Differential responses of immune cells to type I interferon contribute to host resistance to viral infection.
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Authors
Baranek, ThomasManh, Thien-Phong Vu
Alexandre, Yannick
Maqbool, Muhammad Ahmad
Cabeza, Joaquin Zacarias
Tomasello, Elena
Crozat, Karine
Bessou, Gilles
Zucchini, Nicolas
Robbins, Scott H
Vivier, Eric
Kalinke, Ulrich
Ferrier, Pierre
Dalod, Marc
Issue Date
2012-10-18
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Show full item recordAbstract
Type I interferons (IFNs) are central to antiviral defense, but how they orchestrate immune cell function is incompletely understood. We determined that IFNs produced during murine cytomegalovirus (MCMV) infection differentially affect dendritic cells (DCs) and natural killer (NK) cells. IFNs induce cell-intrinsic responses in DCs, activating antiproliferative, antiviral, and lymphocyte-activating gene networks, consistent with high activity of the transcription factor STAT1 in these cells. By comparison, NK cells exhibit lower STAT1 expression and reduced IFN responsiveness. Rather, IFNs indirectly affect NK cells by inducing IL-15, which activates the transcription factor E2F and stimulates genes promoting cell expansion. IFN cell-intrinsic responses are necessary in DCs, but not NK cells, for MCMV resistance. Thus, sensitivity to IFN-induced cytokines and differences in IFN receptor signaling program immune cells to mount distinct responses that promote viral control.Citation
Differential responses of immune cells to type I interferon contribute to host resistance to viral infection. 2012, 12 (4):571-84 Cell Host MicrobeAffiliation
Centre d'Immunologie de Marseille-Luminy, UNIV UM2, Aix-Marseille Université, Parc scientifique et technologique de Luminy, 13288 Marseille, France; Institut National de la Santé et de la Recherche Medicale (Inserm), UMR1104, 13288 Marseille, France; Centre National de la Recherche Scientifique (CNRS), UMR7280, 13288 Marseille, France.Journal
Cell host & microbePubMed ID
23084923Type
ArticleLanguage
enISSN
1934-6069ae974a485f413a2113503eed53cd6c53
10.1016/j.chom.2012.09.002
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