Bioscience, Biotechnology, and Biochemistry
Online ISSN : 1347-6947
Print ISSN : 0916-8451

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Inhibitory Effect of Ellagitannin Metabolites on IgE-Mediated Allergic Responses in RBL-2H3 Cells
Takao NAGANO, Hideyuki ITO, Takeaki OKAMOTO
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JOURNAL FREE ACCESS Advance online publication

Article ID: 120448

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Abstract
The effects of four ellagitannin metabolites (M1–M4) and ellagic acid on immunoglobulin E-mediated allergic responses in rat basophilic leukemia-2H3 cells were investigated. M1–M4 inhibited the antigen-induced degranulation and secretion of interleukin-4 and tumor necrosis factor-α, but ellagic acid only slightly did so under the same experimental conditions. M1 inhibited the activation of the mitogen-activated protein kinases in antigen-stimulated cells.
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