Evidence map›Paper›PMID 30679614›Full record

ArticleScientific reports2019

Discovery of novel hit compounds with broad activity against visceral and cutaneous Leishmania species by comparative phenotypic screening.

S Lamotte, N Aulner, G F Späth, E Prina

Erratum issuedAbstract readComparative Study
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
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

14 citing papers in PubMed.

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  11. Towards discovery of new leishmanicidal scaffolds able to inhibitJournal of enzyme inhibition and medicinal chemistry · 2020
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

S LamotteInstitut Pasteur, Molecular Parasitology and Signaling, INSERM U1201, Department of Parasites and Insect Vectors, Paris, France.
N AulnerInstitut Pasteur, UTechS Photonic BioImaging, Center for Technological Research and Resources, 75015, Paris, France.
G F SpäthInstitut Pasteur, Molecular Parasitology and Signaling, INSERM U1201, Department of Parasites and Insect Vectors, Paris, France. gerald.spaeth@pasteur.fr.ORCID 0000-0002-0256-2029
E PrinaInstitut Pasteur, Molecular Parasitology and Signaling, INSERM U1201, Department of Parasites and Insect Vectors, Paris, France. eric.prina@pasteur.fr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The limited success of recent phenotypic anti-leishmanial drug screening campaigns calls for new screening strategies for the discovery of clinically relevant hits. Here we present such a novel strategy based on physiologically relevant, ex vivo biology. We established high content phenotypic assays that combine primary murine macrophages and lesion-derived, virulent L. donovani and L. amazonensis amastigotes, which we applied to validate previously identified, anti-leishmanial hit compounds referred to as 'GSK Leish-Box'. Together with secondary screens using cultured promastigotes, our pipeline distinguished stage- and/or species-specific compounds, including 20 hits with broad activity at 10 µM against intracellular amastigotes of both viscerotropic and dermotropic Leishmania. Even though the GSK Leish-Box hits were identified by phenotypic screening using THP-1 macrophage-like cells hosting culture-derived L. donovani LdBob parasites, our ex vivo assays only validated anti-leishmanial activity at 10 µM on intra-macrophagic L. donovani for 23 out of the 188 GSK Leish-Box hits. In conclusion, our comparative approach allowed the identification of hits with broad anti-leishmanial activity that represent interesting novel candidates to be tested in animal models. Physiologically more relevant screening approaches such as described here may reduce the very high attrition rate observed during pre-clinical and clinical phases of the drug development process.

Indexed as

AnimalsAntiprotozoal AgentsCells, CulturedDrug Evaluation, PreclinicalHumansLeishmania donovaniLeishmania mexicanaLeishmaniasis, CutaneousLeishmaniasis, VisceralMacrophagesMice, Inbred BALB CMolecular StructurePhenotypeSpecies SpecificityTHP-1 CellsVirulenceAntiprotozoal Agents

Identifiers

PMID30679614
PMCPMC6345745

What OpenQuestion holds

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Registered trials

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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.