Role of UTX in Retinoic Acid Receptor-Mediated Gene Regulation in Leukemia
Author(s) -
Luciana Rocha-Viegas,
Raffaella Villa,
Arantxa Gutiérrez,
Oihana Iriondo,
Ramin Shiekhattar,
Luciano Di Croce
Publication year - 2014
Publication title -
molecular and cellular biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.14
H-Index - 327
eISSN - 1067-8824
pISSN - 0270-7306
DOI - 10.1128/mcb.00839-14
Subject(s) - biology , retinoic acid , histone h3 , retinoic acid receptor , histone methyltransferase , histone , histone methylation , retinoic acid receptor alpha , cancer research , retinoic acid receptor beta , retinoic acid inducible orphan g protein coupled receptor , retinoic acid receptor gamma , microbiology and biotechnology , biochemistry , dna methylation , gene expression , gene
Human UTX, a member of the Jumonji C family of proteins, associates with mixed-lineage leukemia 3/4 complexes. Stimulation with retinoic acid leads to the recruitment of UTX-containing complexes toHOX genes, which results in demethylation of histone H3 lysine 27 and concomitant methylation of histone H3 lysine 4. Here, we show that UTX interacts with the retinoic acid receptor α (RARα) and that this interaction is essential for proper differentiation of leukemic U937 cells in response to retinoic acid. UTX occupies the promoters of several RAR target genes and regulates their transcriptional output by modulating ASH2L complex recruitment. Overexpression of UTX in promyelocytic NB4 cells results in enhanced cellular differentiation upon retinoic acid treatment. Our results show that UTX is important for RAR-mediated transcription and provide insight into the critical role of cross talk between histone H3 lysine 4 methylation and histone H3 lysine 27 demethylation during cellular differentiation.
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