Expressions of heparanase and upstream stimulatory factor in hepatocellular carcinoma

European Journal of Medical Research

Min Zhong¹  Wei Cui²  Ming-Shi Wu²  Xiao-Peng Chen²  Bin Chen² 

[1] Central Laboratory, Affiliated Yijishan Hospital of Wannan Medical College, Wuhu 241001, Anhui Province, China;Department of General Surgery, Affiliated Yijishan Hospital of Wannan Medical College, Wuhu 241001, Anhui Province, China

关键词: Recurrence;    Hepatocellular carcinoma;    Upstream stimulatory factor;    Heparanase;   

Others  :  1107181
DOI  :  10.1186/s40001-014-0045-9

 received in 2014-02-17, accepted in 2014-08-06,  发布年份 2014

【 摘 要 】

Background

The expression of heparanase (HPSE) was associated with postoperative metastatic recurrence in patients with hepatocellular carcinoma (HCC). The six E-box binding sites in the core promoter of the HPSE gene suggested that transcription factors of E-box such as upstream stimulatory factor (USF) might regulate the transcription of the HPSE gene. The aim of our study is to measure the levels of HPSE and USF expression and investigate the relationship between USF expression and clinicopathological parameters in patients with HCC.

Methods

HPSE, USF1 and USF2 expressions in human HCC cell lines (BEL-7402, HepG2 and HCCLM3) and 15 fresh human HCC tissue samples were measured by real-time reverse transcriptase-PCR and Western blot analysis. The normal liver cell line QSG7701 or fresh normal liver tissue samples obtained from 15 additional surgical patients with hepatic rupture was used as a control. The protein expressions were determined by immunohistochemistry in paraffin-embedded human HCC tissues and corresponding non-neoplastic tumor surrounding tissues (NTST) of 57 patients.

Results

HPSE, USF1 and USF2 mRNA expressions were increased in HCC cell lines and HCC tissues compared with normal liver cell line and normal liver tissue. The protein expressions of HPSE, USF1 and USF2 in HCC cell lines and HCC tissues were also increased. Both USF1 and USF2 expressions were positively correlated with HPSE. USF1 and USF2 expressions were increased in patients with liver cirrhosis, worse tissue differentiation, advanced HCC stages and metastatic recurrence.

Conclusions

Increased USF in HCC is associated with HPSE expression. USF might be an important factor in regulating HPSE expression and act as a novel marker of metastatic recurrence of HCC patients.

【 授权许可】

   
2014 Chen et al.

【 图 表 】

Figure 1.

Figure 2.

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