Clonal expansion and activation of tissue-resident memory-like T <sub>H</sub> 17 cells expressing GM-CSF in the lungs of patients with severe COVID-19
Yu Zhao, Christoph Kilian, Jan‐Eric Turner, Lidia Bosurgi, Kevin Roedl, Patricia Bartsch, Ann-Christin Gnirck, Filippo Cortesi, Christoph Schultheiß, Malte Hellmig, Leon Enk, Fabian Hausmann, Alina Borchers, Milagros N. Wong, Hans‐Joachim Paust, Francesco Siracusa, Nicola Scheibel, Marissa Herrmann, Elisa Rosati, Petra Bächer, 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
Abstract
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.