来自Saccharomyces cerevisiae的β-葡萄糖作为抗粘和免疫调节多糖对抗Campylobacterjejuniuniuni的作用
1Institute of Pharmaceutical Biology and Phytochemistry - Graduate School of Natural Products GSNP, University of Münster, Münster, Germany.
Microbial pathogenesis
|June 29, 2025
概括
来自Saccharomyces cerevisiae的酵母衍生的β-葡萄糖 (BGL) 显著降低了Campylobacter jejuni对人类肠道细胞的附着性. 这种化合物还增强了免疫细胞消除C. jejuni的作用,提供了对抗食物传播疾病的潜在策略.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 食品科学 食品科学 食品科学
背景情况:
- 全球范围内,Campylobacter jejuni是导致食源性肠炎的首要原因,通常来自家禽.
- 严重的C. jejuni感染导致腹,是死亡的重要原因.
- 了解宿主-病原体相互作用对于开发有效的干预措施至关重要.
研究的目的:
- 为了研究Saccharomyces cerevisiae衍生的β-1,3/1,6-葡萄糖 (BGL) 对C. jejuni-宿主细胞相互作用的影响.
- 评估BGL对细菌粘附和宿主细胞免疫反应的影响.
主要方法:
- 在不同度BGL的存在下,C. jejuni与人类肠道Caco-2细胞的同时化.
- 用BGL对细菌或宿主细胞进行预化试验,以确定相互作用部位.
- 评估BGL对巨细胞 (RAW 264.7) 细胞和C. jejuni内部化的影响.
主要成果:
- BGL显著降低了C. jejuni对Caco-2细胞的附着性,以剂量依赖的方式 (高达45%).
- BGL 损害了 C. jejuni 识别和附着宿主细胞的能力.
- 尽管减少了细菌对这些细胞的粘附,但BGL刺激了zymosan颗粒的细胞化和巨细胞对C. jejuni的内化.
结论:
- 酵母β-葡萄糖 (BGL) 有效地抑制了C. jejuni对肠道上皮细胞的粘附.
- BGL增强了免疫系统通过巨细胞激活清除C. jejuni的能力.
- 通过调节宿主-病原体相互作用,BGL显示为预防C. jejuni感染的有希望的预防剂.
关键词:
凝聚力 凝聚力 凝聚力在Caco-2中使用.坎比洛巴克特 (Campylobacter jejuniuni) 是一个常见的菌类.葡萄糖是一种葡萄糖.巨细胞是一个巨细胞.曼南曼南是什么意思 曼南曼南这种植物是Saccharomyces cerevisiae.酵母酵母是一种酵母.更多相关视频
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