TABLE 1

Biodistribution of Nanobodies Based on Pinhole SPECT/Micro-CT at 2 Hours After Injection

Organ or tissueBCII10DC1.8PDC2.1P
Lungs0.77 ± 0.5110.81 ± 0.92<0.019.06 ± 2.71<0.01
Liver1.97 ± 0.543.41 ± 0.210.0120.48 ± 2.21<0.01
Spleen1.60 ± 2.215.39 ± 0.230.0438.04 ± 1.87<0.01
Left kidney144.65 ± 23.2631.88 ± 3.194.66 ± 0.95
Right kidney141.74 ± 26.1430.63 ± 5.263.83 ± 0.97
Bladder5.29 ± 2.6510.47 ± 15.690.604.51 ± 5.850.84
Bone marrow0.59 ± 0.213.13 ± 0.16<0.013.34 ± 0.51<0.01
Muscle0.255 ± 0.1791.418 ± 0.353<0.011.598 ± 0.502<0.01
  • Data are counts in tissue (mean ± SD) divided by injected activity and normalized for ROI size. P values represent difference with Nb-BCII10 and are based on 2-tailed unpaired t test.