Expression of Matrix Metalloproteinase-2 (MMP-2) and Tissue Inhibitor of Metalloproteinase-2 (TIMP-2) in Pancreatic Ductal Adenocarcinoma
구미진, 배영경, 최준혁,
소속 상세정보
구미진 ( Gu Mi-Jin )
성삼병원 병리과
배영경 ( Bae Young-Kyung )
영남대학교 의과대학 병리학교실
최준혁 ( Choi Joon-Hyuk )
영남대학교 의과대학 병리학교실
KMID : 0357920040380020073
Abstract
Background: Matrix metalloproteinase-2 (MMP-2) is known to be one of the key molecules for tumor invasion and metastasis. MMP-2 activity is modulated through interaction with the tissue inhibitor of metalloproteinase-2 (TIMP-2). The purpose of this study was to evaluate the expression of MMP-2 and TIMP-2 in pancreatic ductal adenocarcinoma.
Methods: Using immunohistochemical staining, we investigated the expression of MMP-2 and TIMP-2 in 30 pancreatic ductal adenocarcinomas and 10 normal pancreas.
Results: MMP-2 expression was present in tumor cells in 11 cases, and in stromal cells in 24 cases, out of 30 carcinomas. MMP-2 expression of tumor cells was significantly higher in poorly differentiated adenocarcinomas than in well/moderately differentiated adenocarcinomas, and in cases with vascular invasion than in cases without. MMP-2 expression was stronger in the marginal areas than in the central area of the tumor. TIMP-2 expression was detected in the tumor and stromal cells of all carcinomas. MMP-2 and TIMP-2 expression had no significant correlation with tumor size, lymph node metastasis, or TNM stage. MMP-2 expression was not correlated with TIMP-2 expression.
Conclusions: These results suggest that MMP-2 expression may play an important role in the invasive property of pancreatic ductal adenocarcinoma, whereas TIMP-2 expression increases as a reaction to invasion.
키워드
Pancreas;Duct;Adenocarcinoma;MMP-2;TIMP-2
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