Open Access

Histone deacetylase enzyme silencing using shRNAs enhances radiosensitivity of SW579 thyroid cancer cells

  • Authors:
    • Ye Wang
    • Tao Jin
    • Xueming Dai
    • Dongwang Yan
    • Zhihai Peng
  • View Affiliations

  • Published online on: September 5, 2016     https://doi.org/10.3892/mmr.2016.5711
  • Pages: 3509-3516
  • Copyright: © Wang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The aim of the present study was to screen the enzymes that are associated with the radiosensitivity of SW579 thyroid cancer cells, and investigate whether radiation, combined with specific RNA interference on the screened enzymes, enhances radiosensitivity of SW579 thyroid cancer cells. Quantitative polymerase chain reaction (qPCR) was used to analyze epigenetic enzyme expression changes before and after radiotherapy, and four enzymes, histone deacetylase 1 (HDAC1), HDAC2, HDAC4 and HDAC6 were screened. Western blot analysis was performed to analyze the change in HDAC1, HDAC2, HDAC4 and HDAC6 protein expression following radiotherapy. Short hairpin RNA (ShRNA)‑HDAC1, shRNA‑HDAC2, shRNA‑HDAC4 and shRNA‑HDAC6 plasmids were constructed and SW579 cells were transfected with corresponding shRNA‑HDACs. Reverse transcription‑qPCR was used to detect whether downregulation of HDAC mRNAs had been effective. In addition, shRNA and shRNA negative control (NC) pools were established and transfected into the SW579 cells. The samples were divided into four groups; control, trichostatin A, shRNA pool and shRNA NC pool, to analyze the effective enhancement of specific shRNA on radiosensitivity in thyroid cancer cells. The morphological changes were observed in the SW579 cells, and the number of tumor cells decreased markedly in the shRNA pool group compared with that of the other three groups. Therefore, it was concluded that HDACs present a potential target for increasing the sensitivity of thyroid cancer cells to radiotherapy, and shRNA‑HDAC interference combined with radiotherapy promotes the radiosensitivity of tumors.
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October-2016
Volume 14 Issue 4

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Wang Y, Jin T, Dai X, Yan D and Peng Z: Histone deacetylase enzyme silencing using shRNAs enhances radiosensitivity of SW579 thyroid cancer cells. Mol Med Rep 14: 3509-3516, 2016
APA
Wang, Y., Jin, T., Dai, X., Yan, D., & Peng, Z. (2016). Histone deacetylase enzyme silencing using shRNAs enhances radiosensitivity of SW579 thyroid cancer cells. Molecular Medicine Reports, 14, 3509-3516. https://doi.org/10.3892/mmr.2016.5711
MLA
Wang, Y., Jin, T., Dai, X., Yan, D., Peng, Z."Histone deacetylase enzyme silencing using shRNAs enhances radiosensitivity of SW579 thyroid cancer cells". Molecular Medicine Reports 14.4 (2016): 3509-3516.
Chicago
Wang, Y., Jin, T., Dai, X., Yan, D., Peng, Z."Histone deacetylase enzyme silencing using shRNAs enhances radiosensitivity of SW579 thyroid cancer cells". Molecular Medicine Reports 14, no. 4 (2016): 3509-3516. https://doi.org/10.3892/mmr.2016.5711