由SN38指导的一类小分子前药物的自发组装
Zhenhai Tang1, Wenning Lan1, Kaiying Wen1
1College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China. hsu@scu.edu.cn.
Journal of materials chemistry. B
|September 10, 2024
概括
研究人员开发了小分子自我组装前药物 (SAPD),这些前药物自发形成纳米结构. 这些药物输送系统提供可控释放和对癌细胞的高疗效.
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:
- 小分子自我组装原药 (SAPD) 对纳米药物开发具有前景.
- 由于复杂的物理化学要求,SAPD的直接水性自组装具有挑战性.
研究的目的:
- 设计和合成能够在水溶液中自发自组装的新型小分子SAPD.
- 研究水友性域变异对纳米结构形成和细胞相互作用的影响.
- 评估开发的SAPDs的药物释放动力学和抗癌疗效.
主要方法:
- 抗癌药物SN38与水友辅助剂 (乙烯糖醇,氨基,基) 通过自燃链接剂的结合.
- 使用各种技术对自组装纳米结构 (形态,表面特征) 的表征.
- 在谷氨 (GSH) 存在时药物释放的评估和体外细胞毒性对结直肠癌细胞的评估.
主要成果:
- 由SN38单元的π-π相互作用驱动的SAPDs自发自组成明确的纤维纳米结构.
- 水友性域的调制有效控制了SAPD的疏水性,纳米结构形态和细胞吸收.
- 在GSH的存在下,SN38的有效和受控释放得到了实现,在体外表现出强大的抗癌活性.
结论:
- 为设计小分子 SAPD 建立了一个新的平台,使其能够自发自组装成超分子丝状结构.
- 母药的芳香相互作用可以指导药物载荷纳米结构的形成,为超分子药物递送提供了一个新的策略.
- 这些发现为开发具有增强治疗潜力的先进纳米药物提供了有前途的方法.
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