The COP9 signalosome is a repressor of replicative stress responses and polyploidization in the regenerating liver
Martina Panattoni, Laura Maiorino, Anna Lukacs, Lorena Zentilin, Davide Mazza, Francesca Sanvito, Giovanni Sitia, Luca G. Guidotti, Ruggero Pardi – 22 January 2014 – Aberrant DNA replication induced by deregulated or excessive proliferative stimuli evokes a “replicative stress response” leading to cell cycle restriction and/or apoptosis. This robust fail‐safe mechanism is eventually bypassed by transformed cells, due to ill‐defined epistatic interactions.