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PSMA-Targeting Positron Emission Agents for Imaging Solid Tumors Other Than Non-Prostate Carcinoma: A Systematic Review

1
Department of Nuclear Medicine, AZ Groeninge, 8500 Kortrijk, Belgium
2
Department of Nuclear Medicine and Radiology, University Ghent, 9000 GHent, Belgium
3
Department of Nuclear Medicine, University of Pretoria, 0001 Pretoria, South-Africa
4
Laboratory of Drug Quality and Registration, University Ghent, 9000 Ghent, Belgium
5
Department of Imaging and Pathology, KULAK, University of Leuven, 3000 Leuven, Belgium
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2019, 20(19), 4886; https://doi.org/10.3390/ijms20194886
Received: 2 September 2019 / Revised: 30 September 2019 / Accepted: 30 September 2019 / Published: 2 October 2019
(This article belongs to the Special Issue Cancer Molecular Imaging)
Despite its name, prostate-specific membrane antigen (PSMA) has been shown using immunohistochemistry (IHC) to also be over-expressed in the tumor neovasculature of a wide variety of solid tumors other than prostate carcinoma. Accordingly, positron-emitting radiolabeled small molecules targeting PSMA, initially developed for positron emission tomography in prostate carcinomas, are currently being explored for their staging and restaging potential as an alternative imaging modality in other solid tumor types where 18-F-fluorodeoxyglucose (FDG)-PET imaging has low diagnostic accuracy. In this paper, the currently available literature in this field is reviewed. Preliminary, mainly retrospective studies are encouraging, with evidence of improved diagnostic sensitivity and specificity in clear cell renal carcinoma, glioma, and hepatocellular carcinoma, leading to a change in patient management in several patients. However, the results published thus far warrant confirmation by larger prospective studies additionally assessing the longitudinal impact on patient outcomes. View Full-Text
Keywords: PSMA; positron emission tomography (PET); non prostate carcinoma PSMA; positron emission tomography (PET); non prostate carcinoma
MDPI and ACS Style

Van de Wiele, C.; Sathekge, M.; de Spiegeleer, B.; de Jonghe, P.J.; Beels, L.; Maes, A. PSMA-Targeting Positron Emission Agents for Imaging Solid Tumors Other Than Non-Prostate Carcinoma: A Systematic Review. Int. J. Mol. Sci. 2019, 20, 4886.

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