ArticleMolecular imaging and biology2016
Evaluation of PET Imaging Performance of the TSPO Radioligand [18F]DPA-714 in Mouse and Rat Models of Cancer and Inflammation.
Article in Molecular imaging and biology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 16 citations in OpenAlex.
- PET Imaging of Diabetes-Induced Alterations in Metabolism and Immune Activation.Molecular imaging and biology · 2025Article
- [Nature · 2022Article
- Assessing organ-level immunoreactivity in a rat model of sepsis using TSPO PET imaging.Frontiers in immunology · 2022Article
- Article
- Pyrazoles as Key Scaffolds for the Development of Fluorine-18-Labeled Radiotracers for Positron Emission Tomography (PET).Molecules (Basel, Switzerland) · 2020Review
- Optimized Translocator Protein Ligand for Optical Molecular Imaging and Screening.Bioconjugate chemistry · 2017Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeMany radioligands have been explored for imaging the 18-kDa translocator protein (TSPO), a diagnostic and therapeutic target for inflammation and cancer. Here, we investigated the TSPO radioligand [(18)F]DPA-714 for positron emission tomography (PET) imaging of cancer and inflammation. PROCEDURES: [(18)F]DPA-714 PET imaging was performed in 8 mouse and rat models of breast and brain cancer and 4 mouse and rat models of muscular and bowel inflammation.
results[(18)F]DPA-714 showed different uptake levels in healthy organs and malignant tissues of mice and rats. Although high and displaceable [(18)F]DPA-714 binding is observed ex vivo, TSPO-positive PET imaging of peripheral lesions of cancer and inflammation in mice did not show significant lesion-to-background signal ratios. Slower [(18)F]DPA-714 metabolism and muscle clearance in mice compared to rats may explain the elevated background signal in peripheral organs in this species.
conclusionAlthough TSPO is an evolutionary conserved protein, inter- and intra-species differences call for further exploration of the pharmacological parameters of TSPO radioligands.
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