[카테고리:] <span>주름 및 피부탄력</span>

요약 : 
The purpose of this study was to investigate the anti-wrinkle effect of adipose-derived mesenchymal stem cell-conditioned medium (AdMSCs-
CM) in a UVB irradiation-induced hairless mouse wrinkle model. Mice treated with AdMSCs-CM showed improvements in transepidermal water loss (TEWL), water capacity and erythema index of skin. The AdMSCs-CM treated mice showed reduced total wrinkle area, number, length and depth, as measured by gross observation and replica image analysis, and had a thinner epidermis and increased collagen and elastic fiber content, compared with the UV control group, as measured by histopathological examination. The activity of AdMSCs-CM was further confirmed by the reduction in MMP-3 mRNA expression and MMP-2, 9 protein activity in the skin of the AdMSCs CM treated animals. These results suggested that AdMSCs-CM may be effective in the treatment of wrinkles by protecting of the collagen from degradation induced by UV irradiation. Further studies about detailed mechanisms of action of AdMSCs-CM will be needed

요약 : 
The potential anti-wrinkle effects of adipose tissue-derived mesenchymal stem cells (AdMSCs) have recently been reported. In the present study, we demonstrated a protective effect of AdMSCs in a UV irradiationinduced
hairless mouse wrinkle model. Mice treated with AdMSCs showed improvements in skin erythema index, moisture capacity and transepidermal water loss. The AdMSC-treated mice showed reduced wrinkle area, as measured by gross observation and replica image analysis, and had a thinner epidermis and increased collagen and elastic fiber content, compared with the control group, as measured by histopathological examination. These results suggested that AdMSCs may be effective in the treatment of wrinkles. The activity of AdMSCs was further confirmed by the reduction in MMP-3 mRNA expression in the skin of the AdMSC treated animals, which suggests that AdMSCs can protect the collagen from degradation induced by UV irradiation. Further studies will investigate detailed mechanisms of action of AdMSCs, with particular focus on AdMSC-derived secretory factors