来自三菌的蛋白质通过改变肠道微生物群和改善肠道屏障功能来改善结肠炎
Shao Rong Long1, Wen Xuan Shang1, Hui Ran Zhang1
1Department of Parasitology, Medical College of Zhengzhou University, Zhengzhou, Henan 450001, China.
International immunopharmacology
|December 8, 2023
概括
来自Trichinella spiralis (rTsSPI) 的血清蛋白酶抑制剂通过促进2型免疫力和增强有益的肠道细菌来改善小鼠的结肠炎. 这种免疫治疗策略改善了肠道屏障功能,并在炎症性肠病 (IBD) 模型中减少了炎症.
科学领域:
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
- 胃肠病学 胃肠病学
背景情况:
- 炎症性肠病 (IBD),包括克罗恩氏病和性结肠炎,是一个重大的临床挑战.
- 虫及其产品正在研究其在IBD中的潜在抗炎性质.
- 虫衍生分子调节炎症的精确机制尚未完全理解.
研究的目的:
- 研究Trichinella spiralis排泄分泌产物 (rTsSPI) 的血清蛋白酶抑制剂在结肠炎中的治疗潜力.
- 在大肠炎的小鼠模型中阐明rTsSPI抗炎作用的潜在机制.
主要方法:
- 在雌性C56BL/6小鼠中诱导大肠炎,使用硫酸 (DSS) 或沙门氏菌.
- 用rTsSPI来评估其对免疫和炎症反应的影响.
- 分析肠道微生物群的组成,结肠上皮膜的透性,以及紧密结合蛋白的表达.
主要成果:
- rTsSPI治疗显著减少了大肠炎的临床,宏观和组织学迹象.
- 治疗诱导的2型免疫,其特点是增加M2巨细胞招募和IL-10表达,同时降低中性粒细胞透和TNF-α水平.
- rTsSPI改善了肠道微生物群的多样性,并增加了诸如Bifidobacterium和Ruminclostridium等有益细菌的丰富性.
结论:
- 用rTsSPI进行预治疗通过促进涉及M2巨细胞的Th2型免疫反应来改善小鼠的结肠炎.
- rTsSPI免疫疗法增强了益生菌殖民,并维持了肠上皮质屏障功能,为控制IBD炎症过程提供了潜在的策略.
更多相关视频
08:58Analyzing Beneficial Effects of Nutritional Supplements on Intestinal Epithelial Barrier Functions During Experimental Colitis
Published on: January 5, 2017
12.3K
08:53Investigating the Alleviating Effects of Bacillus cereus Administration on Colitis through Gut Microbiota Modulation
Published on: July 27, 2022
852
相关概念视频
Physiology of Enteric Nervous System and Gut Health
276
The gastrointestinal tract, responsible for the digestion and absorption of nutrients, is safeguarded by the intestinal barrier, which consists of secretory, physical, and immune components. At the forefront is the secretory barrier, composed of essential elements such as mucus, gut microbiota, and defense proteins. They collaborate to break down food particles, facilitate nutrient absorption, and maintain optimal gut health. These secretory components ensure the smooth functioning of the...
276
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
335
Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
335
