构建多个程序响应的维生素E糖酸酸胺纳米载体及其在瘤治疗中的响应策略
Xiaotong Chen1, Lan Guo1, Saibo Ma1
1College of Marine Life Science, Ocean University of China, Qingdao 266003, PR China.
International journal of biological macromolecules
|July 6, 2023
概括
研究人员开发了一种新型的维生素E糖酸-酸-酸 (VCH) 纳米载体,用于癌症治疗. 这种多程序响应系统证明了有效的药物输送,瘤抑制,并改善了药物特性,而不会损害正常器官.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 癌症治疗方法 癌症治疗方法
背景情况:
- 多功能药物输送载体对于有效的癌症治疗至关重要.
- 开发响应的纳米载体可以提高药物的疗效,并最大限度地减少副作用.
- 维生素E酸盐,酸盐和酸胺为药物输送提供了独特的特性.
研究的目的:
- 开发和表征一种新的多程序响应药物载体,使用维生素E酸盐-酸盐-酸胺 (VCH).
- 评估VCH纳米载体的药物载荷,封装效率和释放动力学.
- 评估DOX/VCH纳米颗粒在抑制癌症生长方面的 in vitro 和 in vivo 疗效及其安全性.
主要方法:
- 使用FT-IR,1H NMR,DLS和SEM进行结构性表征.
- 药物载荷含量和封装效率的确定.
- 在不同的pH条件下进行体外药物释放研究.
- 用HepG2癌细胞进行细胞吸收研究.
- 在体内瘤抑制研究和组织学分析.
主要成果:
- 成功合成了VCH纳米结构,药物载荷含量为21.0%,封装效率为66.6%.
- DOX/VCH纳米颗粒表现出pH敏感和持续的药物释放,证明了HepG2细胞的有效吸收.
- 在体内研究显示显著的瘤抑制 (56.27%的瘤抑制率) 和瘤体积和体重的减少 (45.81%的TIR),没有观察到对正常器官的损伤.
- VCH纳米载体增强了药物溶解性,向性和溶酶体逃逸,同时也表现出pH敏感性和P-gp抑制.
结论:
- VCH纳米载体是癌症治疗的有前途的多功能系统,利用其组件的综合优势.
- 多程序响应性允许针对性释放药物,以响应瘤微环境.
- VCH纳米载体具有显著的潜力,可以改善癌症治疗结果,并提高安全性.
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