Evidence map›Paper›PMID 30314911›Full record

ArticleVaccine2018

PLGA-encapsulation of the Pseudomonas aeruginosa PopB vaccine antigen improves Th17 responses and confers protection against experimental acute pneumonia.

Matthew M Schaefers, Biyan Duan, Boaz Mizrahi, Roger Lu, Gally Reznor, Daniel S Kohane, Gregory P Priebe

Abstract read
In one paragraph

Article in Vaccine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing 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

25 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
  4. International journal of molecular sciences · 2025
    Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Immunopotentiating properties of chimeric OprF-OprI-PopB protein againstIranian journal of basic medical sciences · 2022
    Article
  13. Article
  14. Vaccination to PreventFrontiers in microbiology · 2022
    Article
  15. Gut Microbiota Protected AgainstFrontiers in cellular and infection microbiology · 2022
    Article
  16. AVaccines · 2021
    Article
  17. Metallacarborane Derivatives Effective againstInternational journal of molecular sciences · 2021
    Article
  18. Review
  19. Article
  20. UnderstandingCells · 2020
    Review
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

7 authors.

Matthew M SchaefersDivision of Critical Care Medicine, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115 USA; Division of Infectious Diseases, Department of Medicine, Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115, USA. Electronic address: matthew.schaefers@childrens.harvard.edu.
Biyan DuanDivision of Infectious Diseases, Department of Medicine, Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115, USA.
Boaz MizrahiLaboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA.
Roger LuDivision of Critical Care Medicine, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115 USA; Division of Infectious Diseases, Department of Medicine, Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115, USA.
Gally ReznorLaboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA.
Daniel S KohaneDivision of Critical Care Medicine, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115 USA; Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA.
Gregory P PriebeDivision of Critical Care Medicine, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115 USA; Division of Infectious Diseases, Department of Medicine, Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115, USA.

Funding

Mechanisms of adaptive immunity to P. aeruginosa in the lungR01HL092515 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI PRIEBE, GREGORY P · 2009 to 2013
$2.4M
NHLBI NIH HHS R01 HL092515
6 · The paper itself

Abstract

The Pseudomonas aeruginosa type III secretion system protein PopB and its chaperon protein PcrH, when co-administered with the adjuvant curdlan, elicit Th17 responses after intranasal immunization of mice. These PopB/PcrH-curdlan vaccines protect mice against acute lethal pneumonia in an IL-17-dependent fashion involving CD4 helper T cells secreting IL-17 (Th17 cells). In this study, we tested whether encapsulation of PopB/PcrH in poly-lactic-co-glycolic acid (PLGA) nanoparticles could elicit Th17 responses to PopB. Recombinant PopB/PcrH or PcrH alone was encapsulated into PLGA nanoparticles. Mice (FVB/N) were intranasally immunized with the PLGA-PopB/PcrH nanoparticles, PLGA-PcrH nanoparticles, PLGA alone, or PopB/PcrH alone. The protective efficacy was assessed in an acute lung infection model with a lethal dose of an ExoU-producing version of P. aeruginosa strain PAO1. Th17 responses were assayed by intracellular flow cytometry and by ELISA for IL-17 in supernatants of splenocytes co-cultured with purified PopB/PcrH. PLGA-PopB/PcrH-immunized mice showed 3-4-fold higher Th17 responses both in the lung and in the spleen compared to mice immunized with empty PLGA or PopB/PcrH alone. After challenge with P. aeruginosa, PLGA-PopB/PcrH-immunized mice showed significantly lower bacterial counts in the lungs and improved survival. In conclusion, encapsulation of PopB/PcrH in PLGA nanoparticles can elicit Th17 responses to intranasal vaccination and protect mice against acute lethal P. aeruginosa pneumonia.

Indexed as

Administration, IntranasalAnimalsAntigens, BacterialBacterial LoadBacterial ProteinsDisease Models, AnimalDrug CarriersEnzyme-Linked Immunosorbent AssayFemaleFlow CytometryInterleukin-17LungPneumonia, BacterialPolylactic Acid-Polyglycolic Acid CopolymerPseudomonas InfectionsPseudomonas VaccinesAntigens, BacterialBacterial ProteinsDrug CarriersIl17a protein, mouseInterleukin-17Polylactic Acid-Polyglycolic Acid CopolymerPopB protein, Pseudomonas aeruginosaPseudomonas VaccinesVaccines, SubunitVaccines, SyntheticIL-17NanoparticlePLGAPseudomonas aeruginosaTh17Vaccine

Identifiers

PMID30314911
PMCPMC6279603

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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.