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Chinese Archives of General Surgery(Electronic Edition) ›› 2013, Vol. 07 ›› Issue (06): 436-440. doi: 10.3877/cma.j.issn.1674-0793.2013.06.005

Special Issue:

• Original Article • Previous Articles     Next Articles

Expression and clinical significance of matrix metalloproteinases-9 in pancreatic carcinoma tissues

Pei-zhong SHANG1,(), Xiao-wu LI1, Da-wei CAI1, Wei-nan ZHAO1, Yan-chun WEN2, Hua-ping GU2   

  1. 1. Department of General Surgery, the 251st Hospital of PLA, Zhangjiakou 075000, China
  • Received:2013-07-13 Online:2013-12-01 Published:2013-12-01
  • Contact: Pei-zhong SHANG
  • About author:
    Corresponding author: SHANG Pei-zhong, Email:

Abstract:

Objective

To investigate the expression of matrix metalloproteinases-9 (MMP-9) in pancreatic carcinoma and its clinicopathological characteristics and prognosis.

Methods

The expression of MMP-9 was detected in 70 pieces of primary pancreatic carcinoma and 15 pieces of non-tumor pancreatic tissues by EliVisionTM Plus immunohistochemistry method. The relationship between MMP-9 expression and survival, clinicopathological characteristics were analyzed.

Results

The positive rate of MMP-9 in 70 pieces of primary pancreatic carcinoma tissues was 68.6% (48/70) , and that was significantly higher than that in the 15 pieces of adjacent non-tumor pancreatic tissues(26.7%, 4/15). The expression of MMP-9 did not correlate with gender, age and the tumor position, while it was significantly correlated with the tumor size, differentiation grade, TNM stages and lymph node metastasis(P<0.05). Progression-free survival and overall survival of negative group(22 cases) were significantly longer than the positive group(48 cases), χ2=11.84, 16.09 respectively, P<0.05.

Conclusions

The MMP-9 expression is closely related with clinicopathological parameters of patients with pancreatic cancer. The over-expression MMP-9 may get poor prognostic predictors.

Key words: Pancreatic carcinoma, Matrix metalloproteinases-9, Immunohistochemistry, Prognosis

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