Evidence map›Paper›PMID 17827347›Full record

ArticleEukaryotic cell2007

Identification of an Entamoeba histolytica serine-, threonine-, and isoleucine-rich protein with roles in adhesion and cytotoxicity.

Ryan C MacFarlane, Upinder Singh

Open access · diamondAbstract read
In one paragraph

Article in Eukaryotic cell, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.3field-weighted citation impact, top 13% 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

38 citing papers in PubMed, 55 citations in OpenAlex.

  1. Review
  2. Article
  3. Exploring virulence and stress response inMicrobiology spectrum · 2025
    Article
  4. Review
  5. Diversity and Plasticity of Virulent Characteristics ofTropical medicine and infectious disease · 2023
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Regulation of virulence of Entamoeba histolytica.Annual review of microbiology · 2014
    Review
  18. Article
  19. Article
  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.

Ryan C MacFarlaneDepartment of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California 94305-5124, USA.
Upinder Singh
Stanford University · US

Funding

Supplement to Enhance Wellness and Resiliency in the Graduate EnvironmentT32GM007276 · NIGMS · STANFORD UNIVERSITY · PI MORRISON, ASHBY J. · 1985 to 2023
$32.9M
Investigating Entamoeba histolytica Colonic PathogenesisR01AI053724 · NIAID · STANFORD UNIVERSITY · PI SINGH, UPINDER · 2003 to 2012
$3.8M
NIAID NIH HHS AI-053724NIAID NIH HHS R01 AI053724NIGMS NIH HHS 5 T32 GM007276NIGMS NIH HHS T32 GM007276
6 · The paper itself

Abstract

Entamoeba histolytica is a leading cause of parasitic death globally. However, the molecular framework regulating pathogenesis is poorly understood. We have previously used expression profiling to identify Entamoeba genes whose expressions were strictly associated with virulent strains (R. C. MacFarlane and U. Singh, Infect. Immun. 74:340-351, 2006). One gene, which we have named EhSTIRP (Entamoeba histolytica serine-, threonine-, and isoleucine-rich protein), was exclusively expressed in virulent but not in nonvirulent Entamoeba strains. EhSTIRP is predicted to be a transmembrane protein and is encoded by a multigene family. In order to characterize its function in amebic biology, we used a double-stranded RNA-based approach and were able to selectively down-regulate expression of this gene family. Upon EhSTIRP down-regulation, we were able to ascribe cytotoxic and adhesive properties to the protein family using lactate dehydrogenase release and Chinese hamster ovary cell adhesion assays. EhSTIRP thus likely represents a novel determinant of virulence in Entamoeba histolytica. This work validates the fact that genes expressed exclusively in virulent strains may represent virulence determinants and highlights the need for further functional analyses of other genes with similar expression profiles.

Indexed as

Amino AcidsAnimalsCell AdhesionCell DeathCHO CellsCricetinaeCricetulusDown-RegulationEntamoeba histolyticaProtozoan ProteinsTrophozoitesAmino AcidsProtozoan Proteins

Identifiers

PMID17827347
PMCPMC2168410
OpenAlexW2152417786

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.