Metalloproteinase enzyme

Metalloproteinases are a diverse family of zinc-dependent endopeptidases that catalyze the hydrolysis of peptide bonds in proteins, primarily within the extracellular matrix (ECM), using a metal ion in their active site.[1][5] They encompass subgroups like metalloendopeptidases (including matrix metalloproteinases or MMPs) and metalloexopeptidases, with MMPs being prominent for degrading collagens, elastins, and other ECM components essential for tissue homeostasis.[1][2][7] Physiologically, they facilitate critical processes such as embryogenesis, angiogenesis, wound healing, and organ morphogenesis by enabling ECM turnover and modulating cell signaling through cleavage of receptors, cytokines, and growth factors.[2][4][6] In disease, dysregulated metalloproteinase activity contributes to pathology, including cancer metastasis (e.g., via MMP-2 and MMP-9), rheumatoid arthritis (MMP-1), fibrosis, and cardiovascular remodeling, often upregulated by inflammation or tumor microenvironments.[2][5][6][11] Therapeutically, MMP inhibitors have been developed but faced challenges due to broad-spectrum effects disrupting normal remodeling, leading to side effects like joint disorders; ongoing research targets specific isoforms for better efficacy in oncology and inflammatory conditions.[2][4]

Other names

Metalloproteasemetzincin superfamily enzymesmatrixins (for MMPs)

Zinc chelation to inhibit catalytic activity, Competitive inhibition of substrate binding, Inhibition of pro-enzyme activation