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Michels S, Massutí B, Vasyliv I, Stratmann J, Frank J, Adams A, Felip E, Grohé C, Rodriguez-Abreu D, Bischoff H, Carcereny I Costa E, Corral J, Pereira E, Fassunke J, Fischer RN, Insa A, Koleczko S, Nogova L, Reck M, Reutter T, Riedel R, Schaufler D, Scheffler M, Weisthoff M, Provencio M, Merkelbach-Bruse S, Hellmich M, Sebastian M, Büttner R, Persigehl T, Rosell R, Wolf J. Overall survival and central nervous system activity of crizotinib in ROS1-rearranged lung cancer-final results of the EUCROSS trial. ESMO Open 2024; 9:102237. [PMID: 38350336 PMCID: PMC10937203 DOI: 10.1016/j.esmoop.2024.102237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 12/12/2023] [Accepted: 01/07/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND In 2019, we reported the first efficacy and safety analysis of EUCROSS, a phase II trial investigating crizotinib in ROS1 fusion-positive lung cancer. At that time, overall survival (OS) was immature and the effect of crizotinib on intracranial disease control remained unclear. Here, we present the final analysis of OS, systemic and intracranial activity, and the impact of co-occurring aberrations. MATERIALS AND METHODS EUCROSS was a prospective, single-arm, phase II trial. The primary endpoint was best overall response rate (ORR) using RECIST 1.1. Secondary and exploratory endpoints were progression-free survival (PFS), OS, and efficacy in pre-defined subgroups. RESULTS Median OS of the intention-to-treat population (N = 34) was 54.8 months [95% confidence interval (CI) 20.3 months-not reached (NR); median follow-up 81.4 months] and median all-cause PFS of the response-evaluable population (N = 30) was 19.4 months (95% CI 10.1-32.2 months). Time on treatment was significantly correlated with OS (R = 0.82; P < 0.0001). Patients with co-occurring TP53 aberrations (28%) had a significantly shorter OS [hazard ratio (HR) 11; 95% CI 2.0-56.0; P = 0.006] and all-cause PFS (HR 4.2; 95% CI 1.2-15; P = 0.025). Patients with central nervous system (CNS) involvement at baseline (N = 6; 20%) had a numerically shorter median OS and all-cause PFS. Median intracranial PFS was 32.2 months (95% CI 23.7 months-NR) and the rate of isolated CNS progression was 24%. CONCLUSIONS Our final analysis proves the efficacy of crizotinib in ROS1-positive lung cancer, but also highlights the devastating impact of TP53 mutations on survival and treatment efficacy. Additionally, our data show that CNS disease control is durable and the risk of CNS progression while on crizotinib treatment is low.
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Affiliation(s)
- S Michels
- Department I for Internal Medicine and Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, University of Cologne, Faculty of Medicine and University Hospital of Cologne, Lung Cancer Group Cologne, Cologne, Germany.
| | - B Massutí
- Department for Oncology, Alicante University Hospital-ISABIAL, Alicante, Spain
| | - I Vasyliv
- University of Cologne, Faculty of Medicine and University Hospital of Colone, Department of Radiology and Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, Cologne, Germany
| | - J Stratmann
- Department of Hematology and Oncology, University Hospital of Frankfurt, Frankfurt am Main
| | - J Frank
- Faculty of Medicine and University Hospital of Cologne, Institute of Medical Statistics and Computational Biology, University of Cologne, Cologne, Germany
| | - A Adams
- Faculty of Medicine and University Hospital of Cologne, Institute of Medical Statistics and Computational Biology, University of Cologne, Cologne, Germany
| | - E Felip
- Vall d'Hebron Institute of Oncology, Vall d'Hebron University Hospital, Barcelona, Spain
| | - C Grohé
- Department of Respiratory Medicine, ELK Berlin, Berlin, Germany
| | - D Rodriguez-Abreu
- Universidad de Las Palmas de Gran Canaria, Complejo Hospitalario Universitario Insular Materno-Infantil de Gran Canaria, Gran Canaria, Spain
| | - H Bischoff
- Thoraxonkologie, Thoraxklinik, Heidelberg, Germany
| | - E Carcereny I Costa
- Medical Oncology Department, Catalan Institute of Oncology (ICO)-Badalona and Badalona-Applied Research Group in Oncology (B-ARGO), Badalona
| | - J Corral
- Department for Medical Oncology, Clínica Universidad de Navarra, Madrid
| | - E Pereira
- Spanish Lung Cancer Group, Barcelona, Spain
| | - J Fassunke
- University of Cologne, Faculty of Medicine and University Hospital of Cologne, Lung Cancer Group Cologne, Institute of Pathology and Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, Cologne, Germany
| | - R N Fischer
- Department I for Internal Medicine and Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, University of Cologne, Faculty of Medicine and University Hospital of Cologne, Lung Cancer Group Cologne, Cologne, Germany
| | - A Insa
- Hospital Clínico Universitario de Valencia, València, Spain
| | - S Koleczko
- Department I for Internal Medicine and Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, University of Cologne, Faculty of Medicine and University Hospital of Cologne, Lung Cancer Group Cologne, Cologne, Germany
| | - L Nogova
- Department I for Internal Medicine and Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, University of Cologne, Faculty of Medicine and University Hospital of Cologne, Lung Cancer Group Cologne, Cologne, Germany
| | - M Reck
- Department for Thoracic Oncology, LungenClinic Grosshansdorf, Airway Research Center North (ARCN), German Center for Lung Research, Großhansdorf
| | - T Reutter
- Department I for Internal Medicine and Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, University of Cologne, Faculty of Medicine and University Hospital of Cologne, Lung Cancer Group Cologne, Cologne, Germany; Department of Oncology, Asklepios Clinic Altona, Hematology, Palliative Care and Rheumatology, Asklepios Tumorzentrum Hamburg, Hamburg, Germany
| | - R Riedel
- Department I for Internal Medicine and Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, University of Cologne, Faculty of Medicine and University Hospital of Cologne, Lung Cancer Group Cologne, Cologne, Germany
| | - D Schaufler
- Department I for Internal Medicine and Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, University of Cologne, Faculty of Medicine and University Hospital of Cologne, Lung Cancer Group Cologne, Cologne, Germany
| | - M Scheffler
- Department I for Internal Medicine and Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, University of Cologne, Faculty of Medicine and University Hospital of Cologne, Lung Cancer Group Cologne, Cologne, Germany
| | - M Weisthoff
- University of Cologne, Faculty of Medicine and University Hospital of Colone, Department of Radiology and Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, Cologne, Germany
| | - M Provencio
- Department of Medical Oncology, Hospital Universitario Puerta de Hierro de Majadahonda, Madrid
| | - S Merkelbach-Bruse
- University of Cologne, Faculty of Medicine and University Hospital of Cologne, Lung Cancer Group Cologne, Institute of Pathology and Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, Cologne, Germany
| | - M Hellmich
- Faculty of Medicine and University Hospital of Cologne, Institute of Medical Statistics and Computational Biology, University of Cologne, Cologne, Germany
| | - M Sebastian
- Department of Hematology and Oncology, University Hospital of Frankfurt, Frankfurt am Main
| | - R Büttner
- University of Cologne, Faculty of Medicine and University Hospital of Cologne, Lung Cancer Group Cologne, Institute of Pathology and Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, Cologne, Germany
| | - T Persigehl
- University of Cologne, Faculty of Medicine and University Hospital of Colone, Department of Radiology and Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, Cologne, Germany
| | - R Rosell
- Germans Trias i Pujol Research Institute (IGTP), Badalona; Quiron Dexeus University Hospital, Institute of Oncology Rosell (IOR), Barcelona, Spain
| | - J Wolf
- Department I for Internal Medicine and Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, University of Cologne, Faculty of Medicine and University Hospital of Cologne, Lung Cancer Group Cologne, Cologne, Germany
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Glaser M, von Levetzow C, Michels S, Nogova L, Katzenmeier M, Wömpner C, Schmitz J, Bitter E, Terjung I, Passmann E, Schaufler D, Eisert A, Fischer R, Riedel R, Hahne S, Merkelbach-Bruse S, Büttner R, Wolf J, Scheffler M. 9P Small-scale ROS1 aberrations: Functional impact and therapeutic potential. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Fischer R, George J, Scheel A, Schloesser H, Brossart P, Engel-Riedel W, Griesinger F, Grohé C, Kern J, Panse J, Sebastian M, Serke M, Wiewrodt R, Michels S, Nogova L, Riedel R, Weber JP, Büttner R, Thomas R, Wolf J. 1028P BIOLUMA: A phase II trial of nivolumab in combination with ipilimumab to evaluate efficacy and safety in lung cancer and to evaluate biomarkers predictive for response – results from the NSCLC cohort. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Scheffler M, Dugan M, Saleh M, Koleczko S, Brägelmann J, Arolt C, Nogova L, Riedel R, Michels S, Eisert A, Fischer R, Scharpenseel H, Weber JP, Scheel A, Merkelbach-Bruse S, Büttner R, Lafleur F, Wild R, Catanzariti L, Hillmer A, Wolf J. EP08.02-106 KEAP1/NFE2L2 Transcriptomic Signature Predicts Survival in Advanced Stage NSCLC Patients Without Actionable Driver Mutations. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.789] [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: 10/14/2022]
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Glaser M, von Levetzow C, Michels S, Nogova L, Katzenmeier M, Wömpner C, Schmitz J, Bitter E, Terjung I, Passmann E, Schaufler D, Eisert A, Fischer R, Riedel R, Weber JP, Hahne S, Merkelbach-Bruse S, Büttner R, Wolf J, Scheffler M. EP08.02-114 Comprehensive Analysis of ROS1 Aberrations without Rearrangements in Non-small cell Lung Cancer Patients. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kron A, Scheffler M, Ihle M, Michels S, Süptitz J, Prang D, Jakobs F, Nogova L, Fischer R, Eisert A, Riedel R, Kron F, Hillmer A, Loges S, Merkelbach-Bruse S, Büttner R, Wolf J. 991P EGFR exon 20 insertions in non-small cell lung cancer (NSCLC): Impact of TP53 mutation status and value of immune checkpoint blockade (ICB). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Münkler P, Klatt N, Scherschel K, Kuklik P, Jungen C, Cavus E, Eickholt C, Christoph J, Lemoine MD, Christ T, Willems S, Riedel R, Kirchhof P, Meyer C. Repolarization indicates electrical instability in ventricular arrhythmia originating from papillary muscle. Europace 2022; 25:688-697. [PMID: 35989424 PMCID: PMC9935011 DOI: 10.1093/europace/euac126] [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: 12/18/2021] [Accepted: 06/30/2022] [Indexed: 11/12/2022] Open
Abstract
AIMS Cardiac arrhythmia originating from the papillary muscle (PM) can trigger ventricular fibrillation (VF) and cause sudden cardiac death even in the absence of structural heart disease. Most premature ventricular contractions, however, are benign and hitherto difficult to distinguish from a potentially fatal arrhythmia. Altered repolarization characteristics are associated with electrical instability, but electrophysiological changes which precede degeneration into VF are still not fully understood. METHODS AND RESULTS Ventricular arrhythmia (VA) was induced by aconitine injection into PMs of healthy sheep. To investigate mechanisms of degeneration of stable VA into VF in structurally healthy hearts, endocardial high-density and epicardial mapping was performed during sinus rhythm (SR) and VA. The electrical restitution curve, modelling the relation of diastolic interval and activation recovery interval (a surrogate parameter for action potential duration), is steeper in VA than in non-arrhythmia (ventricular pacing and SR). Steeper restitution curves reflect electrical instability and propensity to degenerate into VF. Importantly, we find the parameter repolarization time in relation to cycle length (RT/CL) to differentiate self-limiting from degenerating arrhythmia with high specificity and sensitivity. CONCLUSION RT/CL may serve as a simple index to aid differentiation between self-limiting and electrically instable arrhythmia with the propensity to degenerate to VF. RT/CL is independent of cycle length and could easily be measured to identify electrical instability in patients.
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Affiliation(s)
- Paula Münkler
- Corresponding author. Tel: +49 040 7410 0; fax: +49 040 7410 55862. E-mail address:
| | - Niklas Klatt
- Department of Cardiology, University Heart and Vascular Center Hamburg, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Katharina Scherschel
- Department of Cardiology, University Heart and Vascular Center Hamburg, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany,DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Berlin, Germany,Division of Cardiology, Angiology and Intensive Care, Cardiac Neuro- and Electrophysiology Research Consortium (cNEP), EKV Düsseldorf, Düsseldorf, Germany,Cardiac Neuro- and Electrophysiology Research Consortium (cNEP), Medical Faculty, Heinrich Heine University Düsseldorf, Kirchfeldstraße 40, 40217, Düsseldorf, Germany
| | - Pawel Kuklik
- Department of Cardiology, University Heart and Vascular Center Hamburg, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany,Department of Cardiology, Asklepios Hospital St Georg, Lohmühlenstraße 5, 20099, Hamburg, Germany
| | - Christiane Jungen
- Department of Cardiology, University Heart and Vascular Center Hamburg, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany,DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Berlin, Germany,Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Ersin Cavus
- Department of Cardiology, University Heart and Vascular Center Hamburg, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Christian Eickholt
- Department of Cardiology, University Heart and Vascular Center Hamburg, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany,Department of Cardiology, Asklepios Hospital St Georg, Lohmühlenstraße 5, 20099, Hamburg, Germany
| | - Jan Christoph
- Cardiovascular Research Institute University of California, San Francisco, 555 Mission Bay Blvd South, 352S, San Francisco, CA, USA
| | - Marc D Lemoine
- Department of Cardiology, University Heart and Vascular Center Hamburg, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany,DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Berlin, Germany
| | - Torsten Christ
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Berlin, Germany,Institute of Experimental Pharmacology and Toxicology, University Medical Centre, Martinistraße 52, 20246 Hamburg, Germany
| | - Stephan Willems
- Department of Cardiology, University Heart and Vascular Center Hamburg, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany,DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Berlin, Germany,Department of Cardiology, Asklepios Hospital St Georg, Lohmühlenstraße 5, 20099, Hamburg, Germany
| | - René Riedel
- Department of Cardiology, University Heart and Vascular Center Hamburg, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany,Max Planck Institute for Evolutionary Biology, Plön, Germany,German Rheumatism Research Centre Berlin—an Institute of the Leibniz Association, Berlin, Germany
| | - Paulus Kirchhof
- Department of Cardiology, University Heart and Vascular Center Hamburg, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany,DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Berlin, Germany,Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | - Christian Meyer
- Department of Cardiology, University Heart and Vascular Center Hamburg, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany,DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Berlin, Germany,Division of Cardiology, Angiology and Intensive Care, Cardiac Neuro- and Electrophysiology Research Consortium (cNEP), EKV Düsseldorf, Düsseldorf, Germany,Cardiac Neuro- and Electrophysiology Research Consortium (cNEP), Medical Faculty, Heinrich Heine University Düsseldorf, Kirchfeldstraße 40, 40217, Düsseldorf, Germany
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Skopnik CM, Riedel R, Addo RK, Heinz GA, Heinrich F, Honjo K, Durek P, Enghard P, Mashreghi MF, Radbruch A, Kubagawa H. Questioning whether IgM Fc receptor (FcµR) is expressed by innate immune cells. Nat Commun 2022; 13:3951. [PMID: 35817797 PMCID: PMC9273587 DOI: 10.1038/s41467-022-29407-0] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 01/17/2022] [Indexed: 11/24/2022] Open
Affiliation(s)
| | - René Riedel
- Deutsches Rheuma-Forschungszentrum in Berlin, 10117, Berlin, Germany
| | - Richard K Addo
- Deutsches Rheuma-Forschungszentrum in Berlin, 10117, Berlin, Germany
| | - Gitta Anne Heinz
- Deutsches Rheuma-Forschungszentrum in Berlin, 10117, Berlin, Germany
| | - Frederik Heinrich
- Deutsches Rheuma-Forschungszentrum in Berlin, 10117, Berlin, Germany
| | - Kazuhito Honjo
- School of Medicine, University of Alabama at Birmingham, Birmingham, AL, 35209, USA
| | - Pawel Durek
- Deutsches Rheuma-Forschungszentrum in Berlin, 10117, Berlin, Germany
| | - Philipp Enghard
- Department of Nephrology and Medical Intensive Care, Charité-Universitätmedizin, 10117, Berlin, Germany
| | | | - Andreas Radbruch
- Deutsches Rheuma-Forschungszentrum in Berlin, 10117, Berlin, Germany
| | - Hiromi Kubagawa
- Deutsches Rheuma-Forschungszentrum in Berlin, 10117, Berlin, Germany.
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Boudjelel M, Riedel R, Schrock RR, Conley MP, Berges AJ, Carta V. Tungstacyclopentane Ring Contraction Yields Olefin Metathesis Catalysts. J Am Chem Soc 2022; 144:10929-10942. [PMID: 35675389 DOI: 10.1021/jacs.2c03732] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Exposure of a solution of the square pyramidal tungstacyclopentane complex W(NAr)(OSiPh3)2(C4H8) (Ar = 2,6-i-Pr2C6H3) to ethylene at 22 °C in ambient (fluorescent) light slowly leads to the formation of propylene and the square pyramidal tungstacyclobutane complex W(NAr)(OSiPh3)2(C3H6). No reaction takes place in the dark, but the reaction is >90% complete in ∼15 min under blue LED light (∼450 nm λmax). The intermediates are proposed to be (first) an α methyl tungstacyclobutane complex (W(NAr)(OSiPh3)2(αMeC3H5)), and then from it, a β methyl version. The TBP versions of each can lose propylene and form a methylene complex, and in the presence of ethylene, the unsubstituted tungstacyclobutane complex W(NAr)(OSiPh3)2(C3H6). The W-Cα bond in an unobservable TBP W(NAr)(OSiPh3)2(C4H8) isomer in which the C4H8 ring is equatorial is proposed to be cleaved homolytically by light. A hydrogen atom moves or is moved from C3 to the terminal C4 carbon in the butyl chain as the bond between W and C3 forms to give the TBP α methyl tungstacyclobutane complex. Essentially, the same behavior is observed for W(NCPh3)(OSiPh3)2(C4H8) as for W(NAr)(OSiPh3)2(C4H8), except that the rate of consumption of W(NCPh3)(OSiPh3)2(C4H8) is about half that of W(NAr)(OSiPh3)2(C4H8). In this case, an α methyl-substituted tungstacyclobutane intermediate is observed, and the overall rate of formation of W(NCPh3)(OSiPh3)2(C3H6) and propylene from W(NCPh3)(OSiPh3)2(C4H8) is ∼20 times slower than in the NAr system. These results constitute the first experimentally documented examples of forming a metallacyclobutane ring from a metallacyclopentane ring (ring contraction) and establish how metathesis-active methylene and metallacyclobutane complexes can be formed and reformed in the presence of ethylene. They also raise the possibility that ambient light could play a role in some metathesis reactions that involve ethylene and tungsten-based imido alkylidene olefin metathesis catalysts, if not others.
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Affiliation(s)
- Maxime Boudjelel
- Department of Chemistry, University of California at Riverside, Riverside, California 92521, United States
| | - René Riedel
- Department of Chemistry, University of California at Riverside, Riverside, California 92521, United States
| | - Richard R Schrock
- Department of Chemistry, University of California at Riverside, Riverside, California 92521, United States
| | - Matthew P Conley
- Department of Chemistry, University of California at Riverside, Riverside, California 92521, United States
| | - Adam J Berges
- Department of Chemistry, University of California at Riverside, Riverside, California 92521, United States
| | - Veronica Carta
- Department of Chemistry, University of California at Riverside, Riverside, California 92521, United States
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Schmiester M, Maier R, Riedel R, Durek P, Frentsch M, Kolling S, Mashreghi MF, Jenq R, Zhang L, Peterson CB, Bullinger L, Chang HD, Na IK. Flow cytometry can reliably capture gut microbial composition in healthy adults as well as dysbiosis dynamics in patients with aggressive B-cell non-Hodgkin lymphoma. Gut Microbes 2022; 14:2081475. [PMID: 35634713 PMCID: PMC9154785 DOI: 10.1080/19490976.2022.2081475] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Modulation of commensal gut microbiota is increasingly recognized as a promising strategy to reduce mortality in patients with malignant diseases, but monitoring for dysbiosis is generally not routine clinical practice due to equipment, expertise and funding required for sequencing analysis. A low-threshold alternative is microbial diversity profiling by single-cell flow cytometry (FCM), which we compared to 16S rRNA sequencing in human fecal samples and employed to characterize longitudinal changes in the microbiome composition of patients with aggressive B-cell non-Hodgkin lymphoma undergoing chemoimmunotherapy. Diversity measures obtained from both methods were correlated and captured identical trends in microbial community structures, finding no difference in patients' pretreatment alpha or beta diversity compared to healthy controls and a significant and progressive loss of alpha diversity during chemoimmunotherapy. Our results highlight the potential of FCM-based microbiome profiling as a reliable and accessible diagnostic tool that can provide novel insights into cancer therapy-associated dysbiosis dynamics.
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Affiliation(s)
- Maren Schmiester
- Department of Hematology, Oncology and Tumor Immunology, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany,Berlin Institute of Health at Charité, Universitätsmedizin Berlin, Berlin, Germany,CONTACT Maren Schmiester Department of Hematology, Oncology and Tumor Immunology, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin', Berlin, Germany
| | - René Maier
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - René Riedel
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - Pawel Durek
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - Marco Frentsch
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - Stefan Kolling
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Berlin, Germany,Berlin School of Integrative Oncology, Berlin, Germany
| | - Mir-Farzin Mashreghi
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Berlin, Germany,(DRFZ), an Institute of the Leibniz AssociationTherapeutic Gene Regulation, Deutsches Rheuma-Forschungszentrum, Berlin, Germany
| | - Robert Jenq
- Department of Genomic Medicine, the University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Liangliang Zhang
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Christine B. Peterson
- Department of Biostatistics, the University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Lars Bullinger
- Department of Hematology, Oncology and Tumor Immunology, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany,German Cancer Research Center (DKFZ), Heidelberg, Germany,German Cancer Consortium (DKTK), Berlin, Germany
| | - Hyun-Dong Chang
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany,Institute of Biotechnology, Technische Universität Berlin, Germany
| | - Il-Kang Na
- Department of Hematology, Oncology and Tumor Immunology, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany,BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Berlin, Germany,German Cancer Consortium (DKTK), Berlin, Germany,ECRC Experimental and Clinical Research Center, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
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11
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Haftmann C, Zwicky P, Ingelfinger F, Mair F, Floess S, Riedel R, Durek P, Spalinger MR, Friebel E, Leung BP, Lutz M, Puertas N, Amorim A, Schärli S, Becher B, Kisielow J, Waisman A, Mashreghi MF, Huehn J, Becher B. Protection against autoimmunity is driven by thymic epithelial cell-mediated regulation of T reg development. Sci Immunol 2021; 6:eabf3111. [PMID: 34797691 DOI: 10.1126/sciimmunol.abf3111] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Medullary thymic epithelial cells (mTECs) are key antigen-presenting cells mediating T cell tolerance to prevent harmful autoimmunity. mTECs both negatively select self-reactive T cells and promote the development of thymic regulatory T cells (tTregs) that mediate peripheral tolerance. The relative importance of these two mechanisms of thymic education to prevent autoimmunity is unclear. We generated a mouse model to specifically target the development and function of mTECs by conditional ablation of the NF-κB–inducing kinase (NIK) in the TEC compartment. In contrast to germline-deficient NIK−/− mice, Foxn1CreNIKfl/fl mice rapidly developed fatal T cell–dependent multiorgan autoimmunity shortly after birth. Thymic transplantation and adoptive transfer experiments demonstrated that autoimmunity arises specifically from the emergence of dysfunctional tTregs. Thus, Treg function, rather than negative selection, enforces the protection of peripheral tissues from autoimmune attack.
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Affiliation(s)
- Claudia Haftmann
- Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Pascale Zwicky
- Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Florian Ingelfinger
- Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Florian Mair
- Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
- Division of Vaccine and Infectious Disease, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Stefan Floess
- Helmholtz Centre for Infection Research, Experimental Immunology, Braunschweig, Germany
| | - René Riedel
- Therapeutic Gene Regulation, Deutsches Rheuma-Forschungszentrum, Berlin, Germany
| | - Pawel Durek
- Therapeutic Gene Regulation, Deutsches Rheuma-Forschungszentrum, Berlin, Germany
| | - Marianne R Spalinger
- Universitätsspital, Klinik für Gastroenterologie und Hepatologie, Zürich, Switzerland
| | - Ekaterina Friebel
- Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Brian P Leung
- Department of Physiology and Biophysics, University of Southern California, Los Angeles, CA, USA
| | - Mirjam Lutz
- Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Nicole Puertas
- Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Ana Amorim
- Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Stefanie Schärli
- Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Benedict Becher
- Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Jan Kisielow
- Department of Biology, Institute of Molecular Health Sciences, Swiss Federal Institute of Technology (ETH) Zurich, Zürich, Switzerland
| | - Ari Waisman
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Mir-Farzin Mashreghi
- Therapeutic Gene Regulation, Deutsches Rheuma-Forschungszentrum, Berlin, Germany
- Berlin Institute of Health (BIH), Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Jochen Huehn
- Helmholtz Centre for Infection Research, Experimental Immunology, Braunschweig, Germany
- Hannover Medical School, Hannover, Germany
| | - Burkhard Becher
- Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
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12
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Riedel R, Seel AG, Malko D, Miller DP, Sperling BT, Choi H, Headen TF, Zurek E, Porch A, Kucernak A, Pyper NC, Edwards PP, Barrett AGM. Superalkali-Alkalide Interactions and Ion Pairing in Low-Polarity Solvents. J Am Chem Soc 2021; 143:3934-3943. [PMID: 33660507 PMCID: PMC8028040 DOI: 10.1021/jacs.1c00115] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Indexed: 11/30/2022]
Abstract
The nature of anionic alkali metals in solution is traditionally thought to be "gaslike" and unperturbed. In contrast to this noninteracting picture, we present experimental and computational data herein that support ion pairing in alkalide solutions. Concentration dependent ionic conductivity, dielectric spectroscopy, and neutron scattering results are consistent with the presence of superalkali-alkalide ion pairs in solution, whose stability and properties have been further investigated by DFT calculations. Our temperature dependent alkali metal NMR measurements reveal that the dynamics of the alkalide species is both reversible and thermally activated suggesting a complicated exchange process for the ion paired species. The results of this study go beyond a picture of alkalides being a "gaslike" anion in solution and highlight the significance of the interaction of the alkalide with its complex countercation (superalkali).
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Affiliation(s)
- René Riedel
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City Campus, Wood Lane, London W12
0BZ, U.K.
| | - Andrew G. Seel
- Department
of Physics and Astronomy, University College
London, Gower Street, London WC1E
6BT, U.K.
- Inorganic
Chemistry Laboratories, University of Oxford, Park Royal Road, Oxford OX1 3QR, U.K.
| | - Daniel Malko
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City Campus, Wood Lane, London W12
0BZ, U.K.
| | - Daniel P. Miller
- Department
of Chemistry, Hofstra University, 106 Berliner Hall, Hempstead, New York 11549, United States
| | - Brendan T. Sperling
- Department
of Chemistry, Hofstra University, 106 Berliner Hall, Hempstead, New York 11549, United States
| | - Heungjae Choi
- School
of Engineering, Cardiff University, Cardiff CF24 3AA, U.K.
| | - Thomas F. Headen
- ISIS Neutron
and Muon Source, Science and Technology
Facilities Council, Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, U.K.
| | - Eva Zurek
- Department
of Chemistry, State University of New York
at Buffalo, 777 Natural Sciences Complex, Buffalo, New York 14260-3000, United States
| | - Adrian Porch
- School
of Engineering, Cardiff University, Cardiff CF24 3AA, U.K.
| | - Anthony Kucernak
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City Campus, Wood Lane, London W12
0BZ, U.K.
| | - Nicholas C. Pyper
- University
Chemical Laboratory, Lensfield Road, Cambridge CB2 1EW, U.K.
| | - Peter P. Edwards
- Inorganic
Chemistry Laboratories, University of Oxford, Park Royal Road, Oxford OX1 3QR, U.K.
| | - Anthony G. M. Barrett
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City Campus, Wood Lane, London W12
0BZ, U.K.
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13
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Riedel R, Heydt C, Scheel A, Tumbrink H, Brägelmann J, Fassunke J, Nogova L, Michels S, Scheffler M, Fischer R, Koleczko S, Weber J, Westphal T, Abdulla D, Merkelbach-Bruse S, Sos M, Büttner R, Wolf J. FP14.04 Resistance to MET Inhibition in MET Driven NSCLC and Response after Switching from Type I to Type II MET Inhibitors. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Maschmeyer P, Heinz GA, Skopnik CM, Lutter L, Mazzoni A, Heinrich F, von Stuckrad SL, Wirth LE, Tran CL, Riedel R, Lehmann K, Sakwa I, Cimaz R, Giudici F, Mall MA, Enghard P, Vastert B, Chang HD, Durek P, Annunziato F, van Wijk F, Radbruch A, Kallinich T, Mashreghi MF. Antigen-driven PD-1 + TOX + BHLHE40 + and PD-1 + TOX + EOMES + T lymphocytes regulate juvenile idiopathic arthritis in situ. Eur J Immunol 2021; 51:915-929. [PMID: 33296081 DOI: 10.1002/eji.202048797] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 06/05/2020] [Revised: 09/27/2020] [Accepted: 12/03/2020] [Indexed: 12/11/2022]
Abstract
T lymphocytes accumulate in inflamed tissues of patients with chronic inflammatory diseases (CIDs) and express pro-inflammatory cytokines upon re-stimulation in vitro. Further, a significant genetic linkage to MHC genes suggests that T lymphocytes play an important role in the pathogenesis of CIDs including juvenile idiopathic arthritis (JIA). However, the functions of T lymphocytes in established disease remain elusive. Here we dissect the transcriptional and the clonal heterogeneity of synovial T lymphocytes in JIA patients by single-cell RNA sequencing combined with T cell receptor profiling on the same cells. We identify clonally expanded subpopulations of T lymphocytes expressing genes reflecting recent activation by antigen in situ. A PD-1+ TOX+ EOMES+ population of CD4+ T lymphocytes expressed immune regulatory genes and chemoattractant genes for myeloid cells. A PD-1+ TOX+ BHLHE40+ population of CD4+ , and a mirror population of CD8+ T lymphocytes expressed genes driving inflammation, and genes supporting B lymphocyte activation in situ. This analysis points out that multiple types of T lymphocytes have to be targeted for therapeutic regeneration of tolerance in arthritis.
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Affiliation(s)
- Patrick Maschmeyer
- Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany
| | - Gitta Anne Heinz
- Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany
| | - Christopher Mark Skopnik
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Nephrology and Intensive Care Medicine, Berlin, Germany
| | - Lisanne Lutter
- Center for Translational Immunology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Alessio Mazzoni
- Department of Experimental and Clinical Medicine and DENOTHE Center, University of Florence, Florence, Italy
| | - Frederik Heinrich
- Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany
| | - Sae Lim von Stuckrad
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Pediatric Pulmonology, Immunology and Critical Care Medicine, Berlin, Germany.,Charité - Universitätsmedizin Berlin, corporate member of Freie Universität, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin SPZ (Center for Chronically Sick Children), Berlin, Germany
| | - Lorenz Elias Wirth
- Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany
| | - Cam Loan Tran
- Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany
| | - René Riedel
- Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany
| | - Katrin Lehmann
- Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany
| | - Imme Sakwa
- Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany
| | - Rolando Cimaz
- Anna Meyer Children's Hospital and University of Florence, Florence, Italy.,Department of Clinical Sciences and Community Health, University of Milano, Milano, Italy
| | - Francesco Giudici
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Marcus Alexander Mall
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Pediatric Pulmonology, Immunology and Critical Care Medicine, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany
| | - Philipp Enghard
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Nephrology and Intensive Care Medicine, Berlin, Germany
| | - Bas Vastert
- Center for Translational Immunology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Hyun-Dong Chang
- Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany
| | - Pawel Durek
- Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany.,BCRT/DRFZ Single-Cell Laboratory for Advanced Cellular Therapies - Brandenburg Center for Regenerative Therapies (BCRT), Berlin, Germany
| | - Francesco Annunziato
- Department of Experimental and Clinical Medicine and DENOTHE Center, University of Florence, Florence, Italy
| | - Femke van Wijk
- Center for Translational Immunology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Andreas Radbruch
- Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany
| | - Tilmann Kallinich
- Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany.,Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Pediatric Pulmonology, Immunology and Critical Care Medicine, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany
| | - Mir-Farzin Mashreghi
- Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany.,BCRT/DRFZ Single-Cell Laboratory for Advanced Cellular Therapies - Brandenburg Center for Regenerative Therapies (BCRT), Berlin, Germany
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15
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Riedel R, Frese N, Yang F, Wortmann M, Dalpke R, Rhinow D, Hampp N, Gölzhäuser A. Fusion of purple membranes triggered by immobilization on carbon nanomembranes. Beilstein J Nanotechnol 2021; 12:93-101. [PMID: 33564606 PMCID: PMC7849249 DOI: 10.3762/bjnano.12.8] [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] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 12/29/2020] [Indexed: 06/12/2023]
Abstract
A freestanding ultrathin hybrid membrane was synthesized comprising two functional layers, that is, first, a carbon nanomembrane (CNM) produced by electron irradiation-induced cross-linking of a self-assembled monolayer (SAM) of 4'-nitro-1,1'-biphenyl-4-thiol (NBPT) and second, purple membrane (PM) containing genetically modified bacteriorhodopsin (BR) carrying a C-terminal His-tag. The NBPT-CNM was further modified to carry nitrilotriacetic acid (NTA) terminal groups for the interaction with the His-tagged PMs forming a quasi-monolayer of His-tagged PM on top of the CNM-NTA. The formation of the Ni-NTA/His-tag complex leads to the unidirectional orientation of PM on the CNM substrate. Electrophoretic sedimentation was employed to optimize the surface coverage and to close gaps between the PM patches. This procedure for the immobilization of oriented dense PM facilitates the spontaneous fusion of individual PM patches, forming larger membrane areas. This is, to our knowledge, the very first procedure described to induce the oriented fusion of PM on a solid support. The resulting hybrid membrane has a potential application as a light-driven two-dimensional proton-pumping membrane, for instance, for light-driven seawater desalination as envisioned soon after the discovery of PM.
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Affiliation(s)
- René Riedel
- Faculty of Chemistry and Materials Sciences Center, University of Marburg, Hans-Meerwein-Strasse, D-35032 Marburg, Germany
| | - Natalie Frese
- Physics of Supramolecular Systems and Surfaces, Faculty of Physics, Bielefeld University, Universitätsstraße 25, D-33615 Bielefeld, Germany
| | - Fang Yang
- Nano Biomaterials Group, Ningbo Institute of Industrial Technology, Chinese Academy of Science, China
| | - Martin Wortmann
- Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences, Interaktion 1, D-33619 Bielefeld, Germany
| | - Raphael Dalpke
- Physics of Supramolecular Systems and Surfaces, Faculty of Physics, Bielefeld University, Universitätsstraße 25, D-33615 Bielefeld, Germany
| | - Daniel Rhinow
- Faculty of Chemistry and Materials Sciences Center, University of Marburg, Hans-Meerwein-Strasse, D-35032 Marburg, Germany
- Max Planck Institute of Biophysics, Department of Structural Biology, Max-von-Laue-Str. 3, D-60438 Frankfurt, Germany
| | - Norbert Hampp
- Faculty of Chemistry and Materials Sciences Center, University of Marburg, Hans-Meerwein-Strasse, D-35032 Marburg, Germany
| | - Armin Gölzhäuser
- Physics of Supramolecular Systems and Surfaces, Faculty of Physics, Bielefeld University, Universitätsstraße 25, D-33615 Bielefeld, Germany
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16
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Frost N, Christopoulos P, Kauffmann-Guerrero D, Stratmann J, Riedel R, Schäfer M, Alt J, Guetz S, Brinkmann J, Griesinger F. 1368P Lorlatinib in pretreated ALK/ROS1-positive non-small cell lung cancer (NSCLC): Results from the German early access program. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1682] [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] Open
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17
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Riedel R, Addo R, Ferreira-Gomes M, Heinz GA, Heinrich F, Kummer J, Greiff V, Schulz D, Klaeden C, Cornelis R, Menzel U, Kröger S, Stervbo U, Köhler R, Haftmann C, Kühnel S, Lehmann K, Maschmeyer P, McGrath M, Naundorf S, Hahne S, Sercan-Alp Ö, Siracusa F, Stefanowski J, Weber M, Westendorf K, Zimmermann J, Hauser AE, Reddy ST, Durek P, Chang HD, Mashreghi MF, Radbruch A. Discrete populations of isotype-switched memory B lymphocytes are maintained in murine spleen and bone marrow. Nat Commun 2020; 11:2570. [PMID: 32444631 PMCID: PMC7244721 DOI: 10.1038/s41467-020-16464-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 05/03/2020] [Indexed: 12/15/2022] Open
Abstract
At present, it is not clear how memory B lymphocytes are maintained over time, and whether only as circulating cells or also residing in particular tissues. Here we describe distinct populations of isotype-switched memory B lymphocytes (Bsm) of murine spleen and bone marrow, identified according to individual transcriptional signature and B cell receptor repertoire. A population of marginal zone-like cells is located exclusively in the spleen, while a population of quiescent Bsm is found only in the bone marrow. Three further resident populations, present in spleen and bone marrow, represent transitional and follicular B cells and B1 cells, respectively. A population representing 10-20% of spleen and bone marrow memory B cells is the only one qualifying as circulating. In the bone marrow, all cells individually dock onto VCAM1+ stromal cells and, reminiscent of resident memory T and plasma cells, are void of activation, proliferation and mobility.
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Affiliation(s)
- René Riedel
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
- Evolutionary Genomics Group, Max Planck Institute for Evolutionary Biology, 24306, Plön, Germany
| | - Richard Addo
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Marta Ferreira-Gomes
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Gitta Anne Heinz
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Frederik Heinrich
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Jannis Kummer
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Victor Greiff
- Department of Biosystems Science and Engineering, Eidgenössische Technische Hochschule (ETH Zürich), CH-4058, Basel, Switzerland
- Department of Immunology, Institute of Clinical Medicine, University of Oslo, 0424, Oslo, Norway
| | - Daniel Schulz
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Cora Klaeden
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Rebecca Cornelis
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Ulrike Menzel
- Department of Biosystems Science and Engineering, Eidgenössische Technische Hochschule (ETH Zürich), CH-4058, Basel, Switzerland
| | - Stefan Kröger
- Knowledge Management in Bioinformatics, Humboldt-Universität zu Berlin, 12489, Berlin, Germany
- Department of Infectious Disease Epidemiology, Robert Koch Institute, 13353, Berlin, Germany
| | - Ulrik Stervbo
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
- Charité-Universitätsmedizin Berlin, 10117, Berlin, Germany
| | - Ralf Köhler
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Claudia Haftmann
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
- Institute of Experimental Immunology, Universitätsspital Zürich, 8057, Zürich, Switzerland
| | - Silvia Kühnel
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Katrin Lehmann
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Patrick Maschmeyer
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Mairi McGrath
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Sandra Naundorf
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Stefanie Hahne
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Özen Sercan-Alp
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
- R&D, TA Immunology & Inflammation Research, Sanofi-Aventis Deutschland GmbH, Industriepark Hoechst, 65926, Frankfurt am Main, Germany
| | - Francesco Siracusa
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Jonathan Stefanowski
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
- Charité-Universitätsmedizin Berlin, 10117, Berlin, Germany
| | - Melanie Weber
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Kerstin Westendorf
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Jakob Zimmermann
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
- Department for BioMedical Research (DBMR), University of Bern, 3008, Bern, Switzerland
| | - Anja E Hauser
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
- Charité-Universitätsmedizin Berlin, 10117, Berlin, Germany
| | - Sai T Reddy
- Department of Biosystems Science and Engineering, Eidgenössische Technische Hochschule (ETH Zürich), CH-4058, Basel, Switzerland
| | - Pawel Durek
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Hyun-Dong Chang
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany
| | - Mir-Farzin Mashreghi
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany.
- BCRT/DRFZ Single-Cell Laboratory for Advanced Cellular Therapies - Brandenburg Center for Regenerative Therapies (BCRT), 13353, Berlin, Germany.
| | - Andreas Radbruch
- Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, 10117, Berlin, Germany.
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18
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Beller A, Kruglov A, Durek P, von Goetze V, Werner K, Heinz GA, Ninnemann J, Lehmann K, Maier R, Hoffmann U, Riedel R, Heiking K, Zimmermann J, Siegmund B, Mashreghi MF, Radbruch A, Chang HD. Specific microbiota enhances intestinal IgA levels by inducing TGF-β in T follicular helper cells of Peyer's patches in mice. Eur J Immunol 2020; 50:783-794. [PMID: 32065660 DOI: 10.1002/eji.201948474] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 11/15/2019] [Accepted: 02/14/2020] [Indexed: 12/31/2022]
Abstract
In humans and mice, mucosal immune responses are dominated by IgA antibodies and the cytokine TGF-β, suppressing unwanted immune reactions but also targeting Ig class switching to IgA. It had been suggested that eosinophils promote the generation and maintenance of mucosal IgA-expressing plasma cells. Here, we demonstrate that not eosinophils, but specific bacteria determine mucosal IgA production. Co-housing of eosinophil-deficient mice with mice having high intestinal IgA levels, as well as the intentional microbiota transfer induces TGF-β expression in intestinal T follicular helper cells, thereby promoting IgA class switching in Peyer's patches, enhancing IgA+ plasma cell numbers in the small intestinal lamina propria and levels of mucosal IgA. We show that bacteria highly enriched for the genus Anaeroplasma are sufficient to induce these changes and enhance IgA levels when adoptively transferred. Thus, specific members of the intestinal microbiota and not the microbiota as such regulate gut homeostasis, by promoting the expression of immune-regulatory TGF-β and of mucosal IgA.
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Affiliation(s)
- Alexander Beller
- Deutsches Rheuma-Forschungszentrum Berlin, a Leibniz Institute (DRFZ), Berlin, Germany
| | - Andrey Kruglov
- Deutsches Rheuma-Forschungszentrum Berlin, a Leibniz Institute (DRFZ), Berlin, Germany.,Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia.,Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Pawel Durek
- Deutsches Rheuma-Forschungszentrum Berlin, a Leibniz Institute (DRFZ), Berlin, Germany
| | - Victoria von Goetze
- Deutsches Rheuma-Forschungszentrum Berlin, a Leibniz Institute (DRFZ), Berlin, Germany
| | - Katharina Werner
- Deutsches Rheuma-Forschungszentrum Berlin, a Leibniz Institute (DRFZ), Berlin, Germany
| | - Gitta Anne Heinz
- Deutsches Rheuma-Forschungszentrum Berlin, a Leibniz Institute (DRFZ), Berlin, Germany
| | - Justus Ninnemann
- Deutsches Rheuma-Forschungszentrum Berlin, a Leibniz Institute (DRFZ), Berlin, Germany
| | - Katrin Lehmann
- Deutsches Rheuma-Forschungszentrum Berlin, a Leibniz Institute (DRFZ), Berlin, Germany
| | - René Maier
- Deutsches Rheuma-Forschungszentrum Berlin, a Leibniz Institute (DRFZ), Berlin, Germany
| | - Ute Hoffmann
- Deutsches Rheuma-Forschungszentrum Berlin, a Leibniz Institute (DRFZ), Berlin, Germany
| | - René Riedel
- Deutsches Rheuma-Forschungszentrum Berlin, a Leibniz Institute (DRFZ), Berlin, Germany.,Max Planck Institute for Evolutionary Biology, Plön, Germany
| | - Kevin Heiking
- Deutsches Rheuma-Forschungszentrum Berlin, a Leibniz Institute (DRFZ), Berlin, Germany
| | - Jakob Zimmermann
- Maurice Müller Laboratories, Department of Biomedical Research, University of Bern, Bern, Switzerland
| | - Britta Siegmund
- Medical Department I (Gastroenterology, Infectiology, and Rheumatology), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Mir-Farzin Mashreghi
- Deutsches Rheuma-Forschungszentrum Berlin, a Leibniz Institute (DRFZ), Berlin, Germany
| | - Andreas Radbruch
- Deutsches Rheuma-Forschungszentrum Berlin, a Leibniz Institute (DRFZ), Berlin, Germany
| | - Hyun-Dong Chang
- Deutsches Rheuma-Forschungszentrum Berlin, a Leibniz Institute (DRFZ), Berlin, Germany
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19
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Riedel R, Mahr N, Yao C, Wu A, Yang F, Hampp N. Synthesis of gold-silica core-shell nanoparticles by pulsed laser ablation in liquid and their physico-chemical properties towards photothermal cancer therapy. Nanoscale 2020; 12:3007-3018. [PMID: 31915777 DOI: 10.1039/c9nr07129f] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Due to the increasing scientific and biomedical interest in various nanoparticles (NPs) with excellent properties and the onset of their commercial use, a convenient and adjustable physical method for improved efficiency needs to be used for enabling their tech-scale production. Recently, great progress has been made in the large-scale production of NPs with a simple structure by pulsed laser ablation in liquid (PLAL). In this work, we synthesized gold-silica core-shell NPs by improved PLAL and provided a guide on how to investigate their physico-chemical properties and association with biological effects towards cancer photothermal therapy (PTT). By means of this method, reproducible and scalable liquid phase NPs with less toxicity and good stability can be realized for tech-scale production based on its further adjustment and modification. Moreover, a more complete investigation of the associations between the physico-chemical properties of functional NPs with complex structure and their biological effects may enable more targeted NPs towards specific requirements of biomedical applications.
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Affiliation(s)
- René Riedel
- Physical Chemistry Department of University of Marburg, Marburg, Germany.
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20
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Münkler P, Gunawardene MA, Jungen C, Klatt N, Schwarzl JM, Akbulak RÖ, Dinshaw L, Hartmann J, Jularic M, Kahle AK, Riedel R, Merbold L, Eickholt C, Willems S, Meyer C. Local impedance guides catheter ablation in patients with ventricular tachycardia. J Cardiovasc Electrophysiol 2019; 31:61-69. [PMID: 31701589 DOI: 10.1111/jce.14269] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 10/16/2019] [Accepted: 11/04/2019] [Indexed: 12/27/2022]
Abstract
AIMS Catheter contact and local tissue characteristics are relevant information for successful radiofrequency current (RFC)-ablation. Local impedance (LI) has been shown to reflect tissue characteristics and lesion formation during RFC-ablation. Using a novel ablation catheter incorporating three mini-electrodes, we investigated LI in relation to generator impedance (GI) in patients with ventricular tachycardia (VT) and its applicability as an indicator of effective RFC-ablation. METHODS AND RESULTS Baseline impedance, Δimpedance during ablation and drop rate (Δimpedance/time) were analyzed for 625 RFC-applications in 28 patients with recurrent VT undergoing RFC-ablation. LI was lower in scarred (87.0 Ω [79.0-95.0]) compared to healthy myocardium (97.5 Ω ([82.75-111.50]; P = .03) while GI did not differ between scarred and healthy myocardium. ΔLI was higher (18 Ω [9.4-26.0]) for VT-terminating as compared to non-terminating RFC-ablation (ΔLI 13 Ω [8.85-18.0]; P = .03), but did not differ for ΔGI between terminating vs nonterminating RFC-ablation. Correspondingly, LI drop rate was higher for RFC-ablation terminating the VT compared with RFC-ablation not terminating the VT (0.63 Ω/s [0.52-0.76] vs 0.32 Ω [0.20-0.58]; P = .008) while there was no difference for GI drop rate. ΔLI was higher in patients with nonischemic cardiomyopathy vs patients with ischemic cardiomyopathy (16 Ω [11.0-20.0] vs 11.0 Ω [7.85-17.00]; P = .003). CONCLUSION Our findings suggest that LI is a sensitive parameter to guide RFC-ablation in patients with VT. LI indicates differences in tissue characteristics and generally is higher in patients with nonischemic cardiomyopathy. Hence, the etiology of the underlying cardiomyopathy needs to be considered when adopting LI for monitoring catheter ablation of VT.
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Affiliation(s)
- Paula Münkler
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Berlin, Germany
| | - Melanie A Gunawardene
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany.,Department of Cardiology, Asklepios Hospital St. Georg, Hamburg, Germany
| | - Christiane Jungen
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Berlin, Germany
| | - Niklas Klatt
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Berlin, Germany
| | - Jana M Schwarzl
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany
| | - Ruken Ö Akbulak
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany
| | - Leon Dinshaw
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany
| | - Jens Hartmann
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany.,Department of Cardiology, Asklepios Hospital St. Georg, Hamburg, Germany
| | - Mario Jularic
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany.,Department of Cardiology, Asklepios Hospital St. Georg, Hamburg, Germany
| | - Ann-Kathrin Kahle
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany
| | - René Riedel
- Max Planck Institute for Evolutionary Biology, Plön, Germany
| | | | - Christian Eickholt
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany.,Department of Cardiology, Asklepios Hospital St. Georg, Hamburg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Berlin, Germany
| | - Stephan Willems
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany.,Department of Cardiology, Asklepios Hospital St. Georg, Hamburg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Berlin, Germany
| | - Christian Meyer
- Department of Cardiology, University Heart and Vascular Center, Hamburg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Berlin, Germany
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21
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Kron A, Alidousty C, Scheffler M, Merkelbach-Bruse S, Seidel D, Riedel R, Ihle MA, Michels S, Nogova L, Fassunke J, Heydt C, Kron F, Ueckeroth F, Serke M, Krüger S, Grohe C, Koschel D, Benedikter J, Kaminsky B, Schaaf B, Braess J, Sebastian M, Kambartel KO, Thomas R, Zander T, Schultheis AM, Büttner R, Wolf J. Impact of TP53 mutation status on systemic treatment outcome in ALK-rearranged non-small-cell lung cancer. Ann Oncol 2019; 29:2068-2075. [PMID: 30165392 PMCID: PMC6225899 DOI: 10.1093/annonc/mdy333] [Citation(s) in RCA: 116] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background We analyzed whether co-occurring mutations influence the outcome of systemic therapy in ALK-rearranged non-small-cell lung cancer (NSCLC). Patients and methods ALK-rearranged stage IIIB/IV NSCLC patients were analyzed with next-generation sequencing and fluorescence in situ hybridization analyses on a centralized diagnostic platform. Median progression-free survival (PFS) and overall survival (OS) were determined in the total cohort and in treatment-related sub-cohorts. Cox regression analyses were carried out to exclude confounders. Results Among 216 patients with ALK-rearranged NSCLC, the frequency of pathogenic TP53 mutations was 23.8%, while other co-occurring mutations were rare events. In ALK/TP53 co-mutated patients, median PFS and OS were significantly lower compared with TP53 wildtype patients [PFS 3.9 months (95% CI: 2.4–5.6) versus 10.3 months (95% CI: 8.6–12.0), P < 0.001; OS 15.0 months (95% CI: 5.0–24.9) versus 50.0 months (95% CI: 22.9–77.1), P = 0.002]. This difference was confirmed in all treatment-related subgroups including chemotherapy only [PFS first-line chemotherapy 2.6 months (95% CI: 1.3–4.1) versus 6.2 months (95% CI: 1.8–10.5), P = 0.021; OS 2.0 months (95% CI: 0.0–4.6) versus 9.0 months (95% CI: 6.1–11.9), P = 0.035], crizotinib plus chemotherapy [PFS crizotinib 5.0 months (95% CI: 2.9–7.2) versus 14.0 months (95% CI: 8.0–20.1), P < 0.001; OS 17.0 months (95% CI: 6.7–27.3) versus not reached, P = 0.049] and crizotinib followed by next-generation ALK-inhibitor [PFS next-generation inhibitor 5.4 months (95% CI: 0.1–10.7) versus 9.9 months (95% CI: 6.4–13.5), P = 0.039; OS 7.0 months versus 50.0 months (95% CI: not reached), P = 0.001). Conclusions In ALK-rearranged NSCLC co-occurring TP53 mutations predict an unfavorable outcome of systemic therapy. Our observations encourage future research to understand the underlying molecular mechanisms and to improve treatment outcome of the ALK/TP53 co-mutated subgroup.
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Affiliation(s)
- A Kron
- Network Genomic Medicine, Cologne, Germany; Lung Cancer Group Cologne, Department I of Internal Medicine, University Hospital of Cologne, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany
| | - C Alidousty
- Network Genomic Medicine, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany; Institute of Pathology, University Hospital of Cologne, Cologne, Germany
| | - M Scheffler
- Network Genomic Medicine, Cologne, Germany; Lung Cancer Group Cologne, Department I of Internal Medicine, University Hospital of Cologne, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany
| | - S Merkelbach-Bruse
- Network Genomic Medicine, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany; Institute of Pathology, University Hospital of Cologne, Cologne, Germany
| | - D Seidel
- Center for Integrated Oncology Köln Bonn, Cologne, Germany; CECAD Cluster of Excellence, University of Cologne, Cologne, Germany
| | - R Riedel
- Network Genomic Medicine, Cologne, Germany; Lung Cancer Group Cologne, Department I of Internal Medicine, University Hospital of Cologne, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany
| | - M A Ihle
- Network Genomic Medicine, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany; Institute of Pathology, University Hospital of Cologne, Cologne, Germany
| | - S Michels
- Network Genomic Medicine, Cologne, Germany; Lung Cancer Group Cologne, Department I of Internal Medicine, University Hospital of Cologne, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany
| | - L Nogova
- Network Genomic Medicine, Cologne, Germany; Lung Cancer Group Cologne, Department I of Internal Medicine, University Hospital of Cologne, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany
| | - J Fassunke
- Network Genomic Medicine, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany; Institute of Pathology, University Hospital of Cologne, Cologne, Germany
| | - C Heydt
- Network Genomic Medicine, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany; Institute of Pathology, University Hospital of Cologne, Cologne, Germany
| | - F Kron
- Network Genomic Medicine, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany
| | - F Ueckeroth
- Network Genomic Medicine, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany; Institute of Pathology, University Hospital of Cologne, Cologne, Germany
| | - M Serke
- Network Genomic Medicine, Cologne, Germany; Department of Pneumology, Lungenklinik Hemer des Deutschen Gemeinschafts-Diakonieverbandes GmbH, Hemer, Germany
| | - S Krüger
- Network Genomic Medicine, Cologne, Germany; Department of Pneumology, Florence Nightingale Hospital, Düsseldorf, Germany
| | - C Grohe
- Network Genomic Medicine, Cologne, Germany; Department of Pneumology, Evangelische Lungenklinik Berlin (Paul Gerhardt Diakonie), Berlin, Germany
| | - D Koschel
- Network Genomic Medicine, Cologne, Germany; Department of Pneumology, Fachkrankenhaus Coswig, Coswig, Germany
| | - J Benedikter
- Network Genomic Medicine, Cologne, Germany; Department of Pneumology, Klinikum Bogenhausen, Munich, Germany
| | - B Kaminsky
- Network Genomic Medicine, Cologne, Germany; Department of Pneumology, Krankenhaus Bethanien, Solingen, Germany
| | - B Schaaf
- Network Genomic Medicine, Cologne, Germany; Lung Cancer Center, Klinikum Dortmund GmbH, Dortmund, Germany
| | - J Braess
- Network Genomic Medicine, Cologne, Germany; Department of Oncology and Hematology, Krankenhaus Barmherzige Brueder, Regensburg, Germany
| | - M Sebastian
- Network Genomic Medicine, Cologne, Germany; Department of Oncology and Hematology, University Hospital Frankfurt (Johannes-Wolfgang Goethe Institute), Frankfurt am Main, Germany
| | - K-O Kambartel
- Network Genomic Medicine, Cologne, Germany; Department of Pneumology, Bethanien Hospital Moers-Lungenzentrum, Moers, Germany
| | - R Thomas
- Network Genomic Medicine, Cologne, Germany; Cologne Center for Genomics, University Hospital of Cologne, Cologne, Germany
| | - T Zander
- Network Genomic Medicine, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany
| | - A M Schultheis
- Network Genomic Medicine, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany; Institute of Pathology, University Hospital of Cologne, Cologne, Germany
| | - R Büttner
- Network Genomic Medicine, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany; Institute of Pathology, University Hospital of Cologne, Cologne, Germany
| | - J Wolf
- Network Genomic Medicine, Cologne, Germany; Lung Cancer Group Cologne, Department I of Internal Medicine, University Hospital of Cologne, Cologne, Germany; Center for Integrated Oncology Köln Bonn, Cologne, Germany.
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22
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Scheffler M, Chanra T, Kron A, Koleczko S, Abdulla D, Ihle M, Holzem A, Riedel R, Michels S, Fischer R, Merkelbach-Bruse S, Büttner R, Nogova L, Wolf J. Genomic and clinical characterization of non-small cell lung cancer (NSCLC) patients harboring mutations in FGFR2 and FGFR3. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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23
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Fischer R, George J, Scheel A, Schlösser H, Vehreschild M, Abdulla D, Koleczko S, Michels S, Nogova L, Riedel R, Scheffler M, Maas L, Brossart P, Engel-Riedel W, Griesinger F, Grohé C, Kern J, Hermes B, Nachtkamp K, Panse J, Sebastian M, Lehmann M, Wiewrodt R, Buettner R, Thomas R, Wolf J. OA15.05 BIOLUMA: A Phase II Trial of Nivolumab and Ipilimumab in Lung Cancer – Prospective Evaluation of TMB in SCLC Patients. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.492] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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Müller K, Schmidt N, Link S, Riedel R, Bock J, Malone W, Lasri K, Kara A, Starke U, Kivala M, Stöhr M. Triphenylene-Derived Electron Acceptors and Donors on Ag(111): Formation of Intermolecular Charge-Transfer Complexes with Common Unoccupied Molecular States. Small 2019; 15:e1901741. [PMID: 31264784 DOI: 10.1002/smll.201901741] [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] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 06/14/2019] [Indexed: 06/09/2023]
Abstract
Over the past years, ultrathin films consisting of electron donating and accepting molecules have attracted increasing attention due to their potential usage in optoelectronic devices. Key parameters for understanding and tuning their performance are intermolecular and molecule-substrate interactions. Here, the formation of a monolayer thick blend of triphenylene-based organic donor and acceptor molecules from 2,3,6,7,10,11-hexamethoxytriphenylene (HAT) and 1,4,5,8,9,12-hexaazatriphenylenehexacarbonitrile (HATCN), respectively, on a silver (111) surface is reported. Scanning tunneling microscopy and spectroscopy, valence and core level photoelectron spectroscopy, as well as low-energy electron diffraction measurements are used, complemented by density functional theory calculations, to investigate both the electronic and structural properties of the homomolecular as well as the intermixed layers. The donor molecules are weakly interacting with the Ag(111) surface, while the acceptor molecules show a strong interaction with the substrate leading to charge transfer and substantial buckling of the top silver layer and of the adsorbates. Upon mixing acceptor and donor molecules, strong hybridization occurs between the two different molecules leading to the emergence of a common unoccupied molecular orbital located at both the donor and acceptor molecules. The donor acceptor blend studied here is, therefore, a compelling candidate for organic electronics based on self-assembled charge-transfer complexes.
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Affiliation(s)
- Kathrin Müller
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, Netherlands
- Max Planck Institute for Solid State Research, Heisenbergstrasse 1, D-70569, Stuttgart, Germany
| | - Nico Schmidt
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, Netherlands
| | - Stefan Link
- Max Planck Institute for Solid State Research, Heisenbergstrasse 1, D-70569, Stuttgart, Germany
| | - René Riedel
- Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Nikolaus-Fiebiger-Strasse 10, D-91058, Erlangen, Germany
| | - Julian Bock
- Organisch-Chemisches Institut & Centre for Advanced Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270 & 225, 69120, Heidelberg, Germany
| | - Walter Malone
- Department of Physics, University of Central Florida, Orlando, FL 32816, USA
| | - Karima Lasri
- Department of Physics, University of Central Florida, Orlando, FL 32816, USA
| | - Abdelkader Kara
- Department of Physics, University of Central Florida, Orlando, FL 32816, USA
| | - Ulrich Starke
- Max Planck Institute for Solid State Research, Heisenbergstrasse 1, D-70569, Stuttgart, Germany
| | - Milan Kivala
- Organisch-Chemisches Institut & Centre for Advanced Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270 & 225, 69120, Heidelberg, Germany
| | - Meike Stöhr
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, Netherlands
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25
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Suwandi A, Galeev A, Riedel R, Sharma S, Seeger K, Sterzenbach T, García Pastor L, Boyle EC, Gal-Mor O, Hensel M, Casadesús J, Baines JF, Grassl GA. Std fimbriae-fucose interaction increases Salmonella-induced intestinal inflammation and prolongs colonization. PLoS Pathog 2019; 15:e1007915. [PMID: 31329635 PMCID: PMC6675130 DOI: 10.1371/journal.ppat.1007915] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 08/01/2019] [Accepted: 06/13/2019] [Indexed: 12/14/2022] Open
Abstract
Expression of ABO and Lewis histo-blood group antigens by the gastrointestinal epithelium is governed by an α-1,2-fucosyltransferase enzyme encoded by the Fut2 gene. Alterations in mucin glycosylation have been associated with susceptibility to various bacterial and viral infections. Salmonella enterica serovar Typhimurium is a food-borne pathogen and a major cause of gastroenteritis. In order to determine the role of Fut2-dependent glycans in Salmonella-triggered intestinal inflammation, Fut2+/+ and Fut2-/- mice were orally infected with S. Typhimurium and bacterial colonization and intestinal inflammation were analyzed. Bacterial load in the intestine of Fut2-/- mice was significantly lower compared to Fut2+/+ mice. Analysis of histopathological changes revealed significantly lower levels of intestinal inflammation in Fut2-/- mice compared to Fut2+/+ mice and measurement of lipocalin-2 level in feces corroborated histopathological findings. Salmonella express fimbriae that assist in adherence of bacteria to host cells thereby facilitating their invasion. The std fimbrial operon of S. Typhimurium encodes the π-class Std fimbriae which bind terminal α(1,2)-fucose residues. An isogenic mutant of S. Typhimurium lacking Std fimbriae colonized Fut2+/+ and Fut2-/- mice to similar levels and resulted in similar intestinal inflammation. In vitro adhesion assays revealed that bacteria possessing Std fimbriae adhered significantly more to fucosylated cell lines or primary epithelial cells in comparison to cells lacking α(1,2)-fucose. Overall, these results indicate that Salmonella-triggered intestinal inflammation and colonization are dependent on Std-fucose interaction.
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Affiliation(s)
- Abdulhadi Suwandi
- Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School and German Center for Infection Research (DZIF), Hannover, Germany
| | - Alibek Galeev
- Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School and German Center for Infection Research (DZIF), Hannover, Germany
| | - René Riedel
- Max Planck Institute for Evolutionary Biology, Evolutionary Genomics, Plön, Germany and Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Samriti Sharma
- Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School and German Center for Infection Research (DZIF), Hannover, Germany
| | - Katrin Seeger
- Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School and German Center for Infection Research (DZIF), Hannover, Germany
| | - Torsten Sterzenbach
- Division of Microbiology and CellNanOs–Center for Cellular Nanoanalytics, University of Osnabrück, Osnabrück, Germany
| | - Lucía García Pastor
- Departamento de Genética, Facultad de Biología, Universidad de Sevilla, Sevilla, Spain
| | - Erin C. Boyle
- Institute for Laboratory Animal Science, Hannover Medical School, Hannover, Germany
- Department of Cardiothoracic, Transplantation, and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Ohad Gal-Mor
- The Infectious Diseases Research Laboratory, Sheba Medical Center, Tel-Hashomer, Israel
- Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Michael Hensel
- Division of Microbiology and CellNanOs–Center for Cellular Nanoanalytics, University of Osnabrück, Osnabrück, Germany
| | - Josep Casadesús
- Departamento de Genética, Facultad de Biología, Universidad de Sevilla, Sevilla, Spain
| | - John F. Baines
- Max Planck Institute for Evolutionary Biology, Evolutionary Genomics, Plön, Germany and Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Guntram A. Grassl
- Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School and German Center for Infection Research (DZIF), Hannover, Germany
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26
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Nogova L, Malchers F, Hillmer A, Merkelbach-Bruse S, Pinto A, Woempner C, Riedel R, Scheffler M, Michels S, De Porre P, Santiago-Walker A, Fischer R, Abdulla D, Thomas R, Buettner R, Wolf J. FIND: A phase II study to evaluate the efficacy of erdafitinib in FGFR-altered squamous NSCLC. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz063.082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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27
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Scheffler M, Frank R, Ihle M, Abdulla D, Koleczko S, Nogova L, Holzem A, Chanra T, Riedel R, Michels S, Fischer R, Kron A, Merkelbach-Bruse S, Buettner R, Wolf J. Impact on KRAS-subtypes and TP53 mutations on the prognostic value of KRAS/KEAP1 comutations in non-small cell lung cancer (NSCLC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz063.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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28
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Schmid M, Kachel SR, Klein BP, Bock N, Müller P, Riedel R, Hampp N, Gottfried JM. Reactive metal-organic interfaces studied with hard x-ray photoelectron spectroscopy: controlled formation of metalloporphyrin interphase layers during metal vapor deposition onto porphyrin films. J Phys Condens Matter 2019; 31:094002. [PMID: 30572324 DOI: 10.1088/1361-648x/aafa2b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Interfaces between organic semiconductors and metallic layers are ubiquitous in organic (opto-) electronic devices and can significantly influence their functionality. Here, we studied in situ prepared metal-organic interfaces, which were obtained by vapor deposition of metals (Co, Fe) onto organic semiconductor films (2H-tetraphenylporphyrin), with hard x-ray photoelectron spectroscopy. In these systems, the interphase zones, which are formed by diffusion and reaction of the metal in the organic material, can be clearly distinguished spectroscopically from the unreacted organic bulk, since they comprise the corresponding metalloporphyrins, CoTPP and FeTPP. In order to gain control over the thickness of the interphase layers, we varied process parameters such as sample temperature and metal-atom flux during interface preparation. We found that the temperature of the organic film during metal deposition was the only parameter that significantly influenced the formation of the interphase layers: their thicknesses were typically ~0.5 nm for deposition at 90 K, compared to ~1 nm at 300 K, irrespective of metal atom flux and chemical nature of the metal atom (Fe versus Co). Notably, these values are significantly smaller than the thicknesses of other metal/organics interphase regions reported in the literature.
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Reinhardt H, Peschke P, Riedel R, Hampp N. Mechanically metastable structures generated by single pulse laser-induced periodic surface structures (LIPSS) in the photoresist SU8. Nanotechnology 2018; 29:305303. [PMID: 29742067 DOI: 10.1088/1361-6528/aac378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Laser-induced periodic surface structures (LIPSS) with a periodicity of 351 nm are generated in the negative photoresist SU8 by single nanosecond laser pulse impact. Friction scans indicate the periodic pattern to comprise alternating regions of crosslinked and non-crosslinked SU8. Intriguingly, even minor mechanical stimuli in the order of nanonewtons cause the unfolding or rather the deletion of the characteristic periodic pattern similarly to the release of a pre-loaded spring. This feature combined with high resilience to heat and photon irradiation makes SU8-LIPSS attractive for applications such as mechanical stress monitors, self-destructing memory and passive micro actuators.
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Affiliation(s)
- Hendrik Reinhardt
- Department of Chemistry, Philipps-University of Marburg, D-35032 Marburg, Germany
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Kamrani S, Penther D, Ghasemi A, Riedel R, Fleck C. Microstructural characterization of Mg-SiC nanocomposite synthesized by high energy ball milling. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.04.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sun L, Riedel R, Stanciu SG, Yang F, Hampp N, Xu L, Wu A. Investigations on the elasticity of functional gold nanoparticles using single-molecule force spectroscopy. J Mater Chem B 2018; 6:2960-2971. [DOI: 10.1039/c7tb03309e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In this focused review we turn our attention towards several approaches for detecting the elasticity of NPs, systematically summarizing the divergent elasticity values of distinct gold nanoparticles (AuNPs) with different surfaces.
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Affiliation(s)
- Li Sun
- College of Science
- Nanjing Forestry University
- Nanjing
- P. R. China
- CAS Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province & Division of Functional Materials and Nanodevices
| | - René Riedel
- Fachbereich Chemie
- Philipps Universität Marburg
- Marburg
- Germany
| | - Stefan G. Stanciu
- Center for Microscopy-Microanalysis and Information Processing
- University Politehnica of Bucharest
- Bucharest
- Romania
| | - Fang Yang
- CAS Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province & Division of Functional Materials and Nanodevices
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Norbert Hampp
- Fachbereich Chemie
- Philipps Universität Marburg
- Marburg
- Germany
| | - Li Xu
- College of Science
- Nanjing Forestry University
- Nanjing
- P. R. China
| | - Aiguo Wu
- CAS Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province & Division of Functional Materials and Nanodevices
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
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32
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Maschmeyer P, Petkau G, Siracusa F, Zimmermann J, Zügel F, Kühl AA, Lehmann K, Schimmelpfennig S, Weber M, Haftmann C, Riedel R, Bardua M, Heinz GA, Tran CL, Hoyer BF, Hiepe F, Herzog S, Wittmann J, Rajewsky N, Melchers FG, Chang HD, Radbruch A, Mashreghi MF. Selective targeting of pro-inflammatory Th1 cells by microRNA-148a-specific antagomirs in vivo. J Autoimmun 2017; 89:41-52. [PMID: 29183643 PMCID: PMC5916452 DOI: 10.1016/j.jaut.2017.11.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 11/15/2017] [Accepted: 11/16/2017] [Indexed: 12/02/2022]
Abstract
In T lymphocytes, expression of miR-148a is induced by T-bet and Twist1, and is specific for pro-inflammatory Th1 cells. In these cells, miR-148a inhibits the expression of the pro-apoptotic protein Bim and promotes their survival. Here we use sequence-specific cholesterol-modified oligonucleotides against miR-148a (antagomir-148a) for the selective elimination of pro-inflammatory Th1 cells in vivo. In the murine model of transfer colitis, antagomir-148a treatment reduced the number of pro-inflammatory Th1 cells in the colon of colitic mice by 50% and inhibited miR-148a expression by 71% in the remaining Th1 cells. Expression of Bim protein in colonic Th1 cells was increased. Antagomir-148a-mediated reduction of Th1 cells resulted in a significant amelioration of colitis. The effect of antagomir-148a was selective for chronic inflammation. Antigen-specific memory Th cells that were generated by an acute immune reaction to nitrophenylacetyl-coupled chicken gamma globulin (NP-CGG) were not affected by treatment with antagomir-148a, both during the effector and the memory phase. In addition, antibody titers to NP-CGG were not altered. Thus, antagomir-148a might qualify as an effective drug to selectively deplete pro-inflammatory Th1 cells of chronic inflammation without affecting the protective immunological memory. Th1 cells expressing miR-148a mediate colitis in a murine model of IBD. Antagomir-148a inhibits colitis by selectively depleting Th1 cells from the colon. Antagomir-148a does not affect the protective immunological memory.
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Affiliation(s)
| | - Georg Petkau
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany
| | | | | | | | - Anja Andrea Kühl
- Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Campus Benjamin Franklin, Berlin, Germany
| | - Katrin Lehmann
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany
| | | | - Melanie Weber
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany
| | | | - René Riedel
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany
| | - Markus Bardua
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany
| | | | - Cam Loan Tran
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany
| | - Bimba Franziska Hoyer
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany; Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Campus Benjamin Franklin, Berlin, Germany
| | - Falk Hiepe
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany; Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Campus Benjamin Franklin, Berlin, Germany
| | - Sebastian Herzog
- Division of Developmental Immunology, BIOCENTER, Medical University Innsbruck, Innsbruck, Austria
| | - Jürgen Wittmann
- Division of Molecular Immunology, Department of Internal Medicine III, Nikolaus-Fiebiger-Center, University of Erlangen-Nürnberg, Erlangen, Germany
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Zimmermann J, Durek P, Kühl AA, Schattenberg F, Maschmeyer P, Siracusa F, Lehmann K, Westendorf K, Weber M, Riedel R, Müller S, Radbruch A, Chang HD. The intestinal microbiota determines the colitis-inducing potential of T-bet-deficient Th cells in mice. Eur J Immunol 2017; 48:161-167. [PMID: 28875499 PMCID: PMC5813160 DOI: 10.1002/eji.201747100] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 07/28/2017] [Accepted: 08/31/2017] [Indexed: 12/16/2022]
Abstract
Conflicting evidence has been provided as to whether induction of intestinal inflammation by adoptive transfer of naïve T cells into Rag-/- mice requires expression of the transcription factor T-bet by the T cells. Here, we formally show that the intestinal microbiota composition of the Rag-/- recipient determines whether or not T-bet-deficient Th cells can induce colitis and we have resolved the differences of the two microbiomes, permissive or non-permissive to T-bet-independent colitis. Our data highlight the dominance of the microbiota over particular T cell differentiation programs in the pathogenesis of chronic intestinal inflammation.
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Affiliation(s)
- Jakob Zimmermann
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany.,Maurice Müller Laboratories (DKF), Universitätsklinik für Viszerale Chirurgie & Medizin Inselspital, University of Bern, Bern, Switzerland
| | - Pawel Durek
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - Anja A Kühl
- Charité Universitätsmedizin, Campus Benjamin Franklin, Berlin, Germany
| | - Florian Schattenberg
- Helmholtzzentrum für Umweltforschung (UFZ) Leipzig, Department Umweltmikrobiologie, Leipzig, Germany
| | - Patrick Maschmeyer
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - Francesco Siracusa
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - Katrin Lehmann
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - Kerstin Westendorf
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - Melanie Weber
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - René Riedel
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany.,Max Planck Institute for Evolutionary Biology, Plön, Germany
| | - Susann Müller
- Helmholtzzentrum für Umweltforschung (UFZ) Leipzig, Department Umweltmikrobiologie, Leipzig, Germany
| | - Andreas Radbruch
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - Hyun-Dong Chang
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
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Kron A, Riedel R, Michels S, Fassunke J, Merkelbach-Bruse S, Scheffler M, Nogova L, Fischer R, Ueckeroth F, Abdulla D, Kron F, Pauli B, Kaminsky B, Braess J, Graeven U, Grohe C, Krueger S, Büttner R, Wolf J. Impact of co-occurring genomic alterations on overall survival of BRAF V600E and non-V600E mutated NSCLC patients: Results of the Network Genomic Medicine. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx380.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Riedel R, Kron A, Michels S, Fassunke J, Scheffler M, Fischer R, Nogova L, Abdulla D, Heydt C, Ueckeroth F, Pauli B, Serke M, Krueger S, Grohe C, Sebastian M, Koschel D, Kambartel KO, Zander T, Büttner R, Wolf J. Impact of next generation TKI and co-occurring mutations in ALK-positive NSCLC patients: Results of the Network Genomic Medicine. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx380.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zimmermann J, Hübschmann T, Schattenberg F, Schumann J, Durek P, Riedel R, Friedrich M, Glauben R, Siegmund B, Radbruch A, Müller S, Chang HD. High-resolution microbiota flow cytometry reveals dynamic colitis-associated changes in fecal bacterial composition. Eur J Immunol 2017; 46:1300-3. [PMID: 26909672 PMCID: PMC5084791 DOI: 10.1002/eji.201646297] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 02/10/2016] [Accepted: 02/19/2016] [Indexed: 01/27/2023]
Abstract
Using high‐resolution flow cytometry of bacterial shape (forward scatter) and DNA content (DAPI staining), we detected dramatic differences in the fecal microbiota composition during murine colitis that were validated using 16S rDNA sequencing. This innovative method provides a fast and inexpensive tool to interrogate the microbiota on the single‐cell level.
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Affiliation(s)
- Jakob Zimmermann
- German Rheumatism Research Center Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - Thomas Hübschmann
- Department for Environmental Microbiology, Helmholtz Center for Environmental Research (UFZ), Leipzig, Germany
| | - Florian Schattenberg
- Department for Environmental Microbiology, Helmholtz Center for Environmental Research (UFZ), Leipzig, Germany
| | - Joachim Schumann
- Department for Environmental Microbiology, Helmholtz Center for Environmental Research (UFZ), Leipzig, Germany
| | - Pawel Durek
- German Rheumatism Research Center Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - René Riedel
- German Rheumatism Research Center Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - Marie Friedrich
- Charité - Universitätsmedizin Berlin, Medical Department (Gastroenterology, Infectious Diseases, Rheumatology), Campus Benjamin Franklin, Berlin, Germany
| | - Rainer Glauben
- Charité - Universitätsmedizin Berlin, Medical Department (Gastroenterology, Infectious Diseases, Rheumatology), Campus Benjamin Franklin, Berlin, Germany
| | - Britta Siegmund
- Charité - Universitätsmedizin Berlin, Medical Department (Gastroenterology, Infectious Diseases, Rheumatology), Campus Benjamin Franklin, Berlin, Germany
| | - Andreas Radbruch
- German Rheumatism Research Center Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - Susann Müller
- Department for Environmental Microbiology, Helmholtz Center for Environmental Research (UFZ), Leipzig, Germany
| | - Hyun-Dong Chang
- German Rheumatism Research Center Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
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Yang F, Riedel R, Del Pino P, Pelaz B, Said AH, Soliman M, Pinnapireddy SR, Feliu N, Parak WJ, Bakowsky U, Hampp N. Real-time, label-free monitoring of cell viability based on cell adhesion measurements with an atomic force microscope. J Nanobiotechnology 2017; 15:23. [PMID: 28330480 PMCID: PMC5361698 DOI: 10.1186/s12951-017-0256-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 11/16/2016] [Accepted: 03/08/2017] [Indexed: 12/27/2022] Open
Abstract
Background The adhesion of cells to an oscillating cantilever sensitively influences the oscillation amplitude at a given frequency. Even early stages of cytotoxicity cause a change in the viscosity of the cell membrane and morphology, both affecting their adhesion to the cantilever. We present a generally applicable method for real-time, label free monitoring and fast-screening technique to assess early stages of cytotoxicity recorded in terms of loss of cell adhesion. Results We present data taken from gold nanoparticles of different sizes and surface coatings as well as some reference substances like ethanol, cadmium chloride, and staurosporine. Measurements were recorded with two different cell lines, HeLa and MCF7 cells. The results obtained from gold nanoparticles confirm earlier findings and attest the easiness and effectiveness of the method. Conclusions The reported method allows to easily adapt virtually every AFM to screen and assess toxicity of compounds in terms of cell adhesion with little modifications as long as a flow cell is available. The sensitivity of the method is good enough indicating that even single cell analysis seems possible. Electronic supplementary material The online version of this article (doi:10.1186/s12951-017-0256-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Fang Yang
- Department of Chemistry, University of Marburg, Marburg, Germany
| | - René Riedel
- Department of Chemistry, University of Marburg, Marburg, Germany
| | - Pablo Del Pino
- Department of Physics, University of Marburg, Marburg, Germany
| | - Beatriz Pelaz
- Department of Physics, University of Marburg, Marburg, Germany
| | | | - Mahmoud Soliman
- Department of Physics, University of Marburg, Marburg, Germany
| | | | - Neus Feliu
- Department of Physics, University of Marburg, Marburg, Germany
| | - Wolfgang J Parak
- Department of Physics, University of Marburg, Marburg, Germany.,CIC biomaGUNE, San Sebastián, Spain
| | - Udo Bakowsky
- Department of Pharmacy, University of Marburg, Marburg, Germany
| | - Norbert Hampp
- Department of Chemistry, University of Marburg, Marburg, Germany. .,Material Science Center, University of Marburg, Marburg, Germany.
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Riedel R, Pérez Pérez A, Maskin B, Jaime M, Parolini O, Sánchez-Margalet V, Varone C, Maymó J. Amniotic membrane conditioned medium promotes cell death and inhibits proliferation of hepatocarcinoma HepG2 cells. Placenta 2017. [DOI: 10.1016/j.placenta.2017.01.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Riedel R, Schmieder A, Koster A, Kim S, Baumgarten G, Schewe JC. [Heparin-induced thrombocytopenia type II (HIT II) : A medical-economic view]. Med Klin Intensivmed Notfmed 2016; 112:334-346. [PMID: 28005139 DOI: 10.1007/s00063-016-0237-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 10/18/2016] [Accepted: 11/06/2016] [Indexed: 11/26/2022]
Abstract
BACKGROUND In the context of inpatient and increasingly ambulatory thrombosis prophylaxis, heparins have been recognised as standard therapy for decades. In addition to the therapeutic benefit, therapy with heparins also entails the risk of undesirable side effects, such as bleeding and thrombocytopenia. Heparin-induced thrombocytopenia (HIT II) is deemed a serious side effect. AIM In the following work, HIT II is subjected to a medico-economic consideration (treatment, pharmaceuticals, subsequent costs due to possible complications) and, with regard to a possible HIT II prophylaxis, aspects of increasingly respected patient safety are also considered. METHODS In the context of a literature search the active ingredients argatroban and danaparoid, which are approved for HIT II treatment, were evaluated. RESULTS HIT II - especially in combination with thromboembolic complications - represents a medical-economic burden for the hospital. Although this is only an orientation guide, it shows that HIT II syndrome is not adequately cost-covered by the G‑DRG system. An early thrombosis prophylaxis with argatroban/danaparoid for HIT II risk patients should therefore be taken into account for medical-related as well as patient safety-relevant aspects. According to experience, the pharmaceutical supply for these medically needed products (anticoagulants) should be ensured for reasons of patient safety. CONCLUSION The risk of an immunological response to heparin therapy is known. Within the context of increased patient safety, thrombosis prophylaxis should be issued with a risk-adjusted prophylaxis.
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Affiliation(s)
- R Riedel
- Institut für Medizinökonomie und Medizinische Versorgungsforschung, Rheinische Fachhochschule Köln gGmbH, Schaevenstr. 1 b, 50676, Köln, Deutschland.
| | - A Schmieder
- Studiengang MSc Medizinökonomie, Rheinische Fachhochschule Köln gGmbH, Köln, Deutschland
| | - A Koster
- Institut für Anästhesiologie, Herz- und Diabeteszentrum NRW (HDZ), Bad Oeynhausen, Deutschland
| | - S Kim
- Klinik und Poliklinik für Anästhesiologie, Universitätsklinikum Bonn, Bonn, Deutschland
| | - G Baumgarten
- Klinik und Poliklinik für Anästhesiologie, Universitätsklinikum Bonn, Bonn, Deutschland
| | - J C Schewe
- DESA, Operative Intensivmedizin, Klinik und Poliklinik für Anästhesiologie und operative Intensivmedizin, Universitätsklinikum Bonn, Bonn, Deutschland
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Zimmermann J, Kühl AA, Weber M, Grün JR, Löffler J, Haftmann C, Riedel R, Maschmeyer P, Lehmann K, Westendorf K, Mashreghi MF, Löhning M, Mack M, Radbruch A, Chang HD. T-bet expression by Th cells promotes type 1 inflammation but is dispensable for colitis. Mucosal Immunol 2016; 9:1487-1499. [PMID: 26883725 DOI: 10.1038/mi.2016.5] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 01/03/2016] [Indexed: 02/04/2023]
Abstract
The transcription factor T-bet is highly expressed by Th cells isolated from the inflamed intestine of Crohn's disease patients, and has been regarded a critical driver of murine T cell-induced colitis. However, we show here that T-bet expression by Th cells is not required for the manifestation of T-cell-induced colitis in the presence of segmented filamentous bacteria and Helicobacter hepaticus. T-bet expression by Th cells controls their survival and localization, their repertoire of chemokine and chemokine receptor expression, the accumulation of monocytes and macrophages in the inflamed colon, and their differentiation to the M1 type, i.e., type 1 inflammation. Nevertheless, T-bet-deficient Th cells efficiently induce colitis, as reflected by weight loss, diarrhea, and colon histopathology. T-bet-deficient Th cells differentiate into Th1/17 cells, able to express IFN-γ and IL-17A upon restimulation. While neutralization of IL-17A exacerbated colitis induced by wild-type or T-bet-deficient Th cells, neutralization of IFN-γ completely abolished colitis.
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Affiliation(s)
- J Zimmermann
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - A A Kühl
- Charité Universitätsmedizin, Campus Benjamin Franklin, Berlin, Germany
| | - M Weber
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - J R Grün
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - J Löffler
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - C Haftmann
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - R Riedel
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - P Maschmeyer
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - K Lehmann
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - K Westendorf
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - M-F Mashreghi
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - M Löhning
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - M Mack
- Universitätsklinikum Regensburg, Regensburg, Germany
| | - A Radbruch
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - H D Chang
- Deutsches Rheumaforschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
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Tap W, Papai Z, van Tine B, Attia S, Ganjoo K, Jones R, Schuetze S, Reed D, Chawla S, Riedel R, Krarup-Hansen A, Italiano A, Hohenberger P, Grignani G, Cranmer L, Alcindor T, Lopez-Pousa A, Pearce T, Kroll S, Schoffski P. Randomized phase 3, multicenter, open-label study comparing evofosfamide (Evo) in combination with doxorubicin (D) vs. D alone in patients (pts) with advanced soft tissue sarcoma (STS): Study TH-CR-406/SARC021. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw388.01] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Riedel R. European patient's cross-border mobility directive. Public Health 2016; 139:222-223. [DOI: 10.1016/j.puhe.2016.04.017] [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] [Received: 02/14/2016] [Accepted: 04/27/2016] [Indexed: 11/27/2022]
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44
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del Pino P, Yang F, Pelaz B, Zhang Q, Kantner K, Hartmann R, Martinez de Baroja N, Gallego M, Möller M, Manshian BB, Soenen SJ, Riedel R, Hampp N, Parak WJ. Basic Physicochemical Properties of Polyethylene Glycol Coated Gold Nanoparticles that Determine Their Interaction with Cells. Angew Chem Int Ed Engl 2016; 55:5483-7. [DOI: 10.1002/anie.201511733] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/08/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Pablo del Pino
- Fachbereich Physik Philipps Universität Marburg Marburg Germany
- CIC biomaGUNE San Sebastian Spain
| | - Fang Yang
- Fachbereich Chemie Philipps Universität Marburg Marburg Germany
| | - Beatriz Pelaz
- Fachbereich Physik Philipps Universität Marburg Marburg Germany
| | - Qian Zhang
- Fachbereich Physik Philipps Universität Marburg Marburg Germany
| | - Karsten Kantner
- Fachbereich Physik Philipps Universität Marburg Marburg Germany
| | - Raimo Hartmann
- Fachbereich Physik Philipps Universität Marburg Marburg Germany
| | | | | | | | | | | | - René Riedel
- Fachbereich Chemie Philipps Universität Marburg Marburg Germany
| | - Norbert Hampp
- Fachbereich Chemie Philipps Universität Marburg Marburg Germany
| | - Wolfgang J. Parak
- Fachbereich Physik Philipps Universität Marburg Marburg Germany
- CIC biomaGUNE San Sebastian Spain
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del Pino P, Yang F, Pelaz B, Zhang Q, Kantner K, Hartmann R, Martinez de Baroja N, Gallego M, Möller M, Manshian BB, Soenen SJ, Riedel R, Hampp N, Parak WJ. Basic Physicochemical Properties of Polyethylene Glycol Coated Gold Nanoparticles that Determine Their Interaction with Cells. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511733] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Pablo del Pino
- Fachbereich Physik Philipps Universität Marburg Marburg Germany
- CIC biomaGUNE San Sebastian Spain
| | - Fang Yang
- Fachbereich Chemie Philipps Universität Marburg Marburg Germany
| | - Beatriz Pelaz
- Fachbereich Physik Philipps Universität Marburg Marburg Germany
| | - Qian Zhang
- Fachbereich Physik Philipps Universität Marburg Marburg Germany
| | - Karsten Kantner
- Fachbereich Physik Philipps Universität Marburg Marburg Germany
| | - Raimo Hartmann
- Fachbereich Physik Philipps Universität Marburg Marburg Germany
| | | | | | | | | | | | - René Riedel
- Fachbereich Chemie Philipps Universität Marburg Marburg Germany
| | - Norbert Hampp
- Fachbereich Chemie Philipps Universität Marburg Marburg Germany
| | - Wolfgang J. Parak
- Fachbereich Physik Philipps Universität Marburg Marburg Germany
- CIC biomaGUNE San Sebastian Spain
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46
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Lungerich D, Reger D, Hölzel H, Riedel R, Martin MMJC, Hampel F, Jux N. Eine Strategie zur Synthese ungewöhnlicher Hexaarylbenzole im Multigramm‐Maßstab. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600841] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Dominik Lungerich
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-Universität Erlangen-Nürnberg Henkestraße 42 91054 Erlangen Deutschland
| | - David Reger
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-Universität Erlangen-Nürnberg Henkestraße 42 91054 Erlangen Deutschland
| | - Helen Hölzel
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-Universität Erlangen-Nürnberg Henkestraße 42 91054 Erlangen Deutschland
| | - René Riedel
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-Universität Erlangen-Nürnberg Henkestraße 42 91054 Erlangen Deutschland
| | - Max M. J. C. Martin
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-Universität Erlangen-Nürnberg Henkestraße 42 91054 Erlangen Deutschland
| | - Frank Hampel
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-Universität Erlangen-Nürnberg Henkestraße 42 91054 Erlangen Deutschland
| | - Norbert Jux
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-Universität Erlangen-Nürnberg Henkestraße 42 91054 Erlangen Deutschland
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Lungerich D, Reger D, Hölzel H, Riedel R, Martin MMJC, Hampel F, Jux N. A Strategy towards the Multigram Synthesis of Uncommon Hexaarylbenzenes. Angew Chem Int Ed Engl 2016; 55:5602-5. [DOI: 10.1002/anie.201600841] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Dominik Lungerich
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-Universität Erlangen-Nürnberg Henkestrasse 42 91054 Erlangen Germany
| | - David Reger
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-Universität Erlangen-Nürnberg Henkestrasse 42 91054 Erlangen Germany
| | - Helen Hölzel
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-Universität Erlangen-Nürnberg Henkestrasse 42 91054 Erlangen Germany
| | - René Riedel
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-Universität Erlangen-Nürnberg Henkestrasse 42 91054 Erlangen Germany
| | - Max M. J. C. Martin
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-Universität Erlangen-Nürnberg Henkestrasse 42 91054 Erlangen Germany
| | - Frank Hampel
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-Universität Erlangen-Nürnberg Henkestrasse 42 91054 Erlangen Germany
| | - Norbert Jux
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-Universität Erlangen-Nürnberg Henkestrasse 42 91054 Erlangen Germany
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48
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Maschmeyer P, Zimmermann J, Tran CL, Haftmann C, Rausch B, Riedel R, Herzog S, Chang HD, Radbruch A, Mashreghi MF. A7.19 Systemic inhibition of MIR-148A by antagomirs reduces CD4 +T helper cell numbers and alleviates inflammation in a preclinical model of transfer colitis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-209124.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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49
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Lemke A, Kraft M, Roth K, Riedel R, Lammerding D, Hauser AE. Long-lived plasma cells are generated in mucosal immune responses and contribute to the bone marrow plasma cell pool in mice. Mucosal Immunol 2016; 9:83-97. [PMID: 25943272 DOI: 10.1038/mi.2015.38] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Accepted: 03/24/2015] [Indexed: 02/04/2023]
Abstract
During systemic immune responses, plasma blasts are generated in secondary lymphoid organs and migrate to the bone marrow, where they can become long-lived, being responsible for the maintenance of long-term antibody titers. Plasma blasts generated in mucosal immune responses of the small intestine home to the lamina propria (LP), producing mainly immunoglobulin A. The migration of these antibody-secreting cells is well characterized during acute immune responses. Less is known about their lifetime and contribution to the long-lived bone marrow compartment. Here we investigate the lifetime of plasma cells (PCs) and the relationship between the PC compartments of the gut and bone marrow after oral immunization. Our findings indicate that PCs in the LP can survive for extended time periods. PCs specific for orally administered antigens can be detected in the bone marrow for at least 9 months after immunization, indicating that the mucosal PC compartment can contribute to the long-lived PC pool in this organ, independent of the participation of splenic B cells. Our findings suggest that the compartmentalization between mucosal and systemic PC pools is less strict than previously thought. This may have implications for the development of vaccines as well as for autoantibody-mediated diseases.
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Affiliation(s)
- A Lemke
- Deutsches Rheuma Forschungszentrum (DRFZ), a Leibniz Institute, Berlin, Germany
| | - M Kraft
- Deutsches Rheuma Forschungszentrum (DRFZ), a Leibniz Institute, Berlin, Germany.,Charité Universitätsmedizin, Charitéplatz 1, Berlin, Germany
| | - K Roth
- Deutsches Rheuma Forschungszentrum (DRFZ), a Leibniz Institute, Berlin, Germany
| | - R Riedel
- Deutsches Rheuma Forschungszentrum (DRFZ), a Leibniz Institute, Berlin, Germany
| | - D Lammerding
- Deutsches Rheuma Forschungszentrum (DRFZ), a Leibniz Institute, Berlin, Germany.,Charité Universitätsmedizin, Charitéplatz 1, Berlin, Germany
| | - A E Hauser
- Deutsches Rheuma Forschungszentrum (DRFZ), a Leibniz Institute, Berlin, Germany.,Charité Universitätsmedizin, Charitéplatz 1, Berlin, Germany
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50
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Thiele G, Donsbach C, Riedel R, Marsch M, Harms K, Dehnen S. Smallest molecular chalcogenidometalate anions of the heaviest metals: syntheses, structures, and their interconversion. Dalton Trans 2015; 45:5958-67. [PMID: 26605971 DOI: 10.1039/c5dt03996g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The syntheses of the first molecular meta-selenidomercurate(ii), ortho-telluridothallate(iii) and a hydrate of an ortho-selenidoplubate(iv) are presented alongside an improved and facile synthesis of the selenidobismuthate(iii) with almost quantitative yields. By means of quantum chemical calculations, the energetics of the interconversions of small metalate anions is discussed and the existence of the heaviest homologues of [NO2](-), [NO3](-), [PO4](2-) and [CO3](2-) are predicted.
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Affiliation(s)
- G Thiele
- Philipps-Universität Marburg, Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften, Hans-Meerwein-Straße 4, D-35043 Marburg, Germany.
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