Evidence map›Paper›PMID 24967706›Full record

ArticlePloS one2014

Modeling neutralization kinetics of HIV by broadly neutralizing monoclonal antibodies in genital secretions coating the cervicovaginal mucosa.

Scott A McKinley, Alex Chen, Feng Shi, Simi Wang, Peter J Mucha, M Gregory Forest, Samuel K Lai

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.0field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 35 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 1 country.

Scott A McKinleyMathematics Department, University of Florida, Gainesville, Florida, United States of America.
Alex ChenDepartments of Mathematics and Applied Physical Science, University of North Carolina - Chapel Hill, Chapel Hill, North Carolina, United States of America; Statistical and Applied Mathematical Sciences Institute, Research Triangle Park, North Carolina, United States of America.
Feng ShiDepartments of Mathematics and Applied Physical Science, University of North Carolina - Chapel Hill, Chapel Hill, North Carolina, United States of America.
Simi WangDepartments of Mathematics and Applied Physical Science, University of North Carolina - Chapel Hill, Chapel Hill, North Carolina, United States of America.
Peter J MuchaDepartments of Mathematics and Applied Physical Science, University of North Carolina - Chapel Hill, Chapel Hill, North Carolina, United States of America.
M Gregory ForestDepartments of Mathematics and Applied Physical Science, University of North Carolina - Chapel Hill, Chapel Hill, North Carolina, United States of America; UNC/NCSU Joint Department of Biomedical Engineering, University of North Carolina - Chapel Hill, Chapel Hill, North Carolina, United States of America.
Samuel K LaiDivision of Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina - Chapel Hill, Chapel Hill, North Carolina, United States of America; UNC/NCSU Joint Department of Biomedical Engineering, University of North Carolina - Chapel Hill, Chapel Hill, North Carolina, United States of America.
Applied Physical Sciences (United States) · USUNC/NCSU Joint Department of Biomedical Engineering · USStatistical and Applied Mathematical Sciences Institute · USUniversity of Florida · US

Funding

Virology, Immunology, and Microbiology CoreP30AI050410 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DAVID M. MARGOLIS · 2001 to 2026
$76.9M
Vaginal mAB Delivery SystemsU19AI096398 · NIAID · BOSTON UNIVERSITY MEDICAL CAMPUS · PI ANDERSON, DEBORAH J, MOENCH, THOMAS RAY · 2011 to 2016
$15.0M
Trapping HIV in mucus with IgG antibodiesR21AI093242 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI LAI, SAMUEL · 2011 to 2012
$403k
NIAID NIH HHS P30 AI050410NIAID NIH HHS R21 AI093242NIAID NIH HHS R21AI093242NIAID NIH HHS U19 AI096398NIAID NIH HHS U19AI096398
6 · The paper itself

Abstract

Eliciting broadly neutralizing antibodies (bnAb) in cervicovaginal mucus (CVM) represents a promising "first line of defense" strategy to reduce vaginal HIV transmission. However, it remains unclear what levels of bnAb must be present in CVM to effectively reduce infection. We approached this complex question by modeling the dynamic tally of bnAb coverage on HIV. This analysis introduces a critical, timescale-dependent competition: to protect, bnAb must accumulate at sufficient stoichiometry to neutralize HIV faster than virions penetrate CVM and reach target cells. We developed a model that incorporates concentrations and diffusivities of HIV and bnAb in semen and CVM, kinetic rates for binding (kon) and unbinding (koff) of select bnAb, and physiologically relevant thicknesses of CVM and semen layers. Comprehensive model simulations lead to robust conclusions about neutralization kinetics in CVM. First, due to the limited time virions in semen need to penetrate CVM, substantially greater bnAb concentrations than in vitro estimates must be present in CVM to neutralize HIV. Second, the model predicts that bnAb with more rapid kon, almost independent of koff, should offer greater neutralization potency in vivo. These findings suggest the fastest arriving virions at target cells present the greatest likelihood of infection. It also implies the marked improvements in in vitro neutralization potency of many recently discovered bnAb may not translate to comparable reduction in the bnAb dose needed to confer protection against initial vaginal infections. Our modeling framework offers a valuable tool to gaining quantitative insights into the dynamics of mucosal immunity against HIV and other infectious diseases.

Indexed as

Models, BiologicalAntibodies, NeutralizingCervix Uterienv Gene Products, Human Immunodeficiency VirusFemaleHIV-1HIV AntibodiesHumansKineticsMucous MembraneVaginaVirionAntibodies, Neutralizingenv Gene Products, Human Immunodeficiency VirusHIV Antibodies

Identifiers

PMID24967706
PMCPMC4072659
OpenAlexW1978094300

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.