Garbi, N; Hämmerling, G J; Probst, H C; van den Broek, M (2010). Tonic T cell signalling and T cell tolerance as opposite effects of self-recognition on dendritic cells. Current Opinion in Immunology, 22(5):601-608.
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Naive T cells spend most of their time scanning the surface of dendritic cells (DCs), indicating that self-MHC/T cell receptor (TCR) interactions between these immune cells occur routinely in peripheral organs during the steady state. Peripheral self-MHC recognition on DCs drives seemingly opposing effects in the absence of inflammatory stimuli such as deletion of certain self-reactive T cells as well as maintenance of the T cell responsiveness to antigen, both of which shape the T cell repertoire and regulate T cell responses. Here we review recent data on the role of self-MHC recognition on steady-state DCs in the periphery and propose that interactions between T cells and steady-state DCs display an analogy with selection processes that occur in the thymus: high affinity TCR/self-MHC interactions in the periphery result in T cell deletion, while low/intermediate affinity interactions result in tonic TCR signalling that is required to keep T cells responsive to antigen.
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||04 Faculty of Medicine > University Hospital Zurich > Clinic for Oncology|
|DDC:||610 Medicine & health|
|Deposited On:||18 Jan 2011 11:18|
|Last Modified:||27 Nov 2013 20:51|
|Citations:||Web of Science®. Times Cited: 12|
Scopus®. Citation Count: 14
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