一种Gastrodia elata多糖,用于恢复肠道免疫性损害
Zhuowen Chen1, Ling Li1, Lanping Guo2
1School of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; Key Laboratory of Sustainable Utilization of Panax Notoginseng Resources of Yunnan Province, Kunming 650500, China.
International journal of biological macromolecules
|March 7, 2025
概括
这项研究表明,一个Gastrodia elata多糖片段 (SRGP) 激活TLR4/NF-κB通路,通过恢复微生物群和减轻化疗引起的肠损伤来改善肠道健康.
科学领域:
- 药理学 药理学是指药理学的学科.
- 免疫学 免疫学 免疫学
- 微生物组研究 微生物组研究
背景情况:
- 胃叶多糖 (Gastrodia elata polysaccharides,简称SRGP) 是一种具有潜在治疗应用的生物活性化合物.
- 环胺 (CTX) 诱导显著的肠粘膜损伤和肠道失生症.
- 了解SRGP在调节免疫反应和肠道健康方面的机制至关重要.
研究的目的:
- 为了研究来自Gastrodia elata (SRGP) 的特定多糖体片段的免疫调节作用.
- 评估SRGP在减轻小鼠中循环胺 (CTX) 诱导的肠粘膜损伤方面的疗效.
- 阐明SRGP对肠道微生物群组成和功能的影响.
主要方法:
- 从Gastrodia elata.中提取和表征一个多糖片段 (SRGP).
- 在体外和体内实验中评估SRGP对TLR4/NF-κB信号通路的影响.
- 16S rRNA测序以分析肠道微生物群的组成,以应对SRGP治疗.
- 评估肠道粘膜完整性和紧结蛋白表达.
主要成果:
- SRGP激活TLR4/NF-κB信号通路,显示出免疫调节的潜力.
- 在小鼠模型中,SRGP显著缓解了循环胺 (CTX) 诱导的肠粘膜损伤.
- 治疗SRGP恢复了肠道微生物群的组成,增强了有益的细菌,并减轻了失生症.
- SRGP上调紧密结蛋白,改善肠道屏障的功能.
结论:
- SRGP对肠道粘膜表现出显著的免疫调节和保护作用.
- 通过调节TLR4/NF-κB通路,SRGP可以改善CTX诱导的肠道损伤,并恢复肠道微生物群的稳定.
- SRGP代表了一种有前途的治疗剂,用于管理化疗引起的胃肠道副作用和相关的失生症.
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