Abstract

Psoriasis (Ps) is one of the most common chronic inflammatory skin disorders with its pathogenesis correlated with dysregulated innate and adaptive system. Even though biological agents have advanced the treatment of psoriasis, however, there are huge limitations, like high adverse reactions and relapse rate. Therefore, it is of great interest in searching clinical resolutions with better safety and efficacy. In the current study, we utilized the adipose-derived mesenchymal stem cell (AD-MSCs) to treat moderate/severe cases of psoriasis in a single-arm clinical study. This AD-MSC treatment has proven to be clinically safe and effective. Interestingly, a trend of adaptome improvement, including increased diversity, elevated uCDR3s and decreased large clone after AD-MSC treatment in a short (2 weeks) and long (12 weeks) terms. In conclusion, allogenic AD-MSC treatment has shown a good safety and efficacy in treating Ps and can effectively improve the compromised adaptive immune system of Ps patients.

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