SLC5A5 and neoplasm: Mice injected with saline only with (41 °C) (NaCl + 41 °C + NaCl) or without hyperthermia (37 °C) (NaCl + 37 °C + NaCl), and mice receiving saline instead of 131I with (41 °C) (HSP70B-NIS-MSCs + 41 °C + NaCl) and without hyperthermia (37 °C) (HSP70B-NIS-MSCs + 37 °C + NaCl), served as controls and exhibited an uninterrupted and exponential tumor growth (Figure 5B and Supplementary Figure 1).