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Mayr CH, Sengupta A, Asgharpour S, Ansari M, Pestoni JC, Ogar P, Angelidis I, Liontos A, Rodriguez-Castillo JA, Lang NJ, Strunz M, Porras-Gonzalez D, Gerckens M, De Sadeleer LJ, Oehrle B, Viteri-Alvarez V, Fernandez IE, Tallquist M, Irmler M, Beckers J, Eickelberg O, Stoleriu GM, Behr J, Kneidinger N, Wuyts WA, Wasnick RM, Yildirim AÖ, Ahlbrecht K, Morty RE, Samakovlis C, Theis FJ, Burgstaller G, Schiller HB. Sfrp1 inhibits lung fibroblast invasion during transition to injury-induced myofibroblasts. Eur Respir J 2024; 63:2301326. [PMID: 38212077 PMCID: PMC10850614 DOI: 10.1183/13993003.01326-2023] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 11/13/2023] [Indexed: 01/13/2024]
Abstract
BACKGROUND Fibroblast-to-myofibroblast conversion is a major driver of tissue remodelling in organ fibrosis. Distinct lineages of fibroblasts support homeostatic tissue niche functions, yet their specific activation states and phenotypic trajectories during injury and repair have remained unclear. METHODS We combined spatial transcriptomics, multiplexed immunostainings, longitudinal single-cell RNA-sequencing and genetic lineage tracing to study fibroblast fates during mouse lung regeneration. Our findings were validated in idiopathic pulmonary fibrosis patient tissues in situ as well as in cell differentiation and invasion assays using patient lung fibroblasts. Cell differentiation and invasion assays established a function of SFRP1 in regulating human lung fibroblast invasion in response to transforming growth factor (TGF)β1. MEASUREMENTS AND MAIN RESULTS We discovered a transitional fibroblast state characterised by high Sfrp1 expression, derived from both Tcf21-Cre lineage positive and negative cells. Sfrp1 + cells appeared early after injury in peribronchiolar, adventitial and alveolar locations and preceded the emergence of myofibroblasts. We identified lineage-specific paracrine signals and inferred converging transcriptional trajectories towards Sfrp1 + transitional fibroblasts and Cthrc1 + myofibroblasts. TGFβ1 downregulated SFRP1 in noninvasive transitional cells and induced their switch to an invasive CTHRC1+ myofibroblast identity. Finally, using loss-of-function studies we showed that SFRP1 modulates TGFβ1-induced fibroblast invasion and RHOA pathway activity. CONCLUSIONS Our study reveals the convergence of spatially and transcriptionally distinct fibroblast lineages into transcriptionally uniform myofibroblasts and identifies SFRP1 as a modulator of TGFβ1-driven fibroblast phenotypes in fibrogenesis. These findings are relevant in the context of therapeutic interventions that aim at limiting or reversing fibroblast foci formation.
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Affiliation(s)
- Christoph H Mayr
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
- C.H. Mayr and A. Sengupta contributed equally to this work
| | - Arunima Sengupta
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
- C.H. Mayr and A. Sengupta contributed equally to this work
| | - Sara Asgharpour
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Meshal Ansari
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
- Institute of Computational Biology, Helmholtz Munich, Munich, Germany
| | - Jeanine C Pestoni
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Paulina Ogar
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Ilias Angelidis
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Andreas Liontos
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
- SciLifeLab, Stockholm, Sweden
| | | | - Niklas J Lang
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Maximilian Strunz
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Diana Porras-Gonzalez
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Michael Gerckens
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
- Department of Internal Medicine V, Ludwig-Maximilians University (LMU) Munich, Member of the German Center for Lung Research (DZL), CPC-M bioArchive, Munich, Germany
| | - Laurens J De Sadeleer
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department CHROMETA, KU Leuven, Leuven, Belgium
| | - Bettina Oehrle
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Valeria Viteri-Alvarez
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Isis E Fernandez
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Michelle Tallquist
- Center for Cardiovascular Research, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
| | - Martin Irmler
- Institute of Experimental Genetics, Helmholtz Zentrum München, Neuherberg, Germany
| | - Johannes Beckers
- Institute of Experimental Genetics, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD e.V.), Neuherberg, Germany
- Chair of Experimental Genetics, Technical University of Munich, Freising, Germany
| | - Oliver Eickelberg
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Gabriel Mircea Stoleriu
- Department of Internal Medicine V, Ludwig-Maximilians University (LMU) Munich, Member of the German Center for Lung Research (DZL), CPC-M bioArchive, Munich, Germany
| | - Jürgen Behr
- Department of Internal Medicine V, Ludwig-Maximilians University (LMU) Munich, Member of the German Center for Lung Research (DZL), CPC-M bioArchive, Munich, Germany
| | - Nikolaus Kneidinger
- Department of Internal Medicine V, Ludwig-Maximilians University (LMU) Munich, Member of the German Center for Lung Research (DZL), CPC-M bioArchive, Munich, Germany
| | - Wim A Wuyts
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department CHROMETA, KU Leuven, Leuven, Belgium
| | - Roxana Maria Wasnick
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Ali Önder Yildirim
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
- Institute of Experimental Pneumology, LMU University Hospital, Ludwig-Maximilians University, Munich, Germany
| | - Katrin Ahlbrecht
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Bad Nauheim, Germany
| | - Rory E Morty
- Department of Translational Pulmonology, University Hospital Heidelberg, and Translational Lung Research Center (TLRC), Member of the German Center for Lung Research (DZL), Heidelberg, Germany
| | - Christos Samakovlis
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
- SciLifeLab, Stockholm, Sweden
| | - Fabian J Theis
- Institute of Computational Biology, Helmholtz Munich, Munich, Germany
- Department of Mathematics, Technische Universität München, Munich, Germany
| | - Gerald Burgstaller
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
- G. Burgstaller and H.B. Schiller contributed equally to this article as lead authors and supervised the work
| | - Herbert B Schiller
- Comprehensive Pneumology Center (CPC)/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
- Institute of Experimental Pneumology, LMU University Hospital, Ludwig-Maximilians University, Munich, Germany
- G. Burgstaller and H.B. Schiller contributed equally to this article as lead authors and supervised the work
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Lang NJ, Gote-Schniering J, Porras-Gonzalez D, Yang L, De Sadeleer LJ, Jentzsch RC, Shitov VA, Zhou S, Ansari M, Agami A, Mayr CH, Hooshiar Kashani B, Chen Y, Heumos L, Pestoni JC, Molnar ES, Geeraerts E, Anquetil V, Saniere L, Wögrath M, Gerckens M, Lehmann M, Yildirim AÖ, Hatz R, Kneidinger N, Behr J, Wuyts WA, Stoleriu MG, Luecken MD, Theis FJ, Burgstaller G, Schiller HB. Ex vivo tissue perturbations coupled to single-cell RNA-seq reveal multilineage cell circuit dynamics in human lung fibrogenesis. Sci Transl Med 2023; 15:eadh0908. [PMID: 38055803 DOI: 10.1126/scitranslmed.adh0908] [Citation(s) in RCA: 2] [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] [Received: 02/09/2023] [Accepted: 11/16/2023] [Indexed: 12/08/2023]
Abstract
Pulmonary fibrosis develops as a consequence of failed regeneration after injury. Analyzing mechanisms of regeneration and fibrogenesis directly in human tissue has been hampered by the lack of organotypic models and analytical techniques. In this work, we coupled ex vivo cytokine and drug perturbations of human precision-cut lung slices (hPCLS) with single-cell RNA sequencing and induced a multilineage circuit of fibrogenic cell states in hPCLS. We showed that these cell states were highly similar to the in vivo cell circuit in a multicohort lung cell atlas from patients with pulmonary fibrosis. Using micro-CT-staged patient tissues, we characterized the appearance and interaction of myofibroblasts, an ectopic endothelial cell state, and basaloid epithelial cells in the thickened alveolar septum of early-stage lung fibrosis. Induction of these states in the hPCLS model provided evidence that the basaloid cell state was derived from alveolar type 2 cells, whereas the ectopic endothelial cell state emerged from capillary cell plasticity. Cell-cell communication routes in patients were largely conserved in hPCLS, and antifibrotic drug treatments showed highly cell type-specific effects. Our work provides an experimental framework for perturbational single-cell genomics directly in human lung tissue that enables analysis of tissue homeostasis, regeneration, and pathology. We further demonstrate that hPCLS offer an avenue for scalable, high-resolution drug testing to accelerate antifibrotic drug development and translation.
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Affiliation(s)
- Niklas J Lang
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Janine Gote-Schniering
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
- Department of Rheumatology and Immunology, Department of Pulmonary Medicine, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland
- Lung Precision Medicine Program, Department for BioMedical Research, University of Bern, 3008 Bern, Switzerland
| | - Diana Porras-Gonzalez
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Lin Yang
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Laurens J De Sadeleer
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department CHROMETA, KU Leuven, 3000 Leuven, Belgium
| | - R Christoph Jentzsch
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Vladimir A Shitov
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
- Institute of Computational Biology, Helmholtz Munich, Member of the German Center for Lung Research (DZL), 85764 Munich, Germany
| | - Shuhong Zhou
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Meshal Ansari
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
- Institute of Computational Biology, Helmholtz Munich, Member of the German Center for Lung Research (DZL), 85764 Munich, Germany
| | - Ahmed Agami
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Christoph H Mayr
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Baharak Hooshiar Kashani
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Yuexin Chen
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Lukas Heumos
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
- Institute of Computational Biology, Helmholtz Munich, Member of the German Center for Lung Research (DZL), 85764 Munich, Germany
| | - Jeanine C Pestoni
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Eszter Sarolta Molnar
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | | | | | | | - Melanie Wögrath
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Michael Gerckens
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
- Department of Medicine V, LMU University Hospital, LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Mareike Lehmann
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
- Institute for Lung Research, Philipps-University Marburg, Universities of Giessen and Marburg Lung Center, Member of the German Center for Lung Research (DZL), 35043 Marburg, Germany
| | - Ali Önder Yildirim
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
- Institute of Experimental Pneumology, LMU University Hospital, Ludwig-Maximilians University, 81377 Munich, Germany
| | - Rudolf Hatz
- Center for Thoracic Surgery Munich, Ludwig-Maximilians-University of Munich (LMU) and Asklepios Medical Center, Munich-Gauting, 82131 Gauting, Germany
| | - Nikolaus Kneidinger
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
- Department of Medicine V, LMU University Hospital, LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Jürgen Behr
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
- Department of Medicine V, LMU University Hospital, LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Wim A Wuyts
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department CHROMETA, KU Leuven, 3000 Leuven, Belgium
| | - Mircea-Gabriel Stoleriu
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
- Center for Thoracic Surgery Munich, Ludwig-Maximilians-University of Munich (LMU) and Asklepios Medical Center, Munich-Gauting, 82131 Gauting, Germany
| | - Malte D Luecken
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
- Institute of Computational Biology, Helmholtz Munich, Member of the German Center for Lung Research (DZL), 85764 Munich, Germany
| | - Fabian J Theis
- Institute of Computational Biology, Helmholtz Munich, Member of the German Center for Lung Research (DZL), 85764 Munich, Germany
- Department of Mathematics, Technische Universität München, 85748 Garching bei München, Germany
| | - Gerald Burgstaller
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Herbert B Schiller
- Comprehensive Pneumology Center (CPC) with the CPC-M bioArchive/Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
- Institute of Experimental Pneumology, LMU University Hospital, Ludwig-Maximilians University, 81377 Munich, Germany
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Günes Günsel G, Conlon TM, Jeridi A, Kim R, Ertüz Z, Lang NJ, Ansari M, Novikova M, Jiang D, Strunz M, Gaianova M, Hollauer C, Gabriel C, Angelidis I, Doll S, Pestoni JC, Edelmann SL, Kohlhepp MS, Guillot A, Bassler K, Van Eeckhoutte HP, Kayalar Ö, Konyalilar N, Kanashova T, Rodius S, Ballester-López C, Genes Robles CM, Smirnova N, Rehberg M, Agarwal C, Krikki I, Piavaux B, Verleden SE, Vanaudenaerde B, Königshoff M, Dittmar G, Bracke KR, Schultze JL, Watz H, Eickelberg O, Stoeger T, Burgstaller G, Tacke F, Heissmeyer V, Rinkevich Y, Bayram H, Schiller HB, Conrad M, Schneider R, Yildirim AÖ. The arginine methyltransferase PRMT7 promotes extravasation of monocytes resulting in tissue injury in COPD. Nat Commun 2022; 13:1303. [PMID: 35288557 PMCID: PMC8921220 DOI: 10.1038/s41467-022-28809-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 02/01/2022] [Indexed: 12/13/2022] Open
Abstract
Extravasation of monocytes into tissue and to the site of injury is a fundamental immunological process, which requires rapid responses via post translational modifications (PTM) of proteins. Protein arginine methyltransferase 7 (PRMT7) is an epigenetic factor that has the capacity to mono-methylate histones on arginine residues. Here we show that in chronic obstructive pulmonary disease (COPD) patients, PRMT7 expression is elevated in the lung tissue and localized to the macrophages. In mouse models of COPD, lung fibrosis and skin injury, reduced expression of PRMT7 associates with decreased recruitment of monocytes to the site of injury and hence less severe symptoms. Mechanistically, activation of NF-κB/RelA in monocytes induces PRMT7 transcription and consequential mono-methylation of histones at the regulatory elements of RAP1A, which leads to increased transcription of this gene that is responsible for adhesion and migration of monocytes. Persistent monocyte-derived macrophage accumulation leads to ALOX5 over-expression and accumulation of its metabolite LTB4, which triggers expression of ACSL4 a ferroptosis promoting gene in lung epithelial cells. Conclusively, inhibition of arginine mono-methylation might offer targeted intervention in monocyte-driven inflammatory conditions that lead to extensive tissue damage if left untreated. Chronic obstructive pulmonary disease is a progressive and incurable chronic condition that involves accumulation of inflammatory macrophages in the lung tissue. Authors here show in mouse models of lung disease that PRMT7, a protein arginine methyltransferase, is an important regulator of recruitment and the pro-inflammatory phenotype of macrophages.
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4
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Schröder A, Lunding LP, Zissler UM, Vock C, Webering S, Ehlers JC, Orinska Z, Chaker A, Schmidt‐Weber CB, Lang NJ, Schiller HB, Mall MA, Fehrenbach H, Dinarello CA, Wegmann M. IL-37 regulates allergic inflammation by counterbalancing pro-inflammatory IL-1 and IL-33. Allergy 2022; 77:856-869. [PMID: 34460953 DOI: 10.1111/all.15072] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 08/08/2021] [Indexed: 01/22/2023]
Abstract
BACKGROUND Children with asthma have impaired production of interleukin (IL) 37; in mice, IL-37 reduces hallmarks of experimental allergic asthma (EAA). However, it remains unclear how IL-37 exerts its inhibitory properties in asthma. This study aimed to identify the mechanism(s) by which IL-37 controls allergic inflammation. METHODS IL-37 target cells were identified by single-cell RNA-seq of IL-1R5 and IL-1R8. Airway tissues were isolated by laser-capture microdissection and examined by microarray-based gene expression analysis. Mononuclear cells (MNC) and airway epithelial cells (AECs) were isolated and stimulated with allergen, IL-1β, or IL-33 together with recombinant human (rh) IL-37. Wild-type, IL-1R1- and IL-33-deficient mice with EAA were treated with rhIL-37. IL-1β, IL-33, and IL-37 levels were determined in sputum and nasal secretions from adult asthma patients without glucocorticoid therapy. RESULTS IL-37 target cells included AECs, T cells, and dendritic cells. In mice with EAA, rhIL-37 led to differential expression of >90 genes induced by IL-1β and IL-33. rhIL-37 reduced production of Th2 cytokines in allergen-activated MNCs from wild-type but not from IL-1R1-deficient mice and inhibited IL-33-induced Th2 cytokine release. Furthermore, rhIL-37 attenuated IL-1β- and IL-33-induced pro-inflammatory mediator expression in murine AEC cultures. In contrast to wild-type mice, hIL-37 had no effect on EAA in IL-1R1- or IL-33-deficient mice. We also observed that expression/production ratios of both IL-1β and IL-33 to IL-37 were dramatically increased in asthma patients compared to healthy controls. CONCLUSION IL-37 downregulates allergic airway inflammation by counterbalancing the disease-amplifying effects of IL-1β and IL-33.
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Affiliation(s)
- Alexandra Schröder
- Division of Asthma Exacerbation &‐Regulation, Priority Area Asthma & Allergy Research Center Borstel‐Leibniz Lung Center Borstel Germany
- Airway Research Center North Member of the German Center for Lung Research (DZL) Munich Germany
| | - Lars P. Lunding
- Division of Asthma Exacerbation &‐Regulation, Priority Area Asthma & Allergy Research Center Borstel‐Leibniz Lung Center Borstel Germany
- Airway Research Center North Member of the German Center for Lung Research (DZL) Munich Germany
| | - Ulrich M. Zissler
- Center of Allergy and Environment (ZAUM) Technische Universität and Helmholtz Center Munich Member of the German Center for Lung Research (DZL) Munich Germany
- Comprehensive Pneumology Center Munich (CPC‐M) Member of the German Center for Lung Research (DZL) Munich Germany
| | - Christina Vock
- Airway Research Center North Member of the German Center for Lung Research (DZL) Munich Germany
- Division of Experimental Pneumology Priority Area Asthma & Allergy Research Center Borstel‐ Leibniz Lung Center Borstel Germany
| | - Sina Webering
- Division of Asthma Exacerbation &‐Regulation, Priority Area Asthma & Allergy Research Center Borstel‐Leibniz Lung Center Borstel Germany
- Airway Research Center North Member of the German Center for Lung Research (DZL) Munich Germany
| | - Johanna C. Ehlers
- Airway Research Center North Member of the German Center for Lung Research (DZL) Munich Germany
- Division of Experimental Pneumology Priority Area Asthma & Allergy Research Center Borstel‐ Leibniz Lung Center Borstel Germany
| | - Zane Orinska
- Airway Research Center North Member of the German Center for Lung Research (DZL) Munich Germany
- Division of Experimental Pneumology Priority Area Asthma & Allergy Research Center Borstel‐ Leibniz Lung Center Borstel Germany
| | - Adam Chaker
- Center of Allergy and Environment (ZAUM) Technische Universität and Helmholtz Center Munich Member of the German Center for Lung Research (DZL) Munich Germany
- Department of Otorhinolaryngology and Head and Neck Surgery Medical School Technical, University of Munich Munich Germany
| | - Carsten B. Schmidt‐Weber
- Center of Allergy and Environment (ZAUM) Technische Universität and Helmholtz Center Munich Member of the German Center for Lung Research (DZL) Munich Germany
- Comprehensive Pneumology Center Munich (CPC‐M) Member of the German Center for Lung Research (DZL) Munich Germany
| | - Niklas J. Lang
- Comprehensive Pneumology Center Munich (CPC‐M) Member of the German Center for Lung Research (DZL) Munich Germany
- Institute of Lung Biology and Disease Helmholtz Zentrum München Munich Germany
| | - Herbert B. Schiller
- Comprehensive Pneumology Center Munich (CPC‐M) Member of the German Center for Lung Research (DZL) Munich Germany
- Institute of Lung Biology and Disease Helmholtz Zentrum München Munich Germany
| | - Marcus A. Mall
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine Charité ‐ Universitätsmedizin Berlin Berlin Germany
- Berlin Institute of Health (BIH) Berlin Germany
- German Center for Lung Research (DZL), associated partner site Berlin Germany
| | - Heinz Fehrenbach
- Airway Research Center North Member of the German Center for Lung Research (DZL) Munich Germany
- Division of Experimental Pneumology Priority Area Asthma & Allergy Research Center Borstel‐ Leibniz Lung Center Borstel Germany
| | - Charles A. Dinarello
- Department of Medicine University of Colorado Denver Denver CO USA
- Department of Medicine Radboud University Medical Center Nijmegen The Netherlands
| | - Michael Wegmann
- Division of Asthma Exacerbation &‐Regulation, Priority Area Asthma & Allergy Research Center Borstel‐Leibniz Lung Center Borstel Germany
- Airway Research Center North Member of the German Center for Lung Research (DZL) Munich Germany
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Fischer DS, Ansari M, Wagner KI, Jarosch S, Huang Y, Mayr CH, Strunz M, Lang NJ, D’Ippolito E, Hammel M, Mateyka L, Weber S, Wolff LS, Witter K, Fernandez IE, Leuschner G, Milger K, Frankenberger M, Nowak L, Heinig-Menhard K, Koch I, Stoleriu MG, Hilgendorff A, Behr J, Pichlmair A, Schubert B, Theis FJ, Busch DH, Schiller HB, Schober K. Single-cell RNA sequencing reveals ex vivo signatures of SARS-CoV-2-reactive T cells through 'reverse phenotyping'. Nat Commun 2021; 12:4515. [PMID: 34312385 PMCID: PMC8313584 DOI: 10.1038/s41467-021-24730-4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 06/16/2021] [Indexed: 02/07/2023] Open
Abstract
The in vivo phenotypic profile of T cells reactive to severe acute respiratory syndrome (SARS)-CoV-2 antigens remains poorly understood. Conventional methods to detect antigen-reactive T cells require in vitro antigenic re-stimulation or highly individualized peptide-human leukocyte antigen (pHLA) multimers. Here, we use single-cell RNA sequencing to identify and profile SARS-CoV-2-reactive T cells from Coronavirus Disease 2019 (COVID-19) patients. To do so, we induce transcriptional shifts by antigenic stimulation in vitro and take advantage of natural T cell receptor (TCR) sequences of clonally expanded T cells as barcodes for 'reverse phenotyping'. This allows identification of SARS-CoV-2-reactive TCRs and reveals phenotypic effects introduced by antigen-specific stimulation. We characterize transcriptional signatures of currently and previously activated SARS-CoV-2-reactive T cells, and show correspondence with phenotypes of T cells from the respiratory tract of patients with severe disease in the presence or absence of virus in independent cohorts. Reverse phenotyping is a powerful tool to provide an integrated insight into cellular states of SARS-CoV-2-reactive T cells across tissues and activation states.
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Affiliation(s)
- David S. Fischer
- grid.4567.00000 0004 0483 2525Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, München, Germany ,grid.6936.a0000000123222966TUM School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Meshal Ansari
- grid.4567.00000 0004 0483 2525Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, München, Germany ,grid.4567.00000 0004 0483 2525Institute of Lung Biology and Disease and Comprehensive Pneumology Center with the CPC-M bioArchive, Helmholtz Zentrum Muenchen, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Karolin I. Wagner
- grid.6936.a0000000123222966Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Sebastian Jarosch
- grid.6936.a0000000123222966Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Yiqi Huang
- grid.6936.a0000000123222966Institute of Virology, Technische Universität München (TUM), Munich, Germany
| | - Christoph H. Mayr
- grid.4567.00000 0004 0483 2525Institute of Lung Biology and Disease and Comprehensive Pneumology Center with the CPC-M bioArchive, Helmholtz Zentrum Muenchen, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Maximilian Strunz
- grid.4567.00000 0004 0483 2525Institute of Lung Biology and Disease and Comprehensive Pneumology Center with the CPC-M bioArchive, Helmholtz Zentrum Muenchen, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Niklas J. Lang
- grid.4567.00000 0004 0483 2525Institute of Lung Biology and Disease and Comprehensive Pneumology Center with the CPC-M bioArchive, Helmholtz Zentrum Muenchen, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Elvira D’Ippolito
- grid.6936.a0000000123222966Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Monika Hammel
- grid.6936.a0000000123222966Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Laura Mateyka
- grid.6936.a0000000123222966Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Simone Weber
- grid.6936.a0000000123222966Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Lisa S. Wolff
- grid.6936.a0000000123222966Institute of Virology, Technische Universität München (TUM), Munich, Germany
| | - Klaus Witter
- grid.5252.00000 0004 1936 973XLaboratory of Immunogenetics and Molecular Diagnostics, Department of Transfusion Medicine, Cell Therapeutic Agents and Hemostaseology, LMU Munich, Munich, Germany ,grid.5252.00000 0004 1936 973XDepartment of Medicine V, University Hospital, LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for lung research (DZL), Munich, Germany
| | - Isis E. Fernandez
- grid.5252.00000 0004 1936 973XDepartment of Medicine V, University Hospital, LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for lung research (DZL), Munich, Germany
| | - Gabriela Leuschner
- grid.5252.00000 0004 1936 973XDepartment of Medicine V, University Hospital, LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for lung research (DZL), Munich, Germany
| | - Katrin Milger
- grid.5252.00000 0004 1936 973XDepartment of Medicine V, University Hospital, LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for lung research (DZL), Munich, Germany
| | - Marion Frankenberger
- grid.4567.00000 0004 0483 2525Institute of Lung Biology and Disease and Comprehensive Pneumology Center with the CPC-M bioArchive, Helmholtz Zentrum Muenchen, Member of the German Center for Lung Research (DZL), Munich, Germany ,grid.5252.00000 0004 1936 973XCenter for Thoracic Surgery Munich, Ludwig-Maximilians-University of Munich (LMU) and Asklepios Lung Clinic Munich-Gauting, Munich and Gauting, Munich, Germany
| | - Lorenz Nowak
- grid.5252.00000 0004 1936 973XCenter for Thoracic Surgery Munich, Ludwig-Maximilians-University of Munich (LMU) and Asklepios Lung Clinic Munich-Gauting, Munich and Gauting, Munich, Germany
| | - Katharina Heinig-Menhard
- grid.5252.00000 0004 1936 973XCenter for Thoracic Surgery Munich, Ludwig-Maximilians-University of Munich (LMU) and Asklepios Lung Clinic Munich-Gauting, Munich and Gauting, Munich, Germany
| | - Ina Koch
- grid.4567.00000 0004 0483 2525Institute of Lung Biology and Disease and Comprehensive Pneumology Center with the CPC-M bioArchive, Helmholtz Zentrum Muenchen, Member of the German Center for Lung Research (DZL), Munich, Germany ,Asklepios Biobank for pulmonary diseases, Gauting, Germany ,grid.452624.3Member of the German Center for Lung Research (DZL), Center for Comprehensive Developmental Care (CDeCLMU), Department of Neonatology, Perinatal Center, Munich, Germany
| | - Mircea G. Stoleriu
- grid.4567.00000 0004 0483 2525Institute of Lung Biology and Disease and Comprehensive Pneumology Center with the CPC-M bioArchive, Helmholtz Zentrum Muenchen, Member of the German Center for Lung Research (DZL), Munich, Germany ,Asklepios Biobank for pulmonary diseases, Gauting, Germany ,grid.452624.3Member of the German Center for Lung Research (DZL), Center for Comprehensive Developmental Care (CDeCLMU), Department of Neonatology, Perinatal Center, Munich, Germany
| | - Anne Hilgendorff
- grid.4567.00000 0004 0483 2525Institute of Lung Biology and Disease and Comprehensive Pneumology Center with the CPC-M bioArchive, Helmholtz Zentrum Muenchen, Member of the German Center for Lung Research (DZL), Munich, Germany ,grid.452463.2German Center for Infection Research (DZIF), partner site Munich, Munich, Germany
| | - Jürgen Behr
- grid.5252.00000 0004 1936 973XDepartment of Medicine V, University Hospital, LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for lung research (DZL), Munich, Germany ,grid.5252.00000 0004 1936 973XCenter for Thoracic Surgery Munich, Ludwig-Maximilians-University of Munich (LMU) and Asklepios Lung Clinic Munich-Gauting, Munich and Gauting, Munich, Germany
| | - Andreas Pichlmair
- grid.6936.a0000000123222966Institute of Virology, Technische Universität München (TUM), Munich, Germany ,grid.6936.a0000000123222966Department of Mathematics, Technical University of Munich, Garching, Germany
| | - Benjamin Schubert
- grid.4567.00000 0004 0483 2525Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, München, Germany ,grid.6936.a0000000123222966Focus Group ‘Clinical Cell Processing and Purification”, Institute for Advanced Study, TUM, Munich, Germany
| | - Fabian J. Theis
- grid.4567.00000 0004 0483 2525Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, München, Germany ,grid.6936.a0000000123222966Focus Group ‘Clinical Cell Processing and Purification”, Institute for Advanced Study, TUM, Munich, Germany
| | - Dirk H. Busch
- grid.6936.a0000000123222966Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany ,grid.6936.a0000000123222966Department of Mathematics, Technical University of Munich, Garching, Germany ,grid.5252.00000 0004 1936 973XGrosshadern, Hospital of the Ludwig-Maximilians University (LMU), Munich, Germany
| | - Herbert B. Schiller
- grid.4567.00000 0004 0483 2525Institute of Lung Biology and Disease and Comprehensive Pneumology Center with the CPC-M bioArchive, Helmholtz Zentrum Muenchen, Member of the German Center for Lung Research (DZL), Munich, Germany ,grid.4567.00000 0004 0483 2525Present Address: Institute of Lung Biology and Disease, Comprehensive Pneumology Center, Helmholtz Zentrum München, Neuherberg, München, Germany
| | - Kilian Schober
- grid.6936.a0000000123222966Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany ,grid.411668.c0000 0000 9935 6525Present Address: Microbiological Institute—Institute of Clinical Microbiology, Immunology and Hygiene, University Hospital of Erlangen, Erlangen, Germany
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Lang NJ, Krupp JM, Koller AL. Morphological and ultrastructural changes in vegetative cells and heterocysts of Anabaena variabilis grown with fructose. J Bacteriol 1987; 169:920-3. [PMID: 3100507 PMCID: PMC211872 DOI: 10.1128/jb.169.2.920-923.1987] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
The morphology and ultrastructure of Anabaena variabilis grown in medium with and without 40 mM fructose were compared. Vegetative cells and young heterocysts in fructose-supplemented medium were significantly larger, were filled with glycogen granules, and had fewer thylakoids. Developing heterocysts contained large numbers of glycogen granules well into mature stages, and envelope formation was precocious. As heterocysts enlarged in fructose medium, their shape became more broadly oblong compared with the more rectangular heterocysts in fructose-free medium.
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Kulasooriya SA, Lang NJ, Fay P. The heterocysts of blue-green algae. 3. Differentiation and nitrogenase activity. Proc R Soc Lond B Biol Sci 1972; 181:199-209. [PMID: 4403286 DOI: 10.1098/rspb.1972.0046] [Citation(s) in RCA: 69] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The course of heterocyst development in
Anabacna cylindrica
was studied in relation to the ability to fix nitrogen. When non-differentiated filaments, grown in the presence of ammonium-N, were transferred into a medium free from combined nitrogen and incubated under photosynthetic conditions, the cellular C:N ratio increased from 4.5:1 to 8:1 before the percentage heterocyst frequency and nitrogenase activity reached a steady value. The initial stages of differentiation were observed 24 h after transfer into nitrogen-free medium, but nitrogenase activity was only detected when the formation of the first heterocysts was completed. The transformation of a vegetative cell into a heterocyst is characterized by the dissolution of storage granules, the deposition of a multilayered envelope, the breakdown of photosynthetic thylakoids and the formation of new membraneous structures. The latter appear to develop by the coalescence of small newly formed vesicles arising in regions of pre-existing thylakoids. The course of heterocyst development was paralleled by that of nitrogenase activity both under aerobic and anaerobic conditions. Anaerobic incubation enhanced heterocyst production as well as nitrogenase activity. The results suggest that nitrogenase synthesis in
Anabaena cylindrica
is associated with heterocyst formation and that the primary factor which may regulate both processes is the cellular C:N balance of the alga.
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Abstract
The ketonic carotenoid astaxanthin accumulates in perinuclear cytoplasm characterized by a network of ribosome-coated endoplnsmic reticulum segments, free ribosomes, dictyosomes in active stages of vesicle formation, and mitochondria. The pigment granules form in the ground substance and not within any organelle or vesicle. Coalescence of the globular granules results from increasing quantities of astaxanthin formed as the cells age. The gross differences in fixation image following glzitaraldehyde-KMnO4 and glutaraldehyde-Os O4 are illustrated, and the need for n variety of fixations upon which interpretations are bused is emphasized. The bright red coloration of akinetes is due to a masking of the chlorophyll by the massive astaxnnthin deposits rather than m y break-down of the chloroplast thylakoids.
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Affiliation(s)
- N J Lang
- Department of Botany, University of California, Davis, California 95616
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