{"title":"有机溶剂对乙酰胆碱酯酶抑制及酶动力学的影响。","authors":"Dnyaneshwar Baswar, Awanish Mishra","doi":"10.2174/1871524923666230417094549","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>The most widespread signalling system in the brain is the cholinergic system, which plays a central role in the progress of Alzheimer's diseases (AD). Current AD treatment primarily targets the neuronal acetylcholinesterase (AChE) enzyme. The finding of AChE activity may play a vital role in optimizing assays for drug discovery of new AChE inhibiting agents. During in-vitro assay of AChE activity, the use of various organic solvents is imperative.</p><p><strong>Objective: </strong>The present study is designed to evaluate the effect of different organic solvents on enzyme activity and enzyme kinetics.</p><p><strong>Method: </strong>Organic solvents' AChE inhibitory potential (including enzyme kinetics: Vmax, Km and Kcat) was evaluated using substrate velocity curve by using non-linear reversion Michaelis-Menten kinetic function.</p><p><strong>Results: </strong>DMSO was found to have the most potent AChE inhibitory effect, followed by acetonitrile and ethanol. The kinetic study revealed DMSO as a mixed inhibitory effect (competitive/noncompetitive manner), ethanol as non-competitive, and acetonitrile as a competitive inhibitor of the AChE enzyme. Methanol has shown a negligible impact on enzyme inhibition and kinetics, suggesting its suitability for the AChE assay.</p><p><strong>Conclusion: </strong>We assume that our study results will help design the experimental protocols and support analyzing investigational outcomes while screening and biological evaluation of new molecules using methanol as solvent/cosolvent.</p>","PeriodicalId":9799,"journal":{"name":"Central nervous system agents in medicinal chemistry","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Organic Solvents on Acetylcholinesterase Inhibition and Enzyme Kinetics.\",\"authors\":\"Dnyaneshwar Baswar, Awanish Mishra\",\"doi\":\"10.2174/1871524923666230417094549\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>The most widespread signalling system in the brain is the cholinergic system, which plays a central role in the progress of Alzheimer's diseases (AD). Current AD treatment primarily targets the neuronal acetylcholinesterase (AChE) enzyme. The finding of AChE activity may play a vital role in optimizing assays for drug discovery of new AChE inhibiting agents. During in-vitro assay of AChE activity, the use of various organic solvents is imperative.</p><p><strong>Objective: </strong>The present study is designed to evaluate the effect of different organic solvents on enzyme activity and enzyme kinetics.</p><p><strong>Method: </strong>Organic solvents' AChE inhibitory potential (including enzyme kinetics: Vmax, Km and Kcat) was evaluated using substrate velocity curve by using non-linear reversion Michaelis-Menten kinetic function.</p><p><strong>Results: </strong>DMSO was found to have the most potent AChE inhibitory effect, followed by acetonitrile and ethanol. The kinetic study revealed DMSO as a mixed inhibitory effect (competitive/noncompetitive manner), ethanol as non-competitive, and acetonitrile as a competitive inhibitor of the AChE enzyme. Methanol has shown a negligible impact on enzyme inhibition and kinetics, suggesting its suitability for the AChE assay.</p><p><strong>Conclusion: </strong>We assume that our study results will help design the experimental protocols and support analyzing investigational outcomes while screening and biological evaluation of new molecules using methanol as solvent/cosolvent.</p>\",\"PeriodicalId\":9799,\"journal\":{\"name\":\"Central nervous system agents in medicinal chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Central nervous system agents in medicinal chemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2174/1871524923666230417094549\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Psychology\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Central nervous system agents in medicinal chemistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2174/1871524923666230417094549","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Psychology","Score":null,"Total":0}
Effect of Organic Solvents on Acetylcholinesterase Inhibition and Enzyme Kinetics.
Background: The most widespread signalling system in the brain is the cholinergic system, which plays a central role in the progress of Alzheimer's diseases (AD). Current AD treatment primarily targets the neuronal acetylcholinesterase (AChE) enzyme. The finding of AChE activity may play a vital role in optimizing assays for drug discovery of new AChE inhibiting agents. During in-vitro assay of AChE activity, the use of various organic solvents is imperative.
Objective: The present study is designed to evaluate the effect of different organic solvents on enzyme activity and enzyme kinetics.
Method: Organic solvents' AChE inhibitory potential (including enzyme kinetics: Vmax, Km and Kcat) was evaluated using substrate velocity curve by using non-linear reversion Michaelis-Menten kinetic function.
Results: DMSO was found to have the most potent AChE inhibitory effect, followed by acetonitrile and ethanol. The kinetic study revealed DMSO as a mixed inhibitory effect (competitive/noncompetitive manner), ethanol as non-competitive, and acetonitrile as a competitive inhibitor of the AChE enzyme. Methanol has shown a negligible impact on enzyme inhibition and kinetics, suggesting its suitability for the AChE assay.
Conclusion: We assume that our study results will help design the experimental protocols and support analyzing investigational outcomes while screening and biological evaluation of new molecules using methanol as solvent/cosolvent.
期刊介绍:
Central Nervous System Agents in Medicinal Chemistry aims to cover all the latest and outstanding developments in medicinal chemistry and rational drug design for the discovery of new central nervous system agents. Containing a series of timely in-depth reviews written by leaders in the field covering a range of current topics, Central Nervous System Agents in Medicinal Chemistry is an essential journal for every medicinal chemist who wishes to be kept informed and up-to-date with the latest and most important developments in the field.