In:
Blood, American Society of Hematology, Vol. 110, No. 11 ( 2007-11-16), p. 4072-4072
Abstract:
CD34+ cord blood progenitors can develop into interstitial/dermal (int) dendritic cells (DC) and Langerhans cells (LC). IL-4 induces common progenitors to differentiate into intDC and suppresses TGF-β1-dependent LC. The transcriptional mechanisms underlying DC versus LC development remain unclear. We found that the erythroid master transcription factor GATA-1 is differentially expressed in DC subtypes: LC were negative for GATA-1. However, GATA-1 was detected in CD34+-derived intDC and the related monocyte derived DC (moDC) with late kinetics and at low expression levels compared to erythroid cells. Induced expression of GATA-1 in DC/LC precursors promoted the formation of intDC and inhibited concomitant monocyte differentiation. Interestingly, GATA-1 and PU.1 are simultaneously expressed during moDC differentiation and both synergise in CD11b expression. Additionally, GATA-1 suppressed vitamin D3 receptor expression, which is a side-effect of moDC development. Taken together, these data indicate the crucial role of GATA-1 in DC development.
Type of Medium:
Online Resource
ISSN:
0006-4971
,
1528-0020
DOI:
10.1182/blood.V110.11.4072.4072
Language:
English
Publisher:
American Society of Hematology
Publication Date:
2007
detail.hit.zdb_id:
1468538-3
detail.hit.zdb_id:
80069-7