Abstract
2-[18F]-Fluoro-3-pyridinecarboxaldehyde ([18F]FPCA) is a novel, water-soluble prosthetic group. It's radiochemistry has been developed and fully-automated for application in chemoselective radiolabelling of amino(oxy)-derivatised RI-OR2-TAT peptide, (Aoa-k)-RI-OR2-TAT, using a GE TRACERlab FX-FN. RI-OR2-TAT is a brain-penetrant, retro-inverso peptide that binds to amyloid species associated with Alzheimer's Disease. Radiolabelled (Aoa-k)-RI-OR2-TAT was reproducibly synthesised and the product of the reaction with FPCA has been fully characterised. In-vivo biodistribution of [18F]RI-OR2-TAT has been measured in Wistar rats.
Original language | English |
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Pages (from-to) | 120-127 |
Number of pages | 8 |
Journal | Applied Radiation and Isotopes |
Volume | 116 |
Early online date | 27 Jul 2016 |
DOIs | |
Publication status | Published - Oct 2016 |
Bibliographical note
Funding Information:We gratefully acknowledge the support of the MRC and GE Healthcare for funding the studentship (Grant no. MR/J012521/1 ). This work was funded by a Pilot Grant from Alzheimer's Research UK (ref. ARUK-PPG2012B-16). The authors would like to thank Lancaster University, as well as the WMIC radiochemistry and pre-clinical teams for their support.
Publisher Copyright:
© 2016 The Authors
Keywords
- Aβ peptide
- Chemical ligation
- Oxime bond
- PET
- [F]F prosthetic group
ASJC Scopus subject areas
- Radiation