Cutting edge: impaired MHC class I expression in mice deficient for Nlrc5/class I transactivator.
Cutting edge: impaired MHC class I expression in mice deficient for Nlrc5/class I transactivator.
复制标题
DOI:
10.4049/jimmunol.1200064
复制
发表时间:
2012-07-15
期刊:
影响因子:
--
通讯作者:
Kobayashi KS
中科院分区:
文献类型:
--
作者:
Biswas A;Meissner TB;Kawai T;Kobayashi KS
MHC class I and class II are crucial for the adaptive immune system. Although regulation of MHC class II expression by CIITA (class II transactivator) has long been recognized, the mechanism of MHC class I transactivation has been largely unknown until the recent discovery of NLRC5/CITA. Here we show using Nlrc5-deficient mice that NLRC5 is required for both constitutive and inducible MHC class I expression. Loss of Nlrc5 resulted in severe reduction in the expression of MHC class I and related genes such as β2m, Tap1 or Lmp2 but did not affect MHC class II levels. IFN-γ stimulation could not overcome the impaired MHC class I expression in Nlrc5-deficient cells. Upon infection with Listeria monocyogenes, Nlrc5-deficient mice displayed impaired CD8+ T cell activation, accompanied with increased bacterial loads. These illustrate critical roles of NLRC5/CITA in MHC class I gene regulation and host defense by CD8+ T cell responses.
登录
查看更多内容
DOI:
10.4049/jimmunol.1003111
发表时间:
2011-02-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Davis BK;Roberts RA;Huang MT;Willingham SB;Conti BJ;Brickey WJ;Barker BR;Kwan M;Taxman DJ;Accavitti-Loper MA;Duncan JA;Ting JP
通讯作者:
Ting JP
影响因子:
4.4
作者:
Benko, Szilvia;Magalhaes, Joao G.;Girardin, Stephen E.
通讯作者:
Girardin, Stephen E.
影响因子:
32.4
作者:
Gobin, SJP;Peijnenburg, A;vandenElsen, PJ
通讯作者:
vandenElsen, PJ
影响因子:
32.4
作者:
Martin, BK;Chin, KC;Ting, JPY
通讯作者:
Ting, JPY
DOI:
10.1073/pnas.1008684107
发表时间:
2010-08-03
影响因子:
11.1
作者:
Meissner, Torsten B.;Li, Amy;Kobayashi, Koichi S.
通讯作者:
Kobayashi, Koichi S.