Abstract
Atopic dermatitis (AD) is a worldwide disease with a complex aetiology. Both genetic and environmental factors cause a predisposition to AD. DNA methylation may be an additional predisposing factor. The goal of our study was to investigate genome-wide methylation profiles of skin from patients with AD and healthy persons. This case-control study included 12 ADpatients and 6 healthy volunteers. DNA methylation levels in skin samples were analysed using the Illumina Infinium HumanMethylation450 BeadChip. We found that the methylation profile of skin from patients with AD was significantly different from that of healthy controls. Differential DNA methylation was observed for genes involved in a number of AD-related processes including regulation of the immune response, activation of lymphocytes, cell proliferation, apoptosis and differentiation of the epidermis. Our study indicates the involvement of epigenetic regulation in the development of atopic dermatitis.
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