Unknown,Transcriptomics,Genomics,Proteomics

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Hypermethylation of miR-34b is associated with CREB overexpression and Myeloid Cell Transformation


ABSTRACT: Increased CREB levels and upregulation of its target genes expression resulted in increased myelopoiesis and colony formation. Class comparison between MDS patients at diagnosis and evolution in AML

ORGANISM(S): Homo sapiens

SUBMITTER: silvia bresolin 

PROVIDER: E-GEOD-25300 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

MicroRNA-34b promoter hypermethylation induces CREB overexpression and contributes to myeloid transformation.

Pigazzi Martina M   Manara Elena E   Bresolin Silvia S   Tregnago Claudia C   Beghin Alessandra A   Baron Emma E   Giarin Emanuela E   Cho Er-Chieh EC   Masetti Riccardo R   Rao Dinesh S DS   Sakamoto Kathleen M KM   Basso Giuseppe G  

Haematologica 20121025 4


MicroRNA-34b down-regulation in acute myeloid leukemia was previously shown to induce CREB overexpression, thereby causing leukemia proliferation in vitro and in vivo. The role of microRNA-34b and CREB in patients with myeloid malignancies has never been evaluated. We examined microRNA-34b expression and the methylation status of its promoter in cells from patients diagnosed with myeloid malignancies. We used gene expression profiling to identify signatures of myeloid transformation. We establis  ...[more]

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