Clinical Significance of Stanniocalcin 2 as a Prognostic Marker in Gastric Cancer

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書誌事項

公開日
2010-04-27
資源種別
journal article
権利情報
  • http://www.springer.com/tdm
DOI
  • 10.1245/s10434-010-1086-0
公開者
Springer Science and Business Media LLC

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説明

Stanniocalcins are glycoprotein hormones that were originally found in the endocrine gland of bony fish. Microarray expression data from 32 paired samples of gastric cancer and normal mucosa in a public microarray database showed that the expression level of Stanniocalcin 2 was higher in gastric cancer than in normal gastric mucosa. The clinical significance of Stanniocalcin 2 expression has been observed for several cancers. However, the relationship between Stanniocalcin 2 and clinicopathological factors in gastric cancer has not yet been investigated.We examined the clinical significance of Stanniocalcin 2 in gastric cancer in 108 gastric cancer samples using real-time reverse transcription-polymerase chain reaction (RT-PCR). Immunohistochemical studies were conducted with paraffin sections. The suppression analysis of Stanniocalcin 2 using siRNA was done to determine Stanniocalcin 2's biological roles.The level of Stanniocalcin 2 in cancer tissues was higher than in normal tissues (P = .0002). The high Stanniocalcin 2 expression group (n = 54) had more progressive lymph node metastasis (P = .07) and venous invasion (P = .028) than the low-expression group (n = 54). High Stanniocalcin 2 expression was an independent prognostic factor in gastric cancer patients (P = .02). Moreover, siRNA suppression of Stanniocalcin 2 in a gastric cancer cell line inhibited cellular proliferation (P  .05).The high expression level of Stanniocalcin 2 in gastric cancer tissues could be a very powerful marker of poor prognosis. Therefore, Stanniocalcin 2 is a promising candidate for a molecular target for the treatment of gastric cancer.

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