Actinium chelation and crystallization in a macromolecular scaffold.

ABSTRACT: Targeted alpha therapy (TAT) pairs the specificity of antigen targeting with the lethality of alpha particles to eradicate cancerous cells. Actinium-225 [²²⁵Ac; t_1/2 = 9.920(3) days] is an alpha-emitting radioisotope driving the next generation of TAT radiopharmaceuticals. Despite promising clinical results, a fundamental understanding of Ac coordination chemistry lags behind the rest of the Periodic Table due to its limited availability, lack of stable isotopes, and inadequate systems poised to probe the chemical behavior of this radionuclide. In this work, we demonstrate a platform that combines an 8-coordinate synthetic ligand and a mammalian protein to characterize the solution and solid-state behavior of the longest-lived Ac isotope, ²²⁷Ac [t_1/2</

SUBMITTER: Wacker JN 

PROVIDER: S-EPMC11251196 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature