Lysosomal alpha-galactosidase controls the generation of self lipid antigens for natural killer T cells.
Lysosomal alpha-galactosidase controls the generation of self lipid antigens for natural killer T cells.
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DOI:
10.1016/j.immuni.2010.08.003
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发表时间:
2010-08-27
期刊:
影响因子:
32.4
通讯作者:
Winau F
中科院分区:
文献类型:
--
作者:
Darmoise A;Teneberg S;Bouzonville L;Brady RO;Beck M;Kaufmann SH;Winau F
Natural Killer T (NKT) cells are lipid-reactive, CD1d-restricted T lymphocytes important in infection, cancer, and autoimmunity. In addition to foreign antigens, NKT cells react with endogenous self lipids. However, in the face of stimulating self antigen, it remains unclear how overstimulation of NKT cells is avoided. We hypothesized that constantly degraded endogenous antigen only accumulates upon inhibition of α-galactosidase A (α-Gal-A) in lysosomes. Here, we show that α-Gal-A deficiency caused vigorous activation of NKT cells. Moreover, microbes induced inhibition of α-Gal-A activity in antigen-presenting cells. This temporary enzyme block depended on Toll-like receptor (TLR) signaling and ultimately triggered lysosomal lipid accumulation. Thus, we present TLR-dependent negative regulation of α-Gal-A as a mechanistic link between pathogen recognition and self lipid antigen induction for NKT cells.
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影响因子:
4.4
作者:
Li Y;Thapa P;Hawke D;Kondo Y;Furukawa K;Furukawa K;Hsu FF;Adlercreutz D;Weadge J;Palcic MM;Wang PG;Levery SB;Zhou D
通讯作者:
Zhou D
DOI:
10.1084/jem.192.5.741
发表时间:
2000-09-04
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Matsuda JL;Naidenko OV;Gapin L;Nakayama T;Taniguchi M;Wang CR;Koezuka Y;Kronenberg M
通讯作者:
Kronenberg M
DOI:
10.1084/jem.20060921
发表时间:
2006-10-02
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Gadola SD;Silk JD;Jeans A;Illarionov PA;Salio M;Besra GS;Dwek R;Butters TD;Platt FM;Cerundolo V
通讯作者:
Cerundolo V
影响因子:
4.4
作者:
Dimasi, N;Moretta, L;Biassoni, R
通讯作者:
Biassoni, R
影响因子:
30.5
作者:
Kinjo, Yuki;Tupin, Emmanuel;Kronenberg, Mitchell
通讯作者:
Kronenberg, Mitchell