TY - JOUR
T1 - HLA class II genes modulate vaccine-induced antibody responses to affect HIV-1 acquisition
AU - Prentice, Heather A.
AU - Tomaras, Georgia D.
AU - Geraghty, Daniel E.
AU - Apps, Richard
AU - Fong, Youyi
AU - Ehrenberg, Philip K.
AU - Rolland, Morgane
AU - Kijak, Gustavo H.
AU - Krebs, Shelly J.
AU - Nelson, Wyatt
AU - DeCamp, Allan
AU - Shen, Xiaoying
AU - Yates, Nicole L.
AU - Zolla-Pazner, Susan
AU - Nitayaphan, Sorachai
AU - Rerks-Ngarm, Supachai
AU - Kaewkungwal, Jaranit
AU - Pitisuttithum, Punnee
AU - Ferrari, Guido
AU - McElrath, M. Juliana
AU - Montefiori, David C.
AU - Bailer, Robert T.
AU - Koup, Richard A.
AU - O'Connell, Robert J.
AU - Robb, Merlin L.
AU - Michael, Nelson L.
AU - Gilbert, Peter B.
AU - Kim, Jerome H.
AU - Thomas, Rasmi
N1 - Publisher Copyright:
© 2015, American Association for the Advancement of Science. All rights reserved.
PY - 2015/7/15
Y1 - 2015/7/15
N2 - In the RV144 vaccine trial, two antibody responses were found to correlate with HIV-1 acquisition. Because human leukocyte antigen (HLA) class II-restricted CD4+ T cells are involved in antibody production, we tested whether HLA class II genotypes affected HIV-1-specific antibody levels and HIV-1 acquisition in 760 individuals. Indeed, antibody responses correlated with acquisition only in the presence of single host HLA alleles. Envelope (Env)-specific immunoglobulin A (IgA) antibodies were associated with increased risk of acquisition specifically in individuals with DQB1∗06. IgG antibody responses to Env amino acid positions 120 to 204 were higher and were associated with decreased risk of acquisition and increased vaccine efficacy only in the presence of DPB1∗13. Screening IgG responses to overlapping peptides spanning Env 120-204 and viral sequence analysis of infected individuals defined differences in vaccine response that were associated with the presence of DPB1∗13 and could be responsible for the protection observed. Overall, the underlying genetic findings indicate that HLA class II modulated the quantity, quality, and efficacy of antibody responses in the RV144 trial.
AB - In the RV144 vaccine trial, two antibody responses were found to correlate with HIV-1 acquisition. Because human leukocyte antigen (HLA) class II-restricted CD4+ T cells are involved in antibody production, we tested whether HLA class II genotypes affected HIV-1-specific antibody levels and HIV-1 acquisition in 760 individuals. Indeed, antibody responses correlated with acquisition only in the presence of single host HLA alleles. Envelope (Env)-specific immunoglobulin A (IgA) antibodies were associated with increased risk of acquisition specifically in individuals with DQB1∗06. IgG antibody responses to Env amino acid positions 120 to 204 were higher and were associated with decreased risk of acquisition and increased vaccine efficacy only in the presence of DPB1∗13. Screening IgG responses to overlapping peptides spanning Env 120-204 and viral sequence analysis of infected individuals defined differences in vaccine response that were associated with the presence of DPB1∗13 and could be responsible for the protection observed. Overall, the underlying genetic findings indicate that HLA class II modulated the quantity, quality, and efficacy of antibody responses in the RV144 trial.
UR - http://www.scopus.com/inward/record.url?scp=84937131006&partnerID=8YFLogxK
U2 - 10.1126/scitranslmed.aab4005
DO - 10.1126/scitranslmed.aab4005
M3 - Article
C2 - 26180102
AN - SCOPUS:84937131006
SN - 1946-6234
VL - 7
JO - Science Translational Medicine
JF - Science Translational Medicine
IS - 296
M1 - 296ra112
ER -