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Int J Cancer. 2000 Mar 15;85(6):801-4.

Matrix-metalloproteinases and their inhibitors in plasma and tumor tissue of patients with renal cell carcinoma.

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Department of Urology, University Hospital Charité, Humboldt University, Berlin, Germany.


Matrix-metalloproteinases (MMPs) are associated with invasive and metastatic behavior of several human malignant tumors. We have determined MMP-2 and MMP-9 and tissue inhibitors of MMPs (TIMP-1 and TIMP-2) in blood plasma and in renal tissue samples of patients with renal cell carcinoma (RCC) from cancerous and non-cancerous parts of the same kidney. In tumor tissue, MMP-9 and TIMP-1 were significantly higher than in normal counterparts. MMP-2 was not different between tumor tissue and normal counterparts. TIMP-2 values could not be measured. In plasma, MMP-9 concentrations were significantly higher in RCC patients than in healthy controls, MMP-2 and TIMP-2 concentrations were higher in healthy controls and TIMP-1 concentrations were not different.

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