Figure 1.

Morphological changes in rAT-MSCs during the culture. (A): Cells started to adhere to culture flasks 24 h after seeding; (B): the cells began to cluster into small colonies 72 h in culture; (C): the cells reached confluency approximately 50–60% on the 5th day; (D): cell culture consisted of a homogenous monolayer of fibroblast-like cells on the 7th day after isolation (scale bar = 100 µm).