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Article Open Access

miR-149-5p inhibits cell proliferation and invasion through targeting GIT1 in medullary thyroid carcinoma

  • Authors:
    • Xiaojuan Ye
    • Xiaofang Chen
  • View Affiliations / Copyright

    Affiliations: Department of Nuclear Medicine, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
  • Pages: 372-378
    |
    Published online on: October 26, 2018
       https://doi.org/10.3892/ol.2018.9628
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Abstract

Previous studies indicate that miR-149 could both inhibit and promote the development of human cancer depending on the tumor type. GIT1 was found to play an important role in regulating cell migration. However, the specific function of miR-149-5p and GIT1 in the progression of medullary thyroid carcinoma (MTC) remains unknown. The purpose of this study was to confirm the function of miR-149-5p in MTC and explore its downstream regulation. Moreover, miR-149-5p level in MTC was detected via RT-quantitative PCR (RT-qPCR). GIT1 expression levels were assessed by RT-qPCR and western blot analysis. The cell proliferation and invasion were detected through MTT or Transwell assay respectively. In addition, miR-149-5p was identified to directly target GIT1 in MTC via dual luciferase assay. The results suggested that miR‑149-5p level was obviously declined in MTC. Functionally, miR-149-5p overexpression inhibited proliferation and invasion. Moreover, miR-149-5p directly targeted GIT1 and was negatively associated with its expression in MTC. Conversely, GIT1 expression was obviously increased in MTC. GIT1 overexpression partially reversed the inhibitory action of miR-149-5p in MTC. miR‑149-5p suppressed the proliferation and invasion of MTC cells through targeting GIT1, which would create new therapeutic avenues for MTC treatment.
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Copy and paste a formatted citation
Spandidos Publications style
Ye X and Chen X: miR-149-5p inhibits cell proliferation and invasion through targeting GIT1 in medullary thyroid carcinoma. Oncol Lett 17: 372-378, 2019.
APA
Ye, X., & Chen, X. (2019). miR-149-5p inhibits cell proliferation and invasion through targeting GIT1 in medullary thyroid carcinoma. Oncology Letters, 17, 372-378. https://doi.org/10.3892/ol.2018.9628
MLA
Ye, X., Chen, X."miR-149-5p inhibits cell proliferation and invasion through targeting GIT1 in medullary thyroid carcinoma". Oncology Letters 17.1 (2019): 372-378.
Chicago
Ye, X., Chen, X."miR-149-5p inhibits cell proliferation and invasion through targeting GIT1 in medullary thyroid carcinoma". Oncology Letters 17, no. 1 (2019): 372-378. https://doi.org/10.3892/ol.2018.9628
Copy and paste a formatted citation
x
Spandidos Publications style
Ye X and Chen X: miR-149-5p inhibits cell proliferation and invasion through targeting GIT1 in medullary thyroid carcinoma. Oncol Lett 17: 372-378, 2019.
APA
Ye, X., & Chen, X. (2019). miR-149-5p inhibits cell proliferation and invasion through targeting GIT1 in medullary thyroid carcinoma. Oncology Letters, 17, 372-378. https://doi.org/10.3892/ol.2018.9628
MLA
Ye, X., Chen, X."miR-149-5p inhibits cell proliferation and invasion through targeting GIT1 in medullary thyroid carcinoma". Oncology Letters 17.1 (2019): 372-378.
Chicago
Ye, X., Chen, X."miR-149-5p inhibits cell proliferation and invasion through targeting GIT1 in medullary thyroid carcinoma". Oncology Letters 17, no. 1 (2019): 372-378. https://doi.org/10.3892/ol.2018.9628
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