The mechanisms that impact tumorigenesis during aging are incompletely understood. Here Shuldiner et al. show that in mice, aging represses KRAS-driven lung tumorigenesis and dampens the impact of inactivating many tumor suppressor genes, which may contribute to the deceleration in cancer incidence with extreme age in humans.
- Emily G. Shuldiner
- Saswati Karmakar
- Monte M. Winslow