Evidence map›Paper›PMID 11254605›Full record

ArticleInfection and immunity2001

Persistent Chlamydia trachomatis infections resist apoptotic stimuli.

D Dean, V C Powers

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 1 pooled it
7.6field-weighted citation impact, top 2% 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

54 citing papers in PubMed, 1 synthesis or guideline pooled it, 143 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Infection and immunity · 2026
    Article
  4. Review
  5. Appraisal of the causal effect ofmedRxiv : the preprint server for health sciences · 2024
    Article
  6. Bortezomib Eliminates PersistentInternational journal of molecular sciences · 2022
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Chlamydial intracellular survival strategies.Cold Spring Harbor perspectives in medicine · 2013
    Review
  15. Article
  16. The role of infectious agents in urogenital cancers.Infectious agents and cancer · 2012
    Article
  17. Article
  18. Article
  19. Review
  20. Article
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

2 authors at 1 institution in 1 country.

D DeanChildren's Hospital Oakland Research Institute, Oakland, California 94609, USA. ddean@chori.org
V C Powers
University of California, San Francisco · US

Funding

Pathogenesis of Persistent Chlamydial STDsR01AI039499 · NIAID · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI DEAN, DEBORAH ANNE · 1997 to 2007
$1.3M
NIAID NIH HHS R01 AI039499NIAID NIH HHS R01 AI39499
6 · The paper itself

Abstract

Microbial modulation of apoptosis has added a new dimension of understanding to the dynamic interaction between the human host and its microbial invaders. Persistent infection can be a by-product of inhibition of apoptosis and may significantly impact the pathogenesis of diseases caused by organisms such as Chlamydia trachomatis. We compared apoptotic responses among HeLa 229 cells acutely and persistently infected and mock infected with serovar A/HAR-13. Persistence was induced by gamma interferon at 0.2 and 2.0 ng/ml. Cells were treated with etoposide or staurosporine at 24-h intervals and assayed for apoptosis by cell count, DNA ladder formation, and cytochrome c translocation. From the 24- to 120-h time points, infected cultures were 87 and 90% viable for etoposide and staurosporine treatment, respectively, and produced no DNA ladder, and cytochrome c remained in the mitochondria. In contrast, mock-infected cells were 22 and 37% viable for etoposide (P = 0.0001) and staurosporine (P = 0.01), respectively, and displayed characteristic DNA ladders, and cytochrome c was translocated. We found that resistance to apoptotic stimuli was identical in acute and persistent infections. Since cytochrome c was not translocated from the mitochondrion, caspase-9 activity was likely not involved. The expression of chlamydial hsp60, a known stimulator of inflammation in vivo, was measured in both active and persistent infections by Western blot, with increased production in the latter with or without staurosporine treatment. Chlamydial disregulation of apoptosis and the ensuing persistence of organisms offer an alternative pathogenic mechanism for chlamydial scarring observed in trachoma and infertility populations via sustained inflammation induced by immunoreactive molecules such as hsp60.

Indexed as

ApoptosisPorinsBacterial Outer Membrane ProteinsChaperonin 60Chlamydia trachomatisCytochrome c GroupCytoplasmHeLa CellsHumansInterferon-gammaProto-Oncogene Proteins c-bcl-2Bacterial Outer Membrane ProteinsChaperonin 60Cytochrome c GroupInterferon-gammaomp1 protein, Chlamydia trachomatisPorinsProto-Oncogene Proteins c-bcl-2

Identifiers

PMID11254605
PMCPMC98177
OpenAlexW2102078972

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.