Effects of AFP-activated PI3K/Akt signaling pathway on cell proliferation of liver cancer
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- 作者：Lu Zheng (1)
Wei Gong (2)
Ping Liang (1)
XiaoBing Huang (1)
Nan You (1)
Ke Qiang Han (1)
Yu Ming Li (1)
Jing Li (1) - 关键词：Hepatocellular carcinoma cells ; Proliferation ; Migration ; PI3K/Akt ; Signaling pathway ; Fetoprotein
- 刊名：Tumor Biology
- 出版年：2014
- 出版时间：May 2014
- 年：2014
- 卷：35
- 期：5
- 页码：4095-4099
- 全文大小：
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Wei Gong (2)
Ping Liang (1)
XiaoBing Huang (1)
Nan You (1)
Ke Qiang Han (1)
Yu Ming Li (1)
Jing Li (1)
1. Department of Hepatobiliary Surgery, Xinqiao Hospital, Third Military Medical University, Xin Qiao Main Street, Chongqing, 400037, China
2. Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Third Military Medical University, Chongqing, 400038, China - ISSN：1423-0380
文摘
This study aims to investigate effects of alpha-fetoprotein (AFP)-activated phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) signaling pathway on hepatocellular carcinoma cell proliferation. Active cirrhosis patients after hepatitis B infection (n--0) and viral hepatitis patients with hepatocellular carcinoma (HCC) (n--0) were selected as the subjects of the present study. Another 20 healthy subjects were selected as the control group. The serum AFP expression and liver tissue PI3K and Akt gene mRNA expression were detected. The hepatoma cell model HepG2 which had a stable expression of AFP gene was used. Real-time quantitative PCR and Western blot and other methods were used to analyze the intracellular PI3K and Akt protein levels. Compared with control group and cirrhosis group, the serum AFP levels in HCC group significantly increased, and the tissue PI3K and Akt mRNA expression also significantly increased. HepG2 cells were intervened using AFP, in which the PIK and Akt protein expression significantly increased. After intervention by use of AFP monoclonal antibodies or LY294002 inhibitor, the PIK and Akt protein expression in HepG2 cell was significantly decreased (P-lt;-.05). AFP can promote the proliferation of hepatoma cells via activation of PI3K/Akt signaling pathway.