过度活跃的肠质细胞通过驱动神经元中的异常刺激反应,导致炎症后的持续性失灵性
Luisa Seguella1, Beatriz Thomasi2, Silvia Basili Franzin3
1Department of Physiology, Michigan State University, East Lansing, Michigan; Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, Rome, Italy.
Cellular and molecular gastroenterology and hepatology
|September 24, 2025
概括
肠道炎症通过改变肠道质细胞引起持久的运动缺陷,导致神经元过度刺激和肠道功能受损. 准质信号可能治疗持续的肠道动力障碍.
科学领域:
- 胃肠病学 胃肠病学
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
背景情况:
- 肠道炎症可能导致长期的运动功能障碍,即使在炎症消失后.
- 这些持续的变化与肠道神经系统 (ENS) 的神经可塑性有关.
- 了解驱动ENS神经可塑性后炎症的机制对于治疗IBS和IBD等相关疾病至关重要.
研究的目的:
- 为了调查急性炎症是否会诱导促进神经元过度兴奋的质变化.
- 确定这些质变化在随后的肠道运动功能障碍中的作用.
主要方法:
- 利用基因编码的Ca2+传感器研究ENS运动神经回路中的细胞活动.
- 采用化学遗传学来操纵和评估质和神经元功能.
- 在急性炎症解消后检查了肠道运动功能.
主要成果:
- 在急性炎症后,肠内质变得过度刺激,导致神经元异常激发.
- 这种神经质过度兴奋性会破坏肠道运动控制,改变神经元活动.
- 关键的机制包括改变的基抑制,前列腺素E2和增强的连xin-43 hemichannel 活动在细胞内.
结论:
- 肠道质细胞在炎症后的持续性肠道动力障碍中发挥着关键作用.
- 针对肠质信号通路的疗法显示出治疗慢性肠道运动障碍的潜力.
相关概念视频
Enteric Nervous System: Regulation of GI Motor Activity
1.7K
The Enteric Nervous System (ENS) plays a pivotal role in regulating gastrointestinal or GI motor activity. This complex network of nerves, deeply embedded within the gut wall, responds to changes in the gut environment and receives input from both the autonomic nervous system and the central nervous system. By doing so, the ENS operates various programs tailored to the body's nutritional status and needs.
During periods of fasting, the ENS initiates the migrating myoelectric complex, a...
During periods of fasting, the ENS initiates the migrating myoelectric complex, a...
1.7K
Nerve Supply of the GI Tract
3.3K
The neuronal supply to the gastrointestinal (GI) tract is essential for regulating various functions, including digestion, absorption, and movement of food. This intricate network of nerves is known as the enteric nervous system (ENS), often referred to as the "second brain" of the body.
The enteric nervous system consists of two major plexuses: the myenteric plexus (Auerbach's plexus) and the submucosal plexus (Meissner's plexus). These plexuses are located within the layers of...
The enteric nervous system consists of two major plexuses: the myenteric plexus (Auerbach's plexus) and the submucosal plexus (Meissner's plexus). These plexuses are located within the layers of...
3.3K
Gastrointestinal Motility Disorders
1.1K
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...
1.1K
Irritable Bowel Syndrome I: Introduction
923
Irritable Bowel Syndrome (IBS) is characterized by functional disturbances in the gastrointestinal system, presenting a cluster of symptoms without evident structural or biochemical abnormalities. It primarily affects the large intestine and may cause abdominal pain, bloating, excessive gas, diarrhea, constipation, or both.
IBS is a chronic condition that can persist over a long period or recur frequently.
The pathogenesis of IBS involves a complex interplay of the following factors:
Altered...
IBS is a chronic condition that can persist over a long period or recur frequently.
The pathogenesis of IBS involves a complex interplay of the following factors:
Altered...
923
Gastric Motility
2.8K
Gastric motility is the coordinated contraction and relaxation of stomach muscles that convert ingested food into chyme, a semi-liquid substance ready for further digestion in the intestines. The process begins with the vagus nerve inducing the relaxation of the smooth muscles in the fundus and body of the stomach, allowing these regions to expand and accommodate up to approximately 1.5 liters of food and liquid.
Peristaltic Waves and Chyme Formation
Upon food entry, the stomach initiates...
Peristaltic Waves and Chyme Formation
Upon food entry, the stomach initiates...
2.8K
Glial Cells
93.2K
Overview
93.2K


