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. 2015 Jun 18;6(26):22496–22512. doi: 10.18632/oncotarget.4318

Figure 1. Structures of irinotecan, SN-38, and CL2A-SN-38.

Figure 1

A. Irinotecan schematic indicates the molecule's 7, 10, & 20 positions. B. IMMU-132 ADC shows SN-38 positioning, site of SN-38 cleavage, PEG moiety to enhance solubility, and site coupled to the antibody. C. In vitro serum stability of IMMU-132 in monkey or human serum.