Breast cancer drugs stop working when tumours 'make their ow
Scientists have discovered why a type of breast cancer drug stops working in some patients.

The early-stage findings, from an international team led by Imperial College London and the European Institute of Oncology in Milan, reveal some breast tumours evolve to make their own 'fuel supply', rendering treatments powerless.

The team, whose findings are published in the journal Nature Genetics, hope their work will increase treatment options for patients whose cancer has returned.

Breast cancer is the most common cancer in the U.K, and causes 55,200 new cases every year.

Around 70 per cent of breast cancers are so-called ER positive, which means the cancer cells contain a receptor for the hormone oestrogen. It is this hormone that fuels the tumours....