Evidence map›Paper›PMID 27246778›Full record

ArticleAntimicrobial agents and chemotherapy2016

Acquired Tolerance to Ivermectin and Moxidectin after Drug Selection Pressure in the Nematode Caenorhabditis elegans.

Cécile Ménez, Mélanie Alberich, Dalia Kansoh, Alexandra Blanchard, Anne Lespine

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
7.9field-weighted citation impact, top 2% 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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Egg reappearance periods of anthelmintics against equine cyathostomins: The state of play revisited.International journal for parasitology. Drugs and drug resistance · 2023
    Pooled it
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  6. P-glycoproteins and amphids: a two-stage trajectory of ivermectin resistance in Caenorhabditis elegans.International journal for parasitology. Drugs and drug resistance · 2026
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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

5 authors at 3 institutions in 1 country.

Cécile MénezToxalim, Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France cecile.menez@toulouse.inra.fr.
Mélanie AlberichToxalim, Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France.
Dalia KansohToxalim, Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France.
Alexandra BlanchardINRA, UMR 1282 Infectiology and Public Health, Nouzilly, France Université François Rabelais de Tours, Tours, France.
Anne LespineToxalim, Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France.
École Nationale Vétérinaire de Toulouse · FRUniversité Fédérale de Toulouse Midi-Pyrénées · FRUniversité de Tours · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ivermectin and moxidectin are the most widely administered anthelmintic macrocyclic lactones (MLs) to treat human and animal nematode infections. Their widespread and frequent use has led to a high level of resistance to these drugs. Although they have the same mode of action, differences in terms of selection for drug resistance have been reported. Our objective was to study and compare changes occurring upon ivermectin or moxidectin selection in the model nematode Caenorhabditis elegans C. elegans worms were submitted to stepwise exposure to increasing doses of moxidectin. The sensitivity of moxidectin-selected worms to MLs was determined in a larval development assay and compared with those of wild-type and ivermectin-selected strains. Selection with either ivermectin or moxidectin led to acquired tolerance to ivermectin, moxidectin, and eprinomectin. Importantly, moxidectin was the most potent ML in both ivermectin- and moxidectin-selected strains. Interestingly, this order of potency was also observed in a resistant Haemonchus contortus isolate. In addition, ivermectin- and moxidectin-selected strains displayed constitutive overexpression of several genes involved in xenobiotic metabolism and transport. Moreover, verapamil potentiated sensitivity to ivermectin and moxidectin, demonstrating that ABC transporters play a role in ML sensitivity in ML-selected C. elegans strains. Finally, both ivermectin- and moxidectin-selected strains displayed a dye-filling-defective phenotype. Overall, this work demonstrated that selection with ivermectin or moxidectin led to cross-resistance to several MLs in nematodes and that the induction of detoxification systems and defects in the integrity of amphidial neurons are two mechanisms that appear to affect the responsiveness of worms to both ivermectin and moxidectin.

Indexed as

AnimalsCaenorhabditis elegansDrug ResistanceHaemonchusIvermectinLactonesLarvaMacrolidesPhenotypeVerapamileprinomectinIvermectinLactonesMacrolidesmoxidectinVerapamil

Identifiers

PMID27246778
PMCPMC4958191
OpenAlexW2413342642

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.