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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 ·
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