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Chinese Archives of General Surgery(Electronic Edition) ›› 2015, Vol. 09 ›› Issue (05): 351-355. doi: 10.3877/cma.j.issn.1674-0793.2015.05.006

Special Issue:

• Original Article • Previous Articles     Next Articles

PPARγ signal pathway initiated by 15-deoxy-prostaglandin J2 suppressing the invasion and metastasis of hepatocellular carcinoma

Liangqi Cao1,(), Chuang Wang1, Ping Xue1, Dawei Zhang1, Huihong Liang1, Zili Shao1   

  1. 1. Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
  • Received:2015-03-29 Online:2015-10-01 Published:2015-10-01
  • Contact: Liangqi Cao
  • About author:
    Corresponding author: Cao Liangqi, Email:

Abstract:

Objective

To investigate the effect of 15-deoxy-prostaglandin J2 (15-d-PGJ2) on the invasion and metastasis of hepatocellular carcinoma SMMC-7721 cells, as well as its underlying mechanisms.

Methods

Hepatocellular carcinoma SMMC-7721 cells were treated by natural ligand 15-d-PGJ2 with or without antagonist GW9662 of peroxisome proliferator-activated receptor (PPAR). Invasion and metastasis of SMMC-7721 cells was measured by wound healing assay and Transwell chambers. mRNAs of PTEN and MMP-9 were assessed by RT-PCR and proteins by Western Blotting analysis, respectively.

Results

15-d-PGJ2, but not GW9662, inhibited the invasion and metastasis of SMMC-7721 cells, up-regulated PTEN mRNA and protein expression, and down-regulated MMP-9 mRNA and protein expression. However, after SMMC-7721 cells were pretreated for 1 h with GW9662 and exposed to 15-d-PGJ2, the inhibitive effects of 15-d-PGJ2 on invasion and metastasis of cancer cells were reversed.

Conclusion

15-d-PGJ2 increases PTEN expression and decreases MMP-9 expression to suppress the invasion and metastasis of HCC via activating PPAR signal pathway.

Key words: Peroxisome proliferator activated receptor, Hepatocellular carcinoma, PTEN, Invasion and metastasis

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