Evidence map›Paper›PMID 33141865›Full record

ArticlePLoS pathogens2020

Veterinary trypanocidal benzoxaboroles are peptidase-activated prodrugs.

Federica Giordani, Daniel Paape, Isabel M Vincent, Andrew W Pountain, Fernando Fernández-Cortés, Eva Rico, Ning Zhang, Liam J Morrison, Yvonne Freund, Michael J Witty and 9 more

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.5field-weighted citation impact, top 10% 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, 32 citations in OpenAlex.

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  8. Drug resistance in animal trypanosomiases: Epidemiology, mechanisms and control strategies.International journal for parasitology. Drugs and drug resistance · 2024
    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

19 authors at 5 institutions in 3 countries.

Federica GiordaniWellcome Centre for Integrative Parasitology, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom.ORCID 0000-0001-9964-281X
Daniel PaapeWellcome Centre for Integrative Parasitology, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom.ORCID 0000-0003-4355-8058
Isabel M VincentWellcome Centre for Integrative Parasitology, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom.ORCID 0000-0003-2663-4389
Andrew W PountainWellcome Centre for Integrative Parasitology, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom.ORCID 0000-0001-9651-5145
Fernando Fernández-CortésWellcome Centre for Integrative Parasitology, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom.ORCID 0000-0001-9362-2164
Eva RicoWellcome Centre for Anti-Infectives Research, School of Life Sciences, University of Dundee, Dundee, United Kingdom.
Ning ZhangWellcome Centre for Anti-Infectives Research, School of Life Sciences, University of Dundee, Dundee, United Kingdom.
Liam J MorrisonRoslin Institute, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, United Kingdom.ORCID 0000-0002-8304-9066
Yvonne FreundAnacor Pharmaceuticals, Inc., Palo Alto, California, United States of America.
Michael J WittyGlobal Alliance for Livestock and Veterinary Medicine, Pentlands Science Park, Penicuik, Edinburgh, United Kingdom.ORCID 0000-0003-4094-7154
Rosemary PeterGlobal Alliance for Livestock and Veterinary Medicine, Pentlands Science Park, Penicuik, Edinburgh, United Kingdom.
Darren Y EdwardsWellcome Centre for Anti-Infectives Research, School of Life Sciences, University of Dundee, Dundee, United Kingdom.ORCID 0000-0001-8245-8928
Jonathan M WilkesWellcome Centre for Integrative Parasitology, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom.
Justin J J van der HooftGlasgow Polyomics, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.ORCID 0000-0002-9340-5511
Clément RegnaultGlasgow Polyomics, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.
Kevin D ReadWellcome Centre for Anti-Infectives Research, School of Life Sciences, University of Dundee, Dundee, United Kingdom.ORCID 0000-0002-8536-0130
David HornWellcome Centre for Anti-Infectives Research, School of Life Sciences, University of Dundee, Dundee, United Kingdom.ORCID 0000-0001-5173-9284
Mark C FieldWellcome Centre for Anti-Infectives Research, School of Life Sciences, University of Dundee, Dundee, United Kingdom.ORCID 0000-0002-4866-2885
Michael P BarrettWellcome Centre for Integrative Parasitology, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom.ORCID 0000-0001-9447-3519
Wellcome Centre for Molecular Parasitology · GBUniversity of Dundee · GBGlobal Alliance for Livestock Veterinary Medicines · GBUniversity of Glasgow · GBRoslin Institute · GB

Funding

Biotechnology and Biological Sciences Research Council BB/S001034/1Medical Research Council MR/L018853/1Medical Research Council MR/S019650/1Wellcome Trust 100320/Z/ 12/ZWellcome Trust 104111/Z/14/ ZWellcome Trust 203134/Z/ 16/ZWellcome Trust 203134/Z/16/Z
6 · The paper itself

Abstract

Livestock diseases caused by Trypanosoma congolense, T. vivax and T. brucei, collectively known as nagana, are responsible for billions of dollars in lost food production annually. There is an urgent need for novel therapeutics. Encouragingly, promising antitrypanosomal benzoxaboroles are under veterinary development. Here, we show that the most efficacious subclass of these compounds are prodrugs activated by trypanosome serine carboxypeptidases (CBPs). Drug-resistance to a development candidate, AN11736, emerged readily in T. brucei, due to partial deletion within the locus containing three tandem copies of the CBP genes. T. congolense parasites, which possess a larger array of related CBPs, also developed resistance to AN11736 through deletion within the locus. A genome-scale screen in T. brucei confirmed CBP loss-of-function as the primary mechanism of resistance and CRISPR-Cas9 editing proved that partial deletion within the locus was sufficient to confer resistance. CBP re-expression in either T. brucei or T. congolense AN11736-resistant lines restored drug-susceptibility. CBPs act by cleaving the benzoxaborole AN11736 to a carboxylic acid derivative, revealing a prodrug activation mechanism. Loss of CBP activity results in massive reduction in net uptake of AN11736, indicating that entry is facilitated by the concentration gradient created by prodrug metabolism.

Indexed as

AnimalsBoron CompoundsCarboxylic AcidsCarboxypeptidasesDrug ResistanceFemaleLivestockMiceParasitemiaProdrugsProtozoan ProteinsTrypanocidal AgentsTrypanosoma brucei bruceiTrypanosoma congolenseTrypanosoma vivaxTrypanosomiasis, AfricanAN11736Boron CompoundsCarboxylic AcidsCarboxypeptidasesProdrugsProtozoan Proteinsserine carboxypeptidaseTrypanocidal AgentsValine

Identifiers

PMID33141865
PMCPMC7710103
OpenAlexW3096747647

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.