Tangeretin Inhibition of High-Glucose-Induced IL-1β, IL-6, TGF-β1, and VEGF Expression in Human RPE Cells

Tangeretin, a natural compound extracted from citrus plants, has been reported to have antiproliferative, antidiabetic, anti-invasive, and antioxidant properties. However, the role of tangeretin in diabetic retinopathy (DR) is unknown. In the present study, we investigated whether tangeretin had any...

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Main Authors: Dong Qin, Yan-rong Jiang
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Journal of Diabetes Research
Online Access:http://dx.doi.org/10.1155/2020/9490642
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author Dong Qin
Yan-rong Jiang
author_facet Dong Qin
Yan-rong Jiang
author_sort Dong Qin
collection DOAJ
description Tangeretin, a natural compound extracted from citrus plants, has been reported to have antiproliferative, antidiabetic, anti-invasive, and antioxidant properties. However, the role of tangeretin in diabetic retinopathy (DR) is unknown. In the present study, we investigated whether tangeretin had any effect on the expression of interleukin 1 beta (IL-1β), interleukin 6 (IL-6), transforming growth factor beta 1 (TGF-β1), and vascular endothelial growth factor (VEGF) in human retinal pigment epithelial (RPE) cells under high-glucose (HG) conditions. Our results illustrated that HG levels induced IL-1β, IL-6, TGF-β1, and VEGF expression and that tangeretin significantly reduced HG-induced IL-1β, IL-6, TGF-β1, and VEGF expression in human RPE cells. Moreover, tangeretin efficiently inhibited the activation of the protein kinase B (Akt) signalling pathway in HG-stimulated RPE cells. Therefore, tangeretin may serve a role in the treatment of DR.
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spelling doaj-art-29409fe6ed3243b58d5b651e8953bb3d2025-08-20T02:03:52ZengWileyJournal of Diabetes Research2314-67452314-67532020-01-01202010.1155/2020/94906429490642Tangeretin Inhibition of High-Glucose-Induced IL-1β, IL-6, TGF-β1, and VEGF Expression in Human RPE CellsDong Qin0Yan-rong Jiang1Henan Eye Institute, Henan Provincial Eye Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, ChinaDepartment of Ophthalmology, People’s Hospital, Peking University, Beijing, ChinaTangeretin, a natural compound extracted from citrus plants, has been reported to have antiproliferative, antidiabetic, anti-invasive, and antioxidant properties. However, the role of tangeretin in diabetic retinopathy (DR) is unknown. In the present study, we investigated whether tangeretin had any effect on the expression of interleukin 1 beta (IL-1β), interleukin 6 (IL-6), transforming growth factor beta 1 (TGF-β1), and vascular endothelial growth factor (VEGF) in human retinal pigment epithelial (RPE) cells under high-glucose (HG) conditions. Our results illustrated that HG levels induced IL-1β, IL-6, TGF-β1, and VEGF expression and that tangeretin significantly reduced HG-induced IL-1β, IL-6, TGF-β1, and VEGF expression in human RPE cells. Moreover, tangeretin efficiently inhibited the activation of the protein kinase B (Akt) signalling pathway in HG-stimulated RPE cells. Therefore, tangeretin may serve a role in the treatment of DR.http://dx.doi.org/10.1155/2020/9490642
spellingShingle Dong Qin
Yan-rong Jiang
Tangeretin Inhibition of High-Glucose-Induced IL-1β, IL-6, TGF-β1, and VEGF Expression in Human RPE Cells
Journal of Diabetes Research
title Tangeretin Inhibition of High-Glucose-Induced IL-1β, IL-6, TGF-β1, and VEGF Expression in Human RPE Cells
title_full Tangeretin Inhibition of High-Glucose-Induced IL-1β, IL-6, TGF-β1, and VEGF Expression in Human RPE Cells
title_fullStr Tangeretin Inhibition of High-Glucose-Induced IL-1β, IL-6, TGF-β1, and VEGF Expression in Human RPE Cells
title_full_unstemmed Tangeretin Inhibition of High-Glucose-Induced IL-1β, IL-6, TGF-β1, and VEGF Expression in Human RPE Cells
title_short Tangeretin Inhibition of High-Glucose-Induced IL-1β, IL-6, TGF-β1, and VEGF Expression in Human RPE Cells
title_sort tangeretin inhibition of high glucose induced il 1β il 6 tgf β1 and vegf expression in human rpe cells
url http://dx.doi.org/10.1155/2020/9490642
work_keys_str_mv AT dongqin tangeretininhibitionofhighglucoseinducedil1bil6tgfb1andvegfexpressioninhumanrpecells
AT yanrongjiang tangeretininhibitionofhighglucoseinducedil1bil6tgfb1andvegfexpressioninhumanrpecells