Antigen   Specification P1 expansion P2 expansion (3)
P2Q P2F P3Q-1 P3Q-2 P3Q-3 P3F
CD105 >95 98 98.5 98.6 98.4 98.4 99.5
CD90 >95 96.3 99.6 99.7 99.7 98.5 99.8
CD73 >95 99.6 99.5 99.6 99.7 99.6 99.8
CD34 <2 <1/10000 <1/10000 <1/10000 <1/10000 <1/10000 <1/10000
CD45 <2 <1/10000 <1/10000 <1/10000 <1/10000 <1/10000 <1/10000
CD3 <1 <1/10000 <1/10000 <1/10000 <1/10000 <1/10000 <1/10000
CD14 <2 <1/10000 <1/10000 <1/10000 <1/10000 <1/10000 <1/10000
HLA-DR / <1 <1 <1 <1 <1 <1
Table 2: Expression (%) of cell-surface antigens of Q-MSC and F-MSC. Results are shown for P2 and P3 MSC expanded in flasks or the Quantum® device (Figure 1).