Review Article
Research progress of new tumor imaging agent 68Ga-FAPIs
Wang Jingyi, Yang Weidong, Wang Jing
Published 2021-06-25
Cite as Chin J Nucl Med Mol Imaging, 2021, 41(6): 374-377. DOI: 10.3760/cma.j.cn321828-20200313-00100
Abstract
18F-fluorodeoxyglucose (FDG) is the most commonly used broad-spectrum tumor imaging agent, but there are certain limitations in the application of some tumors. Fibroblast activation protein (FAP) is selectively expressed in more than 90% of malignant epithelial tumors, while it is hardly expressed in normal tissues and benign tumors. FAP inhibitors (FAPIs) specifically bind to FAP and selectively target FAP-positive tissues. In recent years, it has been reported that radionuclide-labeled FAPIs, such as 68Ga-FAPIs, are safe and reliable in tumor imaging and have low tissue background. They can also be used to image a variety of solid tumors, which are expected to be new tumor broad-spectrum imaging agents and play a greater role in clinical applications. This article reviews the recent progress of FAPIs in tumor imaging and diagnosis at home and abroad.
Key words:
Quinolines; Gallium radioisotopes; Positron-emission tomography; Trends
Contributor Information
Wang Jingyi
Department of Nuclear Medicine, 1st Affiliated Hospital of Fourth Military Medical University, Xi′an 710032, China
Yang Weidong
Department of Nuclear Medicine, 1st Affiliated Hospital of Fourth Military Medical University, Xi′an 710032, China
Wang Jing
Department of Nuclear Medicine, 1st Affiliated Hospital of Fourth Military Medical University, Xi′an 710032, China