Bromophenols from Symphyocladia latiuscula (Harvey) Yamada as Novel Cholecystokinin 2 Receptor Antagonists

Background: Cholecystokinin (CCK) is one of the most abundant peptides in the central nervous system and is believed to function as a neurotransmitter as well as a gut hormone with an inverse correlation of its level to anxiety and depression. Therefore, CCK receptors (CCKRs) could be a relevant tar...

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Main Authors: Pradeep Paudel, Se Eun Park, Su Hui Seong, Fazlin Mohd Fauzi, Hyun Ah Jung, Jae Sue Choi
Format: Article
Language:English
Published: IMR Press 2023-01-01
Series:Journal of Integrative Neuroscience
Subjects:
Online Access:https://www.imrpress.com/journal/JIN/22/1/10.31083/j.jin2201010
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author Pradeep Paudel
Se Eun Park
Su Hui Seong
Fazlin Mohd Fauzi
Hyun Ah Jung
Jae Sue Choi
author_facet Pradeep Paudel
Se Eun Park
Su Hui Seong
Fazlin Mohd Fauzi
Hyun Ah Jung
Jae Sue Choi
author_sort Pradeep Paudel
collection DOAJ
description Background: Cholecystokinin (CCK) is one of the most abundant peptides in the central nervous system and is believed to function as a neurotransmitter as well as a gut hormone with an inverse correlation of its level to anxiety and depression. Therefore, CCK receptors (CCKRs) could be a relevant target for novel antidepressant therapy. Methods: In silico target prediction was first employed to predict the probability of the bromophenols interacting with key protein targets based on a model trained on known bioactivity data and chemical similarity considerations. Next, we tested the functional effect of natural bromophenols from Symphyocladia latiuscula on the CCK2 receptor followed by a molecular docking simulation to predict interactions between a compound and the binding site of the target protein. Results: Results of cell-based functional G-protein coupled receptor (GPCR) assays demonstrate that bromophenols 2,3,6-tribromo-4,5-dihydroxybenzyl alcohol (1), 2,3,6-tribromo-4,5-dihydroxybenzyl methyl ether (2), and bis-(2,3,6-tribromo-4,5-dihydroxybenzyl) ether (3) are full CCK2 antagonists. Molecular docking simulation of 1‒3 with CCK2 demonstrated strong binding by means of interaction with prime interacting residues: Arg356, Asn353, Val349, His376, Phe227, and Pro210. Simulation results predicted good binding scores and interactions with prime residues, such as the reference antagonist YM022. Conclusions: The results of this study suggest bromophenols 1–3 are CCK2R antagonists that could be novel therapeutic agents for CCK2R-related diseases, especially anxiety and depression.
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spelling doaj.art-abfd98517cf445d7b8a54c54cac331702023-02-01T08:23:27ZengIMR PressJournal of Integrative Neuroscience0219-63522023-01-012211010.31083/j.jin2201010S0219-6352(22)00449-1Bromophenols from Symphyocladia latiuscula (Harvey) Yamada as Novel Cholecystokinin 2 Receptor AntagonistsPradeep Paudel0Se Eun Park1Su Hui Seong2Fazlin Mohd Fauzi3Hyun Ah Jung4Jae Sue Choi5Department of Food and Life Science, Pukyong National University, 48513 Busan, Republic of KoreaDepartment of Food and Life Science, Pukyong National University, 48513 Busan, Republic of KoreaDepartment of Food and Life Science, Pukyong National University, 48513 Busan, Republic of KoreaDepartment of Pharmacology and Chemistry, Faculty of Pharmacy, Universiti Teknologi MARA, 42300 Bandar Puncak Alam, Selangor, MalaysiaDepartment of Food Science and Human Nutrition, Jeonbuk National University, 54896 Jeonju, Republic of KoreaDepartment of Food and Life Science, Pukyong National University, 48513 Busan, Republic of KoreaBackground: Cholecystokinin (CCK) is one of the most abundant peptides in the central nervous system and is believed to function as a neurotransmitter as well as a gut hormone with an inverse correlation of its level to anxiety and depression. Therefore, CCK receptors (CCKRs) could be a relevant target for novel antidepressant therapy. Methods: In silico target prediction was first employed to predict the probability of the bromophenols interacting with key protein targets based on a model trained on known bioactivity data and chemical similarity considerations. Next, we tested the functional effect of natural bromophenols from Symphyocladia latiuscula on the CCK2 receptor followed by a molecular docking simulation to predict interactions between a compound and the binding site of the target protein. Results: Results of cell-based functional G-protein coupled receptor (GPCR) assays demonstrate that bromophenols 2,3,6-tribromo-4,5-dihydroxybenzyl alcohol (1), 2,3,6-tribromo-4,5-dihydroxybenzyl methyl ether (2), and bis-(2,3,6-tribromo-4,5-dihydroxybenzyl) ether (3) are full CCK2 antagonists. Molecular docking simulation of 1‒3 with CCK2 demonstrated strong binding by means of interaction with prime interacting residues: Arg356, Asn353, Val349, His376, Phe227, and Pro210. Simulation results predicted good binding scores and interactions with prime residues, such as the reference antagonist YM022. Conclusions: The results of this study suggest bromophenols 1–3 are CCK2R antagonists that could be novel therapeutic agents for CCK2R-related diseases, especially anxiety and depression.https://www.imrpress.com/journal/JIN/22/1/10.31083/j.jin2201010bromophenolssymphyocladia latiusculacholecystokinin receptorgpcrsanxietydepression
spellingShingle Pradeep Paudel
Se Eun Park
Su Hui Seong
Fazlin Mohd Fauzi
Hyun Ah Jung
Jae Sue Choi
Bromophenols from Symphyocladia latiuscula (Harvey) Yamada as Novel Cholecystokinin 2 Receptor Antagonists
Journal of Integrative Neuroscience
bromophenols
symphyocladia latiuscula
cholecystokinin receptor
gpcrs
anxiety
depression
title Bromophenols from Symphyocladia latiuscula (Harvey) Yamada as Novel Cholecystokinin 2 Receptor Antagonists
title_full Bromophenols from Symphyocladia latiuscula (Harvey) Yamada as Novel Cholecystokinin 2 Receptor Antagonists
title_fullStr Bromophenols from Symphyocladia latiuscula (Harvey) Yamada as Novel Cholecystokinin 2 Receptor Antagonists
title_full_unstemmed Bromophenols from Symphyocladia latiuscula (Harvey) Yamada as Novel Cholecystokinin 2 Receptor Antagonists
title_short Bromophenols from Symphyocladia latiuscula (Harvey) Yamada as Novel Cholecystokinin 2 Receptor Antagonists
title_sort bromophenols from symphyocladia latiuscula harvey yamada as novel cholecystokinin 2 receptor antagonists
topic bromophenols
symphyocladia latiuscula
cholecystokinin receptor
gpcrs
anxiety
depression
url https://www.imrpress.com/journal/JIN/22/1/10.31083/j.jin2201010
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