IL-4-Secreting NKT Cells Prevent Hypersensitivity Pneumonitis by Suppressing IFN-γ-Producing Neutrophils1
IL-4-Secreting NKT Cells Prevent Hypersensitivity Pneumonitis by Suppressing IFN-γ-Producing Neutrophils1
复制标题
分泌 IL-4 的 NKT 细胞通过抑制产生 IFN-γ 的中性粒细胞来预防过敏性肺炎1
作者:
S. Hwang;Sanghee Kim;W. Park;D. Chung
Hypersensitivity pneumonitis (HP) is mediated by Th1 immune response. NKT cells regulate immune responses by modulating the Th1/Th2 balance. Therefore, we postulated that NKT cells play a critical role in the development of the HP by modulating the Th1/Th2 response. To address this issue, we explored the functional roles of NKT cells in Saccharopolyspora rectivirgula (SR)-induced HP. In CD1d−/− mice, the HP was worse in terms of histological changes, hydroxyproline levels, the CD4:CD8 ratio in bronchoalveolar lavage fluid, and SR-specific immune responses than in control mice. CD1d−/− mice showed elevated IFN-γ production in the lung during the HP, and this was produced mainly by Gr-1+ neutrophils. The blockade of IFN-γ in CD1d−/− mice attenuated the HP, whereas the injection of rIFN-γ aggravated it. Moreover, the depletion of Gr-1+ neutrophils reduced CD8+ T cell numbers in bronchoalveolar lavage fluid during the HP. The adoptive transfer of IL-4−/− mouse NKT cells did not attenuate the HP, whereas wild-type or IFN-γ−/− mouse NKT cells suppressed the HP. In conclusion, NKT cells producing IL-4 play a protective role in SR-induced HP by suppressing IFN-γ-producing neutrophils, which induce the activation and proliferation of CD8+ T cells in the lung.
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影响因子:
32.4
作者:
Mendiratta, SK;Martin, WD;VanKaer, L
通讯作者:
VanKaer, L
影响因子:
4.4
作者:
Gunnar Gudmundsson;M. Monick;G. Hunninghake
通讯作者:
Gunnar Gudmundsson;M. Monick;G. Hunninghake
影响因子:
4.4
作者:
Gunnar Gudmundsson;M. Monick;G. Hunninghake
通讯作者:
Gunnar Gudmundsson;M. Monick;G. Hunninghake
DOI:
10.1165/ajrcmb.19.5.3153
发表时间:
1998-11-01
影响因子:
6.4
作者:
Gudmundsson, G;Bosch, A;Hunninghake, GW
通讯作者:
Hunninghake, GW
DOI:
10.1067/mlc.2000.107694
发表时间:
2000-07
期刊:
The Journal of laboratory and clinical medicine
影响因子:
--
作者:
Mark Schuyler;K. Gott;A. Cherne
通讯作者:
Mark Schuyler;K. Gott;A. Cherne