Dr Arran Turnbull is a postdoctoral research fellow leading the lab-based research team as part of the Edinburgh Breast Cancer Now Research Team at the MRC Institute of Genetics and Molecular Medicine at the University of Edinburgh. Arran's research work focuses primarily on understanding, predicting and treating resistance to endocrine therapy in breast cancer patients.

Arran's undergraduate honours degree was in molecular biology at Heriot-Watt University and this was followed by a masters by research degree in immunology, genetics and pathway medicine at the University of Edinburgh. Arran graduated from his PhD in oncology at the University of Edinburgh in 2012 and took up a post-doctoral research position in the Edinburgh Breast Cancer Now Research Team, leading the lab-based research and a number of local and international collaborations. In 2014 Arran went on to study medicine at the University of Glasgow.

Arran's PhD focused on the successful development and validation of a translational predictive test for endocrine therapy response in breast cancer for which he, the research team and the University of Edinburgh now hold the UK patent. This test has been successfully validated in several independent cohorts of patients and is moving towards a prospective clinical trial both in the UK and USA.

Arran is also the principal investigator of research projects focused on DCIS, radiotherapy response, microwave radiometry for breast cancer diagnosis and prostate cancer.