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β-葡萄糖抑制了新生儿骨髓状细胞的功能
Yingying Chen1,2,3, Hui Li4, Lin Zhu4
1Key Laboratory of Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China.
Journal of immunology research
|May 22, 2024
概括
作为酵母细胞壁的组成部分,β-葡萄糖通过降低免疫抑制性骨髓衍生抑制细胞 (MDSCs) 来影响新生儿免疫力. 这表明β-葡萄糖可能在生命早期促进有益的免疫成熟.
科学领域:
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
- 细胞生物学 细胞生物学
背景情况:
- β-葡萄糖是真菌和细菌细胞壁的关键组成部分,被认为是病原体相关分子模式 (PAMPs).
- 以前的研究强调了β-葡萄糖作为免疫调节剂和免疫治疗中的辅助剂的潜力.
- 贝塔葡萄糖对新生儿免疫力的特定影响仍然在很大程度上未被探索.
研究的目的:
- 研究β-葡萄糖对髓状细胞群和新生小鼠功能的影响.
- 阐明β-葡萄糖影响未成熟的髓状细胞,特别是髓状细胞衍生抑制细胞 (MDSCs) 的机制.
主要方法:
- 对新生小鼠脏和骨髓中髓细胞频率和数量的分析.
- 功能性测试用于评估新生儿骨髓状细胞在暴露于β-葡萄糖后的免疫抑制能力.
- 流细胞测量和基因表达分析,以评估多态核 (PMN) -MDSCs中的活性氧物种 (ROS) 和阿基因酶-1 (Arg1) 生产.
- 试验室内实验以确定β-葡萄糖对PMN-MDSC频率和ROS水平的影响.
主要成果:
- β-葡萄糖没有改变新生儿脏和骨髓中髓状细胞的总体频率或数量.
- 贝塔-葡萄糖损害了新生儿骨髓系衍生抑制细胞 (MDSC) 的免疫抑制功能.
- 在新生小鼠中,用β-葡萄糖治疗的多态核细胞 (PMN) -MDSCs表现出活性氧物种 (ROS) 和酶-1 (Arg1) 的水平降低.
- 在体外,β-葡萄糖的使用显著降低了PMN-MDSCs的频率和ROS产量.
结论:
- 在生命早期,β-葡萄糖的使用似乎促进了髓状细胞的成熟.
- 这些发现表明,β-葡萄糖对新生儿髓状细胞功能的调节可能会在以后的生活中促进有益的免疫结果.
- 贝塔葡萄糖对新生儿MDSCs的影响需要进一步研究潜在的免疫疾病治疗应用.
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