First Author | Wu X | Year | 2013 |
Journal | PLoS One | Volume | 8 |
Issue | 5 | Pages | e64800 |
PubMed ID | 23741395 | Mgi Jnum | J:200827 |
Mgi Id | MGI:5509394 | Doi | 10.1371/journal.pone.0064800 |
Citation | Wu X, et al. (2013) Bcl11a controls Flt3 expression in early hematopoietic progenitors and is required for pDC development in vivo. PLoS One 8(5):e64800 |
abstractText | Bcl11a is a transcription factor known to regulate lymphoid and erythroid development. Recent bioinformatic analysis of global gene expression patterns has suggested a role for Bcl11a in the development of dendritic cell (DC) lineages. We tested this hypothesis by analyzing the development of DC and other lineages in Bcl11a (-/-) mice. We found that Bcl11a was required for expression of IL-7 receptor (IL-7R) and Flt3 in early hematopoietic progenitor cells. In addition, we found severely decreased numbers of plasmacytoid dendritic cells (pDCs) in Bcl11a (-/-) fetal livers and in the bone marrow of Bcl11a (-/-) fetal liver chimeras. Moreover, Bcl11a (-/-) cells showed severely impaired in vitro development of Flt3L-derived pDCs and classical DCs (cDCs). In contrast, we found normal in vitro development of DCs from Bcl11a (-/-) fetal liver cells treated with GM-CSF. These results suggest that the persistent cDC development observed in Bcl11a (-/-) fetal liver chimeras reflects derivation from a Bcl11a- and Flt3-independent pathway in vivo. |