Piperlongumine 是孤儿核受体4A1 (NR4A1) 的一个配体
Lei Zhang1, Greg Martin1, Kumaravel Mohankumar1
1Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX, United States.
Frontiers in pharmacology
|October 9, 2023
概括
作为一种抗癌药物,Piperlongumine通过诱导活性氧物种 (ROS) 和与NR4A1受体相互作用来抑制结肠癌细胞的生长. 这种机制为结肠癌治疗提供了一个新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- Piperlongumine 和衍生品是新兴的抗癌药物.
- 它们的机制涉及诱导活性氧物种 (ROS).
- 抗癌活性类似于针对孤儿核受体4A1 (NR4A1) 的双醇化合物.
研究的目的:
- 为了研究 piperlongumine 对结肠癌细胞的抗癌作用.
- 阐明其作用机制,重点关注NR4A1相互作用和ROS诱导.
- 为了确定 piperlongumine 是否作为NR4A1逆激动剂.
主要方法:
- 在RKO,SW480和HCT116结肠癌线的细胞培养中.
- 细胞生长,迁移,入侵和细胞亡的评估.
- 对IDH1和TXNDC5.5的基因表达分析.
- 对于斯特林2,-AMPK和mTOR信号的西部涂抹.
- 直接结合试验和对NR4A1相互作用的交换活化研究.
主要成果:
- 皮珀龙胺抑制了结肠癌细胞的生长,迁移和入侵,同时诱导了亡.
- 它降低了IDH1和TXNDC5的调节,导致ROS诱导.
- ROS激活了塞斯特林2,导致AMPK酸化和mTOR抑制.
- 皮珀龙胺直接结合NR4A1,抑制了其转换活化,并破坏了G9a基因促进体上的NR4A1/Sp1复合体.
结论:
- 皮珀龙胺作为NR4A1逆agonist的功能,抑制结肠癌的进展.
- 它的机制涉及ROS诱导, sestrin2激活和AMPK/mTOR通路的调制.
- Piperlongumine 是结肠癌的有希望的治疗候选物,其向NR4A1调节的途径.
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