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Radiolabeled Peptides in Nuclear Oncology: Influence of Peptide Structure and Labeling Strategy on Pharmacology

  • H. R. Maecke
Part of the Ernst Schering Research Foundation Workshop book series (SCHERING FOUND, volume 49)

3.5 Summary and Conclusions

Radiometallo-labeled analogs of SS have shown great benefit in the in vivo localization and targeted radiotherapy of human tumors. The progress and innovation in this clinical application came from the change in strategy, leaving the most widely used radiohalogens for a coordination chemistry approach. The use of chelators appended to the biologically active peptide which convey high thermodynamic and kinetic stability to the radiopeptides did not only improve the pharmacokinetics and pharmacodynamics of the molecules, but surprisingly the biological potency as well.

The most urgent problem to be solved in the field is to improve the kidney clearance of the radiopeptides. The kidney turned out to be the dose-limiting organ in this type of targeted radiotherapy. Coordination chemical strategies have already paved the way to a successful clinical application; it is most likely that chelator modification will further help to improve the renal handling of radiometallo-peptides.

Keywords

Linear Energy Transfer Diacetic Acid Affinity Profile Kidney Clearance Nuclear Oncology 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • H. R. Maecke
    • 1
  1. 1.Institute of Nuclear Medicine, Division of Radiological ChemistryUniversity Hospital BaselBaselSwitzerland

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