卫星类型的硫原子分布在三碳酸盐结合桥梁二进制药纳米组件中:实现稳定性和可激活性
Lingxiao Li1, Tian Liu1, Shiyi Zuo1
1Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China.
Advanced materials (Deerfield Beach, Fla.)
|November 20, 2023
概括
一种新型的三碳酸盐键增强了用于化疗的同位体原药纳米组件 (HDPN). 这种稳定的链接器改善了药物输送,瘤向和癌细胞亡,克服了HDPN稳定性和激活的先前限制.
科学领域:
- 纳米医学是一种纳米医学.
- 药物运输 药物运输 药物运输
- 化学连接器设计 化学连接器设计
背景情况:
- 同位体原药纳米组件 (HDPN) 显示出改善化疗输送的潜力.
- 目前的HDPN在链接器稳定性,自组装和特定站点前药物激活方面面临挑战.
- 三硫化物键提供了一些组装稳定性,但损害了化学稳定性.
研究的目的:
- 开发HDPN的新型化学链接器,以提高稳定性和按需激活.
- 调查新链接器对HDPN在癌症治疗中的性能的影响.
- 为了解决HDPN设计中现有的连接器的局限性.
主要方法:
- 通过将一个碳原子插入三硫化键中,合成三硫酸碳酸盐键 (─SC(S) S─).
- 用新的链接器对HDPN的化学和自我组装稳定性的评估.
- 评估前药物激活,细胞活性氧物种 (ROS) 水平和瘤细胞亡.
- 在体内研究以确定HDPN的寿命和瘤特异性.
主要成果:
- 三碳酸盐键 (─SC(S) S─) 对HDPN的化学稳定性和自组合稳定性得到了改善.
- 保持了对前药物的按需生物激活.
- 这种SC~S~S键抑制了抗氧化剂防御系统,增加了细胞ROS,促进了瘤细胞的亡.
- HDPNs在体内表现出增强的长寿和瘤特异性.
结论:
- 新型的三碳酸盐键 (─SC(S) S─) 有效地克服了HDPN的稳定性和激活挑战.
- 这种链接器增强了HDPN的性能,从而改善了瘤细胞的亡和治疗结果.
- 与三碳酸盐结合的HDPN代表了有效的瘤治疗的有希望的策略.
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