Dr Colin Hisey and Dr Cherie Blenkiron from the Department of Obstetrics and Gynaecology were awarded the Breast Cancer Foundation (BCF) Project Grant which focuses on the catch-and-release – a new way of monitoring treatment effectiveness in breast cancer patients.

Researchers have been struggling to figure out how best to detect remaining cancer cells in patients’ bodies. Extracellular vesicles (EVs) – tiny packages released by all cells – travel in our blood. We can identify where they come from, including from a tumour. Scientists believe there’s potential to track the number of breast cancer-specific EVs in blood samples to determine if more treatment is needed, or that the cancer has returned. But because healthy EVs vastly outnumber the cancer cells, Dr Colin Hisey and Dr Cherie Blenkiron from University of Auckland are working on a new device that will catch the cancer EVs, while releasing the healthy EVs. This method of isolating cancer EVs could be a low cost and non-invasive tool to improve breast cancer patients’ treatment and recurrence monitoring.