Stage-specific control of early B cell development by the transcription factor Ikaros.
Stage-specific control of early B cell development by the transcription factor Ikaros.
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DOI:
10.1038/ni.2828
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发表时间:
2014-03
影响因子:
30.5
通讯作者:
Busslinger M
中科院分区:
文献类型:
--
作者:
Schwickert TA;Tagoh H;Gültekin S;Dakic A;Axelsson E;Minnich M;Ebert A;Werner B;Roth M;Cimmino L;Dickins RA;Zuber J;Jaritz M;Busslinger M
Ikaros is an essential regulator of lymphopoiesis. Here, we studied the B-cell-specific function of Ikaros by conditional Ikzf1 inactivation in pro-B cells. B-cell development was arrested at an aberrant ‘pro-B’ cell stage characterized by increased cell adhesion and loss of pre-B cell receptor signaling. Ikaros was found to activate genes coding for pre-BCR signal transducers and to repress genes involved in the downregulation of pre-BCR signaling and upregulation of the integrin signaling pathway. Unexpectedly, derepression of Aiolos expression could not compensate for the loss of Ikaros in pro-B cells. Ikaros induced or suppressed active chromatin at regulatory elements of activated or repressed target genes. Notably, Ikaros binding and target gene expression was dynamically regulated at distinct stages of early B-lymphopoiesis.
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影响因子:
3.7
作者:
Miyamoto, Yuki;Yamauchi, Junji;Tanoue, Akito
通讯作者:
Tanoue, Akito
影响因子:
5.3
作者:
MOLNAR, A;GEORGOPOULOS, K
通讯作者:
GEORGOPOULOS, K
影响因子:
5.3
作者:
Arco, PGD;Koipally, J;Georgopoulos, K
通讯作者:
Georgopoulos, K
影响因子:
20.3
作者:
Ferreiros-Vidal, Isabel;Carroll, Thomas;Merkenschlager, Matthias
通讯作者:
Merkenschlager, Matthias
影响因子:
4.8
作者:
Koipally, J;Georgopoulos, K
通讯作者:
Georgopoulos, K