AVALIAÇÃO DO EFEITO DE MICROVESÍCULAS DE MELANOMA CULTIVADO COM DEXAMETASONA SOBRE CÉLULAS DE ADENOCARCINOMA DE MAMA TRATADO COM TAMOXIFENO

Abstract

Cancer is a set of diseases caused by a simple gene injury associated with a clonal expansion with disproportionate growth. Melanoma is a skin cancer with a lower survival prospect and high metastatic capacity. Breast cancer is one of the most abundant among women, with a high incidence of death. Several studies report that all human cells are able to secrete microvesicles, and that tumor tissues secrete microparticles with high abundance. These micelles play an important role in cellular communication. Thus, communication between tumor cells has an essential function for the development of cancer. In this work, the B16F10 melanoma and 4T1 adenocarcinoma cell lines were cultured and treated with the drugs Dexamethasone and tamoxifen, as well as microvesicles extracted from the B16F10 supernatant treated with dexamethasone. The results shows a reduction in the cell viability of both strains caused by the three isolated treatments, as well as by the combined treatments of the compounds used. Drugs and microvesicles triggered cytotoxic effects on tumor lines, showing potential treatment alternatives.