Antigen Specification Donor 1 Donor 2 Fresh Thawed Fresh Thawed P3F-1 P3FT-1A P3Q-1A P3FT-1B P3Q-1B P3F-2 P3Q-2 CD105 >95 99.7 99.5 97.2 99.5 98 99.4 99.1 CD90 >95 99.4 99.9 99.8 99.8 99.9 99.8 99.6 CD73 >95 99.8 99.7 99.8 99.5 99.9 99.5 99.0 CD34 <2 <1/10000 <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 <1/10000 CD3 <1 <1/10000 <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 <1/10000 HLA-DR / <1 <1 <1 <1 <1 <1 <1

Table 6: Expression (%) of cell-surface antigens of Q-MSC and F-MSC. Results are shown for MSC processed freshly in traditional flasks (F) and for MSC processed after a freezing/thawing step at P2 and replated in the Quantum® device (P3Q) or in flasks (P3F) (Figure 3).