Regulatory T cells inhibit stable contacts between CD4+ T cells and dendritic cells in vivo.

Regulatory T (T reg) cells exert powerful down-modulatory effects on immune responses, but it is not known how they act in vivo. Using intravital two-photon laser scanning microscopy we determined that, in the absence of T reg cells, the locomotion of autoantigen-specific T cells inside lymph nodes...

وصف كامل

التفاصيل البيبلوغرافية
المؤلفون الرئيسيون: Tadokoro, C, Shakhar, G, Shen, S, Ding, Y, Lino, A, Maraver, A, Lafaille, J, Dustin, M
التنسيق: Journal article
اللغة:English
منشور في: 2006
الوصف
الملخص:Regulatory T (T reg) cells exert powerful down-modulatory effects on immune responses, but it is not known how they act in vivo. Using intravital two-photon laser scanning microscopy we determined that, in the absence of T reg cells, the locomotion of autoantigen-specific T cells inside lymph nodes is decreased, and the contacts between T cells and antigen-loaded dendritic cells (DCs) are of longer duration. Thus, T reg cells can exert an early effect on immune responses by attenuating the establishment of stable contacts during priming of naive T cells by DCs.