Fig. 8

Histopathological examination of tissues and Raji cell-derived tumors in NOD SCID mice administered hUC-MSCs (HE staining, 10 ×). A Raji cells metastasized through small veins in the lungs of the animals in the model group. B There were more extramedullary hematopoietic cell colonies in the spleens of the animals in the low-dose group. C The axillary tissue of animals in the medium-dose group exhibited central necrosis in the inoculated tumor cell mass