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  • Title: Renal localization of heparan sulfate proteoglycan by immunohistochemistry.
    Author: Klein DJ, Oegema TR, Eisenstein R, Furcht L, Michael AF, Brown DM.
    Journal: Am J Pathol; 1983 Jun; 111(3):323-30. PubMed ID: 6222657.
    Abstract:
    Glomerular localization of heparan sulfate proteoglycan (HS-proteoglycan) has been studied immunohistochemically with a highly purified antiserum to bovine aorta HS-proteoglycan core protein. The specificity of the antiserum was enhanced by consecutive fibronectin and chondroitin sulfate-dermatan sulfate proteoglycan (CS-DS proteoglycan) affinity chromatography. The affinity-purified HS-proteoglycan antibody lacked cross-reactivity by enzyme-linked immunosorbent assays (ELISA) with CS-DS proteoglycan, fibronectin, laminin, and Type IV collagen. Reactivity of the antiserum with HS-proteoglycan antigen by ELISA was inhibited by HS core protein derived from CsCl density gradient centrifugation after heparinase treatment of the HS-proteoglycan. Immunofluorescent reactivity of the HS-proteoglycan antiserum was observed with bovine glomerular basement membrane, renal interstitium, Bowman's capsule, renal arterioles, and bovine aorta. No staining was seen with rat, mouse, or human glomeruli.
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