Open Access

Knockdown of Ski decreases osteosarcoma cell proliferation and migration by suppressing the PI3K/Akt signaling pathway

  • Authors:
    • Xin Zhao
    • Yuying Fang
    • Xingwen Wang
    • Zhouyuan Yang
    • Donghai Li
    • Meng Tian
    • Pengde Kang
  • View Affiliations

  • Published online on: November 14, 2019     https://doi.org/10.3892/ijo.2019.4914
  • Pages: 206-218
  • Copyright: © Zhao et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 4.0].

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Abstract

Ski, an evolutionary conserved protein, is involved in the development of a number of tumors, such as Barrett's esophagus, leukemia, colorectal cancer, gastric cancer, pancreatic cancer, hemangiomas and melanoma. However, studies on the functions of Ski in osteosarcoma (OS) are limited. In this study, firstly the differential expression of Ski in OS tissues and osteochondroma tissues was detected, and the expression of Ski in both human OS cell lines (MG63 and U2OS) and normal osteoblasts (hFoB1.19) was then detected. The results demonstrated that Ski expression was significantly upregulated in both human OS tissues and cell lines. The results led us to hypothesize that Ski may play an essential role in the pathological process of OS. Thus, Ski specific small interfere RNA (Ski‑siRNA) was used. The results revealed that OS cell proliferation was markedly inhibited following the knockdown of Ski, which was identified by CCK8 assay, EdU staining and cell cycle analysis. In addition, OS cell migration was significantly suppressed following Ski knockdown, which was identified by wound healing assay. Moreover, the protein levels of p‑PI3K and p‑Akt in OS cells declined prominently following Ski knockdown. On the whole, the findings of this study revealed that Ski expression was significantly upregulated in OS tissue and OS cells. The knockdown of Ski decreased OS cell proliferation and migration, which was mediated by blocking the PI3K/Akt signaling pathway. Thus, Ski may act as a tumor promoter gene in tumorigenesis, and Ski may prove to be a potential therapeutic target for the treatment of OS.
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January-2020
Volume 56 Issue 1

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Online ISSN:1791-2423

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Spandidos Publications style
Zhao X, Fang Y, Wang X, Yang Z, Li D, Tian M and Kang P: Knockdown of Ski decreases osteosarcoma cell proliferation and migration by suppressing the PI3K/Akt signaling pathway. Int J Oncol 56: 206-218, 2020.
APA
Zhao, X., Fang, Y., Wang, X., Yang, Z., Li, D., Tian, M., & Kang, P. (2020). Knockdown of Ski decreases osteosarcoma cell proliferation and migration by suppressing the PI3K/Akt signaling pathway. International Journal of Oncology, 56, 206-218. https://doi.org/10.3892/ijo.2019.4914
MLA
Zhao, X., Fang, Y., Wang, X., Yang, Z., Li, D., Tian, M., Kang, P."Knockdown of Ski decreases osteosarcoma cell proliferation and migration by suppressing the PI3K/Akt signaling pathway". International Journal of Oncology 56.1 (2020): 206-218.
Chicago
Zhao, X., Fang, Y., Wang, X., Yang, Z., Li, D., Tian, M., Kang, P."Knockdown of Ski decreases osteosarcoma cell proliferation and migration by suppressing the PI3K/Akt signaling pathway". International Journal of Oncology 56, no. 1 (2020): 206-218. https://doi.org/10.3892/ijo.2019.4914