Open Access

KLF4 overexpression decreases the viability, invasion and migration of papillary thyroid cancer cells

  • Authors:
    • Qianzhu Wang
    • Jian Xu
    • Yong Chen
    • Limin Liu
  • View Affiliations

  • Published online on: September 2, 2019     https://doi.org/10.3892/etm.2019.7969
  • Pages: 3493-3501
  • Copyright: © Wang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Kruppel‑like factor 4 (KLF4) has been implicated in a number of different types of cancer; however, the role of KLF4 in papillary thyroid cancer remains elusive. The present study aimed to investigate the role of KLF4 in papillary thyroid cancer and its potential underlying molecular mechanisms. The expression of KLF4 in thyroid tumor tissue and adjacent non‑cancerous tissues were detected via immunohistochemistry and western blotting. The papillary thyroid cancer cell line, KTC1, was transfected with viruses carrying KLF4 overexpression vectors. The relative expression of KLF4, E‑cadherin, N‑cadherin, Vimentin, matrix metalloproteinase (MMP)2, MMP9 and collagen was detected via quantitative‑PCR. The viability of KTC1 cells was detected using a cell counting kit‑8 assay at 24, 48 and 72 h. Cell invasion was examined via a transwell invasion assay. Cell migration was examined via a scratch migration assay at 0 and 24 h. Compared with adjacent non‑cancerous tissues, the expression of KLF4 was significantly lower in thyroid tumor tissues. The expression of KLF4 in KTC1 cells were significantly increased compared with the blank or negative control groups. The expression of N‑cadherin, MMP2, MMP9 and collagen was significantly decreased in the KLF4 overexpression group. The viability of KTC1 cells was markedly decreased in KLF4 overexpression group at 24, 48 and 72 h when compared with the blank or negative control groups. The invasion of KTC1 cells in the KLF4 overexpression group was markedly decreased. Compared with the negative control group, the KTC1 cell migration in the KLF4 overexpression group was markedly decreased at 24 h. The expression of KLF4 was also significantly lower in thyroid tumor tissues. The cell viability, tumor invasion and migration ability and expression levels of N‑cadherin, MMP2, MMP9 and collagen in papillary thyroid cancer cells were markedly decreased with KLF4 overexpression.
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November-2019
Volume 18 Issue 5

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Wang Q, Xu J, Chen Y and Liu L: KLF4 overexpression decreases the viability, invasion and migration of papillary thyroid cancer cells. Exp Ther Med 18: 3493-3501, 2019.
APA
Wang, Q., Xu, J., Chen, Y., & Liu, L. (2019). KLF4 overexpression decreases the viability, invasion and migration of papillary thyroid cancer cells. Experimental and Therapeutic Medicine, 18, 3493-3501. https://doi.org/10.3892/etm.2019.7969
MLA
Wang, Q., Xu, J., Chen, Y., Liu, L."KLF4 overexpression decreases the viability, invasion and migration of papillary thyroid cancer cells". Experimental and Therapeutic Medicine 18.5 (2019): 3493-3501.
Chicago
Wang, Q., Xu, J., Chen, Y., Liu, L."KLF4 overexpression decreases the viability, invasion and migration of papillary thyroid cancer cells". Experimental and Therapeutic Medicine 18, no. 5 (2019): 3493-3501. https://doi.org/10.3892/etm.2019.7969