'Cellular barcoding' reveals how breast cancer spreads

A cutting-edge technique called cellular barcoding has been used to tag, track and pinpoint cells responsible for the spread of breast cancer from the main tumour into the blood and other organs.

The technique also revealed how chemotherapy temporarily shrinks the number of harmful cells, rather than eliminating them, explaining how the cancer could eventually relapse.

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Credit: Walter and Eliza Hall Institute of Medical Research