The way the cells are destroyed is by induced apoptosis.
What is apoptosis?
Apostis is the programmed death of an old cell. It occurs naturally all the time in healthy people.
For a video illustrating this process (a memorable five minutes worth watching) see Youtube:
For a human-readable explaination of the research, look here: http://www.foodconsumer.org
For advanced understanding look at Cancer Cell International (10 June 2011).
High doses of Vitamin C are needed.