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. 2014 Aug 20;29(6):824–836. doi: 10.1177/0885328214548604

Figure 4.

Figure 4.

Examination of chondrogenic differentiation in day-21 pellets generated using 0.6 × 105, 1 × 105, 2 × 105 and 5 × 105 HACs and STRO-1+ SSCs from two osteoarthritic individuals (M85, M52). Histological sections of the day-21 pellets were stained with Alcian blue and Sirius red (A/S). Formation of hyaline cartilage-like tissue was observed consistently in day-21 pellets generated using 0.6 × 105–5 × 105 HACs, while day-21 pellets generated using 0.6 × 105–5 × 105 STRO-1+ SSCs demonstrated lack of hyaline cartilage formation. Scale bars for low and high magnification images represent 200 µm and 50 µm, respectively.