Identification of ETO2-GLIS2 transcriptional targets

ABSTRACT: Acute megakaryoblastic leukemia (AMKL) is a subtype of leukemia primarily diagnosed in childhood and generally associated with poor prognosis. Genetic alterations found in de novo childhood AMKL include the OTT-MAL fusion, MLL and NUP98 fusions and the recently identified ETO2-GLIS2 fusion that involves two transcriptional regulators. In order to identify ETO2-GLIS2 target genes, we performed two approaches: 1-Ectopic expression of ETO2-GLIS2, ETO2, GLIS2 and OTT-MAL in HEL cells, which does not endogenously express AMKL fusion oncogenes. Transduced cells marked by expression of the GFP were sorted by flow cytometry 24 hours after transduction and RNA was extracted with the Qiagen Rneasy kit including DNase treatment. 2-Expression of a small peptide (NC128), which interferes with the dimerization and cofactor recruitment by the ETO2-GLIS2 fusion, within MO7E cells derived from an AMKL patient and expressing endogenously the ETO2-GLIS2 fusion. Transduced cells marked by expression of the GFP were sorted by flow cytometry 7 days after transduction and RNA was extracted with the Qiagen Rneasy kit including DNase treatment. After quantification of biological replicates, and quality control (Bioanalyser, Agilent), RNA were hybridized on Agilent arrays as indicated below.

ORGANISM(S): Homo sapiens

SUBMITTER: Mercher Thomas 

PROVIDER: E-MTAB-4332 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress