TLR5 and neoplasm: The semi-quantity of tumor radioactivity in 4T1 TLR5+ and 4T1 TLR5− groups was 69329.4 and 99086.8 DLU/mm2, respectively (P < 0.05, Figure 4B), and T/NT ratio was 1.048 and 1.42586 in 4T1 TLR5+ and 4T1 TLR5− groups, respectively (P < 0.05, Figure 4C).