Evidence map›Paper›PMID 20542498›Full record

ArticleCarbohydrate research2010

Immunochemical studies of Shigella flexneri 2a and 6, and Shigella dysenteriae type 1 O-specific polysaccharide-core fragments and their protein conjugates as vaccine candidates.

Joanna Kubler-Kielb, Evgeny Vinogradov, Christopher Mocca, Vince Pozsgay, Bruce Coxon, John B Robbins, Rachel Schneerson

Open access · greenAbstract read
In one paragraph

Article in Carbohydrate research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.7field-weighted citation impact, top 12% 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

18 citing papers in PubMed, 35 citations in OpenAlex.

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  6. Effect of O-Antigen Chain Length Regulation on the Immunogenicity ofInternational journal of molecular sciences · 2021
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  12. Classical and novel strategies to develop aHuman vaccines & immunotherapeutics · 2019
    Review
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  18. Review
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

7 authors at 3 institutions in 2 countries.

Joanna Kubler-KielbThe Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD 20892, USA. kielbj@mail.nih.gov
Evgeny Vinogradov
Christopher Mocca
Vince Pozsgay
Bruce Coxon
John B Robbins
Rachel Schneerson
National Institutes of Health · USEunice Kennedy Shriver National Institute of Child Health and Human Development · USInstitute for Biological Sciences · CA

Funding

ShigellaeZIAHD008848 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI SCHNEERSON, RACHEL · 2009 to 2012
$2.3M
Synthetic Vaccine Against Human Pathogenic BacteriaZIAHD001313 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI POZSGAY, VINCE · 2009 to 2012
$2.2M
Bordetellae, Brucellae and Haemophilus ducreyiZIAHD008843 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI SCHNEERSON, RACHEL · 2009 to 2012
$1.1M
NMR Verification of Structures of Bacterial Saccharide Precursors for VaccinesZIAHD008789 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI SCHNEERSON, RACHEL · 2009 to 2012
$100k
Intramural NIH HHS Z99 HD999999
6 · The paper itself

Abstract

There is no licensed vaccine for the prevention of shigellosis. Our approach to the development of a Shigella vaccines is based on inducing serum IgG antibodies to the O-specific polysaccharide (O-SP) domain of their lipopolysaccharides (LPS). We have shown that low molecular mass O-SP-core (O-SPC) fragments isolated from Shigella sonnei LPS conjugated to proteins induced significantly higher antibody levels in mice than the full length O-SP conjugates. This finding is now extended to the O-SPC of Shigella flexneri 2a and 6, and Shigella dysenteriae type 1. The structures of O-SPC, containing core plus 1-4 O-SP repeat units (RUs), were analyzed by NMR and mass spectroscopy. The first RUs attached to the cores of S. flexneri 2a and 6 LPS were different from the following RUs in their O-acetylation and/or glucosylation. Conjugates of core plus more than 1 RU were necessary to induce LPS antibodies in mice. The resulting antibody levels were comparable to those induced by the full length O-SP conjugates. In S. dysenteriae type 1, the first RU was identical to the following RUs, with the exception that the GlcNAc was bound to the core in the beta-configuration, while in all other RUs the GlcNAc was present in the alpha-configuration. In spite of this difference, conjugates of S. dysenteriae type 1 core with 1, 2, or 3 RUs induced LPS antibodies in mice with levels statistically higher than those of the full size O-SP conjugates. O-SPC conjugates are easy to prepare, characterize, and standardize, and their clinical evaluation is planned.

Indexed as

AnimalsBacterial VaccinesCarbohydrate SequenceCattleGlycoproteinsImmunochemistryMiceMolecular Sequence DataO AntigensShigella dysenteriaeShigella flexneriBacterial VaccinesGlycoproteinsO Antigens

Identifiers

PMID20542498
PMCPMC2902686
OpenAlexW2043190672

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.