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http://purl.uniprot.org/citations/20403236http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/20403236http://www.w3.org/2000/01/rdf-schema#comment"

Objective

To investigate the molecular mechanisms by which IFN-alpha regulated retinoic acid-induced gene G (RIG-G) expression.

Methods

The expression of STAT1, p-STAT1 and RIG-G in IFN-alpha-treated NB4 cells was detected by Western blot. The roles of STAT1, STAT2 and IRF-9 in IFN-alpha-induced RIG-G expression were analyzed in STAT1-null U3A cells by cell transfection, reporter gene assay, co-immunoprecipitation and chromatin immunoprecipitaion.

Results

In U3A cells, only when STAT2 and IRF-9 were co-transfected, the luciferase activities of RIG-G promoter-containing reporter gene could be highly increased about 8-fold compared with that in the control group. Moreover, in the absence of IFN-alpha, similar effects were observed in either IRF-9 co-transfected with wild type or mutant form of STAT2, whereas IFN-alpha could increase the transactivation activity of wild type STAT2 and IRF-9 by 6-fold compared with that without IFN-alpha, but had no effect on mutant STAT2. In addition, STAT2 could interact with IRF-9 and bind to the RIG-G promoter.

Conclusion

STAT2 may interact with IRF-9 in a STAT1-independent manner. The complex STAT2/IRF-9 is the key factor mediating the expression of RIG-G gene regulated by IFN-alpha. This is a novel signal transduction cascade for IFN which is different from the classical JAK-STAT pathway."xsd:string
http://purl.uniprot.org/citations/20403236http://purl.uniprot.org/core/author"Li D."xsd:string
http://purl.uniprot.org/citations/20403236http://purl.uniprot.org/core/author"Zhang Z.L."xsd:string
http://purl.uniprot.org/citations/20403236http://purl.uniprot.org/core/author"Jia P.M."xsd:string
http://purl.uniprot.org/citations/20403236http://purl.uniprot.org/core/author"Pan X.R."xsd:string
http://purl.uniprot.org/citations/20403236http://purl.uniprot.org/core/author"Tong J.H."xsd:string
http://purl.uniprot.org/citations/20403236http://purl.uniprot.org/core/author"Xu G.P."xsd:string
http://purl.uniprot.org/citations/20403236http://purl.uniprot.org/core/author"Lou Y.J."xsd:string
http://purl.uniprot.org/citations/20403236http://purl.uniprot.org/core/date"2010"xsd:gYear
http://purl.uniprot.org/citations/20403236http://purl.uniprot.org/core/name"Zhonghua Zhong Liu Za Zhi"xsd:string
http://purl.uniprot.org/citations/20403236http://purl.uniprot.org/core/pages"88-92"xsd:string
http://purl.uniprot.org/citations/20403236http://purl.uniprot.org/core/title"[A novel molecular mechanism of interferon alpha-regulated expression of retinoic acid-induced gene G]."xsd:string
http://purl.uniprot.org/citations/20403236http://purl.uniprot.org/core/volume"32"xsd:string
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