Reduced expression of Rho GDP dissociation inhibitor 2 mRNA is associated with lymph node metastasis in gastric carcinoma

  • Authors:
    • Atsuo Shida
    • Shuichi Fujioka
    • Naoto Takahashi
    • Hiroaki Aoki
    • Tomoyoshi Okamoto
    • Norio Mitsumori
    • Nobuo Omura
    • Katsuhiko Yanaga
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  • Published online on: June 6, 2013     https://doi.org/10.3892/ol.2013.1379
  • Pages: 463-467
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Abstract

Small GTPase proteins, including RhoA, RhoB, RhoC, Rac1 and cdc42, are molecules that have significant roles in linking cell shape and cell cycle progression in cytoskeletal arrangements and mitogenic signaling. Rho GDP dissociation inhibitor 2 (RhoGDI2) has recently been identified as a metastasis suppressor gene in models of bladder cancer. RhoGDI2 has also been identified as a potential regulator of tumorigenesis and cancer progression. The present study aimed to clarify the significance of RhoGDI2 gene expression in gastric carcinoma and to evaluate the outcome of affected patients. A total of 46 pairs of normal mucosa and cancer specimens were obtained from patients who had undergone a gastrectomy for primary gastric carcinoma and were subjected to semi‑quantitative reverse transcription polymerase chain reaction (RT‑PCR) for RhoGDI2. The expression of RhoGDI2 mRNA was significantly higher in early‑stage gastric cancer specimens compared with the normal gastric epithelium samples. By contrast, the depth of the tumor was negatively correlated with RhoGDI2 mRNA expression. In addition, a reduced expression of RhoGDI2 mRNA was associated with venous system invasion and lymph node metastasis. RhoGDI2 mRNA was more frequently expressed in differentiated adenocarcinoma compared with poorly‑differentiated adenocarcinoma. Although the statistical significance was not established, RhoGDI2‑positive patients tended to have a superior oncological outcome compared with RhoGDI2‑negative patients. The reduced expression of RhoGDI2 mRNA in gastric carcinoma is associated with venous system invasion and lymph node metastasis.
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August 2013
Volume 6 Issue 2

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Shida A, Fujioka S, Takahashi N, Aoki H, Okamoto T, Mitsumori N, Omura N and Yanaga K: Reduced expression of Rho GDP dissociation inhibitor 2 mRNA is associated with lymph node metastasis in gastric carcinoma. Oncol Lett 6: 463-467, 2013
APA
Shida, A., Fujioka, S., Takahashi, N., Aoki, H., Okamoto, T., Mitsumori, N. ... Yanaga, K. (2013). Reduced expression of Rho GDP dissociation inhibitor 2 mRNA is associated with lymph node metastasis in gastric carcinoma. Oncology Letters, 6, 463-467. https://doi.org/10.3892/ol.2013.1379
MLA
Shida, A., Fujioka, S., Takahashi, N., Aoki, H., Okamoto, T., Mitsumori, N., Omura, N., Yanaga, K."Reduced expression of Rho GDP dissociation inhibitor 2 mRNA is associated with lymph node metastasis in gastric carcinoma". Oncology Letters 6.2 (2013): 463-467.
Chicago
Shida, A., Fujioka, S., Takahashi, N., Aoki, H., Okamoto, T., Mitsumori, N., Omura, N., Yanaga, K."Reduced expression of Rho GDP dissociation inhibitor 2 mRNA is associated with lymph node metastasis in gastric carcinoma". Oncology Letters 6, no. 2 (2013): 463-467. https://doi.org/10.3892/ol.2013.1379