用于向药物输送的生物化治疗性两性聚氨
Sagar Bag1, Mandip Pratham Gadpayle2, Desoshree Ghosh1
1Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Nadia, Mohanpur, West Bengal 741246, India.
Biomacromolecules
|June 5, 2024
概括
研究人员开发了可生物降解的纳米载体,使用刺激响应的聚合物进行药物输送. 这些新型聚氨对癌细胞具有选择性毒性,为向抗癌疗法提供了有前途的方法.
科学领域:
- 聚合物化学 聚合物化学
- 纳米技术纳米技术
- 生物医学工程 生物医学工程
背景情况:
- 纳米载体的生物降解性是响应刺激的聚合物药物递送的关键挑战.
- 开发安全有效的纳米载体对于向的癌症疗法至关重要.
研究的目的:
- 设计和合成新型可生物降解,对刺激有反应的聚氨,用于药物输送.
- 评估这些纳米载体在向抗癌药物输送方面的潜力,重点关注选择性和生物降解性.
主要方法:
- 定制设计和合成响应硫化 (H2S) 的丹西尔基触发分子,并纳入聚氨骨干.
- 自组装的纳米聚合物的形成来自两性聚氨 (PUx) 与生物素链末端.
- 在实验室中对多克索鲁比 (DOX) 载入的PU3纳米载体进行评估,包括血液溶解,对HeLa和HEK 293T细胞的细胞毒性测试,以及细胞内部化研究.
主要成果:
- 合成的两性聚氨 (PUx) 形成了自组装的纳米聚合物.
- 载有多克索鲁比的生物化PU3纳米载体显示出非溶血性质.
- 观察到优异的选择性,具有显著的HeLa细胞死亡 (~60%) 和对HEK 293T细胞活力 (~100%活力) 的最小影响.
- 与HEK 293T细胞相比,在HeLa细胞中增强了DOX载荷纳米载体的细胞内化,证实了受体介导内细胞分裂.
结论:
- 合成的聚氨作为有效的可生物降解的纳米载体用于药物输送.
- 这些纳米载体的H2S反应和生物素向性使得选择性抗癌药物输送成为可能.
- 这项研究为开发针对癌症治疗的先进纳米载体提出了一个有前途的战略.
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