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    The receptor for advanced glycation end products (RAGE) is a central mediator of the interaction of AGE-beta2microglobulin with human mononuclear phagocytes via an oxidant-sensitive pathway. Implications for the pathogenesis of dialysis-related amyloidosis.

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    YanShirley_JCI_98(5)1088.pdf (197.9Kb)
    Issue Date
    1996-09-01
    Author
    Miyata, Toshio
    Hori, Osamu
    Zhang, JingHua
    Yan, Shirley ShiDu
    Ferran, Luis
    Iida, Yoshiyasu
    Schmidt, Ann Marie
    Publisher
    American Society for Clinical Investigation
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
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    Abstract
    An important component of amyloid fibrils in dialysis-related amyloidosis is a form of beta2microglobulin modified with advanced glycation end products (AGEs) of the Maillard reaction, known as AGE-beta2M. We demonstrate here that the interaction of AGE-beta2M with mononuclear phagocytes (MPs), cells important in the pathogenesis of the inflammatory arthropathy of dialysis-related amyloidosis, is mediated by the receptor for AGEs, or RAGE. 125I-AGE-beta2M bound to immobilized RAGE or to MPs in a specific, dose-dependent manner (Kd approximately 53.5 and approximately 81.6 nM, respectively), a process inhibited in the presence of RAGE blockade. AGE-beta2M-mediated monocyte chemotaxis was prevented by excess sRAGE or anti-RAGE IgG. Induction of tumor necrosis factor-alpha (TNF) expression by MPs exposed to AGE-beta2M resulted from engagement of RAGE, as appearances of TNF transcripts and TNF antigen release into culture supernatants were prevented by addition of sRAGE, a process mediated, at least in part, by oxidant stress. AGE-beta2M reduced cytochrome c and the elaboration of TNF by MPs was inhibited by N-acetylcysteine. Consistent with these data, immunohistochemical studies of AGE-laden amyloid deposits of a long-term hemodialysis patient revealed positive staining for RAGE in the MPs infiltrating these lesions. These data indicate that RAGE is a central binding site for AGEs formed in vivo and suggest that AGE-beta2M-MP-RAGE interaction likely contributes to the initiation of an inflammatory response in amyloid deposits of long-term hemodialysis patients, a process which may ultimately lead to bone and joint destruction.
    Description
    This is the published version. Copyright 1996 American Society for Clinical Investigation.
    URI
    http://hdl.handle.net/1808/17870
    DOI
    https://doi.org/10.1172/JCI118889
    Collections
    • Pharmacy Scholarly Works [286]
    Citation
    Miyata, T., O. Hori, J. Zhang, S. D. Yan, L. Ferran, Y. Iida, and A. M. Schmidt. "The Receptor for Advanced Glycation End Products (RAGE) Is a Central Mediator of the Interaction of AGE-beta2microglobulin with Human Mononuclear Phagocytes via an Oxidant-sensitive Pathway. Implications for the Pathogenesis of Dialysis-related Amyloidosis." Journal of Clinical Investigation J. Clin. Invest. 98.5 (1996): 1088-094. http://dx.doi.org/10.1172/JCI118889.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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