Evidence map›Paper›PMID 9453596›Full record

ArticleInfection and immunity1998

Mucosal immunogenicity of a holotoxin-like molecule containing the serine-rich Entamoeba histolytica protein (SREHP) fused to the A2 domain of cholera toxin.

F Sultan, L L Jin, M G Jobling, R K Holmes, S L Stanley

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.3field-weighted citation impact, top 18% 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

19 citing papers in PubMed, 39 citations in OpenAlex.

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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

5 authors at 2 institutions in 1 country.

F SultanDepartment of Medicine, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
L L Jin
M G Jobling
R K Holmes
S L Stanley
University of Colorado Health · USWashington University in St. Louis · US

Funding

GENETIC ANALYSIS OF CHOLERA TOXIN STRUCTURE AND FUNCTIONR01AI031940 · NIAID · UNIVERSITY OF COLORADO DENVER · PI HOLMES, RANDALL K · 1992 to 2011
$5.9M
MOLECULAR DISSECTION OF E. HISTOLYTICA PATHOGENESISR01AI030084 · NIAID · WASHINGTON UNIVERSITY · PI STENSON, WILLIAM F. · 1992 to 2010
$3.3M
PROTECTIVE IMMUNITY TO ENTAMOEBA HISTOLYTICA INFECTIONK04AI001231 · NIAID · WASHINGTON UNIVERSITY · PI STANLEY, SAMUEL L. · 1994 to 1998
–
NIAID NIH HHS AI01231NIAID NIH HHS AI30084NIAID NIH HHS AI31940NIAID NIH HHS R01 AI030084NIAID NIH HHS R01 AI031940
6 · The paper itself

Abstract

One strategy for the induction of mucosal immune responses by oral immunization is to administer the antigen in conjunction with cholera toxin. Cholera toxin consists of one A polypeptide (CTA) which is noncovalently linked to five B subunits (CTB) via the A2 portion of the A subunit (CTA2). Coupling of antigens to the nontoxic B subunit of cholera toxin may improve the immunogenicity of antigens by targeting them to GM1 ganglioside on M cells and intestinal epithelial cells. Here, we describe the construction of a translational fusion protein containing the serine-rich Entamoeba histolytica protein (SREHP), a protective amebic antigen, fused to a maltose binding protein (MBP) and to CTA2. When coexpressed in Escherichia coli with the CTB gene, these proteins assembled into a holotoxin-like chimera containing MBP-SREHP-CTA2 and CTB. This holotoxin-like chimera (SREHP-H) inhibited the binding of cholera toxin to GM1 ganglioside. Oral vaccination of mice with SREHP-H induced mucosal immunoglobulin A (IgA) and serum IgG antiamebic antibodies and low levels of mucosal anti-CTB antibodies. Our studies confirm that the genetic coupling of antigens to CTA2 and their coexpression in E. coli can produce holotoxin-like molecules that are mucosally immunogenic without the requirement for supplemental cholera toxin, and they establish the SREHP-H protein as a candidate for evaluation as a vaccine to prevent amebiasis.

Indexed as

AnimalsAntibodies, ProtozoanCholera ToxinEntamoeba histolyticaFemaleImmunity, MucosalImmunoglobulin AImmunoglobulin GMiceMice, Inbred BALB CProtozoan ProteinsRecombinant Fusion ProteinsAntibodies, ProtozoanCholera ToxinImmunoglobulin AImmunoglobulin GProtozoan ProteinsRecombinant Fusion Proteins

Identifiers

PMID9453596
PMCPMC107928
OpenAlexW2132528654

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.