Review Article

Antiangiogenic Resistance: Novel Angiogenesis Axes Uncovered by Antiangiogenic Therapies Research

Author(s): Gabriela Jiménez-Valerio and Oriol Casanovas

Volume 17, Issue 15, 2016

Page: [1728 - 1734] Pages: 7

DOI: 10.2174/1389450117666160301101425

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The mechanisms of tumor growth and progression involve the activation of different processes such as neovascularization and angiogenesis. These processes involve tumoral cells and stromal cells. Hence, inhibiting angiogenesis affects tumor growth and proliferation in patients with different types of cancer. Nevertheless, tumoral cells and stromal components are responsible for the resistance to antiangiogenic therapies. The majority of tumors respond to this type of therapy; however, some tumors may be indifferent to antiangiogenic therapies (intrinsic resistance) and other tumors become resistant during treatment (acquired resistance). Different strategies have been proposed to prevent resistance. Preclinical studies and clinical trials are focused to fight this therapeutic approach in order to prevent or delay tumor resistance to antiangiogenic therapies.

Keywords: Acquired resistance, anti-angiogenic therapy, intrinsic resistance, stromal cells, tumor cells.

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