In vivo imaging and ex vivo biodistribution analysis of early BM-DC homing. (A) In vivo imaging of Luc⁺ DC homing in NOD mice 4 and 24 hours after intravenous or intraperitoneal injection. (B,C) Relative biodistribution of Luc⁺ DCs in NOD mice at 6, 11, and 26 hours after intravenous (B) or intraperitoneal (C) injection. See Table 1 for tissue legend (caudate lobe of the liver was used). Data show the mean from 3 mice ± SE.