DCC mRNA in colorectal carcionma. Methods: The expressions of CD44v mRNA and DCC mRNA in 92 cases of primary colorectal carcino-ma(PCC) and 20 normal colon mucosa specimens were detected by RT - PCR.

• 方法:应用逆转录聚合酶链反应(RT-PCR)技术；检测92份原发性大肠癌及20份正常大肠粘膜的CD44v mRNA和DCC mRNA的表达情况.