Evidence map›Paper›PMID 30624926›Full record

ArticleJournal of medicinal chemistry2019

Discovery of Selective Toxoplasma gondii Dihydrofolate Reductase Inhibitors for the Treatment of Toxoplasmosis.

Allen T Hopper, Adam Brockman, Andy Wise, Julie Gould, Jennifer Barks, Joshua B Radke, L David Sibley, Yongmao Zou, Stephen Thomas

Open access · greenAbstract read
In one paragraph

Article in Journal of medicinal chemistry, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing 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

30 citing papers in PubMed, 28 citations in OpenAlex.

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  7. Therapeutic effect of baicalein as an antiparasitic agent againstJournal of Zhejiang University. Science. B · 2025
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  12. Novel drug candidates targetingFrontiers in pharmacology · 2025
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  14. TaqMan-quantitative PCR assays applied inFrontiers in cellular and infection microbiology · 2024
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  20. TZD-Based Hybrid Molecules Act as Dual Anti-International journal of molecular sciences · 2023
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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 2 countries.

Allen T HopperVyera Pharmaceuticals, LLC , 600 Third Avenue, 10th Floor , New York , New York 10016 , United States.ORCID 0000-0001-8797-7882
Adam BrockmanVyera Pharmaceuticals, LLC , 600 Third Avenue, 10th Floor , New York , New York 10016 , United States.
Andy WiseEvotec (UK) LTD. , Alderley Park , Cheshire SK104TG , U.K.
Julie GouldEvotec (UK) LTD. , Alderley Park , Cheshire SK104TG , U.K.
Jennifer BarksDepartment of Molecular Microbiology , Washington University School of Medicine , 660 S. Euclid Avenue , St. Louis , Missouri 63130 , United States.
Joshua B RadkeDepartment of Molecular Microbiology , Washington University School of Medicine , 660 S. Euclid Avenue , St. Louis , Missouri 63130 , United States.
L David SibleyDepartment of Molecular Microbiology , Washington University School of Medicine , 660 S. Euclid Avenue , St. Louis , Missouri 63130 , United States.ORCID 0000-0001-7110-0285
Yongmao ZouWuXi AppTec (Tianjin) Co., Ltd. , 168 NanHai Road, 10th Avenue, TEDA , Tianjin 300457 , P. R. China.
Stephen ThomasVyera Pharmaceuticals, LLC , 600 Third Avenue, 10th Floor , New York , New York 10016 , United States.
Third Way · USWashington University in St. Louis · USEvotec (United States) · USWuXi AppTec (China) · CN

Funding

Molecular Basis of Human ToxoplasmosisR01AI118426 · NIAID · WASHINGTON UNIVERSITY · PI SIBLEY, L. DAVID · 2015 to 2024
$6.0M
NIAID NIH HHS R01 AI118426
6 · The paper itself

Abstract

A safer treatment for toxoplasmosis would be achieved by improving the selectivity and potency of dihydrofolate reductase (DHFR) inhibitors, such as pyrimethamine (1), for Toxoplasma gondii DHFR ( TgDHFR) relative to human DHFR ( hDHFR). We previously reported on the identification of meta-biphenyl analog 2, designed by in silico modeling of key differences in the binding pocket between TgDHFR and hDHFR. Compound 2 improves TgDHFR selectivity 6.6-fold and potency 16-fold relative to 1. Here, we report on the optimization and structure-activity relationships of this arylpiperazine series leading to the discovery of 5-(4-(3-(2-methoxypyrimidin-5-yl)phenyl)piperazin-1-yl)pyrimidine-2,4-diamine 3. Compound 3 has a TgDHFR IC

Indexed as

AnimalsAntiparasitic AgentsDogsFemaleFolic Acid AntagonistsHumansMadin Darby Canine Kidney CellsMCF-7 CellsMiceMolecular StructurePiperazinesPyrimidinesStructure-Activity RelationshipTetrahydrofolate DehydrogenaseToxoplasmaToxoplasmosisAntiparasitic AgentsFolic Acid AntagonistsPiperazinesPyrimidinesTetrahydrofolate Dehydrogenase

Identifiers

PMID30624926
PMCPMC6571122
OpenAlexW2909694842

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.