Evidence map›Paper›PMID 12010987›Full record

ArticleInfection and immunity2002

Proteomic analysis of differentially expressed Chlamydia pneumoniae genes during persistent infection of HEp-2 cells.

Robert E Molestina, Jon B Klein, Richard D Miller, William H Pierce, Julio A Ramirez, James T Summersgill

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

20 citing papers in PubMed, 86 citations in OpenAlex.

  1. Review
  2. Article
  3. Frontiers in microbiology · 2018
    Review
  4. Article
  5. Membrane vesicle production by Chlamydia trachomatis as an adaptive response.Frontiers in cellular and infection microbiology · 2014
    Review
  6. Review
  7. Laboratory diagnosis of persistent human chlamydial infection.Frontiers in cellular and infection microbiology · 2013
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  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

6 authors at 3 institutions in 1 country.

Robert E MolestinaDivision of Infectious Diseases, Department of Medicine, University of Louisville School of Medicine, University of Louisville, Louisville, Kentucky 40292, USA.
Jon B Klein
Richard D Miller
William H Pierce
Julio A Ramirez
James T Summersgill
Office of Infectious Diseases · USUnited States Department of Veterans Affairs · USUniversity of Louisville · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent data have shown that the respiratory pathogen Chlamydia pneumoniae expresses an altered gene transcription profile during gamma interferon (IFN-gamma)-induced persistent infection in vitro. In the present study, we examined, by proteomics, expression of C. pneumoniae proteins labeled intracellularly with [(35)S]methionine/cysteine under normal conditions or IFN-gamma-mediated persistence. The identity of differentially expressed proteins during persistent infection was determined by matching spots to those of proteins identified in C. pneumoniae elementary bodies by matrix-assisted laser desorption ionization mass spectrometry. Upon treatment with 50 U of IFN-gamma per ml, a marked upregulation of major outer membrane protein (MOMP), heat shock protein 60 (Hsp-60/GroEL), and proteins with functions in DNA replication (GyrA), transcription (RpoA, PnP), translation (Rrf), glycolysis (PgK, GlgP), and type III secretion (SctN) was observed at 24 h of infection. In contrast, no significant decreases in bacterial protein expression were found in C. pneumoniae-infected cells due to IFN-gamma treatment. Upregulation of C. pneumoniae proteins involved in diverse functions during persistent infection may allow the organism to resist the inhibitory effects of IFN-gamma while retaining basic functions. Future studies should examine the differential expression of chlamydial proteins during the developmental cycle under IFN-gamma pressure to obtain a finer representation of the gene products involved in establishing persistence.

Indexed as

Bacterial ProteinsChlamydia InfectionsChlamydophila pneumoniaeElectrophoresis, Gel, Two-DimensionalGene ExpressionGene Expression ProfilingGenes, BacterialHumansInterferon-gammaProteomeSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationTumor Cells, CulturedBacterial ProteinsInterferon-gammaProteome

Identifiers

PMID12010987
PMCPMC127979
OpenAlexW2133353877

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.