Evidence map›Paper›PMID 24189262›Full record

ArticleAntimicrobial agents and chemotherapy2014

Simple colorimetric trypanothione reductase-based assay for high-throughput screening of drugs against Leishmania intracellular amastigotes.

Erika van den Bogaart, Gerard J Schoone, Paul England, Dorien Faber, Kristina M Orrling, Jean-Claude Dujardin, Shyam Sundar, Henk D F H Schallig, Emily R Adams

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 18% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Challenges and Tools for In VitroPathogens (Basel, Switzerland) · 2021
    Review
  9. A Review of Analytical Methods for Codeine Determination.Molecules (Basel, Switzerland) · 2021
    Review
  10. Determination of anti-leishmanial drugs efficacy againstParasite epidemiology and control · 2020
    Article
  11. Drug design, development and therapy · 2020
    Article
  12. Article
  13. L-Asparaginase of Leishmania donovani: Metabolic target and its role in Amphotericin B resistance.International journal for parasitology. Drugs and drug resistance · 2017
    Article
  14. Review
  15. Article
  16. 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

9 authors at 4 institutions in 3 countries.

Erika van den BogaartDepartment of Biomedical Research, Royal Tropical Institute, Amsterdam, the Netherlands.
Gerard J Schoone
Paul England
Dorien Faber
Kristina M Orrling
Jean-Claude Dujardin
Shyam Sundar
Henk D F H Schallig
Emily R Adams
Royal Tropical Institute · NLInstitute of Medical Sciences · INUniversity of Antwerp · BEVrije Universiteit Amsterdam · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Critical to the search for new anti-leishmanial drugs is the availability of high-throughput screening (HTS) methods to test chemical compounds against the relevant stage for pathogenesis, the intracellular amastigotes. Recent progress in automated microscopy and genetic recombination has produced powerful tools for drug discovery. Nevertheless, a simple and efficient test for measuring drug activity against Leishmania clinical isolates is lacking. Here we describe a quantitative colorimetric assay in which the activity of a Leishmania native enzyme is used to assess parasite viability. Enzymatic reduction of disulfide trypanothione, monitored by a microtiter plate reader, was used to quantify the growth of Leishmania parasites. An excellent correlation was found between the optical density at 412 nm and the number of parasites inoculated. Pharmacological validation of the assay was performed against the conventional alamarBlue method for promastigotes and standard microscopy for intracellular amastigotes. The activity of a selected-compound panel, including several anti-leishmanial reference drugs, demonstrated high consistency between the newly developed assay and the reference method and corroborated previously published data. Quality assessment with standard measures confirmed the robustness and reproducibility of the assay, which performed in compliance with HTS requirements. This simple and rapid assay provides a reliable, accurate method for screening anti-leishmanial agents, with high throughput. The basic equipment and manipulation required to perform the assay make it easy to implement, simplifying the method for scoring inhibitor assays.

Indexed as

Cell LineColorimetryDrug Evaluation, PreclinicalHigh-Throughput Screening AssaysHumansLeishmaniaNADH, NADPH OxidoreductasesReproducibility of ResultsTrypanocidal AgentsNADH, NADPH OxidoreductasesTrypanocidal Agentstrypanothione reductase

Identifiers

PMID24189262
PMCPMC3910791
OpenAlexW2003069094

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.