DNA from 154 samples (from 78 resting CD4+ and 76 resting CD8+ T cells, Additional file 2: Table S1 and Additional file 1: Fig. S3) was sent to the SNP&SEQ-technology platform at SciLifeLab (Uppsala University, Uppsala, Sweden). Only 6 samples were available BP in MS and due to insufficient amount of material, samples were also missing for two time points in CD8+ in MS (Additional file 2: Table S1 and Additional file 1: Fig. S3). Bisulfite conversion was performed using the EZ DNA Methylation™ Kit (Zymo Research) with 250 ng of DNA per sample as input. The bisulfite converted DNA was eluted in 15 μl Elution Buffer according to the manufacturer´s protocol, evaporated to a volume of < 4 μl, and used for methylation analysis using Infinium Human MethylationEPIC BeadChip array (Illumina) covering 850,000 methylation sites across the genome.
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