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MicroRNA‑203a‑3p is a candidate tumor suppressor that targets thrombospondin 2 in colorectal carcinoma

  • Authors:
    • Zhenyuan Qian
    • Lijie Gong
    • Yiping Mou
    • Yong Han
    • Shusen Zheng
  • View Affiliations / Copyright

    Affiliations: Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, P.R. China, Department of Breast Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, P.R. China, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China, Clinical Research Institute of Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
    Copyright: © Qian et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 1825-1832
    |
    Published online on: September 12, 2019
       https://doi.org/10.3892/or.2019.7310
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Abstract

The aim of the present study was to investigate the role of miR‑203a‑3p in colorectal cancer (CRC) and identify the target gene of microRNA (miR)‑203a‑3p. A total of 59 sets of cancer tissues and corresponding adjacent non‑tumor tissues were collected from CRC patients (aged 31‑78 years) between October 2016 and May 2017. Total RNA extraction and reverse transcription‑quantitative polymerase chain reaction analysis, transfection assay, and Transwell and apoptosis assays, western blot analysis, a luciferase reporter assay and immunohistochemistry were performed. miR‑203a‑3p was found to be significantly downregulated in CRC tissues compared with adjacent normal tissues. The overexpression of miR‑203a‑3p was shown to inhibit the invasion and migration of human CRC SW480 and HT29 cells, and increase their apoptosis rates. Furthermore, miR‑203a‑3p downregulated the expression of thrombospondin 2 (THBS2) in SW480 and HT29 cells. It was also experimentally demonstrated that miR‑203a‑3p binds to the 3'‑untranslated region of THBS2, downregulating THBS2 expression and thereby inhibiting CRC progression and metastasis. The expression of miR‑203a‑3p, which serves a tumor‑suppressive role, in CRC tissues was significantly downregulated. As miR‑203a‑3p was determined to target THBS2 to inhibit CRC progression and metastasis; thus, miR‑203a‑3p may be considered as a potential novel approach to treating CRC.
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Copy and paste a formatted citation
Spandidos Publications style
Qian Z, Gong L, Mou Y, Han Y and Zheng S: MicroRNA‑203a‑3p is a candidate tumor suppressor that targets thrombospondin 2 in colorectal carcinoma. Oncol Rep 42: 1825-1832, 2019.
APA
Qian, Z., Gong, L., Mou, Y., Han, Y., & Zheng, S. (2019). MicroRNA‑203a‑3p is a candidate tumor suppressor that targets thrombospondin 2 in colorectal carcinoma. Oncology Reports, 42, 1825-1832. https://doi.org/10.3892/or.2019.7310
MLA
Qian, Z., Gong, L., Mou, Y., Han, Y., Zheng, S."MicroRNA‑203a‑3p is a candidate tumor suppressor that targets thrombospondin 2 in colorectal carcinoma". Oncology Reports 42.5 (2019): 1825-1832.
Chicago
Qian, Z., Gong, L., Mou, Y., Han, Y., Zheng, S."MicroRNA‑203a‑3p is a candidate tumor suppressor that targets thrombospondin 2 in colorectal carcinoma". Oncology Reports 42, no. 5 (2019): 1825-1832. https://doi.org/10.3892/or.2019.7310
Copy and paste a formatted citation
x
Spandidos Publications style
Qian Z, Gong L, Mou Y, Han Y and Zheng S: MicroRNA‑203a‑3p is a candidate tumor suppressor that targets thrombospondin 2 in colorectal carcinoma. Oncol Rep 42: 1825-1832, 2019.
APA
Qian, Z., Gong, L., Mou, Y., Han, Y., & Zheng, S. (2019). MicroRNA‑203a‑3p is a candidate tumor suppressor that targets thrombospondin 2 in colorectal carcinoma. Oncology Reports, 42, 1825-1832. https://doi.org/10.3892/or.2019.7310
MLA
Qian, Z., Gong, L., Mou, Y., Han, Y., Zheng, S."MicroRNA‑203a‑3p is a candidate tumor suppressor that targets thrombospondin 2 in colorectal carcinoma". Oncology Reports 42.5 (2019): 1825-1832.
Chicago
Qian, Z., Gong, L., Mou, Y., Han, Y., Zheng, S."MicroRNA‑203a‑3p is a candidate tumor suppressor that targets thrombospondin 2 in colorectal carcinoma". Oncology Reports 42, no. 5 (2019): 1825-1832. https://doi.org/10.3892/or.2019.7310
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