人乳腺癌组织中Tbx3基因表达变化及其意义

目的　探讨Tbx3基因在乳腺癌发生发展过程中的作用。方法　收取新鲜乳腺癌和癌旁乳腺组织各44例,以Tripure试剂提取细胞总RNA,以RT PCR法检测两种组织中Tbx3基因的表达水平,并比较其表达状况与乳腺癌相关临床病理因素之间的关系。结果　Tbx3基因在乳腺癌组织中的表达显著强于癌旁乳腺组织(P<0 01),与患者的年龄、肿瘤大小无关,但随着临床分期的进展、出现腋窝淋巴结转移、肿瘤浸润程度增加和组织学级别的增高,该基因的表达明显增强。结论　高表达的Tbx3基因可能在乳腺癌发生发展过程中起促进作用,并可能是乳腺癌进展中关键性转变的标志性基因之一。

Preliminary investigation of the gene expression of Tbx3 in human breast carcinoma tissues and the related significance

Objective To explore the role of Tbx3 gene in the occurrence and development of breast cancer. Methods 44 cases of the fresh breast carcinoma tissues and peritumor tissues were collected individually, the gene expression of Tbx3 was detected by RT PCR and the relationship between the changes of Tbx3 gene expression and the related clinicopathological factors of breast carcinoma was investigated. Results Obviously, the expression level of Tbx3 gene in breast carcinoma tissues was higher than that in the peritumor tissues. Furthermore, Tbx3 gene expression level in breast carcinoma tissues was not associated with the tumor size and ages of patients. However, the histological grading of breast carcinoma, tumor infiltrating degree, TNM stagings, and axillary lymph node metastasis were positively correlated with the expression level of Tbx3 gene. Conclusion Tbx3 gene with high expression may promote the occurrence and development of breast cancer and it is also likely a symbol of crucial changes in the development of breast cancer