The venom of a wasp native to Brazil could be used as a weapon to fight cancer, scientists believe. A toxin in the sting kills cancer cells without harming normal cells, lab studies suggest. The University of Brazil team say the experimental therapy latches to tumour cells and makes them leak vital molecules. The work is at an early stage and more studies are needed to check the method will work safely in humans. Source
If it cures cancer you'll never see it marketed in the US. Drug companies have too much at stake pushing all of their chemo and other chemicals to allow a 'cure' to put them out of the cancer drug business.