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Wang, Jun; Wu, Kaichun; Zhang, Dexin; Tang, Hongwei; Xie, Huahong; Hong, Liu; Pan, Yanglin; Lan, Mei; Hu, Shengjuan; Ning, Xiaoxuan; Fan, Daiming
Biochemical and biophysical research communications, 11/2005, Letnik: 337, Številka: 1Journal Article
The roles of angiopoietins in gastric cancer progression are still not fully understood. In this study the expressions of angiopoietin-1 (Ang-1), -2 (Ang-2) were compared by immunohistochemistry in 53 gastric cancer and 23 normal gastric mucosa samples. Results revealed that Ang-2 expression was significantly increased in gastric cancer tissues (74%) and was correlated with higher TNM stage, lymph node metastasis as well as distance metastasis. The expression of Ang-1 was also elevated in cancerous tissues (66%) and significantly associated with differentiation degree. In addition, Ang-2 as well as its receptor Tie2 expressions were higher in 12 pairs of gastric cancer tissue samples than those in corresponding adjacent samples by Western blot, while Ang-1 expression showed great heterogeneity. Furthermore, the expressions of Ang-1 and Ang-2 were almost positive in eight gastric cancer cell lines. Among them, AGS expressed both Ang-2 and a relatively moderate amount of Ang-2 443, a novel splice form of Ang-2, while others showed only Ang-2 mRNA expression.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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