Transforming growth factor-β induces CD44 cleavage that promotes migration of MDA-MB-435s cells through the up-regulation of membrane type 1-matrix metalloproteinase

2009 ◽  
Vol 124 (11) ◽  
pp. 2568-2576 ◽  
Author(s):  
Yi-Chih Kuo ◽  
Cheng-Hsi Su ◽  
Chin-Yi Liu ◽  
Tien-Hua Chen ◽  
Chie-Pein Chen ◽  
...  
Keyword(s):  
Growth Factor ◽  
Matrix Metalloproteinase ◽  
Transforming Growth Factor ◽  
Transforming Growth Factor Β ◽  
Membrane Type

scholarly journals Direct regulation of membrane type 1 matrix metalloproteinase following myocardial infarction causes changes in survival, cardiac function, and remodeling

2011 ◽  
Vol 301 (4) ◽  
pp. H1656-H1666 ◽  
Author(s):  
Juozas A. Zavadzkas ◽  
Rupak Mukherjee ◽  
William T. Rivers ◽  
Risha K. Patel ◽  
Evan C. Meyer ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Growth Factor ◽  
Matrix Metalloproteinase ◽  
Transforming Growth Factor ◽  
Biological Effects ◽  
Left Ventricular ◽  
Lv Function ◽  
Membrane Type

The membrane type 1 matrix metalloproteinase (MT1-MMP) is increased in left ventricular (LV) failure. However, the direct effects of altered MT1-MMP levels on survival, LV function, and geometry following myocardial infarction (MI) and the proteolytic substrates involved in this process remain unclear. MI was induced in mice with cardiac-restricted overexpression of MT1-MMP (MT1-MMPexp; full length human), reduced MT1-MMP expression (heterozygous; MT1-MMP+/−), and wild type. Post-MI survival was reduced with MT1-MMPexp and increased with MT1-MMP+/− compared with WT. LV ejection fraction was lower in the post-MI MT1-MMPexp mice compared with WT post-MI and was higher in the MT1-MMP+/− mice. In vivo localization of MT1-MMP using antibody-conjugated microbubbles revealed higher MT1-MMP levels post-MI, which were the highest in the MT1-MMPexp group and the lowest in the MT1-MMP+/− group. LV collagen content within the MI region was higher in the MT1-MMPexp vs. WT post-MI and reduced in the MT1-MMP+/− group. Furthermore, it was demonstrated that MT1-MMP proteolytically processed the profibrotic molecule, latency-associated transforming growth factor-1-binding protein (LTBP-1), and MT1-MMP-specific LTBP-1 proteolytic activity was increased by over fourfold in the post-MI MT1-MMPexp group and reduced in the MT1-MMP+/− group, which was directionally paralleled by phospho-Smad-3 levels, a critical signaling component of the profibrotic transforming growth factor pathway. We conclude that modulating myocardial MT1-MMP levels affected LV function and matrix structure, and a contributory mechanism for these effects is through processing of profibrotic signaling molecules. These findings underscore the diversity of biological effects of certain MMP types on the LV remodeling process.

scholarly journals Induction of membrane-type-1 matrix metalloproteinase by epidermal growth factor-mediated signaling in gliomas

2004 ◽  
Vol 6 (3) ◽  
pp. 188-199 ◽  
Author(s):  
Timothy E. Van Meter ◽  
William C. Broaddus ◽  
Harcharan K. Rooprai ◽  
Geoffrey J. Pilkington ◽  
Helen L. Fillmore
Keyword(s):  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Matrix Metalloproteinase ◽  
Epidermal Growth ◽  
Membrane Type
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