MYB transcriptionally regulates the miR-155 host gene in chronic lymphocytic leukemia

. 2011 Apr 07 ; 117 (14) : 3816-25. [epub] 20110204

Jazyk angličtina Země Spojené státy americké Médium print-electronic

Typ dokumentu časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/pmid21296997
Odkazy

PubMed 21296997
DOI 10.1182/blood-2010-05-285064
PII: S0006-4971(20)45307-8
Knihovny.cz E-zdroje

Elevated levels of microRNA miR-155 represent a candidate pathogenic factor in chronic B-lymphocytic leukemia (B-CLL). In this study, we present evidence that MYB (v-myb myeloblastosis viral oncogene homolog) is overexpressed in a subset of B-CLL patients. MYB physically associates with the promoter of miR-155 host gene (MIR155HG, also known as BIC, B-cell integration cluster) and stimulates its transcription. This coincides with the hypermethylated histone H3K4 residue and spread hyperacetylation of H3K9 at MIR155HG promoter. Our data provide evidence of oncogenic activities of MYB in B-CLL that include its stimulatory role in MIR155HG transcription.

Citace poskytuje Crossref.org

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