although [ 35s ] heparin proteoglycans have been isolated from human lung mast cells of 40-70 % purity and from a skin biopsy specimen of a patient with urticaria pigmentosa , no highly sulfated chondroitin sulfate proteoglycan has been isolated from any enriched or highly purified population of human mast cells .
C0042111
urticaria pigmentosa
C0024880
mast cells