Department of Applied Biological Chemistry, The University of Tokyo, Yayoi, Bunkyo-ku, Tokyo, Japan.
Cytotechnology. 2002 Nov;40(1-3):31-8. doi: 10.1023/A:1023949620172.
We investigated the role of Peyer's patch (PP) dendritic cells (DCs) in the production of interferon (IFN)-gamma from naïve CD4(+) T cells of T cell receptor transgenic mice. PP DCs were found to prime naïve CD4(+) T cells for the production of higher levels of IFN-gamma, when compared to spleen (SP) DCs. However, a similar level of interleukin-12 (IL-12) production was observed for PP and SP DCs stimulated via the CD40 molecule. In addition, PP DCs expressed slightly higher levels of B7.2 (CD86) compared to SP DCs. This data demonstrates that PP DCs have a distinct function in the induction of IFN-gammas and suggests that PP DCs may enhance IFN-gamma production via another cytokine or costimulatory molecule, in addition to IL-12.
我们研究了派尔集合淋巴结(PP)树突状细胞(DC)在产生干扰素(IFN)-γ中的作用,这些细胞来自于 T 细胞受体转基因小鼠的幼稚 CD4(+)T 细胞。与脾(SP)DC 相比,PP DC 能够刺激幼稚 CD4(+)T 细胞产生更高水平的 IFN-γ。然而,对于通过 CD40 分子刺激的 PP 和 SP DC,观察到类似水平的白细胞介素-12(IL-12)产生。此外,PP DC 表达的 B7.2(CD86)比 SP DC 略高。这些数据表明 PP DC 在诱导 IFN-γ的产生方面具有独特的功能,并表明除了 IL-12 之外,PP DC 可能通过另一种细胞因子或共刺激分子增强 IFN-γ的产生。