Plant based derivatives that cure cancer are a plenty with scientists discover more of them with time. One on the list from a long time is Resveratrol, a compound found in grapes, peanuts and berries. But how does this compound fight with cancerous cells? A new study has now thrown some light on the exact mechanism of how derivatives from resveratrol acts on cancerous cells and kills them, in the process, letting the other healthier cells remain unharmed. This discover, the researchers claim, can help scientists in developing more efficient drugs that can fight cancer, a deadly disease.