Gesa Geuther
- Nordbadpraxis München-Praxis für Innere Medizin, Schwerpunktpraxis für Hämatologie, Onkologie, HIV und Palliativmedizin, München, Germany
| | - Wolfram J Jabs
- Department of Nephrology, Vivantes Klinikum im Friedrichshain, Berlin, Germany
| | - Michael Fischereder
- Nephrology Division, Department of Medicine IV, University Hospital, LMU Munich, Munich, Germany
| | | | - Ulf Schönermarck
- Nephrology Division, Department of Medicine IV, University Hospital, LMU Munich, Munich, Germany
| | - Paul Knoebl
- Division of Hematology and Hemostasis, Department of Medicine 1, Medical University of Vienna, Vienna, Austria
| | - Jan Menne
- KRH Klinikum Mitte-Location Siloah, Hannover, Germany
| | - Paul T Brinkkoetter
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany; Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases, Cologne, Germany.
| | | |
Collapse
|
3
|
Kühne L, Brüssermann S, De Santis KK, Jäckle S, Grimm S, Ha TH, Zeeb H. EsteR – Decision support for German health departments by
risk modelling in order to contain the COVID-19 pandemic. A rapid living
review. Das Gesundheitswesen 2022. [DOI: 10.1055/s-0042-1753829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- L Kühne
- Leibniz Institute for Prevention Research and Epidemiology –
BIPS, Prevention and Evaluation, Bremen, Deutschland
- Leibniz Science Campus Digital Public Health Bremen, Bremen,
Deutschland
| | - S Brüssermann
- Leibniz Institute for Prevention Research and Epidemiology –
BIPS, Prevention and Evaluation, Bremen, Deutschland
| | - KK De Santis
- Leibniz Institute for Prevention Research and Epidemiology –
BIPS, Prevention and Evaluation, Bremen, Deutschland
- Leibniz Science Campus Digital Public Health Bremen, Bremen,
Deutschland
| | - S Jäckle
- Fraunhofer Institute for Digital Medicine MEVIS,
Bremen/Lübeck, Deutschland
| | - S Grimm
- Fraunhofer Institute for Industrial Mathematics ITWM, Kaiserslautern,
Deutschland
| | - T-H Ha
- Fraunhofer Institute for Digital Medicine MEVIS,
Bremen/Lübeck, Deutschland
| | - H Zeeb
- Leibniz Institute for Prevention Research and Epidemiology –
BIPS, Prevention and Evaluation, Bremen, Deutschland
- Leibniz Science Campus Digital Public Health Bremen, Bremen,
Deutschland
- University of Bremen, Faculty of Human and Health Sciences, Public
Health, Bremen, Deutschland
| |
Collapse
|
4
|
Kühne L, Kaufeld J, Völker LA, Wendt R, Schönermarck U, Hägele H, Osterholt T, Eichenauer DA, Bieringer M, von Bergwelt-Baildon A, Fischereder M, Buxhofer-Ausch V, Menne J, Brinkkoetter PT, Knöbl P. Alternate-day dosing of caplacizumab for immune-mediated thrombotic thrombocytopenic purpura. J Thromb Haemost 2022; 20:951-960. [PMID: 35000278 DOI: 10.1111/jth.15637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 12/23/2021] [Accepted: 01/04/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND The anti-von Willebrand factor (VWF) nanobody caplacizumab directly prevents the fatal microthrombi formation in immune-mediated thrombotic thrombocytopenic purpura (iTTP), thereby adding a new therapeutic principle to the treatment of this disorder. However, real-world treatment modalities beyond clinical trials remain heterogeneous. METHODS Here, we describe the risks and benefits of an alternate-day dosing regimen for caplacizumab by thoroughly analyzing the timing and outcome of this approach in a retrospective cohort of 25 iTTP patients treated with caplacizumab at seven different medical centers in Austria and Germany between 2018 and 2021. RESULTS Alternate-day dosing of caplacizumab appeared feasible and led to persisting normal platelet counts in most patients. Five patients experienced iTTP exacerbations or relapses that led to the resumption of daily caplacizumab application. VWF activity was repeatedly measured in 16 of 25 patients and documented sufficient suppression by caplacizumab after 24 and 48 h in line with published pharmacodynamics. CONCLUSION Extension of caplacizumab application intervals from daily to alternate-day dosing may be safely considered in selected patients after 3 to 4 weeks of daily treatment. Earlier modifications may be discussed in low-risk patients but require close monitoring for clinical and laboratory features of thrombotic microangiopathy.
Collapse
Affiliation(s)
- Lucas Kühne
- Department II of Internal Medicine and Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne, Germany
| | - Jessica Kaufeld
- Department of Nephrology and Hypertension, Medical School Hannover, Hannover, Germany
| | - Linus A Völker
- Department II of Internal Medicine and Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne, Germany
| | - Ralph Wendt
- Department of Nephrology and Kuratorium for Dialysis and Transplantation Renal Unit, Hospital St. Georg, Leipzig, Germany
| | - Ulf Schönermarck
- Klinikum der Universität München - Medizinische Klinik und Poliklinik IV, Nephrologisches Zentrum, Munich, Germany
| | - Holger Hägele
- Department II of Internal Medicine and Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne, Germany
| | - Thomas Osterholt
- Department II of Internal Medicine and Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne, Germany
| | - Dennis A Eichenauer
- Department I of Internal Medicine, Center for Integrated Oncology, Aachen Bonn Cologne Dusseldorf, University of Cologne, Cologne, Germany
| | - Markus Bieringer
- Department of Cardiology and Nephrology, Helios Klinik Berlin-Buch, Berlin, Germany
| | - Anke von Bergwelt-Baildon
- Klinikum der Universität München - Medizinische Klinik und Poliklinik IV, Nephrologisches Zentrum, Munich, Germany
| | - Michael Fischereder
- Klinikum der Universität München - Medizinische Klinik und Poliklinik IV, Nephrologisches Zentrum, Munich, Germany
| | - Veronika Buxhofer-Ausch
- Department of Internal Medicine I with Hematology, Stem Cell Transplantation, Hemostaseology and Medical Oncology, Ordensklinikum Linz Elisabethinnen, Linz, Austria
- Medical Faculty, Johannes Kepler University Linz, Linz, Austria
| | - Jan Menne
- Department of Nephrology and Hypertension, Medical School Hannover, Hannover, Germany
| | - Paul T Brinkkoetter
- Department II of Internal Medicine and Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne, Germany
| | - Paul Knöbl
- Division of Hematology and Department of Medicine 1, Medical University of Vienna, Vienna, Austria
| |
Collapse
|
5
|
Busse H, Fialho PM, Stock C, Pischke CR, Buck C, Spatafora F, Kühne L, Zeeb H, Wendt C, Helmer SM. Mental wellbeing and engagement in health risk behaviours in German university students during the COVID-19 pandemic: Findings of a cross-sectional study. Eur J Public Health 2021. [DOI: 10.1093/eurpub/ckab164.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Daily life of higher education students across the world changed profoundly in 2020 with the implementation of governmental and institutional measures to control the COVID-19 pandemic. We investigated mental wellbeing and engagement in health risk behaviours (HRB) in German university students at the start of the COVID-19 pandemic.
Methods
Data stem from the COVID-19 International Student Wellbeing Study (C19 ISWS). The web-based survey was conducted in May 2020 at four German universities. HRBs included tobacco and cannabis use, alcohol consumption, and engagement in physical activity. All HRBs were assessed retrospectively and at the time of data collection. Mental wellbeing was assessed using the 8-item Center for Epidemiologic Studies-Depression Scale (CES-D 8). We conducted multinomial regression analyses to investigate factors associated with changes in HRBs and latent transition analysis to identify substance use profiles.
Results
5021 students completed the survey (69% female; mean age 24.4 years, SD = 5.1). The mean score for depressive symptoms was 9.25 (SD = 0.67, range 0-24). Sixty-one percent of students reported consuming alcohol, 46% binge drinking, 44% inactivity, 19% smoking and 11% cannabis use. While smoking and cannabis use remained unchanged during the COVID-19 pandemic, 24% reported a decrease in binge drinking. Changes to physical activity were frequently reported, with 31% reporting an increase and 19% reporting a decrease in vigorous physical activity. Higher depressive symptoms were found to be associated with changes in HRBs. Five substance use behaviour profiles were identified, which remained fairly unchanged.
Conclusions
Engagement in HRBs remains at high level during the COVID-19 pandemic among German students. Depressive symptoms were found to be associated with changes in HRBs. Efforts to promote student health and wellbeing are needed in times of the COVID-19 pandemic and thereafter to prevent longer-term consequences.
Collapse
Affiliation(s)
- H Busse
- Department Prevention and Evaluation, Leibniz Institute for Prevention Research and Epidemiology, BIPS, Bremen, Germany
| | - P M Fialho
- Institute of Medical Sociology, Centre for Health and Society, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
| | - C Stock
- Institute of Health and Nursing Science, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - CR Pischke
- Institute of Medical Sociology, Centre for Health and Society, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
| | - C Buck
- Department Biometry and Data Management, Leibniz Institute for Prevention Research and Epidemiology, BIPS, Bremen, Germany
| | - F Spatafora
- Institute of Medical Sociology, Centre for Health and Society, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany
| | - L Kühne
- Department Prevention and Evaluation, Leibniz Institute for Prevention Research and Epidemiology, BIPS, Bremen, Germany
| | - H Zeeb
- Department Prevention and Evaluation, Leibniz Institute for Prevention Research and Epidemiology, BIPS, Bremen, Germany
- Health Sciences Bremen, University of Bremen, Siegen, Germany
| | - C Wendt
- Department Sociology of Health and Health Care Systems, University Siegen, Siegen, Germany
| | - SM Helmer
- Institute of Health and Nursing Science, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| |
Collapse
|
6
|
Kühne L, Völker LA, Hagmann H, Hägele H, Osterholt T, Eichenauer DA, Thomas A, Breuer J, Grüttner B, Gottschalk I, Kann M, Benzing T, Thevis M, Müller AM, Brinkkoetter PT. First use of the anti-VWF nanobody caplacizumab to treat iTTP in pregnancy. Br J Haematol 2021; 196:e30-e33. [PMID: 34585743 DOI: 10.1111/bjh.17833] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/27/2021] [Accepted: 09/02/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Lucas Kühne
- Department II of Internal Medicine and Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany.,Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne, Germany
| | - Linus A Völker
- Department II of Internal Medicine and Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany.,Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne, Germany
| | - Henning Hagmann
- Department II of Internal Medicine and Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany.,Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne, Germany
| | - Holger Hägele
- Department II of Internal Medicine and Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany.,Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne, Germany
| | - Thomas Osterholt
- Department II of Internal Medicine and Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany.,Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne, Germany
| | - Dennis A Eichenauer
- Department I of Internal Medicine, Center for Integrated Oncology, Aachen Bonn Cologne Dusseldorf, University of Cologne, Cologne, Germany
| | - Andreas Thomas
- Center for Preventive Doping Research, Institute of Biochemistry, German Sport University Cologne, Cologne, Germany
| | - Johanna Breuer
- Center for Preventive Doping Research, Institute of Biochemistry, German Sport University Cologne, Cologne, Germany
| | - Berthold Grüttner
- Department of Obstetrics and Gynecology, University Hospital of Cologne, Cologne, Germany
| | - Ingo Gottschalk
- Department of Obstetrics and Gynecology, University Hospital of Cologne, Cologne, Germany
| | - Martin Kann
- Department II of Internal Medicine and Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany.,Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne, Germany
| | - Thomas Benzing
- Department II of Internal Medicine and Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany.,Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne, Germany
| | - Mario Thevis
- Center for Preventive Doping Research, Institute of Biochemistry, German Sport University Cologne, Cologne, Germany
| | - Annette M Müller
- Department of Pathology/Pediatric Pathology, University Hospital of Cologne, University of Cologne, Cologne, Germany
| | - Paul T Brinkkoetter
- Department II of Internal Medicine and Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany.,Cologne Cluster of Excellence on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne, Germany
| |
Collapse
|
7
|
Talyan S, Filipów S, Ignarski M, Smieszek M, Chen H, Kühne L, Butt L, Göbel H, Hoyer-Allo KJR, Koehler FC, Altmüller J, Brinkkötter P, Schermer B, Benzing T, Kann M, Müller RU, Dieterich C. CALINCA-A Novel Pipeline for the Identification of lncRNAs in Podocyte Disease. Cells 2021; 10:692. [PMID: 33804736 PMCID: PMC8003990 DOI: 10.3390/cells10030692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/13/2021] [Accepted: 03/15/2021] [Indexed: 11/16/2022] Open
Abstract
Diseases of the renal filtration unit-the glomerulus-are the most common cause of chronic kidney disease. Podocytes are the pivotal cell type for the function of this filter and focal-segmental glomerulosclerosis (FSGS) is a classic example of a podocytopathy leading to proteinuria and glomerular scarring. Currently, no targeted treatment of FSGS is available. This lack of therapeutic strategies is explained by a limited understanding of the defects in podocyte cell biology leading to FSGS. To date, most studies in the field have focused on protein-coding genes and their gene products. However, more than 80% of all transcripts produced by mammalian cells are actually non-coding. Here, long non-coding RNAs (lncRNAs) are a relatively novel class of transcripts and have not been systematically studied in FSGS to date. The appropriate tools to facilitate lncRNA research for the renal scientific community are urgently required due to a row of challenges compared to classical analysis pipelines optimized for coding RNA expression analysis. Here, we present the bioinformatic pipeline CALINCA as a solution for this problem. CALINCA automatically analyzes datasets from murine FSGS models and quantifies both annotated and de novo assembled lncRNAs. In addition, the tool provides in-depth information on podocyte specificity of these lncRNAs, as well as evolutionary conservation and expression in human datasets making this pipeline a crucial basis to lncRNA studies in FSGS.
Collapse
Affiliation(s)
- Sweta Talyan
- German Center for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, Im Neuenheimer Feld 669, 69120 Heidelberg, Germany;
- Section of Bioinformatics and Systems Cardiology, Klaus Tschira Institute for Integrative Computational Cardiology and Department of Internal Medicine III, Im Neuenheimer Feld 669, 69120 Heidelberg, Germany;
| | - Samantha Filipów
- Department II of Internal Medicine and Center for Molecular Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, 50931 Cologne, Germany; (S.F.); (M.I.); (H.C.); (L.K.); (L.B.); (K.J.R.H.-A.); (F.C.K.); (P.B.); (B.S.); (T.B.); (M.K.)
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931 Cologne, Germany
| | - Michael Ignarski
- Department II of Internal Medicine and Center for Molecular Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, 50931 Cologne, Germany; (S.F.); (M.I.); (H.C.); (L.K.); (L.B.); (K.J.R.H.-A.); (F.C.K.); (P.B.); (B.S.); (T.B.); (M.K.)
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931 Cologne, Germany
| | - Magdalena Smieszek
- Section of Bioinformatics and Systems Cardiology, Klaus Tschira Institute for Integrative Computational Cardiology and Department of Internal Medicine III, Im Neuenheimer Feld 669, 69120 Heidelberg, Germany;
| | - He Chen
- Department II of Internal Medicine and Center for Molecular Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, 50931 Cologne, Germany; (S.F.); (M.I.); (H.C.); (L.K.); (L.B.); (K.J.R.H.-A.); (F.C.K.); (P.B.); (B.S.); (T.B.); (M.K.)
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931 Cologne, Germany
| | - Lucas Kühne
- Department II of Internal Medicine and Center for Molecular Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, 50931 Cologne, Germany; (S.F.); (M.I.); (H.C.); (L.K.); (L.B.); (K.J.R.H.-A.); (F.C.K.); (P.B.); (B.S.); (T.B.); (M.K.)
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931 Cologne, Germany
| | - Linus Butt
- Department II of Internal Medicine and Center for Molecular Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, 50931 Cologne, Germany; (S.F.); (M.I.); (H.C.); (L.K.); (L.B.); (K.J.R.H.-A.); (F.C.K.); (P.B.); (B.S.); (T.B.); (M.K.)
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931 Cologne, Germany
| | - Heike Göbel
- Institute for Pathology, Diagnostic and Experimental Nephropathology Unit, University of Cologne, Faculty of Medicine and University Hospital Cologne, 50931 Cologne, Germany;
| | - K. Johanna R. Hoyer-Allo
- Department II of Internal Medicine and Center for Molecular Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, 50931 Cologne, Germany; (S.F.); (M.I.); (H.C.); (L.K.); (L.B.); (K.J.R.H.-A.); (F.C.K.); (P.B.); (B.S.); (T.B.); (M.K.)
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931 Cologne, Germany
| | - Felix C. Koehler
- Department II of Internal Medicine and Center for Molecular Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, 50931 Cologne, Germany; (S.F.); (M.I.); (H.C.); (L.K.); (L.B.); (K.J.R.H.-A.); (F.C.K.); (P.B.); (B.S.); (T.B.); (M.K.)
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931 Cologne, Germany
| | - Janine Altmüller
- Cologne Center for Genomics, University of Cologne, 50931 Cologne, Germany;
| | - Paul Brinkkötter
- Department II of Internal Medicine and Center for Molecular Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, 50931 Cologne, Germany; (S.F.); (M.I.); (H.C.); (L.K.); (L.B.); (K.J.R.H.-A.); (F.C.K.); (P.B.); (B.S.); (T.B.); (M.K.)
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931 Cologne, Germany
| | - Bernhard Schermer
- Department II of Internal Medicine and Center for Molecular Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, 50931 Cologne, Germany; (S.F.); (M.I.); (H.C.); (L.K.); (L.B.); (K.J.R.H.-A.); (F.C.K.); (P.B.); (B.S.); (T.B.); (M.K.)
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931 Cologne, Germany
| | - Thomas Benzing
- Department II of Internal Medicine and Center for Molecular Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, 50931 Cologne, Germany; (S.F.); (M.I.); (H.C.); (L.K.); (L.B.); (K.J.R.H.-A.); (F.C.K.); (P.B.); (B.S.); (T.B.); (M.K.)
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931 Cologne, Germany
| | - Martin Kann
- Department II of Internal Medicine and Center for Molecular Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, 50931 Cologne, Germany; (S.F.); (M.I.); (H.C.); (L.K.); (L.B.); (K.J.R.H.-A.); (F.C.K.); (P.B.); (B.S.); (T.B.); (M.K.)
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931 Cologne, Germany
| | - Roman-Ulrich Müller
- Department II of Internal Medicine and Center for Molecular Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, 50931 Cologne, Germany; (S.F.); (M.I.); (H.C.); (L.K.); (L.B.); (K.J.R.H.-A.); (F.C.K.); (P.B.); (B.S.); (T.B.); (M.K.)
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931 Cologne, Germany
| | - Christoph Dieterich
- German Center for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, Im Neuenheimer Feld 669, 69120 Heidelberg, Germany;
- Section of Bioinformatics and Systems Cardiology, Klaus Tschira Institute for Integrative Computational Cardiology and Department of Internal Medicine III, Im Neuenheimer Feld 669, 69120 Heidelberg, Germany;
| |
Collapse
|
8
|
Unnersjö-Jess D, Butt L, Höhne M, Witasp A, Kühne L, Hoyer PF, Patrakka J, Brinkkötter PT, Wernerson A, Schermer B, Benzing T, Scott L, Brismar H, Blom H. A fast and simple clearing and swelling protocol for 3D in-situ imaging of the kidney across scales. Kidney Int 2020; 99:1010-1020. [PMID: 33285146 DOI: 10.1016/j.kint.2020.10.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 10/02/2020] [Accepted: 10/15/2020] [Indexed: 11/29/2022]
Abstract
In recent years, many light-microscopy protocols have been published for visualization of nanoscale structures in the kidney. These protocols present researchers with new tools to evaluate both foot process anatomy and effacement, as well as protein distributions in foot processes, the slit diaphragm and in the glomerular basement membrane. However, these protocols either involve the application of different complicated super resolution microscopes or lengthy sample preparation protocols. Here, we present a fast and simple, five-hour long procedure for three-dimensional visualization of kidney morphology on all length scales. The protocol combines optical clearing and tissue expansion concepts to produce a mild swelling, sufficient for resolving nanoscale structures using a conventional confocal microscope. We show that the protocol can be applied to visualize a wide variety of pathologic features in both mouse and human kidneys. Thus, our fast and simple protocol can be beneficial for conventional microscopic evaluation of kidney tissue integrity both in research and possibly in future clinical routines.
Collapse
Affiliation(s)
- David Unnersjö-Jess
- Science for Life Laboratory, Department of Applied Physics, Royal Institute of Technology, Solna, Sweden; Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany.
| | - Linus Butt
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Martin Höhne
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany
| | - Anna Witasp
- Division of Renal Medicine, Department of Clinical Sciences, Intervention, and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Lucas Kühne
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany
| | - Peter F Hoyer
- Pediatric Nephrology, Pediatrics II, University of Duisburg-Essen, Essen, Germany
| | - Jaakko Patrakka
- KI/AZ Integrated CardioMetabolic Center, Department of Laboratory Medicine, Karolinska Institutet at Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Paul T Brinkkötter
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany
| | - Annika Wernerson
- Division of Renal Medicine, Department of Clinical Sciences, Intervention, and Technology, Karolinska Institutet, Stockholm, Sweden; Clinical Pathology and Cytology, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Bernhard Schermer
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany
| | - Thomas Benzing
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany
| | - Lena Scott
- Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Solna, Sweden
| | - Hjalmar Brismar
- Science for Life Laboratory, Department of Applied Physics, Royal Institute of Technology, Solna, Sweden; Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Solna, Sweden
| | - Hans Blom
- Science for Life Laboratory, Department of Applied Physics, Royal Institute of Technology, Solna, Sweden
| |
Collapse
|
9
|
Kühne L, Brinkkötter P. Ödeme – Kardinalsymptom des nephrotischen Syndroms. Dtsch Med Wochenschr 2019; 144:376-381. [DOI: 10.1055/a-0664-5507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
AbstractEdema is a common symptom with mostly extrarenal causes. Nevertheless, it may also be a sign of glomerular disease. So renal causes should always be clarified to avoid serious complications, such as renal insufficiency, cardiovascular or thrombembolic events. The determination of the albumin-creatinine ratio in spot urine is easy to perform and the method of choice to diagnose nephrotic-range proteinuria. Renal biopsy then usually allows the definitive assignement to either glomerular or systemic disease. Salt restriction in combination with diuretics and antiproteinuric treatment are essential for an effective therapy. Depending on the underlying disease and individual risk factors, anticoagulation should also be considered.
Collapse
|
10
|
Schuster A, Jung B, Hofbauer J, Kühne L, Zecher D, Banas B, Bergler T. B-cell activating factor BAFF reflects patients' immunological risk profile after kidney transplantation. Transpl Immunol 2017; 45:35-41. [PMID: 28867309 DOI: 10.1016/j.trim.2017.08.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 08/25/2017] [Accepted: 08/25/2017] [Indexed: 10/18/2022]
Abstract
The B-cell activating factor BAFF plays an important role in the development and maturation of B-lymphocytes, which can contribute to the generation of donor-specific antibodies and thus may influence graft function and graft survival. Inconsistent data on the role of BAFF levels after renal transplantation for the formation of donor-specific antibodies and the contribution for allograft rejection exist. The aim of the current study was to determine to what extent the degree of pre-immunization is reflected by each patient's BAFF levels before transplantation and in the follow-up. Furthermore, the impact of BAFF on allograft rejection frequency as well as severity and resulting allograft function over time was analyzed. Additionally, the impact of viral infections on BAFF levels after transplantation - as a potential confounder - was examined. For this purpose, a group of pre-sensitized patients (PRA>0%, (52±24% on average), n=40) was compared with non-sensitized patients (PRA=0%, n=62) and in a subsequent analysis stratification in accordance to the detected BAFF level was performed. Pre-sensitized patients had significantly higher BAFF levels before transplantation and suffered significantly more often from early steroid-resistant, mainly antibody-mediated rejections. A result which was confirmed also in highly sensitized patients with PRA levels >50%. Additionally, in the follow-up patients with either rising BAFF levels over time or BAFF levels above the median also had significantly more often antibody mediated rejections. Additionally, patients with BAFF levels above detected median even displayed impaired creatinine values as well as an induced eGFR slope up to month 48 after transplantation. The occurrence of viral infections (CMV, BKV) was only an additional influencing factor in the absence of concomitant allograft rejections. Therefore, the B-cell proliferation factor BAFF appears not only to reflect the immunological risk profile of patients in the context of kidney transplantation, it may possibly be further developed as a predictor of patients with an increased risk profile for subsequent allograft rejection and impaired allograft function.
Collapse
Affiliation(s)
- A Schuster
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany.
| | - B Jung
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - J Hofbauer
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - L Kühne
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - D Zecher
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - B Banas
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - T Bergler
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| |
Collapse
|
11
|
Pellengahr C, Wegener B, Anetzberger H, Maier M, Müller PE, Dürr H, Schulz C, Troullier H, Kühne L, Refior HJ. Medium to Long-term Results with the Cementless Threaded Acetabular Munich II Type Cup. Acta Chir Belg 2016. [DOI: 10.1080/00015458.2004.11679583] [Citation(s) in RCA: 1] [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] [Indexed: 10/28/2022]
Affiliation(s)
- C. Pellengahr
- Orthopädische Klinik und Poliklinik, Klinikum Großhadern, Ludwig-Maximilians-Universität, München, Germany ; Orthopädische Universitätsklinik, Universität Rostock, Germany
| | - B. Wegener
- Orthopädische Klinik und Poliklinik, Klinikum Großhadern, Ludwig-Maximilians-Universität, München, Germany ; Orthopädische Universitätsklinik, Universität Rostock, Germany
| | - H. Anetzberger
- Orthopädische Klinik und Poliklinik, Klinikum Großhadern, Ludwig-Maximilians-Universität, München, Germany ; Orthopädische Universitätsklinik, Universität Rostock, Germany
| | - M. Maier
- Orthopädische Klinik und Poliklinik, Klinikum Großhadern, Ludwig-Maximilians-Universität, München, Germany ; Orthopädische Universitätsklinik, Universität Rostock, Germany
| | - P. E. Müller
- Orthopädische Klinik und Poliklinik, Klinikum Großhadern, Ludwig-Maximilians-Universität, München, Germany ; Orthopädische Universitätsklinik, Universität Rostock, Germany
| | - H.R. Dürr
- Orthopädische Klinik und Poliklinik, Klinikum Großhadern, Ludwig-Maximilians-Universität, München, Germany ; Orthopädische Universitätsklinik, Universität Rostock, Germany
| | - C. Schulz
- Orthopädische Klinik und Poliklinik, Klinikum Großhadern, Ludwig-Maximilians-Universität, München, Germany ; Orthopädische Universitätsklinik, Universität Rostock, Germany
| | - H. Troullier
- Orthopädische Klinik und Poliklinik, Klinikum Großhadern, Ludwig-Maximilians-Universität, München, Germany ; Orthopädische Universitätsklinik, Universität Rostock, Germany
| | - L. Kühne
- Orthopädische Klinik und Poliklinik, Klinikum Großhadern, Ludwig-Maximilians-Universität, München, Germany ; Orthopädische Universitätsklinik, Universität Rostock, Germany
| | - H. J. Refior
- Orthopädische Klinik und Poliklinik, Klinikum Großhadern, Ludwig-Maximilians-Universität, München, Germany ; Orthopädische Universitätsklinik, Universität Rostock, Germany
| |
Collapse
|
12
|
Grahammer F, Ramakrishnan SK, Rinschen MM, Larionov AA, Syed M, Khatib H, Roerden M, Sass JO, Helmstaedter M, Osenberg D, Kühne L, Kretz O, Wanner N, Jouret F, Benzing T, Artunc F, Huber TB, Theilig F. mTOR Regulates Endocytosis and Nutrient Transport in Proximal Tubular Cells. J Am Soc Nephrol 2016; 28:230-241. [PMID: 27297946 DOI: 10.1681/asn.2015111224] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 05/14/2016] [Indexed: 01/03/2023] Open
Abstract
Renal proximal tubular cells constantly recycle nutrients to ensure minimal loss of vital substrates into the urine. Although most of the transport mechanisms have been discovered at the molecular level, little is known about the factors regulating these processes. Here, we show that mTORC1 and mTORC2 specifically and synergistically regulate PTC endocytosis and transport processes. Using a conditional mouse genetic approach to disable nonredundant subunits of mTORC1, mTORC2, or both, we showed that mice lacking mTORC1 or mTORC1/mTORC2 but not mTORC2 alone develop a Fanconi-like syndrome of glucosuria, phosphaturia, aminoaciduria, low molecular weight proteinuria, and albuminuria. Interestingly, proteomics and phosphoproteomics of freshly isolated kidney cortex identified either reduced expression or loss of phosphorylation at critical residues of different classes of specific transport proteins. Functionally, this resulted in reduced nutrient transport and a profound perturbation of the endocytic machinery, despite preserved absolute expression of the main scavenger receptors, MEGALIN and CUBILIN. Our findings highlight a novel mTOR-dependent regulatory network for nutrient transport in renal proximal tubular cells.
Collapse
Affiliation(s)
- Florian Grahammer
- Department of Medicine IV, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Suresh K Ramakrishnan
- Institute of Anatomy, Department of Medicine, University of Fribourg, Fribourg, Switzerland
| | - Markus M Rinschen
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Alexey A Larionov
- Institute of Anatomy, Department of Medicine, University of Fribourg, Fribourg, Switzerland
| | - Maryam Syed
- Institute of Anatomy, Department of Medicine, University of Fribourg, Fribourg, Switzerland
| | - Hazim Khatib
- Department of Medical IV, Sektion Nieren- und Hochdruckkrankheiten, University of Tübingen, Tübingen, Germany
| | - Malte Roerden
- Department of Medical IV, Sektion Nieren- und Hochdruckkrankheiten, University of Tübingen, Tübingen, Germany
| | - Jörn Oliver Sass
- Bioanalytics and Biochemistry, Department of Natural Sciences, Bonn Rhein Sieg University of Applied Sciences, Rheinbach, Germany.,Division of Clinical Chemistry and Biochemistry and Children's Research Centre, University Children's Hospital Zürich, Zurich, Switzerland
| | - Martin Helmstaedter
- Department of Medicine IV, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Dorothea Osenberg
- Department of Medicine IV, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Lucas Kühne
- Department of Medicine IV, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Oliver Kretz
- Department of Medicine IV, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Nicola Wanner
- Department of Medicine IV, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Francois Jouret
- Groupe Interdisciplinaire de Génoprotéomique Appliquée, Cardiovascular Sciences, University of Liège, Liege, Belgium; and
| | - Thomas Benzing
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Ferruh Artunc
- Department of Medical IV, Sektion Nieren- und Hochdruckkrankheiten, University of Tübingen, Tübingen, Germany
| | - Tobias B Huber
- Department of Medicine IV, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany; .,BIOSS, Centre for Biological Signalling Studies and.,FRIAS, Freiburg Institute for Advanced Studies and ZBSA, Center for Biological System Analysis, Albert Ludwigs University of Freiburg, Freiburg, Germany
| | - Franziska Theilig
- Institute of Anatomy, Department of Medicine, University of Fribourg, Fribourg, Switzerland;
| |
Collapse
|
13
|
Salameh A, Einenkel A, Kühne L, Grassl M, von Salisch S, Vollroth M, Kiefer P, Dhein S, Dähnert I. Hippocampal Neuroprotection by Minocycline or Epigallocatechin-3-Gallate against Cardiopulmonary Bypass-Associated Injury. Thorac Cardiovasc Surg 2015. [DOI: 10.1055/s-0035-1555979] [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: 10/23/2022]
|
14
|
Kühne L, Maurer S, Dettmar P, Knitza R, Kolben M. Zyklusabhängige Beschwerdesymptomatik nach vaginaler Hysterektomie mit Morcellement infolge der inkompletten Entfernung eines Uterus mit fokaler intramuraler Endometriose. Geburtshilfe Frauenheilkd 2004. [DOI: 10.1055/s-2004-830392] [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: 10/26/2022] Open
|
15
|
Pellengahr C, Wegener B, Anetzberger H, Maier M, Müller PE, Dürr HR, Schulz C, Troullier H, Kühne L, Refior HJ. Medium to long-term results with the cementless threaded Acetabular Munich II type cup. Acta Chir Belg 2004; 104:413-7. [PMID: 15469152] [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: 04/30/2023]
Abstract
Compared to pressfit cups, little information exists about the results of screwed cups in hip arthroplasty. 51 cementless or hybrid (cemented stem) primary total hip replacements with a cementless corundium blasted titaniumn alloy threaded Aesculap Munich II type cup were examined with a mean follow up of 7.9 years. 23 of the patients were male and 28 patients were female. From these cups 22 were implanted on the right side and 29 on the left. The results were compared to 53 patients (28 male, 25 female, 29 right side, 24 left side) with the threaded Aesculap Munich I type cup, that has a smooth surface and a direct contact of bone with the polyethylene inlay. The mean follow up ws 10.2 years. The early and medium to long-term clinical and radiographic results show an encouraging improvement of the Merle d'Aubigné Score of the type II cup compared to the type I cup. Two of the Aesculap type Munich II cups had to be revised; four showed radiologic signs of loosening. In conclusion, the threaded Aesculap cup type Munich II seems to be a decisive advance in the development of threaded acetabular hip cups. The intermediate results exceed those from smooth-surface screwed rings and compare favourably with those from cemented cups and with those from cementless press-fit metal-backed cups.
Collapse
Affiliation(s)
- C Pellengahr
- Orthopädische Klinik und Poliklinik, Klinikum Grosshadern, Ludwig-Maximilians-Universität, München, Germany
| | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Rommerts FFG, Kühne L, van Cappellen GWA, Stocco DM, King SR, Jankowska A. Specific dose-dependent effects of ethane 1,2-dimethanesulfonate in rat and mouse Leydig cells and non-steroidogenic cells on programmed cell death. J Endocrinol 2004; 181:169-78. [PMID: 15072577 DOI: 10.1677/joe.0.1810169] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The mechanism by which ethane 1,2-dimethanesulfonate (EDS) selectively kills Leydig cells is poorly understood. To characterize further the cell-specific actions of EDS, we studied biochemical and morphological changes during apoptosis in different Leydig cell and non-steroidogenic cell models. Rat testicular and H540 tumor Leydig cells were killed by 1-2 mM EDS, whereas 20 mM EDS were required for MA-10 cells. This higher concentration of EDS was also necessary for activation of apoptosis in non-steroidogenic Chinese hamster ovary cells, whereas COS-1 monkey kidney cells were resistant. These variable effects of EDS on apoptosis were independent of new protein synthesis and, interestingly, could be delayed by co-incubation with dibutyrl cyclic AMP. Along with cell death, we also observed chromosomal fragmentation and other hallmarks indicative of apoptosis as evidenced by DNA laddering and fluorescent microscopy. Time-lapse photography with a confocal microscope showed that the time of onset, duration and even the sequence of apoptotic events between individual H540 cells was heterogeneous. When the dose of EDS was gradually increased from 2 to 10 mM, the proportion of cells showing normal apoptotic features gradually decreased. Intriguingly, treatment with 10 mM EDS did not result in death for most cells and was marked by an absence of DNA laddering and ultrastructural features of apoptosis and necrosis. However, incubation with 20 mM EDS resulted in necrosis.These results demonstrated that the effects of EDS on cell survival are not specific to Leydig cells, that different cell types have different sensitivities to EDS and that stimulation of the cAMP pathway may mitigate EDS action. The data obtained with H540 cells further revealed that EDS can induce two types of programmed cell death.
Collapse
Affiliation(s)
- F F G Rommerts
- Department of Internal Medicine, Erasmus Medical Center Rotterdam, PO Box 1738, DR Rotterdam, The Netherlands
| | | | | | | | | | | |
Collapse
|
17
|
Affiliation(s)
- J. Odermatt
- Institute of Wood Chemistry, University of Hamburg, D-21031 Hamburg, Germany
| | - O. Kordsachia
- Institute of Wood Chemistry, University of Hamburg, D-21031 Hamburg, Germany
| | - R. Patt
- Institute of Wood Chemistry, University of Hamburg, D-21031 Hamburg, Germany
| | - L. Kühne
- Institute of Wood Chemistry, University of Hamburg, D-21031 Hamburg, Germany
| | - C.-L. Chen
- Department of Wood and Paper Science, North Carolina State University, Raleigh, NC 27695-8005
| | - J. S. Gratzl
- Department of Wood and Paper Science, North Carolina State University, Raleigh, NC 27695-8005
| |
Collapse
|
18
|
Mols G, Kessler V, Benzing A, Schneider M, Kühne L, Geiger K, Guttmann J. The Traveling Shutter Wave analyses non-linear compliance during mechanical ventilation. Technol Health Care 1999; 7:309-17. [PMID: 10461795] [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: 02/13/2023]
Abstract
Mechanical ventilation is an important, often life-saving component of modern intensive care medicine. However, it may further aggravate pulmonary pathology by endinspiratory overdistension of the alveoli or by their endexpiratory collapse. To prevent both the ventilator may be adjusted based on the slope of the pressure-volume curve, named as compliance, which is often determined by a stepwise inflation of the lungs. This maneuver gained no widespread clinical acceptance because of being cumbersome and invasive. Therefore, we developed a modification of the well known interrupter technique - the Traveling Shutter Wave. A wave of short-term (300 ms) occlusions "travels" over the tidal volume range. Differential compliance is calculated by division of volume and pressure differences between two adjacent occlusion maneuvers. The technique is well suited for the clinical setting because the ventilatory pattern does not need to be changed. This manuscript describes the realization of the Traveling Shutter Wave as well as its application in two patients.
Collapse
Affiliation(s)
- G Mols
- Department of Anesthesiology and Critical Care Medicine, University of Freiburg, Germany.
| | | | | | | | | | | | | |
Collapse
|
19
|
Steffgen J, Burckhardt BC, Langenberg C, Kühne L, Müller GA, Burckhardt G, Wolff NA. Expression cloning and characterization of a novel sodium-dicarboxylate cotransporter from winter flounder kidney. J Biol Chem 1999; 274:20191-6. [PMID: 10400635 DOI: 10.1074/jbc.274.29.20191] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [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: 11/06/2022] Open
Abstract
A cDNA coding for a Na+-dicarboxylate cotransporter, fNaDC-3, from winter flounder (Pseudopleuronectes americanus) kidney was isolated by functional expression in Xenopus laevis oocytes. The fNaDC-3 cDNA is 2384 nucleotides long and encodes a protein of 601 amino acids with a calculated molecular mass of 66.4 kDa. Secondary structure analysis predicts at least eight membrane-spanning domains. Transport of succinate by fNaDC-3 was sodium-dependent, could be inhibited by lithium, and evoked an inward current. The apparent affinity constant (Km) of fNaDC-3 for succinate of 30 microM resembles that of Na+-dicarboxylate transport in the basolateral membrane of mammalian renal proximal tubules. The substrates specific for the basolateral transporter, 2,3-dimethylsuccinate and cis-aconitate, not only inhibited succinate uptake but also evoked inward currents, proving that they are transported by fNaDC-3. Succinate transport via fNaDC-3 decreased by lowering pH, as did citrate transport, although much more moderately. These characteristics suggest that fNaDC-3 is a new type of Na+-dicarboxylate transporter that most likely corresponds to the Na+-dicarboxylate cotransporter in the basolateral membrane of mammalian renal proximal tubules.
Collapse
Affiliation(s)
- J Steffgen
- Abteilung Nephrologie und Rheumatologie, Georg-August-Universität Göttingen, Robert-Koch-Strasse 40, D-37075 Göttingen, Germany.
| | | | | | | | | | | | | |
Collapse
|
20
|
Steinhoff B, Rüllmann M, Kühne L, Alig I. Phase separation kinetics in a binary mixture of polyethylene glycol and polypropylene glycol studied by light scattering after a pressure jump: Pinning of domain growth by hydrogen bond structures. J Chem Phys 1997. [DOI: 10.1063/1.474885] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|