Fig. 4.
Immunofluorescence of differentiated WJ-MSCs. Confocal laser representative images for differentiated WJ-MSCs at days 3 and 7 as indicated. Immunofluorescence assays using the APEX-labeling system for conjugating primary antibodies (BraT-Alexa 488, Sox17-Alexa 594, and FoxA2-Alexa 594). CXCR4 antibodies are PE congregated. Magnification × 400