that the immune system makes to seek and destroy foreign invaders attacking the body. These monoclonal antibodies had limited application in human medicine, because mouse monoclonal antibodies are rapidly inactivated by the human immune response, which prevents them from providing long-term benefits. Winter pioneered a technique to "humanise" mouse monoclonal antibodies; a technique used in the development of Campath-1H by the Laboratory of Molecular Biology and University of Cambridge scientists. This antibody now looks promising for the treatment of multiple sclerosis. Humanised monoclonal antibodies form the majority of antibody-based drugs on the market today and include several blockbuster antibodies, such as Keytruda. Winter founded Cambridge Antibody Technology in 1989, and Bicycle Therapeutics. He worked on the Scientific Advisory Board of Covagen, (now part of Cilag) and is also the chairman of the Scientific Advisory Board for Biosceptre International Limited. In 1989, Winter was a founder of Cambridge Antibody Technology, one of the early commercial biotech companies involved in antibody engineering. One of the most successful antibody drugs developed was HUMIRA (adalimumab), which was discovered by Cambridge Antibody Technology as D2E7, and developed and marketed by Abbott Laboratories. HUMIRA, an antibody to TNF alpha, was the world's first fully human antibody, which went on to become the world's top selling pharmaceutical with sales of over $18Bn in 2017 Cambridge Antibody Technology was acquired by AstraZeneca in 2006 for £702m. In 2000, Winter founded Domantis to pioneer the use of domain antibodies, which use only the active portion of a full-sized antibody. Domantis was acquired by the pharmaceutical GlaxoSmithKline in December 2006 for £230 million. Winter subsequently founded another company, Bicycle Therapeutics Limited as a start up company which is developing very small protein mimics based on a covalently bonded hydrophobic core. Awards and honours Winter was elected a Fellow of the Royal Society (FRS) in 1990 and awarded the Royal Medal by the society in 2011 "for his pioneering work in protein engineering and therapeutic monoclonal antibodies, and his contributions as an inventor and entrepreneur". He was given the Scheele Award in 1994. In 1995, Winter won several international awards including the King Faisal International Prize for Medicine (Molecular Immunology) and in 1999, the Cancer Research Institute William B. Coley Award. Winter was formerly the Joint Head of the Division of Protein and Nucleic acid Chemistry-Biotechnology, and was Deputy Director, at the Laboratory of Molecular Biology, Cambridge, an institution funded by