DNA methylation arrays
Ontology highlight
ABSTRACT:
PROVIDER: EGAD00010002608 | EGA |
REPOSITORIES: EGA
Similar Datasets
Project description:Illumina Infinium Epic Human DNA Methylation Beadchip V1.2.8 The Illumina Infinium Epic Human DNA Methylation Beadchip V1.2.8 is used to obtain DNA methylation profiles of about 850k CpG in osteoarthritis and normal cells to find differences, approximately 850k CpGs in osteoarthritis and normal cell
2021-05-18 | GSE174525 | GEO
Project description:Genome wide DNA methylation profiling of nine breast HMECs samples (184AA3, 184AA2, 184AA4, 184A1, 184D, 184BE1, 184B5, 184B5ME, 184FMY2). The Illumina Infinium 850k Human DNA methylation Beadchip was used to obtain DNA methylation profiles across approximately 850,000 CpGs in nine breast HMECs samples.
2017-09-13 | GSE81939 | GEO
Project description:The Illumina Infinium EPIC/850k Human DNA methylation Beadchip was used to obtain DNA methylation profiles across approximately 850,000 CpGs in a total of 168 samples, 24 from females and 144 from males
2020-03-01 | GSE111631 | GEO
Project description:Illumina Infinium DNA Methylation (5mC) profiling arrays are a popular technology to measure genome-scale distribution of 5mC at low cost and high throughput, especially in cancer and other complex diseases. Following the success of the HumanMethylation450 array (450k), Illumina released the MethylationEPIC array (850k) featuring increased coverage of enhancers in addition to regulatory regions primarily covered by the 450k (i.e. promoters, gene bodies). Despite its widespread use, the analysis of 850k data remains suboptimal as it mostly still relies on Illumina’s default annotation, which underestimates enhancers and long noncoding RNAs (lncRNAs). We thus developed an approach, based on ENCODE and LNCipedia databases, that greatly improves Illumina’s default annotation of enhancers and long noncoding transcripts. Comparisons between the re-annotated 850k and its precursor, the 450k, or RRBS, another high-throughput 5mC profiling technology, revealed that the 850k covers at least three times more enhancers and lncRNAs than the other two technologies. We further investigated the reproducibility of the three technologies and applied various normalisation methods to 850k data, showing that most of them reduce variability to a level below that of RRBS. When analyzed with our new annotation and normalization pipeline, profiling for 5mC changes in breast cancer biopsies with the 850k highlighted aberrant enhancers methylation as the predominant feature, confirming previous reports. In conclusion, our study provides an updated analysis pipeline for 850k data based on a refined probe annotation and normalization that allows for the improved analysis of methylation at enhancers and long noncoding transcripts.
2022-11-11 | GSE198627 | GEO
Project description:Illumina Infinium DNA Methylation (5mC) profiling arrays are a popular technology to measure genome-scale distribution of 5mC at low cost and high throughput, especially in cancer and other complex diseases. Following the success of the HumanMethylation450 array (450k), Illumina released the MethylationEPIC array (850k) featuring increased coverage of enhancers in addition to regulatory regions primarily covered by the 450k (i.e. promoters, gene bodies). Despite its widespread use, the analysis of 850k data remains suboptimal as it mostly still relies on Illumina’s default annotation, which underestimates enhancers and long noncoding RNAs (lncRNAs). We thus developed an approach, based on ENCODE and LNCipedia databases, that greatly improves Illumina’s default annotation of enhancers and long noncoding transcripts. Comparisons between the re-annotated 850k and its precursor, the 450k, or RRBS, another high-throughput 5mC profiling technology, revealed that the 850k covers at least three times more enhancers and lncRNAs than the other two technologies. We further investigated the reproducibility of the three technologies and applied various normalisation methods to 850k data, showing that most of them reduce variability to a level below that of RRBS. When analyzed with our new annotation and normalization pipeline, profiling for 5mC changes in breast cancer biopsies with the 850k highlighted aberrant enhancers methylation as the predominant feature, confirming previous reports. In conclusion, our study provides an updated analysis pipeline for 850k data based on a refined probe annotation and normalization that allows for the improved analysis of methylation at enhancers and long noncoding transcripts.
2022-11-11 | GSE198626 | GEO
Project description:Genome-wide DNA methylation profiling of SETD2-null 786-0 RCC cells treated with decitabine (100nM and 300nM) or DMSO vehicle. The Illumina Infinium HumanMethylation EPIC BeadChip was used to obtain DNA methylation profiles across approximately 850K CpGs.
2024-07-01 | GSE223697 | GEO
Project description:Genome wide DNA methylation profiling of human normal and epileptic brain tissue. The Illumina Infinium 850K Human DNA methylation Beadchip was used to obtain DNA methylation profiles across approximately 850.000 CpGs in formalin-fixed paraffin-embedded surgical brain samples. Samples included 316 cases diagnosed with malformations of cortical development (MCD), non-MCD epilepsy or no-epilepsy autopsy controls.
2021-11-30 | GSE185090 | GEO
Project description:Genome wide DNA methylation profiling of peripheral blood samples from 41 children with simple obesity and 31 normal controls. The Illumina Infinium MethylationEPIC BeadChip (Illumina 850k, San Diego, CA) was used to obtain DNA methylation profiles across greater than 850,000 CpG sites across the genome. Samples included 31 normal and 41 obesity peripheral blood.
2023-01-03 | GSE221864 | GEO
Project description:DNA methylation profiling for 850k reannotation and normalization evaluation [850k]
| PRJNA816179 | ENA