Research
Print page Print page
Switch language
Rigshospitalet - a part of Copenhagen University Hospital
Published

Development of the First Aliphatic 18F-Labeled Tetrazine Suitable for Pretargeted PET Imaging-Expanding the Bioorthogonal Tool Box

Research output: Contribution to journalJournal articleResearchpeer-review

  1. A convolutional neural network for total tumor segmentation in [64Cu]Cu-DOTATATE PET/CT of patients with neuroendocrine neoplasms

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Multi-parametric PET/MRI for enhanced tumor characterization of patients with cervical cancer

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Deep learning for Dixon MRI-based attenuation correction in PET/MRI of head and neck cancer patients

    Research output: Contribution to journalJournal articleResearchpeer-review

View graph of relations

Pretargeted imaging of nanomedicines have attracted considerable interest because it has the potential to increase imaging contrast while reducing radiation burden to healthy tissue. Currently, the tetrazine ligation is the fastest bioorthogonal reaction for this strategy and, consequently, the state-of-art choice for in vivo chemistry. We have recently identified key properties for tetrazines in pretargeting. We have also developed a method to 18F-label reactive tetrazines using an aliphatic nucleophilic substitution strategy. Here, we combined this knowledge and developed an 18F-labeled tetrazine for pretargeted imaging. In order to develop this ligand, a small SAR study was performed. The most promising compound was selected for labeling and subsequent positron-emission-tomography in vivo imaging. Radiolabeling was achieved in satisfactory yields, molar activities, and high radiochemical purities. [18F]15 displayed favorable pharmacokinetics and remarkable target-to-background ratios-as early as 1 h post injection. We believe that this agent could be a promising candidate for translation into clinical studies.

Original languageEnglish
JournalJournal of Medicinal Chemistry
Volume64
Issue number20
Pages (from-to)15297-15312
Number of pages16
ISSN0022-2623
DOIs
Publication statusPublished - 28 Oct 2021

    Research areas

  • Animals, Cell Line, Tumor, Drug Development, Female, Fluorine Radioisotopes, Humans, Isotope Labeling, Mice, Mice, Inbred BALB C, Mice, Nude, Molecular Structure, Neoplasms, Experimental/diagnostic imaging, Positron-Emission Tomography, Radiopharmaceuticals/chemical synthesis

ID: 73996014