Relationship between RIG-Ⅰ and IFNs signaling pathway
- VernacularTitle:RIG-Ⅰ与干扰素信号通路的关系
- Author:
yue-ping, SUN
;
jia-qi, XIAO
;
yan-qiong, ZHOU
;
zhu-gang, WANG
- Publication Type:Journal Article
- Keywords:
retinoic acid-inducible gene-Ⅰ;
interferons;
inflammation responses
- From:Journal of Shanghai Jiaotong University(Medical Science)
2006;0(10):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the regulatory effect of interferons(IFNs) on retinoic acid-inducible gene-Ⅰ(RIG-Ⅰ) and the roles of RIG-Ⅰ in IFNs signaling pathway. Methods RIG-Ⅰ expression before and after IFNs treatment in mouse embryonic fibroblasts(MEFs) were analyzed with Northern blotting and semi-quantitative RT-PCR assay.MEFs isolated from wild-type and RIG-Ⅰ-/-mice were used to test growth inhibition and antiviral activity of IFNs with MTT assay and cytopathic effect inhibition assay. Results Both IFN-? and IFN-? could induce RIG-Ⅰ expression in MEFs.Treated with 100 U/mL IFN-?,growth inhibition and antiviral activity of MEFs from wild-type mice were more significant than those from RIG-Ⅰ-/-mice.With the absence of RIG-Ⅰ,the antiviral protective role IFN-? plays was significantly weaker than the wild type. Conclusion RIG-Ⅰ gene is a novel mediator of interferon effects on cells.It may participate in the inflammation responses mediated by IFNs through modulating cytokines production.
