Synthesis of a Coumarin-Based PPARγ Fluorescence Probe for Competitive Binding Assay

Peroxisome proliferator-activated receptor γ (PPARγ) is a molecular target of metabolic syndrome and inflammatory disease. PPARγ is an important nuclear receptor and numerous PPARγ ligands were developed to date; thus, efficient assay methods are important. Here, we investigated the incorporation of...

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Main Authors: Chisato Yoshikawa, Hiroaki Ishida, Nami Ohashi, Toshimasa Itoh
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/22/8/4034
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author Chisato Yoshikawa
Hiroaki Ishida
Nami Ohashi
Toshimasa Itoh
author_facet Chisato Yoshikawa
Hiroaki Ishida
Nami Ohashi
Toshimasa Itoh
author_sort Chisato Yoshikawa
collection DOAJ
description Peroxisome proliferator-activated receptor γ (PPARγ) is a molecular target of metabolic syndrome and inflammatory disease. PPARγ is an important nuclear receptor and numerous PPARγ ligands were developed to date; thus, efficient assay methods are important. Here, we investigated the incorporation of 7-diethylamino coumarin into the PPARγ agonist rosiglitazone and used the compound in a binding assay for PPARγ. PPARγ-ligand-incorporated 7-methoxycoumarin, <b>1</b>, showed weak fluorescence intensity in a previous report. We synthesized PPARγ-ligand-incorporating coumarin, <b>2</b>, in this report, and it enhanced the fluorescence intensity. The PPARγ ligand <b>2</b> maintained the rosiglitazone activity. The obtained partial agonist <b>6</b> appeared to act through a novel mechanism. The fluorescence intensity of <b>2</b> and <b>6</b> increased by binding to the ligand binding domain (LBD) of PPARγ and the affinity of reported PPARγ ligands were evaluated using the probe.
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spelling doaj.art-8d87543d0b9a46578e72dfbae7f87a442023-11-21T15:33:14ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-04-01228403410.3390/ijms22084034Synthesis of a Coumarin-Based PPARγ Fluorescence Probe for Competitive Binding AssayChisato Yoshikawa0Hiroaki Ishida1Nami Ohashi2Toshimasa Itoh3Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, JapanLaboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, JapanLaboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, JapanLaboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, JapanPeroxisome proliferator-activated receptor γ (PPARγ) is a molecular target of metabolic syndrome and inflammatory disease. PPARγ is an important nuclear receptor and numerous PPARγ ligands were developed to date; thus, efficient assay methods are important. Here, we investigated the incorporation of 7-diethylamino coumarin into the PPARγ agonist rosiglitazone and used the compound in a binding assay for PPARγ. PPARγ-ligand-incorporated 7-methoxycoumarin, <b>1</b>, showed weak fluorescence intensity in a previous report. We synthesized PPARγ-ligand-incorporating coumarin, <b>2</b>, in this report, and it enhanced the fluorescence intensity. The PPARγ ligand <b>2</b> maintained the rosiglitazone activity. The obtained partial agonist <b>6</b> appeared to act through a novel mechanism. The fluorescence intensity of <b>2</b> and <b>6</b> increased by binding to the ligand binding domain (LBD) of PPARγ and the affinity of reported PPARγ ligands were evaluated using the probe.https://www.mdpi.com/1422-0067/22/8/4034PPARγ ligandcoumarinfluorescent ligandscreeningcrystal structure
spellingShingle Chisato Yoshikawa
Hiroaki Ishida
Nami Ohashi
Toshimasa Itoh
Synthesis of a Coumarin-Based PPARγ Fluorescence Probe for Competitive Binding Assay
International Journal of Molecular Sciences
PPARγ ligand
coumarin
fluorescent ligand
screening
crystal structure
title Synthesis of a Coumarin-Based PPARγ Fluorescence Probe for Competitive Binding Assay
title_full Synthesis of a Coumarin-Based PPARγ Fluorescence Probe for Competitive Binding Assay
title_fullStr Synthesis of a Coumarin-Based PPARγ Fluorescence Probe for Competitive Binding Assay
title_full_unstemmed Synthesis of a Coumarin-Based PPARγ Fluorescence Probe for Competitive Binding Assay
title_short Synthesis of a Coumarin-Based PPARγ Fluorescence Probe for Competitive Binding Assay
title_sort synthesis of a coumarin based pparγ fluorescence probe for competitive binding assay
topic PPARγ ligand
coumarin
fluorescent ligand
screening
crystal structure
url https://www.mdpi.com/1422-0067/22/8/4034
work_keys_str_mv AT chisatoyoshikawa synthesisofacoumarinbasedppargfluorescenceprobeforcompetitivebindingassay
AT hiroakiishida synthesisofacoumarinbasedppargfluorescenceprobeforcompetitivebindingassay
AT namiohashi synthesisofacoumarinbasedppargfluorescenceprobeforcompetitivebindingassay
AT toshimasaitoh synthesisofacoumarinbasedppargfluorescenceprobeforcompetitivebindingassay