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Título: | Fluorizoline-induced apoptosis requires prohibitins in nematodes and human cells |
Autor: | Saura-Esteller, José; Sánchez-Vera, Ismael; Núñez-Vázquez, Sonia; Jabalquinto-Carrasco, Judith; Cosialls, Ana M.; Mendive-Tapia, Lorena; Kukhtar, Dmytro; Martínez-Bueno, Manuel CSIC ORCID; Lavilla, Rodolfo; Cerón, Julián CSIC ORCID; Artal-Sanz, Marta CSIC ORCID; Pons, Gabriel; Iglesias-Serret, Daniel; Gil, Joan | Palabras clave: | Prohibitins Fluorizoline Apoptosis C. elegans |
Fecha de publicación: | 2-ene-2021 | Editor: | Springer Nature | Citación: | Apoptosis : an international journal on programmed cell death 26: 83-95 (2021) | Resumen: | We previously showed that fluorizoline, a fluorinated thiazoline compound, binds to both subunits of the mitochondrial prohibitin (PHB) complex, PHB1 and PHB2, being the expression of these proteins required for fluorizoline-induced apoptosis in mouse embryonic fibroblasts. To investigate the conservation of this apoptotic mechanism, we studied the effect of PHB downregulation on fluorizoline activity on two human cell lines, HEK293T and U2OS. Then, we asked whether PHBs mediate the effect of fluorizoline in a multicellular organism. Interestingly, reduced levels of PHBs in the human cells impaired the induction of apoptosis by fluorizoline. We observed that fluorizoline has a detrimental dose-dependent effect on the development and survival of the nematode model Caenorhabditis elegans. Besides, such effects of fluorizoline treatment in living nematodes were absent in PHB mutants. Finally, we further explored the apoptotic pathway triggered by fluorizoline in human cell lines. We found that the BH3-only proteins NOXA, BIM and PUMA participate in fluorizoline-induced apoptosis and that the induction of NOXA and PUMA is dependent on PHB expression. | Versión del editor: | http://dx.doi.org/10.1007/s10495-020-01651-z | URI: | http://hdl.handle.net/10261/260095 | DOI: | 10.1007/s10495-020-01651-z | ISSN: | 1360-8185 | E-ISSN: | 1573-675X |
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