Metal complexes of thiosemicarbazones for imaging and therapy

This review gives an account of the coordination chemistry of thiosemicarbazone ligands with three (tridentate) or four (tetradentate) potential donor atoms. The syntheses and structures of the ligands complexes are described according to the donor atom combinations and metals involved. The review also covers the biological activities of the ligands and complexes in the context of their applications as therapeutic or diagnostic PET or SPECT imaging agents.

Graphical abstractThiosemicarbazones are potent cytotoxins and with appropriate radiometals can be used for diagnostic medical imaging or therapy.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A review of the chemistry and biology of thiosemicarbazones. ► Their coordination chemistry with biologically relevant metals. ► Their applications in biomedicine for PET and SPECT imaging and therapy. ► Their mechanisms of actions in vitro and in vivo.