fractionated tissue proteoglycans were composed predominantly of chondroitin sulfate-dermatan sulfate ( 83-90 % ) with lower proportions of heparan sulfate ( 5-11 % ) and hyaluronic acid ( 3-6 % ) whilst cell-secreted proteoglycans showed a similar glycosaminoglycan composition but with a higher proportion of hyaluronic acid ( 11-13 % ) .
C0007634
cell
C1327616
secreted