CD40LG and neoplasm: In SK-Ov3 peritoneal carcinomatosis bearing nude mice, these authors showed a marked difference in tumor uptake between i.v. and i.p. injections of AC6C3-2B12 human IgM: 39% vs. 0.9%ID/g tumor for i.p. vs. i.v. injection, respectively, at 24 h and 28% vs. 1.4%ID/g at 48 h [46].