Cells’ Response to SARS-CoV-2 Different from Flu, RSV

The host transcriptional signature elicited by the coronavirus appears to be less robust and lacks the induction of key antiviral genes.

Written byAbby Olena, PhD
| 4 min read

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ABOVE: Like in human cells, ferrets’ transcriptional responses to SARS-CoV-2 infection lack an upregulation of certain antiviral genes.
© ISTOCK.COM, JUERGENBOSSE

SARS-CoV-2, the coronavirus behind the COVID-19 pandemic, seems to provoke a muted antiviral reaction in human cells and in ferrets, according to a study posted to bioRxiv on March 24. The authors of the study, which is not yet peer-reviewed, propose that this distinctive transcriptional response may be responsible for the coronavirus’s high fatality rate.

“The value of really looking at how the host is responding to this virus is obviously very high and can inform [future work on] drugs,” says Carolina Lopez, who studies how viruses stimulate the immune system at University of Pennsylvania and who did not participate in the study.

Benjamin tenOever, a microbiologist at the Icahn School of Medicine at Mount Sinai in New York, and his group were already studying respiratory viruses when SARS-CoV-2 hit ...

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Meet the Author

  • abby olena

    As a freelancer for The Scientist, Abby reports on new developments in life science for the website. She has a PhD from Vanderbilt University and got her start in science journalism as the Chicago Tribune’s AAAS Mass Media Fellow in 2013. Following a stint as an intern for The Scientist, Abby was a postdoc in science communication at Duke University, where she developed and taught courses to help scientists share their research. In addition to her work as a science journalist, she leads science writing and communication workshops and co-produces a conversational podcast. She is based in Alabama.  

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