The chances of beating aggressive breast cancer were raised for women who had "killer" T-cells near their tumour, a study has found.
The killer T-cells destroy cancerous cells by blasting them with toxic proteins and patients found to have them were 10% more likely to live for five years or more than a breast cancer sufferer without them.
The association was seen in women with non-hormone sensitive breast cancer and cancers marked by especially active HER2 genes.
Lead researcher Dr Raza Ali, a lecturer at the Cancer Research UK Cambridge Institute, explained: "This important insight could help doctors personalise a woman's treatment based on her immunological profile and also suggests new treatments should harness the immune system to fight cancer."
More top news
The British territory will allow only domestic partnerships after senators approved the Domestic Partnership Act by an 8-3 vote.
More than 1,500 people are expected to attend the multi-faith service, including many bereaved families and survivors.
The app enables people in Devon and Cornwall to view current waiting times for local emergency departments and minor injuries units.