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可生物降解的Zwitterionic基于PLA的纳米颗粒:设计和评估针对pH响应瘤向药物输送的设计和评估

Evi Christodoulou¹, Alexandros Tsimpolis^2,3, Konstantinos Theodorakis^2,3

¹Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.

|September 27, 2025

概括

由聚乳酸/聚乙烯基酸 (PLA/PEAd) 共聚合物制成的新型zwitterionic纳米颗粒显示出针对性化疗的前景. 这些可生物降解的载体在酸性瘤环境中释放药物,并表现出良好的生物相容性和抗癌活性.

科学领域:

生物材料科学生物材料科学
纳米技术纳米技术
聚合物化学聚合物化学

背景情况:

兹维特基子组为化学疗法提供了可生物降解和pH响应的纳米载体的潜力.
开发结合酸触发药物释放与生物相容性的纳米载体对于向药物输送至关重要.

研究的目的:

开发和描述基于与SBMA接种的聚乳酸/聚乙烯基酸盐 (PLA/PEAd) 共聚合物的zwitterionic纳米颗粒.
评估这些新型纳米载体的pH响应性药物释放,生物相容性和抗癌疗效.

主要方法:

合成了PLA/PEAd共聚合物,并使用环开聚合和受控激素接种将它们与zwitterionic单体SBMA接种.
制造了带有帕克利塔塞尔的纳米粒子,并描述了它们的物理化学特性,不同pH值的药物释放动力学,血红相容性和细胞毒性.

主要成果:

由此产生的zwitterionic纳米粒子表现出可调节的分子量,增强的水友性和受控的降解.
药物释放在酸性pH (5.0) 与生理pH (7.4) 相比显著更高,表明pH响应.
这些纳米颗粒显示出出色的血液兼容性和强大的抗癌活性对MDA-MB-231细胞,对正常细胞的毒性降低.

结论:

具有SBMA功能的PLA/PEAd纳米粒子是针对瘤向化疗的有效纳米载体.
这些纳米粒子为开发具有改善治疗结果的先进药物输送系统提供了一个有前途的平台.

关键词:

可生物降解的聚乙烯药物输送是响应pH的药物输送.帕克利塔克塞尔 (paclitaxel) 是一种药物.聚乙烯 (聚乙烯基酸盐) 是一种多乳酸多乳酸是什么意思在zwitterionic聚合物纳米粒子.

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