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题目:: Increased expression of Rab25 in breast cancer correlates with lymphatic metastasis.
作者:: Yin(Y X),Shen(F),Pei(H),Ding(Y),Zhao(Hua),Zhao(Min),Chen(Q)
状态:: 发布时间2012-10-11 , 更新时间 2016-11-25
期刊:: Tumour Biol
摘要:: Breast cancer is the most common cancer in women worldwide. Studies have suggested that Ras-related protein 25 (Rab25), a member of Rab small GTPase family, is involved in the pathogenesis of breast cancer. In this study, we investigated whether the expression of Rab25 correlated with lymphatic metastasis in breast cancer and whether the expression of Rab25 was positively correlated with oestrogen receptor (ER) and progesterone receptor (PR) expression in breast cancer. Breast cancer tissues from 42 invasive ductal breast cancer patients with or without lymphatic metastasis were collected and the levels of Rab25 mRNA and protein measured by quantitative real-time PCR and immunohistochemistry, respectively. The mRNA level of Rab25 was significantly increased in invasive ductal breast cancer with lymphatic metastasis compared to that in invasive ductal breast cancer without lymphatic metastasis. Immunohistochemical analysis demonstrated that Rab25 and vascular endothelial growth factor (VEGF) were highly expressed in invasive ductal breast cancer with lymphatic metastasis regardless of whether the cancer is ER and PR positive or negative. Higher expression of Rab25 positively correlated with VEGF expression. However, the expressions of Rab25 in ER and PR-positive cancers were much higher than ER and PR-negative cancers regardless of whether lymphatic metastasis occurred. These data suggest that higher level of Rab25 was associated with lymphatic metastasis, specifically in ER and PR-positive breast cancer. The better understanding of the mechanism of Rab25 may provide a basis for the development of a novel therapeutic target in breast cancer.
语言:: eng
DOI:: 10.1007/s13277-012-0412-5

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