Project description:K562 cells (duplicate cultures A & B) are treated with 50 micromolar hemin for 0, 6, 12, 24, 48, 72 hours followed by RNA extraction and gene expression profiling on Affymetrix human U133A arrays and analysis by MAS 5.0
Project description:Inhibition of ARID3a by shRNA in hemin-induced K562 cells results in significant decrease of erythroid specific lineage factors and alpha-globin genes.
Project description:we profiled miRNA gene expression with the Illumina hybridization system in K562 cells induced by hemin and K562 cells with over-expressing or knocking-down GATA-1, EKLF or NF-E2 treatments. To find differential expression miRNAs, we profiled miRNA gene expression with the Illumina hybridization system in untreated, hemin-treated 48h and 72h K562 cells. To define GATA-1, EKLF or NF-E2 directly targeted miRNA genes, a comprehensive analysis of TF induced miRNA gene expression changes was performed using over-expressing or knocking-down TFs in K562 cells and illumina miRNA profiling Beadchip system.
Project description:The transcription factor GATA-1, EKLF and NF-E2 promotes erythroid differentition by regulating their target genes, however, the intricate interplays between these key TFs and microRNA genes are largely unknown. Chromatin immunoprecipitation (ChIP) of GATA-1, EKLF and NF-E2 together with microRNA genomic promoter profiling by ChIP-on-chip analysis demonstrated that GATA-1, EKLF and NF-E2 collaborately regulate a series of microRNA genes. Comparison of microRNA promoter arrays of GATA-1 VS EKLF VS NF-E2 in K562 cells suffering with hemin induced erythroid differentiation
Project description:This SuperSeries is composed of the following subset Series: GSE30380: Expression profile of hemin induced erythroid differentiation, over-expressing and knocking-down GATA-1, EKLF and NF-E2 in K562s GSE30808: ChIP-chip from 48h hemin induced K562 cells with GATA-1, EKLF, and NF-E2 antibodies Refer to individual Series
Project description:we profiled miRNA gene expression with the Illumina hybridization system in K562 cells induced by hemin and K562 cells with over-expressing or knocking-down GATA-1, EKLF or NF-E2 treatments.