SARS-CoV-2 entry factors are highly expressed in nasal epithelial cells together with innate immune genes.
Research paper by
Waradon W Sungnak, Ni N Huang, Christophe C Bécavin, Marijn M Berg, Rachel R Queen, Monika M Litvinukova, Carlos C Talavera-López, Henrike H Maatz, Daniel D Reichart, Fotios F Sampaziotis, Kaylee B KB Worlock, Masahiro M Yoshida, Josephine L JL Barnes,
We investigated SARS-CoV-2 potential tropism by surveying expression of viral entry-associated genes in single-cell RNA-sequencing data from multiple tissues from healthy human donors. We co-detected these transcripts in specific respiratory, corneal and intestinal epithelial cells, potentially explaining the high efficiency of SARS-CoV-2 transmission. These genes are co-expressed in nasal epithelial cells with genes involved in innate immunity, highlighting the cells' potential role in initial viral infection, spread and clearance. The study offers a useful resource for further lines of inquiry with valuable clinical samples from COVID-19 patients and we provide our data in a comprehensive, open and user-friendly fashion at www.covid19cellatlas.org.