ジャーナル: Science / 年: 2018 タイトル: Universal protection against influenza infection by a multidomain antibody to influenza hemagglutinin. 著者: Nick S Laursen / Robert H E Friesen / Xueyong Zhu / Mandy Jongeneelen / Sven Blokland / Jan Vermond / Alida van Eijgen / Chan Tang / Harry van Diepen / Galina Obmolova / Marijn van der Neut ...著者: Nick S Laursen / Robert H E Friesen / Xueyong Zhu / Mandy Jongeneelen / Sven Blokland / Jan Vermond / Alida van Eijgen / Chan Tang / Harry van Diepen / Galina Obmolova / Marijn van der Neut Kolfschoten / David Zuijdgeest / Roel Straetemans / Ryan M B Hoffman / Travis Nieusma / Jesper Pallesen / Hannah L Turner / Steffen M Bernard / Andrew B Ward / Jinquan Luo / Leo L M Poon / Anna P Tretiakova / James M Wilson / Maria P Limberis / Ronald Vogels / Boerries Brandenburg / Joost A Kolkman / Ian A Wilson / 要旨: Broadly neutralizing antibodies against highly variable pathogens have stimulated the design of vaccines and therapeutics. We report the use of diverse camelid single-domain antibodies to influenza ...Broadly neutralizing antibodies against highly variable pathogens have stimulated the design of vaccines and therapeutics. We report the use of diverse camelid single-domain antibodies to influenza virus hemagglutinin to generate multidomain antibodies with impressive breadth and potency. Multidomain antibody MD3606 protects mice against influenza A and B infection when administered intravenously or expressed locally from a recombinant adeno-associated virus vector. Crystal and single-particle electron microscopy structures of these antibodies with hemagglutinins from influenza A and B viruses reveal binding to highly conserved epitopes. Collectively, our findings demonstrate that multidomain antibodies targeting multiple epitopes exhibit enhanced virus cross-reactivity and potency. In combination with adeno-associated virus-mediated gene delivery, they may provide an effective strategy to prevent infection with influenza virus and other highly variable pathogens.