红毛藻多糖对H2O2诱导的Caco-2细胞氧化损伤的保护作用

doi:10.7506/spkx1002-6630-20200901-004

食品科学 ›› 2021, Vol. 42 ›› Issue (17): 113-120.doi: 10.7506/spkx1002-6630-20200901-004

红毛藻多糖对H2O2诱导的Caco-2细胞氧化损伤的保护作用

何萍萍，郑雅君，郑明静，姜泽东，杜希萍，朱艳冰，倪辉，李清彪

（1.集美大学海洋食品与生物工程学院，福建厦门 361021；2.福建省食品微生物与酶工程重点实验室，福建厦门 3610213.厦门南方海洋研究中心，经济海藻资源化利用与深加工重点实验室，福建厦门 361021；4.厦门市食品生物工程技术研究中心，福建厦门 361021）

发布日期:2021-09-29
基金资助:
国家自然科学基金面上项目（31972081）；福建省自然科学基金面上项目（2019J01697）；福建省自然科学基金重点项目（2018N0019）；福建省科技经济融合服务平台项目（B21022）

Protective Effect of Bangia fusco-purpurea Polysaccharide on H2O2-Induced Oxidative Damage in Caco-2 Cells

HE Pingping, ZHENG Yajun, ZHENG Mingjing, JIANG Zedong, DU Xiping, ZHU Yanbing, NI Hui, LI Qingbiao

(1. College of Food and Biological Engineering, Jimei University, Xiamen 361021, China; 2. Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen 361021, China; 3. Key Laboratory of Systemic Utilization and In-depth Processing of Economic Seaweed, Xiamen Southern Oceanographic Center, Xiamen 361021, China; 4. Research Center of Food Biotechnology of Xiamen City, Xiamen 361021, China)

Published:2021-09-29

摘要/Abstract

摘要： 目的：研究红毛藻多糖（Bangia fusco-purpurea polysaccharide，BFP）对H2O2诱导的人结肠腺癌（Caco-2）细胞氧化应激损伤的保护作用。方法：构建过氧化氢（H2O2）诱导的Caco-2细胞氧化损伤模型，通过形态学观察和测定细胞裂解液中的抗氧化物水平及相关酶活力，评价BFP对Caco-2细胞氧化损伤的保护作用。结果：BFP可明显提高H2O2诱导氧化损伤的Caco-2细胞活力，降低细胞内活性氧生成水平，提高细胞内超氧化物歧化酶和过氧化氢酶活力以及还原型谷胱甘肽水平，减少丙二醛生成，并通过抑制Caspase-3和Caspase-9活性来改善氧化应激损伤引起的细胞凋亡。结论：BFP对H2O2诱导氧化应激损伤的Caco-2细胞具有保护作用，可通过增强细胞内源性抗氧化酶活力、提高非酶类抗氧化物水平和抑制细胞凋亡明显缓解H2O2诱导的Caco-2细胞氧化应激损伤。

关键词: 红毛藻多糖；人结肠腺癌细胞；氧化应激损伤；细胞凋亡；保护作用

Abstract: Objective: The protective effect of Bangia fusco-purpurea polysaccharide (BFP) on H2O2-induced oxidative damage in human clone colon cancer cells (Caco-2 cells) was investigated in this study. Methods: The morphology of the oxidatively damaged cells was observed and antioxidant compound contents and antioxidant enzyme activities in the cell lysates were measured. Results: BFP significantly increased the viability of Caco-2 cells damaged by H2O2 in a concentration-dependent manner, reduced the generation of intracellular reactive oxygen species (ROS), increased the activity of superoxide dismutase (SOD) and catalase (CAT) and glutathione level, inhibited the production of malondialdehyde (MDA), and repressed caspase-3 and caspase-9 activity to mitigate cell apoptosis induced by oxidative stress. Conclusion: BFP has a protective effect on H2O2-induced oxidative damage in Caco-2 cells in vitro. It can ameliorate H2O2-induced oxidative stress damage in Caco-2 cells by enhancing the activities of endogenous antioxidant enzymes, increasing the levels of non-enzymatic antioxidants, and inhibiting cell apoptosis.

Key words: Bangia fusco-purpurea polysaccharide; Caco-2 cells; oxidative stress damage; cell apoptosis; protective effects

中图分类号:

TS201.4

何萍萍，郑雅君，郑明静，姜泽东，杜希萍，朱艳冰，倪辉，李清彪. 红毛藻多糖对H2O2诱导的Caco-2细胞氧化损伤的保护作用[J]. 食品科学, 2021, 42(17): 113-120.

HE Pingping, ZHENG Yajun, ZHENG Mingjing, JIANG Zedong, DU Xiping, ZHU Yanbing, NI Hui, LI Qingbiao. Protective Effect of Bangia fusco-purpurea Polysaccharide on H2O2-Induced Oxidative Damage in Caco-2 Cells[J]. FOOD SCIENCE, 2021, 42(17): 113-120.

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红毛藻多糖对H2O2诱导的Caco-2细胞氧化损伤的保护作用

Protective Effect of Bangia fusco-purpurea Polysaccharide on H2O2-Induced Oxidative Damage in Caco-2 Cells

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