索拉尼索尔修改型普鲁龙F127triblock共聚合微粒用于抗癌药物输送
Mingze Xu1,2, Yanwei Yang3, Gai Liu2
1Orthopedics Department of Huaihe Hospital, Henan University, Kaifeng 475001, China.
Langmuir : the ACS journal of surfaces and colloids
|February 1, 2026
概括
一种新的Pluronic F127衍生物F127-MSS,增强了癌症治疗的药物负载和稳定性. 这种pH敏感的纳米载体显示出强大的抗瘤活性和降低毒性,为药物输送提供了有前途的方法.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 制药科学 制药科学
背景情况:
- 在药物应用中,Pluronic F127面临着稳定性和药物负荷的限制.
- 具有固有的生物活性的载体材料可以提供协同治疗效果并降低毒性.
- 索拉尼索尔 (SOL) 是一种天然的多胺,具有抗瘤特性和良好的脂性.
研究的目的:
- 通过将索拉纳衍生物 (单索拉纳糖酸盐,MSS) 与Pluronic F127.7结合,合成和描述一种新型的pH敏感纳米载体.
- 评估装载多克索鲁比 (DOX) 的开发纳米载体的药物载荷能力,稳定性和体外/体内抗瘤疗效.
- 探索F127-MSS-DOX小粒作为协同作用的癌症治疗系统的潜力.
主要方法:
- 合成单索拉尼西尔糖酸盐 (MSS) 并通过胺基键将其与Pluronic F127结合.
- 用 doxorubicin 载入 F127-MSS 微粒 (F127-MSS-DOX) 的制备和表征,包括颗粒大小,药物载荷能力和临界微粒度 (CMC).
- 在癌症细胞系 (HepG-2,MCF-7) 的体内细胞毒性测定和在瘤载体模型中的体内抗瘤研究.
主要成果:
- 与F127相比,F127-MSS的CMC降低了10倍,这表明菌稳定性得到了增强.
- F127-MSS-DOX小粒达到约6.2%的药物载荷能力,是F127-DOX小粒的四倍,平均颗粒大小约为130纳米.
- 该纳米载体证明了pH响应的药物释放,稳定性改善,MSS固有的抗瘤作用,以及显著的体内瘤抑制,与自由DOX相比,系统毒性降低.
结论:
- 与未经修改的Pluronic F127.7相比,F127-MSS纳米载体显著提高了稳定性和药物载荷能力.
- 对pH敏感的F127-MSS-DOX菌根提供有效的瘤向药物递送,并表现出协同作用的抗瘤效应.
- 这种新的纳米载体系统通过将改善的药物输送与内在药理学活性相结合,为增强癌症治疗提供了巨大的希望.
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