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Journal of Cell Science, Vol 63, Issue 1 155-171, Copyright © 1983 by Company of Biologists
JOURNAL ARTICLES |
JT Gallagher, E Spooncer and TM Dexter
Haemopoietically active mouse bone marrow cultures, incubated for 48 h with [3H]glucosamine and Na2(35)SO4, synthesized radiolabelled hyaluronic acid, heparan sulphate and chondroitin sulphate. Heparan sulphate was enriched in a trypsin extract of the adherent cells whereas hyaluronic acid and chondroitin sulphate were distributed mainly to the culture medium. Analysis of nitrous acid scission products of heparan sulphate by gel chromatography demonstrated the close association of N- and O-sulphate groups along the polysaccharide chain. Chondroitinase AC degradation established the copolymeric nature of chondroitin sulphate in which about 38% of the hexuronic acid residues were in the form of GlcUA. Studies on non-haemopoietic cultures, derived from W/Wv mice or from normal marrow cells maintained in foetal calf serum instead of horse serum, indicated that adherent stromal cells were the major source of glycosaminoglycans.
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