Single-cell analysis of early antiviral gene expression reveals a determinant of stochastic IFNB1 expression.
Integr Biol (Camb)
; 9(11): 857-867, 2017 Nov 13.
Article
en En
| MEDLINE
| ID: mdl-29098213
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.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Regulación de la Expresión Génica
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Interferón beta
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Análisis de la Célula Individual
Límite:
Animals
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Humans
Idioma:
En
Revista:
Integr Biol (Camb)
Asunto de la revista:
BIOLOGIA
Año:
2017
Tipo del documento:
Article
País de afiliación:
Estados Unidos