Malignant gliomas are characterized by their invasiveness and angiogenesis. Matrix metalloproteinases (MMPs) degrade extracellular matrix and create a more permissive environment for cell invasion. We aimed to investigate for the presence of inter- and intratumoral heterogeneity in MMP-2 messenger RNA (mRNA) expression by means of quantitative analysis and to evaluate its prognostic impact in glioma patients.
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