Peptide Applications advanced
Peptide Imaging Agents
Guide to radiolabeled peptides as imaging agents in PET, SPECT, and fluorescence imaging.
By Encyclopeptide Editorial | 1 min read
imaging radiolabeled pet application
Overview
Peptide imaging agents use receptor-targeting peptides conjugated to radionuclides or fluorophores for molecular imaging.
Modalities
- PET imaging: Ga-68, F-18, Cu-64 labeled peptides
- SPECT imaging: Tc-99m, In-111 labeled peptides
- Fluorescence imaging: NIR dye-peptide conjugates
- Theranostics: Combined imaging and therapy
Examples
Ga-68 DOTATATE PET for neuroendocrine tumors, Ga-68 PSMA for prostate cancer, and RGD peptides for tumor angiogenesis imaging.
Clinical Significance
Theranostic pairs (e.g., Ga-68 DOTATATE/Lu-177 DOTATATE) enable same-day diagnosis and therapy.
References
- Source: ENCP Peptide Database
- Category: Peptide Applications
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