Evidence map›Paper›PMID 17371852›Full record

ArticleInfection and immunity2007

Biological and immunological characteristics of lipooligosaccharide-based conjugate vaccines for serotype C Moraxella catarrhalis.

Shengqing Yu, Xin-Xing Gu

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.2field-weighted citation impact, top 20% 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

15 citing papers in PubMed, 29 citations in OpenAlex.

  1. Review
  2. Genotypic and Phenotypic Characteristics ofPathogens (Basel, Switzerland) · 2022
    Article
  3. Review
  4. Review
  5. Review
  6. Vaccine targets against Moraxella catarrhalis.Expert opinion on therapeutic targets · 2016
    Review
  7. Article
  8. Review
  9. Panel 6: Vaccines.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2013
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Molecular aspects of Moraxella catarrhalis pathogenesis.Microbiology and molecular biology reviews : MMBR · 2009
    Review
  15. 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

2 authors at 1 institution in 1 country.

Shengqing YuVaccine Research Section. National Institute on Deafness and Other Communication Disorders, 5 Research Court, Rockville, MD 20850, USA.
Xin-Xing Gu
National Institute on Deafness and Other Communication Disorders · US

Funding

VACCINE DEVELOPMENT OF NONTYPEABL HAEMOPHILUS INFLUENZAEZ01DC000019 · NIDCD · NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS · PI GU, XIN-XING · 1994 to 2008
$1.5M
Vaccine Development Of Nontypeable Haemophilus influenzae/Moraxella catarrhalisZIADC000019 · NIDCD · NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS · PI GU, XIN-XING · 2009 to 2010
$1.3M
Intramural NIH HHS
6 · The paper itself

Abstract

Moraxella catarrhalis is an important bacterial cause of otitis media in children and respiratory tract infections in the elderly. Lipooligosaccharide (LOS), a major surface antigen of this bacterium, is a potential vaccine component against the organism. There are three major LOS serotypes (serotypes A, B, and C) in clinical isolates of M. catarrhalis. Our previous studies demonstrated that serotype A and B LOS-based conjugates were immunogenic in animals and elicited bactericidal antibodies. In this study, LOS from serotype C strain 26404 was isolated, detoxified, and conjugated to tetanus toxoid (TT) or the cross-reactive mutant (CRM) of diphtheria toxin to form detoxified LOS (dLOS)-TT, dLOS-CRM-1, and dLOS-CRM-2 vaccine candidates. The molar ratios (dLOS/protein) of the resulting conjugates were 47:1, 19:1, and 32:1, respectively, while the weight ratios were 0.94, 0.84 and 1.44, respectively. All conjugates were highly immunogenic in both mouse and rabbit models. Three subcutaneous injections of each conjugate formulated with the Ribi adjuvant elicited >700-fold increases in serum anti-LOS immunoglobulin G levels in mice (5 microg of dLOS) and >2,000-fold increases in rabbits (50 microg of dLOS). The resulting mouse and rabbit antisera showed complement-mediated bactericidal activity against the homologous strain. In addition, a representative rabbit antiserum showed bactericidal activity against 14 of 18 testable strains, and this bactericidal activity could be 100% inhibited by the serotype C or A LOS but only 30% inhibited by the serotype B LOS. These results indicate that the serotype C LOS-based conjugates can be used as vaccine components for further investigation in humans.

Indexed as

AnimalsAntibodies, BacterialBacterial VaccinesLipopolysaccharidesMiceMice, Inbred BALB CMoraxella catarrhalisMoraxellaceae InfectionsVaccines, ConjugateAntibodies, BacterialBacterial Vaccineslipid-linked oligosaccharidesLipopolysaccharidesVaccines, Conjugate

Identifiers

PMID17371852
PMCPMC1932890
OpenAlexW2141835099

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.