Scientists find chemical key that 'could stop cancer in its tracks'Posted: 9 months ago by AutumnLotus British scientists have unlocked one of the secrets behind how cancer spreads around the body. The breakthrough could help pave the way for a generation of drugs that would halt up to 90 per cent of cancers in their tracks. Such drugs could be particularly effective against breast and lung tumours - two of the biggest killers. Comments: 0 Score: [-] 437 [+].