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Murine Colitis Modeling using Dextran Sulfate Sodium DSS
Published on: January 19, 2010
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通过减少炎症,免疫调节和粘膜保护作用,在小鼠中减轻了DSS诱导的大肠炎的α-血溶性链球菌衍生曼纳提德
Sinan Chen1, Fan Li1, Hongduo Li2
1Microbiology Institute of Shaanxi, Xiying Road 76, Xi'an, China.
Probiotics and antimicrobial proteins
|November 12, 2025
概括
曼纳提德 (Mannatide) 是源自Streptococcus发酵的药物,通过减少炎症和改善肠道健康,有效治疗小鼠结肠炎. 这种葡萄糖通过调节免疫反应和肠道微生物群,显示出新型结肠炎治疗的潜力.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
背景情况:
- 曼纳提德是一种来自α-溶血性链球菌的糖,具有免疫调节作用.
- 关于曼纳提德治疗大肠炎及其机制的临床数据有限.
研究的目的:
- 通过发酵产生曼纳提德,并在大肠炎的小鼠模型中评估其疗效和机制.
主要方法:
- 通过α-溶血性Streptococcus的浸泡发酵产生曼纳提德.
- 评估曼纳提德对小鼠DSS诱导的大肠炎的影响,包括临床,病理和分子分析.
- 对肠道微生物群组成和相关代谢途径的分析.
主要成果:
- 曼纳提德 (0.15毫克/毫升) 缓解了结肠炎症状,减少了炎症,改善了组织学分数.
- 它增强了SOD活动和调节PI3K/Akt信号通路,包括NF-κB和Th17/Treg平衡.
- 曼纳提德改变了肠道微生物群,增加了有益的细菌并影响了关键的代谢途径,从而缓解了结肠炎.
结论:
- 曼纳提德有效地改善了小鼠的DSS诱导的大肠炎.
- 它的治疗作用包括抗炎作用,免疫平衡调节和肠道微生物群调节.
- 这项研究支持曼纳提德作为治疗大肠炎的治疗剂的潜力.
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