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. Author manuscript; available in PMC: 2019 Mar 25.
Published in final edited form as: J Labelled Comp Radiopharm. 2018 May 14;61(9):672–692. doi: 10.1002/jlcr.3628

Figure 5.

Figure 5.

The importance of residualizing radiolabels. (A) After internalization, radioiodinated antibodies are routed to the lysosomes, where most of the catabolism occurs. This results in the extracellular release of monoiodotyrosine. (B) In contrast, radiometal-based catabolites are trapped in the lysosomes and thus remain in the cell.