非氧化和氧化亚麻种子轨道不同地诱导HepG2细胞亡:细胞吸收和膜死亡受体DR4的参与
Changmei Peng1, Jing Li1, Aixiu Zhao1
1State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, PR China.
Journal of the science of food and agriculture
|March 4, 2024
概括
与氧化形式相比,非氧化亚麻轨道体表现出优越的抗癌作用. 这是由于细胞吸收的增强和DR4死亡受体通路的更好的激活,导致亡的增加.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 亚麻的轨道具有抗癌性质.
- 氧化含有 metionin 的亚麻种子轨道体 (例如 [1-9-NαC]-linusorb B2),产生较不有效的硫氧化物和硫形式.
- 氧化亚麻种子轨道体的功效降低仍然无法解释.
研究的目的:
- 为了调查氧化与非氧化亚麻轨道的不同抗癌功效背后的原因.
- 阐明了亚麻种子轨道体的抗癌活性背后的分子机制.
主要方法:
- 对非氧化 ([1-9-NαC]-linusorb B3 (CLA), [1-9-NαC]-linusorb B2 (CLB)) 和氧化 (CLC,CLK) 亚麻轨道的比较分析.
- 评估亲细胞亡蛋白质水平 (Bax/Bcl-2,CytoC,caspase-3,caspase-8). 这些蛋白质的含量是什么?
- 使用光火和分子对接,测量细胞轨道体吸收和DR4蛋白相互作用.
主要成果:
- 氧化和非氧化亚麻种子轨道都以剂量依赖的方式调高了亲细胞亡蛋白质.
- 非氧化亚麻种子轨道体的抗癌效果明显高于氧化形式.
- 对于非氧化轨道体,观察到更高的细胞吸收和对DR4死亡受体的增强结合.
- 激活DR4对于非氧化轨道体诱导caspase-3表达的能力至关重要.
结论:
- 非氧化亚麻种子轨道体比它们的氧化对应物更强有力的抗癌剂.
- 增强的细胞吸收和DR4介导死亡受体通路的优异激活解释了非氧化亚麻轨道的效率增加.
- 这些发现凸显了亚麻轨道体的氧化状态对其抗癌活性的重要性.
关键词:
DR4 DR4 DR4 DR4 DR4 DR4 DR4 DR4 DR4 DR4 DR4 DR4 DR4灭症 (apoptosis) 是一种死亡的过程.细胞吸收细胞吸收.亚麻种子轨道中的轨道.氧化过程中的氧化.更多相关视频
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