Dysregulation of Pulmonary Responses in Severe COVID-19

Patients with coronavirus disease 2019 (COVID-19) predominantly have a respiratory tract infection with various symptoms and high mortality is associated with respiratory failure second to severe disease. The risk factors leading to severe disease remain unclear. Here, we reanalyzed a published sing...

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Main Authors: Dandan Wu, Xuexian O. Yang
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/13/6/957
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author Dandan Wu
Xuexian O. Yang
author_facet Dandan Wu
Xuexian O. Yang
author_sort Dandan Wu
collection DOAJ
description Patients with coronavirus disease 2019 (COVID-19) predominantly have a respiratory tract infection with various symptoms and high mortality is associated with respiratory failure second to severe disease. The risk factors leading to severe disease remain unclear. Here, we reanalyzed a published single-cell RNA-Seq (scRNA-Seq) dataset and found that bronchoalveolar lavage fluid (BALF) of patients with severe disease compared to those with mild disease contained decreased TH17-type cells, decreased IFNA1-expressing cells with lower expression of toll-like receptor 7 (TLR7) and TLR8, increased IgA-expressing B cells, and increased hyperactive epithelial cells (and/or macrophages) expressing matrix metalloproteinases (MMPs), hyaluronan synthase 2 (HAS2), and plasminogen activator inhibitor-1 (PAI-1), which may together contribute to the pulmonary pathology in severe COVID-19. We propose IFN-I (and TLR7/TLR8) and PAI-1 as potential biomarkers to predict the susceptibility to severe COVID-19.
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spelling doaj.art-ea8a5dabb8284e50be3989592312860a2023-11-21T20:48:37ZengMDPI AGViruses1999-49152021-05-0113695710.3390/v13060957Dysregulation of Pulmonary Responses in Severe COVID-19Dandan Wu0Xuexian O. Yang1Department of Molecular Genetics and Microbiology, University of New Mexico School of Medicine, Albuquerque, NM 87131, USADepartment of Molecular Genetics and Microbiology, University of New Mexico School of Medicine, Albuquerque, NM 87131, USAPatients with coronavirus disease 2019 (COVID-19) predominantly have a respiratory tract infection with various symptoms and high mortality is associated with respiratory failure second to severe disease. The risk factors leading to severe disease remain unclear. Here, we reanalyzed a published single-cell RNA-Seq (scRNA-Seq) dataset and found that bronchoalveolar lavage fluid (BALF) of patients with severe disease compared to those with mild disease contained decreased TH17-type cells, decreased IFNA1-expressing cells with lower expression of toll-like receptor 7 (TLR7) and TLR8, increased IgA-expressing B cells, and increased hyperactive epithelial cells (and/or macrophages) expressing matrix metalloproteinases (MMPs), hyaluronan synthase 2 (HAS2), and plasminogen activator inhibitor-1 (PAI-1), which may together contribute to the pulmonary pathology in severe COVID-19. We propose IFN-I (and TLR7/TLR8) and PAI-1 as potential biomarkers to predict the susceptibility to severe COVID-19.https://www.mdpi.com/1999-4915/13/6/957COVID-19TH17IgAtype I interferonPAI-1
spellingShingle Dandan Wu
Xuexian O. Yang
Dysregulation of Pulmonary Responses in Severe COVID-19
Viruses
COVID-19
TH17
IgA
type I interferon
PAI-1
title Dysregulation of Pulmonary Responses in Severe COVID-19
title_full Dysregulation of Pulmonary Responses in Severe COVID-19
title_fullStr Dysregulation of Pulmonary Responses in Severe COVID-19
title_full_unstemmed Dysregulation of Pulmonary Responses in Severe COVID-19
title_short Dysregulation of Pulmonary Responses in Severe COVID-19
title_sort dysregulation of pulmonary responses in severe covid 19
topic COVID-19
TH17
IgA
type I interferon
PAI-1
url https://www.mdpi.com/1999-4915/13/6/957
work_keys_str_mv AT dandanwu dysregulationofpulmonaryresponsesinseverecovid19
AT xuexianoyang dysregulationofpulmonaryresponsesinseverecovid19