Fig. 4From: Multi-differentiation potential is necessary for optimal tenogenesis of tendon stem cellsChondrogenesis assay results. a Gene expression of Sox9 and aggrecan relative to uninduced monolayer cells on day 21. Lines and asterisks indicate groups with significant differences. b Representative sections from chondrogenesis pellets from each group showing Alcian Blue staining of the ECM. Scale bar = 500 μmBack to article page