Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Whole-genome mapping of MEIS1, TET1, H3K4me2 and H3K27ac in P19.6 mouse embryonal carcinoma cells and P19.6 cells treated for 48 hours with all-trans retinoic acid

ABSTRACT: Enhancers are developmentally-controlled transcriptional regulatory regions whose activities are modulated through histone modifications or histone variant deposition. Here, we show by genome-wide mapping that the newly discovered DNA modification 5-hydroxymethylcytosine (5hmC) is dynamically associated with transcription factor binding to distal regulatory sites during neural differentiation of mouse P19 cells as well as during adipocyte differentiation of mouse 3T3-L1 cells. Functional annotation reveals that regions gaining 5hmC are associated with genes expressed either in neural tissues when P19 cells undergo neural differentiation or in adipose tissue when 3T3-L1 cells undergo adipocyte differentiation. Furthermore, distal regions gaining 5hmC together with H3K4me2 and H3K27ac in P19 cells behave as differentiation-dependent transcriptional enhancers. Identified regions are enriched in motifs for transcription factors regulating specific cell fates like Meis1 in P19 cells and PPARgamma in 3T3-L1 cells. Accordingly, a fraction of hydroxymethylated Meis1 sites were associated with a dynamic engagement of the 5mC hydroxylase Tet1. In addition, kinetic studies of cytosine hydroxymethylation of selected enhancers indicated that DNA hydroxymethylation is an early event of enhancer activation. Hence, acquisition of 5hmC in cell-specific distal regulatory regions may represent a major event of enhancer progression toward an active state and participate in selective activation of tissue-specific genes MEIS1 and H3K27ac genome-wide distributions were determined using ChIP-seq. Cells used in this study are P19.6 mouse embryonal carnicoma cells and P19.6 cells treated for 48 hours with 1M-BM-5M all-trans retinoic acid (RA). ChIP samples were done by SM-CM-)randour A.A. Libraries were prepared and sequenced by the IGBMC sequencing facility (Strasbourg, France) by an Illumina Genome Analyzer II.

ORGANISM(S): Mus musculus

SUBMITTER: Aurelien Serandour

PROVIDER: E-GEOD-33067 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Publications

Dynamic hydroxymethylation of deoxyribonucleic acid marks differentiation-associated enhancers.

Sérandour Aurélien A AA Avner Stéphane S Oger Frédérik F Bizot Maud M Percevault Frédéric F Lucchetti-Miganeh Céline C Palierne Gaëlle G Gheeraert Céline C Barloy-Hubler Frédérique F Péron Christine Le CL Madigou Thierry T Durand Emmanuelle E Froguel Philippe P Staels Bart B Lefebvre Philippe P Métivier Raphaël R Eeckhoute Jérôme J Salbert Gilles G

Nucleic acids research 20120622 17

Enhancers are developmentally controlled transcriptional regulatory regions whose activities are modulated through histone modifications or histone variant deposition. In this study, we show by genome-wide mapping that the newly discovered deoxyribonucleic acid (DNA) modification 5-hydroxymethylcytosine (5hmC) is dynamically associated with transcription factor binding to distal regulatory sites during neural differentiation of mouse P19 cells and during adipocyte differentiation of mouse 3T3-L1 ...[more]

PMID: 22730288

Similar Datasets

Project description:Enhancers are developmentally-controlled transcriptional regulatory regions whose activities are modulated through histone modifications or histone variant deposition. Here, we show by genome-wide mapping that the newly discovered DNA modification 5-hydroxymethylcytosine (5hmC) is dynamically associated with transcription factor binding to distal regulatory sites during neural differentiation of mouse P19 cells as well as during adipocyte differentiation of mouse 3T3-L1 cells. Functional annotation reveals that regions gaining 5hmC are associated with genes expressed either in neural tissues when P19 cells undergo neural differentiation or in adipose tissue when 3T3-L1 cells undergo adipocyte differentiation. Furthermore, distal regions gaining 5hmC together with H3K4me2 and H3K27ac in P19 cells behave as differentiation-dependent transcriptional enhancers. Identified regions are enriched in motifs for transcription factors regulating specific cell fates like Meis1 in P19 cells and PPARgamma in 3T3-L1 cells. Accordingly, a fraction of hydroxymethylated Meis1 sites were associated with a dynamic engagement of the 5mC hydroxylase Tet1. In addition, kinetic studies of cytosine hydroxymethylation of selected enhancers indicated that DNA hydroxymethylation is an early event of enhancer activation. Hence, acquisition of 5hmC in cell-specific distal regulatory regions may represent a major event of enhancer progression toward an active state and participate in selective activation of tissue-specific genes Genome-wide 5hmC distribution was determined using hMeDIP-seq. Cells used in this study are P19.6 mouse embryonal carnicoma cells and P19.6 cells treated for 48 hours with 1M-BM-5M all-trans retinoic acid (RA), as well as 3T3-L1 cells and 3T3-L1 derived adipocytes differentiated with dexamethasone, insulin and IBMX (differentiation cocktail - DC). Individual hMeDIP samples from P19.6 ord 3T3-L1 cells were pooled for library preparation. Libraries were prepared and sequenced at the IBL sequencing facility (Lille, France) with an Illumina Genome Analyser II.

Dataset Information

Whole-genome mapping of MEIS1, TET1, H3K4me2 and H3K27ac in P19.6 mouse embryonal carcinoma cells and P19.6 cells treated for 48 hours with all-trans retinoic acid

Publications

Dynamic hydroxymethylation of deoxyribonucleic acid marks differentiation-associated enhancers.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets