响应pH的ZIF-8@quercetin纳米颗粒诱导了针对性胃癌治疗的热致死
Qian Xu1,2,3,4, Xin Jin1,5,2,3,4, Siyi Song6
1Department of General Surgery, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong Province, 250014, China.
Materials today. Bio
|February 2, 2026
概括
这项研究开发了ZIF-8纳米颗粒,用于为胃癌治疗提供奎尔丁. 新的ZIF-8@Que配方增强了药物递送,触发了细胞死亡,并显示出有望的抗癌效果,降低了毒性.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 在瘤学瘤学.
背景情况:
- 胃癌 (GC) 是一个重大的全球健康挑战,治疗选择有限.
- Quercetin (Que),一种天然的黄类化合物,具有抗癌性质,但面临着溶解性和生物可用性问题,阻碍了其临床使用.
- 有效的药物输送系统对于克服氨酸在癌症治疗中的局限性至关重要.
研究的目的:
- 开发基于纳米粒子的素输送系统,以提高其在胃癌治疗中的有效性.
- 调查新型纳米粒子配方在诱导癌细胞死亡中的作用机制.
- 在临床前模型中评估瑞载纳米颗粒的治疗潜力和安全性.
主要方法:
- 凝性伊米达酸框架-8 (ZIF-8) 纳米颗粒被合成,以封装奎尔丁 (ZIF-8@Que).
- 该ZIF-8@Que配方的特点是负载效率和pH响应释放.
- 在体外研究中评估了细胞吸收,反应性氧物种 (ROS) 生成,热致死诱导和抗癌作用 (扩散,迁移,入侵).
- 在体内研究评估了瘤积累,抗瘤疗效和全身毒性.
主要成果:
- ZIF-8@Que纳米颗粒在酸性瘤微环境中显示出高素负载和pH响应释放.
- GC细胞的内化导致了溶酶体药物释放,增强了ROS的产生,线粒体功能障碍和热细胞死亡.
- 在体外,ZIF-8@Que显著抑制了GC细胞的增殖,迁移和入侵.
- 在体内研究显示,相比于自由色丁,优越的瘤积累,强大的瘤抑制和最小的全身毒性.
结论:
- ZIF-8@Que纳米颗粒代表了增强奎尔素治疗胃癌疗效的有希望的策略.
- 该配方有效地克服了奎尔塞丁的药理动力学限制,并通过ROS介导的热死诱导癌细胞死亡.
- 这种纳米粒子系统为推进胃癌治疗提供了安全有效的方法.
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