Culture medium containing MSC (head arrow, A) was added on CM transwell (arrow, A). After 72 h, MSC reached 100% confluence and exhibited fibroblast-like typical morphology on CM (B). MSC/CM were removed from the insert (arrow, C). CM (arrow) were cut and implanted on the bed of cutaneous wounds (D). The wound was covered with a band-aid and Tegaderm (E).