Essential immunoregulatory role for BCAP in B cell development and function.
Essential immunoregulatory role for BCAP in B cell development and function.
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DOI:
10.1084/jem.20011751
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发表时间:
2002-03-04
期刊:
影响因子:
--
通讯作者:
Kurosaki T
中科院分区:
文献类型:
--
作者:
Yamazaki T;Takeda K;Gotoh K;Takeshima H;Akira S;Kurosaki T
BCAP was recently cloned as a binding molecule to phosphoinositide 3-kinase (PI3K). To investigate the role of BCAP, mutant mice deficient in BCAP were generated. While BCAP-deficient mice are viable, they have decreased numbers of mature B cells and B1 B cell deficiency. The mice produce lower titers of serum immunoglobulin (Ig)M and IgG3, and mount attenuated responses to T cell–independent type II antigen. Upon B cell receptor cross-linking, BCAP-deficient B cells exhibit reduced Ca2+ mobilization and poor proliferative responses. These findings demonstrate that BCAP plays a pivotal immunoregulatory role in B cell development and humoral immune responses.
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