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首页> 外文期刊>Anticancer Research: International Journal of Cancer Research and Treatment >Degalactosylated/Desialylated Bovine Colostrum Induces Macrophage Phagocytic Activity Independently of Inflammatory Cytokine Production
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Degalactosylated/Desialylated Bovine Colostrum Induces Macrophage Phagocytic Activity Independently of Inflammatory Cytokine Production

机译:半乳糖基化/去唾液酸化的牛初乳独立于炎性细胞因子的产生诱导巨噬细胞吞噬活性。

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Background/Aim: Colostrum contains antibodies, such as immunoglobulin G (IgG), immunoglobulin A (IgA) and immunoglobulin M (IgM), and, therefore, has potent immunomodulating activity. In particular, IgA has an O-linked sugar chain similar to that in the group-specific component (Gc) protein, a precursor of the Gc protein-derived macrophage-activating factor (GcMAF). In the present study, we investigated the macrophage-activating effects of degalactosylated/desialylated bovine colostrum. Results: We detected the positive band in degalactosylated/desialylated bovine colostrum by western blotting using Helix pomatia agglutinin lectin. We also found that degalactosylated/desialylated bovine colostrum could significantly enhance the phagocytic activity of mouse peritoneal macrophages in vitro and of intestinal macrophages in vivo. Besides, degalactosylated/desialylated bovine colostrum did not mediate the production of inflammatory cytokines such as tumor necrosis factor-alpha (TNF-alpha) and interleukin-1 beta (IL-1 beta). Conclusion: Similar to the use of GcMAF, degalactosylated/desialylated bovine colostrum can be used as a potential macrophage activator for various immunotherapies.
机译:背景/目的:初乳含有抗体,例如免疫球蛋白G(IgG),免疫球蛋白A(IgA)和免疫球蛋白M(IgM),因此具有有效的免疫调节活性。特别地,IgA具有与基团特异性组分(Gc)蛋白(Gc蛋白衍生的巨噬细胞活化因子(GcMAF)的前体)中的O-连接的糖链相似的链。在本研究中,我们调查了半乳糖基化/去唾液酸化牛初乳的巨噬细胞激活作用。结果:我们使用螺旋果胶凝集素凝集素通过蛋白质印迹法检测到半乳糖基化/去唾液酸化牛初乳中的阳性条带。我们还发现,半乳糖基化/去唾液酸化的牛初乳可以显着增强体外小鼠腹膜巨噬细胞和体内肠道巨噬细胞的吞噬活性。此外,半乳糖基化/去唾液酸化的牛初乳不介导炎性细胞因子的产生,例如肿瘤坏死因子-α(TNF-α)和白介素-1β(IL-1β)。结论:与GcMAF的使用相似,半乳糖基化/去唾液酸化的牛初乳可以用作各种免疫疗法的潜在巨噬细胞激活剂。

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