Evidence map›Paper›PMID 18191311›Full record

ArticleVaccine2008

The PorB porin from commensal Neisseria lactamica induces Th1 and Th2 immune responses to ovalbumin in mice and is a potential immune adjuvant.

Xiuping Liu, Lee M Wetzler, Paola Massari

Open access · greenAbstract read
In one paragraph

Article in Vaccine, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

28 citing papers in PubMed, 54 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Structural Assessment ofVaccines · 2024
    Article
  6. BothPathogens (Basel, Switzerland) · 2022
    Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Properly folded and functional PorB fromThe Journal of biological chemistry · 2018
    Article
  12. Pathogenesis ofFrontiers in immunology · 2018
    Review
  13. Article
  14. Article
  15. Frontiers in immunology · 2017
    Article
  16. Article
  17. Article
  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

3 authors at 1 institution in 1 country.

Xiuping LiuEvans BioMedical Research Center, Section of Infectious Diseases, Department of Medicine, Boston University School of Medicine, 650 Albany Street, Boston, MA 02118, USA.
Lee M Wetzler
Paola Massari
Boston University · US

Funding

Neisserial Porins and Antigen Presenting CellsR01AI040944 · NIAID · BOSTON MEDICAL CENTER · PI WETZLER, LEE MARK · 1997 to 2019
$9.3M
Neisserial porins and antigen presenting cellsR56AI040944 · NIAID · BOSTON MEDICAL CENTER · PI WETZLER, LEE MARK · 2015 to 2015
$429k
NIAID NIH HHS AI40944-01NIAID NIH HHS R01 AI040944NIAID NIH HHS R56 AI040944
6 · The paper itself

Abstract

Porins from pathogenic Neisseriae are among several bacterial products with immune adjuvant activity. Neisseria meningitidis (Nme) PorB, has been shown to induce immune cells activation in a TLR2-dependent manner and acts as a vaccine immune adjuvant. The PorB porin from Neisseria lactamica (Nlac), a common nasopharyngeal commensal, shares significant structural and functional similarities with Nme PorB. In this work we ask whether the immune adjuvant ability of porins from pathogenic Neisserial strains is a characteristic shared with porins from non-pathogenic Neisserial species or whether it is unique for bacterial products derived from microorganisms capable of inducing inflammation and disease. We evaluated the potential immune adjuvant effect of Nlac PorB in mice using ovalbumin (OVA) as a prototype antigen. Immunization with Nlac PorB/OVA induced high OVA-specific IgG and IgM titers compared to OVA alone, similar to other adjuvants such as Nme PorB and alum. High titers of IgG1 and IgG2b were detected as well as production of IL-4, IL-10, IL-12 and INF-gamma in response to Nlac PorB, consistent with induction of both a Th1-type and a Th2-type immune response. OVA-specific proliferation was also determined in splenocytes from Nlac PorB/OVA-immunized mice. In addition, B cell activation in vitro and cytokine production in response to Nlac PorB was found to be mediated by TLR2, in a similar manner to Nme PorB.

Indexed as

Adjuvants, ImmunologicImmunizationAnimalsAntibodiesAntibody SpecificityB-LymphocytesCells, CulturedImmunization ScheduleImmunoglobulin GInjections, SubcutaneousInterferon-gammaInterleukinsLymphocyte ActivationMiceMice, Inbred C57BLNeisseria lactamicaAdjuvants, ImmunologicAntibodiesImmunoglobulin GInterferon-gammaInterleukinsOvalbuminporin protein, NeisseriaPorins

Identifiers

PMID18191311
PMCPMC2259119
OpenAlexW2064510473

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.