Morphological change of MSCs with or without the exposure to CART. Particular changes in morphology happened to MSCs with the exposure to CART. Similar to the situation of the bFGF/EGF-treated group, several MSCs incubated with CART for 3 days became shorter and nucleus-convergent. They subsequently evolved to display round cell bodies with long axons in 6 days. In the control group, mesenchmal stem cells nearly kept stable in the appearance within the 6 days of, observation (scale bar = 50 uM).