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Chondrogenic differentiation, Masson Trichrome staining. Chondrogenic differentiation (P3) demonstrated in three dimensional pellet cultures. Collagen synthesis in the extracellular matrix (green) was confirmed with Masson Trichrome staining (a-e). Only moderate collagen formation was present in non induced cell cultures, shown for eP-MSCap (f). Scale bar = 100 μm.
