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Translational assessment of a DATA-functionalized FAP inhibitor with facile (68)Ga-labeling at room temperature
PURPOSE: The present study aims at evaluating the preclinical and the clinical performance of [(68)Ga]Ga-DATA(5m.)SA.FAPi, which has the advantage to be labeled with gallium-68 at room temperature. METHODS: [(68)Ga]Ga-DATA(5m).SA.FAPi was assessed in vitro on FAP-expressing stromal cells, followed b...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10541845/ https://www.ncbi.nlm.nih.gov/pubmed/37284857 http://dx.doi.org/10.1007/s00259-023-06285-2 |
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author | Escudero-Castellanos, Alondra Kurth, Jens Imlimthan, Surachet Menéndez, Elena Pilatis, Eirinaios Moon, Euy Sung Läppchen, Tilman Rathke, Hendrik Schwarzenböck, Sarah M. Krause, Bernd J. Rösch, Frank Rominger, Axel Gourni, Eleni |
author_facet | Escudero-Castellanos, Alondra Kurth, Jens Imlimthan, Surachet Menéndez, Elena Pilatis, Eirinaios Moon, Euy Sung Läppchen, Tilman Rathke, Hendrik Schwarzenböck, Sarah M. Krause, Bernd J. Rösch, Frank Rominger, Axel Gourni, Eleni |
author_sort | Escudero-Castellanos, Alondra |
collection | PubMed |
description | PURPOSE: The present study aims at evaluating the preclinical and the clinical performance of [(68)Ga]Ga-DATA(5m.)SA.FAPi, which has the advantage to be labeled with gallium-68 at room temperature. METHODS: [(68)Ga]Ga-DATA(5m).SA.FAPi was assessed in vitro on FAP-expressing stromal cells, followed by biodistribution and in vivo imaging on prostate and glioblastoma xenografts. Moreover, the clinical assessment of [(68)Ga]Ga-DATA(5m).SA.FAPi was conducted on six patients with prostate cancer, aiming on investigating, biodistribution, biokinetics, and determining tumor uptake. RESULTS: [(68)Ga]Ga-DATA(5m).SA.FAPi is quantitatively prepared in an instant kit-type version at room temperature. It demonstrated high stability in human serum, affinity for FAP in the low nanomolar range, and high internalization rate when associated with CAFs. Biodistribution and PET studies in prostate and glioblastoma xenografts revealed high and specific tumor uptake. Elimination of the radiotracer mainly occurred through the urinary tract. The clinical data are in accordance with the preclinical data concerning the organ receiving the highest absorbed dose (urinary bladder wall, heart wall, spleen, and kidneys). Different to the small-animal data, uptake of [(68)Ga]Ga-DATA(5m).SA.FAPi in tumor lesions is rapid and stable and tumor-to-organ and tumor-to-blood uptake ratios are high. CONCLUSION: The radiochemical, preclinical, and clinical data obtained in this study strongly support further development of [(68)Ga]Ga-DATA(5m).SA.FAPi as a diagnostic tool for FAP imaging. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00259-023-06285-2. |
format | Online Article Text |
id | pubmed-10541845 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-105418452023-10-02 Translational assessment of a DATA-functionalized FAP inhibitor with facile (68)Ga-labeling at room temperature Escudero-Castellanos, Alondra Kurth, Jens Imlimthan, Surachet Menéndez, Elena Pilatis, Eirinaios Moon, Euy Sung Läppchen, Tilman Rathke, Hendrik Schwarzenböck, Sarah M. Krause, Bernd J. Rösch, Frank Rominger, Axel Gourni, Eleni Eur J Nucl Med Mol Imaging Original Article PURPOSE: The present study aims at evaluating the preclinical and the clinical performance of [(68)Ga]Ga-DATA(5m.)SA.FAPi, which has the advantage to be labeled with gallium-68 at room temperature. METHODS: [(68)Ga]Ga-DATA(5m).SA.FAPi was assessed in vitro on FAP-expressing stromal cells, followed by biodistribution and in vivo imaging on prostate and glioblastoma xenografts. Moreover, the clinical assessment of [(68)Ga]Ga-DATA(5m).SA.FAPi was conducted on six patients with prostate cancer, aiming on investigating, biodistribution, biokinetics, and determining tumor uptake. RESULTS: [(68)Ga]Ga-DATA(5m).SA.FAPi is quantitatively prepared in an instant kit-type version at room temperature. It demonstrated high stability in human serum, affinity for FAP in the low nanomolar range, and high internalization rate when associated with CAFs. Biodistribution and PET studies in prostate and glioblastoma xenografts revealed high and specific tumor uptake. Elimination of the radiotracer mainly occurred through the urinary tract. The clinical data are in accordance with the preclinical data concerning the organ receiving the highest absorbed dose (urinary bladder wall, heart wall, spleen, and kidneys). Different to the small-animal data, uptake of [(68)Ga]Ga-DATA(5m).SA.FAPi in tumor lesions is rapid and stable and tumor-to-organ and tumor-to-blood uptake ratios are high. CONCLUSION: The radiochemical, preclinical, and clinical data obtained in this study strongly support further development of [(68)Ga]Ga-DATA(5m).SA.FAPi as a diagnostic tool for FAP imaging. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00259-023-06285-2. Springer Berlin Heidelberg 2023-06-07 2023 /pmc/articles/PMC10541845/ /pubmed/37284857 http://dx.doi.org/10.1007/s00259-023-06285-2 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Original Article Escudero-Castellanos, Alondra Kurth, Jens Imlimthan, Surachet Menéndez, Elena Pilatis, Eirinaios Moon, Euy Sung Läppchen, Tilman Rathke, Hendrik Schwarzenböck, Sarah M. Krause, Bernd J. Rösch, Frank Rominger, Axel Gourni, Eleni Translational assessment of a DATA-functionalized FAP inhibitor with facile (68)Ga-labeling at room temperature |
title | Translational assessment of a DATA-functionalized FAP inhibitor with facile (68)Ga-labeling at room temperature |
title_full | Translational assessment of a DATA-functionalized FAP inhibitor with facile (68)Ga-labeling at room temperature |
title_fullStr | Translational assessment of a DATA-functionalized FAP inhibitor with facile (68)Ga-labeling at room temperature |
title_full_unstemmed | Translational assessment of a DATA-functionalized FAP inhibitor with facile (68)Ga-labeling at room temperature |
title_short | Translational assessment of a DATA-functionalized FAP inhibitor with facile (68)Ga-labeling at room temperature |
title_sort | translational assessment of a data-functionalized fap inhibitor with facile (68)ga-labeling at room temperature |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10541845/ https://www.ncbi.nlm.nih.gov/pubmed/37284857 http://dx.doi.org/10.1007/s00259-023-06285-2 |
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