Interleukin 12p40 is required for dendritic cell migration and T cell priming after Mycobacterium tuberculosis infection.

Interleukin 12p40 is required for dendritic cell migration and T cell priming after Mycobacterium tuberculosis infection.
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DOI:
10.1084/jem.20052545
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发表时间:
2006-07-10
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
Cooper AM
Cooper AM
中科院分区:
其他
文献类型:
--
作者:
Khader SA;Partida-Sanchez S;Bell G;Jelley-Gibbs DM;Swain S;Pearl JE;Ghilardi N;Desauvage FJ;Lund FE;Cooper AM

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Migration of dendritic cells (DCs) to the draining lymph node (DLN) is required for the activation of naive T cells. We show here that migration of DCs from the lung to the DLN after Mycobacterium tuberculosis (Mtb) exposure is defective in mice lacking interleukin (IL)-12p40. This defect compromises the ability of IL-12p40–deficient DCs to activate naive T cells in vivo; however, DCs that express IL-12p40 alone can activate naive T cells. Treatment of IL-12p40–deficient DCs with IL-12p40 homodimer (IL-12(p40)2) restores Mtb-induced DC migration and the ability of IL-12p40–deficient DCs to activate naive T cells. These data define a novel and fundamental role for IL-12p40 in the pathogen-induced activation of pulmonary DCs.
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