Recellularization capacity of native and antigen removed bovine pericardium in the presence or absence of magnesium. hMSC morphology was unchanged following seeding on either native BP or BP-AR scaffolds (A). No significant difference in recellularization capacity, assessed by percent area of scaffolds positive for eGFP labeled hMSCs, was present between groups (B). (n = 7 per antigen removed group, n = 4 per native group). Scale bar represents 100 μm. eGFP, enhanced green fluorescent protein; hMSC, human mesenchymal stem cell. n.s. signifies no significant differences between groups.