Molecular mechanisms of angiogenesis in non-small cell lung cancer,and therapeutics targeting related molecules |
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Authors: | Yano Seiji Nishioka Yasuhiko Goto Hisatsugu Sone Saburo |
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Affiliation: | Department of Internal Medicine and Molecular Therapeutics, University of Tokushima School of Medicine, 3–18–15 Kuramoto-cho, Tokushima 770–8503 |
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Abstract: | Angiogenesis, neovascularization from pre-existing vasculature, is necessary to supply oxygen and nutrition for tumor growth in both primary and distant organs. It consists of sprouting and non-sprouting (the enlargement, splitting, and fusion of pre-existing vessels) processes, and both can occur concurrently. Growth of solid tumors, including non-small cell lung cancer (NSCLC), is usually dependent on angiogenesis, which is regulated by complex mechanisms involving various angiogenesis-related molecules. Vascular endothelial growth factor (VEGF), also known as vascular permeability factor (VPF), one of the most potent angiogenic molecules, regulates both angiogenesis and vascular permeability, and hence promotes tumor progression and development of malignant pleural effusions in NSCLC. Signals via epidermal growth factor receptor (EGFR) promote not only the tumor cell cycle, but also the process of angiogenesis. Therefore, these molecules are potential targets for anti-tumor vasculature therapy. Many agents targeting tumor vasculature have been developed, and several compounds have shown anti-tumor potential in pre-clinical studies. Their efficacy against NSCLC is currently being evaluated in clinical trials. |
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