CCL4 and rheumatoid arthritis: The presence of BM-MSCs in the cell culture resulted in an inhibitory effect over TNFα and MIP-1β protein production, transversal to all monocyte subsets (p < 0.05) and mDCs (p < 0.05), from both RA patients and healthy group (HG), as illustrated in Figure 3, Figure 4 and Figure 5.