MicroRNA-155 promotes autoimmune inflammation by enhancing inflammatory T cell development.
MicroRNA-155 promotes autoimmune inflammation by enhancing inflammatory T cell development.
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DOI:
10.1016/j.immuni.2010.09.009
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发表时间:
2010-10-29
期刊:
影响因子:
32.4
通讯作者:
Baltimore D
中科院分区:
文献类型:
--
作者:
O'Connell RM;Kahn D;Gibson WS;Round JL;Scholz RL;Chaudhuri AA;Kahn ME;Rao DS;Baltimore D
Mammalian non-coding micro RNAs (miRNAs) are a class of gene regulators that have been linked to immune system function. Here, we have investigated the role of miR-155 during an autoimmune inflammatory disease. Consistent with a positive role for miR-155 in mediating inflammatory responses, Mir155−/− mice were highly resistant to experimental autoimmune encephalomyelitis (EAE). miR-155 functions in the hematopoietic compartment to promote the development of inflammatory T cells including the T helper 17 (Th17) cell and Th1 cell subsets. Furthermore, the major contribution of miR-155 to EAE was CD4+ T cell intrinsic, whereas miR-155 was also required for optimum dendritic cell production of cytokines that promoted Th17 cell formation. Our study shows that one aspect of miR-155 function is the promotion of T cell-dependent tissue inflammation, suggesting that miR-155 might be a promising therapeutic target for the treatment of autoimmune disorders.
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