On-demand cleavable linkers for radioconjugates for cancer imaging and therapy

摘要

The present invention provides compositions comprising a biological agent, a targeting moiety, and a peptide linker attaching the biological agent to the targeting moiety, wherein the peptide linker is selectively cleaved by a protease. Efficient methods are provided for administering the compositions of the present invention for treating cancer or imaging a tumor, organ, or tissue in a subject. Kits are also provided for administering the compositions of the present invention for radiotherapy or radioimaging.