IkappaB kinase alpha is essential for mature B cell development and function.
IkappaB kinase alpha is essential for mature B cell development and function.
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DOI:
10.1084/jem.193.4.417
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发表时间:
2001-02-19
期刊:
影响因子:
--
通讯作者:
Akira S
中科院分区:
文献类型:
--
作者:
Kaisho T;Takeda K;Tsujimura T;Kawai T;Nomura F;Terada N;Akira S
IκB kinase (IKK) α and β phosphorylate IκB proteins and activate the transcription factor, nuclear factor (NF)-κB. Although both are highly homologous kinases, gene targeting experiments revealed their differential roles in vivo. IKKα is involved in skin and limb morphogenesis, whereas IKKβ is essential for cytokine signaling. To elucidate in vivo roles of IKKα in hematopoietic cells, we have generated bone marrow chimeras by transferring control and IKKα-deficient fetal liver cells. The mature B cell population was decreased in IKKα−/− chimeras. IKKα−/− chimeras also exhibited a decrease of serum immunoglobulin basal level and impaired antigen-specific immune responses. Histologically, they also manifested marked disruption of germinal center formation and splenic microarchitectures that depend on mature B cells. IKKα−/− B cells not only showed impairment of survival and mitogenic responses in vitro, accompanied by decreased, although inducible, NF-κB activity, but also increased turnover rate in vivo. In addition, transgene expression of bcl-2 could only partially rescue impaired B cell development in IKKα−/− chimeras. Taken together, these results demonstrate that IKKα is critically involved in the prevention of cell death and functional development of mature B cells.
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影响因子:
15.3
作者:
Bajpai, U D;Zhang, K;Teutsch, M;Sen, R;Wortis, H H
通讯作者:
Wortis, H H
DOI:
10.1084/jem.187.2.147
发表时间:
1998-01-19
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Franzoso G;Carlson L;Poljak L;Shores EW;Epstein S;Leonardi A;Grinberg A;Tran T;Scharton-Kersten T;Anver M;Love P;Brown K;Siebenlist U
通讯作者:
Siebenlist U
影响因子:
64.8
作者:
HARDY, RR;HAYAKAWA, K;HERZENBERG, LA
通讯作者:
HERZENBERG, LA
DOI:
10.1073/pnas.93.8.3405
发表时间:
1996-04-16
影响因子:
11.1
作者:
Gerondakis, S;Strasser, A;Grumont, RJ
通讯作者:
Grumont, RJ
影响因子:
4.4
作者:
FRANCIS, DA;KARRAS, JG;ROTHSTEIN, TL
通讯作者:
ROTHSTEIN, TL