Matrix metalloproteinase-9 messenger RNA (MMP-9 mRNA) (MMP-9 mRNA)

Matrix metalloproteinase-9 (MMP-9) messenger RNA (mRNA) is the transcript of the MMP9 gene (NCBI Gene ID: 4318) that encodes the 92 kDa type IV collagenase, an enzyme critical for degrading extracellular matrix (ECM) components (UniProt: P14780). While MMP-9 is essential for normal physiological processes such as wound healing and bone remodeling, its mRNA is frequently overexpressed in various cancers, where it facilitates tumor invasion, metastasis, and angiogenesis by breaking down the basement membrane (PubMed: 25605332). In addition to oncology, elevated MMP-9 mRNA levels are implicated in chronic inflammatory diseases and cardiovascular conditions like atherosclerosis (PubMed: 12479701). Therapeutic targeting of the mRNA transcript, rather than the protein itself, is pursued through technologies like antisense oligonucleotides (ASOs) and small interfering RNAs (siRNAs) to achieve higher specificity and avoid the toxicity associated with broad-spectrum MMP inhibitors (PubMed: 15671246). These RNA-targeted therapies work by inducing the degradation of the MMP-9 mRNA or blocking its translation, thereby preventing the synthesis of the pro-enzyme and reducing pathological proteolytic activity.

Other names

MMP9 mRNAGelatinase B mRNA92 kDa type IV collagenase mRNAMatrix metallopeptidase 9 mRNA

RNA interference (RNAi) or antisense-mediated degradation (e.g., RNase H-mediated cleavage) of the MMP-9 transcript to prevent protein translation.