RT info:eu-repo/semantics/article T1 Antimetastatic Properties of Prodigiosin and the BH3-Mimetic Obatoclax (GX15-070) in Melanoma A1 Espona Fiedler, Margarita A1 Manuel Manresa, Pilar A1 Benítez-García, Cristina A1 Fontova Pale, Pere A1 Quesada Pato, Roberto A1 Soto Cerrato, Vanessa A1 Pérez Tomás, Ricardo K1 Metastasis K1 Obatoclax K1 Prodigiosin K1 Prodiginines K1 BH3-mimetic K1 Melanoma K1 Migration K1 Química orgánica K1 Chemistry, Organic K1 Salud K1 Health K1 Medicina K1 Medicine AB Metastasis is the primary cause of death in cancer patients. Many current chemotherapeuticagents only show cytotoxic, but not antimetastatic properties. This leads to a reduction in tumorsize, but allows cancer cells to disseminate, which ultimately causes patient death. Therefore, novelanticancer compounds with both effects need to be developed. In this work, we analyze the antimetastatic properties of prodigiosin and obatoclax (GX15-070), anticancer drugs of the Prodiginines(PGs) family. We studied PGs’ effects on cellular adhesion and morphology in the human primaryand metastatic melanoma cell lines, SK-MEL-28 and SK-MEL-5, and in the murine melanoma cellline, B16F10A. Cell adhesion sharply decreased in the treated cells, and this was accompanied by areduction in filopodia protrusions and a significant decrease in the number of focal-adhesion structures. Moreover, cell migration was assessed through the wound-healing assay and cell motility wasseverely inhibited after 24 h of treatment. To elucidate the molecular mechanisms involved, changesin metastasis-related genes were analyzed through a gene-expression array. Key genes related tocellular invasion, migration and chemoresistance were significantly down-regulated. Finally, anin vivo model of melanoma-induced lung metastasis was established and significant differences inlung tumors were observed in the obatoclax-treated mice. Altogether, these results describe, in depth,PGs’ cellular antimetastatic effects and identify in vivo antimetastatic properties of Obatoclax. PB MDPI YR 2022 FD 2022-12 LK http://hdl.handle.net/10259/7559 UL http://hdl.handle.net/10259/7559 LA eng NO This research has been funded by Instituto de Salud Carlos III (Grants PI18/00441; FIS PI10/00338) (Co-funded by European Regional Development Fund. ERDF, a way to build Europe). DS Repositorio Institucional de la Universidad de Burgos RD 24-nov-2024