基于xybutyl奇托寡糖的热响应复合纳米粒子:制造,刺激释放和癌症治疗
Chong Chen1, Weibo Zhang1, Pengjie Wang1
1Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China.
International journal of biological macromolecules
|July 14, 2024
概括
稳定,热响应复合纳米粒子 (CNPs) 使用生物聚合物开发用于增强癌症治疗. 这些含有药物的CNP显示出受控释放和强烈的抗瘤活性,特别是在更高的温度下.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 药物运输 药物运输 药物运输
背景情况:
- 从生物聚合物设计热响应纳米载体,为有效的癌症治疗提出了挑战.
- 现有的纳米载体系统需要优化稳定性和可控的药物释放.
- 基于生物聚合物的纳米载体为向和刺激响应的药物递送提供了潜力.
研究的目的:
- 开发稳定,热响应的复合纳米粒子 (CNPs),使用氧丁基托寡糖化物 (HBCOS) 和 kazeinate (SC).
- 调查这些CNP的热反应性药物释放特征.
- 为了评估体外抗瘤疗效和药物负载的CNP的细胞吸收.
主要方法:
- 通过 HBCOS 和 SC 的静电相互作用和共价交联来制造 CNP.
- 描述CNP的热反应行为,稳定性和药物释放动力学 (DOX).
- 在实验室中对HT-29细胞进行细胞毒性测定和在不同温度和pH值下进行细胞吸收研究.
主要成果:
- CNPs表现出度独立的热响应行为,非吸附聚合和非血解,这表明其稳定性很好.
- 从CNP中释放的DOX在42°C显著高于37°C,在较低的pH值下释放的强化,遵循第一阶的Fickian扩散动力学.
- 含有DOX的CNP表现出显著的热反应性抗瘤活性,在42°C下降HT-29细胞活力,并在温度上升时有效的细胞质积累和药物释放.
结论:
- 使用生物聚合物 (HBCOS和SC) 成功制造出稳定,热敏的CNP.
- 这些CNP有助于控制抗癌药物释放以应对温度变化,在高温下提高效率.
- 开发的基于生物聚合物的CNP显示出作为针对癌症治疗的有效纳米载体的承诺.
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