Record number :
1620830
Title of article :
Epigallocatechin-3-gallate binding to MMP-2 inhibits gelatinolytic activity without influencing the attachment to extracellular matrix proteins but enhances MMP-2 binding to TIMP-2
Author/Authors :
Cheng، نويسنده , , Xian Wu and Kuzuya، نويسنده , , Masafumi and Kanda، نويسنده , , Shigeru and Maeda، نويسنده , , Keiko and Sasaki، نويسنده , , Takeshi and Lan Wang، نويسنده , , Qiu and Tamaya-Mori، نويسنده , , Norika and Shibata، نويسنده , , Tami and Iguchi، نويسنده , , Akihisa، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
7
From page :
126
To page :
132
Abstract :
Although epigallocatechin-3-gallate (EGCg), a dominant component of green tea catechins, has been demonstrated to have anti-gelatinase properties, the molecular mechanisms by which EGCg blocks gelatinolytic activities remain unknown. We investigated whether EGCg may affect matrix metalloproteinase-2 (MMP-2) binding to native and denatured-type I collagen, and binding to the tissue inhibitor of metalloproteinase-2 (TIMP-2). Here, we report that EGCg forms a reversible complex with MMP-2, resulting in the inhibition of gelatinolytic activity of MMP-2. EGCg had no effect on the MMP-2 binding to immobilized native and denatured-type I collagen, but significantly enhanced pro- and activated MMP-2 binding to TIMP-2, as assessed by immunoprecipitation. These findings provide a new understanding of the molecular mechanisms underlying the inhibitory effect of EGCg on the gelatinolytic activity of MMP-2.
Keywords :
Epigalocatechin-3-gallate , Detergents , Matrix proteins , TIMP-2 , Gelatinases
Journal title :
Archives of Biochemistry and Biophysics
Journal title :
Archives of Biochemistry and Biophysics
Serial Year :
2003
Link To Document :
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