Why are some cells more cancer prone?

Cells in the body wear down over time and die. In many organs, like the small intestine, adult stem cells play a vital role in maintaining function by replacing old cells with new ones. Learning about the nature of tissue stem cells can help scientists understand exactly how our organs are built, and why some organs generate cancer frequently, but others only rarely.

Fuente : http://www.eurekalert.org/pub_releases/2013-08/ci-…