The phase III RV144 HIV-1 vaccine trial estimated vaccine efficacy (VE) to be 31.2%. This trial demonstrated that the presence of HIV-1–specific IgG-binding Abs to envelope (Env) V1V2 inversely correlated with infection risk, while the presence of Env-specific plasma IgA Abs directly correlated with risk of HIV-1 infection. Moreover, Ab-dependent cellular cytotoxicity responses inversely correlated with risk of infection in vaccine recipients with low IgA; therefore, we hypothesized that vaccine-induced Fc receptor–mediated (FcR-mediated) Ab function is indicative of vaccine protection. We sequenced exons and surrounding areas of FcR-encoding genes and found one
Shuying S. Li, Peter B. Gilbert, Georgia D. Tomaras, Gustavo Kijak, Guido Ferrari, Rasmi Thomas, Chul-Woo Pyo, Susan Zolla-Pazner, David Montefiori, Hua-Xin Liao, Gary Nabel, Abraham Pinter, David T. Evans, Raphael Gottardo, James Y. Dai, Holly Janes, Daryl Morris, Youyi Fong, Paul T. Edlefsen, Fusheng Li, Nicole Frahm, Michael D. Alpert, Heather Prentice, Supachai Rerks-Ngarm, Punnee Pitisuttithum, Jaranit Kaewkungwal, Sorachai Nitayaphan, Merlin L. Robb, Robert J. O’Connell, Barton F. Haynes, Nelson L. Michael, Jerome H. Kim, M. Juliana McElrath, Daniel E. Geraghty
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