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·药学研究·
基于转录组学探讨欧前胡素改善乳腺癌多柔比星耐药的机制
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李意婷 ,董 伟 ,梁新丽 ,王 虎 ,邱雨美 ,丁小云 ,张 浩 ,鲍会云 ,李娴晰 ,汤喜兰 (1.江西科技师范
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大学药学院,南昌 330013;2.江西中医药大学现代中药制剂教育部重点实验室,南昌 330004)
中图分类号 R965;R285 文献标志码 A 文章编号 1001-0408(2025)05-0529-06
DOI 10.6039/j.issn.1001-0408.2025.05.04
摘 要 目的 研究欧前胡素(IMP)对乳腺癌多柔比星(DOX)耐药的逆转作用及可能机制。方法 采用MTT法考察IMP最大无
毒质量浓度(100 μg/mL)与DOX不同质量浓度(12.5、25、50、75、100 μg/mL)联用对MCF-7/DOX细胞增殖的影响;将MCF-7/DOX
细胞分为空白对照组(1‰ 二甲基亚砜)、DOX 组(50 μg/mL)、IMP+DOX 组(100 μg/mL IMP+50 μg/mL DOX)和 IMP 组(100
μg/mL),检测各组细胞中多药耐药蛋白1(MDR1)、多药耐药相关蛋白1的mRNA及其蛋白表达水平;采用转录组测序技术及基
因本体(GO)富集分析、京都基因与基因组百科全书(KEGG)通路富集分析筛选IMP改善乳腺癌DOX耐药相关的通路和靶点,并
进行验证。结果 与单用 DOX 比较,IMP 与 DOX 联用后,DOX 对 MCF-7/DOX 细胞的半数抑制浓度从 81.965 μg/mL 下降至
43.170 μg/mL,耐药逆转倍数为1.90;且联用可显著下调MDR1的mRNA表达(P<0.05)。GO富集分析和KEGG通路富集分析结
果显示,IMP逆转乳腺癌DOX耐药主要与调节解毒、多生物过程、细胞杀伤等生物过程有关,主要涉及p53信号通路,关键靶点为
组成型光形态建成蛋白1(COP1)、细胞周期蛋白E1(CCNE1)、生长停滞和DNA损伤诱导蛋白45A(GADD45A)及GADD45B。验
证实验结果显示,与 DOX 组比较,IMP+DOX 组细胞中 COP1 的 mRNA 表达有上调趋势,但 CCNE1、GADD45A 及 GADD45B 的
mRNA 表达均显著下调(P<0.05)。结论 IMP 逆转乳腺癌 DOX 耐药的作用可能与调控 p53 信号通路中 COP1、CCNE1、
GADD45A及GADD45B的表达有关。
关键词 欧前胡素;乳腺癌;多柔比星耐药;转录组学;p53信号通路
Mechanism of imperatorin in ameliorating doxorubicin resistance of breast cancer based on transcriptomics
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LI Yiting ,DONG Wei ,LIANG Xinli ,WANG Hu ,QIU Yumei ,DING Xiaoyun ,ZHANG Hao ,BAO Huiyun ,
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LI Xianxi ,TANG Xilan(1. School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang
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330013, China;2. Key Laboratory of Modern Preparation of Chinese Medicine, Ministry of Education, Jiangxi
University of Chinese Medicine, Nanchang 330004, China)
ABSTRACT OBJECTIVE To investigate the ameliorative effect and potential mechanism of imperatorin (IMP) on doxorubicin
(DOX) resistance in breast cancer. METHODS The effects of maximum non-toxic concentration (100 μg/mL) of IMP combined
with different concentrations of DOX (12.5, 25, 50, 75, 100 μg/mL) on the proliferation of MCF-7/DOX cells were determined
by MTT method. MCF-7/DOX cells were divided into blank control group (1‰ dimethyl sulfoxide), DOX group (50 μg/mL),
IMP+DOX group (100 μg/mL IMP+50 μg/mL DOX) and IMP group (100 μg/mL). mRNA and protein expressions of multidrug
resistance protein 1 (MDR1) and multidrug resistance-associated protein 1 in each group were measured. The relevant pathways and
targets involved in the improvement of DOX resistance in breast cancer cells by IMP were screened and validated by using
transcriptome sequencing technology, along with gene ontology (GO) enrichment analyses and Kyoto Encyclopedia of Genes and
Genomes (KEGG) pathway enrichment analyses. RESULTS Compared with DOX alone, the combination of IMP and DOX
reduced the half inhibitory concentration of DOX on MCF-7/DOX cells from 81.965 μg/mL to 43.170 μg/mL, the reverse fold was
1.90, and the mRNA expression of MDR1 was significantly down-regulated (P<0.05). The results of GO enrichment analyses and
KEGG pathway enrichment analyses indicated that the reversal of DOX resistance in breast cancer by IMP was mainly associated
with the regulation of biological processes such as
Δ 基金项目 国家自然科学基金项目(No.82060733);江西省卫生 detoxification, multiple biological processes, and cell killing.
健康委科研课题(No.202311141);江西科技师范大学创新训练项目 The main pathway involved was the p53 signaling pathway,
(No.XJ202411318115);江西中医药大学校级课题(No.jzyjg-2023-07) and the key targets mainly included constitutively
* 第一作者 硕 士 研 究 生 。 研 究 方 向 :中 药 药 理 。 E-mail:
photomorphogenic protein 1 (COP1), cyclin E1 (CCNE1),
1550142502@qq.com
# 通信作者 副教授,硕士生导师,博士。研究方向:中药药理。 growth arrest and DNA damage-inducible protein 45A
E-mail:tangxilan1983@163.com (GADD45A) and GADD45B. The results of the verification
中国药房 2025年第36卷第5期 China Pharmacy 2025 Vol. 36 No. 5 · 529 ·