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| Status |
Public on Jun 01, 2015 |
| Title |
Bacterial Infection Remodels the DNA Methylation Landscape of Human Dendritic Cells (ATAC-Seq) |
| Organism |
Homo sapiens |
| Experiment type |
Genome binding/occupancy profiling by high throughput sequencing
|
| Summary |
DNA methylation is an epigenetic mark thought to be robust to environmental perturbations on a short time scale. Here, we challenge that view by demonstrating that the infection of human dendritic cells with a live pathogenic bacteria is associated with rapid changes in methylation levels at thousands of loci. We performed an integrated analysis of data on genome-wide DNA methylation, histone mark patterns, chromatin accessibility, and gene expression, before and after infection. We found that infection-induced changes in methylation rarely occur at promoter regions and instead localize to distal enhancer elements. Active demethylation is associated with extensive epigenetic remodeling, including the gain of histone activation marks and the induction of enhancer RNAs, and is strongly predictive of changes in the expression levels of nearby genes. Collectively, our observations show that active, rapid changes in DNA methylation in enhancers play a previously unappreciated role in regulating the transcriptional response of immune cells to infection.
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| Overall design |
Chromatin accessibility profiles of one non-infected and one MTB-infected dendritic cell sample.
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| |
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| Contributor(s) |
Pacis A, Barreiro LB |
| Citation(s) |
26392366 |
| Submission date |
Dec 15, 2014 |
| Last update date |
May 15, 2019 |
| Contact name |
Alain Pacis |
| E-mail(s) |
alain.pacis@mcgill.ca
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| Organization name |
Canadian Centre for Computational Genomics (C3G)
|
| Street address |
740 Dr Penfield Ave
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| City |
Montreal |
| State/province |
QC |
| ZIP/Postal code |
H3A 0G1 |
| Country |
Canada |
| |
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| Platforms (1) |
| GPL16791 |
Illumina HiSeq 2500 (Homo sapiens) |
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| Samples (2) |
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| This SubSeries is part of SuperSeries: |
| GSE64183 |
Bacterial Infection Remodels the DNA Methylation Landscape of Human Dendritic Cells |
|
| Relations |
| BioProject |
PRJNA270813 |
| SRA |
SRP051364 |
