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Abstract Title:

Ursolic Acid Exhibits Potent Anticancer Effects in Human Metastatic Melanoma Cancer Cells (SK-MEL-24).

Abstract Source:

Med Sci Monit. 2019 Feb 17 ;25:1283-1290. Epub 2019 Feb 17. PMID: 30772887

Abstract Author(s):

Pengcheng Liu, Ruili Du, Xin Yu

Article Affiliation:

Pengcheng Liu

Abstract:

BACKGROUND Ursolic acid is an important bioactive triterpenoid that has been reported to be of tremendous pharmacological importance. However, the anticancer potential of ursolic acid has not been examined against metastatic melanoma cells. Therefore, in this study we examined the anticancer potential of ursolic acid and its mode of action. MATERIAL AND METHODS WST-1 and colony formation assays were used for cell viability assessment. Cell cycle analysis was performed by flow cytometry. Apoptosis was detected by AO/EB staining using fluorescence microscopy. Cell migration and invasion were assessed by Boyden chamber assay. Protein expression was checked by Western blotting. RESULTS The results revealed that ursolic acid exerts significant (p<0.01) growth-inhibitory effects on SK-MEL-24 cells. The IC₅₀ of ursolic acid against SK-MEL-24 cells was 25 µM. Our investigation of the underlying mechanism revealed that ursolic acid prompts apoptotic cell death of the SK-MEL-24 cells, which was linked with increased expression of Bax and Caspase 3 and 9, and decreased expression of Bcl-2. Ursolic acid also halted the SK-MEL-24 cells at G0/G1 phase of the cell cycle and also downregulated the expression of Cyclin B1 and Cdc25. Ursolic acid significantly (p<0.01) inhibited the migration and invasion of SK-MEL-2 cells, indicative of its anti-metastatic potential. Finally, ursolic acid inhibited the MAPK/ERK pathway by suppressing the expression of p-P38 and p-ERK. CONCLUSIONS Ursolic acid appears to be a potent molecule for the treatment of melanoma.

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Sayer Ji
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