Figure 3: iNP-like cells contribute to nephrons in mouse kidney in vivo.
(A) Schematic of the neonatal injection assay used to determine iNP differentiation capacity. (B) Immunofluorescence of sections through mouse kidneys at 3 and 7 days post-injection with iNP-like cells or control HK2-mCherry cells (stained with HuMt, red). Arrows depict examples of integrated HuMt+ cells or HuMt+ tubules. Scale bars represent 30 μm. (C) Immunofluorescence analysis and detection of fluorescence microsphere auto-fluorescence in neonatal kidneys injected with HK2-mCherry control cells and harvested 7 days post-injection. Arrows depict examples of fluorescent microspheres (green). Scale bars represent 30 μm. Dashed lines in A and C indicate the outer edge of the kidney cortex.