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  • Title: Characterization and macromolecular association of proteoglycans produced by pig arterial smooth muscle cells in culture.
    Author: Deudon E, Brahimi-Horn MC, Breton M, Berrou E, Picard J.
    Journal: Int J Biochem; 1988; 20(4):397-407. PubMed ID: 3366298.
    Abstract:
    1. Medium and cell-layer proteoglycans from pig aorta smooth muscle cells in culture were compared. In both compartments, the main proteoglycans contained chondroitin sulfate-dermatan sulfate chains of 40 kDalton. 2. However, cell-layer proteoglycans differed from those of the medium by the presence of: (a) some small-size proteoglycans; (b) a greater amount of heparan sulfate; (c) chondroitin sulfate-dermatan sulfate enriched in iduronate and in 4 sulfate- (instead of 6 sulfate-) residues. 3. During dissociation-reassociation assays of arterial proteoglycans with exogenous hyaluronate or "aggregate" proteoglycans, the in vitro formation of complexes appeared to involve inter-associations between proteoglycans molecules, in addition to aggregation with hyaluronate.
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