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Article

microRNA‑22 acts as a metastasis suppressor by targeting metadherin in gastric cancer

  • Authors:
    • Yunyun Tang
    • Xiaoping Liu
    • Bo Su
    • Zhiwei Zhang
    • Xi Zeng
    • Yanping Lei
    • Jian Shan
    • Yongjun Wu
    • Hailin Tang
    • Qi Su
  • View Affiliations / Copyright

    Affiliations: Center for Gastric Cancer Research of Hunan Province, First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China, Sun Yat‑Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong 510060, P.R. China, Cancer Research Institute, University of South China, Key Laboratory of Cancer Cellular and Molecular Pathology of Hunan Provincial University, Hengyang, Hunan 421001, P.R. China
  • Pages: 454-460
    |
    Published online on: October 16, 2014
       https://doi.org/10.3892/mmr.2014.2682
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Abstract

microRNA (miR)‑22 has been reported to be downregulated in hepatocellular, lung, colorectal, ovarian and breast cancer, acting as a tumor suppressor. The present study investigated the potential effects of miR‑22 on gastric cancer invasion and metastasis and the molecular mechanism. miR‑22 expression was examined in tumor tissues of in 89 gastric cancer patients by in situ hybridization (ISH) analysis. Additionally, the association between miR‑22 levels and clinicopathological parameters was analyzed. A luciferase assay was conducted for target identification. The ability of invasion and metastasis of gastric cancer cells in vitro and in vivo was evaluated by cell migration and invasion assays and in a xenograft model. The results showed that miR‑22 was downregulated in the gastric cancer specimens and significantly correlated with the advanced clinical stage and lymph node metastasis. In addition, metadherin (MTDH) was shown to be a direct target of miR‑22 and the expression of MTDH was inversely correlated with miR‑22 expression in gastric cancer. Ectopic expression of miR‑22 suppressed cell invasion and metastasis in vitro and in vivo. The present study suggested that miR‑22 may be a valuable prognostic factor in gastric cancer. miR‑22 inhibited gastric cancer cell invasion and metastasis by directly targeting MTDH. The novel miR‑22/MTDH link confirmed in the present study provided a novel, potential therapeutic target for the treatment of gastric cancer.
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Copy and paste a formatted citation
Spandidos Publications style
Tang Y, Liu X, Su B, Zhang Z, Zeng X, Lei Y, Shan J, Wu Y, Tang H, Su Q, Su Q, et al: microRNA‑22 acts as a metastasis suppressor by targeting metadherin in gastric cancer. Mol Med Rep 11: 454-460, 2015.
APA
Tang, Y., Liu, X., Su, B., Zhang, Z., Zeng, X., Lei, Y. ... Su, Q. (2015). microRNA‑22 acts as a metastasis suppressor by targeting metadherin in gastric cancer. Molecular Medicine Reports, 11, 454-460. https://doi.org/10.3892/mmr.2014.2682
MLA
Tang, Y., Liu, X., Su, B., Zhang, Z., Zeng, X., Lei, Y., Shan, J., Wu, Y., Tang, H., Su, Q."microRNA‑22 acts as a metastasis suppressor by targeting metadherin in gastric cancer". Molecular Medicine Reports 11.1 (2015): 454-460.
Chicago
Tang, Y., Liu, X., Su, B., Zhang, Z., Zeng, X., Lei, Y., Shan, J., Wu, Y., Tang, H., Su, Q."microRNA‑22 acts as a metastasis suppressor by targeting metadherin in gastric cancer". Molecular Medicine Reports 11, no. 1 (2015): 454-460. https://doi.org/10.3892/mmr.2014.2682
Copy and paste a formatted citation
x
Spandidos Publications style
Tang Y, Liu X, Su B, Zhang Z, Zeng X, Lei Y, Shan J, Wu Y, Tang H, Su Q, Su Q, et al: microRNA‑22 acts as a metastasis suppressor by targeting metadherin in gastric cancer. Mol Med Rep 11: 454-460, 2015.
APA
Tang, Y., Liu, X., Su, B., Zhang, Z., Zeng, X., Lei, Y. ... Su, Q. (2015). microRNA‑22 acts as a metastasis suppressor by targeting metadherin in gastric cancer. Molecular Medicine Reports, 11, 454-460. https://doi.org/10.3892/mmr.2014.2682
MLA
Tang, Y., Liu, X., Su, B., Zhang, Z., Zeng, X., Lei, Y., Shan, J., Wu, Y., Tang, H., Su, Q."microRNA‑22 acts as a metastasis suppressor by targeting metadherin in gastric cancer". Molecular Medicine Reports 11.1 (2015): 454-460.
Chicago
Tang, Y., Liu, X., Su, B., Zhang, Z., Zeng, X., Lei, Y., Shan, J., Wu, Y., Tang, H., Su, Q."microRNA‑22 acts as a metastasis suppressor by targeting metadherin in gastric cancer". Molecular Medicine Reports 11, no. 1 (2015): 454-460. https://doi.org/10.3892/mmr.2014.2682
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