Evidence map›Paper›PMID 28604155›Full record

ArticleHuman vaccines & immunotherapeutics2017

The importance of RSV F protein conformation in VLPs in stimulation of neutralizing antibody titers in mice previously infected with RSV.

Lori M Cullen, Madelyn R Schmidt, Trudy G Morrison

Open access · hybridAbstract read
In one paragraph

Article in Human vaccines & immunotherapeutics, 2017. 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
2.4field-weighted citation impact, top 11% 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, 31 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

3 authors at 1 institution in 1 country.

Lori M Cullena Department of Microbiology and Physiological Systems, Sherman Center , University of Massachusetts Medical School , Worcester , MA , USA.
Madelyn R Schmidta Department of Microbiology and Physiological Systems, Sherman Center , University of Massachusetts Medical School , Worcester , MA , USA.
Trudy G Morrisona Department of Microbiology and Physiological Systems, Sherman Center , University of Massachusetts Medical School , Worcester , MA , USA.
University of Massachusetts Chan Medical School · US

Funding

Role of F Protein Conformation in RSV Vaccine EfficacyR56AI114809 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI MORRISON, TRUDY G. · 2016 to 2016
$634k
NIAID NIH HHS R56 AI114809
6 · The paper itself

Abstract

Respiratory syncytial virus (RSV) is a significant respiratory pathogen but no vaccine is available. RSV infections present 2 major, unique problems. First, humans can experience repeated infections caused by the same virus sero-group indicating that protective memory responses to RSV infection are defective. Second, most people have been infected with RSV by age 5. Immune responses to these infections, while poorly protective, could impact the effectiveness of a vaccine. The goal of this study was to assess the generation of protective immune responses in mice previously infected with RSV by virus-like particle (VLP) vaccine candidates containing a stabilized pre-fusion form of the RSV F protein or a stabilized post-fusion F protein. We report that a single immunization of RSV-experienced animals with a stabilized pre-fusion F protein VLP stimulated high titers of neutralizing antibody while a single injection of a post-fusion F protein VLP or a second RSV infection only weakly stimulated neutralizing antibody titers. These results suggest that prior RSV infection can induce neutralizing antibody memory responses, which can be activated by pre-F protein VLPs but not by post-F protein VLPs or a subsequent infection. Thus the F protein conformation has a major impact on enhancing production of neutralizing antibodies in RSV-experienced animals. Furthermore, although both VLPs contained the same RSV G protein, the pre-F VLP stimulated significantly higher titers of total anti-G protein IgG than the post-F VLP in both naïve and RSV-experienced animals. Thus the F protein conformation also influences anti-G protein responses.

Indexed as

AnimalsAntibodies, NeutralizingAntibodies, ViralFemaleImmunization, SecondaryImmunologic MemoryMice, Inbred BALB CProtein ConformationVaccines, Virus-Like ParticleViral Fusion ProteinsAntibodies, NeutralizingAntibodies, ViralF protein, human respiratory syncytial virusVaccines, Virus-Like ParticleViral Fusion ProteinsF protein antibodiesG protein antibodiesrespiratory syncytial virusvaccinevirus-like particles

Identifiers

PMID28604155
PMCPMC5718826
OpenAlexW2626011172

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.