Synergistic Detrimental Effects of Cigarette Smoke, Alcohol, and SARS-CoV-2 in COPD Bronchial Epithelial Cells-Reference-Cited by-同舟云学术

Synergistic Detrimental Effects of Cigarette Smoke, Alcohol, and SARS-CoV-2 in COPD Bronchial Epithelial Cells

Published:2023-03-22 Issue:3 Volume:12 Page:498
ISSN:2076-0817
Container-title:Pathogens
language:en
Short-container-title:Pathogens

Author:

Muralidharan Abenaya¹^ORCID,Bauer Christopher D.²,Katafiasz Dawn M.²,Strah Heather M.²,Siddique Aleem³^ORCID,Reid St Patrick¹,Bailey Kristina L.²⁴^ORCID,Wyatt Todd A.²⁴⁵

Affiliation:

1. Department of Pathology and Microbiology, College of Medicine, The University of Nebraska Medical Center, Omaha, NE 68198, USA

2. Pulmonary, Critical Care, and Sleep Medicine Division, Department of Internal Medicine, College of Medicine, the University of Nebraska Medical Center, Omaha, NE 68198, USA

3. Department of Surgery, College of Medicine, the University of Nebraska Medical Center, Omaha, NE 68198, USA

4. Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105, USA

5. Department of Environmental, Agricultural & Occupational Health, College of Public Health, the University of Nebraska Medical Center, Omaha, NE 68198, USA

Abstract

Lung conditions such as COPD, as well as risk factors such as alcohol misuse and cigarette smoking, can exacerbate COVID-19 disease severity. Synergistically, these risk factors can have a significant impact on immunity against pathogens. Here, we studied the effect of a short exposure to alcohol and/or cigarette smoke extract (CSE) in vitro on acute SARS-CoV-2 infection of ciliated human bronchial epithelial cells (HBECs) collected from healthy and COPD donors. We observed an increase in viral titer in CSE- or alcohol-treated COPD HBECs compared to untreated COPD HBECs. Furthermore, we treated healthy HBECs accompanied by enhanced lactate dehydrogenase activity, indicating exacerbated injury. Finally, IL-8 secretion was elevated due to the synergistic damage mediated by alcohol, CSE, and SARS-CoV-2 in COPD HBECs. Together, our data suggest that, with pre-existing COPD, short exposure to alcohol or CSE is sufficient to exacerbate SARS-CoV-2 infection and associated injury, impairing lung defences.

Funder

VA Merit

Department of Veterans Affairs

Canadian Institutes of Health Research Fellowship Award

Publisher

MDPI AG

Subject

Infectious Diseases,Microbiology (medical),General Immunology and Microbiology,Molecular Biology,Immunology and Allergy

Link

https://www.mdpi.com/2076-0817/12/3/498/pdf

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