The metabolic checkpoint kinase mTOR is essential for IL-15 signaling during the development and activation of NK cells.
The metabolic checkpoint kinase mTOR is essential for IL-15 signaling during the development and activation of NK cells.
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作者:
Interleukin-15 (IL-15) controls both the homeostasis and the peripheral activation of Natural Killer (NK) cells. The molecular basis for this duality of action remains unknown. Here we report that the metabolic checkpoint kinase mTOR is activated and boosts bioenergetic metabolism upon NK cell exposure to high concentrations of IL-15 whereas low doses of IL-15 only triggers the phosphorylation of the transcription factor STAT5. mTOR stimulates NK cell growth and nutrient uptake and positively feeds back onto the IL-15 receptor. This process is essential to sustain NK cell proliferation during development and acquisition of cytolytic potential upon inflammation or virus infection. The mTORC1 inhibitor rapamycin inhibits NK cell cytotoxicity both in mouse and human, which likely contribute to the immunosuppressant activities of this drug in different clinical settings.
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影响因子:
64.5
作者:
Chang CH;Curtis JD;Maggi LB Jr;Faubert B;Villarino AV;O'Sullivan D;Huang SC;van der Windt GJ;Blagih J;Qiu J;Weber JD;Pearce EJ;Jones RG;Pearce EL
通讯作者:
Pearce EL
DOI:
10.4049/jimmunol.1201837
发表时间:
2013-01-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Clinthorne JF;Beli E;Duriancik DM;Gardner EM
通讯作者:
Gardner EM
影响因子:
20.3
作者:
Eckelhart, Eva;Warsch, Wolfgang;Sexl, Veronika
通讯作者:
Sexl, Veronika
影响因子:
7.3
作者:
Marçais A;Viel S;Grau M;Henry T;Marvel J;Walzer T
通讯作者:
Walzer T
DOI:
10.1084/jem.191.5.771
发表时间:
2000-03-06
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Kennedy MK;Glaccum M;Brown SN;Butz EA;Viney JL;Embers M;Matsuki N;Charrier K;Sedger L;Willis CR;Brasel K;Morrissey PJ;Stocking K;Schuh JC;Joyce S;Peschon JJ
通讯作者:
Peschon JJ