As long as its pathway is active, the cancerous cell remains poised to senesce.
From the sciencedaily.com
As cells become damaged and precancerous, the p53 protein prevents those cells from continuing towards becoming tumors by causing the cells to senesce.
From the sciencedaily.com
The cells of all higher organisms begin to age, or senesce, after just a few dozen cell divisions, ultimately leading to the death of the organism itself.