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Functional factor expressions of umbilical cord‐derived mesenchymal stem cells (UC MSCs) after stimulated by different cytokines. UC MSCs were cultured with or without different cytokines in vitro for 48 hours, then the functional factors including IDO2 (A), COX1 (B), COX2 (C), TGF‐β (D), and IL‐6 (E) were determined by real time polymerase chain reaction. *, p < .05; **, p < .01; ***, p < .001.
