Evidence map›Paper›PMID 21998584›Full record

ArticlePLoS pathogens2011

Chlamydia trachomatis co-opts the FGF2 signaling pathway to enhance infection.

Jung Hwa Kim, Shaobo Jiang, Cherilyn A Elwell, Joanne N Engel

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

41 citing papers in PubMed, 64 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Chlamydia trachomatis invasion: a duet of effectors.Biochemical Society transactions · 2025
    Review
  5. Article
  6. Review
  7. Review
  8. Establishing the intracellular niche of obligate intracellular vacuolar pathogens.Frontiers in cellular and infection microbiology · 2023
    Review
  9. Article
  10. Review
  11. The Chlamydia trachomatis Tarp effector targets the Hippo pathway.Biochemical and biophysical research communications · 2021
    Article
  12. Article
  13. Hijacking and Use of Host Kinases by Chlamydiae.Pathogens (Basel, Switzerland) · 2020
    Review
  14. Review
  15. Article
  16. Pathogenic Puppetry: Manipulation of the Host Actin Cytoskeleton byInternational journal of molecular sciences · 2019
    Review
  17. Article
  18. Article
  19. Article
  20. Chlamydial Infection From Outside to Inside.Frontiers in microbiology · 2019
    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

4 authors at 1 institution in 1 country.

Jung Hwa KimDepartment of Medicine, University of California San Francisco, San Francisco, California, United States of America.
Shaobo Jiang
Cherilyn A Elwell
Joanne N Engel
University of California, San Francisco · US

Funding

Novel approaches to identify host genes required for Chlamydia pathogenesisR01AI073770 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI ENGEL, JOANNE N. · 2007 to 2016
$3.8M
NIAID NIH HHS R01 AI073770
6 · The paper itself

Abstract

The molecular details of Chlamydia trachomatis binding, entry, and spread are incompletely understood, but heparan sulfate proteoglycans (HSPGs) play a role in the initial binding steps. As cell surface HSPGs facilitate the interactions of many growth factors with their receptors, we investigated the role of HSPG-dependent growth factors in C. trachomatis infection. Here, we report a novel finding that Fibroblast Growth Factor 2 (FGF2) is necessary and sufficient to enhance C. trachomatis binding to host cells in an HSPG-dependent manner. FGF2 binds directly to elementary bodies (EBs) where it may function as a bridging molecule to facilitate interactions of EBs with the FGF receptor (FGFR) on the cell surface. Upon EB binding, FGFR is activated locally and contributes to bacterial uptake into non-phagocytic cells. We further show that C. trachomatis infection stimulates fgf2 transcription and enhances production and release of FGF2 through a pathway that requires bacterial protein synthesis and activation of the Erk1/2 signaling pathway but that is independent of FGFR activation. Intracellular replication of the bacteria results in host proteosome-mediated degradation of the high molecular weight (HMW) isoforms of FGF2 and increased amounts of the low molecular weight (LMW) isoforms, which are released upon host cell death. Finally, we demonstrate the in vivo relevance of these findings by showing that conditioned medium from C. trachomatis infected cells is enriched for LMW FGF2, accounting for its ability to enhance C. trachomatis infectivity in additional rounds of infection. Together, these results demonstrate that C. trachomatis utilizes multiple mechanisms to co-opt the host cell FGF2 pathway to enhance bacterial infection and spread.

Indexed as

Signal TransductionCaspase 1Chlamydia InfectionsChlamydia trachomatisFibroblast Growth Factor 2HeLa CellsHeparan Sulfate ProteoglycansHumansMitogen-Activated Protein Kinase 3Protein BindingReal-Time Polymerase Chain ReactionReceptors, Platelet-Derived Growth FactorRNA, Small InterferingTranscription, GeneticUp-RegulationVacuolesCaspase 1Fibroblast Growth Factor 2Heparan Sulfate ProteoglycansMitogen-Activated Protein Kinase 3Receptors, Platelet-Derived Growth FactorRNA, Small Interfering

Identifiers

PMID21998584
PMCPMC3188521
OpenAlexW2041277865

What Socratic 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 Socratic graph.