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Protective effects of canolol against hydrogen peroxide-induced oxidative stress in AGS cells

机译:卡诺洛尔对过氧化氢诱导的AGS细胞氧化应激的保护作用

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Oxidative stress, as mediated by ROS, plays a critical role during the occurrence and development of chronic diseases. Canolol is a phenolic compound recently isolated from crude canola oil with powerful antioxidative properties. In this paper, the effects of canolol on hydrogen peroxide (H2O2)-induced oxidative stress in AGS cells were investigated. Cell viability experiments showed negligible cytotoxicity of canolol to AGS cells within a dose of 100 μM. Additionally, it was found that canolol could effectively prevent the oxidative injury caused by H2O2. The pretreatment of AGS cells by canolol also resulted in a reduction in ROS and MDA levels, and LDH release. The survival of cells and the activities of superoxide dismutase (SOD), glutathione peroxidase (GSH) and catalase (CAT) were significantly increased with the pre-incubation of AGS cells with canolol before H2O2 exposure. Consequently, apoptosis and loss of mitochondrial membrane potential of the AGS cells were alleviated, and H2O2-induced caspase-3 activation was inhibited. Therefore, it was concluded that canolol effectively protected AGS cells against H2O2-induced oxidative stress and its antioxidative effect was significant.
机译:由ROS介导的氧化应激在慢性疾病的发生和发展中起关键作用。卡诺洛尔是最近从粗制低芥酸菜籽油中分离出来的一种酚类化合物,具有强大的抗氧化性能。本文研究了卡诺洛尔对过氧化氢(H 2 O 2 )诱导的氧化应激的影响。研究了AGS细胞。细胞活力实验表明,在100μM剂量下,菜籽酚对AGS细胞的细胞毒性微不足道。此外,发现菜籽酚可以有效预防H 2 O 2 引起的氧化损伤。卡诺洛尔对AGS细胞的预处理还导致ROS和MDA水平降低以及LDH释放。在H 2 之前将AGS细胞与卡诺洛尔一起预孵育后,细胞的存活率以及超氧化物歧化酶(SOD),谷胱甘肽过氧化物酶(GSH)和过氧化氢酶(CAT)的活性显着增加。 O 2 曝光。因此,减轻了AGS细胞的凋亡和线粒体膜电位的损失,并且H 2 O 2 -诱导的caspase-3激活被抑制。因此,得出的结论是卡诺洛尔可有效保护AGS细胞免受H 2 O 2 诱导的氧化应激及其氧化应激。抗氧化作用显着。

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