Journal
NATURE IMMUNOLOGY
Volume 10, Issue 7, Pages 689-695Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ni.1760
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Funding
- US National Institutes of Health [R01-AI051530]
- Juvenile Diabetes Research Foundation [4-2007-1057]
- German Research Foundation [FE 801/1-1]
- Charles A. King Fund
- Canadian Institutes of Health Research
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Regulatory T cells (T-reg cells) characterized by expression of the transcription factor Foxp3 play a key role in immune homeostasis. Rather than a monomorphic population strictly determined by Foxp3 as a 'master regulator', the emerging view is one of T-reg cells as a population with many levels of complexity. Several regulatory factors partake in the control of their transcriptional 'signature', with Foxp3 being a key regulator but insufficient and unnecessary to specify all aspects of the lineage. Distinct subphenotypes of Foxp3(+) T-reg cells are found in different anatomical locations. Some subphenotypes specifically control different facets of effector T cell function and, perhaps surprisingly, share transcriptional control elements with the very cells they regulate. This review will focus on these novel aspects of T-reg cell diversity.
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