Transcription Factor E2-2 Is an Essential and Specific Regulator of Plasmacytoid Dendritic Cell Development
In: Cell, Jg. 135 (2008-10-01), Heft 1, S. 37-48
Online
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Zugriff:
SummaryPlasmacytoid dendritic cells (PDCs) represent a unique immune cell type specialized in type I interferon (IFN) secretion in response to viral nucleic acids. The molecular control of PDC lineage specification has been poorly understood. We report that basic helix-loop-helix transcription factor (E protein) E2-2/Tcf4 is preferentially expressed in murine and human PDCs. Constitutive or inducible deletion of murine E2-2 blocked the development of PDCs but not of other lineages and abolished IFN response to unmethylated DNA. Moreover, E2-2 haploinsufficiency in mice and in human Pitt-Hopkins syndrome patients was associated with aberrant expression profile and impaired IFN response of the PDC. E2-2 directly activated multiple PDC-enriched genes, including transcription factors involved in PDC development (SpiB, Irf8) and function (Irf7). These results identify E2-2 as a specific transcriptional regulator of the PDC lineage in mice and humans and reveal a key function of E proteins in the innate immune system.
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Transcription Factor E2-2 Is an Essential and Specific Regulator of Plasmacytoid Dendritic Cell Development
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Autor/in / Beteiligte Person: | Scheu, Stefanie ; Holter, Wolfgang ; Caton, Michele L. ; Zhuang, Yuan ; Reizis, Boris ; Cisse, Babacar ; Kant, Sarina G. ; Holmberg, Dan ; Locksley, Richard M. ; Zweier, Christiane ; Lehner, Manfred ; Rauch, Anita ; Maeda, Takahiro ; Nicolette S. den Hollander |
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Zeitschrift: | Cell, Jg. 135 (2008-10-01), Heft 1, S. 37-48 |
Veröffentlichung: | Elsevier BV, 2008 |
Medientyp: | unknown |
ISSN: | 0092-8674 (print) |
DOI: | 10.1016/j.cell.2008.09.016 |
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