Evidence map›Paper›PMID 24035433›Full record

ArticleVaccine2013

Meningococcal factor H-binding protein vaccines with decreased binding to human complement factor H have enhanced immunogenicity in human factor H transgenic mice.

Raffaella Rossi, Dan M Granoff, Peter T Beernink

Abstract read
In one paragraph

Article in Vaccine, 2013. 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
4.5field-weighted citation impact, top 5% 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, 35 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Eliminating Factor H-Binding Activity ofFrontiers in immunology · 2018
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. A meningococcal vaccine antigen engineered to increase thermal stability and stabilize protective epitopes.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  15. Article
  16. Article
  17. Article
  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

3 authors at 1 institution in 1 country.

Raffaella RossiCenter for Immunobiology and Vaccine Development, Children's Hospital Oakland Research Institute, 5700 Martin Luther King Jr. Way, Oakland, CA 94609, USA.
Dan M Granoff
Peter T Beernink
Developmental Studies Center · US

Funding

Novel vaccine strategies for prevention of N. meningitidis group B diseaseR01AI046464 · NIAID · OMVAX, INC. · PI MOE, GREGORY ROBERT · 2000 to 2024
$12.1M
An engineered meningococcal OMV vaccine for Africa against all capsular groupsR01AI082263 · NIAID · CHILDREN'S HOSPITAL & RES CTR AT OAKLAND · PI GRANOFF, DAN M. · 2010 to 2013
$2.1M
CONSTRUCTION OF THE VACCINE CENTERC06RR016226 · NCRR · CHILDREN'S HOSPITAL &RES CTR AT OAKLAND · PI LUCAS, ALEXANDER H. · 2002 to 2002
$2.0M
Improved mutant meningococcal factor H binding protein vaccinesR01AI099125 · NIAID · CHILDREN'S HOSPITAL & RES CTR AT OAKLAND · PI BEERNINK, PETER T. · 2012 to 2015
$1.9M
Identification of vaccine antigens based on expression in bloodR01AI070955 · NIAID · CHILDREN'S HOSPITAL & RES CTR AT OAKLAND · PI BEERNINK, PETER T. · 2008 to 2011
$1.6M
NCRR NIH HHS C06 RR016226NCRR NIH HHS C06 RR 16226NIAID NIH HHS AI 46464NIAID NIH HHS AI 82263NIAID NIH HHS AI 99125NIAID NIH HHS R01 AI046464NIAID NIH HHS R01 AI070955NIAID NIH HHS R01 AI082263NIAID NIH HHS R01 AI099125NIAID NIH HHS R01 AI 70955
6 · The paper itself

Abstract

Factor H-binding protein (fHbp) is a component of a meningococcal vaccine recently licensed in Europe for prevention of serogroup B disease, and a second vaccine in clinical development. The protein specifically binds human factor H (fH), which down-regulates complement activation and enhances resistance to bactericidal activity. There are conflicting data from studies in human fH transgenic mice on whether binding of human fH to fHbp vaccines decreases immunogenicity, and whether mutant fHbp vaccines with decreased fH binding have enhanced immunogenicity. fHbp can be classified into two sub-families based on sequence divergence and immunologic cross-reactivity. Previous studies of mutant fHbp vaccines with low fH binding were from sub-family B, which account for approximately 60% of serogroup B case isolates. In the present study, we evaluated the immunogenicity of two mutant sub-family A fHbp vaccines containing single substitutions, T221A or D211A, which resulted in 15- or 30-fold lower affinity for human fH, respectively, than the corresponding control wild-type fHbp vaccine. In transgenic mice with high serum concentrations of human fH, both mutant vaccines elicited significantly higher IgG titers and higher serum bactericidal antibody responses than the control fHbp vaccine that bound human fH. Thus, mutations introduced into a sub-family A fHbp antigen to decrease fH binding can increase protective antibody responses in human fH transgenic mice. Collectively the data suggest that mutant fHbp antigens with decreased fH binding will result in superior vaccines in humans.

Indexed as

Blood Bactericidal ActivityAmino Acid SubstitutionAnimalsAntibodies, BacterialAntigens, BacterialBacterial ProteinsFemaleHumansImmunoglobulin GMaleMeningococcal VaccinesMiceMice, TransgenicMutant ProteinsProtein BindingAntibodies, BacterialAntigens, BacterialBacterial Proteinsfactor H-binding protein, Neisseria meningitidisImmunoglobulin GMeningococcal VaccinesMutant ProteinsAnimal modelBactericidalfHfHbpMutant fHbp vaccineSub-family AVariant group 2

Identifiers

PMID24035433
PMCPMC3867019
OpenAlexW2002473804

What OpenQuestion holds

Textmetadata
LicenceTDM
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.