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Glasmacher, E. ; Höfig, K.P. ; Vogel, K.U. ; Rath, N. ; Du, L. ; Wolf, C. ; Kremmer, E. ; Wang, X.* ; Heissmeyer, V.

Roquin binds inducible costimulator mRNA and effectors of mRNA decay to induce microRNA-independent post-transcriptional repression.

Nat. Immunol. 11, 725-733 (2010)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
The molecular mechanism by which roquin controls the expression of inducible costimulator (ICOS) to prevent autoimmunity remains unsolved. Here we show that in helper T cells, roquin localized to processing (P) bodies and downregulated ICOS expression. The repression was dependent on the RNA helicase Rck, and roquin interacted with Rck and the enhancer of decapping Edc4, which act together in mRNA decapping. Sequences in roquin that confer P-body localization were essential for roquin-mediated ICOS repression. However, this process did not require microRNAs or the RNA-induced silencing complex (RISC). Instead, roquin bound ICOS mRNA directly, showing an intrinsic preference for a previously unrecognized sequence in the 3' untranslated region (3' UTR). Our results support a model in which roquin controls ICOS expression through binding to the 3' UTR of ICOS mRNA and by interacting with proteins that confer post-transcriptional repression.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter 3' Untranslated Regions; Amino Acid Sequence; Animals; Antigens; Differentiation; T-Lymphocyte/genetics; Antigens; Differentiation; T-Lymphocyte/immunology*; Autoimmunity/genetics; Autoimmunity/immunology; CD4-Positive T-Lymphocytes/immunology; CD4-Positive T-Lymphocytes/metabolism; DEAD-box RNA Helicases/genetics; DEAD-box RNA Helicases/immunology*; Gene Expression Regulation; Mice; Mice; Mutant Strains; Mice; Transgenic; MicroRNAs/genetics*; MicroRNAs/immunology; Proto-Oncogene Proteins/genetics; Proto-On
Sprache englisch
Veröffentlichungsjahr 2010
HGF-Berichtsjahr 2010
ISSN (print) / ISBN 1529-2908
e-ISSN 1529-2916
Zeitschrift Nature Immunology
Quellenangaben Band: 11, Heft: 8, Seiten: 725-733 Artikelnummer: , Supplement: ,
Verlag Nature Publishing Group
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Molecular Immunology (IMI)
Institute of Diabetes and Obesity (IDO)
Institute of Diabetes and Regeneration Research (IDR)
Research Unit Molecular Immune Regulation (AMIR)
POF Topic(s)
30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
30502 - Diabetes: Pathophysiology, Prevention and Therapy
90000 - German Center for Diabetes Research
Forschungsfeld(er)
Immune Response and Infection
Helmholtz Diabetes Center
PSP-Element(e) G-551000-001
G-501700-003
G-501792-001
G-553100-001
G-501793-001
G-501900-232
PubMed ID 20639877
DOI 10.1038/ni.1902
WOS ID 000280149400014
Scopus ID 77954959530
Erfassungsdatum 2010-07-18
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