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Chinese Journal of Colorectal Diseases(Electronic Edition) ›› 2016, Vol. 05 ›› Issue (04): 328-332. doi: 10.3877/cma.j.issn.2095-3224.2016.04.010

Special Issue:

• Original Article • Previous Articles     Next Articles

Overexpression of RhoGDI2 protein correlates with tumor invasion and metastasis in colorectal cancer

Shoutang Lu1, Suifang Wu2, Meiling Jin3, Qilong Wang3, Yanan Zhen3, Huiyong Shi3, Chengjun Li3, Zhongfa Xu3,()   

  1. 1. School of Medicine and life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250200, China; Department of Gastrointestinal Surgery, Affiliated Hospital of Shandong Academy of Medical Sciences, Jinan 250031, China
    2. Department of Medical oncology, Shandong Tumor Hospital, Shandong 250117, China
    3. Department of Gastrointestinal Surgery, Affiliated Hospital of Shandong Academy of Medical Sciences, Jinan 250031, China
  • Received:2016-04-13 Online:2016-08-25 Published:2016-08-25
  • Contact: Zhongfa Xu
  • About author:
    Corresponding author: Xu Zhongfa, Email:

Abstract:

Objective

To detect the expression of Rho GDP dissociation inhibitor 2 (RhoGDI2) and analyze the function of RhoGDI2 in the colorectal cancer. To discuss the role of RhoGDI2 in the developmetal process of colorectal cancer.

Methods

Immunohistochemistry was used to detect RhoGDI2 protein in 153 cases of colorectal cancer and adjacent tissue specimens.

Results

Specimens from 153 cases of colorectal cancer were selected from Affiliated Hospital of Shandong Academy of Medical Sciences between July 2012 and July 2014. RhoGDI2 was expressed mainly in colorectal cancer, mainly in the cytoplasm. The positive rate of RhoGDI2 protien expression was significantly higher in cancer tissue than in normal colorectal tissue (57.5 % vs 0.00%). RhoGDI2 expression in colorectal cancer tissue with the low differentiation group was significantly higher than in the high and moderate differentiation group. The expression of RhoGDI2 protein in colorectal cancer was significantly correlated with tumor size (χ2=4.293, P<0.05), grade of differentiation (χ2=2.090, P<0.05), depth of invasion (χ2=1.711, P<0.05), lymph node metastasis (χ2=5.925, P<0.05), distant metastasis (χ2=5.519, P<0.05), and clinical stage (χ2=5.683, P<0.05). RhoGDI2 expression in colorectal cancer was no correlated with gender (χ2=0.037, P>0.05)、age (<60 years vs≥60 years) (χ2=0.054, P>0.05).

Conclusions

RhoGDI2 expression was positively correlated with the invasion and metastasis of colorectal cancer, and RhoGDI2 may play an important role in the occurrence and development of colorectal cancer.

Key words: Colorectal neoplasms, Neoplasm metastasis, Invasion, RhoGDI2

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