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Researcher's Profile

2010.07 :  Professor, RCAST, The University of Tokyo(UTokyo) (~2018.03)

Project Professor

Hirofumi DOI

System Biology and Medicine


PhD, School of Science, Kyoto University
Researcher, IIAS, Fujitsu Ltd.
Director, ERATO Doi Project, JST
Visiting Professor, Nara Institute of Science and Technology
Professor, RCAST, The University of Tokyo(UTokyo) (~2018.03)

Research Interests

In 1997 the FDA sanctioned Rituxan as the first monoclonal antibody drug for cancer therapy, and after that many antibody drugs have been marketed. Rituxan is a chimeric antibody of mouse Fab and human Fc regions. Herceptin approved in 1998 is also a monoclonal antibody drug for breast cancer, but a humanized antibody. Genome analysis projects of mouse and human were going on in 1998, and completed in 2002 and 2003, respectively. This research group has been trying to humanize mouse monoclonal antibodies as well as extraneous proteins from the omics information based on human and mouse genomes. As an example of extraneous proteins, low immunogenic strepavidin (SA) that strongly binds biotin will be applicable as a medicine. The low immunogenic SA fused with single chain Fv antibody will enable pretargeted radioimmunotherapy.

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