The immediate early antigen (IEA) mRNA in CFU-MK and late antigen (LA) mRNA in CFU-E were detected by reverse transcriptase-polymerase chain reaction (RT-PCR).

• 用逆转录聚合酶链反应 (RT PCR)检测CFU E集落细胞中的晚期抗原 (lateantigen ,LA)mRNA及CFU MK集落细胞中的前早期抗原 (immediateearlyantigen ,IEA) )mRNA ;