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作 者:徐雅莉[1] 孙强[1] 叶敏[2] 周易冬[1] 茅枫[1] 关竞红[1]
机构地区:[1]中国医学科学院北京协和医学院北京协和医院乳腺外科,北京100730 [2]中国医学科学院北京协和医学院北京协和医院药剂科,北京100730
出 处:《中国肿瘤临床与康复》2008年第4期289-293,共5页Chinese Journal of Clinical Oncology and Rehabilitation
摘 要:目的 考察乳腺癌组织(Ca)及癌旁正常乳腺组织(Nor)中胸腺嘧啶磷酸化酶(TP酶)及二氢嘧啶脱氢酶(DPD酶)与化疗药物卡培他滨(CAP)及其活性代谢产物氟尿嘧啶(5-Fu)浓度的相关性。方法 应用ELISA方法定量测定26例经病理证实为乳腺癌患者的癌组织及正常组织中TP酶及DPD酶的表达水平;应用高效液相色谱法(HPLC)定量测定癌组织及正常组织中的CAP及5-Fu浓度。结果 TP酶在癌组织中平均表达水平是386.1163ng/mg蛋白,在正常组织中为42.5682ng/mg蛋白。DPD酶在癌组织中平均表达水平是209.528ng/mg蛋白,在正常组织中为339.368ng/mg蛋白。CAP/5-Fu比值范围是0.0804~5.0000。结论 在P=0.05水平上,癌组织中11P酶表达水平远远高于其在正常组织中的表达水平,DPD酶在癌组织及正常组织中的表达水平没有差异,但具有很强的相关性(Spearman相关系数=0.43〉Ts0.05/2(26)=0.390,P〈0.05)。TP/DPD预测CAP/5-Fu的效能高于TP酶及DPD酶。Objective To evaluate the correlation between biologic enzymes of thymidine phosphorylase (TPase) and dihydropyrimidine dehydrogenase (DPDase) and chemotherapeutic drug concentration of capecitabine(CAP) and 5-Fluorouracil (5-Fu) in breast cancer (Ca) and normal breast tissues (Nor). Methods In 26 cases of Ca and Nor tissues identified by pathology,TPase and DPDase protein levels were quantified by ELISA. The high-performance liquid chromatography ( HPLC ) was performed for detection of CAP and 5-Fu concentrations' in these 26 individuals. Results The average TPase level in Ca was 386. 1163 ng/( mg protein) ,and 42. 5682 ng/( mg protein) in Nor. The average DPDase level in Ca was 209. 528 ng/( mg protein), and 339. 368 ng/( mg protein) in Nor. The range of CAP/5-Fu ratio was 0. 0804-5. 0000. Conclusions At the level of P = 0. 05, the TPase level was higher in Ca than in Nor, while there was no difference in the DPDase levels between Ca and Nor. A strong correlation between DPDase levels in Ca and Nor was observed (Spearman coefficient = 0. 43 〉 Ts0.05/2(26) = 0. 390 ,P 〈 0. 05 ). Ratio of TP/ DPD is superior to efficacy of TPase and DPDase in predicting efficacy of CAP and 5-Fu .
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