Evidence map›Paper›PMID 21899371›Full record

ArticleBioconjugate chemistry2011

Simple, direct conjugation of bacterial O-SP-core antigens to proteins: development of cholera conjugate vaccines.

Peng Xu, Mohammad Murshid Alam, Anuj Kalsy, Richelle C Charles, Stephen B Calderwood, Firdausi Qadri, Edward T Ryan, Pavol Kováč

Abstract read
In one paragraph

Article in Bioconjugate chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

38 citing papers in PubMed, 57 citations in OpenAlex.

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  8. Virus-like Particle Display ofACS infectious diseases · 2022
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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

8 authors at 5 institutions in 2 countries.

Peng XuNIDDK, LBC, National Institutes of Health, Bethesda, Maryland 20892-0815, United States.
Mohammad Murshid Alam
Anuj Kalsy
Richelle C Charles
Stephen B Calderwood
Firdausi Qadri
Edward T Ryan
Pavol Kováč
Massachusetts General Hospital · USInternational Centre for Diarrhoeal Disease Research · BDLemuel Shattuck Hospital · USNational Institute of Diabetes and Digestive and Kidney Diseases · USNational Institutes of Health · US

Funding

Reactions And Immunochemistry Of CarbohydratesZIADK059701 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI KOVAC, PAVOL · 2009 to 2019
$9.5M
Protecutive immunity to human cholera in BangladeshU01AI058935 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI CALDERWOOD, STEPHEN B., RYAN, EDWARD T. · 2003 to 2014
$7.8M
High throughput NAPPA-proteoimmunomics and Vibrio cholerae vaccine developmentU01AI077883 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI RYAN, EDWARD T. · 2008 to 2012
$5.6M
Training program in vaccine development and public healthD43TW005572 · FIC · MASSACHUSETTS GENERAL HOSPITAL · PI QADRI, FIRDAUSI, RYAN, EDWARD T. · 2000 to 2025
$5.4M
O-Specific Polysaccharide Responses and CholeraR37AI106878 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI Edward T. Ryan · 2020 to 2026
$5.1M
O-Specific Polysaccharide Responses and CholeraR01AI106878 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI RYAN, EDWARD T. · 2014 to 2018
$3.7M
High-throughput proteomic study of protective immunity in human cholera infectionK08AI089721 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI CHARLES, RICHELLE C · 2010 to 2014
$684k
FIC NIH HHS D43 TW005572FIC NIH HHS TW05572Intramural NIH HHS ZIA DK059701NIAID NIH HHS AI058935NIAID NIH HHS AI077883NIAID NIH HHS AI089721NIAID NIH HHS K08 AI089721NIAID NIH HHS R37 AI106878NIAID NIH HHS U01 AI058935NIAID NIH HHS U01 AI077883
6 · The paper itself

Abstract

Bacterial O-SP-core antigens can be conjugated to proteins in the same, simple way as synthetic, linker-equipped carbohydrates by applying squaric acid chemistry. Introduction of spacers (linkers) to either O-SP-core antigens or protein carriers, which is involved in commonly applied protocols, is not required. The newly developed method described here consists of preparation of a squaric acid monoester derivative of O-SP-core antigen, utilizing the amino group inherent in the core, and reaction of the monoester with the carrier protein. The intermediate monoester can be easily purified; its conjugation can be monitored by SELDI-TOF mass spectrometry and, thus, readily controlled, since the conjugation can be terminated when the desired carbohydrate-protein ratio is reached. Here, we describe production of conjugates containing the O-SP-core antigen of Vibrio cholerae O1, the major cause of cholera, a severe dehydrating diarrheal disease of humans. The resultant products are recognized by convalescent phase sera from patients recovering from cholera in Bangladesh, and anti-O-SP-core-protein responses correlate with plasma antilipopolysaccharide and vibriocidal responses, which are the primary markers of protection from cholera. The results suggest that such conjugates have potential as vaccines for cholera and other bacterial diseases.

Indexed as

CholeraCholera VaccinesHumansO AntigensVaccines, ConjugateVibrio cholerae O1Cholera VaccinesO AntigensVaccines, Conjugate

Identifiers

PMID21899371
PMCPMC3197769
OpenAlexW2053452202

What OpenQuestion holds

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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.