Dr. Anna Aschenbrenner
Institute of Systems Medicine, DZNE and LIMES Institute
a.aschenbrenner@uni-bonn.de View member: Dr. Anna AschenbrennerPublication categories: Top publication
Immunity
Temporal resolution of cellular features associated with a severe COVID-19 disease trajectory is needed for understanding skewed immune responses and defining predictors of outcome. Here, we performed a longitudinal multi-omics study using a two-center cohort of 14 patients. We analyzed the bulk transcriptome, bulk DNA methylome, and single-cell transcriptome (>358,000 cells, including BCR profiles) of peripheral blood samples harvested from up to 5 time points. Validation was performed in two independent cohorts of COVID-19 patients. Severe COVID-19 was characterized by an increase of proliferating, metabolically hyperactive plasmablasts. Coinciding with critical illness, we also identified an expansion of interferon-activated circulating megakaryocytes and increased erythropoiesis with features of hypoxic signaling. Megakaryocyte- and erythroid-cell-derived co-expression modules were predictive of fatal disease outcome. The study demonstrates broad cellular effects of SARS-CoV-2 infection beyond adaptive immune cells and provides an entry point toward developing biomarkers and targeted treatments of patients with COVID-19.
Copyright © 2020 Elsevier Inc. All rights reserved.
PMID: 33296687
Institute of Systems Medicine, DZNE and LIMES Institute
a.aschenbrenner@uni-bonn.de View member: Dr. Anna AschenbrennerInstitute of Genomic Mathematics
View member: Prof. Christoph LangeMedical Clinic I
jacob.nattermann@ukbonn.de View member: Prof. Dr. med. Jacob NattermannLife & Medical Sciences Institute (LIMES)
t.ulas@uni-bonn.de View member: Dr. Thomas UlasLife & Medical Sciences Institute (LIMES)
j.schultze@uni-bonn.de View member: Prof. Dr. med. Joachim L. Schultze