Changes in microRNA expression in skin melanocytic tumors

Abstract

The expression of microRNA (hsa-miR-146a, hsa-miR-150, hsa-miR-196a, hsa-miR-218) in biopsy specimens from patients with melanocytic tumors of the skin was studied by RT-PCR. The expression of miR-196a and miR-218 was lower in skin melanoma than in benign skin melanocytic tumors. No relationship between the level of analyzed microRNA expression and clinical morphologicalforms of melanoma and its metastatic potential (according to AJCC classification) was detected. The detected changes in the levels of microRNA in skin melanoma indicated disorders in the gene expression levels at the posttranscription level, essential for the development of new approaches to the diagnosis, therapy, and prognosis of this disease.

Keywords

microRNA / skin melanoma / nevus / posttranscription regulators

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