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      1. Author :
        Ran, C.; Zhang, Z.; Hooker, J.; Moore, A.
      2. Title :
      3. Type :
        Journal Article
      4. Year :
        2012
      5. Publication :
        Mol Imaging Biol
      6. Products :
      7. Volume :
        14
      8. Issue :
        N/A
      9. Page Numbers :
        N/A
      10. Research Area :
        N/A
      11. Keywords :
        MDA-MB-231-D3H1, MDA-MB-231-luc-D3H1, IVIS, Bioware, Breast Cancer. Animals; Cell Line, Tumor; Chromatography, Liquid; Diagnostic Imaging/*methods; *Elementary Particles; Firefly Luciferin/chemistry/metabolism; Fluorodeoxyglucose F18/diagnostic use; Humans; *Light; Luminescent Measurements; Mass Spectrometry; Mice; Mice, Nude; Solutions
      12. Abstract :
        PURPOSE: The poor tissue penetration of visible light has been a major barrier for optical imaging, photoactivatable conversions, and photodynamic therapy for in vivo targets with depths beyond 10 mm. In this report, as a proof-of-concept, we demonstrated that a positron emission tomography (PET) radiotracer, 2-deoxy-2-[(18)F]fluoro-D-glucose ((18)FDG), could be used as an alternative light source for photoactivation. PROCEDURES: We utilized (18)FDG, which is a metabolic activity-based PET probe, as a source of light to photoactivate caged luciferin in a breast cancer animal model expressing luciferase. RESULTS: Bioluminescence produced from luciferin allowed for the real-time monitoring of Cherenkov radiation-promoted uncaging of the substrate. CONCLUSION: The proposed method may provide a very important option for in vivo photoactivation, in particular for activation of photosensitizers for photodynamic therapy and eventually for combining radioisotope therapy and photodynamic therapy.
      13. URL :
        http://www.ncbi.nlm.nih.gov/pubmed/21538154
      14. Call Number :
        PKI @ kd.modi @ 3
      15. Serial :
        10517