期刊
JOURNAL OF EXPERIMENTAL MEDICINE
卷 213, 期 4, 页码 605-619出版社
ROCKEFELLER UNIV PRESS
DOI: 10.1084/jem.20151289
关键词
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资金
- Japan Society for the Promotion of Science [26860328]
- Scientific Research on Innovative Areas [15H01256]
- Japanese Science and Technology Agency
- Japanese Ministry of Education, Culture, Sports, Science and Technology
- Kishimoto Foundation
- Grants-in-Aid for Scientific Research [26840020, 15H04736, 15H00813, 26860328] Funding Source: KAKEN
Balance in signal transducer and activator of transcription (STAT) activation is a key factor in regulating the fate of naive CD4(+) T cells. Here, we demonstrate that AT-rich interactive domain-containing protein 5a (Arid5a) in T cells directs naive CD4(+) T cells to differentiate into inflammatory CD4(+) T cells, especially Th17 cells, through selective stabilization of Stat3 (but not Stat1 and Stat5) mRNA in an IL-6-dependent manner. Loss of Arid5a in T cells led to reduction of STAT3 level under Th17-polarizing conditions, whereas STAT1 and STAT5 in Arid5a-deficient T cells were highly activated compared with those of WT T cells under the same conditions. These cells displayed the feature of antiinflammatory (II10-expressing) CD4(+) T cells. Thus, we show a T cell-intrinsic role of Arid5a on fate decisions of naive CD4(+) T cells through selective stabilization of Stat3 mRNA.
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