Table 3.

MSC antigen expression after 3 and 5 weeks of expansion culture in synthetic media.

Media	CD105		% Change	CD73		% Change	CD90		% Change
	Week 3	Week 5		Week 3	Week 5		Week 3	Week 5
FBS	100	76	−24	100	97	−3	100	93	−7
StemMACS	100	16	−84	65	100	+54	99	92	−7
HPL	83	99	+19	100	100	+0.2	100	100	0
PLT Max	77	98	+27	91	100	0	100	100	0

MSCs were cultured as described in Table 1 and Table 2. At the end of weeks 3 and 5 of culture, MSCs were analyzed for phenotype by flow cytometry, as described. The data are presented as percent positive cells for each antigen and change in expression from one time point to another.