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TXM peptides inhibit SARS-CoV-2 infection, syncytia formation, and lower inflamatory consequences [Elektronski vir]Govednik, Tea ...After three years of the SARS-CoV-2 pandemic, the search and availability of relatively low-cost benchtop therapeutics for people not at high risk for a severe disease are still ongoing. Although ... vaccines and new SARS-CoV-2 variants reduce the death toll, the long COVID-19 along with neurologic symptoms can develop and persist even after a mild initial infection. Reinfections, which further increase the risk of sequelae in multiple organ systems as well as the risk of death, continue to require caution. The spike protein of SARS-CoV-2 is an important target for both vaccines and therapeutics. The presence of disulfide bonds in the receptor binding domain (RBD) of the spike protein is essential for its binding to the human ACE2 receptor and cell entry. Here, we demonstrate that thiol-reducing peptides based on the active site of oxidoreductase thioredoxin 1, called thioredoxin mimetic (TXM) peptides, can prevent syncytia formation, SARS-CoV-2 entry into cells, and infection in a mouse model. We also show that TXM peptides inhibit the redox-sensitive HIV pseudotyped viral cell entry. These results support disulfide targeting as a common therapeutic strategy for treating infections caused by viruses using redox-sensitive fusion. Furthermore, TXM peptides exert anti-inflammatory properties by lowering the activation of NF-κB and IRF signaling pathways, mitogen-activated protein kinases (MAPKs) and lipopolysaccharide (LPS)-induced cytokines in mice. The antioxidant and anti-inflammatory effects of the TXM peptides, which also cross the blood-brain barrier, in combination with prevention of viral infections, may provide a beneficial clinical strategy to lower viral infections and mitigate severe consequences of COVID-19.Source: Antiviral research [Elektronski vir]. - ISSN 1872-9096 (Vol. 222, [article no.] 105806, 2024, str. 1-13)Type of material - e-articlePublish date - 2024Language - englishCOBISS.SI-ID - 181304579
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Author | Govednik, Tea ... |
Title | TXM peptides inhibit SARS-CoV-2 infection, syncytia formation, and lower inflamatory consequences [Elektronski vir] |
Publication date | 2024-01-01 |
COBISS.SI-ID | 181304579 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution-NonCommercial 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
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Zdravje živali, okolje in varna hrana | P4-0092-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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Endokrini, imunski in encimski odzivi pri zdravih in bolnih živalih | P4-0053-2019 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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Sintezna biologija in imunologija | P4-0176-2022 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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DNK cepiva in peptidnih inhibitorji proti SARS-CoV-2 | V4-2038-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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General-purpose virus-neutralizing engulfing shells with modular target-specificity | VIROFIGHT | 899619 |
European Commission |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Govednik, Tea | 54624 |
Lainšček, Duško | 34069 |
Kuhar, Urška, veterinarka | 28450 |
Lachish, Marva | ![]() |
Janežič, Sandra, mikrobiologinja | 30755 |
Štrbenc, Malan | 19487 |
Krapež, Uroš | 23320 |
Jerala, Roman | 06628 |
Atlas, Daphne | ![]() |
Manček Keber, Mateja | 21426 |
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