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Stickel N, Hanke K, Marschner D, Prinz G, Köhler M, Melchinger W, Pfeifer D, Schmitt-Graeff A, Brummer T, Heine A, Brossart P, Wolf D, von Bubnoff N, Finke J, Duyster J, Ferrara J, Salzer U, Zeiser R. MicroRNA-146a reduces MHC-II expression via targeting JAK/STAT signaling in dendritic cells after stem cell transplantation. Leukemia 2017; 31:2732-2741. [PMID: 28484267 PMCID: PMC6231537 DOI: 10.1038/leu.2017.137] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [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] [Received: 01/16/2017] [Revised: 04/13/2017] [Accepted: 04/24/2017] [Indexed: 02/07/2023]
Abstract
Acute Graft-versus-host disease (GVHD) is a major immunological complication after allogeneic hematopoietic cell transplantation and a better understanding of the molecular regulation of the disease could help to develop novel targeted therapies. Here we found that a G/C polymorphism within the human microRNA-146a (miR-146a) gene of transplant-recipients, which causes reduced miR-146a levels, was strongly associated with the risk of developing severe acute GVHD (n=289). In mice, deficiency of miR-146a in the hematopoietic system or transfer of recipient-type miR 146a-/- dendritic cells (DCs) enhanced GVHD, while miR-146a mimic-transfected-DCs ameliorated disease. Mechanistically, lack of miR-146a enhanced JAK2 STAT1-pathway activity, which led to higher expression of class II-transactivator (CIITA) and consecutively increased MHCII-levels on DCs. Inhibition of JAK1/2 or CIITA knockdown in DCs prevented miR-146a-/- DC-induced GVHD exacerbation. Consistent with our findings in mice, patients with the miR-146a polymorphism rs2910164 in hematopoietic cells displayed higher MHCII levels on monocytes, which could be targeted by JAK1/2-inhibition. Our findings indicate that the miR-146a polymorphism rs2910164 identifies patients at high risk for GVHD before allo HCT. Functionally we show that miR-146a acts as a central regulator of recipient-type DC activation during GVHD by dampening the pro-inflammatory JAK-STAT/CIITA/MHCII axis, which provides a scientific rationale for early JAK1/2-inhibition in selected patients.
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Affiliation(s)
- N Stickel
- Department of Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine, ALU Freiburg, Germany.,Faculty of Biology, ALU Freiburg, Germany
| | - K Hanke
- Department of Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Faculty of Biology, ALU Freiburg, Germany
| | - D Marschner
- Department of Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - G Prinz
- Department of Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - M Köhler
- Spemann Graduate School of Biology and Medicine, ALU Freiburg, Germany.,Faculty of Biology, ALU Freiburg, Germany.,Signal Transduction in Tumour Development and Drug Resistance Group, Institute of Molecular Medicine and Cell Research (IMMZ), ALU Freiburg, Germany
| | - W Melchinger
- Department of Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - D Pfeifer
- Department of Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - A Schmitt-Graeff
- Department of Pathology, Freiburg University Medical Center, ALU Freiburg, Germany
| | - T Brummer
- Signal Transduction in Tumour Development and Drug Resistance Group, Institute of Molecular Medicine and Cell Research (IMMZ), ALU Freiburg, Germany.,Centre for Biological Signaling Studies BIOSS, ALU Freiburg, Germany
| | - A Heine
- Medical Clinic III, Oncology, Hematology and Rheumatology, University Hospital Bonn (UKB), Bonn, Germany
| | - P Brossart
- Medical Clinic III, Oncology, Hematology and Rheumatology, University Hospital Bonn (UKB), Bonn, Germany
| | - D Wolf
- Medical Clinic III, Oncology, Hematology and Rheumatology, University Hospital Bonn (UKB), Bonn, Germany
| | - N von Bubnoff
- Department of Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,German Cancer Consortium (DKTK), Freiburg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - J Finke
- Department of Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - J Duyster
- Department of Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - J Ferrara
- Department of Medicine, Hematology and Medical Oncology, Mount Sinai Hospital, New York, NY, USA
| | - U Salzer
- Center for Chronic Immunodeficiency, University Medical Center Freiburg and University of Freiburg, Germany.,Department of Rheumatology and Clinical Immunology, University Medical Center Freiburg, Germany
| | - R Zeiser
- Department of Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Centre for Biological Signaling Studies BIOSS, ALU Freiburg, Germany.,German Cancer Consortium (DKTK), Freiburg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
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Dorhoi A, Desel C, Yeremeev V, Pradl L, Brinkmann V, Mollenkopf HJ, Hanke K, Gross O, Ruland J, Kaufmann SHE. The adaptor molecule CARD9 is essential for tuberculosis control. ACTA ACUST UNITED AC 2010; 207:777-92. [PMID: 20351059 PMCID: PMC2856020 DOI: 10.1084/jem.20090067] [Citation(s) in RCA: 162] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The cross talk between host and pathogen starts with recognition of bacterial signatures through pattern recognition receptors (PRRs), which mobilize downstream signaling cascades. We investigated the role of the cytosolic adaptor caspase recruitment domain family, member 9 (CARD9) in tuberculosis. This adaptor was critical for full activation of innate immunity by converging signals downstream of multiple PRRs. Card9(-/-) mice succumbed early after aerosol infection, with higher mycobacterial burden, pyogranulomatous pneumonia, accelerated granulocyte recruitment, and higher abundance of proinflammatory cytokines and granulocyte colony-stimulating factor (G-CSF) in serum and lung. Neutralization of G-CSF and neutrophil depletion significantly prolonged survival, indicating that an exacerbated systemic inflammatory disease triggered lethality of Card9(-/-) mice. CARD9 deficiency had no apparent effect on T cell responses, but a marked impact on the hematopoietic compartment. Card9(-/-) granulocytes failed to produce IL-10 after Mycobacterium tuberculosis infection, suggesting that an absent antiinflammatory feedback loop accounted for granulocyte-dominated pathology, uncontrolled bacterial replication, and, ultimately, death of infected Card9(-/-) mice. Our data provide evidence that deregulated innate responses trigger excessive lung inflammation and demonstrate a pivotal role of CARD9 signaling in autonomous innate host defense against tuberculosis.
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Affiliation(s)
- Anca Dorhoi
- Max Planck Institute for Infection Biology, Department of Immunology, 10117 Berlin, Germany
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Fradin C, Mavor AL, Weindl G, Schaller M, Hanke K, Kaufmann SHE, Mollenkopf H, Hube B. The early transcriptional response of human granulocytes to infection with Candida albicans is not essential for killing but reflects cellular communications. Infect Immun 2006; 75:1493-501. [PMID: 17145939 PMCID: PMC1828553 DOI: 10.1128/iai.01651-06] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Candida albicans is a polymorphic opportunistic fungus that can cause life-threatening systemic infections following hematogenous dissemination in patients susceptible to nosocomial infection. Neutrophils form part of the innate immune response, which is the first line of defense against microbes and is particularly important in C. albicans infections. To compare the transcriptional response of leukocytes exposed to C. albicans, we investigated the expression of key cytokine genes in polymorphonuclear and mononuclear leukocytes after incubation with C. albicans for 1 h. Isolated mononuclear cells expressed high levels of genes encoding proinflammatory signaling molecules, whereas neutrophils exhibited much lower levels, similar to those observed in whole blood. The global transcriptional profile of neutrophils was examined by using an immunology-biased human microarray to determine whether different morphological forms or the viability of C. albicans altered the transcriptome. Hyphal cells appeared to have the broadest effect, although the most strongly induced genes were regulated independently of morphology or viability. These genes were involved in proinflammatory cell-cell signaling, cell signal transduction, and cell growth. Generally, genes encoding known components of neutrophil granules showed no upregulation at this time point; however, lactoferrin, a well-known candidacidal peptide, was secreted by neutrophils. Addition to inhibitors of RNA or protein de novo synthesis did not influence the killing activity within 30 min. These results support the general notion that neutrophils do not require gene transcription to mount an immediate and direct attack against microbes. However, neutrophils exposed to C. albicans express genes involved in communication with other immune cells.
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Affiliation(s)
- Chantal Fradin
- Robert Koch Institute, Nordufer, 20, Berlin 13353, Germany, Department of Dermatology, University of Tübingen, Liebermeisterstrasse 25, Tübingen 72076, Germany, Max Planck Institute for Infection Biology, Berlin, Germany, Inserm U799, Université de Lille2, Lille 59045, France, Friedrich Schiller University, Jena, and Department of Microbial Pathogenicity, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knoell Institute Jena, 07745 Jena, Germany
| | - Abigail L. Mavor
- Robert Koch Institute, Nordufer, 20, Berlin 13353, Germany, Department of Dermatology, University of Tübingen, Liebermeisterstrasse 25, Tübingen 72076, Germany, Max Planck Institute for Infection Biology, Berlin, Germany, Inserm U799, Université de Lille2, Lille 59045, France, Friedrich Schiller University, Jena, and Department of Microbial Pathogenicity, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knoell Institute Jena, 07745 Jena, Germany
| | - Günther Weindl
- Robert Koch Institute, Nordufer, 20, Berlin 13353, Germany, Department of Dermatology, University of Tübingen, Liebermeisterstrasse 25, Tübingen 72076, Germany, Max Planck Institute for Infection Biology, Berlin, Germany, Inserm U799, Université de Lille2, Lille 59045, France, Friedrich Schiller University, Jena, and Department of Microbial Pathogenicity, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knoell Institute Jena, 07745 Jena, Germany
| | - Martin Schaller
- Robert Koch Institute, Nordufer, 20, Berlin 13353, Germany, Department of Dermatology, University of Tübingen, Liebermeisterstrasse 25, Tübingen 72076, Germany, Max Planck Institute for Infection Biology, Berlin, Germany, Inserm U799, Université de Lille2, Lille 59045, France, Friedrich Schiller University, Jena, and Department of Microbial Pathogenicity, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knoell Institute Jena, 07745 Jena, Germany
| | - Karin Hanke
- Robert Koch Institute, Nordufer, 20, Berlin 13353, Germany, Department of Dermatology, University of Tübingen, Liebermeisterstrasse 25, Tübingen 72076, Germany, Max Planck Institute for Infection Biology, Berlin, Germany, Inserm U799, Université de Lille2, Lille 59045, France, Friedrich Schiller University, Jena, and Department of Microbial Pathogenicity, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knoell Institute Jena, 07745 Jena, Germany
| | - Stefan H. E. Kaufmann
- Robert Koch Institute, Nordufer, 20, Berlin 13353, Germany, Department of Dermatology, University of Tübingen, Liebermeisterstrasse 25, Tübingen 72076, Germany, Max Planck Institute for Infection Biology, Berlin, Germany, Inserm U799, Université de Lille2, Lille 59045, France, Friedrich Schiller University, Jena, and Department of Microbial Pathogenicity, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knoell Institute Jena, 07745 Jena, Germany
| | - Hans Mollenkopf
- Robert Koch Institute, Nordufer, 20, Berlin 13353, Germany, Department of Dermatology, University of Tübingen, Liebermeisterstrasse 25, Tübingen 72076, Germany, Max Planck Institute for Infection Biology, Berlin, Germany, Inserm U799, Université de Lille2, Lille 59045, France, Friedrich Schiller University, Jena, and Department of Microbial Pathogenicity, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knoell Institute Jena, 07745 Jena, Germany
| | - Bernhard Hube
- Robert Koch Institute, Nordufer, 20, Berlin 13353, Germany, Department of Dermatology, University of Tübingen, Liebermeisterstrasse 25, Tübingen 72076, Germany, Max Planck Institute for Infection Biology, Berlin, Germany, Inserm U799, Université de Lille2, Lille 59045, France, Friedrich Schiller University, Jena, and Department of Microbial Pathogenicity, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knoell Institute Jena, 07745 Jena, Germany
- Corresponding author. Mailing address: Department of Microbial Pathogenicity, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knoell Institute Jena, Beutenbergstrasse 11a, 07745 Jena, Germany. Phone: 49(0)3641-656880. Fax: 49(0)3641-656882. E-mail:
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