A molecular modeling study of novel aldose reductase (AR) inhibitors

Aldose reductase (AR) is an enzyme of the polyol pathway implicated in long-term effect of diabetes mellitus. The development of new molecules as drugs for the inhibition of this enzyme is a growing area of research. Several <em>in vivo</em> and <em>in vitro</em> studies have...

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Main Authors: Auwal Muhammad, Kanikar Muangchoo, Ibrahim A. Muhammad, Ya'u S. Ajingi, Aliyu M. Bello, Ibrahim Y. Muhammad, Tasi'u A. Mika'il, Rakiya Aliyu
Format: Article
Language:English
Published: AIMS Press 2020-12-01
Series:AIMS Biophysics
Subjects:
Online Access:http://www.aimspress.com/article/doi/10.3934/biophy.2020026?viewType=HTML
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author Auwal Muhammad
Kanikar Muangchoo
Ibrahim A. Muhammad
Ya'u S. Ajingi
Aliyu M. Bello
Ibrahim Y. Muhammad
Tasi'u A. Mika'il
Rakiya Aliyu
author_facet Auwal Muhammad
Kanikar Muangchoo
Ibrahim A. Muhammad
Ya'u S. Ajingi
Aliyu M. Bello
Ibrahim Y. Muhammad
Tasi'u A. Mika'il
Rakiya Aliyu
author_sort Auwal Muhammad
collection DOAJ
description Aldose reductase (AR) is an enzyme of the polyol pathway implicated in long-term effect of diabetes mellitus. The development of new molecules as drugs for the inhibition of this enzyme is a growing area of research. Several <em>in vivo</em> and <em>in vitro</em> studies have been carried out to test the inhibitory effect of many organic compounds against AR, but the results have been limited due to their weak pharmacokinetic parameters and safety profile. In this study, molecular docking and molecular dynamics (MD) simulation were performed to establish the inhibitory effect of two critical bioactive compounds (astaxanthin and zeaxanthin) that were affirmed to be safe and powerful antioxidants. Docking studies revealed that both astaxanthin and zeaxanthin displays good binding affinity and inhibition to AR with binding energies of −5.88 kcal/mol and −5.63 kcal/mol, respectively. In contrast to epalrestat; the standard inhibitor having a binding energy of −5.62 kcal/mol. Amino acid residue analysis has shown that both compounds, including the standard inhibitor, bind to the same site due to their common interaction with Trp20 and Tyr48 at AR catalytic site. To complement molecular docking results, we performed MD simulations. The results show that the binding energies of the standard inhibitor, astaxanthin, and zeaxanthin are −134.3486 kJ/mol, −186.271 kJ/mol, and −123.557 kJ/mol, respectively. In both cases, astaxanthin displays better inhibition to AR followed by the standard inhibitor and zeaxanthin.
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spelling doaj.art-a9a43194245c433ea30b476c0cb94f182022-12-22T01:34:18ZengAIMS PressAIMS Biophysics2377-90982020-12-017438039210.3934/biophy.2020026A molecular modeling study of novel aldose reductase (AR) inhibitorsAuwal Muhammad0Kanikar Muangchoo1Ibrahim A. Muhammad 2Ya'u S. Ajingi 3Aliyu M. Bello4Ibrahim Y. Muhammad5Tasi'u A. Mika'il6Rakiya Aliyu71. Department of Physics, Faculty of Science, Kano University of Science and Technology (KUST), Wudil, Kano, Nigeria2. Faculty of Science and Technology, Rajamangala University of Technology Phranakhon (RMUTP), Bang Sue, Bangkok, Thailand3. Department of Biochemistry, Faculty of Science, Kano University of Science and Technology (KUST), Wudil, Kano, Nigeria4. Department of Biology, Faculty of Science, Kano University of Science and Technology (KUST), Wudil, Nigeria5. Department of Biochemistry, Faculty of Basic Medical Sciences, Bayero University Kano (BUK), Kano, Nigeria1. Department of Physics, Faculty of Science, Kano University of Science and Technology (KUST), Wudil, Kano, Nigeria3. Department of Biochemistry, Faculty of Science, Kano University of Science and Technology (KUST), Wudil, Kano, Nigeria1. Department of Physics, Faculty of Science, Kano University of Science and Technology (KUST), Wudil, Kano, NigeriaAldose reductase (AR) is an enzyme of the polyol pathway implicated in long-term effect of diabetes mellitus. The development of new molecules as drugs for the inhibition of this enzyme is a growing area of research. Several <em>in vivo</em> and <em>in vitro</em> studies have been carried out to test the inhibitory effect of many organic compounds against AR, but the results have been limited due to their weak pharmacokinetic parameters and safety profile. In this study, molecular docking and molecular dynamics (MD) simulation were performed to establish the inhibitory effect of two critical bioactive compounds (astaxanthin and zeaxanthin) that were affirmed to be safe and powerful antioxidants. Docking studies revealed that both astaxanthin and zeaxanthin displays good binding affinity and inhibition to AR with binding energies of −5.88 kcal/mol and −5.63 kcal/mol, respectively. In contrast to epalrestat; the standard inhibitor having a binding energy of −5.62 kcal/mol. Amino acid residue analysis has shown that both compounds, including the standard inhibitor, bind to the same site due to their common interaction with Trp20 and Tyr48 at AR catalytic site. To complement molecular docking results, we performed MD simulations. The results show that the binding energies of the standard inhibitor, astaxanthin, and zeaxanthin are −134.3486 kJ/mol, −186.271 kJ/mol, and −123.557 kJ/mol, respectively. In both cases, astaxanthin displays better inhibition to AR followed by the standard inhibitor and zeaxanthin.http://www.aimspress.com/article/doi/10.3934/biophy.2020026?viewType=HTMLaldose reductasebioactive compoundsbinding energymolecular dockingmolecular dynamics
spellingShingle Auwal Muhammad
Kanikar Muangchoo
Ibrahim A. Muhammad
Ya'u S. Ajingi
Aliyu M. Bello
Ibrahim Y. Muhammad
Tasi'u A. Mika'il
Rakiya Aliyu
A molecular modeling study of novel aldose reductase (AR) inhibitors
AIMS Biophysics
aldose reductase
bioactive compounds
binding energy
molecular docking
molecular dynamics
title A molecular modeling study of novel aldose reductase (AR) inhibitors
title_full A molecular modeling study of novel aldose reductase (AR) inhibitors
title_fullStr A molecular modeling study of novel aldose reductase (AR) inhibitors
title_full_unstemmed A molecular modeling study of novel aldose reductase (AR) inhibitors
title_short A molecular modeling study of novel aldose reductase (AR) inhibitors
title_sort molecular modeling study of novel aldose reductase ar inhibitors
topic aldose reductase
bioactive compounds
binding energy
molecular docking
molecular dynamics
url http://www.aimspress.com/article/doi/10.3934/biophy.2020026?viewType=HTML
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