FN Archimer Export Format PT J TI Pinnatoxins’ Deleterious Effects on Cholinergic Networks: From Experimental Models to Human Health BT AF Delcourt, Nicolas Lagrange, Emmeline Abadie, Eric Fessard, Valérie Frémy, Jean-Marc Vernoux, Jean-Paul Peyrat, Marie-Bénédicte Maignien, Thomas Arnich, Nathalie Molgó, Jordi Mattei, César AS 1:1;2:2;3:3;4:4;5:5;6:6;7:7;8:7;9:7;10:8,9;11:10; FF 1:;2:;3:PDG-ODE-LITTORAL-LERLR;4:;5:;6:;7:;8:;9:;10:;11:; C1 Poison Control Centre, Toulouse-Purpan University Hospital and Toulouse NeuroImaging Centre (ToNIC), INSERM1214, Toulouse-Purpan University Hospital, 31059 Toulouse, France Department of Neurology, Reference Center of Neuromuscular Disease, Grenoble University Hospital, 38000 Grenoble, France Laboratoire Environnement Ressources du Languedoc-Roussillon, Centre for Marine Biodiversity, Exploitation and Conservation (MARBEC), IRD, Institut Français de Recherche pour l’Exploitation de la Mer (Ifremer), CNRS, Université de Montpellier, CS30171, 34200 Sete Cedex 03, France Toxicology of Contaminants Unit, ANSES—French Agency for Food, Environmental and Occupational Health & Safety, 35306 Fougères, France Retired from ANSES—French Agency for Food, Environmental and Occupational Health & Safety, 94701 Maisons-Alfort, France Research Unit EA 4651 Aliments Bioprocédés Toxicologie Environnements (ABTE), Normandie University, 14000 Caen, France Risk Assessment Department, ANSES—French Agency for Food, Environmental and Occupational Health & Safety, 94701 Maisons-Alfort, France Institut des Sciences du Vivant Frédéric Joliot, Service d’Ingénierie Moléculaire des Protéines (SIMOPRO), Commissariat à l’Energie Atomique et aux énergies alternatives (CEA) Saclay, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France Institut des Neurosciences Paris-Saclay, Centre National de la Recherche Scientifique (CNRS), UMR 9197 CNRS/Université Paris-Sud, F-91198 Gif-sur-Yvette, France Mitochondrial and Cardiovascular Pathophysiology (MITOVASC), Cardiovascular Mechanotransduction, UMR CNRS 6015, INSERM U1083, Angers University, 49045 Angers, France C2 INSERM, FRANCE UNIV GRENOBLE, FRANCE IFREMER, FRANCE ANSES, FRANCE ANSES, FRANCE UNIV NORMANDIE, FRANCE ANSES, FRANCE CEA, FRANCE CNRS, FRANCE UNIV ANGERS, FRANCE SI SETE SE PDG-ODE-LITTORAL-LERLR UM MARBEC IN WOS Ifremer UMR DOAJ copubli-france copubli-univ-france IF 1.103 TC 12 UR https://archimer.ifremer.fr/doc/00507/61883/65958.pdf LA English DT Article DE ;pinnatoxins;cyclic imines;Vulcanodinium rugosum;nicotinic acetylcholine receptors;acute neurotoxicity;human intoxication;myasthenia gravis AB Pinnatoxins (PnTXs) are emerging neurotoxins that were discovered about 30 years ago. They are solely produced by the marine dinoflagellate Vulcanodinium rugosum, and may be transferred into the food chain, as they have been found in various marine invertebrates, including bivalves. No human intoxication has been reported to date although acute toxicity was induced by PnTxs in rodents. LD50 values have been estimated for the different PnTXs through the oral route. At sublethal doses, all symptoms are reversible, and no neurological sequelae are visible. These symptoms are consistent with impairment of central and peripheral cholinergic network functions. In fact, PnTXs are high-affinity competitive antagonists of nicotinic acetylcholine receptors (nAChRs). Moreover, their lethal effects are consistent with the inhibition of muscle nAChRs, inducing respiratory distress and paralysis. Human intoxication by ingestion of PnTXs could result in various symptoms observed in episodes of poisoning with natural nAChR antagonists. This review updates the available data on PnTX toxicity with a focus on their mode of action on cholinergic networks and suggests the effects that could be extrapolated on human physiology. PY 2019 PD JUN SO Marine Drugs SN 1660-3397 PU MDPI AG VL 17 IS 7 UT 000478650600036 DI 10.3390/md17070425 ID 61883 ER EF