Fig. 8. Changes in GAG composition induced by RGTA in proliferating and differentiating C2.7 cells. HS and CS were measured in cellular extracts of cultures from (A) proliferating and (B) differentiating cells grown in the presence or absence of RGTA added at 0.5 µg/ml. Ratios of HS or CS contents in RGTA-treated cells compared to controls were calculated.