Development of a CNS-permeable reactivator for nerve agent exposure: an iterative, multi-disciplinary approach

Abstract Nerve agents have experienced a resurgence in recent times with their use against civilian targets during the attacks in Syria (2012), the poisoning of Sergei and Yulia Skripal in the United Kingdom (2018) and Alexei Navalny in Russia (2020), strongly renewing the importance of antidote dev...

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Autores principales: Brian J. Bennion, Michael A. Malfatti, Nicholas A. Be, Heather A. Enright, Saphon Hok, C. Linn Cadieux, Timothy S. Carpenter, Victoria Lao, Edward A. Kuhn, M. Windy McNerney, Felice C. Lightstone, Tuan H. Nguyen, Carlos A. Valdez
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Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/f1620f48e97e419eb3cf95836925d7b8
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spelling oai:doaj.org-article:f1620f48e97e419eb3cf95836925d7b82021-12-02T16:23:42ZDevelopment of a CNS-permeable reactivator for nerve agent exposure: an iterative, multi-disciplinary approach10.1038/s41598-021-94963-22045-2322https://doaj.org/article/f1620f48e97e419eb3cf95836925d7b82021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94963-2https://doaj.org/toc/2045-2322Abstract Nerve agents have experienced a resurgence in recent times with their use against civilian targets during the attacks in Syria (2012), the poisoning of Sergei and Yulia Skripal in the United Kingdom (2018) and Alexei Navalny in Russia (2020), strongly renewing the importance of antidote development against these lethal substances. The current standard treatment against their effects relies on the use of small molecule-based oximes that can efficiently restore acetylcholinesterase (AChE) activity. Despite their efficacy in reactivating AChE, the action of drugs like 2-pralidoxime (2-PAM) is primarily limited to the peripheral nervous system (PNS) and, thus, provides no significant protection to the central nervous system (CNS). This lack of action in the CNS stems from their ionic nature that, on one end makes them very powerful reactivators and on the other renders them ineffective at crossing the Blood Brain Barrier (BBB) to reach the CNS. In this report, we describe the use of an iterative approach composed of parallel chemical and in silico syntheses, computational modeling, and a battery of detailed in vitro and in vivo assays that resulted in the identification of a promising, novel CNS-permeable oxime reactivator. Additional experiments to determine acute and chronic toxicity are ongoing.Brian J. BennionMichael A. MalfattiNicholas A. BeHeather A. EnrightSaphon HokC. Linn CadieuxTimothy S. CarpenterVictoria LaoEdward A. KuhnM. Windy McNerneyFelice C. LightstoneTuan H. NguyenCarlos A. ValdezNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Brian J. Bennion
Michael A. Malfatti
Nicholas A. Be
Heather A. Enright
Saphon Hok
C. Linn Cadieux
Timothy S. Carpenter
Victoria Lao
Edward A. Kuhn
M. Windy McNerney
Felice C. Lightstone
Tuan H. Nguyen
Carlos A. Valdez
Development of a CNS-permeable reactivator for nerve agent exposure: an iterative, multi-disciplinary approach
description Abstract Nerve agents have experienced a resurgence in recent times with their use against civilian targets during the attacks in Syria (2012), the poisoning of Sergei and Yulia Skripal in the United Kingdom (2018) and Alexei Navalny in Russia (2020), strongly renewing the importance of antidote development against these lethal substances. The current standard treatment against their effects relies on the use of small molecule-based oximes that can efficiently restore acetylcholinesterase (AChE) activity. Despite their efficacy in reactivating AChE, the action of drugs like 2-pralidoxime (2-PAM) is primarily limited to the peripheral nervous system (PNS) and, thus, provides no significant protection to the central nervous system (CNS). This lack of action in the CNS stems from their ionic nature that, on one end makes them very powerful reactivators and on the other renders them ineffective at crossing the Blood Brain Barrier (BBB) to reach the CNS. In this report, we describe the use of an iterative approach composed of parallel chemical and in silico syntheses, computational modeling, and a battery of detailed in vitro and in vivo assays that resulted in the identification of a promising, novel CNS-permeable oxime reactivator. Additional experiments to determine acute and chronic toxicity are ongoing.
format article
author Brian J. Bennion
Michael A. Malfatti
Nicholas A. Be
Heather A. Enright
Saphon Hok
C. Linn Cadieux
Timothy S. Carpenter
Victoria Lao
Edward A. Kuhn
M. Windy McNerney
Felice C. Lightstone
Tuan H. Nguyen
Carlos A. Valdez
author_facet Brian J. Bennion
Michael A. Malfatti
Nicholas A. Be
Heather A. Enright
Saphon Hok
C. Linn Cadieux
Timothy S. Carpenter
Victoria Lao
Edward A. Kuhn
M. Windy McNerney
Felice C. Lightstone
Tuan H. Nguyen
Carlos A. Valdez
author_sort Brian J. Bennion
title Development of a CNS-permeable reactivator for nerve agent exposure: an iterative, multi-disciplinary approach
title_short Development of a CNS-permeable reactivator for nerve agent exposure: an iterative, multi-disciplinary approach
title_full Development of a CNS-permeable reactivator for nerve agent exposure: an iterative, multi-disciplinary approach
title_fullStr Development of a CNS-permeable reactivator for nerve agent exposure: an iterative, multi-disciplinary approach
title_full_unstemmed Development of a CNS-permeable reactivator for nerve agent exposure: an iterative, multi-disciplinary approach
title_sort development of a cns-permeable reactivator for nerve agent exposure: an iterative, multi-disciplinary approach
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/f1620f48e97e419eb3cf95836925d7b8
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