Research Article

Mesenchymal Stem Cells Enhance Therapeutic Effect and Prevent Adverse Gastrointestinal Reaction of Methotrexate Treatment in Collagen-Induced Arthritis

Figure 4

Combination of UCs and MTX promoted peritoneal macrophage polarization and enhanced the population of spleen Tregs in CIA mice. (a) Flow cytometry analysis of the proportion of M2 polarization in peritoneal macrophages marked by CD206. (b) The quantifications of CD206 macrophages after treatment. (c, d) The apoptosis of CD4+ and CD8+ spleen T cells was analyzed by flow cytometry. (e) The population of spleen Tregs marked by CD4+, CD25+, and Foxp3 was analyzed. per group. Data are shown as . ; ; ; ns: not significant ().
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