抗生素分子的超声波转化为选择性化疗纳米药物
Haiyan Zhu1,2, Sukhvir Kaur Bhangu2, Muthupandian Ashokkumar1
1School of Chemistry, The University of Melbourne, Parkville, Melbourne, VIC 3010, Australia.
Molecules (Basel, Switzerland)
|July 14, 2023
概括
抗生素药物可以通过超声波转化为抗癌纳米药物. 这种环保的方法产生了多西环林纳米药物,通过活性氧物种 (ROS) 选择性地杀死乳腺癌细胞.
科学领域:
- 纳米技术纳米技术
- 生物医学工程 生物医学工程
- 药物运输 药物运输 药物运输
背景情况:
- 无载体纳米药物在药物输送方面具有优势.
- 超分子自我组装是一种有前途的绿色合成方法.
- 超声波技术可以诱导药物分子的自我组装.
研究的目的:
- 为了研究药物分子在超声波诱导的超分子自我组装到无载体纳米药物.
- 评估这些新型纳米药物的抗癌和抗微生物活性.
- 探索抗生素药物作为化疗剂的潜力.
主要方法:
- 高频超声波 (490 kHz) 在水溶液中的应用.
- 纳米药物尺寸和稳定性 (~130 nm) 的表征.
- 对人类乳腺癌 (MDA-MB 231) 和健康纤维细胞的细胞毒性评估.
- 超分辨率显微镜 (STORM) 用于细胞内贩运分析.
主要成果:
- 在没有有机溶剂的情况下成功合成了稳定无载体的多西环林纳米药物.
- 这些纳米药物表现出对癌细胞的选择性ROS介导细胞毒性.
- 在健康的纤维细胞细胞上观察到微不足道的抗增殖作用.
- 风暴成像揭示了纳米药物的细胞内贩运和内体逃逸.
结论:
- 超声中介的超分子自我组装是一种有效的绿色方法,用于制造纳米药物.
- 微小的抗生素分子,如多克西环素,可以重新定位为选择性化疗纳米药物.
- 这些纳米药物显示有望针对性治疗癌症,并减少副作用.
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