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XB-ART-43615
J Clin Invest 2009 Mar 01;1193:565-72. doi: 10.1172/JCI37865.
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Highly purified Th17 cells from BDC2.5NOD mice convert into Th1-like cells in NOD/SCID recipient mice.

Bending D , De la Peña H , Veldhoen M , Phillips JM , Uyttenhove C , Stockinger B , Cooke A .


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Th17 cells are involved in the pathogenesis of many autoimmune diseases, but it is not clear whether they play a pathogenic role in type 1 diabetes. Here we investigated whether mouse Th17 cells with specificity for an islet antigen can induce diabetes upon transfer into NOD/SCID recipient mice. Induction of diabetes in NOD/SCID mice via adoptive transfer of Th1 cells from BDC2.5 transgenic mice was prevented by treatment of the recipient mice with a neutralizing IFN-γ-specific antibody. This result suggested a major role of Th1 cells in the induction of disease in this model of type 1 diabetes. Nevertheless, transfer of highly purified Th17 cells from BDC2.5 transgenic mice caused diabetes in NOD/SCID recipients with similar rates of onset as in transfer of Th1 cells. However, treatment with neutralizing IL-17-specific antibodies did not prevent disease. Instead, the transferred Th17 cells, completely devoid of IFN-γ at the time of transfer, rapidly converted to secrete IFN-γ in the NOD/SCID recipients. Purified Th17 cells also upregulated Tbet and secreted IFN-γ upon exposure to IL-12 in vitro and in vivo in NOD/SCID recipients. These results indicate substantial plasticity of Th17 commitment toward a Th1-like profile.

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Species referenced: Xenopus
Genes referenced: atn1 tbx21

References [+] :
Annunziato, Phenotypic and functional features of human Th17 cells. 2007, Pubmed