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EnglishWe report that the mitochondrial chaperone TRAP1, which is induced in most tumor types, is required for neoplastic growth and confers transforming potential to noncancerous cells. TRAP1 binds to and inhibits succinate dehydrogenase (SDH), the complex II of the respiratory chain. The respiratory downregulation elicited by TRAP1 interaction with SDH promotes tumorigenesis by priming the succinate-dependent stabilization of the proneoplastic transcription factor HIF1α independently of hypoxic conditions. These findings provide a mechanistic clue to explain the switch to aerobic glycolysis of tumors and identify TRAP1 as a promising antineoplastic target.
| Titolo: | The mitochondrial chaperone TRAP1 promotes neoplastic growth by inhibiting succinate dehydrogenase. | |
| Autori Riconosciuti: | ||
| Autori: | Sciacovelli M;Guzzo G;Morello V;Frezza C;Zheng L;Nannini N;Calabrese F;Laudiero G;Esposito F;Landriscina M;Defilippi P;Bernardi P;Rasola A | |
| Data di pubblicazione: | 2013 | |
| Abstract: | We report that the mitochondrial chaperone TRAP1, which is induced in most tumor types, is required for neoplastic growth and confers transforming potential to noncancerous cells. TRAP1 binds to and inhibits succinate dehydrogenase (SDH), the complex II of the respiratory chain. The respiratory downregulation elicited by TRAP1 interaction with SDH promotes tumorigenesis by priming the succinate-dependent stabilization of the proneoplastic transcription factor HIF1α independently of hypoxic conditions. These findings provide a mechanistic clue to explain the switch to aerobic glycolysis of tumors and identify TRAP1 as a promising antineoplastic target. | |
| Volume: | 17 | |
| Fascicolo: | 6 | |
| Pagina iniziale: | 988 | |
| Pagina finale: | 999 | |
| Digital Object Identifier (DOI): | 10.1016/j.cmet.2013.04.019 | |
| Rivista: | CELL METABOLISM | |
| Appare nelle tipologie: | 03A-Articolo su Rivista |
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