Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-35590
Irla, M; Küpfer, N; Suter, T; Lissilaa, R; Benkhoucha, M; Skupsky, J; Lalive, P H; Fontana, A; Reith, W; Hugues, S (2010). MHC class II-restricted antigen presentation by plasmacytoid dendritic cells inhibits T cell-mediated autoimmunity. Journal of Experimental Medicine, 207(9):1891-1905.
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Although plasmacytoid dendritic cells (pDCs) express major histocompatibility complex class II (MHCII) molecules, and can capture, process, and present antigens (Ags), direct demonstrations that they function as professional Ag-presenting cells (APCs) in vivo during ongoing immune responses remain lacking. We demonstrate that mice exhibiting a selective abrogation of MHCII expression by pDCs develop exacerbated experimental autoimmune encephalomyelitis (EAE) as a consequence of enhanced priming of encephalitogenic CD4(+) T cell responses in secondary lymphoid tissues. After EAE induction, pDCs are recruited to lymph nodes and establish MHCII-dependent myelin-Ag-specific contacts with CD4(+) T cells. These interactions promote the selective expansion of myelin-Ag-specific natural regulatory T cells that dampen the autoimmune T cell response. pDCs thus function as APCs during the course of EAE and confer a natural protection against autoimmune disease development that is mediated directly by their ability to present of Ags to CD4(+) T cells in vivo.
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|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||04 Faculty of Medicine > University Hospital Zurich > Clinic for Immunology
04 Faculty of Medicine > Institute of Experimental Immunology
|DDC:||570 Life sciences; biology
610 Medicine & health
|Deposited On:||05 Nov 2010 10:25|
|Last Modified:||27 Nov 2013 16:53|
|Publisher:||Rockefeller University Press|
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