摘要:目的:探明STAT3与肺腺癌细胞多药耐药之间的关系。方法:采用免疫组化法测定A549及A549/CARP耐卡铂细胞株中STAT3、LRP、MR.P蛋白表达情况。结果:STAT3在A549组、A549/CARP组中阳性细胞数无显著性差异(t=1.519,P〉0.05);LRP、MRP在A549组、A549/CARP组中阳性细胞数有显著性差异(t=3.350,P〈0.01)(t=3.747,P〈0.01);STAT3、LRP、MRP之间表达均无相关性(r=o.061,P〉0.05)。结论:STAT3并未直接参与介导肺腺癌的多药耐药性;LRP、MRP均参与了诱导肺腺癌的耐药,但二者之间无相关性;STAT3信号传导途径与LRP、MRP蛋白的激活机制可能无关。
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