PI3K induces B-cell development and regulates B cell identity.
PI3K induces B-cell development and regulates B cell identity.
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PI3K诱导B细胞发育并调节B细胞身份。
DOI:
10.1038/s41598-018-19460-5
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发表时间:
2018-01-22
影响因子:
4.6
通讯作者:
Jumaa H
中科院分区:
文献类型:
--
作者:
Abdelrasoul H;Werner M;Setz CS;Okkenhaug K;Jumaa H
Phosphoinositide-3 kinase (PI3K) signaling is important for the survival of numerous cell types and class IA of PI3K is specifically required for the development of B cells but not for T cell development. Here, we show that class IA PI3K-mediated signals induce the expression of the transcription factor Pax5, which plays a central role in B cell commitment and differentiation by activating the expression of central B cell-specific signaling proteins such as SLP-65 and CD19. Defective class IA PI3K function leads to reduction in Pax5 expression and prevents B cell development beyond the stage expressing the precursor B cell receptor (pre-BCR). Investigating the mechanism of PI3K-induced Pax5 expression revealed that it involves a network of transcription factors including FoxO1 and Irf4 that directly binds to the Pax5 gene. Together, our results suggest that PI3K signaling links survival and differentiation of developing B cells with B cell identity and that decreased PI3K activity in pre-B cells results in reduced Pax5 expression and lineage plasticity.
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DOI:
10.1084/jem.20042393
发表时间:
2005-03-21
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Dias S;Silva H Jr;Cumano A;Vieira P
通讯作者:
Vieira P
影响因子:
30.5
作者:
通讯作者:
--
影响因子:
32.4
作者:
Decker, Thorsten;di Magliano, Marina Pasca;Busslinger, Meinrad
通讯作者:
Busslinger, Meinrad
影响因子:
20.3
作者:
Aiba, Yuichi;Kameyama, Megumi;Kurosaki, Tomohiro
通讯作者:
Kurosaki, Tomohiro
影响因子:
30.5
作者:
Flemming, A;Brummer, T;Jumaa, H
通讯作者:
Jumaa, H