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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
ProteomicsMetabolic imprint of an intracellular pathogen drives histone hypermethylation and tunes the host transcriptional response to infection
Chlamydia trachomatis, an obligate intracellular bacterium, highjacks metabolites from the host cell to sustain its own growth. We provide evidence of global hypermethylation of the host proteome, including histones, during the late stages of infection and that histone hypermethylation is the result...
ORGANISM(S): Homo sapiens (Human) Chlamydia trachomatis serovar L2 (strain 434/Bu / ATCC VR-902B) 
2026-10-05 | PXD051857 | Pride
Intracellular pathogen Innate immunity Metabolites Histone demethylase Hypermethylation Chlamydia trachomatis Epigenetic 
TranscriptomicsGlobal DNA Hypermethylation in Down Syndrome Placenta [RNA-Seq]
We have performed genome-wide DNA methylation analysis at single base resolution and gene expression analysis, resulted in hypermethylation in all autosomes in DS samples, mediated by down-regulation of all three TET family genes, and down-regulation of REST/NRSF. Genes located on chr21 were up-regu...
ORGANISM(S): Homo sapiens 
2013-08-06 | E-GEOD-42142 | biostudies-arrayexpress
GenomicsGlobal DNA Hypermethylation in Down Syndrome Placenta [Bisulfite-Seq]
We have performed genome-wide DNA methylation analysis at single base resolution and gene expression analysis, resulted in hypermethylation in all autosomes in DS samples, mediated by down-regulation of all three TET family genes, and down-regulation of REST/NRSF. Genes located on chr21 were up-regu...
ORGANISM(S): Homo sapiens 
2013-08-06 | E-GEOD-42074 | biostudies-arrayexpress
TranscriptomicsLoss of TET2 in hematopoietic cells leads to DNA hypermethylation of active enhancers and induction of leukemogenesis (Affymetrix)
DNA methylation is tightly regulated throughout mammalian development and altered methylation patterns are a hallmark of cancer. The methylcytosine dioxygenase TET2 is frequently mutated in acute myeloid leukemia (AML) and has been suggested to protect CpG islands and promoters from aberrant methyla...
ORGANISM(S): Mus musculus 
2015-04-22 | E-GEOD-59586 | biostudies-arrayexpress
TranscriptomicsMitochondrial 12S hypermethylation in HeLa cells and A1555G cybrids
This dataset investigates the transcriptional effect of mitochondrial 12S rRNA hypermethylation, both by overexpressing the mitochondrial methyltransferase mtTFB1 in HeLa cells and by using A1555G cybrids, where the 12S rRNA is hypermethylated. HeLa cells overexpressing a methyltransferase-deficient...
ORGANISM(S): Homo sapiens 
2012-09-18 | E-GEOD-33780 | biostudies-arrayexpress
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
GenomicsFundamental differences in promoter CpG island DNA hypermethylation between human cancer and genetically engineered mouse models of cancer [RRBS]
Genetic and epigenetic alterations are essential for the initiation and progression of human cancer. We previously reported that primary human medulloblastomas showed extensive cancer-specific CpG island DNA hypermethylation in critical developmental pathways. To determine whether genetically engine...
ORGANISM(S): Mus musculus 
2013-10-10 | E-GEOD-45341 | biostudies-arrayexpress
TranscriptomicsHuman Aging-associated DNA Hypermethylation Occurs Preferentially at Bivalent Chromatin Domains
There is a growing realization that some aging-associated phenotypes/diseases have an epigenetic basis. Here we report the first genome-scale study of epigenomic dynamics during normal human aging. We identify aging-associated differentially methylated regions (aDMRs) in whole blood in a discovery c...
ORGANISM(S): Homo sapiens 
2010-06-24 | E-GEOD-20242 | biostudies-arrayexpress
TranscriptomicsHuman Aging-associated DNA Hypermethylation Occurs Preferentially at Bivalent Chromatin Domains
There is a growing realization that some aging-associated phenotypes/diseases have an epigenetic basis. Here we report the first genome-scale study of epigenomic dynamics during normal human aging. We identify aging-associated differentially methylated regions (aDMRs) in whole blood in a discovery c...
ORGANISM(S): Homo sapiens 
2010-06-24 | E-GEOD-20236 | biostudies-arrayexpress
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