Open Access

TIPE‑2 suppresses growth and aggressiveness of hepatocellular carcinoma cells through downregulation of the phosphoinositide 3‑kinase/AKT signaling pathway

  • Authors:
    • Lin Wang
    • Chen Chen
    • Shuzhi Feng
    • Jianli Tian
  • View Affiliations

  • Published online on: March 20, 2018     https://doi.org/10.3892/mmr.2018.8789
  • Pages: 7017-7026
  • Copyright: © Wang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Rapid proliferation and migration are the main features of hepatocellular carcinoma (HCC) cells, which serve an essential role in carcinogenesis and are a hallmark of cancer therapy resistance. Previous studies have reported that tumor necrosis factor‑α‑induced protein‑8 like‑2 (TIPE‑2) is involved in cancer initiation and the progression of HCC. The present study aimed to clarify the role of TIPE‑2 in HCC carcinogenesis, growth and aggressiveness. The effects of TIPE‑2 on HCC were determined using colony forming and cell cycle analyses. Cell apoptosis, and growth and aggressiveness of HCC cells, were investigated following TIPE‑2 treatment. Treatment with TIPE‑2 markedly suppressed HCC cell proliferation and increased the number of cells in S phase of the cell cycle. The results demonstrated that TIPE‑2 significantly inhibited growth, migration and invasion of HCC cells via the downregulation of tumor metastasis-associated genes. Flow cytometric analysis indicated that TIPE‑2 promoted apoptosis of HCC cells via regulation of apoptosis‑associated gene transcription. In addition, TIPE‑2 administration downregulated the expression of phosphoinositide 3‑kinase (PI3K) and protein kinase B (AKT) in HCC cells. In addition, TIPE‑2 selectively decreased neuroblastoma Ras viral oncogene and p27 expression in HCC cells. In vivo assays revealed that TIPE‑2 significantly inhibited tumor growth and prolonged animal survival by promoting apoptosis of tumor cells. The results of the present study indicated that TIPE‑2 acts as an inhibitor of HCC cell growth and aggressiveness, and promotes apoptosis, thus suggesting that TIPE‑2 may inhibit the metastasis‑associated PI3K/AKT signaling cascade and may arrest the tumor cell cycle. These findings provide a potential molecular mechanism by which TIPE‑2 promotes apoptosis of HCC cells.
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May-2018
Volume 17 Issue 5

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

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Spandidos Publications style
Wang L, Chen C, Feng S and Tian J: TIPE‑2 suppresses growth and aggressiveness of hepatocellular carcinoma cells through downregulation of the phosphoinositide 3‑kinase/AKT signaling pathway. Mol Med Rep 17: 7017-7026, 2018
APA
Wang, L., Chen, C., Feng, S., & Tian, J. (2018). TIPE‑2 suppresses growth and aggressiveness of hepatocellular carcinoma cells through downregulation of the phosphoinositide 3‑kinase/AKT signaling pathway. Molecular Medicine Reports, 17, 7017-7026. https://doi.org/10.3892/mmr.2018.8789
MLA
Wang, L., Chen, C., Feng, S., Tian, J."TIPE‑2 suppresses growth and aggressiveness of hepatocellular carcinoma cells through downregulation of the phosphoinositide 3‑kinase/AKT signaling pathway". Molecular Medicine Reports 17.5 (2018): 7017-7026.
Chicago
Wang, L., Chen, C., Feng, S., Tian, J."TIPE‑2 suppresses growth and aggressiveness of hepatocellular carcinoma cells through downregulation of the phosphoinositide 3‑kinase/AKT signaling pathway". Molecular Medicine Reports 17, no. 5 (2018): 7017-7026. https://doi.org/10.3892/mmr.2018.8789