http://jcps.bjmu.edu.cn

中国药学(英文版) ›› 2021, Vol. 30 ›› Issue (11): 904-911.DOI: 10.5246/jcps.2021.11.078

• 【研究论文】 • 上一篇    下一篇

用于光动力疗法的pH敏感性碳酸钙-二氢卟吩e6纳米粒的制备与表征

王景茹1,2, 张爽1,2, 李卓越1,2, 徐美琦1,2, 王光雪1,2, 张烜1,2,*()   

  1. 1. 北京大学医学部 药学院 分子药剂学与新释药系统北京市重点实验室, 北京 100191
    2. 北京大学医学部 药学院 药剂学系, 北京 100191
  • 收稿日期:2021-05-19 修回日期:2021-06-20 接受日期:2021-07-14 出版日期:2021-11-28 发布日期:2021-11-28
  • 通讯作者: 张烜
  • 作者简介:
    + Tel.: +86-10-82805928, E-mail:

Preparation and characterization of pH-sensitive calcium carbonate-chlorin e6 nanoparticles for photodynamic therapy

Jingru Wang1,2, Shuang Zhang1,2, Zhuoyue Li1,2, Meiqi Xu1,2, Guangxue Wang1,2, Xuan Zhang1,2,*()   

  1. 1 Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
    2 Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
  • Received:2021-05-19 Revised:2021-06-20 Accepted:2021-07-14 Online:2021-11-28 Published:2021-11-28
  • Contact: Xuan Zhang

摘要:

本研究将碳酸钙纳米粒与光敏剂二氢卟吩e6(Ce6)结合构建碳酸钙-二氢卟吩e6纳米粒(CaCO3-Ce6 NPs), 对其粒径、电位、光学性质、pH敏感性和ROS产生能力进行表征。结果表明, CaCO3-Ce6 NPs为粒径均匀的纳米粒, 具有优良的光学特性和pH敏感性。在4T1细胞中, 660 nm激光照射下, CaCO3-Ce6 NPs具有比Ce6更强的ROS产生能力。上述结果表明, CaCO3-Ce6 NPs在660 nm激光照射下具有增强的光动力作用, 有望获得更强的抗肿瘤药效。

关键词: 碳酸钙纳米粒, 二氢卟吩e6, 光动力, 活性氧, pH敏感

Abstract:

In the present study, we combined CaCO3 NPs and Ce6 to construct CaCO3-Ce6 nanoparticles (NPs). CaCO3-Ce6 NPs were characterized in terms of particle size, zeta potential, UV-Vis absorption spectrum, fluorescence spectrum, FTIR spectrum, and pH-responsive behavior. The reactive oxygen species (ROS) generation in vitro was measured in 4T1 cells. The results showed that CaCO3-Ce6 NPs were uniform-sized NPs with excellent fluorescence properties and pH-responsive behavior. The ability of ROS generation by CaCO3-Ce6 NPs was stronger compared with Ce6 in 4T1 cells because Ca2+ could enhance the ROS generation, which could contribute to a stronger anti-tumor effect.

Key words: Calcium carbonate nanoparticles, Chlorin e6, Photodynamic therapy, Reactive oxygen species, pH-responsive

Supporting: