<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p><bold>Background.</bold> Given the critical role of tumor vasculature in tumor development, considerable efforts have been spent on developing therapeutic strategies targeting the tumor vascular network. A variety of agents have been developed, with two general approaches being pursued. Antiangiogenic agents (AAs) aim to interfere with the process of angiogenesis, preventing new tumor blood vessel formation. Vascular-disrupting agents (VDAs) target existing tumor vessels causing tumor ischemia and necrosis. Despite their great therapeutic potential, it has become clear that their greatest clinical utility may lie in combination with conventional anticancer therapies. Radiotherapy is a widely used treatment modality for cancer with its distinct therapeutic challenges. Thus, combining the two approaches seems reasonable.</p><p><bold>Conclusions.</bold> Strong biological rationale exist for combining vascular-targeted therapies with radiation. AAs and VDAs were shown to alter the tumor microenvironment in such a way as to enhance responses to radiation. The results of preclinical and early clinical studies have confirmed the therapeutic potential of this new treatment strategy in the clinical setting. However, concerns about increased normal tissue toxicity, have been raised.</p></abstract>

Background. Given the critical role of tumor vasculature in tumor development, considerable efforts have been spent on developing therapeutic strategies targeting the tumor vascular network. A variety of agents have been developed, with two general approaches being pursued. Antiangiogenic agents (AAs) aim to interfere with the process of angiogenesis, preventing new tumor blood vessel formation. Vascular-disrupting agents (VDAs) target existing tumor vessels causing tumor ischemia and necrosis. Despite their great therapeutic potential, it has become clear that their greatest clinical utility may lie in combination with conventional anticancer therapies. Radiotherapy is a widely used treatment modality for cancer with its distinct therapeutic challenges. Thus, combining the two approaches seems reasonable.Conclusions. Strong biological rationale exist for combining vascular-targeted therapies with radiation. AAs and VDAs were shown to alter the tumor microenvironment in such a way as to enhance responses to radiation. The results of preclinical and early clinical studies have confirmed the therapeutic potential of this new treatment strategy in the clinical setting. However, concerns about increased normal tissue toxicity, have been raised.

Radiotherapy in combination with vascular-targeted therapies

Institute of Oncology Ljubljana, Ljubljana, Slovenia

Radiology and Oncology

{"article-title":"Radiotherapy in combination with vascular-targeted therapies"}

Background. Given the critical role of tumor vasculature in tumor development, considerable efforts have been spent on developing therapeutic strategies...

Radiotherapy in combination with vascular-targeted therapies

Online veröffentlicht: 24. Mai 2010

Seitenbereich: 67 - 78

DOI: https://doi.org/10.2478/v10019-010-0025-9

Schlüsselwörter
antiangiogenic agents, vascular-disrupting agents, radiotherapy

This content is open access.

Radiotherapy in combination with vascular-targeted therapies

Online veröffentlicht: 24. Mai 2010

Seitenbereich: 67 - 78

DOI: https://doi.org/10.2478/v10019-010-0025-9

Schlüsselwörterantiangiogenic agents, vascular-disrupting agents, radiotherapy

This content is open access.

Schlüsselwörter
antiangiogenic agents, vascular-disrupting agents, radiotherapy