Dectin-2-dependent NKT cell activation and serotype-specific antibody production in mice immunized with pneumococcal polysaccharide vaccine.
Dectin-2-dependent NKT cell activation and serotype-specific antibody production in mice immunized with pneumococcal polysaccharide vaccine.
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DOI:
10.1371/journal.pone.0078611
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Kawakami K
中科院分区:
文献类型:
--
作者:
Miyasaka T;Akahori Y;Toyama M;Miyamura N;Ishii K;Saijo S;Iwakura Y;Kinjo Y;Miyazaki Y;Oishi K;Kawakami K
Although thymus-independent type 2 antigens generally do not undergo Ig class switching from IgM to IgG, pneumococcal polysaccharide vaccine (PPV) induces the production of serotype-specific IgG. How this happens remains unclear, however. In the present study, PPV immunization induced production of IgG as well as IgM specific for a serotype 3-pneumococcal polysaccharide in the sera of wild-type (WT) mice, but this phenomenon was significantly reduced in Dectin-2 knockout (KO) mice. Immunization with PPV caused IL-12p40 production in WT mice, but this response was significantly reduced in Dectin-2KO mice. Likewise, immunization with PPV activated natural killer T (NKT) cells in WT mice but not in Dectin-2KO mice. Furthermore, administration of α-galactosylceramide, recombinant (r)IL-12 or rIFN-γ improved the reduced IgG levels in Dectin-2KO mice, and treatment with neutralizing anti-IFN-γ mAb resulted in the reduction of IgG synthesis in PPV-immunized WT mice. Transfer of spleen cells from PPV-immunized WT mice conferred protection against pneumococcal infection on recipient mice, whereas this effect was cancelled when the transferred spleen cells were harvested from PPV-immunized Dectin-2KO mice. These results suggest that the detection of PPV antigens via Dectin-2 triggers IL-12 production, which induces IFN-γ synthesis by NKT cells and subsequently the production of serotype-specific IgG.
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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:
10.1038/nri2569
发表时间:
2009-07
期刊:
Nature reviews. Immunology
影响因子:
--
作者:
Geijtenbeek TB;Gringhuis SI
通讯作者:
Gringhuis SI
影响因子:
3.1
作者:
BRILES, DE;CRAIN, MJ;YOTHER, J
通讯作者:
YOTHER, J
DOI:
10.1073/pnas.0307124101
发表时间:
2004-01-06
影响因子:
11.1
作者:
Kang, YS;Kim, JY;Park, CG
通讯作者:
Park, CG
影响因子:
11.8
作者:
Johansson, Niclas;Kalin, Mats;Hedlund, Jonas
通讯作者:
Hedlund, Jonas