Targeting Microtubules to Inhibit Angiogenesis and Disrupt Tumour Vasculature:Implications for Cancer Treatment

Author(s): Eddy Pasquier, Nicolas Andre, Diane Braguer

Journal Name: Current Cancer Drug Targets

Volume 7 , Issue 6 , 2007

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Anticancer agents that interfere with tubulin functions are widely used in the clinic and have a broad spectrum of activity against both haematological malignancies and solid tumours. These Microtubule-Targeting Agents (MTAs), such as the taxanes and Vinca alkaloids, bind to the β subunit of α/β tubulin and disrupt microtubule dynamics in tumour cells, ultimately leading to mitotic block and subsequent cell death. Recently, MTAs have received considerable interest as potential tumour-selective anti-angiogenic and vascular-disrupting agents. Angiogenesis is a keystone of tumour progression and metastasis and targeting the formation of new blood vessels within the tumour is therefore regarded as a promising strategy for cancer therapy. In this regard, conventional MTAs can be given on daily schedules at non-toxic doses (metronomic dosing) to disturb tumour angiogenesis. Some MTAs can also act as vasculardisrupting agents. After briefly reviewing the classical mechanisms involved in the anti-tumour action of MTAs, we will focus on the latest studies investigating the molecular and cellular processes underlying the anti-angiogenic and the vascular-disrupting properties of these agents. We will also review and discuss the potential clinical development and the limitations of MTAs used as tumour-specific anti-vascular molecules.

Keywords: Microtubule, microtubule-targeting agents, endothelial cell, angiogenesis, anti-vascular therapy, metronomic chemotherapy

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Article Details

Year: 2007
Page: [566 - 581]
Pages: 16
DOI: 10.2174/156800907781662266
Price: $65

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