MicroRNA‑133b inhibits connective tissue growth factor in colorectal cancer and correlates with the clinical stage of the disease

  • Authors:
    • Yihang Guo
    • Xiaorong Li
    • Changwei Lin
    • Yi Zhang
    • Gui Hu
    • Jianyu Zhou
    • Juan Du
    • Kai Gao
    • Yi Gan
    • Hao Deng
  • View Affiliations

  • Published online on: December 10, 2014     https://doi.org/10.3892/mmr.2014.3075
  • Pages: 2805-2812
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Abstract

Accumulating evidence indicates that dysregulation of microRNA‑133b (miR‑133b) is an important step in the development of certain types of human cancer and contributes to tumorigenesis. Altered expression of miR‑133b has been reported in colon carcinoma, but its association with clinical stage in colorectal cancer (CRC) has remained elusive. Connective tissue growth factor (CTGF), a potentially promising candidate gene for interaction with miR‑133b, was screened using microarray analysis. The expression of miR‑133b and CTGF was evaluated using reverse transcription‑quantitative polymerase chain reaction and western blot analysis. The regulatory effects of miR‑133b on CTGF were evaluated using a dual‑luciferase reporter assay. CTGF was identified as a functional target of miR‑133b. The results demonstrated low expression of miR‑133b in CRC specimens with poor cell differentiation (P=0.011), lymph node metastasis (P=0.037) and advanced clinical stages (stage III or IV vs. I or II; P=0.036). Furthermore, there was a significant association between a high level of expression of CTGF mRNA and an advanced clinical stage (stage III or IV vs. I or II; P=0.015) and lymph node metastasis (P=0.034). CTGF expression was negatively regulated by miR‑133b in the human colorectum, suggesting that miR‑133b and CTGF may be candidate therapeutic targets in colorectal cancer.
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April-2015
Volume 11 Issue 4

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Guo Y, Li X, Lin C, Zhang Y, Hu G, Zhou J, Du J, Gao K, Gan Y, Deng H, Deng H, et al: MicroRNA‑133b inhibits connective tissue growth factor in colorectal cancer and correlates with the clinical stage of the disease. Mol Med Rep 11: 2805-2812, 2015
APA
Guo, Y., Li, X., Lin, C., Zhang, Y., Hu, G., Zhou, J. ... Deng, H. (2015). MicroRNA‑133b inhibits connective tissue growth factor in colorectal cancer and correlates with the clinical stage of the disease. Molecular Medicine Reports, 11, 2805-2812. https://doi.org/10.3892/mmr.2014.3075
MLA
Guo, Y., Li, X., Lin, C., Zhang, Y., Hu, G., Zhou, J., Du, J., Gao, K., Gan, Y., Deng, H."MicroRNA‑133b inhibits connective tissue growth factor in colorectal cancer and correlates with the clinical stage of the disease". Molecular Medicine Reports 11.4 (2015): 2805-2812.
Chicago
Guo, Y., Li, X., Lin, C., Zhang, Y., Hu, G., Zhou, J., Du, J., Gao, K., Gan, Y., Deng, H."MicroRNA‑133b inhibits connective tissue growth factor in colorectal cancer and correlates with the clinical stage of the disease". Molecular Medicine Reports 11, no. 4 (2015): 2805-2812. https://doi.org/10.3892/mmr.2014.3075