Figure 6.

Tumorigenicity detection of IMSCs. A: Inoculated rat yolk sac tumor cell lines (L2RYC) performed peanut-sized bumps in injection sites (the left front and rear notum of nude mice), but no bump generated in IMSCs injection sites (the right front and rear notum of nude mice). B: No bump generated in both primary MSCs injection sites (the left front and rear notum of nude mice) and IMSCs injection sites (the right front and rear notum of nude mice). C: Haematoxylin-eosin (HE) staining for tumor nodules derived from L2RYC injection sites (Scale bar = 100 μm).