Clinical and investigative medicine. Medecine clinique et experimentale · 2009
Potential role of matrix metalloproteinase-2,-9 and tissue inhibitors of metalloproteinase-1,-2 in exudative pleural effusions.
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Vatansever S, Gelisgen R, Uzun H, Yurt S, Kosar F
Аннотация
PURPOSE: To investigate diagnostic values of pleural fluid matrix metalloproteinase-2 (MMP-2), MMP-9, tissue inhibitors of metalloproteinase-1 (TIMP-1) and TIMP-2 measurements in tuberculous pleurisy(TP) and malignat pleurisy (MP).
METHODS: The study included 24 patients with TP, 22 patients with MP and 15 patients with pleural effusion of non-tuberculous and non-malignant origin as controls. MMP-2,-9 and TIMP-1,-2 levels in pleural fluid were measured by ELISA method.
RESULTS: Pleural fluid MMP-2 and MMP-9 levels were higher (P < 0.001, P < 0.001, respectively) in TP than in MP and controls. MP patients have higher pleural fluid MMP-2 and MMP-9 levels (P < 0.01, P < 0.05, respectively) than controls. Pleural fluid TIMP-2 levels were higher (P < 0.01 and P < 0.001, respectively) in MP than in TP and controls. Pleural fluid MMP-9 levels were negatively correlated with pleural fluid TIMP-2 levels (r: 0.464, P=0.029) in patients with MP.
CONCLUSIONS: Determination of TIMP-2 in pleural fluid may contribute to differentiate TP from MP. These results suggest that overproduction of MMP-9 and TIMP-2 is associated with accumulation of the pleural effusion in malignancy. Further studies with a greater number of patients are needed to confirm this hypothesis.
METHODS: The study included 24 patients with TP, 22 patients with MP and 15 patients with pleural effusion of non-tuberculous and non-malignant origin as controls. MMP-2,-9 and TIMP-1,-2 levels in pleural fluid were measured by ELISA method.
RESULTS: Pleural fluid MMP-2 and MMP-9 levels were higher (P < 0.001, P < 0.001, respectively) in TP than in MP and controls. MP patients have higher pleural fluid MMP-2 and MMP-9 levels (P < 0.01, P < 0.05, respectively) than controls. Pleural fluid TIMP-2 levels were higher (P < 0.01 and P < 0.001, respectively) in MP than in TP and controls. Pleural fluid MMP-9 levels were negatively correlated with pleural fluid TIMP-2 levels (r: 0.464, P=0.029) in patients with MP.
CONCLUSIONS: Determination of TIMP-2 in pleural fluid may contribute to differentiate TP from MP. These results suggest that overproduction of MMP-9 and TIMP-2 is associated with accumulation of the pleural effusion in malignancy. Further studies with a greater number of patients are needed to confirm this hypothesis.