Close window Published online: 9 November 2006; | doi:10.1038/news061106-16 Drug makes cells ignore mutationExperimental cystic-fibrosis treatment could be used in many diseases.Claire AinsworthA drug that corrects the effects of a genetic mutation has produced encouraging results in tests on patients. The drug, PTC124, is designed to fool a patient's cells into producing a functional protein, even though that protein's gene is mutated. PTC124, made by New-Jersey-based biotech company PTC Therapeutics, is part of a growing field of research targeting therapies at the RNA that ferries information between DNA and proteins. Although results so far are preliminary, they provide proof...