MMP12 Antibody (YA7031)

MMP-12, also known as macrophage metalloelastase, is a zinc-dependent extracellular matrix protease predominantly produced by activated macrophages and is characterized by potent elastolytic activity involved in tissue injury and remodeling processes^[1][2]. Mechanistically, MMP-12 participates in extracellular matrix degradation, macrophage migration, inflammatory signaling, and tissue remodeling, thereby linking innate immune responses to structural alterations in affected tissues^[2][3]. In disease settings, elevated MMP-12 activity has been associated with chronic pulmonary disorders, including chronic obstructive pulmonary disease and emphysema, where elastin degradation contributes directly to pathological lung remodeling^[2][4]. Experimental studies further demonstrate that MMP-12 regulates macrophage infiltration, inflammatory cytokine expression, vascular dysfunction, and pathological angiogenesis in ischemic retinopathy models, supporting its broader role in inflammatory and remodeling-associated diseases^[3]. Compared with several related matrix metalloproteinases that display broader substrate repertoires, MMP-12 is distinguished by its strong elastase activity and prominent expression in inflammatory macrophages, making it particularly relevant to elastin-rich tissue remodeling and macrophage-driven pathology^[1][2]. For experimental applications, genetic deletion or pharmacological inhibition of MMP-12 reduces inflammatory responses, macrophage recruitment, and pathological tissue remodeling in multiple disease models, supporting its utility as a mechanistic target for studying inflammation, extracellular matrix turnover, and disease progression^[3][4].