Chair of Cancer Research UK and former Vice- Chancellor of the University of Cambridge
Sir Leszek became Chair of Cancer Research UK, shortly before he retired from the Vice-Chancellorship of Cambridge University. In the past he has been Chief Executive of the UK's Medical Research Council (MRC) and Principal of the Faculty of Medicine and then Deputy Rector of Imperial College London - responsible for the overall academic and scientific direction of the institution, particularly the development of inter-disciplinary research between engineering, physical sciences and biomedicine. While at Imperial he was also Governor of the Wellcome Trust; Chairman of the UK Clinical Research Collaboration's Integrated Academic Training Awards Panel and Chair of the HEFCE RAE Main Panel A Assessment Panel.
He was knighted in the 2001 New Year's Honours List for his contribution to medical education and research into developing vaccines, including work towards a vaccine against cervical cancer. Currently, he is a Trustee of Nanyang Technical University, Singapore and a UK Research & Innovation (UKRI) Board Member. He is a Founding Fellow of the Learned Society of Wales.