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.
Bioscience, Biotechnology, and Biochemistry
Volume 76, 2012 - Issue 12
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