characterization of the proteoglycans synthesized in the absence of tcm revealed that colon fibroblasts synthesized at least three species of proteoglycans including a heparan sulfate proteoglycan which was associated primarily with the cell layer and two populations of proteoglycans which were predominantly released into the medium and contained chondroitin-dermatan sulfate side chains .
C0062503
heparan sulfate proteoglycan
C0033692
proteoglycans