A chemical that nerves use to talk to each other might help show which tumours are the most likely to spread, US researchers reported on Monday (July 4). Gamma amino butyric acid, or GABA, is found at unusually high levels in some aggressive lung, thyroid, and prostate tumours, a team at Washington University School of Medicine in St. Louis found.
"GABA appears to be an indicator of a bad prognosis for these cancers," Dr Jeffrey Gordon, who led the study, said in a statement.