一种口服可用的端粒G-四重复性接体诱导端粒危机和双DNA/RNA感应天生的免疫力用于癌症治疗
Jiong-Heng Cai1, Yao-Hui Shi1, Dan-Yan Yang1
1School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou 510006, China.
Journal of medicinal chemistry
|February 13, 2026
概括
CA11,一种新的G-四重复合联体,通过触发端粒危机和激活天生的免疫力,诱导癌细胞死亡. 这种口服生物可用药物通过增强免疫反应和抑制瘤生长,显示出对癌症治疗的希望.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
背景情况:
- 端粒危机是癌细胞增殖的关键障碍.
- cGAS-STING和TERRA-ZBP1通路涉及到分别感知DNA和RNA,提供治疗点.
- 准端粒是一个有前途的抗癌策略.
研究的目的:
- 为了发现和描述诱导癌症治疗的端粒危机的新型化合物.
- 为了研究CA11的作用机制,一个G-四重复合联体.
- 在临床前癌症模型中评估CA11的疗效和安全性.
主要方法:
- 基于G-quadruplex的选平台,用于识别CA11.
- 使用CA11进行端粒G4s的药理稳定.
- 测定端粒危机类表型和先天免疫通路激活 (DNA/RNA传感).
- 对癌细胞系中的抗增殖效应和瘤生长抑制 in vivo 的评估.
- 系统性耐受性评估.
主要成果:
- 鉴定了CA11,一种口服生物可用的quinazoline衍生物.
- CA11稳定了端粒G4s,诱导了类似端粒危机的表型.
- 观察到双重DNA/RNA感应天生的免疫通路的协调激活.
- 在体内,CA11表现出广泛的抗增殖作用和抑制瘤生长.
- CA11在系统上耐受性很好.
结论:
- CA11是第一类,口服激活的端粒G4配体.
- 在药理上,CA11会诱导端粒危机,激活先天免疫和自.
- CA11表现出强大的抗癌活性,是癌症治疗的有希望的候选人.
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