Dr Dexter spent the five years prior to joining Stem Cell Sciences as Director (Chief Executive Officer) of The Wellcome Trust. During his time at The Wellcome Trust, he oversaw one of the biggest advances in biomedical research when it was announced that the human genome had been sequenced - giving scientists a detailed map of the body's make-up for the first time. Prior to joining The Wellcome Trust, he was Director of Research at the Paterson Institute for Cancer Research, Christie Hospital, NHS Trust, Manchester. He is a Fellow of the Royal Society (London), was appointed Professor of Experimental Oncology at the University of Manchester and is an honorary Fellow of the Royal College of Physicians and a founding fellow of the Academy of Medical Sciences. He is currently Chairman of the International Centre for Life, Newcastle, and the Cockcroft Institute for Accelerator Sciences in Daresbury, Cheshire. He was previously a Director of Catalyst Biomedica Ltd, the translational business arm of The Wellcome Trust. He has over 360 publications on his scientific work.