Journal
PLOS ONE
Volume 15, Issue 9, Pages -Publisher
PUBLIC LIBRARY SCIENCE
DOI: 10.1371/journal.pone.0239088
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Funding
- Hungarian grants [GINOP-2.3.3-15-2016-00025, GINOP-2.3.2-15-2016-00049, EFOP-3.6.1-16-2016-00004]
- Higher Education Institutional Excellence Program
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Previously, we demonstrated thein vitroanti-tumor effects of desethylamiodarone (DEA) in bladder and cervix cancer cell lines. In the present study, we intended to establish its potentiality in B16-F10 metastatic melanoma cellsin vitroandin vivo. We assessed cell proliferation, apoptosis and cell cycle by using sulforhodamine B assay, Muse (TM) Annexin V & Dead Cell and Muse (R) Cell Cycle assays, respectively. We determined colony formation after crystal violet staining. For studying mechanistic aspects, immunoblotting analysis was performed. We used a C57BL/6 experimental lung metastasis model for demonstratingin vivoanti-metastatic potential of DEA. DEA inhibitedin vitroproliferation and colony formation, andin vivolung metastasizing properties of B16-F10 cells. It arrested the cells in G0/G1 phase of their cycle likely via p21 in a p53-dependent fashion, and induced caspase mediated apoptosis likely via inversely regulating Bcl-2 and Bax levels, and reducing Akt and ERK1/2 activation. In this study, we providedin vitroandin vivoexperimental evidences for DEA's potentiality in the therapy of metastatic melanomas. Since DEA is the major metabolite of amiodarone, a worldwide used antiarrhythmic drug, safety concerns could be resolved more easily for it than for a novel pharmacological agent.
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