Open AccessDOI
Corpora Amylacea in Aging and Alzheimer’s Brain: Immunolocalization of Chondroitin Sulfate and Heparan Sulfate Proteoglycans
Alan D. Snow,Henderson Mar,David Nochlin,Murray A. Raskind,Thomas N. Wight +4 more
- pp 561-566
TLDR
Use of a monoclonal antibody to the glycosaminoglycan moiety of a keratan sulfate proteoglycan demonstrated (at the light microscopic level) that CA contains antigenic sites for keratan oxide proteoglycans.Abstract:
Corpora amylacea (CA) are spherical bodies, varying in diameter (10–100 microns), which accumulate in the brain during normal aging and in a number of diseases. At the ultrastructural level CA contain masses of randomly oriented short linear fibrillar structures (14). In many instances the complete CA granule is surrounded by glial filaments. The presence of CA in the brain has been recognized for over a century, however its definite composition and source of origin is relatively unknown. CA tend to accumulate in subependymal, subpial and perivascular regions and are very prominent in the olfactory tract during normal senescence. Early investigations into the nature of CA suggested the presence of glucose polymers, maltose (15) and other types of carbohydrates (1), with small amounts of protein (15). A more recent study using various lectins to stain CA suggested the presence of D-glucose, D-mannose, D-galactose, alpha-L-fucose and N-acetylgalactosamine (12). In addition use of a monoclonal antibody to the glycosaminoglycan moiety of a keratan sulfate proteoglycan demonstrated (at the light microscopic level) that CA contains antigenic sites for keratan sulfate proteoglycans (12).read more
Citations
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Journal ArticleDOI
Proteoglycans in the pathogenesis of Alzheimer's disease and other amyloidoses.
Alan D. Snow,Thomas N. Wight +1 more
TL;DR: It is postulated that proteoglycans localized to a number of different amyloids play a common role in the pathogenesis of amyloidosis and some of these hypothesized roles include inducingAmyloidogenic precursor proteins to form amyloidal fibrils containing a predominant beta-pleated sheet structure.
References
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Journal ArticleDOI
Isolation of a heparan sulfate-containing proteoglycan from basement membrane
John R. Hassell,Pamela Gehron Robey,Hans-Jurgen Barrach,Joseph Wilczek,Stephen I. Rennard,George R. Martin +5 more
TL;DR: The isolated heparan sulfate proteoglycan from the Engelbreth-Holm-Swarm sarcoma is a normal constituent of basement membranes that presumably plays an important role in the organization of basement membrane components and that also may determine the permeability of cellar membranes to acidic molecules.
Journal Article
Sulfated glycosaminoglycans: a common constituent of all amyloids?
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Beitrag zur Histopathologie der myoklonischen Epilepsie
Gonzalo R. Lafora,Bernard Glueck +1 more
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TL;DR: The most complete account of Weigert's copper hematoxylin stain for the central nervous system is given in this article, in which each method is so clearly described that there cannot be the least difficulty in employing it.
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