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Matrix Metalloproteases (MMPs) play important roles in many physiological or pathological processes including embryonic development, morphogenesis, reproduction, tissue remodeling, arthritis, cancer and cardiovascular disease. Membrane-Type MMPs (MT-MMPs) have emerged as an important subgroup. MMPs function in the breakdown of extracellular matrix and in the processing of a variety of biological molecules. MMP activities are regulated at multiple levels such as the activation of proenzymes and via suppression by tissue inhibitors of metalloproteinases (TIMPs).
MMP-9: Customer Publications
Right Images: MMP-9 expression in the sciatic nerves of control (A) vs AUY954 (B) treated rats. Am J Physiol Lung Cell Mol Physiol, Sep 2009; doi:10.1152/ajplung.00193.2009
Images: Expression of functional MMP-9 by GLV-1h255-infected tumor cells. (A) Expression cassettes of GLV-1h68 and GLV-1h255. In GLV-1h255 the insert in the Tk locus was replaced by the human mmp-9 gene under control of the PSE promoter. PSEL, synthetic early/late promoter; PSE, synthetic early promoter; P7.5, VACV p7.5 K early/late promoter; P11, VACV p11 late promoter; Tk, thymidine kinase locus, Ha, hemagglutinin locus. (B) Expression of virus-encoded MMP-9 (92 kDa) in GLV-1h255 infected PC-3 cells and supernatants in vitro, β-actin (42 kDa) was used as a loading control. (C) Activity of the MMP-9 protein was tested by gelatin zymography. Lysates and supernatants of infected A549 cells were isolated and separated by non-reducing SDS-PAGE. In zymography, cleavage of the substrate by MMP-9 resulted in a clear band. BMC Cancer 2012, 12:366 doi:10.1186/1471-2407-12-366.