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Updated: Sep 14, 2025

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Published on: August 10, 2021
诺比林通过调节KEAP1/NRF2/ARE通路来抑制鼻癌
Yiyao Liang1, Minyan Wei1, Yunan Yao1
1Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Affiliated Traditional Chinese Medicine Hospital, Guangzhou Medical University, Guangzhou 511436, China.
诺比林 (NOB) 通过激活KEAP1,破坏NRF2/ARE通路并增加抗瘤免疫力,显示出对鼻癌 (NPC) 的化学预防潜力. 这种天然化合物可能使NPC细胞对化疗敏感.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 鼻癌 (NPC) 是一种普遍存在的恶性瘤,特别是在东亚/东南亚.
- 诺比 (NOB) 是一种类黄类物质,具有抗癌性质.
- 凯尔奇类ECH相关蛋白1 (KEAP1) /核因子红色素2相关因子2 (NRF2) /抗氧化剂反应元件 (ARE) 途径对细胞防御氧化应激至关重要.
研究的目的:
- 调查鼻癌 (NPC) 中诺比丁 (NOB) 的化学预防潜力和潜在机制.
- 探索NOB对细胞迁移,入侵和KEAP1/NRF2/ARE信号通路的影响.
- 评估KEAP1在NOB诱导的NPC细胞敏感性中的作用.
主要方法:
- 使用皮下瘤小鼠模型进行体外和体内评估.
- 评估NOB对NPC细胞 (CNE-2,5-8F) 迁移和入侵的影响.
- 分析KEAP1/NRF2/ARE通路,包括NRF2蛋白质体降解,核转位和基因表达.
- 基因沉默KEAP1以确定其在NOB影响中的作用.
主要成果:
- NOB在体外和体内表现出对NPC的显著化学预防作用.
- 剂量和时间依赖的NOB抑制了NPC细胞迁移和入侵.
- NOB激活KEAP1,导致NRF2降解和抑制核转位,减少ARE驱动的基因表达和抗氧化酶活性.
- 这导致了细胞内活性氧物种 (ROS) 的增加和增强抗瘤免疫力.
- KEAP1基因沉默降低了NPC细胞中NOB诱导的敏感性,证实了KEAP1的关键作用.
结论:
- 诺比 (NOB) 通过激活KEAP1和调节NRF2/ARE通路,对鼻癌 (NPC) 具有强大的化学预防活性.
- KEAP1是NOB抗瘤作用的关键标,导致ROS增加和增强抗瘤免疫力.
- 在NPC治疗中,NOB作为化学疗法的天然敏感剂具有前景.
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