Expression of MMP-2, TIMP-2, TGF-β1, and decorin in Dupuytren's contracture

Connect Tissue Res. 2012;53(6):469-77. doi: 10.3109/03008207.2012.686542. Epub 2012 Jul 24.

Abstract

To investigate the mechanisms underlying matrix deposition in Dupuytren's disease, the expression of gelatinase A (MMP-2), the tissue inhibitor of metalloproteinase-2 (TIMP-2), transforming growth factor beta 1 (TGF-β1), decorin (DCN), and periostin was studied. The level of relative MMP-2 activation was investigated using zymography. The mRNA expression of MMP-2, TIMP-2, TGF-β1, and DCN was detected using reverse transcription polymerase chain reaction (RT-PCR), while the presence of protein was detected using immunohistochemical (IHC) and Western blot techniques. The level of MMP-2 activation was significantly elevated in tissues with Dupuytren's contracture. RT-PCR demonstrated significantly higher expression of MMP-2, TIMP-2, TGF-β1, and DCN mRNA in the pathological tissues; and the IHC and immunoblotting studies revealed elevated expression of TGF-β1, DCN, and periostin. The balance between MMP-2 and TIMP-2 was disrupted in patients with Dupuytren's disease. TGF-β1, DCN, and periostin are involved in extracellular matrix (ECM) homeostasis in Dupuytren's contracture.

Publication types

  • Clinical Trial

MeSH terms

  • Aged
  • Cell Adhesion Molecules / biosynthesis
  • Decorin / biosynthesis*
  • Dupuytren Contracture / metabolism*
  • Dupuytren Contracture / pathology
  • Enzyme Activation
  • Extracellular Matrix / metabolism
  • Extracellular Matrix / pathology
  • Female
  • Gene Expression Regulation*
  • Humans
  • Male
  • Matrix Metalloproteinase 2 / biosynthesis*
  • Middle Aged
  • RNA, Messenger / biosynthesis
  • Reverse Transcriptase Polymerase Chain Reaction / methods
  • Tissue Inhibitor of Metalloproteinase-2 / biosynthesis*
  • Transforming Growth Factor beta1 / biosynthesis*

Substances

  • Cell Adhesion Molecules
  • DCN protein, human
  • Decorin
  • POSTN protein, human
  • RNA, Messenger
  • TGFB1 protein, human
  • TIMP2 protein, human
  • Transforming Growth Factor beta1
  • Tissue Inhibitor of Metalloproteinase-2
  • MMP2 protein, human
  • Matrix Metalloproteinase 2