Sigma-2 Radioligand 1

Sigma-2 Radioligand 1 (compound 1) serves as a selective Sigma-2 ligand, demonstrating favorable biodistribution in mice and robust in vivo activity in rats. The [18F] modified version of Sigma-2 Radioligand 1 enhances the visualization of tumors in micro-PET/CT imaging by providing high tumor uptake and an impressive tumor-to-background ratio. Additionally, experiments confirm that this compound binds with high specificity to U87MG glioma xenografts [1].