Evidence map›Paper›PMID 20142509›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2010

Repositioning of an existing drug for the neglected tropical disease Onchocerciasis.

Christian Gloeckner, Amanda L Garner, Fana Mersha, Yelena Oksov, Nancy Tricoche, Lisa M Eubanks, Sara Lustigman, Gunnar F Kaufmann, Kim D Janda

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

40 citing papers in PubMed, 104 citations in OpenAlex.

  1. Review
  2. DInternational journal of molecular sciences · 2024
    Article
  3. Review
  4. Article
  5. Current status of usage of ivermectin in the management of COVID.Journal of advanced pharmaceutical technology & research · 2022
    Article
  6. Article
  7. Structure-based virtual screening of highly potent inhibitors of the nematode chitinaseJournal of enzyme inhibition and medicinal chemistry · 2021
    Article
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  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
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  18. Review
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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 3 institutions in 1 country.

Christian GloecknerDepartment of Chemistry and Immunology, The Skaggs Institute for Chemical Biology, La Jolla, CA 92037, USA.
Amanda L Garner
Fana Mersha
Yelena Oksov
Nancy Tricoche
Lisa M Eubanks
Sara Lustigman
Gunnar F Kaufmann
Kim D Janda
New York Blood Center · USUniversity of Montana · USScripps Research Institute · US

Funding

Catalytic Antibody-Based Vaccine For Weight LossF32DK083179 · NIDDK · SCRIPPS RESEARCH INSTITUTE, THE · PI GARNER, AMANDA · 2008 to 2010
$92k
NIDDK NIH HHS F32 DK083179NIDDK NIH HHS F32 DK083179-01
6 · The paper itself

Abstract

Onchocerciasis, or river blindness, is a neglected tropical disease caused by the filarial nematode Onchocerca volvulus that affects more than 37 million people, mainly in third world countries. Currently, the only approved drug available for mass treatment is ivermectin, however, drug resistance is beginning to emerge, thus, new therapeutic targets and agents are desperately needed to treat and cure this devastating disease. Chitin metabolism plays a central role in invertebrate biology due to the critical structural function of chitin for the organism. Taken together with its absence in mammals, targeting chitin is an appealing therapeutic avenue. Importantly, the chitinase OvCHT1 from O. volvulus was recently discovered, however, its exact role in the worm's metabolism remains unknown. A screening effort against OvCHT1 was conducted using the Johns Hopkins Clinical Compound Library that contains over 1,500 existing drugs. Closantel, a veterinary anthelmintic with known proton ionophore activities, was identified as a potent and specific inhibitor of filarial chitinases, an activity not previously reported for this compound. Notably, closantel was found also to completely inhibit molting of O. volvulus infective L3 stage larvae. Closantel appears to target two important biochemical processes essential to filarial parasites. To begin to unravel closantel's effects, a retro-fragment-based study was used to define structural elements critical for closantel's chitinase inhibitor function. As resources towards the development of new agents that target neglected tropical diseases are scant, the finding of an existing drug with impact against O. volvulus provides promise in the hunt for new therapies against river blindness.

Indexed as

Drug DiscoveryAnimalsAnthelminticsChitinChitinasesEnzyme InhibitorsHumansInhibitory Concentration 50MoltingOnchocercaOnchocerciasisSalicylanilidesSmall Molecule LibrariesAnthelminticsChitinChitinasesclosantelEnzyme InhibitorsSalicylanilidesSmall Molecule Libraries

Identifiers

PMID20142509
PMCPMC2840490
OpenAlexW1991646180

What OpenQuestion holds

Textmetadata
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.