Evidence map›Paper›PMID 26878971›Full record

ArticleVeterinary microbiology2017

Murine immunization with CS21 pili or LngA major subunit of enterotoxigenic Escherichia coli (ETEC) elicits systemic and mucosal immune responses and inhibits ETEC gut colonization.

Chengxian Zhang, Junaid Iqbal, Oscar G Gómez-Duarte

Abstract read
In one paragraph

Article in Veterinary microbiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
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

7 citing papers in PubMed.

  1. Article
  2. Article
  3. RecombinantPathogens (Basel, Switzerland) · 2023
    Article
  4. The Diversity ofMicroorganisms · 2023
    Review
  5. Article
  6. Frontiers in medicine · 2022
    Article
  7. 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

3 authors.

Chengxian ZhangDivision of Infectious Diseases, Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN, USA.
Junaid IqbalDivision of Infectious Diseases, Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN, USA.
Oscar G Gómez-DuarteDivision of Infectious Diseases, Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN, USA. Electronic address: oscar.gomez@Vanderbilt.Edu.

Funding

Function of Longus Type IV pili in enterotoxigenic E coliK08AI079410 · NIAID · UNIVERSITY OF IOWA · PI GOMEZ, OSCAR G · 2008 to 2010
$382k
NIAID NIH HHS K08 AI079410
6 · The paper itself

Abstract

CS21 pili of enterotoxigenic Escherichia coli (ETEC) is one of the most prevalent ETEC colonization factors. CS21 major subunit, LngA, mediates ETEC adherence to intestinal cells, and contributes to ETEC pathogenesis in a neonatal mouse infection model. The objectives of this work were to evaluate LngA major subunit purified protein and CS21 purified pili on immunogenicity and protection against ETEC colonization of mice intestine. Recombinant LngA purified protein or purified CS21 pili from E9034A ETEC strain were evaluated for immunogenicity after immunization of C57BL/6 mice. Specific anti-LngA antibodies were detected from mice serum, feces, and intestine fluid samples by ELISA assays. Protection against gut colonization was evaluated on immunized mice orally challenged with wild type E9034A ETEC strain and by subsequent quantification of bacterial colony forming units (CFU) recovered from feces. Recombinant LngA protein and CS21 pili induced specific humoral and mucosal anti-LngA antibodies in the mouse model. CS21 combined with CT delivered intranasally as well as LngA combined with incomplete Freund adjuvant delivered intraperitoneally inhibited ETEC gut colonization in a mouse model. In conclusion, both LngA purified protein and CS21 pili from ETEC are highly immunogenic and may inhibit ETEC intestinal shedding. Our data on immunogenicity and immunoprotection indicates that CS21 is a suitable vaccine candidate for a future multivalent vaccine against ETEC diarrhea.

Indexed as

AnimalsBacterial AdhesionBacterial ToxinsCarrier StateEnterotoxigenic Escherichia coliEscherichia coli InfectionsEscherichia coli ProteinsEscherichia coli VaccinesFecesGastrointestinal TractGenes, BacterialImmunity, MucosalImmunizationIntestinesMiceVaccinationBacterial ToxinsEscherichia coli ProteinsEscherichia coli VaccinesLngA protein, E coliColonizationCS21Enterotoxigenic Escherichia coli (ETEC)LngAMucosal immunityType IV piliVaccine

Identifiers

PMID26878971
PMCPMC4976044

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Registered trials

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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.