Evidence map›Paper›PMID 19100294›Full record

ArticleMolecular and biochemical parasitology2009

Towards an understanding of the mechanism of action of praziquantel.

Anthony D Aragon, Reza A Imani, Vint R Blackburn, Pauline M Cupit, Sandra D Melman, Tinopiwa Goronga, Thomas Webb, Eric S Loker, Charles Cunningham

Open access · greenAbstract read
In one paragraph

Article in Molecular and biochemical parasitology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

66 citing papers in PubMed, 147 citations in OpenAlex.

  1. Therapeutic challenges of schistosomiasis: mechanisms of action and current limitations.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2025
    Review
  2. Article
  3. Review
  4. Article
  5. Pathogens (Basel, Switzerland) · 2021
    Article
  6. Review
  7. Article
  8. Schistosoma mansoni sarco/endoplasmic reticulum CaJournal of bioenergetics and biomembranes · 2020
    Review
  9. Article
  10. Identification of annotated bioactive molecules that impair motility of the blood fluke Schistosoma mansoni.International journal for parasitology. Drugs and drug resistance · 2020
    Article
  11. Effect of Praziquantel onPathogens (Basel, Switzerland) · 2020
    Article
  12. Review
  13. Article
  14. Infection and drug resistance · 2020
    Article
  15. Article
  16. Real-time PCR for diagnosis of imported schistosomiasis.PLoS neglected tropical diseases · 2019
    Article
  17. Article
  18. Review
  19. Article
  20. Article

6 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

9 authors at 2 institutions in 1 country.

Anthony D AragonCenter for Evolutionary and Theoretical Immunology, Department of Biology, University of New Mexico, Albuquerque, NM 87131, USA.
Reza A Imani
Vint R Blackburn
Pauline M Cupit
Sandra D Melman
Tinopiwa Goronga
Thomas Webb
Eric S Loker
Charles Cunningham
University of New Mexico · USSt. Jude Children's Research Hospital · US

Funding

UNM COBRE: THEORETICAL STUDY OF SPECIFICITY OF RNA SILENCING MECHANISMP20RR018754 · NCRR · UNIVERSITY OF NEW MEXICO · PI LOKER, ERIC SAMUEL · 2003 to 2011
$16.7M
NCRR NIH HHS 1P20RR18754NCRR NIH HHS P20 RR018754
6 · The paper itself

Abstract

Although praziquantel (PZQ) has been used to treat schistosomiasis for over 20 years its mechanism of action remains unknown. We have developed an assay based on the transcriptional response of Schistosoma mansoni PR-1 to heat shock to confirm that while 6-week post-infection (p.i.) schistosomes are sensitive to PZQ, 4-week p.i. schistosomes are not. Further, we have used this assay to demonstrate that in mice this sensitivity develops between days 37 and 40 p.i. When PZQ is linked to the fluorophore BODIPY to aid microscopic visualization, it appears to enter the cells of intact 4 and 6-week p.i. schistosomes as well as mammalian NIH 3T3 cells with ease suggesting that the differential effects of PZQ is not based on cell exclusion. A transcriptomal analysis of gene expression between 4 and 6 weeks p.i. revealed 607 up-regulated candidate genes whose products are potential PZQ targets. A comparison of this gene list with that of genes expressed by PZQ sensitive miracidia reduced this target list to 247 genes, including a number involved in aerobic metabolism and cytosolic calcium regulation. Finally, we also report the effect of an in vitro sub-lethal exposure of PZQ on the transcriptome of S. mansoni PR-1. Annotation of genes differentially regulated by PZQ exposure suggests that schistosomes may undergo a transcriptomic response similar to that observed during oxidative stress.

Indexed as

AnimalsAnthelminticsGene Expression ProfilingGene Expression RegulationGenes, HelminthHeat-Shock ProteinsMiceNIH 3T3 CellsParasitic Sensitivity TestsPraziquantelReverse Transcriptase Polymerase Chain ReactionSchistosoma mansoniSchistosomiasisTime FactorsAnthelminticsHeat-Shock ProteinsPraziquantel

Identifiers

PMID19100294
PMCPMC2886009
OpenAlexW2011747671

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.