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Fluorizoline is a new synthetic molecule that induces apoptosis by selectively targeting prohibitins. In this study, we have assessed the pro-apoptotic effect of fluorizoline in 3 different multiple myeloma cell lines and 12 primary samples obtained from treatment-naïve multiple myeloma patients. Fluorizoline induced apoptosis in both multiple myeloma cell lines and primary samples at concentrations in the low micromolar range. All primary samples were sensitive to fluorizoline. Moreover, fluorizoline increased the mRNA and protein levels of the pro-apoptotic BCL-2 family member NOXA both in cell lines and primary samples analyzed. Finally, NOXA-depletion by CRISPR/Cas9 in cells that do not express BIM conferred resistance to fluorizoline-induced apoptosis in multiple myeloma cells. These results suggest that targeting prohibitins could be a new therapeutic strategy for myeloma multiple. Copyright © 2020 Elsevier Inc. All rights reserved.


Ana M Cosialls, Ismael Sánchez-Vera, Helena Pomares, Judit Perramon-Andújar, Sandra Sanchez-Esteban, Claudia M Palmeri, Daniel Iglesias-Serret, José Saura-Esteller, Sonia Núñez-Vázquez, Rodolfo Lavilla, Eva M González-Barca, Gabriel Pons, Joan Gil. The BCL-2 family members NOXA and BIM mediate fluorizoline-induced apoptosis in multiple myeloma cells. Biochemical pharmacology. 2020 Oct;180:114198

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PMID: 32798467

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