TBK-binding protein 1 regulates IL-15-induced autophagy and NKT cell survival.
TBK-binding protein 1 regulates IL-15-induced autophagy and NKT cell survival.
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DOI:
10.1038/s41467-018-05097-5
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发表时间:
2018-07-18
影响因子:
16.6
通讯作者:
Sun SC
中科院分区:
文献类型:
--
作者:
Zhu L;Xie X;Zhang L;Wang H;Jie Z;Zhou X;Shi J;Zhao S;Zhang B;Cheng X;Sun SC
The cytokine IL-15 mediates development and survival of immune cells, including natural killer T (NKT) cells, but the underlying mechanism of IL-15 function is incompletely understood. Here we show that IL-15 induces autophagy in NKT cells with a mechanism that involves a crucial signaling component, TBK-binding protein 1 (Tbkbp1). Tbkbp1 facilitates activation of the autophagy-initiating kinase Ulk1 through antagonizing the inhibitory action of mTORC1. This antagonization involves the recruitment of an mTORC1-opposing phosphatase to Ulk1. Tbkbp1 deficiency attenuates IL-15-stimulated NKT cell autophagy, and is associated with mitochondrial dysfunction, aberrant ROS production, defective Bcl2 expression and reduced NKT cell survival. Consequently, Tbkbp1-deficient mice have profound deficiency in NKT cells, especially IFN-γ-producing NKT1. We further show that Tbkbp1 regulates IL-15-stimulated autophagy and survival of NK cells. These findings suggest a mechanism of autophagy induction by IL-15, and establish Tbkbp1 as a regulator of NKT cell development and survival. Interleukin-15 (IL-15) regulates the homeostasis of many immune cell types, including natural killer T (NKT) cells, but the underlying mechanism is not completely clear. Here the authors analyse Tbkbp1-deficient mice and show that IL-15 induces Tbkbp1-dependent autophagy to modulate NKT survival.
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DOI:
10.1126/science.1196371
发表时间:
2011-01-28
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Egan DF;Shackelford DB;Mihaylova MM;Gelino S;Kohnz RA;Mair W;Vasquez DS;Joshi A;Gwinn DM;Taylor R;Asara JM;Fitzpatrick J;Dillin A;Viollet B;Kundu M;Hansen M;Shaw RJ
通讯作者:
Shaw RJ
影响因子:
21.3
作者:
通讯作者:
--
影响因子:
16
作者:
Ganley IG;Wong PM;Gammoh N;Jiang X
通讯作者:
Jiang X
DOI:
10.4049/jimmunol.1003965
发表时间:
2011-12-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Gordy LE;Bezbradica JS;Flyak AI;Spencer CT;Dunkle A;Sun J;Stanic AK;Boothby MR;He YW;Zhao Z;Van Kaer L;Joyce S
通讯作者:
Joyce S
影响因子:
5.5
作者:
Dickgreber, Nina;Farrand, Kathryn J.;Hermans, Ian F.
通讯作者:
Hermans, Ian F.