Evidence map›Paper›PMID 21296978›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2011

Immunization with live and dead Chlamydia muridarum induces different levels of protective immunity in a murine genital tract model: correlation with MHC class II peptide presentation and multifunctional Th1 cells.

Hong Yu, Karuna P Karunakaran, Isabelle Kelly, Caixia Shen, Xiaozhou Jiang, Leonard J Foster, Robert C Brunham

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
5.5field-weighted citation impact, top 4% 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

49 citing papers in PubMed, 77 citations in OpenAlex.

  1. Trial
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  8. Review
  9. Article
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  12. Article
  13. T cell responses to Chlamydia.Pathogens and disease · 2021
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Journal of pathogens · 2019
    Review
  19. Article
  20. 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 at 2 institutions in 1 country.

Hong YuBritish Columbia Centre for Disease Control, University of British Columbia, Vancouver, British Columbia V5Z 4R4, Canada.
Karuna P Karunakaran
Isabelle Kelly
Caixia Shen
Xiaozhou Jiang
Leonard J Foster
Robert C Brunham
University of British Columbia · CABC Centre for Disease Control · CA

Funding

Development of a Chlamydia T Cell Vaccine Based on Dendritic Cell ImmunoprotemicsR01AI076483 · NIAID · UNIVERSITY OF BRITISH COLUMBIA · PI BRUNHAM, ROBERT CONRAD, FOSTER, LEONARD J · 2008 to 2012
$1.1M
NIAID NIH HHS R01 AI076483NIAID NIH HHS R01AI076483
6 · The paper itself

Abstract

Mice that were intranasally vaccinated with live or dead Chlamydia muridarum with or without CpG-containing oligodeoxynucleotide 1862 elicited widely disparate levels of protective immunity to genital tract challenge. We found that the frequency of multifunctional T cells coexpressing IFN-γ and TNF-α with or without IL-2 induced by live C. muridarum most accurately correlated with the pattern of protection against C. muridarum genital tract infection, suggesting that IFN-γ(+)-producing CD4(+) T cells that highly coexpress TNF-α may be the optimal effector cells for protective immunity. We also used an immunoproteomic approach to analyze MHC class II-bound peptides eluted from dendritic cells (DCs) that were pulsed with live or dead C. muridarum elementary bodies (EBs). We found that DCs pulsed with live EBs presented 45 MHC class II C. muridarum peptides mapping to 13 proteins. In contrast, DCs pulsed with dead EBs presented only six MHC class II C. muridarum peptides mapping to three proteins. Only two epitopes were shared in common between the live and dead EB-pulsed groups. This study provides insights into the role of Ag presentation and cytokine secretion patterns of CD4(+) T effector cells that correlate with protective immunity elicited by live and dead C. muridarum. These insights should prove useful for improving vaccine design for Chlamydia trachomatis.

Indexed as

AnimalsAntigen PresentationBacterial VaccinesChlamydia InfectionsChlamydia muridarumDisease Models, AnimalFemaleHeLa CellsHistocompatibility Antigens Class IIHumansImmunity, CellularInclusion BodiesMiceMice, Inbred C57BLPeptidesTh1 CellsBacterial VaccinesHistocompatibility Antigens Class IIPeptides

Identifiers

PMID21296978
PMCPMC3072838
OpenAlexW1873165610

What OpenQuestion holds

Textmetadata
LicenceTDM
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.