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Zebrafish-Based Discovery of Antiseizure Compounds from the North Sea: Isoquinoline Alkaloids TMC-120A and TMC-120B

There is a high need for the development of new and improved antiseizure drugs (ASDs) to treat epilepsy. Despite the potential of marine natural products (MNPs), the EU marine biodiscovery consortium PharmaSea has made the only effort to date to perform ASD discovery based on large-scale screening o...

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Autores principales: Copmans, Daniëlle, Kildgaard, Sara, Rasmussen, Silas A., Ślęzak, Monika, Dirkx, Nina, Partoens, Michèle, Esguerra, Camila V., Crawford, Alexander D., Larsen, Thomas O., de Witte, Peter A. M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6891649/
https://www.ncbi.nlm.nih.gov/pubmed/31731399
http://dx.doi.org/10.3390/md17110607
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author Copmans, Daniëlle
Kildgaard, Sara
Rasmussen, Silas A.
Ślęzak, Monika
Dirkx, Nina
Partoens, Michèle
Esguerra, Camila V.
Crawford, Alexander D.
Larsen, Thomas O.
de Witte, Peter A. M.
author_facet Copmans, Daniëlle
Kildgaard, Sara
Rasmussen, Silas A.
Ślęzak, Monika
Dirkx, Nina
Partoens, Michèle
Esguerra, Camila V.
Crawford, Alexander D.
Larsen, Thomas O.
de Witte, Peter A. M.
author_sort Copmans, Daniëlle
collection PubMed
description There is a high need for the development of new and improved antiseizure drugs (ASDs) to treat epilepsy. Despite the potential of marine natural products (MNPs), the EU marine biodiscovery consortium PharmaSea has made the only effort to date to perform ASD discovery based on large-scale screening of MNPs. To this end, the embryonic zebrafish photomotor response assay and the larval zebrafish pentylenetetrazole (PTZ) model were used to screen MNP extracts for neuroactivity and antiseizure activity, respectively. Here we report the identification of the two known isoquinoline alkaloids TMC-120A and TMC-120B as novel antiseizure compounds, which were isolated by bioactivity-guided purification from the marine-derived fungus Aspergillus insuetus. TMC-120A and TMC-120B were observed to significantly lower PTZ-induced seizures and epileptiform brain activity in the larval zebrafish PTZ seizure model. In addition, their structural analogues TMC-120C, penicisochroman G, and ustusorane B were isolated and also significantly lowered PTZ-induced seizures. Finally, TMC-120A and TMC-120B were investigated in a mouse model of drug-resistant focal seizures. Compound treatment significantly shortened the seizure duration, thereby confirming their antiseizure activity. These data underscore the possibility to translate findings in zebrafish to mice in the field of epilepsy and the potential of the marine environment for ASD discovery.
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spelling pubmed-68916492019-12-12 Zebrafish-Based Discovery of Antiseizure Compounds from the North Sea: Isoquinoline Alkaloids TMC-120A and TMC-120B Copmans, Daniëlle Kildgaard, Sara Rasmussen, Silas A. Ślęzak, Monika Dirkx, Nina Partoens, Michèle Esguerra, Camila V. Crawford, Alexander D. Larsen, Thomas O. de Witte, Peter A. M. Mar Drugs Article There is a high need for the development of new and improved antiseizure drugs (ASDs) to treat epilepsy. Despite the potential of marine natural products (MNPs), the EU marine biodiscovery consortium PharmaSea has made the only effort to date to perform ASD discovery based on large-scale screening of MNPs. To this end, the embryonic zebrafish photomotor response assay and the larval zebrafish pentylenetetrazole (PTZ) model were used to screen MNP extracts for neuroactivity and antiseizure activity, respectively. Here we report the identification of the two known isoquinoline alkaloids TMC-120A and TMC-120B as novel antiseizure compounds, which were isolated by bioactivity-guided purification from the marine-derived fungus Aspergillus insuetus. TMC-120A and TMC-120B were observed to significantly lower PTZ-induced seizures and epileptiform brain activity in the larval zebrafish PTZ seizure model. In addition, their structural analogues TMC-120C, penicisochroman G, and ustusorane B were isolated and also significantly lowered PTZ-induced seizures. Finally, TMC-120A and TMC-120B were investigated in a mouse model of drug-resistant focal seizures. Compound treatment significantly shortened the seizure duration, thereby confirming their antiseizure activity. These data underscore the possibility to translate findings in zebrafish to mice in the field of epilepsy and the potential of the marine environment for ASD discovery. MDPI 2019-10-25 /pmc/articles/PMC6891649/ /pubmed/31731399 http://dx.doi.org/10.3390/md17110607 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Copmans, Daniëlle
Kildgaard, Sara
Rasmussen, Silas A.
Ślęzak, Monika
Dirkx, Nina
Partoens, Michèle
Esguerra, Camila V.
Crawford, Alexander D.
Larsen, Thomas O.
de Witte, Peter A. M.
Zebrafish-Based Discovery of Antiseizure Compounds from the North Sea: Isoquinoline Alkaloids TMC-120A and TMC-120B
title Zebrafish-Based Discovery of Antiseizure Compounds from the North Sea: Isoquinoline Alkaloids TMC-120A and TMC-120B
title_full Zebrafish-Based Discovery of Antiseizure Compounds from the North Sea: Isoquinoline Alkaloids TMC-120A and TMC-120B
title_fullStr Zebrafish-Based Discovery of Antiseizure Compounds from the North Sea: Isoquinoline Alkaloids TMC-120A and TMC-120B
title_full_unstemmed Zebrafish-Based Discovery of Antiseizure Compounds from the North Sea: Isoquinoline Alkaloids TMC-120A and TMC-120B
title_short Zebrafish-Based Discovery of Antiseizure Compounds from the North Sea: Isoquinoline Alkaloids TMC-120A and TMC-120B
title_sort zebrafish-based discovery of antiseizure compounds from the north sea: isoquinoline alkaloids tmc-120a and tmc-120b
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6891649/
https://www.ncbi.nlm.nih.gov/pubmed/31731399
http://dx.doi.org/10.3390/md17110607
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