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Methylomic analysis identifies the involvement of migration and adhesion genes in the ageing of primary haematopoietic stem cells

ABSTRACT: we utilize Nano-MeDIP-seq for the analysis of the LT-HSC methylome and, for the first time, simultaneously interrogate the methylome and transcriptome of a homogeneous population of primary murine HSCs, in order to define the underlying causes of changes in HSC functionality during normal ageing.

ORGANISM(S): Mus musculus

PROVIDER: GSE41658 | GEO | 2013/11/01

SECONDARY ACCESSION(S): PRJNA177844

REPOSITORIES: GEO

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Project description:Genome-wide DNA methylation profile of human spermatozoa using the meDIP technique and massively parallel sequencing. DNA methylation is an indispensible epigenetic modification required for regulating the expression of mammalian genomes. Immunoprecipitation-based methods for DNA methylome analysis are rapidly shifting the bottleneck in this field from data generation to data analysis, necessitating the development of better analytical tools. In particular, an inability to estimate absolute methylation levels remains a major analytical difficulty associated with immunoprecipitation-based DNA methylation profiling. To address this issue, we developed a cross-platform algorithm-Bayesian tool for methylation analysis (Batman)-for analyzing methylated DNA immunoprecipitation (MeDIP) profiles generated using oligonucleotide arrays (MeDIP-chip) or next-generation sequencing (MeDIP-seq). We developed the latter approach to provide a high-resolution whole-genome DNA methylation profile (DNA methylome) of a mammalian genome. Strong correlation of our data, obtained using mature human spermatozoa, with those obtained using bisulfite sequencing suggest that combining MeDIP-seq or MeDIP-chip with Batman provides a robust, quantitative and cost-effective functional genomic strategy for elucidating the function of DNA methylation. ArrayExpress Release Date: 2008-06-10 Publication Title: A Bayesian deconvolution strategy for immunoprecipitation-based DNA methylome analysis Publication Author List: Thomas A Down; Vardhman K Rakyan; Daniel J Turner; Paul Flicek; Heng Li; Eugene Kulesha; Stefan GrÃ¤f; Nathan Johnson; Javier Herrero; Eleni M Tomazou; Natalie P Thorne; Liselotte BÃ¤ckdahl; Marlis Herberth; Kevin L Howe; David K Jackson; Marcos M Miretti; John C Marioni; Ewan Birney; Tim J P Hubbard; Richard Durbin; Simon TavarÃ©; Stephan Beck Person Roles: submitter; investigator Person Last Name: Flicek Person First Name: Paul Person Mid Initial Person Email: flicek@ebi.ac.uk Person Address: Wellcome Trust Genome Campus, Hinxton, Cambridge, CB10 1SD, UK Person Affiliation: European Bioinformatics Institute

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Methylomic analysis identifies the involvement of migration and adhesion genes in the ageing of primary haematopoietic stem cells

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