The Exposure to Osteoarthritic Synovial Fluid Enhances the Immunomodulatory Profile of Adipose Mesenchymal Stem Cell Secretome

<div>The conditioned medium of SF-exposed AMSCs increased the expansion of T reg. CD4+ T cells, isolated from PBMCs by negative selection, were stimulated with anti-CD3, anti-CD28, and IL-2 in the presence of conditioned medium of untreated cells (CM), conditioned medium of AMSCs exposed to synovial fluid (CM+SF), and synovial fluid only (SF). The percentage of regulatory T cells (CD4+/CD25+/FoxP3+) was determined by fluorescence-activated flow cytometry (FACS) on day 4. Representative plots for CD25 and FoxP3 staining are shown (a), and histograms represent the percentage of regulatory T cells expressed as fold increase over untreated cells (CTRL). 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Stem Cells International

fig5

Figure 5

Figure 5: The Exposure to Osteoarthritic Synovial Fluid Enhances the Immunomodulatory Profile of Adipose Mesenchymal Stem Cell Secretome 