作者: David Zagzag , Bronya Shiff , George I Jallo , M Alba Greco , Cy Blanco
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摘要: Enhanced expression of tenascin-C (TN-C) at the invasive edges glioblastoma multiforme in close association with vascular sprouts, suggests a role for TN-C microvascular cell migration. To test this hypothesis, we studied migration endothelial cells vitro. In an aggregate assay, bovine retinal (BRECs) and human umbilical vein spread migrated similarly on or fibronectin (FN). contrast, U251 MG glioma less than FN. Morphological features included poor spreading short processes. FN, exhibited long radial Using transmembrane observed that BREC adhesion was similar whereas adhered better to FN TN-C. addition, BRECs more across membrane toward regions coated conversely, Migration occurred dose-dependent manner strongly dependent adhesion. ultrastructural study revealed migrating phenotype through micropores their morphology Moreover, situ hybridization specific cerebral ring assay. Finally phosphorylation enhanced focal kinase BRECs, but not cells, both cells. The by promotion suggest potential pathological angiogenesis.