高等学校化学学报 ›› 2025, Vol. 46 ›› Issue (1): 20240226.doi: 10.7503/cjcu20240226

• 研究论文 • 上一篇    下一篇

功能性多酚-精氨酸自组装纳米药物用于乳腺癌放射增敏

宁佳雨, 郝鹏飞, 王峰, 叶家全, 崇羽()   

  1. 省部共建“放射医学与辐射防护”国家重点实验室, 苏州大学苏州医学院放射医学与防护学院, 江苏高校放射医学协同创新中心, 苏州 215123
  • 收稿日期:2024-05-08 出版日期:2025-01-10 发布日期:2024-06-19
  • 通讯作者: 崇羽 E-mail:chongyu@suda.edu.cn
  • 基金资助:
    江苏省自然科学基金(BK20211596);江苏高校优势学科建设工程资助项目

Functional Polyphenol-Arginine Self-assembled Nanodrug for Radiosensitization in Breast Cancer

NING Jiayu, HAO Pengfei, WANG Feng, YE Jiaquan, CHONG Yu()   

  1. State Key Laboratory of Radiation Medicine and Protection,School of Radiation Medicine and Protection,Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions,Soochow University,Suzhou 215123,China
  • Received:2024-05-08 Online:2025-01-10 Published:2024-06-19
  • Contact: CHONG Yu E-mail:chongyu@suda.edu.cn
  • Supported by:
    the Natural Science Foundation of Jiangsu Province, China(BK20211596);the Priority Academic Program Development of Jiangsu Higher Education Institutions(PDAD), China

摘要:

乳腺癌是女性最常见的恶性肿瘤之一, 放射治疗可有效改善乳腺癌患者的预后. 为了提高乳腺癌的放射治疗效果, 本文基于表没食子儿茶素没食子酸酯(EGCG)、 右旋精氨酸(D-Arg)与甲醛在水介质中的化学反应驱动自组装, 制备了复合纳米粒子(E-DA NPs), 并探究了其放射增敏效应. 该复合纳米粒子可有效提高EGCG药物递送的半衰期和生物利用度, 抑制肿瘤细胞的增殖, 增强射线对肿瘤细胞的杀伤效应; 同时, 肿瘤微环境中高浓度H2O2D-Arg反应释放NO, 进而降低DNA损伤修复水平, 影响细胞增殖, 增强肿瘤细胞的放疗敏感性, 提高肿瘤的控制率和治愈率. 本研究通过构筑多酚-精氨酸自组装纳米药物, 为开发肿瘤微环境响应性的新型放射增敏药物提供了新的方向.

关键词: 乳腺癌, 多酚, 精氨酸, 一氧化氮, 放射增敏

Abstract:

Breast cancer is one of the most common malignant tumors in women, and radiotherapy effectively improves the prognosis of breast cancer patients. In order to enhance the efficacy of radiotherapy for breast cancer, this study prepared composite nanoparticles(E-DA NPs) based on the chemical reaction-driven self-assembly of epigallocatechin gallate(EGCG), D-arginine(D-Arg), and formaldehyde in an aqueous medium, and explored their radiosensitizing effects. These composite nanoparticles effectively increased the half-life and bioavailability of EGCG drug delivery, inhibited tumor cell proliferation, and enhanced the radiation-induced damage to tumor cells. Additionally, in the tumor microenvironment, the reaction of high concentrations of H2O2 with D-Arg released nitric oxide(NO), which reduced DNA damage repair levels, affected cell proliferation, enhanced the radiosensitivity of tumor cells, and improved tumor control and cure rates. This work, through the construction of polyphenol-arginine self-assembling nanomedicines, provides a new direction for developing novel radiotherapy sensitizers responsive to the tumor microenvironment.

Key words: Breast cancer, Polyphenol, Arginine, Nitric oxide, Radiosensitization

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