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TranscriptomicsLeukemic IDH1 and IDH2 mutations result in a hypermethylation phenotype, disrupt TET2 function, and impair hematopoietic differentiation
Cancer-associated IDH mutations are characterized by neomorphic enzyme activity and resultant 2 hydroxyglutarate (2HG) production. Mutational and epigenetic profiling of a large AML patient cohort revealed that IDH1/2-mutant AMLs display global DNA hypermethylation and a specific hypermethylation si...
ORGANISM(S): Homo sapiens 
2010-12-03 | E-GEOD-24505 | biostudies-arrayexpress
TranscriptomicsH3K9acetyl ChIP on chip for integrative epigenomic study in leukemia samples
The molecular heterogeneity of acute leukemias and other tumors constitutes a major obstacle towards understanding disease pathogenesis and developing new targeted-therapies. Aberrant gene regulation is a hallmark of cancer and plays a central role in determining tumor phenotype. We predicted that ...
ORGANISM(S): Homo sapiens 
2010-05-22 | E-GEOD-10887 | biostudies-arrayexpress
TranscriptomicsGenome-wide DNA methylation in MDS/secondary AML and de novo AML
An increasing body of work reveals aberrant hypermethylation of genes occurring in and potentially contributing to the pathogenesis of myeloid malignancies. Several of these diseases, such as myelodysplastic syndromes (MDS), are responsive to DNA methyltransferase inhibitors. In order to determine ...
ORGANISM(S): Homo sapiens 
2010-05-15 | E-GEOD-17328 | biostudies-arrayexpress
GenomicsmethylSig: a whole genome DNA methylation analysis pipeline
DNA methylation plays critical roles in gene regulation and cellular specification without altering DNA sequences. The wide application of reduced representation bisulfite sequencing (RRBS) and whole genome bisulfite sequencing (bis-seq) opens the door to study DNA methylation at single CpG site re...
ORGANISM(S): Homo sapiens 
2014-08-22 | E-GEOD-55569 | biostudies-arrayexpress
TranscriptomicsComparsion of Smad1 and Smad5 Dependent Transcript Profiles in Zebrafish
The BMP signaling pathway regulates multiple steps of hematopoiesis, mediated through receptor-regulated Smads, including Smad1 and Smad5. Here we use loss-of-function approaches in zebrafish to compare the roles of Smad1 and Smad5 during embryonic hematopoiesis. Microarray experiments revealed that...
ORGANISM(S): Danio rerio 
2010-06-25 | E-GEOD-8903 | biostudies-arrayexpress
TranscriptomicsPromoter hypermethylation in MLL-r leukemia: biology and therapeutic targeting
MLL-r infant acute lymphoblastic leukemia (ALL) has largely unclear oncogenesis. It has been shown unrelated to copy number change or mutations in the tyrosine kinome. We therefore, explored the possible role of genome wide CpG island hypermethylation in MLL-r infant ALL. We employed the HpaII-ti...
ORGANISM(S): Homo sapiens 
2009-12-29 | E-GEOD-19671 | biostudies-arrayexpress
GenomicsThe ability of PML/RARα to initiate leukemia is associated with markedly increased proliferation of promyelocytes despite minor changes in the transcriptome and epigenome.
Acute Promyelocytic Leukemia is characterized by the accumulation in the blood and bone marrow of promyelocytes. The PML/RARα fusion protein is identified as the primary abnormality implicated in the pathology, and is believed to prevent transcription of genes necessary for normal myeloid developmen...
ORGANISM(S): Mus musculus 
2015-09-04 | E-GEOD-54038 | biostudies-arrayexpress
UnknownProlonged administration of azacitidine with or without entinostat for myelodysplastic syndrome and acute myeloid leukemia with myelodysplasia-related changes: results of the US Leukemia Intergroup trial E1905.
Not available
S-EPMC3986386 | biostudies-literature
TranscriptomicsSpecific molecular signatures underlie response to decitabine in CMML [RNA-seq]
Myelodysplastic syndromes and chronic myelomonocytic leukemia (CMML) are characterized by mutations in epigenetic modifiers and aberrant DNA methylation. DNA methyltransferase inhibitors (DMTis) are used to treat these disorders, but response is highly variable with few means to predict which patien...
ORGANISM(S): Homo sapiens 
2015-03-31 | E-GEOD-61162 | biostudies-arrayexpress
GenomicsSpecific molecular signatures underlie response to decitabine in CMML [ERRBS]
Myelodysplastic syndromes and chronic myelomonocytic leukemia (CMML) are characterized by mutations in epigenetic modifiers and aberrant DNA methylation. DNA methyltransferase inhibitors (DMTis) are used to treat these disorders, but response is highly variable with few means to predict which patien...
ORGANISM(S): Homo sapiens 
2015-03-31 | E-GEOD-61161 | biostudies-arrayexpress
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