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Current Medicinal Chemistry - Anti-Cancer Agents


ISSN (Print): 1568-0118
ISSN (Online): 1875-5968

Antiangiogenesis and Radiotherapy: What Is the Role of Combined Modality Treatment?

Author(s): Johannes Classen and Wilfried Budach

Volume 3 , Issue 5 , 2003

Page: [375 - 382] Pages: 8

DOI: 10.2174/1568011033482305

Price: $65


The formation of new blood vessels is a prerequisite for the growth of primary and metastatic tumour. Thus, strategies that aim at the inhibition of tumour angiogenesis have gained considerable interest in recent years. Furthermore, there is a need to identify the role of antiangiogenic agents in conjunction with conventional anticancer modalities like chemotherapy or radiotherapy. It is the objective of this review to summarise experimental data for different antiangiogenic agents used for combined modality experiments with radiotherapy. Promising data have been reported for a series of antiangiogenic agents for combined modality treatment with radiotherapy using tumour growth delay as the primary end-point. Yet, the results from different agents with various tumour lines are contradictory in part. Furthermore, enhancement of local tumour control, the main objective of curative radiotherapy, has so far been demonstrated for only two agents (DC101 and CA4DP), while experiments using TNP-470 even revealed a reduction of local tumour control when combined with irradiation. Finally, detailed studies investigating the modulation of normal tissue reactions for the combination of radiotherapy and inhibitors of angiogenesis are pending so far. Thus, experimental data currently available do not consistently support the beneficial effects of combined modality treatment with inhibitors of angiogenesis and radiotherapy. We therefore conclude that there is still a long way to go until we know which antiangiogenic agent will clinically be suitable for what tumour entity for combined treatment of radiotherapy and inhibitors of angiogenesis.

Keywords: angiogenesis, radiotherapy, antivascular treatment, antiangiogenic treatment, tcd50, growth delay

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