Description
Angiogenesis (formation of new vessels from pre-existing ones) is a crucial early event in the process of tumor development. New vessels supply the tumor with nutrients that are needed for further local growth and enable distant metastases (Folkman 1995). Judah Folkman (1971) highlighted the potential therapeutic imp- cations of tumor angiogenesis. He hypothesized that if tumor angiogenesis is inhibited, then tumor growth and metastasis will be impaired greatly or even impossible. The subsequent quest for endogenous and exogenous inhibitors of angiogenesis has yielded a variety of promising therapeutic agents that block one or more angiogenic pathways, a few of which have been approved by the FDA (e. g. , bevacizumab, sorafenib, sunitinib) for use as single agents or in combination with chemotherapy in specific populations of cancer patients (Sessa et al. 2008). There has also been a dramatic expansion in the exploration of novel anti-angiogenic agents pre-clinically and in clinical trials (Ferrara 2002). Some of the most promising data comes from the development of agents that inhibit one of the key growth factors involved in tumor angiogenesis – vascular endothelial growth factor (VEGF) (Ferrara et al. 2003). Bevacizumab is a monoclonal antibody against VEGF that was the first an- angiogenic agent that improved significantly the overall survival of patients with colorectal and non-squamous non-small cell lung cancer (Ferrara et al. 2005). Various agents that target tumor angiogenesis are currently under investigation in different cancer types in many clinical trials (Ferrara and Kerbel 2005). Dr. Tim Meyer is a Senior Lecturer in Medical Oncology at the UCL Cancer Institute in London where he specialises in gastrointestinal cancers and drug development. He trained in medicine at UCL and obtained his PhD from London University, after which he completed specialist training in medical oncology. His major research focus is antibody-based vascular targeting. Introduction Graeme J. Dougherty and David J. Chaplin Pre-clinical development The discovery and characterisation of tumour endothelial markers Dario Neri and Roy Bicknell The Use of Animal Models in the Assessment of Vascular Disrupting Agents R Barbara Pedley and Gillian M Tozer Combination therapy with chemotherapy and Vascular Disrupting Agents G. Taraboletti, K. Bonezzi and R. Giavazzi Lessons from Animal Imaging in Pre-Clinical Models Lesley D. McPhail and Simon P. Robinson Combining antiangiogenic drugs with vascular disrupting agents: Rationale and mechanisms of action Yuval Shaked, Paul Nathan, Laura G. Daenen, and Robert S. Kerbel Imaging in the development of vascular disruptive agents MRI to assess vascular disruptive agents Anwar Padhani and Martin Zweifel Contrast ultrasound in imaging tumor angiogenesis Grzegorz Korpanty and Rolf A. Brekken Clinical development The Clinical Development of Tubulin Binding Vascular Disruptive Agents Martin Zweifel and Gordon J.S.Rustin ASA404 (DMXAA): New Concepts in Tumour Vascular Targeting Therapy Bruce C. Baguley Vascular disruptive agents in combination with radiotherapy Henry C. Mandeville and Peter J. Hoskin
