CCDC8基因在乳腺癌中的表达

目的 探讨CCDC8在乳腺癌组织中的表达及其与乳腺癌临床病理特征的关系.方法 采用定量反转录聚合酶链反应（qRT-PCR）分析CCDC8在40例乳腺癌组织和22例良性乳腺肿瘤组织中的表达情况;以及CCDC8的表达与年龄、肿块大小、临床分期、雌激素受体（ER）、孕激素受体（PR）、CerbB2、p53 、Ki-67、nm23之间的关系.结果 CCDC8基因在乳腺良性肿瘤中的表达量（1685±755）明显高于乳腺癌组织中的表达量（502.1±223.2）;CCDC8基因的表达量在年龄＞50岁（789.8±367）乳腺癌组织中的表达高于年龄≤50岁（452.5±170.3）的乳腺癌组织;CCDC8的表达与ER、PR、CerbB2、p53、Ki-67、临床分期之间差异无统计学意义（P＞ 0.05）;CCDC8的表达与nm23的表达差异有统计学意义（P=0.044）;CCDC8与nm23呈负相关（Correlation Coegicient=-0.400,P=0.039＜ 0.05）.结论 CCDC8在乳腺肿瘤组织中有表达,恶性组织表达量低于良性组织,CCDC8的表达与年龄、肿块大小、nm23有相关性,CCDC8可能是乳腺癌的一个抑癌基因影响乳腺癌的发生、发展.

The expression of CCDC8 gene in breast cancer

Objective To determine the relationship between CCDC8 gene and breast cancer.Methods 40 cancerous breast tissue and 22 benign breast tissue were included.qRT-PCR was performed to investigate the expression level of CCDC8 in breast tissue.The correlation between CCDC8 level and the age of patients,tumor size,clinical staging,and the expression levels of estrogen and progesterone receptors,CerbB2,Ki-67,p53 and nm23 were analyzed.Results The expression level of CCDC8 in benign breast tissue （1685＆#177;755） was significantly higher than that in cancerous tissues （502.1 ＆#177;223.2）.Tissues obtained from patients over age 50 showed an increased level of CCDC8 （789.8＆#177;367） in comparison to those from patients age 50 or younger （452.5＆#177;170.3）.The level of CCDC8 expression was negatively correlated with nm23 level （Correlation Coefficient =-0.400,P =0.039）,while no correlation was found between CCDC8 and cancer stages,estrogen and progesterone receptor,CerbB2,Ki-67and p53.Conclusion The negative correlations between CCDC8 and age,tumor size and nm23 indicate that CCDC8 is a potential tumor suppressor,influencing the occurrence and progression in breast cancer.