Evidence map›Paper›PMID 22396600›Full record

ArticleThe Journal of infectious diseases2012

Transmembrane domain membrane proximal external region but not surface unit-directed broadly neutralizing HIV-1 antibodies can restrict dendritic cell-mediated HIV-1 trans-infection.

Manish Sagar, Hisashi Akiyama, Behzad Etemad, Nora Ramirez, Ines Freitas, Suryaram Gummuluru

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of infectious diseases, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

31 citing papers in PubMed, 41 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

6 authors at 3 institutions in 1 country.

Manish SagarDepartment of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. msagar@partners.org
Hisashi Akiyama
Behzad Etemad
Nora Ramirez
Ines Freitas
Suryaram Gummuluru
Boston University · USBrigham and Women's Hospital · USHarvard University · US

Funding

Mechanism of cell-associated HIV-1 transmissionR01AI064099 · NIAID · BOSTON UNIVERSITY MEDICAL CAMPUS · PI GUMMULURU, SURYARAM · 2005 to 2020
$5.9M
Mechanism of HIV-1 attachment to dendritic cellsR21AI081596 · NIAID · BOSTON UNIVERSITY MEDICAL CAMPUS · PI GUMMULURU, SURYARAM · 2009 to 2010
$445k
NIAID NIH HHS AI064099NIAID NIH HHS AI081596NIAID NIH HHS AI1077473NIAID NIH HHS R01 AI064099NIAID NIH HHS R21 AI081596
6 · The paper itself

Abstract

backgroundAlthough broadly neutralizing antibodies (bNAbs) have been shown to block a diverse array of cell-free human immunodeficiency type 1 (HIV-1) infections, it remains unclear whether these antibodies exhibit similar potency against mature dendritic cell (mDC)-mediated HIV-1 trans-infection.

methodsSensitivity to bNAbs targeting HIV-1 envelope surface unit gp120 (VRCO1, PG16, b12, and 2G12) and transmembrane domain gp41 (4E10 and 2F5) was examined for both cell-free and mDC-mediated infections of TZM-bl and CD4(+) T cells.

resultsCompared with cell-free infection, mDC-mediated infection was significantly less susceptible to gp120-directed bNAbs for the majority of virus isolates. A b12 antigen-binding fragment blocked both cell-free and mDC-mediated infection with equal efficiency. In contrast, cell-free and mDC-associated viruses were equally sensitive to gp41-directed bNAbs. Anti-gp41 bNAbs bound to the surface of mDCs and localized at the mDC-T cell synaptic junctions in the absence of virus.

conclusionsAnti-gp41 bNAbs have the potential to inhibit mDC-mediated HIV-1 infection because they bind plasma membranes prior to the formation of an infectious synapse, positioning them to neutralize subsequent virus transfer. As opposed to gp120-directed antibodies, anti-gp41 bNAbs might prevent HIV-1 infection if transmission or spread at the initial site of invasion occurs from a DC-associated source.

Indexed as

Antibodies, MonoclonalAntibodies, NeutralizingCD4-Positive T-LymphocytesCell-Free SystemCells, CulturedCoculture TechniquesDendritic CellsHIV-1HIV AntibodiesHIV Envelope Protein gp120HIV InfectionsHumansLipopolysaccharide ReceptorsMonocytesAntibodies, MonoclonalAntibodies, Neutralizinggp120 protein, Human immunodeficiency virus 1HIV AntibodiesHIV Envelope Protein gp120Lipopolysaccharide Receptors

Identifiers

PMID22396600
PMCPMC3308909
OpenAlexW2100825958

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.