Evidence map›Paper›PMID 22813531›Full record

ArticleJournal of medicinal chemistry2012

Discovery of a Plasmodium falciparum glucose-6-phosphate dehydrogenase 6-phosphogluconolactonase inhibitor (R,Z)-N-((1-ethylpyrrolidin-2-yl)methyl)-2-(2-fluorobenzylidene)-3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazine-6-carboxamide (ML276) that reduces parasite growth in vitro.

Janina Preuss, Patrick Maloney, Satyamaheshwar Peddibhotla, Michael P Hedrick, Paul Hershberger, Palak Gosalia, Monika Milewski, Yujie Linda Li, Eliot Sugarman, Becky Hood and 16 more

Abstract read
In one paragraph

Article in Journal of medicinal chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Revisiting theNPJ drug discovery · 2025
    Article
  2. Review
  3. Article
  4. Identification ofSaudi journal of biological sciences · 2022
    Article
  5. Article
  6. Review
  7. Article
  8. Predicted Biological Activity of Purchasable Chemical Space.Journal of chemical information and modeling · 2018
    Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. 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

26 authors.

Janina PreussDepartment of Pediatrics, University of California, San Diego, La Jolla, California 92037, United States.
Patrick Maloney
Satyamaheshwar Peddibhotla
Michael P Hedrick
Paul Hershberger
Palak Gosalia
Monika Milewski
Yujie Linda Li
Eliot Sugarman
Becky Hood
Eigo Suyama
Kevin Nguyen
Stefan Vasile
Eduard Sergienko
Arianna Mangravita-Novo
Michael Vicchiarelli
Danielle McAnally
Layton H Smith
Gregory P Roth
Jena Diwan
Thomas D Y Chung
Esther Jortzik
Stefan Rahlfs
Katja Becker
Anthony B Pinkerton
Lars Bode

Funding

Sanford-Burnham Center for Chemical GenomicsU54HG005033 · NHGRI · SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE · PI JACKSON, MICHAEL · 2008 to 2012
$72.5M
Identification of G6PD inhibitors for the development of novel antimalarial drugsR21AI082434 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BODE, LARS · 2009 to 2010
$427k
NHGRI NIH HHS U54 HG005033NHGRI NIH HHS U54 HG005033-03NIAID NIH HHS 1R21AI082434-01NIAID NIH HHS R21 AI082434
6 · The paper itself

Abstract

A high-throughput screen of the NIH's MLSMR collection of ∼340000 compounds was undertaken to identify compounds that inhibit Plasmodium falciparum glucose-6-phosphate dehydrogenase (PfG6PD). PfG6PD is important for proliferating and propagating P. falciparum and differs structurally and mechanistically from the human orthologue. The reaction catalyzed by glucose-6-phosphate dehydrogenase (G6PD) is the first, rate-limiting step in the pentose phosphate pathway (PPP), a key metabolic pathway sustaining anabolic needs in reductive equivalents and synthetic materials in fast-growing cells. In P. falciparum , the bifunctional enzyme glucose-6-phosphate dehydrogenase-6-phosphogluconolactonase (PfGluPho) catalyzes the first two steps of the PPP. Because P. falciparum and infected host red blood cells rely on accelerated glucose flux, they depend on the G6PD activity of PfGluPho. The lead compound identified from this effort, (R,Z)-N-((1-ethylpyrrolidin-2-yl)methyl)-2-(2-fluorobenzylidene)-3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazine-6-carboxamide, 11 (ML276), is a submicromolar inhibitor of PfG6PD (IC(50) = 889 nM). It is completely selective for the enzyme's human isoform, displays micromolar potency (IC(50) = 2.6 μM) against P. falciparum in culture, and has good drug-like properties, including high solubility and moderate microsomal stability. Studies testing the potential advantage of inhibiting PfG6PD in vivo are in progress.

Indexed as

AntimalarialsCarboxylic Ester HydrolasesDrug StabilityGlucosephosphate DehydrogenaseHigh-Throughput Screening AssaysMultienzyme ComplexesParasitic Sensitivity TestsPlasmodium falciparumSmall Molecule LibrariesStereoisomerismStructure-Activity RelationshipThiazinesAntimalarialsCarboxylic Ester Hydrolasesglucose-6-phosphate dehydrogenase-6-phosphogluconolactonase, Plasmodium falciparumGlucosephosphate DehydrogenaseMultienzyme ComplexesN-((1-ethylpyrrolidin-2-yl)methyl)-2-(2-fluorobenzylidene)-3-oxo-3,4-dihydro-2H-benzo(b)(1,4)thiazine-6-carboxamideSmall Molecule LibrariesThiazines

Identifiers

PMID22813531
PMCPMC3530835

What OpenQuestion holds

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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.