相关实验视频
Updated: Jul 27, 2026

07:33
A Mouse Model of Intestinal Partial Obstruction
Published on: March 5, 2018
21.3K
由肠道杯细胞皮埃佐1缺陷小鼠中的粘液减少引起的肠道过渡速度减慢,通过损伤的上皮质恒常作用
Feifei Fang1, Ying Liu1, Yilin Xiong1
1Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
International journal of molecular sciences
|September 28, 2023
概括
玻璃杯细胞中的Piezo1蛋白对肠道粘液的产生和运输至关重要. 它的缺乏通过减少粘液和破坏干细胞功能来减缓肠道运输.
科学领域:
- 胃肠病学 胃肠病学
- 细胞生物学 细胞生物学
- 身体生理学 身体生理学
背景情况:
- 杯状细胞 (GCs) 分泌粘液,对肠道运输至关重要.
- 皮埃佐1蛋白对GC功能至关重要,但其在肠道过渡中的作用尚不清楚.
研究的目的:
- 为了研究GCs中的Piezo1对肠道运输的影响.
- 阐明涉及粘液生产和干细胞功能的潜在机制.
主要方法:
- 野生型 (WT) 和GC特异性的皮埃佐1缺陷 (Piezo1ΔGC) 鼠标的比较.
- 分析肠道粘液,便形式,传输时间和上皮细胞组成.
- 器官培养以评估结肠干细胞 (CSC) 的增殖和分化.
主要成果:
- 在Piezo1ΔGC小鼠中,粘液减少与肠道过渡速度较慢相关.
- 在GC中皮埃佐1缺陷降低了粘液合成,并破坏了CSC的利基.
- 皮埃佐1ΔGC小鼠的CSC显示出减少的增殖和分化,导致更少的GC.
- 在结肠密室中减少Wnt和Notch信号被确定为潜在的机制.
结论:
- GC中的Piezo1对于维持肠上皮质平衡和粘液产生至关重要.
- GC Piezo1在调节肠道过渡功能方面发挥着重要作用.
更多相关视频
09:24Functional Assessment of Intestinal Permeability and Neutrophil Transepithelial Migration in Mice using a Standardized Intestinal Loop Model
Published on: February 11, 2021
7.1K
06:43Functional Assessment of Intestinal Tight Junction Barrier and Ion Permeability in Native Tissue by Ussing Chamber Technique
Published on: May 26, 2021
5.6K
相关概念视频
Gastrointestinal Motility Disorders
Gastrointestinal or GI motility disorders are characterized by irregular gastrointestinal tract movements, disrupting food transit from the mouth to the anus. They are caused by damage or dysfunction in gut muscles or nerves. These disorders can cause symptoms such as severe constipation, diarrhea, abdominal pain, and swallowing difficulties. Disorders can affect any segment of the GI tract and range widely in severity, from common conditions like GERD to life-threatening conditions like...
Dysbiosis of the Gut Microbiota
The human gut microbiome includes a diverse array of microbial species, including beneficial commensals and opportunistic pathogens, which interact to support host health. These microbes contribute to essential functions such as nutrient metabolism, immune system modulation, and maintenance of intestinal barrier integrity. However, disruptions to this equilibrium—referred to as dysbiosis—can have widespread physiological consequences.Dysbiosis is often characterized by reduced microbial...