Based on these data, Wong T. et al. (2008) conducted the limited clinical study and showed that the single administration of alloDFs resulted in the increase in COL7A1 expression and C7 production observed in three out of five RDEB patients for 3 to 9 months, while the stimulation of wound healing was also noted [60] (Table 1). Here, COL7A1 is linked to recessive dystrophic epidermolysis bullosa.