Transcriptomics

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Genome-wide gene expression analysis of FAF1 silencing in HeLa cells


ABSTRACT: This study is designed to examine the cellular functions of human Fas-associated factor 1 (FAF1) containing multiple ubiquitin-related domains. Microarray analyses revealed that interferon stimulated genes related to antiviral response are significantly increased in FAF1 knocked down HeLa cells. Silencing FAF1 enhanced the poly I:C and respiratory syncytial virus (RSV) induced productions of type I interferons (IFNs), the target gene of interferon regulator factor 3 (IRF3). IRF3 is a key transcription factor in IFNβ signaling responsible for host innate immune response. This study also found that FAF1 and IRF3 physically associate with IPO5/importin-β3 and that overexpression of FAF1 reduces the interaction between IRF3 and IPO5/importin-β3. These findings suggest that FAF1 negatively regulates IRF3-mediated IFNβ production and antiviral innate immune response via regulating nuclear translocation of IRF3. We conclude that FAF1 plays a novel role negatively regulating virus-induced IFNβ production and antiviral response by inhibiting the translocation of active phosphorylated IRF3 from cytosol to nucleus.

ORGANISM(S): Homo sapiens

PROVIDER: GSE71665 | GEO | 2016/01/29

SECONDARY ACCESSION(S): PRJNA291761

REPOSITORIES: GEO

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