佩美特雷克塞德载入的超分子乙功能化pH响应的纳米载体通过生物素受体选择性地诱导亡,以增强抗瘤功效
Disha Marwaha1, Neha Singh2, Shalini Gautam2
1Division of Pharmaceutics and Pharmacokinetics, CSIR-Central Drug Research Institute, Lucknow, UP 226031, India; Academy of Scientific and Innovation Research (AcSIR), Ghaziabad, UP 201002, India.
Colloids and surfaces. B, Biointerfaces
|October 5, 2024
概括
新的pH响应性晶体体被开发使用乙功能化支柱[5]和甲基生物用于向癌症治疗. 这些药物输送系统显示了改善的药理动力学和减少瘤体积,最大限度地减少了目标外毒性.
科学领域:
- 超分子化学 超分子化学
- 材料科学是一种材料科学.
- 纳米技术纳米技术
- 药物交付是药物交付的过程.
背景情况:
- 佩美特雷克塞德 (PMX) 化疗面临的挑战是异于目标的毒性和向瘤部位的低最佳输送.
- 宿主-客人复杂化为开发先进的药物输送系统提供了一个有希望的策略.
- 晶体体呈现一种新的纳米结构,用于封装和输送治疗剂.
研究的目的:
- 开发新的pH响应性晶体体体,用于针对性地输送Pemetrexed (PMX).
- 通过先进的纳米载体设计,提高PMX的有效性和降低毒性.
- 研究主机-客人相互作用在创建功能性药物输送系统中的潜力.
主要方法:
- 通过宿主-客人相互作用合成乙功能化的支柱[5] (AP[5]) 和它们与甲基原 (MV) 的复合.
- 使用NMR,SEM,TEM,WAXS和SAED进行AP[5]-MV结晶体的制造和表征.
- 用生物素 (MV-BT) 修改晶体体的表面,以提高瘤细胞的向性.
- 使用CLSM进行体外药物释放和细胞吸收的评估.
- 在动物模型中进行的体内药理动力学和抗瘤功效研究.
主要成果:
- 成功合成和表征了具有高合稳定性和负表面电荷的pH响应AP[5]-MV晶体体.
- 生物素修饰晶体体 (PMX-BT@CLs) 证明了对过度表达生物素受体的瘤细胞的增强向.
- 在体内研究显示,与自由的PMX相比,PMX的药理动力学显著改善 (3.9倍高的AUC) 和瘤体积减少 (3.5倍低).
- 治疗PMX-BT@CLs导致平均存活时间显著提高.
结论:
- 乙功能化的支柱[5] 甲基生物体宿主-客体系统形成稳定,适合药物输送的pH响应性晶体体.
- 生物介导向显著改善了瘤部位的药物积累,并降低了全身毒性.
- 这些新型结晶体代表了针对性癌症治疗的有希望的平台,提高了药物的疗效和患者的治疗结果.
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