• myGriffith
    • Staff portal
    • Contact Us⌄
      • Future student enquiries 1800 677 728
      • Current student enquiries 1800 154 055
      • International enquiries +61 7 3735 6425
      • General enquiries 07 3735 7111
      • Online enquiries
      • Staff phonebook
    View Item 
    •   Home
    • Griffith Research Online
    • Journal articles
    • View Item
    • Home
    • Griffith Research Online
    • Journal articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

  • All of Griffith Research Online
    • Communities & Collections
    • Authors
    • By Issue Date
    • Titles
  • This Collection
    • Authors
    • By Issue Date
    • Titles
  • Statistics

  • Most Popular Items
  • Statistics by Country
  • Most Popular Authors
  • Support

  • Contact us
  • FAQs
  • Admin login

  • Login
  • Synthesis and in Vivo Biological Evaluation of 68Ga-Labeled Carbonic Anhydrase IX Targeting Small Molecules for Positron Emission Tomography

    Author(s)
    Sneddon, Deborah
    Niemans, Raymon
    Bauwens, Matthias
    Yaromina, Ala
    van Kuijk, Simon JA
    Lieuwes, Natasja G
    Biemans, Rianne
    Pooters, Ivo
    Pellegrini, Paul A
    Lengkeek, Nigel A
    Greguric, Ivan
    Tonissen, Kathryn F
    Supuran, Claudiu T
    Lambin, Philippe
    Dubois, Ludwig
    Poulsen, Sally-Ann
    Griffith University Author(s)
    Poulsen, Sally-Ann
    Tonissen, Kathryn F.
    Sneddon, Deborah
    Year published
    2016
    Metadata
    Show full item record
    Abstract
    Tumor hypoxia contributes resistance to chemo- and radiotherapy, while oxygenated tumors are sensitive to these treatments. The indirect detection of hypoxic tumors is possible by targeting carbonic anhydrase IX (CA IX), an enzyme overexpressed in hypoxic tumors, with sulfonamide-based imaging agents. In this study, we present the design and synthesis of novel gallium-radiolabeled small-molecule sulfonamides targeting CA IX. The compounds display favorable in vivo pharmacokinetics and stability. We demonstrate that our lead compound, [68Ga]-2, discriminates CA IX-expressing tumors in vivo in a mouse xenograft model using ...
    View more >
    Tumor hypoxia contributes resistance to chemo- and radiotherapy, while oxygenated tumors are sensitive to these treatments. The indirect detection of hypoxic tumors is possible by targeting carbonic anhydrase IX (CA IX), an enzyme overexpressed in hypoxic tumors, with sulfonamide-based imaging agents. In this study, we present the design and synthesis of novel gallium-radiolabeled small-molecule sulfonamides targeting CA IX. The compounds display favorable in vivo pharmacokinetics and stability. We demonstrate that our lead compound, [68Ga]-2, discriminates CA IX-expressing tumors in vivo in a mouse xenograft model using positron emission tomography (PET). This compound shows specific tumor accumulation and low uptake in blood and clears intact to the urine. These findings were reproduced in a second study using PET/computed tomography. Small molecules investigated to date utilizing 68Ga for preclinical CA IX imaging are scarce, and this is one of the first effective 68Ga compounds reported for PET imaging of CA IX.
    View less >
    Journal Title
    Journal of Medicinal Chemistry
    Volume
    59
    Issue
    13
    DOI
    https://doi.org/10.1021/acs.jmedchem.6b00623
    Subject
    Medicinal and Biomolecular Chemistry not elsewhere classified
    Medicinal and Biomolecular Chemistry
    Organic Chemistry
    Pharmacology and Pharmaceutical Sciences
    Publication URI
    http://hdl.handle.net/10072/100269
    Collection
    • Journal articles

    Footer

    Disclaimer

    • Privacy policy
    • Copyright matters
    • CRICOS Provider - 00233E

    Tagline

    • Gold Coast
    • Logan
    • Brisbane - Queensland, Australia
    First Peoples of Australia
    • Aboriginal
    • Torres Strait Islander