Fig. 2From: Immune response to allogeneic equine mesenchymal stromal cellsAnalysis of MHC II expression on MSCs co-cultured with PBMCs. MHC II expression on MSCs is shown prior to co-culture (a), after 3 days in co-culture (b), and at 5 days of co-culture (c). Increased levels of MHC II expression were seen on MSCs when in co-culture and more specifically when MSCs and lymphocytes were co-cultured at low ratiosBack to article page