Although cancer and aging can both be considered consequences of cellular damage (Greaves and Maley, 2012; Lo´ pezOtı´n et al., 2013), we did not find evidence for fitness-based
cell selection having a role as a tumor suppressor in Drosophila.
Our results rather support that accumulation of unfit cells affect
organ integrity and that, once organ function falls below a critical
threshold, the individual dies