高等学校化学学报 ›› 2025, Vol. 46 ›› Issue (1): 20240262.doi: 10.7503/cjcu20240262

• 研究论文 • 上一篇    下一篇

核糖核酸酶A表面原位聚合构建抗肿瘤纳米胶囊研究

赵启轩1, 马骏1, 刘爱江1, 梁骁1(), 李全顺1,2()   

  1. 1.吉林大学生命科学学院, 分子酶学工程教育部重点实验室
    2.超分子化学生物学研究中心, 长春 130012
  • 收稿日期:2024-05-31 出版日期:2025-01-10 发布日期:2024-11-08
  • 通讯作者: 梁骁,李全顺 E-mail:liang_xiao@jlu.edu.cn;quanshun@jlu.edu.cn
  • 基金资助:
    国家自然科学基金(32271319);吉林省自然科学基金(YDZJ202301ZYTS537);中国博士后科学基金面上项目(2023M741346)

In situ Polymerization Initiated on RNase A Surface to Construct Nanocapsules for the Treatment of Lung Cancer

ZHAO Qixuan1, MA Jun1, LIU Aijiang1, LIANG Xiao1(), LI Quanshun1,2()   

  1. 1.Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education,School of Life Sciences
    2.Center for Supramolecular Chemical Biology,Jilin University,Changchun 130012,China
  • Received:2024-05-31 Online:2025-01-10 Published:2024-11-08
  • Contact: LIANG Xiao, LI Quanshun E-mail:liang_xiao@jlu.edu.cn;quanshun@jlu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(32271319);the Natural Science Foundation of Jilin Province, China(YDZJ202301ZYTS537);the China Postdoctoral Science Foundation(2023M741346)

摘要:

通过原位聚合策略, 在核糖核酸酶A(RNase A)表面构建聚合物外壳, 制备了纳米胶囊n(RNase A). 表征结果表明, n(RNase A)呈现均一的球形结构, 流体力学直径和zeta电位分别为(118.9±14.1) nm和(7.3±1.5) mV. 通过荧光显微镜和流式细胞术对纳米胶囊n(RNase A)的肿瘤摄取能力进行表征, 发现该体系能够被非小细胞肺癌细胞系A549高效摄取. 以此为基础, 纳米胶囊n(RNase A)能够切割细胞质中的RNA分子, 诱导肿瘤细胞凋亡, 显著抑制肿瘤细胞增殖. 本研究利用表面原位聚合技术构建了能够实现RNase A胞内递送的纳米制剂, 为其它医用酶分子纳米胶囊的构建与评价提供了借鉴思路.

关键词: 核糖核酸酶A, 原位聚合, 纳米胶囊, 抗肿瘤制剂

Abstract:

The in situ polymerization strategy was applied to construct a polymeric shell on the surface of ribonuc-lease A(RNase A) to obtain n(RNase A) nanocapsules. The characterization showed that n(RNase A) exhibited a homogeneously spherical structure with hydrodynamic diameter and zeta potential values of (118.9±14.1) nm and (7.3±1.5) mV, respectively. Using fluorescence microscopic and flow cytometric analysis, n(RNase A) nanocapsules were identified to be efficiently internalized by A549 non-small cell lung cancer cells. After the internalization, n(RNase A) could further cleave RNA molecules in the cytosol, thereby inducing the cell apoptosis and inhibiting the cell proliferation. In conclusion, the present research successfully prepared a nanoformulation to facilitate the intracellular delivery of RNase A using surface-initiated in situ polymerization, and thus provided a useful idea for the construction and evaluation of other medicinal enzymes-based nanocapsules.

Key words: Ribonuclease A, In situ polymerization, Nanocapsules, Anti-tumor formulation

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