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Article

Interference of Skp2 effectively inhibits the development and metastasis of colon carcinoma

  • Authors:
    • Haijin Chen
    • Xiaodong Mo
    • Jinlong Yu
    • Shuxin Huang
    • Zonghai Huang
    • Liping Gao
  • View Affiliations / Copyright

    Affiliations: Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, P.R. China, Department of Gastrointestinal Surgery, PLA No. 101 Hospital, Wuxi, Jiangsu 214044, P.R. China, Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, P.R. China
  • Pages: 1129-1135
    |
    Published online on: June 10, 2014
       https://doi.org/10.3892/mmr.2014.2308
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Abstract

Colon cancer is a common type of malignancy in the digestive system. The aim of the present study was to investigate the role of S-phase kinase-associated protein 2 (Skp2) in colon carcinoma and to identify whether depletion of Skp2 by Skp2‑RNA interference (RNAi) attenuates the proliferation and migration of colon carcinoma. Three pairs of small interfering (si)RNA were designed based on the Skp2 gene sequence and the most effective one was used to silence the Skp2 gene in SW620 cells. Subsequent to the interference, quantitative polymerase chain reaction and western blot analysis were used for detecting the expression of Skp-2 mRNA and protein, respectively. The data demonstrated that the Skp2‑siRNA effectively inhibited proliferation (P<0.01), increased the levels of apoptosis and induced G0/G1 phase arrest of the SW620 cells (P<0.01). Transfection of the Skp2 siRNA into SW620 cells effectively reduced Skp2 protein levels, while p27 protein levels increased. In the in vivo experiments, a lentiviral vector of the Skp2-RNAi transfected into SW620 cells markedly inhibited Skp2 expression, as detected by immunohistochemical analysis of nude mice. Additionally, tumorigenicity experiments showed that inhibition of Skp2 significantly increased the survival rate of nude mice. Thus, the in vitro and in vivo results demonstrated that interference of Skp2 expression significantly inhibited the proliferation and induced the apoptosis of SW620 cells. This suggests that Skp2 protein has an important role in the progression of colon cancer. Therefore, Skp2 may enable the early diagnosis of colon cancer and provide new insights into molecular targets for cancer therapy.
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Copy and paste a formatted citation
Spandidos Publications style
Chen H, Mo X, Yu J, Huang S, Huang Z and Gao L: Interference of Skp2 effectively inhibits the development and metastasis of colon carcinoma. Mol Med Rep 10: 1129-1135, 2014.
APA
Chen, H., Mo, X., Yu, J., Huang, S., Huang, Z., & Gao, L. (2014). Interference of Skp2 effectively inhibits the development and metastasis of colon carcinoma. Molecular Medicine Reports, 10, 1129-1135. https://doi.org/10.3892/mmr.2014.2308
MLA
Chen, H., Mo, X., Yu, J., Huang, S., Huang, Z., Gao, L."Interference of Skp2 effectively inhibits the development and metastasis of colon carcinoma". Molecular Medicine Reports 10.2 (2014): 1129-1135.
Chicago
Chen, H., Mo, X., Yu, J., Huang, S., Huang, Z., Gao, L."Interference of Skp2 effectively inhibits the development and metastasis of colon carcinoma". Molecular Medicine Reports 10, no. 2 (2014): 1129-1135. https://doi.org/10.3892/mmr.2014.2308
Copy and paste a formatted citation
x
Spandidos Publications style
Chen H, Mo X, Yu J, Huang S, Huang Z and Gao L: Interference of Skp2 effectively inhibits the development and metastasis of colon carcinoma. Mol Med Rep 10: 1129-1135, 2014.
APA
Chen, H., Mo, X., Yu, J., Huang, S., Huang, Z., & Gao, L. (2014). Interference of Skp2 effectively inhibits the development and metastasis of colon carcinoma. Molecular Medicine Reports, 10, 1129-1135. https://doi.org/10.3892/mmr.2014.2308
MLA
Chen, H., Mo, X., Yu, J., Huang, S., Huang, Z., Gao, L."Interference of Skp2 effectively inhibits the development and metastasis of colon carcinoma". Molecular Medicine Reports 10.2 (2014): 1129-1135.
Chicago
Chen, H., Mo, X., Yu, J., Huang, S., Huang, Z., Gao, L."Interference of Skp2 effectively inhibits the development and metastasis of colon carcinoma". Molecular Medicine Reports 10, no. 2 (2014): 1129-1135. https://doi.org/10.3892/mmr.2014.2308
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