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Updated: Aug 10, 2026

Investigations on the Ga(III) Complex of EOB-DTPA and Its 68Ga Radiolabeled Analogue
Published on: August 17, 2016
Gastrin releasing peptide (GRP) receptor targeted radiopharmaceuticals: a concise update
C J Smith1, W A Volkert, T J Hoffman
1Radiopharmaceutical Sciences Institute, University of Missouri, Columbia, MO 65211, USA.
Abstract:
The gastrin releasing peptide (GRP) receptor is becoming an increasingly attractive target for development of new radiolabeled peptides with diagnostic and therapeutic potential. The attractiveness of the GRP receptor as a target is based upon the functional expression of GRP receptors in several tumors of neuroendocrine origin including prostate, breast, and small cell lung cancer. This concise review outlines some of the efforts currently underway to develop new GRP receptor specific radiopharmaceuticals by employing a variety of radiometal chelation systems.
Insights
Radiolabeled peptides targeting the gastrin releasing peptide (GRP) receptor show promise for cancer diagnosis and therapy. Research focuses on developing new GRP receptor-specific radiopharmaceuticals using various radiometal chelation systems.
Area of Science:
- Oncology
- Radiochemistry
- Molecular Imaging
Background:
- The gastrin releasing peptide (GRP) receptor is functionally expressed in neuroendocrine tumors, including prostate, breast, and small cell lung cancer.
- This expression makes the GRP receptor an attractive target for developing novel diagnostic and therapeutic agents.
Purpose of the Study:
- To review current efforts in developing new GRP receptor-specific radiopharmaceuticals.
- To highlight the application of various radiometal chelation systems in this development.
Main Methods:
- Review of existing research on GRP receptor-targeting radiopharmaceuticals.
- Analysis of different radiometal chelation strategies employed.
Main Results:
- Several approaches are being explored to create GRP receptor-specific radiolabeled peptides.
- Various radiometal chelation systems are utilized to achieve diagnostic and therapeutic potential.
Conclusions:
- The GRP receptor is a promising target for developing targeted cancer therapies and diagnostics.
- Advancements in radiometal chelation systems are crucial for creating effective GRP receptor-based radiopharmaceuticals.
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