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Tea polyphenol epigallocatechin-3-gallate associates with plasma membrane lipid rafts: Lipid rafts mediate anti-allergic action of the catechin

机译:茶多酚表没食子儿茶素-3-没食子酸酯与质膜脂质筏相关:脂质筏介导儿茶素的抗过敏作用

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摘要

High-affinity IgE receptor FcεRI is key molecule in the IgE-mediated allergic reactions. Epigallocatechin-3-gallate (EGCG) has a suppressive effect of the expression of the FcεRI. We show here that EGCG highly associates with plasma membrane microdomains, lipid rafts. The disruption of these lipid rafts caused a reduction of the amount of raft-associated EGCG and the FcεRI -suppressive effect of EGCG. These results suggest that the interaction between EGCG and the lipid rafts is important for EGCG's ability to downregulate FcεRI expression.
机译:高亲和力的IgE受体FcεRI是IgE介导的过敏反应中的关键分子。表没食子儿茶素-3-没食子酸酯(EGCG)具有抑制FcεRI表达的作用。我们在这里显示EGCG与质膜微区,脂质筏高度相关。这些脂质筏的破坏导致筏相关的EGCG的量减少和EGCG的FcεRI抑制作用。这些结果表明,EGCG和脂质筏之间的相互作用对于EGCG下调FcεRI表达的能力很重要。

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