Tuberous sclerosis 1 promotes invariant NKT cell anergy and inhibits invariant NKT cell-mediated antitumor immunity.
Tuberous sclerosis 1 promotes invariant NKT cell anergy and inhibits invariant NKT cell-mediated antitumor immunity.
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结节性硬化症 1 促进恒定 NKT 细胞无反应性并抑制恒定 NKT 细胞介导的抗肿瘤免疫。
DOI:
10.4049/jimmunol.1302076
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发表时间:
2014-03-15
期刊:
影响因子:
--
通讯作者:
Zhong XP
中科院分区:
文献类型:
--
作者:
Wu J;Shin J;Xie D;Wang H;Gao J;Zhong XP
Development of effective immune therapies for cancer patients requires better understanding of hurdles that prevent the generation of effective anti-tumor immune responses. Administration of α-galactosylceramide (α-GalCer) in animals enhances anti-tumor immunity via activation of the invariant natural killer T (iNKT) cells. However, repeated injections of α-GalCer result in long-term unresponsiveness or anergy of iNKT cells, severely limiting its efficacy in tumor eradication. The mechanisms leading to iNKT cell anergy remain poorly understood. We report here that the tuberous sclerosis 1 (TSC1), a negative regulator of mTOR signaling, plays a crucial role in iNKT cell anergy. Deficiency of TSC1 in iNKT cells results in resistance to α-GalCer-induced anergy, manifested by increased expansion of and cytokine production by iNKT cells in response to secondary antigen stimulation. It is correlated with impaired upregulation of PD-1, Egr2, and Grail. Moreover, TSC1-deficient iNKT cells display enhanced anti-tumor immunity in a melanoma lung metastasis model. Our data suggest targeting TSC1/2 as a strategy for boosting anti-tumor immune therapy.
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影响因子:
7.8
作者:
Kulpa DA;Lawani M;Cooper A;Peretz Y;Ahlers J;Sékaly RP
通讯作者:
Sékaly RP
影响因子:
8.6
作者:
Bontkes, Hetty J.;Moreno, Maria;Scheper, Rik J.
通讯作者:
Scheper, Rik J.
DOI:
10.1084/jem.20081297
发表时间:
2008-09-29
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Chen C;Liu Y;Liu R;Ikenoue T;Guan KL;Liu Y;Zheng P
通讯作者:
Zheng P
影响因子:
13.5
作者:
Deng, Zhong-Bin;Zhuang, Xiaoying;Ju, Songwen;Xiang, Xiaoyu;Mu, Jingyao;Wang, Qilong;Jiang, Hong;Zhang, Lifeng;Kronenberg, Mitchell;Yan, Jun;Miller, Donald;Zhang, Huang-Ge
通讯作者:
Zhang, Huang-Ge
影响因子:
30.5
作者:
Heissmeyer, V;Macián, F;Rao, A
通讯作者:
Rao, A