Evidence map›Paper›PMID 19490960›Full record

ArticleVaccine2009

Group B streptococcal conjugate vaccines elicit functional antibodies independent of strain O-acetylation.

Pia S Pannaraj, Morven S Edwards, Kristen T Ewing, Amanda L Lewis, Marcia A Rench, Carol J Baker

Open access · greenAbstract read
In one paragraph

Article in Vaccine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.7field-weighted citation impact, top 24% 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

12 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Progress toward a group B streptococcal vaccine.Human vaccines & immunotherapeutics · 2018
    Article
  10. Article
  11. Structure of a protective epitope of group BProceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  12. 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

6 authors at 3 institutions in 1 country.

Pia S PannarajSection of Infectious Diseases, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, Houston, TX, United States. ppannaraj@chla.usc.edu
Morven S Edwards
Kristen T Ewing
Amanda L Lewis
Marcia A Rench
Carol J Baker
Baylor College of Medicine · USTexas Children's Hospital · USUniversity of California, San Diego · US

Funding

PREVENTION OF GROUP B STREPTOCOCCAL /GBS/ DISEASE-266025495-266025495N01AI025495 · NIAID · BRIGHAM AND WOMEN'S HOSPITAL · PI KASPER, DENNIS L. · 2002 to 2006
–
NIAID NIH HHS N01 AI025495
6 · The paper itself

Abstract

Recently, it was discovered that sialic acid residues on group B streptococcal (GBS) capsular polysaccharides (CPS) are O-acetylated. Since GBS vaccine development has focused on de-O-acetylated CPS, it became germane to investigate the influence of de-O-acetylated GBS vaccine formulations on functional activity of sera against strains that bear the O-acetyl modification. Post-immunization sera from healthy adult recipients of de-O-acetylated GBS CPS-tetanus toxoid conjugate vaccines were evaluated in opsonophagocytosis assays using 20 GBS clinical isolates representing type Ia, Ib, II, III, or V CPS that varied in amount of O-acetylation from 2% to 40%. Ninety percent or greater opsonophagocytosis and killing of all strains were achieved, using CPS type-specific post-immunization sera. These data indicate that de-O-acetylated CPS-conjugate vaccines contain immunogenic epitopes that offer protection against GBS, independent of O-acetyl CPS modifications. Thus, presence of O-acetyl groups on the GBS CPS is not essential for functional antibodies to be elicited by GBS glycoconjugate vaccines.

Indexed as

AcetylationAdultAntibodies, BacterialBacterial CapsulesHumansN-Acetylneuraminic AcidPhagocytosisStreptococcal InfectionsStreptococcal VaccinesVaccines, ConjugateVaccines, SyntheticAntibodies, BacterialN-Acetylneuraminic AcidStreptococcal VaccinesVaccines, ConjugateVaccines, Synthetic

Identifiers

PMID19490960
PMCPMC2778198
OpenAlexW1999974180

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.