Differential expansion, activation and effector functions of conventional and plasmacytoid dendritic cells in mouse tissues transiently infected with Listeria monocytogenes
Differential expansion, activation and effector functions of conventional and plasmacytoid dendritic cells in mouse tissues transiently infected with Listeria monocytogenes
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单核细胞增生李斯特菌瞬时感染小鼠组织中常规树突状细胞和浆细胞样树突状细胞的差异扩增、激活和效应功能
DOI:
10.1111/j.1462-5822.2006.00700.x
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发表时间:
2006
影响因子:
3.4
通讯作者:
M. Wick
中科院分区:
文献类型:
--
作者:
Miguel A Tam;M. Wick
Dendritic cells (DC) are crucial in generating immunity to infection. Here we characterize changes in DC in terms of number, activation and effector functions, focusing on conventional DC (cDC) and plasmacytoid DC (pDC), in Listeria‐infected mice. Kinetic studies showed a subset‐ and tissue‐specific expansion of cDC and upregulation of CD80 and CD86 on splenic and mesenteric lymph node (MLN) cDC after intragastric infection. Expansion of pDC was more prolonged than cDC, and pDC upregulated CD86 and MHC‐II, but not CD80, in both the spleen and MLN. cDC were an important source of IL‐12 but not TNF‐α during infection, while pDC made neither of these cytokines. Instead other CD11cint cells produced these cytokines. Using five‐colour flow cytometry and double intracellular cytokine staining, we detected phenotypically similar CD11cintCD11b+Gr1+ cells with distinct capacities to produce TNF‐α/IL‐12 or TNF‐α/iNOS (inducible nitric oxide synthase) in Listeria‐infected tissues. IL‐12p70 was also produced by sorted CD11chi and CD11cintCD11b+Gr1+ cells. Furthermore, production of TNF‐α, iNOS and IL‐12 was differentially dependent on cellular localization of the bacteria. Cytosol‐restricted bacteria induced TNF‐α and iNOS‐producing cells, albeit at lower frequency than wild‐type bacteria. In contrast, IL‐12 was induced only with wild‐type bacteria. These data provide new insight into the relative abundance and function of distinct CD11c‐expressing populations during the early stage of Listeria infection.
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影响因子:
32.4
作者:
Jung, S;Unutmaz, D;Lang, RA
通讯作者:
Lang, RA
影响因子:
32.4
作者:
Serbina, NV;Salazar-Mather, TP;Pamer, EG
通讯作者:
Pamer, EG
DOI:
--
发表时间:
1995
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Miller,MA;Skeen,MJ;Ziegler,HK
通讯作者:
Ziegler,HK
影响因子:
32.4
作者:
Shiloh, MU;MacMicking, JD;Nathan, C
通讯作者:
Nathan, C
DOI:
--
发表时间:
1995
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Huleatt,JW;Lefrancois,L
通讯作者:
Lefrancois,L