Gelatin Zymography and Substrate Cleavage Assays of Matrix Metalloproteinase-2 in Breast Carcinoma Cells Overexpressing Membrane Type-1 Matrix Metalloproteinase
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چکیده
منابع مشابه
Ovarian carcinoma regulation of matrix metalloproteinase-2 and membrane type 1 matrix metalloproteinase through beta1 integrin.
Culturing DOV 13 ovarian carcinoma cells on three-dimensional collagen lattice but not on thin-layer collagen induces processing of promatrix metalloproteinase (MMP)-2 to a M(r) 62,000 form, suggesting that multivalent integrin aggregation may participate in proteinase regulation. To address the role of collagen-binding integrins in this event, we treated DOV 13 cells with soluble beta1 integri...
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Cancer cell metastasis to distant organs is the major cause of death in cancer patients. Metastasis is a multistep process, and the initial step is considered to be the invasion of surrounding stromal tissue by cancer cell. The degradation of extracellular matrix (ECM) components is essential for tumor cells to invade surrounding tissue and to form metastatic colonies in other distant organs an...
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Background: Meningioma is one of the most common tumors of the central nervous system. It was shown that meningioma had up-regulated expression of Matrix Metalloproteinases (MMPs) that involved in cell growth, angiogenesis and metastasis. Objectives: The aim of the study was the assessment of serum MMP-2 and -9 levels in patients with different grades of meningioma. Materials & Me...
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Introduction: Metalloproteinases and their tissue inhibitors play an important role in the metastases formation. A multistage process of carcinogenesis requires the involvement of numerous enzymes and compounds that facilitate the expansion of tumor cells. The formation of metastases depends on both metalloproteinases and tissue inhibitors activation leading to the acti...
متن کاملTyrosine phosphorylation mediates ConA-induced membrane type 1-matrix metalloproteinase expression and matrix metalloproteinase-2 activation in MDA-MB-231 human breast carcinoma cells.
ConA-induced cell surface activation of pro-matrix metalloproteinase-2 (pro-MMP-2) by MDA-MB-231 human breast cancer cells is apparently mediated by up-regulation of membrane type 1 MMP (MT1-MMP) through transcriptional and posttranscriptional mechanisms. Here, we have explored the respective roles of cell surface clustering and protein tyrosine phosphorylation in the ConA-induction effects. Tr...
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ژورنال
عنوان ژورنال: Laboratory Investigation
سال: 2002
ISSN: 0023-6837,1530-0307
DOI: 10.1097/01.lab.0000038555.67772.db