Evidence map›Paper›PMID 24059682›Full record

ArticleRetrovirology2013

HIV-1 envelope glycoprotein signatures that correlate with the development of cross-reactive neutralizing activity.

Tom L G M van den Kerkhof, K Anton Feenstra, Zelda Euler, Marit J van Gils, Linda W E Rijsdijk, Brigitte D Boeser-Nunnink, Jaap Heringa, Hanneke Schuitemaker, Rogier W Sanders

Abstract read
In one paragraph

Article in Retrovirology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
–field-weighted citation impact
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

29 citing papers in PubMed.

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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

9 authors.

Tom L G M van den KerkhofDepartment of Medical Microbiology, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands. r.w.sanders@amc.uva.nl.
K Anton Feenstra
Zelda Euler
Marit J van Gils
Linda W E Rijsdijk
Brigitte D Boeser-Nunnink
Jaap Heringa
Hanneke Schuitemaker
Rogier W Sanders

Funding

European Research Council 280829
6 · The paper itself

Abstract

backgroundCurrent HIV-1 envelope glycoprotein (Env) vaccines are unable to induce cross-reactive neutralizing antibodies. However, such antibodies are elicited in 10-30% of HIV-1 infected individuals, but it is unknown why these antibodies are induced in some individuals and not in others. We hypothesized that the Envs of early HIV-1 variants in individuals who develop cross-reactive neutralizing activity (CrNA) might have unique characteristics that support the induction of CrNA.

resultsWe retrospectively generated and analyzed env sequences of early HIV-1 clonal variants from 31 individuals with diverse levels of CrNA 2-4 years post-seroconversion. These sequences revealed a number of Env signatures that coincided with CrNA development. These included a statistically shorter variable region 1 and a lower probability of glycosylation as implied by a high ratio of NXS versus NXT glycosylation motifs. Furthermore, lower probability of glycosylation at position 332, which is involved in the epitopes of many broadly reactive neutralizing antibodies, was associated with the induction of CrNA. Finally, Sequence Harmony identified a number of amino acid changes associated with the development of CrNA. These residues mapped to various Env subdomains, but in particular to the first and fourth variable region as well as the underlying α2 helix of the third constant region.

conclusionsThese findings imply that the development of CrNA might depend on specific characteristics of early Env. Env signatures that correlate with the induction of CrNA might be relevant for the design of effective HIV-1 vaccines.

Indexed as

Antibodies, NeutralizingCohort StudiesCross Reactionsenv Gene Products, Human Immunodeficiency VirusGlycoproteinsHIV-1HIV AntibodiesHumansAntibodies, Neutralizingenv Gene Products, Human Immunodeficiency VirusGlycoproteinsHIV Antibodies

Identifiers

PMID24059682
PMCPMC3849187

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Registered trials

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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.