Evidence map›Paper›PMID 18778413›Full record

ArticleCellular microbiology2009

Entamoeba histolytica modulates a complex repertoire of novel genes in response to oxidative and nitrosative stresses: implications for amebic pathogenesis.

João B Vicente, Gretchen M Ehrenkaufer, Lígia M Saraiva, Miguel Teixeira, Upinder Singh

Open access · bronzeAbstract read
In one paragraph

Article in Cellular microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

61 citing papers in PubMed, 100 citations in OpenAlex.

  1. Interactions ofMicrobiology spectrum · 2026
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  6. Diversity and Plasticity of Virulent Characteristics ofTropical medicine and infectious disease · 2023
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  8. The Role of Acetate Kinase in the Human ParasiteParasitologia (Basel, Switzerland) · 2022
    Article
  9. Microorganisms · 2021
    Review
  10. Host-Parasite Interaction of Atlantic salmon (Frontiers in immunology · 2021
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Advances inFrontiers in microbiology · 2019
    Review
  19. Article
  20. Article

1 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

5 authors at 1 institution in 1 country.

João B VicenteDepartment of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305-5107, USA.
Gretchen M Ehrenkaufer
Lígia M Saraiva
Miguel Teixeira
Upinder Singh
Stanford University · US

Funding

Investigating Entamoeba histolytica Colonic PathogenesisR01AI053724 · NIAID · STANFORD UNIVERSITY · PI SINGH, UPINDER · 2003 to 2012
$3.8M
Identification of Transcriptional Regulatory Networks in Entamoeba HistolyticaR21AI069382 · NIAID · STANFORD UNIVERSITY · PI SINGH, UPINDER · 2007 to 2008
$431k
Developing Tools to Study Encystation in Entamoeba HistolyticaR21AI068899 · NIAID · STANFORD UNIVERSITY · PI SINGH, UPINDER · 2006 to 2007
$423k
NIAID NIH HHS AI-053724NIAID NIH HHS AI-068899NIAID NIH HHS AI-069382NIAID NIH HHS R01 AI053724NIAID NIH HHS R21 AI068899NIAID NIH HHS R21 AI069382
6 · The paper itself

Abstract

Upon host infection, the protozoan parasite Entamoeba histolytica is confronted with reactive oxygen and nitrogen species and must survive these stresses in order to cause invasive disease. We analysed the parasite's response to oxidative and nitrosative stresses, probing the transcriptional changes of trophozoites of a pathogenic strain after a 60 min exposure to H2O2 (1 mM) or a NO donor (dipropylenetriamine-NONOate, 200 microM), using whole-genome DNA microarrays. Genes encoding reactive oxygen and nitrogen species detoxification enzymes had high transcriptional levels under basal conditions and upon exposure to both stresses. On a whole-genome level, there was significant modulation of gene expression by H2O2 (286 genes regulated) and dipropylenetriamine-NONOate (1036 genes regulated) with a significant overlap of genes modulated under both conditions (164 genes). A number of transcriptionally regulated genes were in signalling/regulatory and repair/metabolic pathways. However, the majority of genes with altered transcription encode unknown proteins, suggesting as yet unraveled response pathways in E. histolytica. Trophozoites of a non-pathogenic E. histolytica strain had a significantly muted transcriptional response to H2O2 compared with the pathogenic strain, hinting that differential response to oxidative stress may be one factor that contributes to the pathogenic potential of E. histolytica.

Indexed as

Gene Expression RegulationAlkenesAnimalsAntiprotozoal AgentsEntamoeba histolyticaGene Expression ProfilingGenes, ProtozoanHydrogen PeroxideNitrosationOligonucleotide Array Sequence AnalysisOxidative StressAlkenesAntiprotozoal Agentsdipropylenetriamine-NONOateHydrogen Peroxide

Identifiers

PMID18778413
PMCPMC3418052
OpenAlexW2092042635

What OpenQuestion holds

Textmetadata
LicenceTDM
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.