Targeted molecular therapy of head and neck squamous cell carcinoma with the tyrosine kinase inhibitor vandetanib in a mouse model.

Head & Neck
Daisuke SanoJeffrey N Myers

Abstract

We investigated the effects of vandetanib, an inhibitor of vascular endothelial growth factor receptor 2 (VEGFR-2) and epidermal growth factor receptor (EGFR), alone and in combination with paclitaxel in an orthotopic mouse model of human head and neck squamous cell carcinoma (HNSCC). The in vitro effects of vandetanib (ZACTIMA) were assessed in 2 HNSCC cell lines on cell growth, apoptosis, receptor and downstream signaling molecule expression, and phosphorylation levels. We assessed in vivo effects of vandetanib and/or paclitaxel by measuring tumor cell apoptosis, endothelial cell apoptosis, microvessel density, tumor size, and animal survival. In vitro, vandetanib inhibited the phosphorylation of EGFR and its downstream targets in HNSCC cells and inhibited proliferation and induced apoptosis of HNSCC cells and extended survival and inhibited tumor growth in nude mice orthotopically injected with human HNSCC. Vandetanib has the potential to be a novel molecular targeted therapy for HNSCC.

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Citations

Feb 26, 2011·Clinical Cancer Research : an Official Journal of the American Association for Cancer Research·Daisuke SanoJeffrey N Myers
Sep 10, 2011·Clinical Cancer Research : an Official Journal of the American Association for Cancer Research·Daisuke SanoJeffrey N Myers

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