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作 者:杨俊兰[1] 戴为民[1] 石廷章[1] 魏秀芳[1]
出 处:《中国肺癌杂志》2001年第3期175-177,共3页Chinese Journal of Lung Cancer
摘 要:目的 观察肺癌组织及癌旁肺组织MDR1 mRNA、MRP mRNA及LRP mRNA的表达。方法 采用RT PCR法检测 30例肺癌患者癌组织和正常肺组织中MDR1 mRNA、MRP mRNA和LRP mRNA的表达情况。结果 MDR1 mRNA在肺癌组织及癌旁肺组织的表达阳性率分别为 40 %及 16 .6 7% (P =0 .0 45 ) ,其表达与细胞分化程度、临床分期及病理类型无明显关系。MRP mRNA在肺癌组织及癌旁肺组织的表达分别为 43 .33 %及 2 6 .6 7% ,低分化者MRP的表达率明显高于中高分化者 (P =0 .0 3) ,其表达与临床分期无明显关系。LRP mRNA在肺癌组织及癌旁肺组织的表达分别为 5 6 .6 7%及 10 % (P =0 .0 0 0 4) ,其表达与肿瘤类型、临床分期及癌细胞的分化程度无明显关系。 30例肺癌组织中MDR1 mRNA、MRP mRNA、LRP mRNA共同表达者 7例(2 3 .33 % ) ,三者均无表达者 10例 (33 .33 % ) ,三者的一致性达 5 6 .6 7%。结论 MDR1 mRNA、MRP mRNA、LRP mRNA在肺癌的耐药中可能起重要作用。Objective To investigate the expression of multidrug resistance (MDR1), multidrug resistance associated protein (MRP) and lung resistance protein (LRP) genes in patients with non small cell lung cancer (NSCLC). Methods Expression of MDR1, MRP and LRP genes was detected in 30 NSCLC patients by RT PCR method. Results The positive rates of MDR1 expression were 40% and 16.67% respectively in lung cancer tissues and normal lung tissues (P=0.045), and it was not associated with the degree of cell differentiation, histological classification and the clinical stage. The positive rates of MRP expression were 43.33% and 26.67% respectively in lung cancer tissues and normal lung tissues. Its expression was related to degree of cell differentiation (P=0.03), but not to the histological classification and the clinical stage. LRP expression of lung cancer tissues (56.67%) was much higher than that of normal tissues (P= 0.000?4) , and it was not associated with degree of cell differentiation, histological classification and the clinical stage. Of the 30 lung cancer specimens, 7 expressed all the three kinds of genes, and 10 expressed none of them. The coincident rate was 56.67% . Conclusion The results suggest that MDR1, MRP and LRP gene may play important roles in drug resistance in NSCLC.
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