The kinase PKCα selectively upregulates interleukin-17A during Th17 cell immune responses.
The kinase PKCα selectively upregulates interleukin-17A during Th17 cell immune responses.
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在Th17细胞免疫反应期间,激酶PKCα有选择地上调白介素17a。
DOI:
10.1016/j.immuni.2012.09.021
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发表时间:
2013-01-24
期刊:
影响因子:
32.4
通讯作者:
Baier G
中科院分区:
文献类型:
--
作者:
Meisel M;Hermann-Kleiter N;Hinterleitner R;Gruber T;Wachowicz K;Pfeifhofer-Obermair C;Fresser F;Leitges M;Soldani C;Viola A;Kaminski S;Baier G
Transforming growth-factor β (TGFβ) has been implicated in T helper 17 (Th17) cell biology and in triggering expression of interleukin-17A (IL-17A), which is a key Th17 cell cytokine. Deregulated TGFβ receptor (TGFβR) signaling has been implicated in Th17-cell-mediated autoimmune pathogenesis. Nevertheless, the full molecular mechanisms involved in the activation of the TGFβR pathway in driving IL-17A expression remain unknown. Here, we identified protein kinase C α (PKCα) as a signaling intermediate specific to the Th17 cell subset in the activation of TGFβRI. We have shown that PKCα physically interacts and functionally cooperates with TGFβRI to promote robust SMAD2-3 activation. Furthermore, PKCα-deficient (Prkca−/−) cells demonstrated a defect in SMAD-dependent IL-2 suppression, as well as decreased STAT3 DNA binding within the Il17a promoter. Consistently, Prkca−/− cells failed to mount appropriate IL-17A, but not IL-17F, responses in vitro and were resistant to induction of Th17-cell-dependent experimental autoimmune encephalomyelitis in vivo. PKCα-deficient mice are resistant to EAE induction ► PKCα function is specific to the Th17 cell subset ► PKCα is a positive regulator of IL-17A transcription ► PKCα directly regulates TGFβRI-mediated phosphorylation of SMAD2-3
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影响因子:
15.9
作者:
Haak, Stefan;Croxford, Andrew L.;Waisman, Ari
通讯作者:
Waisman, Ari
影响因子:
64.5
作者:
Ivanov, Ivaylo I.;McKenzie, Brent S.;Littman, Dan R.
通讯作者:
Littman, Dan R.
DOI:
10.1186/1756-9966-29-104
发表时间:
2010-08-05
期刊:
Journal of experimental & clinical cancer research : CR
影响因子:
--
作者:
Chen Y;Yu G;Yu D;Zhu M
通讯作者:
Zhu M
影响因子:
64.8
作者:
Bettelli, E;Carrier, YJ;Kuchroo, VK
通讯作者:
Kuchroo, VK
影响因子:
20.3
作者:
Cejas, Pedro J.;Walsh, Matthew C.;Choi, Yongwon
通讯作者:
Choi, Yongwon