Reference : Viral induction of Zac1b through TLR3- and IRF3-dependent pathways
Scientific journals : Article
Life sciences : Veterinary medicine & animal health
Life sciences : Biochemistry, biophysics & molecular biology
http://hdl.handle.net/2268/76078
Viral induction of Zac1b through TLR3- and IRF3-dependent pathways
English
Warzée, Barbara mailto [Université de Liège - ULg > Département de sciences fonctionnelles > GIGA-R : Biochimie et biologie moléculaire >]
Mesnil, Claire mailto [Université de Liège - ULg > Département de sciences fonctionnelles > GIGA-R : Biochimie et biologie moléculaire >]
Hober, D. [University Lille2 > FacultyofMedicine,CHRULille,LaboratoryofVirology/EA3610,Lille59037,France > > >]
Caloone, D. [University Lille2 > FacultyofMedicine,CHRULille,LaboratoryofVirology/EA3610,Lille59037,France > > >]
Pirottin, Dimitri mailto [Université de Liège - ULg > Département de sciences fonctionnelles > Département de sciences fonctionnelles >]
Garigliany, Mutien-Marie mailto [Université de Liège - ULg > Département de morphologie et pathologie > Pathologie spéciale et autopsies >]
Desmecht, Daniel mailto [Université de Liège - ULg > Département de morphologie et pathologie > Pathologie spéciale et autopsies >]
Drion, Pierre mailto [Université de Liège - ULg > Département des sciences biomédicales et précliniques > GIGA-R:Méth. expér.des anim. de labo et éth. en expér. anim. - GIGA-R : Services généraux de l'Université >]
Journot, L. [Institut deGénomiqueFonctionnelle,Montpellier,France > > > > > >]
Lekeux, Pierre mailto [Université de Liège - ULg > Département de sciences fonctionnelles > Physiologie >]
Bureau, Fabrice mailto [Université de Liège - ULg > Département de sciences fonctionnelles > GIGA-R : Biochimie et biologie moléculaire >]
Desmet, Christophe mailto [Université de Liège - ULg > Département de sciences fonctionnelles > Physiologie >]
2010
Molecular Immunology
Pergamon-Elsevier Science Ltd
48
1-3
119-127
Yes (verified by ORBi)
International
0161-5890
Oxford
United Kingdom
[en] Poly(I:C) ; Zac1 ; TLR3 ; IRF3 ; Virus
[en] Zinc finger protein regulator of apoptosis and cell cycle arrest (Zac1) is a transcription factor able to induce apoptosis or cell cycle arrest through independent pathways. In spite of the important potential functions attributed to Zac1, little is known of its physiological regulation and biological function. We discovered that variant Zac1b was expressed in murine embryonic fibroblasts (MEFs) treated with polyriboinosinic polyribocytidylic acid [poly(I:C)], a synthetic double-stranded RNA. This regulation occurred mainly through Toll-Like Receptor 3 (TLR3)- and Interferon Regulatory Factor 3 (IRF3)-dependent pathways. As TLR3 and IRF3 are central activators of antiviral immunity, we hypothesized that Zac1 may be implicated in antiviral responses. In line with this notion, we observed that Zac1b was expressed in MEFs infected with Encephalomyocarditis virus (EMCV). We also observed that Zac1-deficient MEFs were less sensitive to EMCV-induced cell death than wild-type MEFs. However, Zac1 gene inactivation had no effect on the survival of mice infected with EMCV. In conclusion, this study describes for the first time a transcriptional regulation of Zac1b, induced by synthetic dsRNA and RNA viruses, the functional significance of which remains to be further investigated.
Researchers ; Professionals
http://hdl.handle.net/2268/76078
10.1016/j.molimm.2010.09.004

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