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      1. Author :
        Christoph Bremer; Ching-Hsuan Tung; Ralph Weissleder
      2. Title :
      3. Type :
        Journal Article
      4. Year :
      5. Publication :
        Nature Medicine
      6. Products :
      7. Volume :
      8. Issue :
      9. Page Numbers :
      10. Research Area :
      11. Keywords :
        near-infrared; near infrared; matrix metalloproteinase; MMP; in vivo imaging; near-infrared fluorescence imaging
      12. Abstract :
        A number of different matrix metalloproteinase (MMP) inhibitors have been developed as cytostatic and anti-angiogenic agents and are currently in clinical testing. One major hurdle in assessing the efficacy of such drugs has been the inability to sense or image anti-proteinase activity directly and non-invasively in vivo. We show here that novel, biocompatible near-infrared fluorogenic MMP substrates can be used as activatable reporter probes to sense MMP activity in intact tumors in nude mice. Moreover, we show for the first time that the effect of MMP inhibition can be directly imaged using this approach within hours after initiation of treatment using the potent MMP inhibitor, prinomastat (AG3340). The developed probes, together with novel near-infrared fluorescence imaging technology will enable the detailed analysis of a number of proteinases critical for advancing the therapeutic use of clinical proteinase inhibitors.
      13. URL :
      14. Call Number :
        PKI @ sarah.piper @
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