通过Saccharomyces cerevisiae的β-glucans强烈诱导受训免疫力
Patricia Vuscan1, Brenda Kischkel1, Aikaterini Hatzioannou2
1Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands.
一种Saccharomyces cerevisiaeβ-葡萄糖混合物通过激活关键受体和信号通路来增强人体单细胞中训练免疫力. 这种免疫训练减少了小鼠模型中的瘤生长,表明了治疗潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 菌类学 菌类学是指菌类学.
- 癌症研究 癌症研究
背景情况:
- 已知Beta-glucans是Candida albicans细胞壁的组成部分,可诱导训练免疫力,即天生的免疫细胞的重编程.
- 目前正在研究Saccharomyces cerevisiaeβ-glucans的免疫调节特性.
研究的目的:
- 研究两种Saccharomyces cerevisiaeβ-glucans高复杂性混合物的生物活性,用于诱导人类初级单细胞中的训练免疫力.
- 探索涉及β-葡萄糖介导训练免疫的潜在受体和信号通路.
- 在临床前癌症模型中评估β-葡萄糖制剂的疗效.
主要方法:
- 用β-葡萄糖混合物治疗人类初级单细胞.
- 训练天生的免疫反应的评估.
- 对受体参与 (Dectin-1/CR3,TLR4,MMR) 和下游信号分子 (Raf-1,Syk,PI3K) 的分析.
- 使用黑色素瘤和膀细胞癌的小鼠模型进行体内研究.
主要成果:
- 这种β-葡萄糖混合物表现出强烈的生物活性,增强了人体单细胞中受训的先天免疫反应.
- 培训过程涉及Dectin-1/CR3,TLR4和MMR受体,以及Raf-1,Syk和PI3K信号通路.
- 多种途径的协同激活导致了强大的二次免疫反应.
- 在小鼠黑色素瘤和膀癌模型中,使用β-葡萄糖制剂的预治疗显著降低了瘤生长.
结论:
- 来自Saccharomyces cerevisiae的复杂β-葡萄糖混合物有效地诱导人体单细胞的训练免疫力.
- 多个免疫受体和信号通路的协同激活对于这种增强反应至关重要.
- 贝塔葡萄糖诱导的训练免疫力显示出减少瘤生长的潜力,这表明了新的治疗策略.
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