This volume aims to introduce researchers in pharmaceutical and allied industries to the concepts and latest developments in the application of biotechnology recombinant DNA and monoclonal antibodies to drug development. The author puts biotechnology in perspective, introducing the basic concepts of cell and molecular biology and discussing both the application of protein drugs and the design of new molecular entities. The study examines the use of proteins and assay systems produced via biotechnology to the development of small-molecule drugs. A discussion of gene and somatic cell therapies is included, along with developments in diagnostic methods resulting from biotechnology. The text concludes by examining future prospects and likely developments in the field.