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首页> 外文期刊>Immunopharmacology and immunotoxicology >Immunomodulatory effects of EGCG fraction of green tea extract in innate and adaptive immunity via T regulatory cells in murine model
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Immunomodulatory effects of EGCG fraction of green tea extract in innate and adaptive immunity via T regulatory cells in murine model

机译:小鼠模型中T调节细胞对绿茶提取物EGCG组分固有免疫和适应性免疫的免疫调节作用

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摘要

Green tea is a widely consumed beverage known for its beneficial anti-inflammatory, anti-oxidative, anti-mutagenic, anti-carcinogenic, and cardioprotective properties. Here, we administered epigallocatechin gallate fraction of green tea extract (EGTE) to mice for 6 weeks and examined the effects on the innate and adaptive immune responses by measuring phagocytic and natural killer (NK) cell activity, as well as antigen-specific proliferation, cytolysis, cytokine secretion, and antibody production. Our data show that EGTE administration increased NK cell cytolysis and peritoneal cell phagocytosis, as well as splenocyte proliferation and secretion of IL-2 and IFN-gamma. Of note, EGTE treatment decreased the production antigen-specific IgE via increased the proportion of CD4(+) CD25(+) regulatory T lymphocytes in the spleen, suggesting that EGTE may play a role in regulating the allergic response.
机译:绿茶是一种被广泛消费的饮料,以其有益的抗炎,抗氧化,抗诱变,抗致癌和心脏保护特性而闻名。在这里,我们对小鼠施用了绿茶提取物的表没食子儿茶素没食子酸酯级分(EGTE)6周,并通过测量吞噬和自然杀伤(NK)细胞活性以及抗原特异性增殖来检查对先天和适应性免疫反应的影响,细胞溶解,细胞因子分泌和抗体产生。我们的数据表明,EGTE给药可增加NK细胞的细胞溶解和腹膜细胞吞噬作用,以及脾细胞增殖和IL-2和IFN-γ的分泌。值得注意的是,EGTE治疗可通过增加脾脏中CD4(+)CD25(+)调节性T淋巴细胞的比例来降低生产抗原特异性IgE,这表明EGTE可能在调节过敏反应中起作用。

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