Re and (99m)Tc complexes of BodP3--multi-modality imaging probes

Area of Science:

• Radiochemistry
• Chemical Biology
• Molecular Imaging

Background:

• Development of novel imaging agents is crucial for early cancer detection.
• Fluorescent and SPECT probes offer complementary detection modalities.
• Tridentate phosphine ligands can form stable metal complexes for biomedical applications.

Purpose of the Study:

• To synthesize and characterize rhenium complexes with a fluorescent tridentate phosphine, BodP3.
• To evaluate the potential of these complexes for cancer cell imaging.
• To explore the preparation and utility of technetium analogues as dual-modality probes.

Main Methods:

• Synthesis of the fluorescent tridentate phosphine ligand BodP3.
• Complexation of BodP3 with rhenium and technetium isotopes.
• Fluorescence microscopy for cellular imaging.
• SPECT imaging studies (in vitro/in vivo).

Main Results:

• BodP3 successfully formed stable rhenium complexes.
• These rhenium complexes demonstrated effective fluorescence imaging of cancer cells.
• Technetium analogues were readily prepared and exhibited dual SPECT/fluorescent properties.

Conclusions:

• BodP3-based rhenium complexes are promising fluorescent agents for cancer cell imaging.
• Technetium analogues of BodP3 complexes hold potential as versatile dual-modality biological probes.
• This work expands the toolkit for molecular imaging in oncology.