Hopes raised for block on cancer
Could this be the breakthrough that will cut to the heart of cancer treatment and see real hope of a cure for many cancers? The research will need backing from not only bug drug companies but international governments too if its to ever get to market at a cost that will enable most to access it.
Scientists say they have taken a big step towards blocking a chemical vital to the growth of many cancers.
They have unpicked the structure of telomerase, an enzyme which, when active, helps keep cells in an "immortal" state.
The chemical is at work in more than nine out of ten types of tumour.
Researchers from Philadelphia's Wistar Institute, writing in the journal Nature, say their efforts could lead to drugs which switch it off.