A vaccine based on induced pluripotent stem cells, or iPSCs have shown to be cure , of some kind, in number of different cancers. The reprogrammed stems cells, must be inactivated with a blast of radiation before they can be used in the vaccine. That step make them uncontrollably disruptive to rise of tumors.
Please read article carefully, kind of technical , I had to read few times
. First time around it went over my head.