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OCTN2与前列腺癌细胞对奥沙利铂化疗敏感性的相关性                                                              Δ



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          褚 雷    1, 2* ,徐 斌 ,沙德厚 ,王 磊 ,程广舟 ,张继东 (1.徐州医科大学附属滕州医院泌尿外科,山东 枣庄
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          277500;2.济宁医学院附属滕州中心人民医院泌尿外科,山东 枣庄 277500;3.山东中医药大学中医药创新研
          究院,济南 250355;4.枣庄市妇幼保健院检验科,山东 枣庄 277100;5.济宁医学院附属滕州中心人民医院检
          验科,山东 枣庄 277500)

          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2023)12-1468-05
          DOI  10.6039/j.issn.1001-0408.2023.12.11

          摘   要  目的  研究新型有机阳离子转运体2(OCTN2)与前列腺癌细胞对奥沙利铂化疗敏感性的相关性。方法  收集行前列腺癌
          根治术患者的前列腺癌组织标本,采用免疫组化法检查组织中的OCTN2蛋白表达;培养标本原代细胞得到前列腺癌细胞株。采
          用电感耦合等离子体质谱法检测癌细胞对低浓度(0.1 μmol/L)奥沙利铂的摄取量,采用Real time PCR及Western blot法检测癌细
          胞中OCTN2 mRNA及蛋白的表达水平;选择OCTN2蛋白表达最高及最低的前列腺癌细胞株,采用三磷酸腺苷肿瘤药物敏感性检
          测法(ATP-TCA)计算奥沙利铂对癌细胞的半数抑制浓度(IC50 );采用MTT法检测血药峰浓度奥沙利铂(50 μmol/L)对前列腺癌细
          胞的抑制率。采用Spearman法分析前列腺癌细胞对奥沙利铂摄取量与奥沙利铂对前列腺癌细胞抑制率及OCTN2 mRNA表达的
          相关性。结果  OCTN2定位于癌细胞膜;癌细胞对奥沙利铂的摄取量为0.283±0.264(n=12);不同癌细胞中OCTN2 mRNA和蛋
          白表达差异明显;OCTN2 高表达的癌细胞对奥沙利铂的敏感性(IC50为 4.61 μmol/L)高于 OCTN2 低表达的癌细胞(IC50为 26.23
          μmol/L)。奥沙利铂对癌细胞的抑制率为(25.4±10.8)%(n=12)。前列腺癌细胞对奥沙利铂的摄取量与奥沙利铂对前列腺癌细
          胞的增殖抑制率及前列腺癌细胞中OCTN2 mRNA表达水平三者间存在相关性(P<0.05)。结论  OCTN2高表达可能促进前列腺
          癌细胞对奥沙利铂的摄取,其表达水平可作为预测前列腺癌细胞对奥沙利铂化疗敏感性的参考依据之一。
          关键词  新型有机阳离子转运体2;奥沙利铂;前列腺癌细胞;化疗敏感性

          Correlation of OCTN2 with the chemosensitivity of prostate cancer cells to oxaliplatin
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          CHU Lei ,XU Bin ,SHA Dehou ,WANG Lei ,CHENG Guangzhou ,ZHANG Jidong(1. Dept. of Urology, the
          Affiliated  Tengzhou  Hospital  of  Xuzhou  Medical  University,  Shandong  Zaozhuang  277500,  China;2.  Dept.  of
          Urology, the Affiliated Tengzhou Central People’s Hospital of Jining Medical University, Shandong Zaozhuang
          277500,  China;3.  Institute  of  Traditional  Chinese  Medicine  Innovation,  Shandong  University  of  Traditional
          Chinese  Medicine,  Jinan  250355,  China;4.  Dept.  of  Clinical  Laboratory,  Maternal  and  Child  Health  Care
          Hospital  of  Zaozhuang,  Shandong  Zaozhuang  277100,  China;5.  Dept.  of  Laboratory,  the Affiliated  Tengzhou
          Central People’s Hospital of Jining Medical University, Shandong Zaozhuang 277500, China)

          ABSTRACT    OBJECTIVE  To study the correlation of novel organic cation transporter 2 (OCTN2) with the chemosensitivity of
          prostate  cancer  cells  to  oxaliplatin.  METHODS  Tumor  samples  of  patients  receiving  radical  prostatectomy  were  collected,  and
          OCTN2  protein  was  detected  with  immunohistochemistry;  the  primary  cells  of  the  specimen  were  cultivated  to  obtain  prostate
          cancer cell line. Inductively coupled plasma mass spectrometry was used to detect the uptake of low concentration (0.1 μmol/L) of
          oxaliplatin  by  cancer  cells.  Real-time  PCR  and Western  blot  were  used  to  detect  the  mRNA  and  protein  expressions  of  OCTN2  in
          cancer  cells;  the  prostate  cancer  cells  with  the  highest  and  lowest  expression  of  OCTN2  protein  were  selected,  and  IC50  of
          oxaliplatin  to  prostate  cancer  cells  was  analyzed  by  ATP-TCA  method.  The  inhibitory  rate  of  plasma  peak  concentration  of
                                                              oxaliplatin (50  μmol/L)  to  prostate  cancer  cells  was  detected
              Δ 基金项目 徐州医科大学附属医院发展基金资助项目(No.
                                                              by  MTT  assay.  Spearman  method  was  used  to  analyze  the
          XYFY2021038);济宁医学院青年教师科研扶持基金资助项目(No.
                                                              relationship of the uptake of oxaliplatin by prostate cancer cells
          JY2017FS034)
                                                              with  inhibitory  rate  of  oxaliplatin  to  prostate  cancer  cells  and
             *第一作者 主治医师,博士。研究方向:泌尿系肿瘤。E-mail:
          505916443@qq.com                                    mRNA  expressions  of  OCTN2.  RESULTS  OCTN2  was
              #  通信作者 主 管 技 师 。 研 究 方 向 :临 床 检 验 。 E-mail:    located  on  the  membrane  of  cancer  cells,  and  the  uptake  of
          zjdtztougao@163.com                                 oxaliplatin  by  cancer  cells  was  0.283±0.264 (n=12).  The


          · 1468 ·    China Pharmacy  2023 Vol. 34  No. 12                            中国药房  2023年第34卷第12期
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