MicroRNA-1290 promotes asiatic acid‑induced apoptosis by decreasing BCL2 protein level in A549 non‑small cell lung carcinoma cells
2014
Asiatic acid, a triterpenoid derived from Centella asiatica, is a putative anticancer agent in several types of cancer cells. Investigations of its biological role in negative regulation of cell growth have focused on the extent of induction of apoptosis in a cell-type-specific manner. In this study, we identified an important regulator of asiatic acid-induced cell death, microRNA (miR)-1290, which sensitizes cells to asiatic acid-induced cytotoxicity and negatively regulates BCL2 expression. Asiatic acid significantly upregulated miR-1290, and asiatic acid-induced cell death was shown to be dependent on miR-1290 activity. Molecular assays demonstrated that BCL2 mRNA is a direct target of miR-1290-mediated RNA interference. The results of functional studies suggest that miR-1290 suppresses cell viability and cell cycle progression. These data provide insight into miR-1290-mediated cellular mechanisms in asiatic acid-treated A549 non-small cell lung carcinoma cells.
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