Evidence map›Paper›PMID 10021466›Full record

ArticleThe Journal of clinical investigation1999

Chlamydial and human heat shock protein 60s activate human vascular endothelium, smooth muscle cells, and macrophages.

A Kol, T Bourcier, A H Lichtman, P Libby

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 120 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
120citing papers in PubMed, 1 pooled it
26.7field-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

120 citing papers in PubMed, 1 synthesis or guideline pooled it, 513 citations in OpenAlex.

  1. The Correlation between Chlamydia Trachomatis and Female Infertility: A Systematic Review.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2022
    Pooled it
  2. Trial
  3. The Role ofBiomedicines · 2026
    Review
  4. Pathogenic mechanisms and vaccine development forFrontiers in microbiology · 2025
    Review
  5. Mizoribine Promotes Molecular Chaperone HSP60/HSP10 Complex Formation.International journal of molecular sciences · 2024
    Article
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  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Alterations of Vaginal Microbiota in Women With Infertility andFrontiers in cellular and infection microbiology · 2021
    Article
  14. Article
  15. Immunological Aspects of Age-Related Macular Degeneration.Advances in experimental medicine and biology · 2021
    Article
  16. Review
  17. Hijacking and Use of Host Kinases by Chlamydiae.Pathogens (Basel, Switzerland) · 2020
    Review
  18. Blocking Extracellular Chaperones to Improve Cardiac Regeneration.Frontiers in bioengineering and biotechnology · 2020
    Article
  19. Article
  20. Article

60 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

4 authors at 1 institution in 1 country.

A KolCardiovascular Division, Vascular Medicine and Atherosclerosis Unit, Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA.
T Bourcier
A H Lichtman
P Libby
Brigham and Women's Hospital · US

Funding

Tissue AnalysesP01HL048743 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI MICHEL, THOMAS · 1992 to 2014
$26.3M
NUCLEAR FACTOR KAPPA BETA AND THE INITIATION OF THE ATHEROSCLEROTIC LESIONP50HL056985 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI GANZ, PETER · 1997 to 2006
$14.1M
NHLBI NIH HHS HL-48743NHLBI NIH HHS HL-56985NHLBI NIH HHS P01 HL048743NHLBI NIH HHS P50 HL056985
6 · The paper itself

Abstract

Both chlamydial and human heat shock protein 60s (HSP 60), which colocalize in human atheroma, may contribute to inflammation during atherogenesis. We tested the hypothesis that chlamydial or human HSP 60 activates human endothelial cells (ECs), smooth muscle cells (SMCs), and monocyte-derived macrophages. We examined the expression of adhesion molecules such as endothelial-leukocyte adhesion molecule-1 (E-selectin), intercellular adhesion molecule-1 (ICAM-1), and vascular cell adhesion molecule-1 (VCAM-1), and the production of the proinflammatory cytokine interleukin-6 (IL-6). We also tested whether either HSP 60 induces nuclear factor-kappaB (NF-kappaB), which contributes to the gene expression of these molecules. Either chlamydial or human HSP 60 induced E-selectin, ICAM-1, and VCAM-1 expression on ECs similar to levels induced by Escherichia coli lipopolysaccharide (LPS). Each HSP 60 also significantly induced IL-6 production by ECs, SMCs, and macrophages to an extent similar to that induced by E. coli LPS, as assessed by enzyme-linked immunosorbent assay (ELISA). In ECs, either HSP 60 triggered activation of NF-kappaB complexes containing p65 and p50 Rel proteins. Heat treatment abolished all these effects, but did not alter the ability of E. coli LPS to induce these functions. Chlamydial and human HSP 60s therefore activate human vascular cell functions relevant to atherogenesis and lesional complications. These findings help to elucidate the mechanisms by which a chronic asymptomatic chlamydial infection might contribute to the pathophysiology of atheroma.

Indexed as

Cells, CulturedChaperonin 60Chlamydia trachomatisEndothelium, VascularE-SelectinHumansIntercellular Adhesion Molecule-1Interleukin-6MacrophagesMuscle, Smooth, VascularNF-kappa BVascular Cell Adhesion Molecule-1Chaperonin 60E-SelectinIntercellular Adhesion Molecule-1Interleukin-6NF-kappa BVascular Cell Adhesion Molecule-1

Identifiers

PMID10021466
PMCPMC408102
OpenAlexW2107993295

What OpenQuestion holds

Texttitle and abstract
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.