Jump to main content
Jump to site search

Issue 11, 2017
Previous Article Next Article

Single-cell analysis of early antiviral gene expression reveals a determinant of stochastic IFNB1 expression

Author affiliations

Abstract

RIG-I-like receptors (RLRs) are cytoplasmic sensors of viral RNA that trigger the signaling cascade that leads to type I interferon (IFN) production. Transcriptional induction of RLRs by IFN is believed to play the role of positive feedback to further amplify viral sensing. We found that RLRs and several other IFN-stimulated genes (ISGs) are induced early in viral infection independent of IFN. Expression of these early ISGs requires IRF3/IRF7 and is highly correlated amongst them. Simultaneous detection of mRNA of IFNB1, viral replicase, and ISGs revealed distinct populations of IFNB1 expressing and non-expressing cells which are highly correlated with the levels of early ISGs but are uncorrelated with IFN-dependent ISGs and viral gene expression. Individual expression of RLRs made IFNB1 expression more robust and earlier, suggesting a causal relation between levels of RLR and induction of IFN.

Graphical abstract: Single-cell analysis of early antiviral gene expression reveals a determinant of stochastic IFNB1 expression

Back to tab navigation

Supplementary files

Publication details

The article was received on 24 Aug 2017, accepted on 19 Oct 2017 and first published on 30 Oct 2017


Article type: Paper
DOI: 10.1039/C7IB00146K
Integr. Biol., 2017,9, 857-867

Search articles by author

Spotlight

Advertisements