Abstract:
:The transcription factor Foxp3 is essential for the development of regulatory T (Treg) cells, yet its expression is insufficient for establishing the Treg cell lineage. Here we showed that Treg cell development was achieved by the combination of two independent processes, i.e., the expression of Foxp3 and the establishment of Treg cell-specific CpG hypomethylation pattern. Both events were induced by T cell receptor stimulation. The Treg cell-type CpG hypomethylation began in the thymus and continued to proceed in the periphery and could be fully established without Foxp3. The hypomethylation was required for Foxp3(+) T cells to acquire Treg cell-type gene expression, lineage stability, and full suppressive activity. Thus, those T cells in which the two events have concurrently occurred are developmentally set into the Treg cell lineage. This model explains how Treg cell fate and plasticity is controlled and can be exploited to generate functionally stable Treg cells.
journal_name
Immunityjournal_title
Immunityauthors
Ohkura N,Hamaguchi M,Morikawa H,Sugimura K,Tanaka A,Ito Y,Osaki M,Tanaka Y,Yamashita R,Nakano N,Huehn J,Fehling HJ,Sparwasser T,Nakai K,Sakaguchi Sdoi
10.1016/j.immuni.2012.09.010subject
Has Abstractpub_date
2012-11-16 00:00:00pages
785-99issue
5eissn
1074-7613issn
1097-4180pii
S1074-7613(12)00457-8journal_volume
37pub_type
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