Synthesis and biological results of the technetium-99m-labeled 4-nitroimidazole for imaging tumor hypoxia

Bioorg Med Chem Lett. 2004 Feb 9;14(3):747-9. doi: 10.1016/j.bmcl.2003.11.017.

Abstract

1-(4-Nitroimidazole-1-yl)-propanhydroxyiminoamide (N4IPA) was synthesized. The biodistribution of 99mTc-N4IPA in mice bearing S180 tumor demonstrated that the complex showed accumulation in tumor and slow clearance from it. The tumor-to-tissue uptake ratios increase with time. These results suggest that 99mTc-N4IPA would be a marker for imaging tumor hypoxia.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Hypoxia*
  • Male
  • Mice
  • Nitroimidazoles* / chemical synthesis
  • Organotechnetium Compounds* / chemical synthesis
  • Radionuclide Imaging
  • Sarcoma 180 / diagnostic imaging*
  • Tissue Distribution

Substances

  • Nitroimidazoles
  • Organotechnetium Compounds
  • 4-nitroimidazole