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      1. Author :
        Neal K. Devaraj; Ralph Weissleder; Scott A. Hilderbrand
      2. Title :
      3. Type :
        Journal Article
      4. Year :
        2008
      5. Publication :
        Bioconjugate Chemistry
      6. Products :
      7. Volume :
        19
      8. Issue :
        12
      9. Page Numbers :
        N/A
      10. Research Area :
        Cancer
      11. Keywords :
        in vivo labelling; breast cancer; in vivo imaging
      12. Abstract :
        Bioorthogonal tetrazine cycloadditions have been applied to live cell labeling. Tetrazines react irreversibly with the strained dienophile norbornene forming dihydropyrazine products and dinitrogen. The reaction is high yielding, selective, and fast in aqueous media. Her2/neu receptors on live human breast cancer cells were targeted with a monoclonal antibody modified with a norbornene. Tetrazines conjugated to a near-infrared fluorochrome selectively and rapidly label the pretargeted antibody in the presence of serum. These findings indicate that this chemistry is suitable for in vitro labeling experiments, and suggests that it may prove a useful strategy for in vivo pretargeted imaging under numerous modalities.
      13. URL :
        http://pubs.acs.org/doi/abs/10.1021/bc8004446
      14. Call Number :
        PKI @ sarah.piper @
      15. Serial :
        4499