基于可光激活双产药纳米颗粒的协同光化疗效应,用于有效的癌症治疗.
Zhi-Yong Liu1,2, Guobo Chen1, Xiang Wang1
1School of Materials and Chemistry, Institute of Bismuth Science, Shanghai Collaborative Innovation Center of Energy Therapy for Tumors, University of Shanghai for Science and Technology, Shanghai, 200093, China.
Advanced healthcare materials
|June 13, 2023
概括
一个新的纳米平台 (PE@PTGA) 能够有效地触发癌细胞中的铁亡和亡. 这种创新方法显示了癌症治疗的前景,因为它克服了erastin.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 癌症研究 癌症研究
背景情况:
- 铁亡是一种新的细胞死亡途径,在瘤学中具有治疗潜力.
- 埃拉斯是一种有效的铁灭菌诱导剂,但由于水溶性差,它面临临临床限制.
- 开发有针对性的药物输送系统对于提高癌症治疗疗效至关重要.
研究的目的:
- 构建一个创新的纳米平台 (PE@PTGA) 以共同提供原PpIX和erastin.
- 为了研究ferroptosis和apoptosis诱导在肝细胞癌 (HCC) 的协同效应.
- 在HCC异种移植模型中评估PE@PTGA纳米平台的治疗疗效和生物相容性.
主要方法:
- 制造两性聚合物涂层纳米颗粒 (PE@PTGA) 封装PpIX和erastin.
- 在体外和体内对纳米粒子细胞吸收和HCC细胞中药物释放的评估.
- 评估光触发过热和反应性氧物种 (ROS) 的产生.
- 分析瘤组织中铁亡和亡途径的激活.
- 在小鼠模型中评估瘤生长抑制和全身毒性.
主要成果:
- PE@PTGA纳米颗粒成功地将PpIX和埃拉斯输入HCC细胞.
- 光刺激激活了PpIX用于高热和ROS生成,增强了埃拉斯诱导的铁亡.
- PE@PTGA通过激活铁和亡,证明了瘤生长的协同抑制.
- 该纳米平台在体内表现出低毒性和良好的生物相容性.
结论:
- PE@PTGA纳米平台通过诱导铁亡和亡,为癌症治疗提供了一个有前途的策略.
- 这种方法克服了erastin水溶性差的局限性,为潜在的临床应用提供了解决方案.
- PE@PTGA显示了优化瘤治疗的巨大潜力,并具有良好的安全性.
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