Scientists in America say they have discovered what they believe is a potentially important medical treatment that could prevent the spread of cancer in humans.
The team from Boston says a compound called Salinomycin, which they tested in mice, killed 100 times more cancer stems cells than a standard chemotherapy drug, the BBC reports.
Cancer stem cells are thought to control tumour growth but have until now been hard to destroy.
Researchers believe this could lead to a whole new way of treating cancer.
