Methylation profiling

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DNA Methylation Changes in Lung Immune Cells are Associated with Granulomatous Lung Disease [CBD Methylation]


ABSTRACT: The goal of this study was to investigate and correlate differential methylation and expression in cells from the target organ in non-infectious granulomatous lung diseases, specifically sarcoidosis and chronic beryllium disease (CBD). To that end, cells were collected from patients via bronchoalveolar lavage (BAL), and extracted nucleic acids were hybridized to genome-wide arrays. We conclude that there are many genes that are both differentially methylated and expressed in the BAL fluid of patients with granulomatous lung disease. We identified 2,726 differentially methylated CpGs mapping to 1,944 unique genes when comparing CBD patients to beryllium-sensitized (BeS) individuals without disease. 69% of these genes were also differentially expressed in CBD. Sarcoidosis patients exhibited directional consistency at many loci, but genome-wide significance was not achieved, likely due to heterogeneity in the patient population.

ORGANISM(S): Homo sapiens

PROVIDER: GSE110778 | GEO | 2018/12/05

REPOSITORIES: GEO

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