The DOI matches its Crossref record; 73 of the 73 references it cites were found in a registry or an index.
Broadly Neutralizing Antibody Responses in a Large Longitudinal Sub-Saharan HIV Primary Infection Cohort
Open accessAbstract
Broadly neutralizing antibodies (bnAbs) are thought to be a critical component of a protective HIV vaccine. However, designing vaccines immunogens able to elicit bnAbs has proven unsuccessful to date. Understanding the correlates and immunological mechanisms leading to the development of bnAb responses during natural HIV infection is thus critical to the design of a protective vaccine. The IAVI Protocol C program investigates a large longitudinal cohort of primary HIV-1 infection in Eastern and South Africa. Development of neutralization was evaluated in 439 donors using a 6 cross-clade pseudo-virus panel predictive of neutralization breadth on larger panels. About 15% of individuals developed bnAb responses, essentially between year 2 and year 4 of infection. Statistical analyses revealed no influence of gender, age or geographical origin on the development of neutralization breadth. However, cross-clade neutralization strongly correlated with high viral load as well as with low CD4 T cell counts, subtype-C infection and HLA-A*03(-) genotype. A correlation with high overall plasma IgG levels and anti-Env IgG binding titers was also found. The latter appeared not associated with higher affinity, suggesting a greater diversity of the anti-Env responses in broad neutralizers. Broadly neutralizing activity targeting glycan-dependent epitopes, largely the N332-glycan epitope region, was detected in nearly half of the broad neutralizers while CD4bs and gp41-MPER bnAb responses were only detected in very few individuals. Together the findings suggest that both viral and host factors are critical for the development of bnAbs and that the HIV Env N332-glycan supersite may be a favorable target for vaccine design.
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Cites
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CXCL13 is a plasma biomarker of germinal center activity
Havenar-Daughton, C., Lindqvist, M., Heit, A., Wu, J. E., Reiss, S. M., Kendric, K., Bélanger, S., Kasturi, S. P., Landais, E., Akondy, R. S., et al. (2016) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1520112113 · Cited by 353
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Characterization of HIV-1 Nucleoside-Modified mRNA Vaccines in Rabbits and Rhesus Macaques
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(2026) · doi:10.1073/pnas.2532810123 · Cited by 8
Metadata
- Authors
- Landais, E., Huang, X., Havenar-Daughton, C., Murrell, B., Price, M. A., Wickramasinghe, L., Ramos, A., Bian, C. B., Simek, M., Allen, S., Karita, E., Kilembe, W., Lakhi, S., Inambao, M., Kamali, A., Sanders, E. J., Anzala, O., Edward, V., Bekker, L.-G., Tang, J., Gilmour, J., Kosakovsky-Pond, S. L., Phung, P., Wrin, T., Crotty, S., Godzik, A., & Poignard, P.
- Venue
- PLOS Pathogens
- Publisher
- Public Library of Science (PLoS)
- Published
- 2016-01-14
- Volume
- 12
- Issue
- 1
- Pages
- e1005369
- ISSN
- 1553-7366 (ISSN-L)
- 1553-7374
- OpenAlex
- W2235599671
- Cited by
- 265
- References
- 73
- FWCI
- 29.25
- Type
- journal article
- Language
- en
- Open access
- gold
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- Landais, E., Huang, X., Havenar-Daughton, C., Murrell, B., Price, M. A., Wickramasinghe, L., Ramos, A., Bian, C. B., Simek, M., Allen, S., Karita, E., Kilembe, W., Lakhi, S., Inambao, M., Kamali, A., Sanders, E. J., Anzala, O., Edward, V., Bekker, L.-G., . . . Poignard, P. (2016). Broadly Neutralizing Antibody Responses in a Large Longitudinal Sub-Saharan HIV Primary Infection Cohort. PLOS Pathogens. https://doi.org/10.1371/journal.ppat.1005369
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