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10.1038/s41423-022-00887-w

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suck abstract from ncbi


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pmid35732914      Cell+Mol+Immunol 2022 ; 19 (8): 872-882
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  • SARS-CoV-2 virus NSP14 Impairs NRF2/HMOX1 activation by targeting Sirtuin 1 #MMPMID35732914
  • Zhang S; Wang J; Wang L; Aliyari S; Cheng G
  • Cell Mol Immunol 2022[Aug]; 19 (8): 872-882 PMID35732914show ga
  • Most deaths from the COVID-19 pandemic are due to acute respiratory distress syndrome (ARDS)-related respiratory failure. Cytokine storms and oxidative stress are the major players in ARDS development during respiratory virus infections. However, it is still unknown how oxidative stress is regulated by viral and host factors in response to SARS-CoV-2 infection. Here, we found that activation of NRF2/HMOX1 significantly suppressed SARS-CoV-2 replication in multiple cell types by producing the metabolite biliverdin, whereas SARS-CoV-2 impaired the NRF2/HMOX1 axis through the action of the nonstructural viral protein NSP14. Mechanistically, NSP14 interacts with the catalytic domain of the NAD-dependent deacetylase Sirtuin 1 (SIRT1) and inhibits its ability to activate the NRF2/HMOX1 pathway. Furthermore, both genetic and pharmaceutical evidence corroborated the novel antiviral activity of SIRT1 against SARS-CoV-2. Therefore, our findings reveal a novel mechanism by which SARS-CoV-2 dysregulates the host antioxidant defense system and emphasize the vital role played by the SIRT1/NRF2 axis in host defense against SARS-CoV-2.
  • |*COVID-19[MESH]
  • |*Respiratory Distress Syndrome[MESH]
  • |Antiviral Agents/pharmacology[MESH]
  • |Exoribonucleases/chemistry/genetics/metabolism[MESH]
  • |Heme Oxygenase-1[MESH]
  • |Humans[MESH]
  • |NF-E2-Related Factor 2[MESH]
  • |Pandemics[MESH]
  • |SARS-CoV-2[MESH]
  • |Sirtuin 1[MESH]
  • |Viral Nonstructural Proteins/chemistry/genetics/metabolism[MESH]


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