Pellattiero, Anna (2019) Pharmacological modulation of mitochondrial dynamics: identification of a specific OPA1 inhibitor to enhance apoptotic release of cytochrome c. [Ph.D. thesis]
Full text disponibile come:
Abstract (italian or english)
The GTPase activity of OPA1, a dynamin-related mitochondrial protein upregulated in several tumors, controls cristae remodeling, cytochrome c release and apoptosis. To pharmacologically target OPA1 in cancer, we setup and iterated a high-throughput screening of a diversity based chemical library of 10,000 drug-like small molecules for recombinant purified OPA1 GTPase activity inhibition, identifying 8 candidates that were confirmed in a secondary screen. The most promising hit (MYLS22) was highly specific, as it could bind to recombinant OPA1 GTPase and did not inhibit recombinant Dynamin 1 GTPase activity. MYLS22 was not mitochondriotoxic, but it increased OPA1 oligomers disassembly and cytochrome c release in response to the proapoptotic stimulus BID in purified mitochondria and to hydrogen peroxide in cells, where MYLS22 caused the expected mitochondrial fragmentation. MYLS22 also phenocopied the inhibition of breast cancer cells migration caused by OPA1 silencing. Thus, we identified a first-in-kind OPA1 inhibitor with potential anti-cancer properties.
BibliografiaI riferimenti della bibliografia possono essere cercati con Cerca la citazione di AIRE, copiando il titolo dell'articolo (o del libro) e la rivista (se presente) nei campi appositi di "Cerca la Citazione di AIRE".
Le url contenute in alcuni riferimenti sono raggiungibili cliccando sul link alla fine della citazione (Vai!) e tramite Google (Ricerca con Google). Il risultato dipende dalla formattazione della citazione.
Solo per lo Staff dell Archivio: Modifica questo record