Evidence map›Paper›PMID 15215084›Full record

ArticleAntimicrobial agents and chemotherapy2004

In vitro and in vivo activities of E5700 and ER-119884, two novel orally active squalene synthase inhibitors, against Trypanosoma cruzi.

Julio A Urbina, Juan Luis Concepcion, Aura Caldera, Gilberto Payares, Cristina Sanoja, Takeshi Otomo, Hironobu Hiyoshi

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

22 citing papers in PubMed, 89 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. SQ109, a new drug lead for Chagas disease.Antimicrobial agents and chemotherapy · 2015
    Article
  7. Article
  8. Review
  9. Article
  10. Recent Developments in Sterol 14-demethylase Inhibitors for Chagas Disease.International journal for parasitology. Drugs and drug resistance · 2012
    Article
  11. Article
  12. Article
  13. Article
  14. Mechanism of action and inhibition of dehydrosqualene synthase.Proceedings of the National Academy of Sciences of the United States of America · 2010
    Article
  15. Article
  16. Drug targets in Leishmania.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2010
    Article
  17. Review
  18. Sterol Biosynthesis Pathway as Target for Anti-trypanosomatid Drugs.Interdisciplinary perspectives on infectious diseases · 2009
    Article
  19. Article
  20. 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

7 authors at 4 institutions in 2 countries.

Julio A UrbinaInstituto Venezolano de Investigaciones, Centro de Bioquimica y Biofisica, Altos de Pipe, Caracas 1020, Venezuela. jaurbina@ivic.ve
Juan Luis Concepcion
Aura Caldera
Gilberto Payares
Cristina Sanoja
Takeshi Otomo
Hironobu Hiyoshi
Central University of Venezuela · VEEisai (Japan) · JPInstituto Venezolano de Investigaciones Científicas · VEUniversity of the Andes · VE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chagas' disease is a serious public health problem in Latin America, and no treatment is available for the prevalent chronic stage. Its causative agent, Trypanosoma cruzi, requires specific endogenous sterols for survival, and we have recently demonstrated that squalene synthase (SQS) is a promising target for antiparasitic chemotherapy. E5700 and ER-119884 are quinuclidine-based inhibitors of mammalian SQS that are currently in development as cholesterol- and triglyceride-lowering agents in humans. These compounds were found to be potent noncompetitive or mixed-type inhibitors of T. cruzi SQS with K(i) values in the low nanomolar to subnanomolar range in the absence or presence of 20 microM inorganic pyrophosphate. The antiproliferative 50% inhibitory concentrations of the compounds against extracellular epimastigotes and intracellular amastigotes were ca. 10 nM and 0.4 to 1.6 nM, respectively, with no effects on host cells. When treated with these compounds at the MIC, all of the parasite's sterols disappeared from the parasite cells. In vivo studies indicated that E5700 was able to provide full protection against death and completely arrested the development of parasitemia when given at a concentration of 50 mg/kg of body weight/day for 30 days, while ER-119884 provided only partial protection. This is the first report of an orally active SQS inhibitor that is capable of providing complete protection against fulminant, acute Chagas' disease.

Indexed as

AnimalsCell DivisionEnzyme InhibitorsFarnesyl-Diphosphate FarnesyltransferaseFemaleKineticsLipid MetabolismMicePyridinesQuinuclidinesTrypanocidal AgentsTrypanosoma cruzi3-((2-benzyl-6-(3-hydroxy-4-methoxypyrrolidin-1-yl)pyridin-3-yl)ethynyl)quinuclidin-3-ol3-((2-benzyl-6-(3-methoxypropyloxy)pyridin-3-yl)ethynyl)quinuclidin-3-olEnzyme InhibitorsFarnesyl-Diphosphate FarnesyltransferasePyridinesQuinuclidinesTrypanocidal Agents

Identifiers

PMID15215084
PMCPMC434216
OpenAlexW2159634887

What OpenQuestion holds

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Read underepoch 390

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.