Description_x000D_ General description_x000D_ The Human MMP-9 ELISA (Enzyme-Linked Immunosorbent Assay) kit is an in vitro enzyme-linked immunosorbent assay for the quantitative measurement of human MMP-9 pro and active forms in serum, plasma, cell culture supernatants and urine._x000D_ Immunogen_x000D_ Recombinant Human MMP9_x000D_ Application_x000D_ For research use only. Not for use in diagnostic procedures._x000D_ Please refer to the attached General ELISA KIT Procedure (sandwich, competitive & Indirect ELISA)_x000D_ Biochem/physiol Actions_x000D_ Matrix metalloproteinase 9 (MMP9) is a gelatinase enzyme, which catalyzes the degradation of gelatin and collagen and is preferentially inhibited by tissue inhibitor of metalloproteinases 1 (TIMP-1). The MMP9 protein is a zinc-dependent protease which is responsible for degradation of extracellular matrix components. It also participates in the pathogenesis of cancers. MMP9 is associated with various disorders, such as cystic fibrosis, acute lung injury, asthma as well as respiratory syncytial virus infection both in vitro and in vivo. MMP-9 is involved in a variety of autoimmune diseases such as systemic lupus erythematosus, rheumatoid arthritis and multiple sclerosis and be regarded as a potential therapeutic target. Mutation of MMP-9 is associated with lumbar-disc herniation (LDH) and metaphyseal anadysplasia (MAD)._x000D_ Other Notes_x000D_ A sample Certificate of Analysis is available for this product._x000D_ Please type the word sample in the text box provided for lot number.