KLF8 knockdown suppresses proliferation and invasion in human osteosarcoma cells

Lin,Feng; Shen,Zan; Tang,Li‑Na; Zheng,Shui‑Er; Sun,Yuan‑Jue; Min,Da‑Liu; Yao,Yang

doi:10.3892/mmr.2014.2027

KLF8 knockdown suppresses proliferation and invasion in human osteosarcoma cells

Authors:
- Feng Lin
- Zan Shen
- Li‑Na Tang
- Shui‑Er Zheng
- Yuan‑Jue Sun
- Da‑Liu Min
- Yang Yao
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Affiliations: Graduate School of Medicine, Soochow University, Suzhou, Jiangsu 215006, P.R. China, Department of Oncology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
Published online on: March 7, 2014 https://doi.org/10.3892/mmr.2014.2027
Pages: 1613-1617
Copyright: © Lin et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].

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Abstract

Krüppel‑like factor 8 (KLF8) is a transcription factor that is important in the regulation of the cell cycle and has a critical role in oncogenic transformation and epithelial to mesenchymal transition (EMT). EMT is a key process in tumor metastasis. Although overexpression of KLF8 has been observed in a variety of human tumor types, the role of KLF8 in human osteosarcoma is yet to be elucidated. The present study aimed to investigate the biological impact of KLF8 on Saos‑2 osteosarcoma cells. KLF8 gene expression was knocked down in vitro using a lentivirus‑mediated small interfering (si)RNA method. Cell proliferation and cell cycle distribution were evaluated using 3-(4,5)-dimethylthiahiazo(‑z-yl)-3,5-di-phenytetrazoliumromide and colony formation assays, and flow cytometry, respectively. Cell invasion was analyzed using a Transwell® invasion assay. Knockdown of KLF8 was found to significantly inhibit proliferation and invasion in osteosarcoma cells. These data suggest that KLF8 may exhibit an important role in osteosarcoma tumorigenesis and that KLF8 may be a potential therapeutic target for the treatment of osteosarcoma.

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