摘要
肿瘤细胞的多药耐药性(Multidrugresistance-MDR)是成功地治疗癌症的主要难题之一。根据多药耐药基因编码的P-糖蛋白(P-glycoprotein)——能量依赖的跨膜药物外输泵,其降低细胞毒药物在胞内的蓄积为多药耐药性产生的主要机制之一,应用逆转录聚合酶链反应(RT-PCR)技术检测了41例50份临床标本,其中正常人10份,初治患者9份、难治型白血病5份、缓解期20份、复发6份,并结合临床患者对化疗药物的反应,探讨它们之间的关系。结论是:多药耐药基因的表达水平与临床上患者对化疗药物的敏感性之间有较好的相关性,可望为临床化疗提供一项有意义的评估指标。
rug resistance of malignant cells is a major obstacleto effective antitumor chemotherapy. One of themechanisms of drug resistance is associated withamplification or over expression of multidrug resistancegene(MDR1) and phenotypic expression of a trans-membrane P-glycoprotein. We used RT-PCR (ReverseTranscription and Polymerase Chain Reaction)to detectthe levels of MDR1 expression in acute leukemias. Weestimated 50 clinical samples including 10 normalsubjects , 11 initially diagnosed cases , 5 refractory cases ,18 remission cases and 6 relapsed cases, and found asignificant correlation between MDR1 expression and theresponse of patients to chemotherapy.(* Institute of the Basic Medical Sciences, Academyof Military Medical Sciences, Beijing, 100850)
出处
《中华血液学杂志》
CAS
CSCD
北大核心
1994年第7期362-364,共3页
Chinese Journal of Hematology
关键词
多药
耐药性
聚合酶链反应
白血病
Multidrug resistance Polymerasechain reaction Acute leukemia