Tubulin Colchicine Binding Site Inhibitors as Vascular Disrupting Agents in Clinical Developments

Author(s): Ya-Ting Ji, Yan-Na Liu, Zhao-Peng Liu

Journal Name: Current Medicinal Chemistry

Volume 22 , Issue 11 , 2015

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Tumor vasculature is an important target in cancer treatment. Two distinct vasculartargeting therapeutic strategies are applied to attack cancer cells indirectly. The antiangiogenic approach intervenes in the neovascularization processes and blocks the formation of new blood vessels, while th e antivascular approach targets the established tumor blood vessels, making vascular shutdown and resulting in rapid haemorrhagic necrosis and tumor cell death. A number of compounds with diverse structural scaffolds have been designed to target tumor vasculature and they are called vascular disrupting agents (VDAs). The biological or ligand-directed VDAs utilize antibodies, peptides or growth factors to deliver toxins or pro-coagulants or proapoptotic affectors to tumor-related blood vessels, while the small-molecule VDAs selectively target tumor blood vessels and have little effects on the normal endothelium. Among the small-molecule VDAs, the tubulin colchicine binding site inhibitors have been extensively studied and many of them have entered the clinical trials, including CA-4P, CA-1P, AVE8062, OXi4503, CKD-516, BNC105P, ABT-751, CYT- 997, ZD6126, NPI-2358, MN-029 and EPC2407. This review makes a summary of the small-molecule VDAs in clinical developments and highlights some potential VDA leads or candidates for the treatment of tumors.

Keywords: Anticancer, antitumor, antivascular, clinical trials, colchicine binding site, tubulin inhibitors, vascular disrupting agents (VDAs).

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Article Details

Year: 2015
Published on: 17 March, 2015
Page: [1348 - 1360]
Pages: 13
DOI: 10.2174/0929867322666150114163732
Price: $65

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PDF: 98