Evidence map›Paper›PMID 20661476›Full record

ArticlePloS one2010

An influenza A/H1N1/2009 hemagglutinin vaccine produced in Escherichia coli.

José M Aguilar-Yáñez, Roberto Portillo-Lara, Gonzalo I Mendoza-Ochoa, Sergio A García-Echauri, Felipe López-Pacheco, David Bulnes-Abundis, Johari Salgado-Gallegos, Itzel M Lara-Mayorga, Yenny Webb-Vargas, Felipe O León-Angel and 9 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.8field-weighted citation impact, top 7% 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

30 citing papers in PubMed, 65 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Design andInternational journal of molecular sciences · 2024
    Article
  5. Production of Influenza Virus Glycoproteins Using Insect Cells.Methods in molecular biology (Clifton, N.J.) · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Animal Cell Expression Systems.Advances in biochemical engineering/biotechnology · 2021
    Article
  11. Article
  12. Harnessing an RNA-mediated chaperone for the assembly of influenza hemagglutinin in an immunologically relevant conformation.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2018
    Article
  13. Article
  14. Vaccination with Killed but Metabolically ActiveJournal of nature and science · 2017
    Article
  15. Article
  16. Article
  17. Advances in the development of influenza virus vaccines.Nature reviews. Drug discovery · 2015
    Review
  18. Article
  19. Article
  20. Article
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

19 authors at 2 institutions in 2 countries.

José M Aguilar-YáñezCentro de Biotecnología-FEMSA, Tecnológico de Monterrey at Monterrey, Monterrey, México.
Roberto Portillo-Lara
Gonzalo I Mendoza-Ochoa
Sergio A García-Echauri
Felipe López-Pacheco
David Bulnes-Abundis
Johari Salgado-Gallegos
Itzel M Lara-Mayorga
Yenny Webb-Vargas
Felipe O León-Angel
Ramón E Rivero-Aranda
Yuriana Oropeza-Almazán
Guillermo M Ruiz-Palacios
Manuel I Zertuche-Guerra
Rebecca M DuBois
Stephen W White
Stacey Schultz-Cherry
Charles J Russell
Mario M Alvarez
Tecnológico de Monterrey · MXSt. Jude Children's Research Hospital · US

Funding

Viral Vector Technology (VVTSR)P30CA021765 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI CHARLES ROBERTS · 1985 to 2026
$166.9M
NCI NIH HHS CA21765NCI NIH HHS P30 CA021765NIAID NIH HHS HHSN266200700005C
6 · The paper itself

Abstract

backgroundThe A/H1N1/2009 influenza pandemic made evident the need for faster and higher-yield methods for the production of influenza vaccines. Platforms based on virus culture in mammalian or insect cells are currently under investigation. Alternatively, expression of fragments of the hemagglutinin (HA) protein in prokaryotic systems can potentially be the most efficacious strategy for the manufacture of large quantities of influenza vaccine in a short period of time. Despite experimental evidence on the immunogenic potential of HA protein constructs expressed in bacteria, it is still generally accepted that glycosylation should be a requirement for vaccine efficacy. METHODOLOGY/PRINCIPAL

findingsWe expressed the globular HA receptor binding domain, referred to here as HA(63-286)-RBD, of the influenza A/H1N1/2009 virus in Escherichia coli using a simple, robust and scalable process. The recombinant protein was refolded and purified from the insoluble fraction of the cellular lysate as a single species. Recombinant HA(63-286)-RBD appears to be properly folded, as shown by analytical ultracentrifugation and bio-recognition assays. It binds specifically to serum antibodies from influenza A/H1N1/2009 patients and was found to be immunogenic, to be capable of triggering the production of neutralizing antibodies, and to have protective activity in the ferret model. CONCLUSIONS/SIGNIFICANCE: Projections based on our production/purification data indicate that this strategy could yield up to half a billion doses of vaccine per month in a medium-scale pharmaceutical production facility equipped for bacterial culture. Also, our findings demonstrate that glycosylation is not a mandatory requirement for influenza vaccine efficacy.

Indexed as

AnimalsAntibodies, ViralEnzyme-Linked Immunosorbent AssayEscherichia coliFerretsHemagglutinins, ViralHumansInfluenza A Virus, H1N1 SubtypeInfluenza VaccinesProtein FoldingReverse Transcriptase Polymerase Chain ReactionAntibodies, ViralHemagglutinins, ViralInfluenza Vaccines

Identifiers

PMID20661476
PMCPMC2908544
OpenAlexW2054982474

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.