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Ku80 gene knockdown by the CRISPR/Cas9 technique affects the biological functions of human thyroid carcinoma cells

  • Authors:
    • Yali Fan
    • Jianying Li
    • Wei Wei
    • Hangrong Fang
    • Ying Duan
    • Namiao Li
    • Yingying Zhang
    • Jun Yu
    • Juanhong Wang
  • View Affiliations / Copyright

    Affiliations: Department of Respiratory Medicine, Xi'an Central Hospital, The Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710003, P.R. China, Department of Pathology, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Xi'an, Shaanxi 710018, P.R. China, Department of Emergency, Xi'an Central Hospital, The Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710003, P.R. China
    Copyright: © Fan et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 2486-2498
    |
    Published online on: October 1, 2019
       https://doi.org/10.3892/or.2019.7348
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Abstract

In the present study, to evaluate the role of Ku80 in thyroid carcinoma (TC), 86 thyroid tissue samples from patients with a spectrum of thyroid disorders were examined for protein levels of Ku80, nuclear factor‑κB (NF‑κB) and RET/TC by immunohistochemistry. Furthermore, in TC cells, Ku80 mRNA was detected by reverse transcription‑quantitative PCR analysis and silenced using the clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR‑associated protein 9 (Cas9) technique to assess its role. An antibody array was used to identify Ku80‑related regulatory genes. The protein levels of Ku80 in the TC tissues were significantly higher than those in non‑neoplastic adjacent tissue samples (P<0.01). The activation of NF‑kB and expression of RET/TC in the TC group were significantly increased (P<0.05) and were correlated with the protein expression of Ku80 (P<0.05). In papillary TC cells, the mRNA levels of Ku80 were high; Ku80 knockdown resulted in reductions in proliferation, invasion and colony formation, increased apoptosis, and reduced levels of proteins involved in MAPK signaling, cell proliferation and apoptosis. The high expression of Ku80 in TC was found to be associated with the expression of RET/TC and activation of NF‑κB, and Ku80 knockdown decreased the malignancy of TC cells.
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Copy and paste a formatted citation
Spandidos Publications style
Fan Y, Li J, Wei W, Fang H, Duan Y, Li N, Zhang Y, Yu J and Wang J: Ku80 gene knockdown by the CRISPR/Cas9 technique affects the biological functions of human thyroid carcinoma cells. Oncol Rep 42: 2486-2498, 2019.
APA
Fan, Y., Li, J., Wei, W., Fang, H., Duan, Y., Li, N. ... Wang, J. (2019). Ku80 gene knockdown by the CRISPR/Cas9 technique affects the biological functions of human thyroid carcinoma cells. Oncology Reports, 42, 2486-2498. https://doi.org/10.3892/or.2019.7348
MLA
Fan, Y., Li, J., Wei, W., Fang, H., Duan, Y., Li, N., Zhang, Y., Yu, J., Wang, J."Ku80 gene knockdown by the CRISPR/Cas9 technique affects the biological functions of human thyroid carcinoma cells". Oncology Reports 42.6 (2019): 2486-2498.
Chicago
Fan, Y., Li, J., Wei, W., Fang, H., Duan, Y., Li, N., Zhang, Y., Yu, J., Wang, J."Ku80 gene knockdown by the CRISPR/Cas9 technique affects the biological functions of human thyroid carcinoma cells". Oncology Reports 42, no. 6 (2019): 2486-2498. https://doi.org/10.3892/or.2019.7348
Copy and paste a formatted citation
x
Spandidos Publications style
Fan Y, Li J, Wei W, Fang H, Duan Y, Li N, Zhang Y, Yu J and Wang J: Ku80 gene knockdown by the CRISPR/Cas9 technique affects the biological functions of human thyroid carcinoma cells. Oncol Rep 42: 2486-2498, 2019.
APA
Fan, Y., Li, J., Wei, W., Fang, H., Duan, Y., Li, N. ... Wang, J. (2019). Ku80 gene knockdown by the CRISPR/Cas9 technique affects the biological functions of human thyroid carcinoma cells. Oncology Reports, 42, 2486-2498. https://doi.org/10.3892/or.2019.7348
MLA
Fan, Y., Li, J., Wei, W., Fang, H., Duan, Y., Li, N., Zhang, Y., Yu, J., Wang, J."Ku80 gene knockdown by the CRISPR/Cas9 technique affects the biological functions of human thyroid carcinoma cells". Oncology Reports 42.6 (2019): 2486-2498.
Chicago
Fan, Y., Li, J., Wei, W., Fang, H., Duan, Y., Li, N., Zhang, Y., Yu, J., Wang, J."Ku80 gene knockdown by the CRISPR/Cas9 technique affects the biological functions of human thyroid carcinoma cells". Oncology Reports 42, no. 6 (2019): 2486-2498. https://doi.org/10.3892/or.2019.7348
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