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Updated: Jul 15, 2026

Analysis of β-Amyloid-induced Abnormalities on Fibrin Clot Structure by Spectroscopy and Scanning Electron Microscopy
Published on: November 30, 2018
[Mechanism of beta(2)-microglobulin-related amyloid fibril formation in CKD]
Suguru Yamamoto1, Junichiro James Kazama
1Niigata University Graduate School of Medicine and Dental Scineces, Division of Clinical Nephrology and Rheumatology, Japan.
Abstract:
Dialysis-related amyloidosis is a serious complication in patients on long-term dialysis. Amyloid fibrils, that major component is beta(2)-microglobulin (beta(2)-m) , deposit mainly in osteoarticular joint tissues and cause various complications such as carpal tunnel syndrome, destructive spondyloarthropathy, bone cysts, and various organ dysfunction. The retention of beta(2)-m in chronic kidney disease (CKD) induces the amyloid fibril formation according to a nucleation-dependent polymerization model. Specific molecules such as glycosaminoglycans and proteoglycans that affect the conformation and stability of beta(2)-m and amyloid fibrils are considered to have significant effects on the formation and deposition of amyloid fibrils.
Insights
Dialysis-related amyloidosis occurs in long-term dialysis patients due to beta(2)-microglobulin (beta(2)-m) buildup. Molecules like glycosaminoglycans influence beta(2)-m amyloid fibril formation and deposition.
Area of Science:
- Nephrology
- Biochemistry
- Pathology
Context:
- Long-term dialysis patients face significant complications from amyloidosis.
- Beta(2)-microglobulin (beta(2)-m) accumulation is a hallmark of this condition.
- Amyloid deposits primarily affect osteoarticular tissues, leading to carpal tunnel syndrome, spondyloarthropathy, and bone cysts.
Purpose:
- To elucidate the mechanism of beta(2)-m amyloid fibril formation in chronic kidney disease (CKD).
- To investigate the role of specific molecules in modulating beta(2)-m amyloidogenesis.
Summary:
- Beta(2)-microglobulin (beta(2)-m) retention in CKD patients triggers amyloid fibril formation via a nucleation-dependent polymerization process.
- Amyloid fibrils composed mainly of beta(2)-m deposit in joints, causing significant morbidity.
- Glycosaminoglycans and proteoglycans are identified as key modulators influencing beta(2)-m conformation, amyloid stability, and deposition.
Impact:
- Understanding these mechanisms can inform strategies to prevent or treat dialysis-related amyloidosis.
- Identifying key molecular players offers potential therapeutic targets for managing beta(2)-m amyloidosis.
- This research contributes to the understanding of protein misfolding diseases in the context of renal failure.
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