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Article

miR‑202 acts as a potential tumor suppressor in breast cancer

  • Authors:
    • Shanshan Gao
    • Chunfang Cao
    • Qingfu Dai
    • Jian Chen
    • Jiancheng Tu
  • View Affiliations / Copyright

    Affiliations: Department of Laboratory Medicine, Clinical Laboratory Medicine and Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China, Central Laboratory, Longyan First Hospital Affiliated to Fujian Medical University, Longyan, Fujian 364000, P.R. China
  • Pages: 1155-1162
    |
    Published online on: May 16, 2018
       https://doi.org/10.3892/ol.2018.8726
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Abstract

Breast cancer affects ~10% of women worldwide and is responsible for ~12% of all cancer‑associated mortalities. Breast cancer is more prone to metastasis compared with other types of cancer. Up to 5% of patients with breast cancer present with incurable metastasis and an additional 10‑15% of patients develop metastases within 3 years of their initial diagnosis. MicroRNAs (miRNAs) are short RNAs, 21‑25 nucleotides in length, that have been shown to significantly affect gene expression. In total >2,000 miRNAs have been identified and specific miRNAs have been revealed to be associated with cancer. In the present study, we observed that the majority of breast cancer specimens collected expressed low levels of miR‑202 compared with adjacent tissues and normal cell lines. Mechanistic investigations identified KRAS as a potential target gene of miR‑202 and it was demonstrated that miR‑202 exerted its tumor‑suppressive effects by regulating the expression of KRAS in breast cancer cells. Functional assays revealed that miR‑202 significantly reduced cell proliferation, migration and invasion in vitro. In summary, these results indicate the function of miR‑202 in breast cancer progression and suggest that its use within breast cancer therapy is promising.
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Copy and paste a formatted citation
Spandidos Publications style
Gao S, Cao C, Dai Q, Chen J and Tu J: miR‑202 acts as a potential tumor suppressor in breast cancer. Oncol Lett 16: 1155-1162, 2018.
APA
Gao, S., Cao, C., Dai, Q., Chen, J., & Tu, J. (2018). miR‑202 acts as a potential tumor suppressor in breast cancer. Oncology Letters, 16, 1155-1162. https://doi.org/10.3892/ol.2018.8726
MLA
Gao, S., Cao, C., Dai, Q., Chen, J., Tu, J."miR‑202 acts as a potential tumor suppressor in breast cancer". Oncology Letters 16.1 (2018): 1155-1162.
Chicago
Gao, S., Cao, C., Dai, Q., Chen, J., Tu, J."miR‑202 acts as a potential tumor suppressor in breast cancer". Oncology Letters 16, no. 1 (2018): 1155-1162. https://doi.org/10.3892/ol.2018.8726
Copy and paste a formatted citation
x
Spandidos Publications style
Gao S, Cao C, Dai Q, Chen J and Tu J: miR‑202 acts as a potential tumor suppressor in breast cancer. Oncol Lett 16: 1155-1162, 2018.
APA
Gao, S., Cao, C., Dai, Q., Chen, J., & Tu, J. (2018). miR‑202 acts as a potential tumor suppressor in breast cancer. Oncology Letters, 16, 1155-1162. https://doi.org/10.3892/ol.2018.8726
MLA
Gao, S., Cao, C., Dai, Q., Chen, J., Tu, J."miR‑202 acts as a potential tumor suppressor in breast cancer". Oncology Letters 16.1 (2018): 1155-1162.
Chicago
Gao, S., Cao, C., Dai, Q., Chen, J., Tu, J."miR‑202 acts as a potential tumor suppressor in breast cancer". Oncology Letters 16, no. 1 (2018): 1155-1162. https://doi.org/10.3892/ol.2018.8726
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