Oligopeptide of RDPEER from watermelon seeds prevents heat stress-induced liver injury by suppressing oxidative stress and inflammation responses

In this paper, the effect and potential mechanism of supplementary RDPEER (P1, 801 Da), an antioxidant oligopeptide derived from watermelon seeds, on heat stress-induced rat liver injury and HepG2 cell damage were studied. It was observed that supplementation with RDPEER attenuated heat stress-induc...

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Main Authors: Simeng Chen, Jie Zhou, Chidimma Juliet Igbokwe, Yuqing Duan, Meihong Cai, Yuanqing He, Haihui Zhang
Format: Article
Language:English
Published: Elsevier 2023-06-01
Series:Journal of Functional Foods
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1756464623001639
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author Simeng Chen
Jie Zhou
Chidimma Juliet Igbokwe
Yuqing Duan
Meihong Cai
Yuanqing He
Haihui Zhang
author_facet Simeng Chen
Jie Zhou
Chidimma Juliet Igbokwe
Yuqing Duan
Meihong Cai
Yuanqing He
Haihui Zhang
author_sort Simeng Chen
collection DOAJ
description In this paper, the effect and potential mechanism of supplementary RDPEER (P1, 801 Da), an antioxidant oligopeptide derived from watermelon seeds, on heat stress-induced rat liver injury and HepG2 cell damage were studied. It was observed that supplementation with RDPEER attenuated heat stress-induced hepatocyte injury by increasing HepG2 cell viability, reducing ROS overproduction, improving antioxidant enzyme activity (T-SOD, GSH-Px and CAT) and decreasing MDA content. RDPEER also inhibited HPA axis hyperactivity, serum transaminase activity (AST, ALT) and inflammatory factor levels (INF-γ, IL-6 and TNF-α), activated the endogenous antioxidant pathway (Nrf2/Keap-1), and reduced inflammatory factor transcription (NFκB) and heat shock protein expression (HSP27/72/90). In conclusion, supplementation with RDPEER could enhance antioxidant capacity in vivo and in vitro, reduce the inflammatory and heat shock response to alleviate liver damage caused by heat stress. These findings may provide new insights to alleviate heat stress through nutritional interventions.
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spelling doaj.art-bfd0147d754249cd8b79fed5e0978d132023-05-26T04:21:12ZengElsevierJournal of Functional Foods1756-46462023-06-01105105563Oligopeptide of RDPEER from watermelon seeds prevents heat stress-induced liver injury by suppressing oxidative stress and inflammation responsesSimeng Chen0Jie Zhou1Chidimma Juliet Igbokwe2Yuqing Duan3Meihong Cai4Yuanqing He5Haihui Zhang6School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; Department of Food Science and Technology, University of Nigeria Nsukka, Enugu State, NigeriaSchool of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China; Nourse Nutrition Science Jiangsu Institute, Zhenjiang 212009, China; Corresponding authors at: School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; Corresponding authors at: School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.In this paper, the effect and potential mechanism of supplementary RDPEER (P1, 801 Da), an antioxidant oligopeptide derived from watermelon seeds, on heat stress-induced rat liver injury and HepG2 cell damage were studied. It was observed that supplementation with RDPEER attenuated heat stress-induced hepatocyte injury by increasing HepG2 cell viability, reducing ROS overproduction, improving antioxidant enzyme activity (T-SOD, GSH-Px and CAT) and decreasing MDA content. RDPEER also inhibited HPA axis hyperactivity, serum transaminase activity (AST, ALT) and inflammatory factor levels (INF-γ, IL-6 and TNF-α), activated the endogenous antioxidant pathway (Nrf2/Keap-1), and reduced inflammatory factor transcription (NFκB) and heat shock protein expression (HSP27/72/90). In conclusion, supplementation with RDPEER could enhance antioxidant capacity in vivo and in vitro, reduce the inflammatory and heat shock response to alleviate liver damage caused by heat stress. These findings may provide new insights to alleviate heat stress through nutritional interventions.http://www.sciencedirect.com/science/article/pii/S1756464623001639Heat stressRDPEERLiver damageOxidative stressInflammationHeat shock proteins
spellingShingle Simeng Chen
Jie Zhou
Chidimma Juliet Igbokwe
Yuqing Duan
Meihong Cai
Yuanqing He
Haihui Zhang
Oligopeptide of RDPEER from watermelon seeds prevents heat stress-induced liver injury by suppressing oxidative stress and inflammation responses
Journal of Functional Foods
Heat stress
RDPEER
Liver damage
Oxidative stress
Inflammation
Heat shock proteins
title Oligopeptide of RDPEER from watermelon seeds prevents heat stress-induced liver injury by suppressing oxidative stress and inflammation responses
title_full Oligopeptide of RDPEER from watermelon seeds prevents heat stress-induced liver injury by suppressing oxidative stress and inflammation responses
title_fullStr Oligopeptide of RDPEER from watermelon seeds prevents heat stress-induced liver injury by suppressing oxidative stress and inflammation responses
title_full_unstemmed Oligopeptide of RDPEER from watermelon seeds prevents heat stress-induced liver injury by suppressing oxidative stress and inflammation responses
title_short Oligopeptide of RDPEER from watermelon seeds prevents heat stress-induced liver injury by suppressing oxidative stress and inflammation responses
title_sort oligopeptide of rdpeer from watermelon seeds prevents heat stress induced liver injury by suppressing oxidative stress and inflammation responses
topic Heat stress
RDPEER
Liver damage
Oxidative stress
Inflammation
Heat shock proteins
url http://www.sciencedirect.com/science/article/pii/S1756464623001639
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