Associate Professor Geraldine O’Neill is Acting Head of the Children’s Cancer Research Unit at Kids Research, The Children’s Hospital at Westmead. Geraldine is Academic Leader, Basic Research, for the University of Sydney Faculty of Medicine and Health (Western Precinct) and additionally coordinates innovative new Cancer units of study at Westmead within the School of Medical Sciences, University of Sydney. Geraldine has a long-standing interest in the role of the tumour microenvironment in cancer progression and response to therapy, with a particular focus on the development of improved preclinical models for brain cancer. She completed her PhD at the Kolling Institute of Medical Research, University of Sydney and then undertook post-doctoral studies at Fox Chase Cancer Centre in Philadelphia, USA, returning to Australia with award of an NHMRC Howard Florey Post-doctoral Fellowship. Next, as NSW Cancer Council Career Development Fellow, she established a program of cancer cell biology research at Westmead. Among other roles, she is member of Scientific Advisory Committees of the Clinical Oncology Group – Neuro-oncology (COGNO) and the Children’s Hospital Foundation, Queensland.