合成细菌的代谢工程,以生产5-氧乙酸作为治疗大肠炎的治疗策略
Wei Du1, Chunling Zhang2, Zhen-Ping Zou1
1Lab of Biosystems and Microanalysis, State Key Laboratory of Bioreactor Engineering, Institute of Engineering Biology and Health, East China University of Science and Technology, Shanghai 200237, China.
ACS synthetic biology
|March 11, 2026
概括
针对肠道细菌进行向.
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:
- 肠道微生物群失调与大肠炎的进展有关,通常是通过改变托代谢.
- 目前的治疗策略需要更广泛的活性物质,用于工程益生菌.
研究的目的:
- 为了研究微生物三甲酸代谢物5-氨酸 (5-HIAA) 在结肠炎中的作用.
- 探索5-HIAA作为炎症性肠病 (IBD) 的治疗剂.
主要方法:
- 使用硫酸德克斯 (DSS) 诱导的小鼠结肠炎模型.
- 施用了外源的5-二乙酸 (5-HIAA) 和工程细菌进行输送.
- 分析了肠道微生物群结构,肠道上皮质屏障完整性和分子信号通路 (AhR,IL-10,NF-κB).
主要成果:
- DSS诱导的大肠炎降低了肠道微生物5-HIAA水平.
- 外源性5-HIAA补充恢复了肠道屏障功能,并减少了结肠炎症状.
- 5-HIAA激活了亚利碳化合物受体 (AhR),增强了IL-10并通过NF-κB通路调节改善了紧结蛋白表达.
- 工程细菌成功输送了5-HIAA,抑制了小鼠的大肠炎.
结论:
- 针对性调节微生物代谢物5-HIAA是一种抑制大肠炎的有效策略.
- 针对特定地点的5-HIAA输送的工程细菌为IBD提供了一种新的治疗方法.
相关概念视频
Drugs for Treatment of Ulcerative Colitis in IBD
585
Ulcerative colitis is a chronic inflammatory condition primarily affecting the colon and rectum. The primary drugs used in the treatment of ulcerative colitis are aminosalicylates. They exhibit anti-inflammatory and immunosuppressive properties. They modulate inflammatory mediators and inhibit the activity of nuclear factor κB (NF-κB). Aminosalicylates also reduce inflammation by inhibiting prostaglandin and leukotriene production and decreasing neutrophil chemotaxis and superoxide...
585
Inflammatory Bowel Disease IV: Pharmacological Management
883
Upon diagnosis, managing Inflammatory Bowel Disease (IBD) involves addressing several crucial aspects. The primary goals include resting the bowel, correcting malnutrition, and providing symptomatic relief. Resting the bowel may consist of medications to reduce inflammation and promote healing. Correcting malnutrition is essential, often requiring dietary adjustments and nutritional supplements. Symptomatic relief aims to ease pain, diarrhea, and other discomforts in IBD.
Pharmacologic...
Pharmacologic...
883
Bioremediation
22.7K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
22.7K


