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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2021
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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) |
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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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