Professor Deborah J Marsh is a cancer cell and molecular biologist who, since late 2018, has led the Translational Oncology Group at UTS in the School of Life Sciences (SoLS), Faculty of Science. She is the Discipline Leader for Medical Science in SoLS. She was awarded her PhD from the University of Sydney on the RET proto-oncogene and undertook postdoctoral studies at the Dana Farber Cancer Institute associated with Harvard Medical School, Boston, USA (1996-1999). Here, she was involved in implicating the tumour suppressor gene PTEN in a range of familial and sporadic cancers, with several seminal, highly cited papers, including in Nature Genetics. Today, PTEN is well recognized as the second most frequently mutated gene in human malignancy. After returning to Australia, she established her research group at the Kolling Institute, a medical research institute associated with the University of Sydney (1999-2018). At the Kolling Institute, she worked on a number of familial cancer syndromes, including Hyperparathyroidism Jaw Tumour Syndrome, led bio-banking initiatives, and established her research program on ovarian cancer. She has a broader research interest in all malignancies that affect women, including breast and endometrial cancer. Over 15 years at the Kolling Institute, she held a number of competitive fellowships, including an RD Wright Fellowship (NHMRC), Cancer Institute Career Development Fellowships, an ARC Future Fellowship and a NHMRC Senior Research Fellowship.