相关实验视频
Updated: Jun 12, 2025

08:43
Investigating Intestinal Inflammation in DSS-induced Model of IBD
Published on: February 1, 2012
67.1K
波多菲洛毒素通过PI3K/AKT通路激活来缓解DSS诱导的性结肠炎
1Department of Emergency, The Affiliated Hospital of Southwest Medical University. Luzhou, Sichuan, China. 411028555@qq.com.
Physiological research
|May 28, 2025
概括
波多菲洛毒素通过减少炎症和修复肠道屏障,对性结肠炎具有显著的治疗作用. 它激活PI3K/AKT通路,为新的性结肠炎治疗提供了潜力.
科学领域:
- 药理学 药理学是指药理学的学科.
- 胃肠病学 胃肠病学
- 免疫学 免疫学 免疫学
背景情况:
- 性结肠炎 (UC) 是一种慢性炎症性肠病,治疗选择有限.
- 波多菲洛毒素是一种天然化合物,已证明具有抗炎性质.
- 了解其在UC中的机制对于治疗开发至关重要.
研究的目的:
- 在性结肠炎 (UC) 的小鼠模型中系统评估 podophyllotoxin 的治疗作用.
- 为了确定潜在的分子标和涉及到 podophyllotoxin 的作用的途径.
- 为podophyllotoxin作为UC的潜在治疗剂提供证据.
主要方法:
- 数据库选以识别与podophyllotoxin和UC相关的标,然后进行交叉分析.
- 基因本体学 (GO) 和KEGG通路丰富分析.
- 用DSS诱导的UC小鼠模型进行分子对接模拟和体内实验.
主要成果:
- 确定了120个潜在的治疗点,富含PI3K-Akt信号传递等途径.
- 波多菲洛毒素缓解了UC症状,减少了结肠损伤,并增强了肠道屏障功能.
- 它降低了炎症性细胞因子 (TNF-α,IL-1β,IL-6),改善了氧化应激,并上调了紧结蛋白 (ZO-1,ocludin).
结论:
- 波多菲洛毒素在性结肠炎中显示出显著的治疗潜力.
- 它的有效性是通过PI3K/AKT信号通路的激活来实现的.
- 这些发现支持podophyllotoxin作为开发针对PI3K/AKT通路的新型UC治疗的候选者.
相关概念视频
Drugs for Treatment of Ulcerative Colitis in IBD
128
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...
128
Drugs for Treatment of Diarrhea-Predominant IBS
151
Diarrhea-predominant irritable bowel syndrome (IBS-D) is a subtype of IBS characterized primarily by frequent, loose, or watery stools, abdominal pain, and abdominal discomfort. Therapeutic approaches to managing IBS-D include dietary changes, stress management techniques, and pharmaceutical interventions.
Two specific drugs used in the treatment are alosetron (Lotronex) and eluxadoline (Viberzi). Alosetron, a 5-HT3 antagonist, works by slowing the movement of stools in the gut, reducing bowel...
Two specific drugs used in the treatment are alosetron (Lotronex) and eluxadoline (Viberzi). Alosetron, a 5-HT3 antagonist, works by slowing the movement of stools in the gut, reducing bowel...
151
Role Of Notch Signalling In Intestinal Stem Cell Renewal
2.1K
Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
2.1K
Pathophysiology of Peptic Ulcer Disease: Mucosal Defense Factors
356
Peptic ulcer disease, commonly called PUD, represents a multifaceted condition characterized by disruptions in the lining of the gastrointestinal (GI) tract. Central to the protection of the gastrointestinal lining is the mucosal-bicarbonate barrier. This physiological defense mechanism is a formidable shield against the corrosive effects of gastric acid and pepsin secretion in the stomach. Its role is pivotal in maintaining the structural integrity of the stomach's inner lining.
356
The JAK-STAT Signaling Pathway
8.7K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
8.7K
Inflammatory Bowel Disease I: Ulcerative Colitis
148
Introduction
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
148

