TLR10 overexpression modulates immune response in A549 lung epithelial cells challenged with SARS-CoV-2 S and N proteins

Toll-like receptors (TLRs) play an important role in the recognition of viral particles and activation of the innate immune system, but their role in SARS-CoV-2 infection is still poorly characterized. In the present study, we investigated the role of Toll-like receptor 10 (TLR10) in modulating the...

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Main Authors: Špela Knez, Mojca Narat, Jernej Ogorevc
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Immunology
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Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2024.1490478/full
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author Špela Knez
Mojca Narat
Jernej Ogorevc
author_facet Špela Knez
Mojca Narat
Jernej Ogorevc
author_sort Špela Knez
collection DOAJ
description Toll-like receptors (TLRs) play an important role in the recognition of viral particles and activation of the innate immune system, but their role in SARS-CoV-2 infection is still poorly characterized. In the present study, we investigated the role of Toll-like receptor 10 (TLR10) in modulating the immune response during SARS-CoV-2 infection. The results showed that overexpression of TLR10 in A549 lung epithelial cells, immunostimulated with SARS-CoV-2 proteins S and N mainly downregulated proinflammatory cytokines and interferons and affected gene expression in the cocultured THP-1 monocytes. Our results suggest that TLR10 could mediate the extent of SARS-CoV-2 infection by downregulating the release of inflammatory cytokines and chemokines such as CXCL10, IL6, IL8, and IFNβ. Modulation of TLR10 expression could have implications for the treatment of patients with severe COVID-19, in whom excessive inflammation leading to the development of acute respiratory distress syndrome (ARDS) is a key feature. However, further research is needed to fully understand the impact of modulating TLR10 expression on the antiviral response and the overall balance of the immune response during SARS-CoV-2 infection.
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spelling doaj-art-9ef4f321fa36417f9b33d4250d021da02025-01-20T05:23:52ZengFrontiers Media S.A.Frontiers in Immunology1664-32242025-01-011510.3389/fimmu.2024.14904781490478TLR10 overexpression modulates immune response in A549 lung epithelial cells challenged with SARS-CoV-2 S and N proteinsŠpela KnezMojca NaratJernej OgorevcToll-like receptors (TLRs) play an important role in the recognition of viral particles and activation of the innate immune system, but their role in SARS-CoV-2 infection is still poorly characterized. In the present study, we investigated the role of Toll-like receptor 10 (TLR10) in modulating the immune response during SARS-CoV-2 infection. The results showed that overexpression of TLR10 in A549 lung epithelial cells, immunostimulated with SARS-CoV-2 proteins S and N mainly downregulated proinflammatory cytokines and interferons and affected gene expression in the cocultured THP-1 monocytes. Our results suggest that TLR10 could mediate the extent of SARS-CoV-2 infection by downregulating the release of inflammatory cytokines and chemokines such as CXCL10, IL6, IL8, and IFNβ. Modulation of TLR10 expression could have implications for the treatment of patients with severe COVID-19, in whom excessive inflammation leading to the development of acute respiratory distress syndrome (ARDS) is a key feature. However, further research is needed to fully understand the impact of modulating TLR10 expression on the antiviral response and the overall balance of the immune response during SARS-CoV-2 infection.https://www.frontiersin.org/articles/10.3389/fimmu.2024.1490478/fullSARS-CoV-2COVID-19Toll-like receptor 10interferonsproinflammatory cytokinesinnate immunity
spellingShingle Špela Knez
Mojca Narat
Jernej Ogorevc
TLR10 overexpression modulates immune response in A549 lung epithelial cells challenged with SARS-CoV-2 S and N proteins
Frontiers in Immunology
SARS-CoV-2
COVID-19
Toll-like receptor 10
interferons
proinflammatory cytokines
innate immunity
title TLR10 overexpression modulates immune response in A549 lung epithelial cells challenged with SARS-CoV-2 S and N proteins
title_full TLR10 overexpression modulates immune response in A549 lung epithelial cells challenged with SARS-CoV-2 S and N proteins
title_fullStr TLR10 overexpression modulates immune response in A549 lung epithelial cells challenged with SARS-CoV-2 S and N proteins
title_full_unstemmed TLR10 overexpression modulates immune response in A549 lung epithelial cells challenged with SARS-CoV-2 S and N proteins
title_short TLR10 overexpression modulates immune response in A549 lung epithelial cells challenged with SARS-CoV-2 S and N proteins
title_sort tlr10 overexpression modulates immune response in a549 lung epithelial cells challenged with sars cov 2 s and n proteins
topic SARS-CoV-2
COVID-19
Toll-like receptor 10
interferons
proinflammatory cytokines
innate immunity
url https://www.frontiersin.org/articles/10.3389/fimmu.2024.1490478/full
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AT mojcanarat tlr10overexpressionmodulatesimmuneresponseina549lungepithelialcellschallengedwithsarscov2sandnproteins
AT jernejogorevc tlr10overexpressionmodulatesimmuneresponseina549lungepithelialcellschallengedwithsarscov2sandnproteins