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Tracheal aspirate RNA sequencing identifies distinct immunological features of COVID-19 ARDS

  • COMET Consortium
  • University of California at San Francisco
  • Chan Zuckerberg Biohub
  • Washington University St. Louis
  • Stanford University
  • University of Toronto
  • San Francisco Department of Public Health
  • Genentech Inc.
  • Parker Institute for Cancer Immunotherapy

科研成果: 期刊稿件 › 文章 › 同行评审

55 引用 (Scopus)

摘要

The immunological features that distinguish COVID-19-associated acute respiratory distress syndrome (ARDS) from other causes of ARDS are incompletely understood. Here, we report the results of comparative lower respiratory tract transcriptional profiling of tracheal aspirate from 52 critically ill patients with ARDS from COVID-19 or from other etiologies, as well as controls without ARDS. In contrast to a “cytokine storm,” we observe reduced proinflammatory gene expression in COVID-19 ARDS when compared to ARDS due to other causes. COVID-19 ARDS is characterized by a dysregulated host response with increased PTEN signaling and elevated expression of genes with non-canonical roles in inflammation and immunity. In silico analysis of gene expression identifies several candidate drugs that may modulate gene expression in COVID-19 ARDS, including dexamethasone and granulocyte colony stimulating factor. Compared to ARDS due to other types of viral pneumonia, COVID-19 is characterized by impaired interferon-stimulated gene (ISG) expression. The relationship between SARS-CoV-2 viral load and expression of ISGs is decoupled in patients with COVID-19 ARDS when compared to patients with mild COVID-19. In summary, assessment of host gene expression in the lower airways of patients reveals distinct immunological features of COVID-19 ARDS.

源语言英语
期刊论文编号5152
期刊Nature Communications
卷12
期1
DOI
出版状态已出版 - 1 12月 2021
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