Nicola Di-Iacovo, Simona Ferracchiato, Stefania Pieroni, Damiano Scopetti, Marilena Castelli, Danilo Piobbico, Luca Pierucci, Marco Gargaro, Davide Chiasserini, Giuseppe Servillo, Maria Agnese Della-Fazia
TP53 mutations are prevalent in various cancers, yet the complexity of apoptotic pathway deregulation suggests the involvement of additional factors. HOPS/TMUB1 is known to extend the half-life of p53 under normal and stress conditions, implying a regulatory function. This study investigates, for the first time, the potential modulatory role of the ubiquitin-like-protein HOPS/TMUB1 in p53-mutants. A comprehensive analysis of apoptosis in the most frequent p53-mutants, R175, R248, and R273, in SKBR3, MIA PaCa2, and H1975 cells indicates that the overexpression of HOPS induces apoptosis at least equivalent to that caused by DNA damage...
April 23, 2024: International Journal of Molecular Sciences