IL-2-dependent tuning of NK cell sensitivity for target cells is controlled by regulatory T cells.
IL-2-dependent tuning of NK cell sensitivity for target cells is controlled by regulatory T cells.
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DOI:
10.1084/jem.20122462
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发表时间:
2013-06-03
期刊:
影响因子:
--
通讯作者:
Rudensky AY
中科院分区:
文献类型:
--
作者:
Gasteiger G;Hemmers S;Firth MA;Le Floc'h A;Huse M;Sun JC;Rudensky AY
IL-2–dependent adaptive-innate lymphocyte cross talk tunes NK cell reactivity and is limited by T reg cells. The emergence of the adaptive immune system took a toll in the form of pathologies mediated by self-reactive cells. Regulatory T cells (T reg cells) exert a critical brake on responses of T and B lymphocytes to self- and foreign antigens. Here, we asked whether T reg cells are required to restrain NK cells, the third lymphocyte lineage, whose features combine innate and adaptive immune cell properties. Although depletion of T reg cells led to systemic fatal autoimmunity, NK cell tolerance and reactivity to strong activating self- and non-self–ligands remained largely intact. In contrast, missing-self responses were increased in the absence of T reg cells as the result of heightened IL-2 availability. We found that IL-2 rapidly boosted the capacity of NK cells to productively engage target cells and enabled NK cell responses to weak stimulation. Our results suggest that IL-2–dependent adaptive-innate lymphocyte cross talk tunes NK cell reactivity and that T reg cells restrain NK cell cytotoxicity by limiting the availability of IL-2.
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DOI:
10.4049/jimmunol.1102710
发表时间:
2012-05-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Horowitz A;Hafalla JC;King E;Lusingu J;Dekker D;Leach A;Moris P;Cohen J;Vekemans J;Villafana T;Corran PH;Bejon P;Drakeley CJ;von Seidlein L;Riley EM
通讯作者:
Riley EM
影响因子:
30.5
作者:
Horng, Tiffany;Bezbradica, Jelena S.;Medzhitov, Ruslan
通讯作者:
Medzhitov, Ruslan
影响因子:
16.8
作者:
Elliott JM;Yokoyama WM
通讯作者:
Yokoyama WM
影响因子:
29.7
作者:
Josefowicz SZ;Lu LF;Rudensky AY
通讯作者:
Rudensky AY
影响因子:
7.3
作者:
Gasteiger G;Kastenmuller W
通讯作者:
Kastenmuller W