CD15、CD44v6和nm23H1的mRNA在大肠癌中的表达及其意义

目的：探讨CD15、CD44v6、nm23H1的mRNA表达与大肠癌临床病理参数及预后的关系。方法：应用原位杂交技术检测90例大肠癌标本中的CD15、CD44v6、nm23H1的mRNA表达。并结合53例5年以上随访资料进行分析。结果：90例大肠癌中CD15、CD44v6和nm23H1的mRNA阳性表达率分别为84.4%、68.9%和66.7%。CD15和CD44v6的mRNA高表达及nm23H1 mRNA低表达与大肠癌Dukes分期、浆膜浸润、淋巴结转移、肝脏转移均呈正相关。大肠癌中CD15 mRNA表达与CD44v6 mRNA表达呈正相关，与nm23H1 mRNA表达呈相关。结论：在大肠癌的侵袭转移中，CD15、CD44v6、nm23H1的mRNA表达可能具有正、负调节的协同作用。CD15 mRNA可作为预测大肠癌侵袭转移潜能、并客观评估患者预后的生物学指标。

Significance of mRNA expression of CD15,CD44v6 and nm23H1 in colon carcinoma

Objective: To study the expression of CD15 mRNA,CD44v6 mRNA and nm23H1 mRNA in colon carcinoma and its relationship with clinical pathological parameters and prognosis of colon carcinoma. Methods: In situ hybridization was used to detect the expression of CD15 mRNA, CD44v6 mRNA and nm23H1 mRNA in 90 cases of colon carcinoma, and 53 cases were followed up for more than 5 years. Results: In 90 cases of colon carcinoma, the expression of CD15 mRNA,CD44v6 mRNA and nm23H1 mRNA were 84.4%,68.9%,66.7%, respectively. The high level expression of CD15 mRNA, CD44v6 mRNA and the low level expression of nm23H1 mRNA were positively corelated with the Dukes staging,serosa infiltration,lymph node and liver metastasis of colon carcinoma.The expression of CD15 mRNA in colon carcinoma was positively associated with that of CD44v6 mRNA and negatively with that of nm23H1 mRNA. Conclusion: CD15 mRNA,CD44v6 mRNA and nm23H1 mRNA play an up-regulation and a down-regulation role, respectively, and have a synergistic action in metastasis of colon carcinoma. CD15 mRNA can be used as a new biological index to predict the invasive potential of colon carcinoma and objectively evaluate the prognosis of patients.