Expression of midkine and its clinical significance in esophageal squamous cell carcinoma
Expression of midkine and its clinical significance in esophageal squamous cell carcinoma
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DOI:
10.3748/wjg.v12.i13.2006
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发表时间:
2006-04-07
影响因子:
4.3
通讯作者:
Zhang, Qing-Yun
中科院分区:
文献类型:
--
作者:
Ren, Ying-Jia;Zhang, Qing-Yun
Aim: To investigate the expression of midkine in esophageal squamous cell carcinoma (ESCC) and analyze its relationship with clinicopathological features.Methods: RT-PCR and immunocytochemical staining were used to detect the expression of midkine mRNA and protein in EC109 cells, respectively. Then the expression of midkine in 66 cases of ESCC samples were detected by immunohistochemistry using monoclonal antibodies against human midkine.Results: Midkine was expressed in EC109 cell by RTPCR and immunocytochemistry. The immunoreactivity was detected in 56.1% (37/66) of the ESCC samples. The expression of midkine was found in cytoplasm of tumor cells. Notably, the intensity of midkine was stronger at the area abundant in vessels and the invading border of the tumors. Midkine was more intensely expressed in well differentiated tumors (76.9%) than in moderately and poorly differentiated tumors (43.1% and 41.2%, respectively) (P