3D-QSAR, design, molecular docking and dynamics simulation studies of novel 6-hydroxybenzothiazole-2-carboxamides as potentially potent and selective monoamine oxidase B inhibitors

Background6-hydroxybenzothiazole-2-carboxamide is a novel, potent and specific inhibitor of monoamine oxidase B (MAO-B), which can be used to study the molecular structure and develop new neuroprotective strategies.ObjectiveThe aim of this study was to create an effective predictive model from 6-hyd...

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Main Authors: Dong Xie, Yongzheng Tian, Li Cao, Penghang Guo, Zhibiao Cai, Jie Zhou
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Pharmacology
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Online Access:https://www.frontiersin.org/articles/10.3389/fphar.2025.1545791/full
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author Dong Xie
Dong Xie
Yongzheng Tian
Li Cao
Penghang Guo
Penghang Guo
Zhibiao Cai
Jie Zhou
author_facet Dong Xie
Dong Xie
Yongzheng Tian
Li Cao
Penghang Guo
Penghang Guo
Zhibiao Cai
Jie Zhou
author_sort Dong Xie
collection DOAJ
description Background6-hydroxybenzothiazole-2-carboxamide is a novel, potent and specific inhibitor of monoamine oxidase B (MAO-B), which can be used to study the molecular structure and develop new neuroprotective strategies.ObjectiveThe aim of this study was to create an effective predictive model from 6-hydroxybenzothiazole-2-carboxamide derivatives to provide a reliable predictive basis for the development of neuroprotective MAO-B inhibitors for the treatment of neurodegenerative diseases.MethodsFirst, the compounds were constructed and optimized using ChemDraw and Sybyl-X software. Subsequently, QSAR modeling was performed using the COMSIA method in Sybyl-X to predict the IC50 values of a set of novel 6-hydroxybenzothiazole-2-carboxamide derivatives. The ten most promising compounds were screened based on the IC50 values and tested for molecular docking. Finally, the binding stability and dynamic behavior of these compounds with MAO-B receptors were analyzed by molecular dynamics simulation (MD).ResultsThe 3D-QSAR model showed good predictive ability, with a q2 value of 0.569, r2 value of 0.915, SEE of 0.109 and F value of 52.714 for the COMSIA model. Based on the model, we designed a series of novel 6-HBC derivatives and predicted their IC50 values by the QSAR model. Among them, compound 31.j3 exhibited the highest predicted IC50 value and obtained the highest score in the molecular docking test. MD simulation results showed that compound 31.j3 was stable in binding to the MAO-B receptor, and the RMSD values fluctuated between 1.0 and 2.0 Å, indicating its conformational stability. In addition, energy decomposition analysis revealed the contribution of key amino acid residues to the binding energy, especially Van der Waals interactions and electrostatic interactions play an important role in stabilizing the complex.ConclusionIn this study, the potential of 6-hydroxybenzothiazole-2-carboxamide derivatives as MAO-B inhibitors was systematically investigated by 3D-QSAR, molecular docking and MD simulations. The successfully designed compound 31.j3 not only demonstrated efficient inhibitory activity, but also verified its stable binding to MAO-B receptor by MD simulation, which provides strong support for the development of novel therapeutic drugs for neurodegenerative diseases. These findings provide important theoretical basis and practical guidance for future drug design and experimental validation.
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spelling doaj-art-9b8ba6af55ef415693ff0f4e6f4cb8512025-01-28T15:01:55ZengFrontiers Media S.A.Frontiers in Pharmacology1663-98122025-01-011610.3389/fphar.2025.154579115457913D-QSAR, design, molecular docking and dynamics simulation studies of novel 6-hydroxybenzothiazole-2-carboxamides as potentially potent and selective monoamine oxidase B inhibitorsDong Xie0Dong Xie1Yongzheng Tian2Li Cao3Penghang Guo4Penghang Guo5Zhibiao Cai6Jie Zhou7Department of Neurosurgery, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, ChinaDepartment of First Clinical College of Medicine, Gansu University of Traditional Chinese Medicine, Lanzhou, ChinaDepartment of First Clinical College of Medicine, Gansu University of Traditional Chinese Medicine, Lanzhou, ChinaDepartment of Neurosurgery, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, ChinaDepartment of Neurosurgery, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, ChinaDepartment of First Clinical College of Medicine, Gansu University of Traditional Chinese Medicine, Lanzhou, ChinaDepartment of Neurosurgery, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, ChinaDepartment of Neurosurgery, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, ChinaBackground6-hydroxybenzothiazole-2-carboxamide is a novel, potent and specific inhibitor of monoamine oxidase B (MAO-B), which can be used to study the molecular structure and develop new neuroprotective strategies.ObjectiveThe aim of this study was to create an effective predictive model from 6-hydroxybenzothiazole-2-carboxamide derivatives to provide a reliable predictive basis for the development of neuroprotective MAO-B inhibitors for the treatment of neurodegenerative diseases.MethodsFirst, the compounds were constructed and optimized using ChemDraw and Sybyl-X software. Subsequently, QSAR modeling was performed using the COMSIA method in Sybyl-X to predict the IC50 values of a set of novel 6-hydroxybenzothiazole-2-carboxamide derivatives. The ten most promising compounds were screened based on the IC50 values and tested for molecular docking. Finally, the binding stability and dynamic behavior of these compounds with MAO-B receptors were analyzed by molecular dynamics simulation (MD).ResultsThe 3D-QSAR model showed good predictive ability, with a q2 value of 0.569, r2 value of 0.915, SEE of 0.109 and F value of 52.714 for the COMSIA model. Based on the model, we designed a series of novel 6-HBC derivatives and predicted their IC50 values by the QSAR model. Among them, compound 31.j3 exhibited the highest predicted IC50 value and obtained the highest score in the molecular docking test. MD simulation results showed that compound 31.j3 was stable in binding to the MAO-B receptor, and the RMSD values fluctuated between 1.0 and 2.0 Å, indicating its conformational stability. In addition, energy decomposition analysis revealed the contribution of key amino acid residues to the binding energy, especially Van der Waals interactions and electrostatic interactions play an important role in stabilizing the complex.ConclusionIn this study, the potential of 6-hydroxybenzothiazole-2-carboxamide derivatives as MAO-B inhibitors was systematically investigated by 3D-QSAR, molecular docking and MD simulations. The successfully designed compound 31.j3 not only demonstrated efficient inhibitory activity, but also verified its stable binding to MAO-B receptor by MD simulation, which provides strong support for the development of novel therapeutic drugs for neurodegenerative diseases. These findings provide important theoretical basis and practical guidance for future drug design and experimental validation.https://www.frontiersin.org/articles/10.3389/fphar.2025.1545791/fullneuroprotective activity6-hydroxybenzothiazole-2-carboxamidemonoamine oxidase BQSARCoMSIA
spellingShingle Dong Xie
Dong Xie
Yongzheng Tian
Li Cao
Penghang Guo
Penghang Guo
Zhibiao Cai
Jie Zhou
3D-QSAR, design, molecular docking and dynamics simulation studies of novel 6-hydroxybenzothiazole-2-carboxamides as potentially potent and selective monoamine oxidase B inhibitors
Frontiers in Pharmacology
neuroprotective activity
6-hydroxybenzothiazole-2-carboxamide
monoamine oxidase B
QSAR
CoMSIA
title 3D-QSAR, design, molecular docking and dynamics simulation studies of novel 6-hydroxybenzothiazole-2-carboxamides as potentially potent and selective monoamine oxidase B inhibitors
title_full 3D-QSAR, design, molecular docking and dynamics simulation studies of novel 6-hydroxybenzothiazole-2-carboxamides as potentially potent and selective monoamine oxidase B inhibitors
title_fullStr 3D-QSAR, design, molecular docking and dynamics simulation studies of novel 6-hydroxybenzothiazole-2-carboxamides as potentially potent and selective monoamine oxidase B inhibitors
title_full_unstemmed 3D-QSAR, design, molecular docking and dynamics simulation studies of novel 6-hydroxybenzothiazole-2-carboxamides as potentially potent and selective monoamine oxidase B inhibitors
title_short 3D-QSAR, design, molecular docking and dynamics simulation studies of novel 6-hydroxybenzothiazole-2-carboxamides as potentially potent and selective monoamine oxidase B inhibitors
title_sort 3d qsar design molecular docking and dynamics simulation studies of novel 6 hydroxybenzothiazole 2 carboxamides as potentially potent and selective monoamine oxidase b inhibitors
topic neuroprotective activity
6-hydroxybenzothiazole-2-carboxamide
monoamine oxidase B
QSAR
CoMSIA
url https://www.frontiersin.org/articles/10.3389/fphar.2025.1545791/full
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