Previous studies have found Resveratrol makes prostate tumor cells more susceptible to chemotherapy.
This University of Missouri study found it also made the cells more susceptible to radiation treatment. They found the combination of Resveratrol and radiation treatment was much more effective than either on their own.
The effective dose of resveratrol was very high when taken generally, while only small amounts are needed at the actual tumor site, so they are looking at other delivery methods.
Can see the press release here: