Evidence map›Paper›PMID 24069496›Full record

ArticlePLoS neglected tropical diseases2013

Analysis of cross-reactive antibodies recognizing the fusion loop of envelope protein and correlation with neutralizing antibody titers in Nicaraguan dengue cases.

Chih-Yun Lai, Katherine L Williams, Yi-Chieh Wu, Sarah Knight, Angel Balmaseda, Eva Harris, Wei-Kung Wang

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
6.2field-weighted citation impact, top 4% 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

49 citing papers in PubMed, 71 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 2 institutions in 1 country.

Chih-Yun LaiDepartment of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, United States of America.
Katherine L Williams
Yi-Chieh Wu
Sarah Knight
Angel Balmaseda
Eva Harris
Wei-Kung Wang
University of California, Berkeley · USUniversity of Hawaiʻi at Mānoa · US

Funding

Pacific Center for Emerging Infectious Diseases ResearchP20GM103516 · NIGMS · UNIVERSITY OF HAWAII AT MANOA · PI YANAGIHARA, RICHARD · 2012 to 2014
$6.1M
Determinants of protection and enhancement of dengue infection/disease in vivoR01AI085607 · NIAID · UNIVERSITY OF CALIFORNIA BERKELEY · PI HARRIS, EVA · 2010 to 2013
$1.5M
NIAID NIH HHS R01 AI085607NIGMS NIH HHS P20 GM103516NIGMS NIH HHS P20GM103516
6 · The paper itself

Abstract

Dengue virus (DENV) is the leading cause of arboviral diseases in humans worldwide. The envelope (E) protein of DENV is the major target of neutralizing antibodies (Abs). Previous studies have shown that a significant proportion of anti-E Abs in human serum after DENV infection recognize the highly conserved fusion loop (FL) of E protein. The role of anti-FL Abs in protection against subsequent DENV infection versus pathogenesis remains unclear. A human anti-E monoclonal Ab was used as a standard in a virion-capture ELISA to measure the concentration of anti-E Abs, [anti-E Abs], in dengue-immune sera from Nicaraguan patients collected 3, 6, 12 and 18 months post-infection. The proportion of anti-FL Abs was determined by capture ELISA using virus-like particles containing mutations in FL, and the concentration of anti-FL Abs, [anti-FL Abs], was calculated. Neutralization titers (NT50) were determined using a previously described flow cytometry-based assay. Analysis of sequential samples from 10 dengue patients revealed [anti-E Abs] and [anti-FL Abs] were higher in secondary than in primary DENV infections. While [anti-FL Abs] did not correlate with NT50 against the current infecting serotype, it correlated with NT50 against the serotypes to which patients had likely not yet been exposed ("non-exposed" serotypes) in 14 secondary DENV3 and 15 secondary DENV2 cases. These findings demonstrate the kinetics of anti-FL Abs and provide evidence that anti-FL Abs play a protective role against "non-exposed" serotypes after secondary DENV infection.

Indexed as

Cross ReactionsAdolescentAntibodies, NeutralizingAntibodies, ViralChildChild, PreschoolDengueDengue VirusEnzyme-Linked Immunosorbent AssayFemaleFlow CytometryHumansInfantMaleNeutralization TestsNicaraguaAntibodies, NeutralizingAntibodies, ViralViral Fusion Proteins

Identifiers

PMID24069496
PMCPMC3777924
OpenAlexW2005355109

What OpenQuestion holds

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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.