A veritable gallium TRAP: Triazacyclononane‐phosphinic acid chelators (TRAP) form highly stable complexes with Ga3+ (see figure) extremely efficiently over a wide pH range. Homo‐ and heteromultimeric bioconjugates can be synthesized in a straightforward manner, all of which renders TRAP a chelator with ideal properties for 68Ga positron emission tomography (PET) imaging agent elaboration.
[EN] TRIAZACYCLONONANE-BASED PHOSPHINATE LIGAND AND ITS USE FOR MOLECULAR IMAGING<br/>[FR] LIGAND PHOSPHINATE À BASE DE TRIALSACYCLONONANE ET SON UTILISATION EN IMAGERIE MOLÉCULAIRE
申请人:UNIV MUENCHEN TECH
公开号:WO2012095347A9
公开(公告)日:2012-09-20
TRIAZACYCLONONANE-BASED PHOSPHINATE LIGAND AND ITS USE FOR MOLECULAR IMAGING
申请人:Scintomics GmbH
公开号:EP2663571B1
公开(公告)日:2015-08-12
Comparison of 68Ga-labeled RGD mono- and multimers based on a clickable siderophore-based scaffold
mono- < di- < trimeric peptide. The highest tumor uptake, tumor-to-background ratios, and image contrast were found for the dimeric [68Ga]GaMAFC(c(RGDfK)aza)2. In conclusion, we developed a novel strategy for direct, straight forward preparation of mono-, di-, and trimeric c(RGDfK) conjugates based on the FSC scaffold. Interestingly, the best αvβ3 imaging properties were found for the dimeric [68Ga]GaMAFC(c(RGDfK)aza)2