'Genetic rewiring' by a microRNA gene drives cancer’s drug resistance 12 Feb 2020 A tiny molecule of RNA – known as ‘microRNA’ – plays a key role in ‘rewiring’ cancer cells so they can resist the effects of chemotherapy, a new study reveals. The discovery opens up the possibility of creating new cancer drugs that target this microRNA molecule, rather than more conventional treatments that block the action of proteins. Find out more Show/Hide