Search results for "Methyl-CpG-binding domain"

showing 4 items of 4 documents

Stage 4S neuroblastoma tumors show a characteristic DNA methylation portrait

2016

Stage 4S neuroblastoma (NB) is a special type of NB found in infants with metastases at diagnosis and is associated with an excellent outcome due to its remarkable capacity to undergo spontaneous regression. As genomics have not been able to explain this intriguing clinical presentation, we here aimed at profiling the DNA methylome of stage 4S NB to better understand this phenomenon. To this purpose, differential methylation analyses between International Neuroblastoma Staging System (INSS) stage 4S, stage 4 and stage 1/2 were performed, using methyl-CpG-binding domain (MBD) sequencing data of 14 stage 4S, 14 stage 4, and 13 stage 1/2 primary NB tumors (all MYCN non-amplified in order not t…

0301 basic medicineCancer ResearchGenomicsBiologyspontaneous regressionneuroblastoma03 medical and health sciencesNeuroblastomaMedicine and Health SciencesmedicineEpigeneticsMolecular BiologyGenestage 4S (MS)GeneticsDNA methylationBiology and Life SciencesPromotermedicine.diseaseSubtelomere030104 developmental biologyDNA methylationStage 4S NeuroblastomaCancer researchmethyl-CpG-binding domain (MBD) sequencingResearch PaperEpigenetics
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Sex-specific windows for high mRNA expression of DNA methyltransferases 1 and 3A and methyl-CpG-binding domain proteins 2 and 4 in human fetal gonads

2006

DNA methyltransferases (DNMTs) and 5-methyl-CpG-binding domain proteins (MBDs) are involved in the acquisition of parent-specific epigenetic modifications in human male and female germ cells. Reverse Northern blot analyses demonstrated sex-specific differences in mRNA expression for the maintenance DNMT1 and the de novo DNMT3A in developing testis and ovary. In fetal testis DNMT1 and DNMT3A expression peaked in mitotically arrested spermatogonia around 21 weeks gestation. In fetal ovary transcriptional upregulation of DNMT1 and DNMT3A occurred during a very brief period at 16 weeks gestation, when the oocytes proceeded through meiotic prophase. Fetal gonads showed several fold higher DNMT3A…

DNA (Cytosine-5-)-Methyltransferase 1MaleMethyltransferaseEmbryonic DevelopmentGestational AgeOvaryBiologyGene Expression Regulation EnzymologicChromatin remodelingDNA Methyltransferase 3AFetal DevelopmentPregnancyTestisGeneticsmedicineHumansDNA (Cytosine-5-)-MethyltransferasesRNA MessengerEpigeneticsRegulation of gene expressionFetusReverse Transcriptase Polymerase Chain Reactionurogenital systemOvaryGene Expression Regulation DevelopmentalCell BiologyReverse northern blotMolecular biologyMethyl-CpG-binding domainCell biologyDNA-Binding Proteinsmedicine.anatomical_structureembryonic structuresFemaleTranscription FactorsDevelopmental BiologyMolecular Reproduction and Development
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Methyl-CpG-binding domain sequencing reveals a prognostic methylation signature in neuroblastoma

2016

Accurate assessment of neuroblastoma outcome prediction remains challenging. Therefore, this study aims at establishing novel prognostic tumor DNA methylation biomarkers. In total, 396 low- and high-risk primary tumors were analyzed, of which 87 were profiled using methyl-CpG-binding domain (MBD) sequencing for differential methylation analysis between prognostic patient groups. Subsequently, methylation-specific PCR (MSP) assays were developed for 78 top-ranking differentially methylated regions and tested on two independent cohorts of 132 and 177 samples, respectively. Further, a new statistical framework was used to identify a robust set of MSP assays of which the methylation score (i.e.…

EXPRESSIONMale0301 basic medicineGENESPROMOTERBIOMARKERSMedizinComputational biologyBiologyPHENOTYPEReal-Time Polymerase Chain ReactionCohort StudiesneuroblastomaNeuroblastoma03 medical and health sciencesPOOR-PROGNOSISSTRATIFICATIONNeuroblastomaMedicine and Health SciencesTumor Cells CulturedmedicineHumansNeoplasm StagingGeneticsDNA methylationBinding SitesComputational BiologyInfantDNADNA NeoplasmMethylationPrognosismedicine.diseaseMethyl-CpG-binding domain030104 developmental biologyDifferentially methylated regionsReal-time polymerase chain reactionRISK GROUPOncologyCpG siteSTAGE-4 NEUROBLASTOMADNA methylationbiomarkerBiomarker (medicine)CpG IslandsFemaleprognosisBiomarkersResearch PaperOncotarget
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Methyl-CpG-binding proteins

2000

CpG methylation, the most common epigenetic modification of vertebrate genomes, is primarily associated with transcriptional repression. MeCP2, MBD1, MBD2, MBD3 and MBD4 constitute a family of vertebrate proteins that share the methyl-CpG-binding domain (MBD). The MBD, consisting of about 70 residues, possesses a unique alpha/beta-sandwich structure with characteristic loops, and is able to bind single methylated CpG pairs as a monomer. All MBDs except MBD4, an endonuclease that forms a complex with the DNA mismatch-repair protein MLH1, form complexes with histone deacetylase. It has been established that MeCP2, MBD1 and MBD2 are involved in histone deacetylase-dependent repression and it i…

GeneticsTranscription GeneticChromosomal Proteins Non-HistoneMethyl-CpG-Binding Protein 2Molecular Sequence DataDNADNA MethylationBiologyBiochemistryProtein Structure TertiaryMethyl-CpG-binding domainDNA-Binding ProteinsRepressor ProteinsEpigenetics of physical exerciseHistone methyltransferaseDNA methylationHistone methylationHistone H2AAnimalsHumansHistone codeCpG IslandsAmino Acid SequenceGene SilencingCancer epigeneticsEuropean Journal of Biochemistry
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