Methods The mRNA expression of five MMR genes and six microsatellite markers were detected in 46 primary lung cancer tissues by RT PCR and PCR denature polyacrylamide gel electrophoresis silver staining methods.

• 方法 用RT PCR和PCR -变性聚丙烯酰胺凝胶电泳 -银染法 ,检测 46例原发性肺癌组织中 5种MMR基因mRNA表达及 6种微卫星改变。