Nobiletin Protects Endothelial Cell Function via Upregulation of eNOS/ET-1 and Antioxidant Status-Related Genes under Nonstimulated and Inflammatory Conditions

Nobiletin, a natural polymethoxylated flavonoid compound, has been shown to exert a wide range of biological activities. However, there is limited evidence on the molecular mechanisms by which nobiletin modulates endothelial cell function. Our aim was to investigate the potential of nobiletin to enh...

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Main Authors: Lu Li, Biyun Zhang, Ludovica De Pieri, Yue Wu, Karen Birch, Christine Boesch
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Journal of Food Quality
Online Access:http://dx.doi.org/10.1155/2022/9119547
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author Lu Li
Biyun Zhang
Ludovica De Pieri
Yue Wu
Karen Birch
Christine Boesch
author_facet Lu Li
Biyun Zhang
Ludovica De Pieri
Yue Wu
Karen Birch
Christine Boesch
author_sort Lu Li
collection DOAJ
description Nobiletin, a natural polymethoxylated flavonoid compound, has been shown to exert a wide range of biological activities. However, there is limited evidence on the molecular mechanisms by which nobiletin modulates endothelial cell function. Our aim was to investigate the potential of nobiletin to enhance endothelial cell functionality under nonstimulated and inflammatory conditions. To this end, gene expression relevant to nitric oxide (NO) production, endothelin 1 (ET-1), and antioxidant status in human endothelial cells EA.hy926 was determined using real-time PCR. The fluorescence probe 4,5-diaminofluorescein (DAF-2) was used to measure NO production. The results demonstrated significant upregulation of eNOS and antioxidant genes as well as downregulation of ET-1 by nobiletin under nonstimulated and TNF-α-stimulated inflammatory conditions. These findings suggest a promising protective effect of nobiletin with relevance for cardiovascular health, likely through the NO/ET-1 dynamics and Nrf2 signaling pathway.
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institution Kabale University
issn 1745-4557
language English
publishDate 2022-01-01
publisher Wiley
record_format Article
series Journal of Food Quality
spelling doaj-art-29d609b8bd7f4d01b0efba6d113c050f2025-02-03T01:00:47ZengWileyJournal of Food Quality1745-45572022-01-01202210.1155/2022/9119547Nobiletin Protects Endothelial Cell Function via Upregulation of eNOS/ET-1 and Antioxidant Status-Related Genes under Nonstimulated and Inflammatory ConditionsLu Li0Biyun Zhang1Ludovica De Pieri2Yue Wu3Karen Birch4Christine Boesch5Beijing Advanced Innovation Center for Food Nutrition and Human HealthSchool of Food Science and NutritionSchool of Food Science and NutritionSchool of Food Science and NutritionSchool of Biomedical SciencesSchool of Food Science and NutritionNobiletin, a natural polymethoxylated flavonoid compound, has been shown to exert a wide range of biological activities. However, there is limited evidence on the molecular mechanisms by which nobiletin modulates endothelial cell function. Our aim was to investigate the potential of nobiletin to enhance endothelial cell functionality under nonstimulated and inflammatory conditions. To this end, gene expression relevant to nitric oxide (NO) production, endothelin 1 (ET-1), and antioxidant status in human endothelial cells EA.hy926 was determined using real-time PCR. The fluorescence probe 4,5-diaminofluorescein (DAF-2) was used to measure NO production. The results demonstrated significant upregulation of eNOS and antioxidant genes as well as downregulation of ET-1 by nobiletin under nonstimulated and TNF-α-stimulated inflammatory conditions. These findings suggest a promising protective effect of nobiletin with relevance for cardiovascular health, likely through the NO/ET-1 dynamics and Nrf2 signaling pathway.http://dx.doi.org/10.1155/2022/9119547
spellingShingle Lu Li
Biyun Zhang
Ludovica De Pieri
Yue Wu
Karen Birch
Christine Boesch
Nobiletin Protects Endothelial Cell Function via Upregulation of eNOS/ET-1 and Antioxidant Status-Related Genes under Nonstimulated and Inflammatory Conditions
Journal of Food Quality
title Nobiletin Protects Endothelial Cell Function via Upregulation of eNOS/ET-1 and Antioxidant Status-Related Genes under Nonstimulated and Inflammatory Conditions
title_full Nobiletin Protects Endothelial Cell Function via Upregulation of eNOS/ET-1 and Antioxidant Status-Related Genes under Nonstimulated and Inflammatory Conditions
title_fullStr Nobiletin Protects Endothelial Cell Function via Upregulation of eNOS/ET-1 and Antioxidant Status-Related Genes under Nonstimulated and Inflammatory Conditions
title_full_unstemmed Nobiletin Protects Endothelial Cell Function via Upregulation of eNOS/ET-1 and Antioxidant Status-Related Genes under Nonstimulated and Inflammatory Conditions
title_short Nobiletin Protects Endothelial Cell Function via Upregulation of eNOS/ET-1 and Antioxidant Status-Related Genes under Nonstimulated and Inflammatory Conditions
title_sort nobiletin protects endothelial cell function via upregulation of enos et 1 and antioxidant status related genes under nonstimulated and inflammatory conditions
url http://dx.doi.org/10.1155/2022/9119547
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