Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8418014 | Journal of Immunological Methods | 2013 | 8 Pages |
Abstract
Significant efforts have been made to identify HIV-1 neutralizing antibodies because they are considered to be critical to the design of an effective HIV-1 vaccine. Although soluble HIV-1 envelope proteins can be used for this purpose, these reagents differ from membrane-anchored HIV-1 envelope spike in a number of important ways and display only a subset of its native epitopes. Consistent with this, some broadly neutralizing antibodies preferentially bind cell surface-expressed HIV-1 envelope, but not the soluble protein. Here we report the details of a new method for isolating anti-HIV-1 specific B cells based on capturing cells that produce antibodies to cell surface-expressed gp160ÎcBaL. While this method is far less efficient than sorting with soluble envelope proteins, it isolated broadly neutralizing anti-HIV-1 antibodies that bind cell surface-expressed gp160ÎcBaL but not soluble envelope proteins.
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Authors
Christian Gaebler, Henning Gruell, Klara Velinzon, Johannes F. Scheid, Michel C. Nussenzweig, Florian Klein,