Evidence map›Paper›PMID 28775292›Full record

ArticleScientific reports2017

Mucosal vaccination with pili from Group A Streptococcus expressed on Lactococcus lactis generates protective immune responses.

Jacelyn M S Loh, Natalie Lorenz, Catherine J-Y Tsai, Adrina Hema J Khemlani, Thomas Proft

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

24 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. Review
  3. The group AInfection and immunity · 2025
    Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. PilVax: A Novel Platform for the Development of Mucosal Vaccines.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. Group AInfection and immunity · 2019
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Jacelyn M S LohDepartment of Molecular Medicine & Pathology, School of Medical Sciences, The University of Auckland, Auckland, 1023, New Zealand.ORCID http://orcid.org/0000-0002-9428-1215
Natalie LorenzDepartment of Molecular Medicine & Pathology, School of Medical Sciences, The University of Auckland, Auckland, 1023, New Zealand.
Catherine J-Y TsaiDepartment of Molecular Medicine & Pathology, School of Medical Sciences, The University of Auckland, Auckland, 1023, New Zealand.
Adrina Hema J KhemlaniDepartment of Molecular Medicine & Pathology, School of Medical Sciences, The University of Auckland, Auckland, 1023, New Zealand.
Thomas ProftDepartment of Molecular Medicine & Pathology, School of Medical Sciences, The University of Auckland, Auckland, 1023, New Zealand. t.proft@auckland.ac.nz.ORCID http://orcid.org/0000-0002-9275-5042
University of Auckland · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The human pathogen Group A Streptococcus (GAS) produces pili that are involved in adhesion and colonisation of the host. These surface-exposed pili are immunogenic and therefore represent an attractive target for vaccine development. The pilus is encoded in the genomic region known as the fibronectin-collagen-T-antigen (FCT)-region, of which at least nine different types have been identified. In this study we investigate expressing two of the most common FCT-types (FCT-3 and FCT-4) in the food-grade bacteria Lactococcus lactis for use as a mucosal vaccine. We show that mucosally delivered L. lactis expressing GAS pili generates specific antibody responses in rabbits. Rabbit anti-pilus antibodies were shown to have both a neutralising effect on bacterial adhesion, and immunised rabbit antiserum was able to facilitate immune-mediated killing of bacteria via opsonophagocytosis. Furthermore, intranasal immunisation of mice improved clearance rates of GAS after nasopharyngeal challenge. These results demonstrate the potential for a novel, pilus-based vaccine to protect against GAS infections.

Indexed as

AnimalsAntigens, BacterialFibronectinsFimbriae, BacterialFimbriae ProteinsLactococcus lactisMiceRabbitsStreptococcal InfectionsStreptococcal VaccinesStreptococcus pyogenesVaccinationVaccines, SyntheticAntigens, BacterialFibronectinsFimbriae ProteinsStreptococcal VaccinesVaccines, Synthetic

Identifiers

PMID28775292
PMCPMC5543120
OpenAlexW2741323808

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.