Open AccessExpression profiling of ETO2‐regulated miRNAs in erythroid cells: Possible influence on miRNA abundance
Author(s) -
Fujiwara Tohru,
Okitsu Yoko,
Katsuoka Yuna,
Fukuhara Noriko,
Onishi Yasushi,
Ishizawa Kenichi,
Harigae Hideo
Publication year - 2013
Publication title -
febs open bio
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.718
H-Index - 31
ISSN - 2211-5463
DOI - 10.1016/j.fob.2013.10.004
Subject(s) - microrna , profiling (computer programming) , biology , gene expression profiling , microbiology and biotechnology , computational biology , gene silencing , cancer research , bioinformatics , gene expression , genetics , gene , computer science , operating system
ETO2 is a component of a protein complex containing master regulators of hematopoiesis, including GATA‐1 and SCL/TAL1, and also has RNA binding properties. Although ETO2 has been reported to repress GATA‐1 target genes through histone deacetylation of the target gene loci in erythroid cells, little is known about the contribution of ETO2 to microRNA (miRNA) regulation. Here, we conducted miRNA profiling in ETO2‐overexpressing and ETO2‐silenced K562 cells. The analysis suggests that ETO2 positively regulates the abundance of mature miRNAs, including miR‐21, miR‐29b and let‐7e. Our data suggest a novel mode of ETO2‐mediated target gene repression via effects on miRNA expression.