Evidence map›Paper›PMID 28935948›Full record

ArticleScientific reports2017

Novel scaffolds for inhibition of Cruzipain identified from high-throughput screening of anti-kinetoplastid chemical boxes.

Emir Salas-Sarduy, Lionel Urán Landaburu, Joel Karpiak, Kevin P Madauss, Juan José Cazzulo, Fernán Agüero, Vanina Eder Alvarez

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. 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 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 7% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Repurposing of rabeprazole as an anti-Journal of enzyme inhibition and medicinal chemistry · 2023
    Article
  4. Thio- and selenosemicarbazones as antiprotozoal agents againstJournal of enzyme inhibition and medicinal chemistry · 2022
    Article
  5. Article
  6. Article
  7. Article
  8. Towards discovery of new leishmanicidal scaffolds able to inhibitJournal of enzyme inhibition and medicinal chemistry · 2020
    Article
  9. Review
  10. Article
  11. Review
  12. Current trends in the pharmacological management of Chagas disease.International journal for parasitology. Drugs and drug resistance · 2020
    Review
  13. Carbamoyl-RSC advances · 2020
    Article
  14. Review
  15. Article
  16. Article
  17. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 2 countries.

Emir Salas-SarduyInstituto de Investigaciones Biotecnológicas - Instituto Tecnológico de Chascomús, Universidad Nacional de San Martín - CONICET, San Martin, B1650HMP, Buenos Aires, Argentina.
Lionel Urán LandaburuInstituto de Investigaciones Biotecnológicas - Instituto Tecnológico de Chascomús, Universidad Nacional de San Martín - CONICET, San Martin, B1650HMP, Buenos Aires, Argentina.
Joel KarpiakGlaxoSmithKline R&D, Molecular Design US, Pennsylvania, Upper Providence PA, USA.
Kevin P MadaussGlaxoSmithKline R&D, Trust in Science, Pennsylvania, Upper Providence PA, USA.
Juan José CazzuloInstituto de Investigaciones Biotecnológicas - Instituto Tecnológico de Chascomús, Universidad Nacional de San Martín - CONICET, San Martin, B1650HMP, Buenos Aires, Argentina.
Fernán AgüeroInstituto de Investigaciones Biotecnológicas - Instituto Tecnológico de Chascomús, Universidad Nacional de San Martín - CONICET, San Martin, B1650HMP, Buenos Aires, Argentina. fernan.aguero@gmail.com.ORCID 0000-0003-1331-5741
Vanina Eder AlvarezInstituto de Investigaciones Biotecnológicas - Instituto Tecnológico de Chascomús, Universidad Nacional de San Martín - CONICET, San Martin, B1650HMP, Buenos Aires, Argentina. vanina.eder.alvarez@gmail.com.
Consejo Nacional de Investigaciones Científicas y Técnicas · ARProvidence College · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

American Trypanosomiasis or Chagas disease is a prevalent, neglected and serious debilitating illness caused by the kinetoplastid protozoan parasite Trypanosoma cruzi. The current chemotherapy is limited only to nifurtimox and benznidazole, two drugs that have poor efficacy in the chronic phase and are rather toxic. In this scenario, more efficacious and safer drugs, preferentially acting through a different mechanism of action and directed against novel targets, are particularly welcome. Cruzipain, the main papain-like cysteine peptidase of T. cruzi, is an important virulence factor and a chemotherapeutic target with excellent pre-clinical validation evidence. Here, we present the identification of new Cruzipain inhibitory scaffolds within the GlaxoSmithKline HAT (Human African Trypanosomiasis) and Chagas chemical boxes, two collections grouping 404 non-cytotoxic compounds with high antiparasitic potency, drug-likeness, structural diversity and scientific novelty. We have adapted a continuous enzymatic assay to a medium-throughput format and carried out a primary screening of both collections, followed by construction and analysis of dose-response curves of the most promising hits. Using the identified compounds as a starting point a substructure directed search against CHEMBL Database revealed plausible common scaffolds while docking experiments predicted binding poses and specific interactions between Cruzipain and the novel inhibitors.

Indexed as

Antiprotozoal AgentsChagas DiseaseCysteine EndopeptidasesHigh-Throughput Screening AssaysHost-Parasite InteractionsHumansKinetoplastidaMolecular Docking SimulationMolecular StructureNifurtimoxNitroimidazolesProtein DomainsProtozoan ProteinsTrypanosoma cruziAntiprotozoal AgentsbenzonidazolecruzipainCysteine EndopeptidasesNifurtimoxNitroimidazolesProtozoan Proteins

Identifiers

PMID28935948
PMCPMC5608908
OpenAlexW2755085907

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.