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Genome-wide resolution peripheral blood methylome profiling reveals signatures for cholestatic liver disease.


ABSTRACT: Aim: To profile DNA methylation changes of primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC). Materials & methods: Patients with: PBC, PSC with inflammatory bowel disease (IBD), PSC without IBD, and age-, sex-matched controls were profiled for methylomes of peripheral blood by reduced representation bisulfite sequencing. Differentially methylated CpG (DMC) and differentially methylated region (DMR) were detected and compared. Results: We identified consistently altered DMCs and DMRs across diseases with involvement in key pathways. Many similarities noted between two subtypes of PSC, interestingly few existed between PBC and PSC. DMRs were highly enriched with transcription factor binding. Top DMC changes were validated in liver tissue of an independent cohort. Conclusion: Methylome profiling provides insights to PBC and PSC.

SUBMITTER: Moore RM 

PROVIDER: S-EPMC7506472 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Genome-wide resolution peripheral blood methylome profiling reveals signatures for cholestatic liver disease.

Moore Raymond M RM   Sun Zhifu Z   Juran Brian D BD   Lazaridis Konstantinos N KN  

Epigenomics 20200801 16


<b>Aim:</b> To profile DNA methylation changes of primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC). <b>Materials & methods:</b> Patients with: PBC, PSC with inflammatory bowel disease (IBD), PSC without IBD, and age-, sex-matched controls were profiled for methylomes of peripheral blood by reduced representation bisulfite sequencing. Differentially methylated CpG (DMC) and differentially methylated region (DMR) were detected and compared. <b>Results:</b> We identified c  ...[more]

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