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Current Topics in Medicinal Chemistry

Editor-in-Chief

ISSN (Print): 1568-0266
ISSN (Online): 1873-4294

Molecular Design and Clinical Development of VEGFR Kinase Inhibitors

Author(s): Zhong Haizhen and Bowen Phillip J.

Volume 7, Issue 14, 2007

Page: [1379 - 1393] Pages: 15

DOI: 10.2174/156802607781696855

Price: $65

Abstract

Vascular angiogenesis has been shown to play a key role in many solid tumors. The vascular endothelial growth factor (VEGF) isoforms and their tyrosine kinase receptors (VEGFRs) have been under intense research for effective anticancer drug candidates. Epidermal growth factor (EGF) and its receptor (EGFR) provide another pathway critical in monitoring angiogenesis. VEGF exerts its effect through binding to tyrosine kinase receptors, mainly VEGFR-1 (Flt-1, the fms-like tyrosine kinase-1) and VEGFR-2 (Flk-1/KDR, fetal liver kinase-1). This paper reviews the progress, mechanism, and binding modes of recently approved kinase inhibitors, such as sunitinib (Sutent®), sorafenib (Nexavar®) and dasatinib (Sprycel®), as well as other inhibitors that are still under clinical development. Recent clinical treatments suggest that most inhibitors of VEGFR (and/or EGFR) exert their therapeutic effect through not only targeting the VEGFR (and/or EGFR) pathway, but also inhibiting other pathways, such as RAF/MEK/ERK pathway. A new pharmacophore model for second generation of type II tyrosine kinase inhibitors and recent advances in the combination of VEGFR tyrosine kinase inhibitors and other chemotherapeutics are also covered.

Keywords: VEGFR, kinase inhibitor


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