Journal
AUTOPHAGY
Volume 18, Issue 9, Pages 2246-2248Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15548627.2021.2021496
Keywords
Cell death; Covid; lung; NSP; pyroptosis
Categories
Funding
- TUYF Charitable Trust
- Shenzhen Science and Technology Programme [JCYJ20180508161604382]
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This passage discusses how researchers are working to understand how SARS-CoV-2 damages the respiratory system and other organs, and the potential link between autophagy, inflammation, and cell death.
As the coronavirus disease 2019 (COVID-19) pandemic continues to wreak havoc, researchers around the globe are working together to understand how the responsible agent - severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) damages the respiratory system and other organs. Macroautophagy/autophagy is an innate immune response against viral infection and is known to be manipulated by positive-strand RNA viruses, including SARS-CoV-2. Nevertheless, the link between autophagic subversion and cell death or inflammation in COVID-19 remains unclear. Emerging evidence suggests that SARS-CoV-2 could trigger pyroptosis, a form of inflammatory programmed cell death characterized by the activation of inflammasomes and CASP1 (caspase 1) and the formation of transmembrane pores by GSDMD (gasdermin D). In this connection, autophagic flux impairment is a known activator of inflammasomes. This prompted us to investigate if SARS-CoV-2 could target autophagy to induce inflammasome-dependent pyroptosis in lung epithelial cells.
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