Publication
Title
Trans-cyclooctene - a Swiss army knife for bioorthogonal chemistry : exploring the synthesis, reactivity, and applications in biomedical breakthroughs
Author
Abstract
Background Trans-cyclooctenes (TCOs) are highly strained alkenes with remarkable reactivity towards tetrazines (Tzs) in inverse electron-demand Diels-Alder reactions. Since their discovery as bioorthogonal reaction partners, novel TCO derivatives have been developed to improve their reactivity, stability, and hydrophilicity, thus expanding their utility in diverse applications. Main body TCOs have garnered significant interest for their applications in biomedical settings. In chemical biology, TCOs serve as tools for bioconjugation, enabling the precise labeling and manipulation of biomolecules. Moreover, their role in nuclear medicine is substantial, with TCOs employed in the radiolabeling of peptides and other biomolecules. This has led to their utilization in pretargeted nuclear imaging and therapy, where they function as both bioorthogonal tags and radiotracers, facilitating targeted disease diagnosis and treatment. Beyond these applications, TCOs have been used in targeted cancer therapy through a "click-to-release" approach, in which they act as key components to selectively deliver therapeutic agents to cancer cells, thereby enhancing treatment efficacy while minimizing off-target effects. However, the search for a suitable TCO scaffold with an appropriate balance between stability and reactivity remains a challenge. Conclusions This review paper provides a comprehensive overview of the current state of knowledge regarding the synthesis of TCOs, and its challenges, and their development throughout the years. We describe their wide ranging applications as radiolabeled prosthetic groups for radiolabeling, as bioorthogonal tags for pretargeted imaging and therapy, and targeted drug delivery, with the aim of showcasing the versatility and potential of TCOs as valuable tools in advancing biomedical research and applications.
Language
English
Source (journal)
EJNMMI Radiopharmacy and Chemistry / European Association of Nuclear Medicine (EANM)
Publication
London : Springernature , 2024
ISSN
2365-421X
DOI
10.1186/S41181-024-00275-X
Volume/pages
9 :1 (2024) , p. 1-56
Article Reference
47
ISI
001244328300001
Pubmed ID
38844698
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Project info
Development of new TCO-probes and their evaluation for a novel pre-targeted intracellular PET imaging strategy.
Development of new TCO-probes and their evaluation for a novel pre-targeted intracellular PET imaging strategy.
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier c:irua:206488
Creation 02.07.2024
Last edited 22.04.2025
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