天津医药 ›› 2025, Vol. 53 ›› Issue (9): 897-902.doi: 10.11958/20250238

• 细胞与分子生物学 •    下一篇

川楝素联合奥拉帕尼在三阴性乳腺癌中的抗肿瘤机制研究

黄慧琦1(), 伍秋苑1,2, 张昆1, 李佩贤3, 熊亚明3, 叶国麟1, 周丹1,2,()   

  1. 1 佛山市第一人民医院乳腺外科(邮编528000)
    2 广东医科大学第一临床医学院
    3 佛山市第一人民医院转化医学研究院
  • 收稿日期:2025-01-15 修回日期:2025-05-18 出版日期:2025-09-15 发布日期:2025-09-16
  • 通讯作者: E-mail:zhoudanms@hotmail.com
  • 作者简介:黄慧琦(1993),女,主治医师,主要从事乳腺良恶性肿瘤的诊疗方面研究。E-mail:hhqi2661@fsyyy.com
  • 基金资助:
    广东省中医药局科研课题(20231324);广东省基础与应用基础研究基金(2022A1515140091);佛山市登峰计划项目(2020B18);广东省医学科学技术研究基金(A2019329)

Research on the anti-tumor mechanism of toosendanin combined with olaparib in triple negative breast cancer

HUANG Huiqi1(), WU Qiuyuan1,2, ZHANG Kun1, LI Peixian3, XIONG Yaming3, YE Guolin1, ZHOU Dan1,2,()   

  1. 1 Department of Breast Surgery, Foshan First People's Hospital, Foshan 528000, China
    2 the First School of Clinical Medicine, Guangdong Medical University
    3 Foshan First People's Hospital Translational Medicine Research Institute
  • Received:2025-01-15 Revised:2025-05-18 Published:2025-09-15 Online:2025-09-16
  • Contact: E-mail: zhoudanms@hotmail.com

摘要:

目的 探讨川楝素(TSN)联合奥拉帕尼在三阴性乳腺癌(TNBC)中的作用机制。方法 体外培养人TNBC细胞系MDA-MB-231,利用0.1 μmol/L TSN和0.5、1.0、5.0 μmol/L奥拉帕尼单独或共同处理,评估TSN联合奥拉帕尼对MDA-MB-231自噬水平及细胞活力的影响。选取4例TNBC患者的新辅助化疗后肿瘤残留手术标本,建立患者来源类器官(PDOs)模型,分为5 μmol/L、10 μmol/L奥拉帕尼组,0.05 μmol/L TSN组和TSN+奥拉帕尼组(0.1 μmol/L TSN分别与5、10 μmol/L奥拉帕尼联合处理)。检测TSN联合奥拉帕尼在TNBC患者中的药物敏感性,验证TSN联合奥拉帕尼是否能够在PDOs模型中发挥肿瘤杀伤作用。结果 奥拉帕尼在MDA-MB-231细胞系中诱导自噬,相比单独使用奥拉帕尼,TSN和5.0 μmol/L奥拉帕尼联合使用可抑制MDA-MB-231细胞的增殖(P<0.01)。在TNBC的PDOs模型中,与单用奥拉帕尼相比,加用TSN后细胞死亡率明显升高(P<0.01)。结论 TSN联合奥拉帕尼的肿瘤杀伤作用优于单独使用奥拉帕尼,其机制可能与抑制自噬有关。

关键词: 三阴性乳腺癌, 川楝素, 自噬, 类器官, 抗肿瘤药, 植物, 奥拉帕尼, 协同作用

Abstract:

Objective To investigate the anti-tumor mechanism of natural compound toosendanin (TSN) combined with olaparib in triple-negative breast cancer (TNBC). Methods Human TNBC cell line MDA-MB-231 was cultured in vitro. Effects of TSN combined with olaparib on autophagy levels and cell viability in MDA-MB-231 cells were evaluated using 0.5, 1.0, and 5.0 μmol/L olaparib alone or in combination. Surgical specimens from four TNBC patients who had residual tumors after neoadjuvant chemotherapy were selected to establish patient-derived organoid (PDO) models. The drug sensitivity of TSN combined with olaparib in TNBC patients was detected. Whether TSN combined with olaparib can exert autophagy inhibitory effects and tumor-killing effects in organoid model was verified. Results Olaparib induced autophagy in MDA-MB-231 cell line, and the combination of TSN and olaparib inhibited the proliferation of MDA-MB-231 cells (P<0.01). In the TNBC PDOs model, the therapeutic effect of olaparib combined with TSN can significantly reduce the proliferation ability of tumor cells compared with olaparib alone. Conclusion The tumor-killing effect of TSN combined with olaparib is superior to that of olaparib alone, and the mechanism may be related to autophagy inhibition.

Key words: triple negative breast neoplasms, toosendanin, autophagy, organoids, antineoplastic agents, phytogenic, olaparib, synergistic effect

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