Neurotoxins from Marine Dinoflagellates: A Brief Review

Dinoflagellates are not only important marine primary producers and grazers, but also the major causative agents of harmful algal blooms. It has been reported that many dinoflagellate species can produce various natural toxins. These toxins can be extremely toxic and many of them are effective at fa...

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Main Author: Da-Zhi Wang
Format: Article
Language:English
Published: MDPI AG 2008-06-01
Series:Marine Drugs
Subjects:
Online Access:http://www.mdpi.com/1660-3397/6/2/349/
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author Da-Zhi Wang
author_facet Da-Zhi Wang
author_sort Da-Zhi Wang
collection DOAJ
description Dinoflagellates are not only important marine primary producers and grazers, but also the major causative agents of harmful algal blooms. It has been reported that many dinoflagellate species can produce various natural toxins. These toxins can be extremely toxic and many of them are effective at far lower dosages than conventional chemical agents. Consumption of seafood contaminated by algal toxins results in various seafood poisoning syndromes: paralytic shellfish poisoning (PSP), neurotoxic shellfish poisoning (NSP), amnesic shellfish poisoning (ASP), diarrheic shellfish poisoning (DSP), ciguatera fish poisoning (CFP) and azaspiracid shellfish poisoning (ASP). Most of these poisonings are caused by neurotoxins which present themselves with highly specific effects on the nervous system of animals, including humans, by interfering with nerve impulse transmission. Neurotoxins are a varied group of compounds, both chemically and pharmacologically. They vary in both chemical structure and mechanism of action, and produce very distinct biological effects, which provides a potential application of these toxins in pharmacology and toxicology. This review summarizes the origin, structure and clinical symptoms of PSP, NSP, CFP, AZP, yessotoxin and palytoxin produced by marine dinoflagellates, as well as their molecular mechanisms of action on voltage-gated ion channels.
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spelling doaj.art-5b47818b5f4d4c98bf0045f83be5d7012022-12-22T02:54:41ZengMDPI AGMarine Drugs1660-33972008-06-0162349371Neurotoxins from Marine Dinoflagellates: A Brief ReviewDa-Zhi WangDinoflagellates are not only important marine primary producers and grazers, but also the major causative agents of harmful algal blooms. It has been reported that many dinoflagellate species can produce various natural toxins. These toxins can be extremely toxic and many of them are effective at far lower dosages than conventional chemical agents. Consumption of seafood contaminated by algal toxins results in various seafood poisoning syndromes: paralytic shellfish poisoning (PSP), neurotoxic shellfish poisoning (NSP), amnesic shellfish poisoning (ASP), diarrheic shellfish poisoning (DSP), ciguatera fish poisoning (CFP) and azaspiracid shellfish poisoning (ASP). Most of these poisonings are caused by neurotoxins which present themselves with highly specific effects on the nervous system of animals, including humans, by interfering with nerve impulse transmission. Neurotoxins are a varied group of compounds, both chemically and pharmacologically. They vary in both chemical structure and mechanism of action, and produce very distinct biological effects, which provides a potential application of these toxins in pharmacology and toxicology. This review summarizes the origin, structure and clinical symptoms of PSP, NSP, CFP, AZP, yessotoxin and palytoxin produced by marine dinoflagellates, as well as their molecular mechanisms of action on voltage-gated ion channels.http://www.mdpi.com/1660-3397/6/2/349/Dinoflagellatesneurotoxinsvoltage-gated ion channelsmolecular action mechanismparalytic shellfish poisoningneurotoxic shellfish poisoningciguatera fish poisoningazaspiracid poisoningyessotoxinpalytoxin
spellingShingle Da-Zhi Wang
Neurotoxins from Marine Dinoflagellates: A Brief Review
Marine Drugs
Dinoflagellates
neurotoxins
voltage-gated ion channels
molecular action mechanism
paralytic shellfish poisoning
neurotoxic shellfish poisoning
ciguatera fish poisoning
azaspiracid poisoning
yessotoxin
palytoxin
title Neurotoxins from Marine Dinoflagellates: A Brief Review
title_full Neurotoxins from Marine Dinoflagellates: A Brief Review
title_fullStr Neurotoxins from Marine Dinoflagellates: A Brief Review
title_full_unstemmed Neurotoxins from Marine Dinoflagellates: A Brief Review
title_short Neurotoxins from Marine Dinoflagellates: A Brief Review
title_sort neurotoxins from marine dinoflagellates a brief review
topic Dinoflagellates
neurotoxins
voltage-gated ion channels
molecular action mechanism
paralytic shellfish poisoning
neurotoxic shellfish poisoning
ciguatera fish poisoning
azaspiracid poisoning
yessotoxin
palytoxin
url http://www.mdpi.com/1660-3397/6/2/349/
work_keys_str_mv AT dazhiwang neurotoxinsfrommarinedinoflagellatesabriefreview