Novel hemagglutinin-binding sulfated oligofucosides and their effect on influenza virus infection
Shuhei Kosono1, Akihiro Kasai1, Sumika Komaba1
1Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan. dtak@applc.keio.ac.jp toshima@applc.keio.ac.jp.
Abstract:
Among a series of chemically synthesized fucoidan derivatives (1-9), 5 was found for the first time to bind to influenza virus hemagglutinins (HAs) and inhibit hemagglutination activity. In addition, a designed C3-symmetric tripodal ligand 10, synthesized with three sulfated oligofucoside moieties of 5, exhibited much greater hemagglutination inhibition activity than 5. A plaque assay using MDCK cells demonstrated that 10 effectively inhibited influenza virus infection.
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