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Tytuł pozycji:

Gelatinase A Activity in Dupuytren’s Disease.

Tytuł :
Gelatinase A Activity in Dupuytren’s Disease.
Autorzy :
Augoff, Katarzyna
Ratajczak, Katarzyna
Gosk, Jerzy
Tabola, Renata
Rutowski, Roman
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Temat :
EXTRACELLULAR matrix
SURGERY
ENZYMES
CONNECTIVE tissues
Źródło :
Journal of Hand Surgery (03635023); Dec2006, Vol. 31 Issue 10, p1635-1639, 5p
Czasopismo naukowe
Purpose: Dupuytren’s contracture is a fibroproliferative disorder of the hand characterized by an abnormal myofibroblast and fibroblast proliferation and extracellular matrix deposition leading to retraction and deformation of the palm. Recent studies have shown that molecules of extracellular matrix may coordinate morphogenesis, cell differentiation, and most importantly, fibrogenesis in tissue. Gelatinase A (MMP-2) is a member of the matrix metalloproteinase family of proteolytic enzymes that contribute to remodeling the extracellular matrix by degrading its components. The aim of this study was to determine the level of MMP-2 activation in the palmar fascia of patients with Dupuytren’s contracture with reference to the clinical stages of disease progression and recurrence of the contracture after surgery. Methods: The level of relative MMP-2 activation, expressed by the active to latent MMP-2 ratio, was investigated with use of zymography and computerized densitometry in 16 normal and 71 pathologic tissues characterizing different clinical stages of the disease progression. Results: We found that the level of MMP-2 activation was significantly elevated in the palmar fascias with Dupuytren’s contracture compared with normal tissues. We did not find statistically significant differences between groups with different stages of the disease progression. We also did not find a relation between a high level of MMP-2 activation and the recurrence in the area of surgically treated Dupuytren’s contracture. Conclusions: The differences in MMP-2 activation between contractured and normal fascia suggest a participation of this enzyme in the promotion of Dupuytren’s disease. We did not find a relationship, however, between the level of MMP-2 activation and the secondary contracture. [Copyright &y& Elsevier]
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