Abstract
Molecular imaging of biological processes may allow detection of therapy effects before the tumor is reduced in size. The most frequently used PET tracer in oncology, 2-[18F]fluoro-2-deoxyglucose (FDG), suffers from low specificity due to uptake in inflammatory cells. The proliferation marker, 3-[18F]fluoro-3-deoxy-L-thymidine (FLT), is less influenced by the inflammatory response following therapy but here disease- and drug-specific effects need to be considered. Since cancer therapy mainly intends to eliminate cancer cells, imaging of cell death offers a direct way to image therapy response. This review gives an overview of the radiopharmaceutical development and in vivo evaluation of radioligands that have emerged so far for detection and assessment of apoptosis and necrosis. Two radiopharmaceuticals that can image cell death have made it to clinical trials for follow up of tumor treatment: i) 99mTc-and 123I-labelled AnxA5 for the response to treatment of for example lymphoma and lung cancer and ii) 18F-ML10 for the evaluation of brain tumors post-radiation. Other agents need further optimization.
Keywords: Apoptosis, AnnexinA5, 18F-ML10, molecular imaging of therapy response, F]fluoro-3'-deoxy-L-thymidine (FLT), cancer cells, Molecular imaging of biological processes, cell death offers, radiopharmaceutical development, tumor treatment, lymphoma, clinical trials, morphologic imaging techniques, lung cancer, computed tomography (CT)
Current Pharmaceutical Biotechnology
Title: Apoptosis Imaging to Monitor Cancer Therapy: The Road to Fast Treatment Evaluation?
Volume: 13 Issue: 4
Author(s): Marijke De Saint-Hubert, Matthias Bauwens, Alfons Verbruggen and Felix M. Mottaghy
Affiliation:
Keywords: Apoptosis, AnnexinA5, 18F-ML10, molecular imaging of therapy response, F]fluoro-3'-deoxy-L-thymidine (FLT), cancer cells, Molecular imaging of biological processes, cell death offers, radiopharmaceutical development, tumor treatment, lymphoma, clinical trials, morphologic imaging techniques, lung cancer, computed tomography (CT)
Abstract: Molecular imaging of biological processes may allow detection of therapy effects before the tumor is reduced in size. The most frequently used PET tracer in oncology, 2-[18F]fluoro-2-deoxyglucose (FDG), suffers from low specificity due to uptake in inflammatory cells. The proliferation marker, 3-[18F]fluoro-3-deoxy-L-thymidine (FLT), is less influenced by the inflammatory response following therapy but here disease- and drug-specific effects need to be considered. Since cancer therapy mainly intends to eliminate cancer cells, imaging of cell death offers a direct way to image therapy response. This review gives an overview of the radiopharmaceutical development and in vivo evaluation of radioligands that have emerged so far for detection and assessment of apoptosis and necrosis. Two radiopharmaceuticals that can image cell death have made it to clinical trials for follow up of tumor treatment: i) 99mTc-and 123I-labelled AnxA5 for the response to treatment of for example lymphoma and lung cancer and ii) 18F-ML10 for the evaluation of brain tumors post-radiation. Other agents need further optimization.
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De Saint-Hubert Marijke, Bauwens Matthias, Verbruggen Alfons and M. Mottaghy Felix, Apoptosis Imaging to Monitor Cancer Therapy: The Road to Fast Treatment Evaluation?, Current Pharmaceutical Biotechnology 2012; 13 (4) . https://dx.doi.org/10.2174/138920112799436320
DOI https://dx.doi.org/10.2174/138920112799436320 |
Print ISSN 1389-2010 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4316 |
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