Epigenome wide association study of response to methotrexate in early rheumatoid arthritis patients.

ABSTRACT:

Aim

To identify differentially methylated positions (DMPs) and regions (DMRs) that predict response to Methotrexate (MTX) in early rheumatoid arthritis (RA) patients.

Materials and methods

DNA from baseline peripheral blood mononuclear cells was extracted from 72 RA patients. DNA methylation, quantified using the Infinium MethylationEPIC, was assessed in relation to response to MTX (combination) therapy over the first 3 months.

Results

Baseline DMPs associated with response were identified; including hits previously described in RA. Additionally, 1309 DMR regions were observed. However, none of these findings were genome-wide significant. Likewise, no specific pathways were related to response, nor could we replicate associations with previously identified DMPs.

Co

SUBMITTER: Gosselt HR 

PROVIDER: S-EPMC7946177 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature