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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
FOXP3 controls regulatory T cell function through cooperation with NFAT.
Cell 126, 375-387 (2006)
Antigen stimulation of immune cells activates the transcription factor NFAT, a key regulator of T cell activation and anergy. NFAT forms cooperative complexes with the AP-1 family of transcription factors and regulates T cell activation-associated genes. Here we show that regulatory T cell (Treg) function is mediated by an analogous cooperative complex of NFAT with the forkhead transcription factor FOXP3, a lineage specification factor for Tregs. The crystal structure of an NFAT:FOXP2:DNA complex reveals an extensive protein-protein interaction interface between NFAT and FOXP2. Structure-guided mutations of FOXP3, predicted to progressively disrupt its interaction with NFAT, interfere in a graded manner with the ability of FOXP3 to repress expression of the cytokine IL2, upregulate expression of the Treg markers CTLA4 and CD25, and confer suppressor function in a murine model of autoimmune diabetes. Thus by switching transcriptional partners, NFAT converts the acute T cell activation program into the suppressor program of Tregs.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
ISSN (print) / ISBN
0092-8674
e-ISSN
1097-4172
Zeitschrift
Cell
Quellenangaben
Band: 126,
Heft: 2,
Seiten: 375-387
Verlag
Cell Press
Verlagsort
Cambridge, Mass.
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed