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. 2018 Jul 24;9:1642. doi: 10.3389/fimmu.2018.01642

Figure 7.

Figure 7

Head to head comparison between trans-well and standard well proliferation assay stimulated with phytohemagglutinin (PHA). Allogenic mesenchymal stem cell (MSC) deriving from the same donor were added in different ratios to carboxyfluorescein succinimidyl ester stained responder cells, resulting in a dose-dependent suppression of CD3+, CD4+ cells. Absence of cell contact (A) did not result in a loss of suppression performance compared with standard co-culture (B). When adipose-derived mesenchymal stem cells (ASCs) and bone marrow-derived mesenchymal stem cells (BMSCs) were mixed and added to co-cultures (C) at a constant ratio of 4:1 between responder peripheral blood mononuclear cells and the MSCs added, a synergistic effect of s.c.ASC and BMSC is demonstrated resulting in a significant suppression (p < 0.01), independent on the composition of the mixed MSC (more ASC vs. more BMSC). Results for mixed MSCs showed no significant difference if compared with single-cell types.