This finding, based on an ongoing study of 40 women with a type ofbreast cancer that doesn't respond to hormone therapy, was presented today (Oct. 18) at the 11th Annual International Conference on Frontiers in Cancer Prevention Research in Anaheim, Calif. This same mechanism might be behind positive results seen among prostate cancer patients, also presented today by a separate team of researchers at the same conference. [Top 10 Cancer-Fighting Foods]