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Current Pharmaceutical Biotechnology


ISSN (Print): 1389-2010
ISSN (Online): 1873-4316

The Potential of 11C-acetate PET for Monitoring the Fatty Acid Synthesis Pathway in Tumors

Author(s): Laura M. DeFord-Watts, Akiva Mintz and Steven J. Kridel

Volume 14, Issue 3, 2013

Page: [300 - 312] Pages: 13

DOI: 10.2174/1389201011314030006

Price: $65


Positron emission tomography (PET) is a molecular imaging modality that provides the opportunity to rapidly and non-invasively visualize tumors derived from multiple organs. In order to do so, PET utilizes radiotracers, such as 18F-FDG and 11C-acetate, whose uptake coincides with altered metabolic pathways within tumors. Increased expression and activity of enzymes in the fatty acid synthesis pathway is a frequent hallmark of cancer cells. As a result, this pathway has become a prime target for therapeutic intervention. Although multiple drugs have been developed that both directly and indirectly interfere with fatty acid synthesis, an optimal means to assess their efficacy is lacking. Given that 11Cacetate is directly linked to the fatty acid synthesis pathway, this probe provides a unique opportunity to monitor lipogenic tumors by PET. Herein, we review the relevance of the fatty acid synthesis pathway in cancer. Furthermore, we address the potential utility of 11C-acetate PET in imaging tumors, especially those that are not FDG-avid. Last, we discuss several therapeutic interventions that could benefit from 11C-acetate PET to monitor therapeutic response in patients with certain types of cancers.

Keywords: 11C-acetate, fatty acid synthesis, FDG, lipid, metabolism, positron emission tomography

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