Evidence map›Paper›PMID 24927560›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2014

Influenza hemagglutinin stem-fragment immunogen elicits broadly neutralizing antibodies and confers heterologous protection.

Vamsee V A Mallajosyula, Michael Citron, Francesca Ferrara, Xianghan Lu, Cheryl Callahan, Gwendolyn J Heidecker, Siddhartha P Sarma, Jessica A Flynn, Nigel J Temperton, Xiaoping Liang and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 139 papers.

0numbers the graph read from it
0cells of the map it votes in
139citing papers in PubMed
12.9field-weighted citation impact, top 1% 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

139 citing papers in PubMed, 199 citations in OpenAlex.

  1. Trial
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  4. Aging restricts maturation of CXCL13bioRxiv : the preprint server for biology · 2026
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  14. Structural characterization of influenza group 1 chimeric hemagglutinins as broad vaccine immunogens.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  15. Article
  16. Article
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  19. Article
  20. Vaccine design via antigen reorientation.Nature chemical biology · 2024
    Article

79 more citing papers are in PubMed but not listed here.

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

11 authors at 4 institutions in 3 countries.

Vamsee V A MallajosyulaMolecular Biophysics Unit, Indian Institute of Science, Bangalore 560 012, India;
Michael CitronMerck Research Laboratories, West Point, PA 19486; and.
Francesca FerraraViral Pseudotype Unit, Medway School of Pharmacy, University of Kent, Chatham Maritime ME4 4TB, United Kingdom.
Xianghan LuMerck Research Laboratories, West Point, PA 19486; and.
Cheryl CallahanMerck Research Laboratories, West Point, PA 19486; and.
Gwendolyn J HeideckerMerck Research Laboratories, West Point, PA 19486; and.
Siddhartha P SarmaMolecular Biophysics Unit, Indian Institute of Science, Bangalore 560 012, India;
Jessica A FlynnMerck Research Laboratories, West Point, PA 19486; and.
Nigel J TempertonViral Pseudotype Unit, Medway School of Pharmacy, University of Kent, Chatham Maritime ME4 4TB, United Kingdom.
Xiaoping LiangMerck Research Laboratories, West Point, PA 19486; and varadar@mbu.iisc.ernet.in liangxiaoping@walvax.com.
Raghavan VaradarajanMolecular Biophysics Unit, Indian Institute of Science, Bangalore 560 012, India; varadar@mbu.iisc.ernet.in liangxiaoping@walvax.com.
United States Military Academy · USIndian Institute of Science Bangalore · INMedway School of Pharmacy · GBUniversity of Kent · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Influenza hemagglutinin (HA) is the primary target of the humoral response during infection/vaccination. Current influenza vaccines typically fail to elicit/boost broadly neutralizing antibodies (bnAbs), thereby limiting their efficacy. Although several bnAbs bind to the conserved stem domain of HA, focusing the immune response to this conserved stem in the presence of the immunodominant, variable head domain of HA is challenging. We report the design of a thermotolerant, disulfide-free, and trimeric HA stem-fragment immunogen which mimics the native, prefusion conformation of HA and binds conformation specific bnAbs with high affinity. The immunogen elicited bnAbs that neutralized highly divergent group 1 (H1 and H5 subtypes) and 2 (H3 subtype) influenza virus strains in vitro. Stem immunogens designed from unmatched, highly drifted influenza strains conferred robust protection against a lethal heterologous A/Puerto Rico/8/34 virus challenge in vivo. Soluble, bacterial expression of such designed immunogens allows for rapid scale-up during pandemic outbreaks.

Indexed as

Hemagglutinin Glycoproteins, Influenza VirusInfluenza A Virus, H1N1 SubtypeAnimalsAntibodies, NeutralizingAntibodies, ViralCross ReactionsFemaleMice, Inbred BALB COrthomyxoviridae InfectionsProtein Structure, TertiaryAntibodies, NeutralizingAntibodies, ViralH1N1 virus hemagglutininHemagglutinin Glycoproteins, Influenza Viruscross-protectionEscherichia colihemagglutinin stalkpandemic preparednessstabilization

Identifiers

PMID24927560
PMCPMC4078824
OpenAlexW2014180504

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.