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Published on: February 3, 2023
Radiolabeled peptides: valuable tools for the detection and treatment of cancer
M Fani1, H R Maecke, S M Okarvi
11. Department of Nuclear Medicine, University Hospital Freiburg, Freiburg, Germany.
Abstract:
Human cancer cells overexpress many peptide receptors as molecular targets. Radiolabeled peptides that bind with high affinity and specificity to the receptors on tumor cells hold great potential for both diagnostic imaging and targeted radionuclide therapy. The advantage of solid-phase peptide synthesis, the availability of different chelating agents and prosthetic groups and bioconjugation techniques permit the facile preparation of a wide variety of peptide-based targeting molecules with diverse biological and tumor targeting properties. Some of these peptides, including somatostatin, bombesin, vasoactive intestinal peptide, gastrin, neurotensin, exendin and RGD are currently under investigation. It is anticipated that in the near future many of these peptides may find applications in nuclear oncology. This article presents recent developments in the field of small peptides, and their applications in the diagnosis and treatment of cancer.
Insights
Radiolabeled peptides target human cancer cells for imaging and therapy. These peptide-based agents show promise for nuclear oncology applications in cancer diagnosis and treatment.
Area of Science:
- Oncology
- Radiochemistry
- Molecular Imaging
Background:
- Human cancer cells frequently overexpress peptide receptors, serving as molecular targets.
- Radiolabeled peptides binding to these receptors offer potential for cancer diagnosis and targeted therapy.
- Solid-phase synthesis and bioconjugation enable diverse peptide-based targeting molecule development.
Purpose of the Study:
- To review recent advancements in small peptide applications for cancer diagnosis and treatment.
- To highlight the potential of peptide receptor targeting in nuclear oncology.
Main Methods:
- Investigating various peptide families like somatostatin, bombesin, and RGD for tumor targeting.
- Utilizing solid-phase peptide synthesis, chelating agents, and bioconjugation techniques.
- Exploring peptide-based molecules for diagnostic imaging and radionuclide therapy.
Main Results:
- Several peptide-based targeting agents are under active investigation.
- Peptide targeting demonstrates diverse biological and tumor-specific properties.
- The development of peptide-based agents facilitates targeted cancer interventions.
Conclusions:
- Peptide-based targeting molecules are crucial for advancing nuclear oncology.
- Future applications in cancer diagnosis and therapy are anticipated for these peptides.
- Small peptides represent a promising frontier in targeted cancer management.
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