Researchers at the University of Adelaide have shown how a complex mix of plant compounds derived from ancient clinical practice in China - a traditional Chinese medicine - works to kill cancer cells. Compound kushen injection (CKI) is approved for use in China to treat various cancer tumours, usually as an adjunct to western chemotherapy - but how it works has not been known. This study, published in the journal Oncotarget, is one of the first to characterise the molecular action of a Traditional Chinese Medicine rather than breaking it down to its constituent parts. "Most traditional Chinese medicine is based on hundreds or thousands of years of experience with their use in China," says study