Modelling organophosphate intoxication in C. elegans highlights nicotinic acetylcholine receptor determinants that mitigate poisoning.

Organophosphate intoxication via acetylcholinesterase inhibition executes neurotoxicity via hyper stimulation of acetylcholine receptors. Here, we use the organophosphate paraoxon-ethyl to treat C. elegans and use its impact on pharyngeal pumping as a bio-assay to model poisoning through these neuro...

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Main Authors: Patricia G Izquierdo, Claude L Charvet, Cedric Neveu, A Christopher Green, John E H Tattersall, Lindy Holden-Dye, Vincent O'Connor
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0284786
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author Patricia G Izquierdo
Claude L Charvet
Cedric Neveu
A Christopher Green
John E H Tattersall
Lindy Holden-Dye
Vincent O'Connor
author_facet Patricia G Izquierdo
Claude L Charvet
Cedric Neveu
A Christopher Green
John E H Tattersall
Lindy Holden-Dye
Vincent O'Connor
author_sort Patricia G Izquierdo
collection DOAJ
description Organophosphate intoxication via acetylcholinesterase inhibition executes neurotoxicity via hyper stimulation of acetylcholine receptors. Here, we use the organophosphate paraoxon-ethyl to treat C. elegans and use its impact on pharyngeal pumping as a bio-assay to model poisoning through these neurotoxins. This assay provides a tractable measure of acetylcholine receptor mediated contraction of body wall muscle. Investigation of the time dependence of organophosphate treatment and the genetic determinants of the drug-induced inhibition of pumping highlight mitigating modulation of the effects of paraoxon-ethyl. We identified mutants that reduce acetylcholine receptor function protect against the consequence of intoxication by organophosphates. Data suggests that reorganization of cholinergic signalling is associated with organophosphate poisoning. This reinforces the under investigated potential of using therapeutic approaches which target a modulation of nicotinic acetylcholine receptor function to treat the poisoning effects of this important class of neurotoxins.
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spelling doaj.art-4f9d60c94fb44e47b32f26d8411096942023-05-10T05:31:47ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01184e028478610.1371/journal.pone.0284786Modelling organophosphate intoxication in C. elegans highlights nicotinic acetylcholine receptor determinants that mitigate poisoning.Patricia G IzquierdoClaude L CharvetCedric NeveuA Christopher GreenJohn E H TattersallLindy Holden-DyeVincent O'ConnorOrganophosphate intoxication via acetylcholinesterase inhibition executes neurotoxicity via hyper stimulation of acetylcholine receptors. Here, we use the organophosphate paraoxon-ethyl to treat C. elegans and use its impact on pharyngeal pumping as a bio-assay to model poisoning through these neurotoxins. This assay provides a tractable measure of acetylcholine receptor mediated contraction of body wall muscle. Investigation of the time dependence of organophosphate treatment and the genetic determinants of the drug-induced inhibition of pumping highlight mitigating modulation of the effects of paraoxon-ethyl. We identified mutants that reduce acetylcholine receptor function protect against the consequence of intoxication by organophosphates. Data suggests that reorganization of cholinergic signalling is associated with organophosphate poisoning. This reinforces the under investigated potential of using therapeutic approaches which target a modulation of nicotinic acetylcholine receptor function to treat the poisoning effects of this important class of neurotoxins.https://doi.org/10.1371/journal.pone.0284786
spellingShingle Patricia G Izquierdo
Claude L Charvet
Cedric Neveu
A Christopher Green
John E H Tattersall
Lindy Holden-Dye
Vincent O'Connor
Modelling organophosphate intoxication in C. elegans highlights nicotinic acetylcholine receptor determinants that mitigate poisoning.
PLoS ONE
title Modelling organophosphate intoxication in C. elegans highlights nicotinic acetylcholine receptor determinants that mitigate poisoning.
title_full Modelling organophosphate intoxication in C. elegans highlights nicotinic acetylcholine receptor determinants that mitigate poisoning.
title_fullStr Modelling organophosphate intoxication in C. elegans highlights nicotinic acetylcholine receptor determinants that mitigate poisoning.
title_full_unstemmed Modelling organophosphate intoxication in C. elegans highlights nicotinic acetylcholine receptor determinants that mitigate poisoning.
title_short Modelling organophosphate intoxication in C. elegans highlights nicotinic acetylcholine receptor determinants that mitigate poisoning.
title_sort modelling organophosphate intoxication in c elegans highlights nicotinic acetylcholine receptor determinants that mitigate poisoning
url https://doi.org/10.1371/journal.pone.0284786
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