Abstract
We investigated the mechanisms of vascularization in a brain metastases model of malignant melanoma. Parenchymal metastases expressing little vascular endothelial growth factor-A (VEGF-A) co-opted the preexistent brain vasculature, leading to an infiltrative phenotype. Metastases of the human melanoma cell line Mell57, engineered to express recombinant VEGF-A165, showed accelerated growth in a combined expansive and infiltrative pattern with marked central necrosis. This difference in growth profile was accompanied by dilation of co-opted intra- and peritumoral vessels with concomitant induction of vascular permeability. Our data show that modulation of preexistent vasculature can contribute to malignant progression without induction of sprouting angiogenesis.
| Original language | English |
|---|---|
| Pages (from-to) | 341-345 |
| Number of pages | 5 |
| Journal | Cancer Research |
| Volume | 62 |
| Issue number | 2 |
| Publication status | Published - 15 Jan 2002 |
| Externally published | Yes |
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