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Medulloblastoma is the most common pediatric malignant brain tumor. Although current therapies improve survival, these regimens are highly toxic and are associated with significant morbidity. Here, we report that placental growth factor (PlGF) is expressed in the majority of medulloblastomas, independent of their subtype. Moreover, high expression of PlGF receptor neuropilin 1 (Nrp1) correlates with...
An agent that blocks tumor angiogenesis, growth, and metastasis without affecting normal tissues—whether used alone or in combination with currently approved drugs—would change the way we treat cancer. In this issue, Fischer et al. (2007) offer compelling evidence that a monoclonal antibody against placental growth factor (PlGF), a member of the VEGF family, has such potential in mice.
We have established a line of transgenic mice expressing the A. victoria green fluorescent protein (GFP) under the control of the promoter for vascular endothelial growth factor (VEGF). Mice bearing the transgene show green cellular fluorescence around the healing margins and throughout the granulation tissue of superficial ulcerative wounds. Implantation of solid tumors in the transgenic mice leads...
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