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Despite conventional treatment strategies glioblastoma, the most common malignant primary brain tumor, has a bad prognosis with median survival times of 12–15 months. In this study, the efficacy of sorafenib (Nexavar, BAY43-9006), a multikinase inhibitor, on glioblastoma cells was evaluated both in vitro and in vivo. Treatment of established or patient-derived glioblastoma cells with low concentrations...
Inhibitor-of-Apoptosis (IAP) proteins contribute to tumor progression, but the requirements of this pathway are not understood. Here, we show that intermolecular cooperation between XIAP and survivin stimulates tumor cell invasion and promotes metastasis. This pathway is independent of IAP inhibition of cell death. Instead, a survivin-XIAP complex activates NF-κB, which in turn leads to increased...
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