Development of a novel antibody-tetrazine conjugate for bioorthogonal pretargeting
Organic and Biomolecular Chemistry, ISSN: 1477-0520, Vol: 14, Issue: 31, Page: 7544-7551
2016
- 43Citations
- 82Captures
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Metrics Details
- Citations43
- Citation Indexes40
- 40
- CrossRef37
- Patent Family Citations3
- 3
- Captures82
- Readers82
- 82
Article Description
Recently, bioorthogonal chemistry based on the Inverse Electron-Demand Diels-Alder (IEDDA) cycloaddition between 1,2,4,5-tetrazines and trans-cyclooctene (TCO) analogues added an interesting dimension to molecular imaging. Until now, antibodies (Abs) were tagged with TCO and after pretargeting they were reacted with tetrazines substituted with reporters. However, TCO tags have the tendency to degrade under physiological conditions, and due to their hydrophobic nature are buried within the protein. This results in loss of reactivity and a low Ab functional loading. To circumvent these problems, we report for the first time an approach in which tetrazines are used as tags for antibody (Ab) modification, and TCO as the imaging agent. We developed a new Ab-tetrazine conjugate, which displays a high functional loading, good stability and reactivity. We utilized this immunoconjugate for live-cell imaging together with novel TCO probes, resulting in selective and rapid labeling of SKOV-3 cells. Our approach may be useful for in vivo pretargeted imaging.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84981186365&origin=inward; http://dx.doi.org/10.1039/c6ob01411a; http://www.ncbi.nlm.nih.gov/pubmed/27431745; https://xlink.rsc.org/?DOI=C6OB01411A; http://xlink.rsc.org/?DOI=C6OB01411A; http://pubs.rsc.org/en/content/articlepdf/2016/OB/C6OB01411A; https://dx.doi.org/10.1039/c6ob01411a; https://pubs.rsc.org/en/content/articlelanding/2016/ob/c6ob01411a
Royal Society of Chemistry (RSC)
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