Evidence map›Paper›PMID 9011579›Full record

ArticleThe Journal of clinical investigation1997

Secretion of proinflammatory cytokines by epithelial cells in response to Chlamydia infection suggests a central role for epithelial cells in chlamydial pathogenesis.

S J Rasmussen, L Eckmann, A J Quayle, L Shen, Y X Zhang, D J Anderson, J Fierer, R S Stephens, M F Kagnoff

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 221 papers.

0numbers the graph read from it
0cells of the map it votes in
221citing papers in PubMed
17.0field-weighted citation impact, top 1% 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

221 citing papers in PubMed, 510 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Insights into intestinal barrier disruption during long-term gutFrontiers in cellular and infection microbiology · 2025
    Article
  9. Infections withFrontiers in aging neuroscience · 2025
    Review
  10. mBio · 2024
    Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. The role of infected epithelial cells inFrontiers in cellular and infection microbiology · 2023
    Review
  19. Frontiers in cellular and infection microbiology · 2023
    Article
  20. Article

161 more citing papers are in PubMed but not listed here.

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

9 authors at 5 institutions in 2 countries.

S J RasmussenFrancis I. Proctor Foundation, University of California, San Francisco 94143, USA.
L Eckmann
A J Quayle
L Shen
Y X Zhang
D J Anderson
J Fierer
R S Stephens
M F Kagnoff
University of California San Diego · USBoston University · USBrigham and Women's Hospital · USSan Francisco Foundation · USSan Francisco VA Medical Center · US

Funding

TL MOLECULES AND GAMMA-DELTA T CELLSP01DK035108 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI VARICI, NISSI · 1986 to 2013
$19.2M
MICROBIOLOGY OF CHLAMYDIA TRACHOMATIS ATTACHMENTR01AI032943 · NIAID · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI STEPHENS, RICHARD S · 1992 to 2005
$1.5M
SEROLOGICAL EVALUATION OF C TRACHOMATIS EYE INFECTIONSR01EY007757 · NEI · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI STEPHENS, RICHARD S · 1988 to 1998
–
NEI NIH HHS EY-07757NIAID NIH HHS AI-32943NIDDK NIH HHS DK-35108
6 · The paper itself

Abstract

Chlamydia species infect epithelial cells at mucosal surfaces, and are major causes of sexually transmitted diseases. Infection is characterized by inflammation which is exacerbated upon reinfection, ultimately leading to tissue damage and scarring. Although central for the development of disease manifestations, little is known about the mechanisms that initiate and sustain the inflammatory response to Chlamydia. Infection of cervical and colonic epithelial cells with Chlamydia trachomatis and Chlamydia psittaci is shown in the present studies to upregulate mRNA expression and secretion of the proinflammatory cytokines IL-8, GRO alpha, GM-CSF, and IL-6. In contrast to the rapid, but transient, cytokine induction following infection with other invasive bacteria, the epithelial cytokine response to Chlamydia was delayed until 20-24 h after infection, persisted throughout the chlamydial growth cycle (2-4 d), and required bacterial protein synthesis. Moreover, epithelial cell lines and primary endocervical epithelial cells released IL-1alpha after Chlamydia infection, and increased secretion of the proinflammatory cytokines could be inhibited by anti-IL-1alpha. This suggests that IL-1alpha, released following lysis of infected epithelial cells, may amplify the inflammatory response by stimulating additional cytokine production by noninfected neighboring cells. These findings suggest a novel pathophysiologic concept wherein the acute host response to Chlamydia at mucosal surfaces is primarily initiated and sustained by epithelial cells, the first and major targets of chlamydial infection.

Indexed as

Chemokines, CXCIntercellular Signaling Peptides and ProteinsActinsBacterial ProteinsCells, CulturedChemokine CXCL1Chemotactic FactorsChlamydia InfectionsChlamydia trachomatisChlamydophila psittaciEpithelial CellsEpitheliumFemaleGranulocyte-Macrophage Colony-Stimulating FactorGrowth SubstancesHeLa CellsActinsBacterial ProteinsChemokine CXCL1Chemokines, CXCChemotactic FactorsCXCL1 protein, humanGranulocyte-Macrophage Colony-Stimulating FactorGrowth SubstancesIntercellular Signaling Peptides and ProteinsInterleukin-1Interleukin-6Interleukin-8Polysaccharides, BacterialRNA, MessengerTransforming Growth Factor beta

Identifiers

PMID9011579
PMCPMC507770
OpenAlexW1967313249

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.