Evidence map›Paper›PMID 22031948›Full record

ArticleJournal of virology2012

Broad and potent neutralizing antibody responses elicited in natural HIV-2 infection.

Rui Kong, Hui Li, Frederic Bibollet-Ruche, Julie M Decker, Natalie N Zheng, Geoffrey S Gottlieb, Nancy B Kiviat, Papa Salif Sow, Ivelin Georgiev, Beatrice H Hahn and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

40 citing papers in PubMed, 58 citations in OpenAlex.

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  15. The role of SAMHD1 expression and its relation to HIV-2 (Vpx) gene production.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2018
    Review
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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

13 authors at 6 institutions in 2 countries.

Rui KongDepartments of Microbiology and Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA.
Hui Li
Frederic Bibollet-Ruche
Julie M Decker
Natalie N Zheng
Geoffrey S Gottlieb
Nancy B Kiviat
Papa Salif Sow
Ivelin Georgiev
Beatrice H Hahn
Peter D Kwong
James E Robinson
George M Shaw
University of Pennsylvania · USUniversity of Washington · USNational Institutes of Health · USUniversity of Alabama at Birmingham · USCentre Hospitalier National Universitaire de Fann · SNUniversity Medical Center New Orleans · US

Funding

Viral Sequencing CoreU19AI067854 · NIAID · DUKE UNIVERSITY · PI BHARDWAJ, NINA · 2006 to 2011
$290.5M
Neutralization Mechanisms Of Anti-HIV-1 Monoclonal AntibodiesZIAAI005022 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI ZHOU, TONGQING · 2009 to 2025
$24.6M
Mechanisms Of Humoral EvasionZIAAI005023 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI ZHOU, TONGQING · 2009 to 2025
$18.6M
Viral and Host Determinants of HIV-1 TransmissionU01AI067854 · NIAID · DUKE UNIVERSITY · PI HAYNES, BARTON F · 2005 to 2005
$14.9M
Novel SIVsmm strains for analysis of mucosal transmission and vaccine protectionP01AI088564 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SHAW, GEORGE M · 2010 to 2014
$12.7M
Antiretroviral Therapy for HIV-2 Infection in SenegalR01AI060466 · NIAID · UNIVERSITY OF WASHINGTON · PI GOTTLIEB, GEOFFREY SCOTT · 2005 to 2014
$6.5M
Penile transmission and neutralization of pathogenic SIVsmmR01AI094604 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI SHAW, GEORGE M · 2011 to 2015
$3.6M
Cloning, characterization and in vivo testing of mucosally transmitted SIVR33AI087383 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI SHAW, GEORGE M · 2013 to 2015
$1.4M
Cloning, characterization and in vivo testing of mucosally transmitted SIVR21AI087383 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI SHAW, GEORGE M · 2010 to 2011
$413k
NIAID NIH HHS AI67854NIAID NIH HHS AI87383NIAID NIH HHS AI88564NIAID NIH HHS P01 AI088564NIAID NIH HHS R01 AI060466NIAID NIH HHS R01 AI094604NIAID NIH HHS R21 AI087383NIAID NIH HHS R33 AI087383NIAID NIH HHS U01 AI067854NIAID NIH HHS U19 AI067854
6 · The paper itself

Abstract

Compared with human immunodeficiency virus type 1 (HIV-1), little is known about the susceptibility of HIV-2 to antibody neutralization. We characterized the potency and breadth of neutralizing antibody (NAb) responses in 64 subjects chronically infected with HIV-2 against three primary HIV-2 strains: HIV-2(7312A), HIV-2(ST), and HIV-2(UC1). Surprisingly, we observed in a single-cycle JC53bl-13/TZM-bl virus entry assay median reciprocal 50% inhibitory concentration (IC(50)) NAb titers of 1.7 × 10(5), 2.8 × 10(4), and 3.3 × 10(4), respectively. A subset of 5 patient plasma samples tested against a larger panel of 17 HIV-2 strains where the extracellular gp160 domain was substituted into the HIV-2(7312A) proviral backbone showed potent neutralization of all but 4 viruses. The specificity of antibody neutralization was confirmed using IgG purified from patient plasma, HIV-2 Envs cloned by single-genome amplification, viruses grown in human CD4(+) T cells and tested for neutralization sensitivity on human CD4(+) T target cells, and, as negative controls, env-minus viruses pseudotyped with HIV-1, vesicular stomatitis virus, or murine leukemia virus Env glycoproteins. Human monoclonal antibodies (MAbs) specific for HIV-2 V3 (6.10F), V4 (1.7A), CD4 binding site (CD4bs; 6.10B), CD4 induced (CD4i; 1.4H), and membrane-proximal external region (MPER; 4E10) epitopes potently neutralized the majority of 32 HIV-2 strains bearing Envs from 13 subjects. Patient antibodies competed with V3, V4, and CD4bs MAbs for binding to monomeric HIV-2 gp120 at titers that correlated significantly with NAb titers. HIV-2 MPER antibodies did not contribute to neutralization breadth or potency. These findings indicate that HIV-2 Env is highly immunogenic in natural infection, that high-titer broadly neutralizing antibodies are commonly elicited, and that unlike HIV-1, native HIV-2 Env trimers expose multiple broadly cross-reactive epitopes readily accessible to NAbs.

Indexed as

Amino Acid SequenceAntibodies, NeutralizingAntibody FormationCell LineHIV-1HIV-2HIV AntibodiesHIV Envelope Protein gp160HIV InfectionsHumansMolecular Sequence DataPhylogenySequence AlignmentAntibodies, Neutralizinggp160 protein, Human immunodeficiency virus 2HIV AntibodiesHIV Envelope Protein gp160

Identifiers

PMID22031948
PMCPMC3255805
OpenAlexW2102730046

What OpenQuestion holds

Textmetadata
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.