UK study uncovers clue to cancer drug resistance

A new study jointly funded by Breakthrough Breast Cancer and Cancer Research UK has revealed how cancer cells carrying a faulty gene can become resistant to treatment.
Drug resistance is one of the major reasons for treatment failure, and the finding could potentially lead to new treatments that make resistant cancer cells sensitive to treatment once more.

http://info.cancerresearchuk.org/news/archive/newsarchive/2008/february/18465339