ArticleBiochemistry and biophysics reports2025
Epigallocatechin-3-Gallate: A potential amyloid Fibril Disaggregator of Serum amyloid A1.
Article in Biochemistry and biophysics reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Serum amyloid A1 (SAA1) is a 122-amino acid protein that, after cleavage, matures into a 104-amino acid form. Its N-terminus is responsible for binding high-density lipoprotein (HDL), while the C-terminus maintains its structural integrity. As an acute-phase protein, SAA1 is produced by the liver in response to acute inflammation. SAA1 is also a precursor to amyloid A (AA), and its accumulation can lead to AA amyloidosis-a condition secondary to chronic inflammation that causes tissue damage and organ dysfunction. Our study explores methods to disaggregate SAA1 fibrils isolated from the cat spleen, chicken liver, and cow liver. Specifically, we investigate the use of epigallocatechin-3-gallate (EGCG), a polyphenolic flavonoid extracted from green tea known for its anti-inflammatory and antioxidant properties, to disaggregate these fibrils. Dynamic light scattering (DLS) and transmission electron microscopy (TEM) were used to analyze these fibrils after treatment with 1 % DMSO and 400 μM of EGCG in 10 mM PBS (pH 7.4). The results demonstrated that EGCG effectively reduced fibril size, as confirmed by DLS characterization, with the disappearance or diminished prominence of the 10
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