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Updated: Sep 8, 2025

Tumor Hypoxia Assessment: In Vivo 3D Oxygen Imaging Through Electron Paramagnetic Resonance
Published on: February 14, 2025
Hypoxia Inducible Factor-1α Specific Probe for Tumor Hypoxia Positron Emission Tomography Imaging
Qian Chen1,2, Teli Liu2, Xiaoyi Guo2
1GuiZhou University Medical College, Guiyang, GuiZhou Province, China.
Abstract:
A peptide-based, hypoxia-inducible factor-1 α (HIF-1α) specific PET tracer for tumor hypoxia imaging is reported. It was prepared with a rapid Al18F labeling method with high stability. Al18F-CLLFVY specifically binds to HIF-1α with high affinity and shows higher uptake in cells under hypoxia. Al18F-CLLFVY demonstrated comparable tumor uptake to 18F-FMISO and better contrast.
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