Matrix metalloproteinase-9 and Matrix metalloproteinase-2 (MMP-9, MMP-2)

Matrix metalloproteinase-9 (MMP-9) and Matrix metalloproteinase-2 (MMP-2) are members of the matrix metalloproteinase family, a group of zinc-dependent enzymes that degrade various components of the extracellular matrix. MMP-9 (also known as gelatinase B) and MMP-2 (gelatinase A) are specifically involved in cleaving type IV collagen and gelatin, playing key roles in physiological processes such as wound healing, angiogenesis, and tissue remodeling. However, elevated or dysregulated activity of these enzymes is implicated in numerous pathological states, including cancer progression and metastasis, chronic inflammation, cardiovascular and renal diseases, and fibrosis. Both enzymes are targets for drug development, and their activity/levels serve as clinical biomarkers for disease progression and monitoring. Attempts to therapeutically inhibit these enzymes have faced challenges due to the broad expression and systemic roles of MMPs, resulting in side effects and limited clinical success for non-selective inhibitors.

Other names

92 kDa type IV collagenase92 kDa gelatinasegelatinase B (GELB)72 kDa type IV collagenasegelatinase A

Inhibition of enzymatic activity (chelating zinc at the active site or blocking substrate binding); Transcriptional or post-translational downregulation (reducing MMP-2/-9 expression or secretion)