胸腺嘧啶磷酸化酶及二氢嘧啶脱氢酶与卡培他滨及氟尿嘧啶关系的研究  被引量:2

Evaluation of correlation between TPase/DPDase and capecitabine/5-fluorouracil

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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 .

关 键 词:TP酶 DPD酶 高效液相色谱法(HPLC) 卡培他滨 氟尿嘧啶 乳腺肿瘤 

分 类 号:R737.9[医药卫生—肿瘤] R730.53[医药卫生—临床医学]

 

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