Similarly, the 89Zr-DFO-CD8a tumor-to-heart ratios are illustrated in Figure 4E and were 10.15 ± 1.09 (Renca), 9.25 ± 0.98 (CT26), 8.25 ± 0.6 (MC38), 8.11 ± 0.41 (4T1), 7.26 ± 0.4 (Sa1N), 5.15 ± 0.38 (P815) and 4.6 ± 0.67 (B16F10). Here, CD8A is linked to neoplasm.