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Integrin alpha(v)beta(3) antagonists for anti-angiogenic cancer treatment
Integrin alpha(v)beta(3) antagonists for anti-angiogenic cancer treatment RECENT PATENTS ON ANTI-CANCER DRUG DISCOVERY Hsu, A. R., Veeravagu, A., Cai, W., Hou, L. C., Tse, V., Chen, X. 2007; 2 (2): 143-158Abstract
Direct contact between cellular and extracellular matrix (ECM) proteins is necessary for a diverse array of physiologic processes including cellular activation, migration, proliferation, and differentiation. These direct interactions are modulated by cell adhesion molecules (CAMs) such as integrins, selectins, cadherins, and immunoglobulins. Integrin signaling also plays a key role in tumor growth, angiogenesis, and metastasis. Recent advances in the discovery and characterization of CAMs and their receptors, most notably integrin alpha(v)beta(3), and the clarification of their roles in disease states have laid the groundwork for the development and clinical implementation of novel anti-cancer treatments. Integrin alpha (v)beta(3) is a glycoprotein membrane receptor which recognizes ECM proteins expressing an arginine-glycine-aspartic acid (RGD) peptide sequence. The receptor is highly expressed on activated tumor endothelial cells, but not resting endothelial cells and normal organ systems, thus making alpha(v)beta(3) an appropriate target for anti-angiogenic therapeutics. In addition, alpha(v)beta(3) is also expressed on tumor cells, allowing for both tumor cell and tumor vasculature targeting of anti-integrin therapy. Throughout the past decade, numerous patents have been published and issued using alpha(v)beta(3) antagonists for the prevention and/or treatment of cancer, with many antagonists demonstrating positive pre-clinical anti-angiogenic and anti-tumor results. This review will focus on the key points and distinguishing factors for patents which use antibodies, RGD peptides, non-RGD peptides, peptidomimetics, and amine salts as alpha(v)beta(3) antagonists.
View details for Web of Science ID 000247259700004
View details for PubMedID 18221059