Serum IL-6, IL-17, IL-10 and MCP-1 in B6/lpr mice after transplantation of MSCs. (A,B,C,D) Serum levels of IL-6, IL-17, IL-10 and MCP-1 in each group; (E) comparison of cytokines between B6 and B6.lpr groups. B6 (n=4), PBS (n=9), UC-MSCs (n=7), DPSCs (n=9), PDLSCs (n=8). Statistical comparisons were performed using Mann-Whitney U test. *P<0.05, **P<0.01. PBS, phosphate buffered saline; UC-MSCs, umbilical cord mesenchymal stem cells; DPSCs, dental pulp stem cells; PDLSCs, periodontal ligament stem cells.