Figure 2.

ACE2 expression is upregulated in human airway epithelial cells in response to rhinovirus infection. Primary epithelial cells from four donors were exposed to rhinovirus or medium alone (used as a control). Twenty‐four hours after infection, gene expression was assessed using Affymetrix U133 plus 2.0 human GeneChips. ACE2 expression data were retrieved from the GEO microarray database (NCBI accession: PRJNA137767; GEO: GSE27973). ACE2, angiotensin‐converting enzyme 2; GEO, Gene Expression Omnibus; NCBI, National Center for Biotechnology Information