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Urban Particulate Matter Impairment of Airway Surface Liquid-Mediated Coronavirus Inactivation
Journal article   Open access   Peer reviewed

Urban Particulate Matter Impairment of Airway Surface Liquid-Mediated Coronavirus Inactivation

Emma M Stapleton, Jennifer L Welch, Erika A Ubeda, Jinhua Xiang, Joseph Zabner, Ian M Thornell, Matthew W Nonnenmann, Jack T Stapleton and Alejandro P Comellas
The Journal of infectious diseases, Vol.225(2), pp.214-218
01/18/2022
DOI: 10.1093/infdis/jiab545
PMCID: PMC8689861
PMID: 34734257
url
https://doi.org/10.1093/infdis/jiab545View
Published (Version of record) Open Access

Abstract

Air pollution particulate matter (PM) is associated with SARS-CoV-2 infection and severity, although mechanistic studies are lacking. We tested whether airway surface liquid (ASL) from primary human airway epithelial cells is antiviral against SARS-CoV-2 and human alphacoronavirus 229E (CoV-229E) (responsible for common colds), and whether PM (urban, indoor air pollution [IAP], volcanic ash) affected ASL antiviral activity. ASL inactivated SARS-CoV-2 and CoV-229E. Independently, urban PM also decreased SARS-CoV-2 and CoV-229E infection, and IAP PM decreased CoV-229E infection. However, in combination, urban PM impaired ASL's antiviral activity against both viruses, and the same effect occurred for IAP PM and ash against SARS-CoV-2, suggesting that PM may enhance SARS-CoV-2 infection.
Polymerase Chain Reaction Urban Health Antiviral Agents - pharmacology Coronavirus 229E, Human COVID-19 - prevention & control COVID-19 - transmission Humans Immunity, Innate Particulate Matter - adverse effects SARS-CoV-2 Urban Population

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