ArticlePLoS pathogens2016
Antibody-Mediated Internalization of Infectious HIV-1 Virions Differs among Antibody Isotypes and Subclasses.
Article in PLoS pathogens, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 101 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
101 citing papers in PubMed, 127 citations in OpenAlex.
- Effects of sex but not race and geographic origin on vaccine-induced HIV-specific antibody responses.Frontiers in immunology · 2025Trial
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- Antibody Fc effector functions and IgG3 associate with decreased HIV-1 risk.The Journal of clinical investigation · 2019Trial
- DNA priming and gp120 boosting induces HIV-specific antibodies in a randomized clinical trial.The Journal of clinical investigation · 2019Trial
- HCMV glycoprotein B subunit vaccine efficacy mediated by nonneutralizing antibody effector functions.Proceedings of the National Academy of Sciences of the United States of America · 2018Trial
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- Extended hinge length of human IgG3-like antibody enhances early antiviral activity of VRC01 in SHIV-infected rhesus macaques.Journal of virology · 2026Article
- A phase 1 randomized controlled trial to evaluate the safety and immunogenicity of a HIV monomeric gp120 protein B-cell lineage targeting HIV vaccine in healthy adults.medRxiv : the preprint server for health sciences · 2026Article
- Coordinated immune response distinguishes duration of SARS-CoV-2 viral particle shedding in humans.iScience · 2026Article
- Virus particle-based antibody-dependent cellular phagocytosis assay for HIV.Frontiers in immunology · 2026Article
- Glycan-reactive antibodies isolated from human HIV-1 vaccine trial participants show broad pathogen cross-reactivity.Journal of virology · 2025Article
- Functional Activity of HIV-1 bNAbs Across Diverse Strains is Driven by Binding Site and Can be Enhanced Through Fc Engineering.bioRxiv : the preprint server for biology · 2025Article
- Identifying correlates of viral rebound timing and viral control in SHIV-infected infant macaques after ART interruption.Science translational medicine · 2025Article
- Development of a Virus Particle-Based Antibody-Dependent Cellular Phagocytosis (ADCP) Assay for HIV.bioRxiv : the preprint server for biology · 2025Article
- Review
- Computationally Selected Multivalent HIV-1 Subtype C Vaccine Protects Against Heterologous SHIV Challenge.Vaccines · 2025Article
- Imaging Flow Cytometry in HIV Infection Research: Advantages and Opportunities.Methods and protocols · 2025Review
41 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
15 authors at 2 institutions in 2 countries.
Funding
Abstract
Emerging data support a role for antibody Fc-mediated antiviral activity in vaccine efficacy and in the control of HIV-1 replication by broadly neutralizing antibodies. Antibody-mediated virus internalization is an Fc-mediated function that may act at the portal of entry whereby effector cells may be triggered by pre-existing antibodies to prevent HIV-1 acquisition. Understanding the capacity of HIV-1 antibodies in mediating internalization of HIV-1 virions by primary monocytes is critical to understanding their full antiviral potency. Antibody isotypes/subclasses differ in functional profile, with consequences for their antiviral activity. For instance, in the RV144 vaccine trial that achieved partial efficacy, Env IgA correlated with increased risk of HIV-1 infection (i.e. decreased vaccine efficacy), whereas V1-V2 IgG3 correlated with decreased risk of HIV-1 infection (i.e. increased vaccine efficacy). Thus, understanding the different functional attributes of HIV-1 specific IgG1, IgG3 and IgA antibodies will help define the mechanisms of immune protection. Here, we utilized an in vitro flow cytometric method utilizing primary monocytes as phagocytes and infectious HIV-1 virions as targets to determine the capacity of Env IgA (IgA1, IgA2), IgG1 and IgG3 antibodies to mediate HIV-1 infectious virion internalization. Importantly, both broadly neutralizing antibodies (i.e. PG9, 2G12, CH31, VRC01 IgG) and non-broadly neutralizing antibodies (i.e. 7B2 mAb, mucosal HIV-1+ IgG) mediated internalization of HIV-1 virions. Furthermore, we found that Env IgG3 of multiple specificities (i.e. CD4bs, V1-V2 and gp41) mediated increased infectious virion internalization over Env IgG1 of the same specificity, while Env IgA mediated decreased infectious virion internalization compared to IgG1. These data demonstrate that antibody-mediated internalization of HIV-1 virions depends on antibody specificity and isotype. Evaluation of the phagocytic potency of vaccine-induced antibodies and therapeutic antibodies will enable a better understanding of their capacity to prevent and/or control HIV-1 infection in vivo.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.