Figure 5. Serum stability analysis of 64Cu-labeled M5A conjugates.
64Cu labeled DO3A-VS-M5A was incubated with human serum and analyzed over time by SEC. The major peak at 42 min corresponds to the elution time for IgG. A: SH-DO3A-VS-M5A. B: NH-DO3A-VS-M5A. The sample was also injected into nude mice, blood removed over time, and the serum fraction analyzed by SEC. C: SH-DO3A-VS-M5A. D: NH-DO3A-VS-M5A.