Ameliorative Effects of Raisin Polyphenol Extract on Oxidative Stress and Aging In Vitro and In Vivo via Regulation of Sirt1–Nrf2 Signaling Pathway

Raisins are an important source of polyphenolic compounds in plant foods, and polyphenols are associated with antioxidant and anti-aging activity. In this work, 628 polyphenols in raisin extracts were characterized using UPLC-MS/MS, mainly including tricetin 3′-glucuronide, diisobutyl phthalate, but...

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Main Authors: Wenjing Gao, Caiyun Zhao, Xin Shang, Bin Li, Jintian Guo, Jingteng Wang, Bin Wu, Yinghua Fu
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Foods
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Online Access:https://www.mdpi.com/2304-8158/14/1/71
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author Wenjing Gao
Caiyun Zhao
Xin Shang
Bin Li
Jintian Guo
Jingteng Wang
Bin Wu
Yinghua Fu
author_facet Wenjing Gao
Caiyun Zhao
Xin Shang
Bin Li
Jintian Guo
Jingteng Wang
Bin Wu
Yinghua Fu
author_sort Wenjing Gao
collection DOAJ
description Raisins are an important source of polyphenolic compounds in plant foods, and polyphenols are associated with antioxidant and anti-aging activity. In this work, 628 polyphenols in raisin extracts were characterized using UPLC-MS/MS, mainly including tricetin 3′-glucuronide, diisobutyl phthalate, butyl isobutyl phthalate, isoquercitrin and 6-hydroxykaempferol-7-O-glucoside. The oxidative stress in H<sub>2</sub>O<sub>2</sub>-induced HepG2 cells and D-gal-induced aging mice was alleviated by raisin polyphenols (RPs) via increases in the cellular levels of superoxide dismutase (SOD), catalase (CAT) and glutathione (GSH), along with decreases in malonaldehyde (MDA), reactive oxygen species (ROS) and advanced glycosylation end-products (AGEs) levels. In addition, it was observed that RPs enhanced Sirt1 and Sirt3 expression, initiating the Keap1-Nrf2 signaling pathway, by upregulating the levels of nuclear Nrf2, facilitating the expressions of the antioxidant proteins NQO1 and HO-1, and downregulating Keap1 and cytoplasmic Nrf2 protein levels in H<sub>2</sub>O<sub>2</sub>-induced HepG2 cells and D-gal-induced aging mice. In summary, RP exerted antioxidant and anti-aging effects via regulating the Sirt1–Nrf2 signaling pathway in vitro and in vivo.
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spelling doaj-art-7ce3b87b6a2747558978fd1e6d3e3f082025-01-10T13:17:42ZengMDPI AGFoods2304-81582024-12-011417110.3390/foods14010071Ameliorative Effects of Raisin Polyphenol Extract on Oxidative Stress and Aging In Vitro and In Vivo via Regulation of Sirt1–Nrf2 Signaling PathwayWenjing Gao0Caiyun Zhao1Xin Shang2Bin Li3Jintian Guo4Jingteng Wang5Bin Wu6Yinghua Fu7College of Life Science and Technology, Xinjiang University, Urumqi 830017, ChinaCollege of Life Science and Technology, Xinjiang University, Urumqi 830017, ChinaCollege of Life Science and Technology, Xinjiang University, Urumqi 830017, ChinaCollege of Life Science and Technology, Xinjiang University, Urumqi 830017, ChinaCollege of Life Science and Technology, Xinjiang University, Urumqi 830017, ChinaCollege of Life Science and Technology, Xinjiang University, Urumqi 830017, ChinaInstitute of Agro-Products Storage and Processing, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, ChinaCollege of Life Science and Technology, Xinjiang University, Urumqi 830017, ChinaRaisins are an important source of polyphenolic compounds in plant foods, and polyphenols are associated with antioxidant and anti-aging activity. In this work, 628 polyphenols in raisin extracts were characterized using UPLC-MS/MS, mainly including tricetin 3′-glucuronide, diisobutyl phthalate, butyl isobutyl phthalate, isoquercitrin and 6-hydroxykaempferol-7-O-glucoside. The oxidative stress in H<sub>2</sub>O<sub>2</sub>-induced HepG2 cells and D-gal-induced aging mice was alleviated by raisin polyphenols (RPs) via increases in the cellular levels of superoxide dismutase (SOD), catalase (CAT) and glutathione (GSH), along with decreases in malonaldehyde (MDA), reactive oxygen species (ROS) and advanced glycosylation end-products (AGEs) levels. In addition, it was observed that RPs enhanced Sirt1 and Sirt3 expression, initiating the Keap1-Nrf2 signaling pathway, by upregulating the levels of nuclear Nrf2, facilitating the expressions of the antioxidant proteins NQO1 and HO-1, and downregulating Keap1 and cytoplasmic Nrf2 protein levels in H<sub>2</sub>O<sub>2</sub>-induced HepG2 cells and D-gal-induced aging mice. In summary, RP exerted antioxidant and anti-aging effects via regulating the Sirt1–Nrf2 signaling pathway in vitro and in vivo.https://www.mdpi.com/2304-8158/14/1/71raisin polyphenolsoxidative stressoxidatively damaged HepG2 cellsaging miceSirt1–Nrf2 signaling pathway
spellingShingle Wenjing Gao
Caiyun Zhao
Xin Shang
Bin Li
Jintian Guo
Jingteng Wang
Bin Wu
Yinghua Fu
Ameliorative Effects of Raisin Polyphenol Extract on Oxidative Stress and Aging In Vitro and In Vivo via Regulation of Sirt1–Nrf2 Signaling Pathway
Foods
raisin polyphenols
oxidative stress
oxidatively damaged HepG2 cells
aging mice
Sirt1–Nrf2 signaling pathway
title Ameliorative Effects of Raisin Polyphenol Extract on Oxidative Stress and Aging In Vitro and In Vivo via Regulation of Sirt1–Nrf2 Signaling Pathway
title_full Ameliorative Effects of Raisin Polyphenol Extract on Oxidative Stress and Aging In Vitro and In Vivo via Regulation of Sirt1–Nrf2 Signaling Pathway
title_fullStr Ameliorative Effects of Raisin Polyphenol Extract on Oxidative Stress and Aging In Vitro and In Vivo via Regulation of Sirt1–Nrf2 Signaling Pathway
title_full_unstemmed Ameliorative Effects of Raisin Polyphenol Extract on Oxidative Stress and Aging In Vitro and In Vivo via Regulation of Sirt1–Nrf2 Signaling Pathway
title_short Ameliorative Effects of Raisin Polyphenol Extract on Oxidative Stress and Aging In Vitro and In Vivo via Regulation of Sirt1–Nrf2 Signaling Pathway
title_sort ameliorative effects of raisin polyphenol extract on oxidative stress and aging in vitro and in vivo via regulation of sirt1 nrf2 signaling pathway
topic raisin polyphenols
oxidative stress
oxidatively damaged HepG2 cells
aging mice
Sirt1–Nrf2 signaling pathway
url https://www.mdpi.com/2304-8158/14/1/71
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