Bruton's tyrosine kinase is required for activation of IkappaB kinase and nuclear factor kappaB in response to B cell receptor engagement.
Bruton's tyrosine kinase is required for activation of IkappaB kinase and nuclear factor kappaB in response to B cell receptor engagement.
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DOI:
10.1084/jem.191.10.1745
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发表时间:
2000-05-15
期刊:
影响因子:
--
通讯作者:
Khan WN
中科院分区:
文献类型:
--
作者:
Petro JB;Rahman SM;Ballard DW;Khan WN
Mutations in the gene encoding Bruton's tyrosine kinase (btk) cause the B cell deficiency diseases X-linked agammaglobulinemia (XLA) in humans and X-linked immunodeficiency (xid) in mice. In vivo and in vitro studies indicate that the BTK protein is essential for B cell survival, cell cycle progression, and proliferation in response to B cell antigen receptor (BCR) stimulation. BCR stimulation leads to the activation of transcription factor nuclear factor (NF)-κB, which in turn regulates genes controlling B cell growth. We now demonstrate that a null mutation in btk known to cause the xid phenotype prevents BCR-induced activation of NF-κB. This defect can be rescued by reconstitution with wild-type BTK. This mutation also interferes with BCR-directed activation of IκB kinase (IKK), which normally targets the NF-κB inhibitor IκBα for degradation. Taken together, these findings indicate that BTK couples IKK and NF-κB to the BCR. Interference with this coupling mechanism may contribute to the B cell deficiencies observed in XLA and xid.
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DOI:
10.1084/jem.161.3.446
发表时间:
1985-03-01
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Imboden JB;Stobo JD
通讯作者:
Stobo JD
影响因子:
3.6
作者:
Bendall, HH;Sikes, ML;Oltz, EM
通讯作者:
Oltz, EM
影响因子:
10.5
作者:
KONTGEN, F;GRUMONT, RJ;GERONDAKIS, S
通讯作者:
GERONDAKIS, S
影响因子:
64.5
作者:
BALLARD, DW;WALKER, WH;GREENE, WC
通讯作者:
GREENE, WC
DOI:
10.1006/bbrc.1999.0548
发表时间:
1999-04-21
影响因子:
3.1
作者:
Chen, CL;Yull, FE;Kerr, LD
通讯作者:
Kerr, LD