Clonal expansion and activation of tissue-resident memory-like Th17 cells expressing GM-CSF in the lungs of severe COVID-19 patients.

Yu Zhao, Christoph Kilian, Jan-Eric Turner, Lidia Bosurgi, Kevin Roedl, Patricia Bartsch, Ann-Christin Gnirck, Filippo Cortesi, Christoph Schultheiß, Malte Hellmig, Leon U B Enk, Fabian Hausmann, Alina Borchers, Milagros N Wong, Hans-Joachim Paust, Francesco Siracusa, Nicola Scheibel, Marissa Herrmann, Elisa Rosati, Petra Bacher, Dominik Kylies, Dominik Jarczak, Marc Lütgehetmann, Susanne Pfefferle, Stefan Steurer, Julian Schulze Zur-Wiesch, Victor G Puelles, Jan-Peter Sperhake, Marylyn M Addo, Ansgar W Lohse, Mascha Binder, Samuel Huber, Tobias B Huber, Stefan Kluge, Stefan Bonn, Ulf Panzer, Nicola Gagliani, Christian F Krebs
Author Information
  1. Yu Zhao: III. Department of Medicine, Division of Translational Immunology, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  2. Christoph Kilian: III. Department of Medicine, Division of Translational Immunology, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  3. Jan-Eric Turner: Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, Germany.
  4. Lidia Bosurgi: I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Germany.
  5. Kevin Roedl: Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  6. Patricia Bartsch: III. Department of Medicine, Division of Translational Immunology, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  7. Ann-Christin Gnirck: Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, Germany.
  8. Filippo Cortesi: I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  9. Christoph Schultheiß: Department of Internal Medicine IV, Oncology/Hematology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany. ORCID
  10. Malte Hellmig: III. Department of Medicine, Division of Translational Immunology, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  11. Leon U B Enk: III. Department of Medicine, Division of Translational Immunology, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  12. Fabian Hausmann: Institute of Medical Systems Biology, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  13. Alina Borchers: III. Department of Medicine, Division of Translational Immunology, University Medical Center Hamburg-Eppendorf, Germany.
  14. Milagros N Wong: III. Department of Medicine, University Medical Center Hamburg-Eppendorf, Germany.
  15. Hans-Joachim Paust: III. Department of Medicine, Division of Translational Immunology, University Medical Center Hamburg-Eppendorf, Germany.
  16. Francesco Siracusa: I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Germany.
  17. Nicola Scheibel: I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  18. Marissa Herrmann: I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  19. Elisa Rosati: Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany.
  20. Petra Bacher: Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany.
  21. Dominik Kylies: Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, Germany.
  22. Dominik Jarczak: Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  23. Marc Lütgehetmann: Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  24. Susanne Pfefferle: Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  25. Stefan Steurer: Institute for Pathology, University Medical Center Hamburg-Eppendorf, Germany.
  26. Julian Schulze Zur-Wiesch: I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  27. Victor G Puelles: III. Department of Medicine, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  28. Jan-Peter Sperhake: Department of Legal Medicine, University Medical Center Hamburg-Eppendorf, Germany.
  29. Marylyn M Addo: I. Department of Medicine, Division of Infectious Diseases, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  30. Ansgar W Lohse: I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Germany.
  31. Mascha Binder: Department of Internal Medicine IV, Oncology/Hematology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany.
  32. Samuel Huber: Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, Germany. ORCID
  33. Tobias B Huber: Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, Germany. ORCID
  34. Stefan Kluge: Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Germany.
  35. Stefan Bonn: Institute of Medical Systems Biology, University Medical Center Hamburg-Eppendorf, Germany. ORCID
  36. Ulf Panzer: III. Department of Medicine, Division of Translational Immunology, University Medical Center Hamburg-Eppendorf, Germany.
  37. Nicola Gagliani: Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, Germany. n.gagliani@uke.de c.krebs@uke.de. ORCID
  38. Christian F Krebs: III. Department of Medicine, Division of Translational Immunology, University Medical Center Hamburg-Eppendorf, Germany. n.gagliani@uke.de c.krebs@uke.de. ORCID

Abstract

Hyperinflammation contributes to lung injury and subsequent acute respiratory distress syndrome (ARDS) with high mortality in patients with severe coronavirus disease 2019 (COVID-19). To understand the underlying mechanisms involved in lung pathology, we investigated the role of the lung-specific immune response. We profiled immune cells in bronchoalveolar lavage fluid and blood collected from COVID-19 patients with severe disease and bacterial pneumonia patients not associated with viral infection. By tracking T cell clones across tissues, we identified clonally expanded tissue-resident memory-like Th17 cells (Trm17 cells) in the lungs even after viral clearance. These Trm17 cells were characterized by a a potentially pathogenic cytokine expression profile of and (GM-CSF). Interactome analysis suggests that Trm17 cells can interact with lung macrophages and cytotoxic CD8 T cells, which have been associated with disease severity and lung damage. High IL-17A and GM-CSF protein levels in the serum of COVID-19 patients were associated with a more severe clinical course. Collectively, our study suggests that pulmonary Trm17 cells are one potential orchestrator of the hyperinflammation in severe COVID-19.

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MeSH Term

Bronchoalveolar Lavage Fluid
COVID-19
Clone Cells
Granulocyte-Macrophage Colony-Stimulating Factor
Humans
Immunologic Memory
Inflammation
Lung
Myeloid Cells
Pneumonia, Bacterial
Th17 Cells

Chemicals

Granulocyte-Macrophage Colony-Stimulating Factor

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