A drug that helps cancer cells die a natural death can also overcome their resistance to chemotherapy, researchers report.Cancer cells can elude the effect of drugs used to attack tumors because they have turned off the molecular self-destruct mechanism that leads to natural cell death. That mechanism can be turned on again in a number of different tumors by rapamycin, a drug now used to help organ transplants succeed, says a report in the March 18 issue of Nature by researchers at Cold Spring Harbor Laboratory in New York.
