Frozen sections of kidney were analyzed after the mice were killed (ie, when the mice reached early removal criteria [tumors of 4000 m³]), with the exception of 2 mice in the L3D10-treated group, in whom tumors never met the criteria for early removal.

The incidence of IgG deposition in mice treated with K4G4 (P = .029) and L1B11 (P = .029), but not L3D10 (P = .47), is significantly higher than in the control group.