Evidence map›Paper›PMID 22879967›Full record

ArticlePloS one2012

Production of a subunit vaccine candidate against porcine post-weaning diarrhea in high-biomass transplastomic tobacco.

Igor Kolotilin, Angelo Kaldis, Bert Devriendt, Jussi Joensuu, Eric Cox, Rima Menassa

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
4.7field-weighted citation impact, top 5% 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

20 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review on Preventive Measures to Reduce Post-Weaning Diarrhoea in Piglets.Animals : an open access journal from MDPI · 2022
    Review
  5. Review
  6. Review
  7. A VFrontiers in plant science · 2021
    Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. The increasing value of plant-made proteins.Current opinion in biotechnology · 2015
    Review
  14. Review
  15. Article
  16. Review
  17. Review
  18. Review
  19. Article
  20. 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

6 authors at 3 institutions in 3 countries.

Igor KolotilinSouthern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, London, Ontario, Canada.
Angelo Kaldis
Bert Devriendt
Jussi Joensuu
Eric Cox
Rima Menassa
Agriculture and Agri-Food Canada · CAGhent University · BEVTT Technical Research Centre of Finland · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Post-weaning diarrhea (PWD) in piglets is a major problem in piggeries worldwide and results in severe economic losses. Infection with Enterotoxigenic Escherichia coli (ETEC) is the key culprit for the PWD disease. F4 fimbriae of ETEC are highly stable proteinaceous polymers, mainly composed of the major structural subunit FaeG, with a capacity to evoke mucosal immune responses, thus demonstrating a potential to act as an oral vaccine against ETEC-induced porcine PWD. In this study we used a transplastomic approach in tobacco to produce a recombinant variant of the FaeG protein, rFaeG(ntd/dsc), engineered for expression as a stable monomer by N-terminal deletion and donor strand-complementation (ntd/dsc). The generated transplastomic tobacco plants accumulated up to 2.0 g rFaeG(ntd/dsc) per 1 kg fresh leaf tissue (more than 1% of dry leaf tissue) and showed normal phenotype indistinguishable from wild type untransformed plants. We determined that chloroplast-produced rFaeG(ntd/dsc) protein retained the key properties of an oral vaccine, i.e. binding to porcine intestinal F4 receptors (F4R), and inhibition of the F4-possessing (F4+) ETEC attachment to F4R. Additionally, the plant biomass matrix was shown to delay degradation of the chloroplast-produced rFaeG(ntd/dsc) in gastrointestinal conditions, demonstrating a potential to function as a shelter-vehicle for vaccine delivery. These results suggest that transplastomic plants expressing the rFaeG(ntd/dsc) protein could be used for production and, possibly, delivery of an oral vaccine against porcine F4+ ETEC infections. Our findings therefore present a feasible approach for developing an oral vaccination strategy against porcine PWD.

Indexed as

BiomassWeaningAdhesins, Escherichia coliAnimalsBacterial AdhesionDiarrheaEnterotoxigenic Escherichia coliFimbriae, BacterialGastrointestinal TractMicrovilliNicotianaPhenotypePlants, Genetically ModifiedPlastidsProtein StabilityRecombinant ProteinsAdhesins, Escherichia coliFaeG protein, E coliRecombinant ProteinsVaccines, Subunit

Identifiers

PMID22879967
PMCPMC3411772
OpenAlexW2166857120

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.