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Quantification of hWJ-MSC-derived cytokine expression. The expression of mRNAs for Treg-associated cytokines, such as TGF-β, IL-10, IL-4, and IL-35 (which are composed of EBI3 and p35), in hWJ-MSC and fibroblasts, was quantified using qPCR. The levels of expression of cytokines were was normalized to that of GAPDH. The difference between the mean ± SD values of the hWJ-MSC and fibroblast groups was significant (** p < 0.005, Student’s t-test).
