Scientists behind the discovery that sufferers of aggressive breast cancer stand a better chance of survival if they have "killer" T-cells near their tumour said the finding was "key" to a better understanding of how to fight the disease.
Professor Peter Johnson,Cancer Research UK chief clinician, explained:
This research highlights the great strides we are making in understanding the complex interplay between cancer and the body's immune system.
These studies are key to informing how we are best able to treat patients in the clinic and to design better drugs that make the best use of the body's own defences.
More top news
10 years on, George Psaradakis has given his first interview, recalling the events of July 7 2005.
A spat between the supporters of Yvette Cooper and Liz has seen a debate rage over whether a woman needs to be a mother to be a good leader.
A British Tamil cricketer has died after being hit in the chest by a ball.