The expression and localization of membrane type-1 matrix metalloproteinase in human abdominal aortic aneurysms.
BACKGROUND AND OBJECTIVE: Matrix metalloproteinase-2 (MMP-2) degrades both fibrillar collagens and elastin. MMP-2 is secreted as a latent 72-kd proenzyme that must be proteolytically processed to the 62-kd active form. In our laboratory we demonstrated a significant increase of active, matrix-bound MMP-2 in abdominal aortic aneurysmal (AAA) tissue compared with nonaneurysmal aorta with arteriosclerotic occlusive disease and normal aortic tissue. This increase in active MMP-2 is considered to...Expand abstract
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