A Neutralizing Antibody Selected from Plasma Cells that Binds to Group 1 and Group 2 Influenza a Hemagglutinins.
Corti, D., Voss, J.E., Gamblin, S.J., Codoni, G., Macagno, A., Jarrossay, D., Vachieri, S.G., Pinna, D., Minola, A., Vanzetta, F., Silacci, C., Fernandez-Rodriguez, B.M., Agatic, G., Bianchi, S., Giacchetto-Sasselli, I., Calder, L., Sallusto, F., Collins, P.J., Haire, L.F., Temperton, N., Langedijk, J.P.M., Skehel, J.J., Lanzavecchia, A.(2011) Science 333: 850
- PubMed: 21798894 
- DOI: https://doi.org/10.1126/science.1205669
- Primary Citation of Related Structures:  
3ZTJ, 3ZTN - PubMed Abstract: 
The isolation of broadly neutralizing antibodies against influenza A viruses has been a long-sought goal for therapeutic approaches and vaccine design. Using a single-cell culture method for screening large numbers of human plasma cells, we isolated a neutralizing monoclonal antibody that recognized the hemagglutinin (HA) glycoprotein of all 16 subtypes and neutralized both group 1 and group 2 influenza A viruses. Passive transfer of this antibody conferred protection to mice and ferrets. Complexes with HAs from the group 1 H1 and the group 2 H3 subtypes analyzed by x-ray crystallography showed that the antibody bound to a conserved epitope in the F subdomain. This antibody may be used for passive protection and to inform vaccine design because of its broad specificity and neutralization potency.
Organizational Affiliation: 
Institute for Research in Biomedicine, 6500 Bellinzona, Switzerland.