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2016 ; 213
(6
): 897-911
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The transcription factor Zeb2 regulates development of conventional and
plasmacytoid DCs by repressing Id2
#MMPMID27185854
Scott CL
; Soen B
; Martens L
; Skrypek N
; Saelens W
; Taminau J
; Blancke G
; Van Isterdael G
; Huylebroeck D
; Haigh J
; Saeys Y
; Guilliams M
; Lambrecht BN
; Berx G
J Exp Med
2016[May]; 213
(6
): 897-911
PMID27185854
show ga
Plasmacytoid dendritic cells (DCs [pDCs]) develop from pre-pDCs, whereas two
lineages of conventional DCs (cDCs; cDC1s and cDC2s) develop from
lineage-committed pre-cDCs. Several transcription factors (TFs) have been
implicated in regulating the development of pDCs (E2-2 and Id2) and cDC1s (Irf8,
Id2, and Batf3); however, those required for the early commitment of pre-cDCs
toward the cDC2 lineage are unknown. Here, we identify the TF zinc finger E
box-binding homeobox 2 (Zeb2) to play a crucial role in regulating DC
development. Zeb2 was expressed from the pre-pDC and pre-cDC stage onward and
highly expressed in mature pDCs and cDC2s. Mice conditionally lacking Zeb2 in
CD11c(+) cells had a cell-intrinsic reduction in pDCs and cDC2s, coupled with an
increase in cDC1s. Conversely, mice in which CD11c(+) cells overexpressed Zeb2
displayed a reduction in cDC1s. This was accompanied by altered expression of
Id2, which was up-regulated in cDC2s and pDCs from conditional knockout mice.
Zeb2 chromatin immunoprecipitation analysis revealed Id2 to be a direct target of
Zeb2. Thus, we conclude that Zeb2 regulates commitment to both the cDC2 and pDC
lineages through repression of Id2.
|Animals
[MESH]
|Dendritic Cells/cytology/*immunology
[MESH]
|Homeodomain Proteins/genetics/*immunology
[MESH]
|Inhibitor of Differentiation Protein 2/genetics/*immunology
[MESH]