© 1998 by Oxford University Press
Trials are now under way that experts say should give definitive answers about whether multidrug resistance can effectively be reversed in the clinic, making cancer cells more sensitive to chemotherapy.
Other researchers, meanwhile, are developing strategies to make MDR work for rather than against them, using gene transfer techniques to render normal cells more resistant to anticancer drugs.
The different tacks taken by these two lines of research represent the latest efforts to overcome one of the most tenacious problems in clinical oncology, the complexity of which has only recently come to be fully appreciated.
The challenges facing researchers in this field are threefold, wrote Branimir I. Sikic, M.D., director of the General Clinical Research Center at Stanford University Medical Center in California, in an October 1997 review Outwitting Drug Resistance Requires Researchers to Take Many Different Tacks
This is the second of two articles on multidrug resistance in cancer.