DNA功能化黄金的抗癌作用纳米粒子介导光热疗法
Sun Young Lee1, Eun Sook Lee1, Jinseong Kim2
1Nanobio Measurement Group, Division of Biomedical Metrology, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea.
Biochemical and biophysical research communications
|September 13, 2025
概括
将血管内皮生长因子 (VEGF) 抑制与光热疗法 (PTT) 结合起来,在癌症治疗方面表现有前途. 定量蛋白质组学揭示了这种组合疗法激活了内分泌网膜应激,增强了瘤细胞死亡.
科学领域:
- 在瘤学瘤学.
- 生物化学 生物化学
- 纳米技术纳米技术
背景情况:
- 针对血管内皮生长因子 (VEGF) 的治疗对于抑制瘤血管生成至关重要,但面临的挑战包括耐药性和不完全的疗效.
- 光热疗法 (PTT),利用纳米颗粒,如金纳米颗粒,提供了一个补充的方法,通过热生成直接向瘤细胞.
- 在VEGF抑制和PTT组合的基础上的协同分子机制在很大程度上仍未被探索.
研究的目的:
- 通过使用定量蛋白质组学,研究在MCF-7乳腺癌细胞中通过将VEGF向的阿巴马与PTT结合而引起的分子变化.
- 阐明VEGF抑制和PTT在乳腺癌治疗中的协同作用的潜在机制.
- 证明定量蛋白质组学在理解复杂的治疗效果和识别潜在生物标志物的有用性.
主要方法:
- 量化蛋白质组学被用来分析MCF-7细胞中的蛋白质表达变化,这些细胞被用VEGF向性受体和PTT的组合治疗.
- 进行了基于质谱的蛋白质组分析,以确定差异表达的蛋白质.
- 使用生物信息分析来解释由联合治疗影响的功能途径.
主要成果:
- 联合VEGF抑制和PTT治疗显著改变了参与细胞循环调节,RNA剪接和应激反应的蛋白质.
- 关键发现包括p53通路的激活和内质网膜 (ER) 应激.
- 该研究观察到抑制细胞循环进展,激活ER压力,抑制压力颗粒分解,导致乳腺癌细胞死亡增加.
结论:
- 针对VEGF的阿普坦和PTT的组合诱导了显著的分子变化,包括ER应激激活和细胞循环抑制,导致乳腺癌细胞死亡的增强.
- 定量蛋白质组学是阐明组合癌症疗法的复杂分子机制的宝贵工具.
- 这些发现为优化组合疗法和确定癌症治疗治疗疗效的生物标志物提供了洞察力.
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