Aspectos inmunogenéticos de la psoriasis con énfasis en micro-ARN

Psoriasis is a chronic inflammatory disease of the skin, of autoimmune origin, with different cells implicated in the aetiopathology, such as T helper lymphocytes (Th1 and Th17), keratinocytes, and cytokines produced by these cells. The epigenetic regulatory mechanisms are the junction between environmental exposure and genetic factors. It is known that microRNAs (miRNAs), single chain RNAs, are actively involved in epigenetic regulation. Alterations in the miR-125b, miR-424, miR- 21 and miR-203 expression, and others, have been involved in different aspects of the disease. Global studies of miRNA expression performed using microarrays and by direct RNA sequencing revealed important differences in miRNA expression in normal skin and psoriatic individuals. These miRNAs can be considered as potential therapeutic targets or biomarkers of disease.