Determinants of SARS-CoV-2 entry and replication in airway mucosal tissue and susceptibility in smokers

Tsuguhisa Nakayama, Ivan T. Lee*, Sizun Jiang, Matthias S. Matter, Carol H. Yan, Jonathan B. Overdevest, Chien-Ting Wu, Yury Goltsev, Liang-Chun Shih, Chun-Kang Liao, Bokai Zhu, Yunhao Bai, Peter Lidsky, Yinghong Xiao, David Zarabanda, Angela Yang, Meena Easwaran, Christian M. Schürch, Pauline Chu, Han ChenAnna K. Stalder, David R. McIlwain, Nicole A. Borchard, Phillip A. Gall, Sachi S. Dholakia, Wei Le, Le Xu, Chih-Jaan Tai, Te-Huei Yeh, Elizabeth Erickson-Direnzo, Jason M. Duran, Kirsten D. Mertz, Peter H. Hwang, Jasmin D. Haslbauer, Peter K. Jackson, Thomas Menter, Raul Andino, Peter D. Canoll, Adam S. DeConde, Zara M. Patel, Alexandar Tzankov*, Garry P. Nolan*, Jayakar V. Nayak*

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

23 Citations (Scopus)
20 Downloads (CityUHK Scholars)

Abstract

Understanding viral tropism is an essential step toward reducing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission, decreasing mortality from coronavirus disease 2019 (COVID-19) and limiting opportunities for mutant strains to arise. Currently, little is known about the extent to which distinct tissue sites in the human head and neck region and proximal respiratory tract selectively permit SARS-CoV-2 infection and replication. In this translational study, we discover key variabilities in expression of angiotensin-converting enzyme 2 (ACE2) and transmembrane serine protease 2 (TMPRSS2), essential SARS-CoV-2 entry factors, among the mucosal tissues of the human proximal airways. We show that SARS-CoV-2 infection is present in all examined head and neck tissues, with a notable tropism for the nasal cavity and tracheal mucosa. Finally, we uncover an association between smoking and higher SARS-CoV-2 viral infection in the human proximal airway, which may explain the increased susceptibility of smokers to developing severe COVID-19. This is at least partially explained by differences in interferon (IFN)-β1 levels between smokers and non-smokers. © 2021
Original languageEnglish
Article number100421
JournalCell Reports Medicine
Volume2
Issue number10
Online published28 Sept 2021
DOIs
Publication statusPublished - 19 Oct 2021
Externally publishedYes

Research Keywords

  • ACE2
  • ciliated epithelial cell
  • COVID-19
  • IFN-β1
  • nasal cavity
  • SARS-CoV-2
  • smoking
  • TMPRSS2
  • trachea
  • upper airway

Publisher's Copyright Statement

  • This full text is made available under CC-BY-NC-ND 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/

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