A blood atlas of COVID-19 defines hallmarks of disease severity and specificity

COvid-19 Multi-omics Blood ATlas (COMBAT) Consortium

Abstract

Treatment of severe COVID-19 is currently limited by clinical heterogeneity and incomplete description of specific immune biomarkers. We present here a comprehensive multi-omic blood atlas for patients with varying COVID-19 severity in an integrated comparison with influenza and sepsis patients versus healthy volunteers. We identify immune signatures and correlates of host response. Hallmarks of disease severity involved cells, their inflammatory mediators and networks, including progenitor cells and specific myeloid and lymphocyte subsets, features of the immune repertoire, acute phase response, metabolism, and coagulation. Persisting immune activation involving AP-1/p38MAPK was a specific feature of COVID-19. The plasma proteome enabled sub-phenotyping into patient clusters, predictive of severity and outcome. Systems-based integrative analyses including tensor and matrix decomposition of all modalities revealed feature groupings linked with severity and specificity compared to influenza and sepsis. Our approach and blood atlas will support future drug development, clinical trial design, and personalized medicine approaches for COVID-19.

Datasets

1. COMBAT project: single cell gene expression data from COVID-19, sepsis and flu patient PBMCs
Metadata
Source
GEX_region
minor_subset
major_subset
cell_type_source
assay_ontology_term_id
self_reported_ethnicity_ontology_term_id
disease_ontology_term_id
tissue_ontology_term_id
cell_type_ontology_term_id
cell_type_original
development_stage_ontology_term_id
sex_ontology_term_id
organism_ontology_term_id
suspension_type
tissue_type
cell_type
assay
disease
organism
sex
tissue
self_reported_ethnicity
development_stage
COVID_SEV247799 cells
Sepsis164128 cells
COVID_MILD114418 cells
COVID_CRIT93982 cells
HV92205 cells
COVID_HCW_MILD88898 cells
Flu19233 cells
COVID_LDN15485 cells
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A blood atlas of COVID-19 defines hallmarks of disease severity and specificity

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Source data

https://cellxgene.cziscience.com/collections/8f126edf-5405-4731-8374-b5ce11f53e82

Alias names

EGAS00001005493, PMID35216673, PMC8776501

Cite this study

Ahern, D.J., Ai, Z., Ainsworth, M., Allan, C., Allcock, A., Angus, B., Ansari, M.A., Arancibia-Cárcamo, C.V., Aschenbrenner, D., Attar, M. and Baillie, J.K., 2022. A blood atlas of COVID-19 defines hallmarks of disease severity and specificity. Cell, 185(5), pp.916-938. https://doi.org/10.1016/j.cell.2022.01.012