Overcoming chemotherapy resistance with herbal medicines: past, present and future perspectives

Drug resistance is a major problem in cancer chemotherapy and such resistance may be responsible for treatment failure in 90 % of patients with metastatic cancer. From the research work in the past 30 years, multi-mechanisms responsible for the development of drug resistance have been identified. However, to date single agents that target specific single mechanisms of resistance have not been proven effective. Theoretically, herbs have the...