基于比斯穆的纳米平台用于协同热遗传CRISPR和光热癌症治疗
Zhi Chen1,2,3, Huiling Lin1, Changyu Yoon2
1State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Physics and Optoelectronics Engineering, Shenzhen University, Shenzhen 518060, China.
这项研究介绍了一个智能纳米平台,它使用热量和基因编辑来克服瘤对光热疗法 (PTT) 的抗性. 这种方法增强了癌细胞死亡,并显示了精确癌症治疗的前景.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 癌症治疗 癌症治疗
背景情况:
- 光热疗法 (PTT) 是由瘤热耐受性在安全温度范围内受到限制的.
- 开发克服这种抵抗的策略对于有效的PTT至关重要.
- 基因调节提供了一个潜在的途径来调节瘤对热量的反应.
研究的目的:
- 开发一个结合光热转换和基因调节的闭环纳米平台.
- 为了克服瘤的热耐受性,使用热封闭的CRISPR/Cas9系统.
- 为了提高光热疗法在癌症治疗中的疗效.
主要方法:
- 为近红外光热转换而设计的六角 bismuthene 纳米盘.
- 开发了一种针对CDK7基因的热敏CRISPR/Cas9开关.
- 研究了CDK7-HSP70应力轴的破坏.
- 在三阴性乳腺癌模型中评估了纳米平台.
主要成果:
- 轻度高温 (∼45°C) 激活了CRISPR开关,降低了热阻.
- 破坏CDK7-HSP70轴重新编程瘤适应.
- 在临床前模型中达到>93%的瘤抑制,毒性最小.
- 证明了放大光热功效和促进免疫细胞死亡.
结论:
- 建立了一个可遗传编程的,热遗传纳米材料范式.
- 链接材料设计与基因逻辑用于先进的癌症治疗.
- 该纳米平台显示了下一代精确癌症治疗的潜力.
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