Evidence map›Paper›PMID 19159390›Full record

ArticleCellular microbiology2009

A protein secreted by the respiratory pathogen Chlamydia pneumoniae impairs IL-17 signalling via interaction with human Act1.

Katerina Wolf, Gregory V Plano, Kenneth A Fields

Open access · bronzeAbstract read
In one paragraph

Article in Cellular microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
4.4field-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

27 citing papers in PubMed, 45 citations in OpenAlex.

  1. Journal of medical microbiology · 2025
    Review
  2. TheMicrobiology spectrum · 2024
    Article
  3. Review
  4. Application of aJournal of bacteriology · 2021
    Article
  5. Clear Victory forFrontiers in microbiology · 2019
    Review
  6. Review
  7. Review
  8. Article
  9. Chlamydia cell biology and pathogenesis.Nature reviews. Microbiology · 2016
    Review
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Unity in variety--the pan-genome of the Chlamydiae.Molecular biology and evolution · 2011
    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

3 authors at 2 institutions in 2 countries.

Katerina WolfDepartment of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL 33101, USA.
Gregory V Plano
Kenneth A Fields
University of Miami · USBipar · FR

Funding

University of Miami Developmental Center for AIDS Research (D-CFAR)P30AI073961 · NIAID · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI ALLAN E RODRIGUEZ · 2007 to 2026
$33.8M
Chlamydia pneumoniae-Specific Inclusion Membrane ProteinsR21AI072126 · NIAID · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI FIELDS, KENNETH A · 2007 to 2008
$407k
NIAID NIH HHS AI072126NIAID NIH HHS P30 AI073961NIAID NIH HHS R21 AI072126
6 · The paper itself

Abstract

Chlamydia pneumoniae is a common respiratory pathogen that has been associated with a variety of chronic diseases including asthma and atherosclerosis. Chlamydiae are obligate intracellular parasites that primarily infect epithelial cells where they develop within a membrane-bound vacuole, termed an inclusion. Interactions between the microorganism and eukaryotic cell can be mediated by chlamydial proteins inserted into the inclusion membrane. We describe here a novel C. pneumoniae-specific inclusion membrane protein (Inc) CP0236, which contains domains exposed to the host cytoplasm. We demonstrate that, in a yeast two-hybrid screen, CP0236 interacts with the NFκB activator 1 (Act1) and this interaction was confirmed in HeLa 229 cells where ectopically expressed CP0236 was co-immunoprecipitated with endogenous Act1. Furthermore, we demonstrate that Act1 displays an altered distribution in the cytoplasm of HeLa cells infected with C. pneumoniae where it associates with the chlamydial inclusion membrane. This sequestration of Act1 by chlamydiae inhibited recruitment of the protein to the interleukin-17 (IL-17) receptor upon stimulation of C. pneumoniae-infected cells with IL-17A. Such inhibition of the IL-17 signalling pathway led to protection of Chlamydia-infected cells from NFκB activation in IL-17-stimulated cells. We describe here a unique strategy employed by C. pneumoniae to achieve inhibition of NFκB activation via interaction of CP0236 with mammalian Act1.

Indexed as

Signal TransductionAdaptor Proteins, Signal TransducingBacterial ProteinsChlamydophila pneumoniaeHeLa CellsHumansInterleukin-17Membrane ProteinsModels, BiologicalNF-kappa BTumor Necrosis Factor Receptor-Associated Peptides and ProteinsAdaptor Proteins, Signal TransducingBacterial ProteinsInterleukin-17Membrane ProteinsNF-kappa BTRAF3IP2 protein, humanTumor Necrosis Factor Receptor-Associated Peptides and Proteins

Identifiers

PMID19159390
PMCPMC2927722
OpenAlexW2054557703

What OpenQuestion holds

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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.