Breast cancer could be detected up to five years before there are any clinical signs of it, using a blood test that identifies the body’s immune response to substances produced by tumour cells, according to research presented at the 2019 NCRI Cancer Conference.

Cancer cells produce proteins called antigens that trigger the body to make antibodies against them – auto-antibodies. Researchers at the University of Nottingham (UK) have found that these tumour-associated antigens (TAAs) are good indicators of cancer, and now they have developed panels of TAAs that are known already to be associated with breast cancer to detect whether or not there are auto-antibodies against them in blood samples taken from patients.

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