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Preexisting comorbidities shape the immune response associated with severe COVID-19
Stefanie Kreutmair1, Manuel Kauffmann2, Susanne Unger2
1Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland; German Cancer Consortium and German Cancer Research Center, Heidelberg, Partner Site Freiburg, Freiburg, Germany.
The Journal of Allergy and Clinical Immunology
|June 18, 2022
Summary
Comorbidities like chronic kidney disease significantly alter immune responses in patients with coronavirus disease 2019 (COVID-19), increasing severe outcomes. Understanding these immune signatures is key to managing COVID-19 risk.
Area of Science:
- Immunology
- Infectious Diseases
- Genomics
Background:
- Comorbidities are known risk factors for severe coronavirus disease 2019 (COVID-19).
- The impact of underlying conditions on the immune response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is not fully understood.
Purpose of the Study:
- To investigate the intricate relationships between comorbidities, immune response, and patient outcomes in COVID-19.
- To identify specific immune signatures associated with various comorbidities and their influence on disease severity.
Main Methods:
- Utilized high-throughput, high-dimensional single-cell mapping of peripheral blood leukocytes.
- Employed algorithm-guided analysis to interpret complex immune data.
Main Results:
- Discovered distinct immune signatures linked to both severe COVID-19 and specific comorbidities.
- Metabolic syndrome factors (obesity, hypertension, diabetes) additively increased immune dysregulation.
- Chronic kidney disease patients exhibited the most altered immune signatures, correlating with a significantly higher risk (OR 16.3) of severe COVID-19.
Conclusions:
- Systematic analysis revealed mechanistic immunologic underpinnings of comorbidity-driven risk in COVID-19.
- Identified specific comorbidity-driven immune signatures that predict patient outcomes.
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