Selectively Antagonizing the NOD1-Mediated Inflammatory Signaling Pathway Mitigates the Gastric Inflammation Induced
Xinhua Liu1, Dan Wang1, Xiduan Wei1
1School of Pharmaceutical Sciences, Tsinghua University, Haidian Dist, Beijing 100084, PR China.
Abstract:
Helicobacter pylori (H. pylori) infection is characterized by the complex interplay between H. pylori and gastric disorders. It has been established that NOD1 can be activated by the peptidoglycan (PGN) present in the cell wall of H. pylori, serving as a key mediator of inflammation and initiating the RIP2/NF-κB and MAPK inflammatory signaling pathways. In this article, we reported on the development of a 2-chloroquinazolin-4-ol derivative 66 as a potent and selective antagonist of both human and mouse NOD1, which effectively inhibited the expression of inflammatory cytokines (IL-6, TNF-α) and chemokines (CXCL1, CXCL8) in immune and epithelial cells, as well as inflammatory cytokines (KC, IL-6) in a H. pylori-induced murine model of gastritis following oral administration. This study laid a foundation for treating gastritis induced by H. pylori infection.
Related Concept Videos
01:17Gastritis-II: Pathophysiology
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
01:22Pathophysiology of Peptic Ulcer Disease: Injurious Factors
In the antrum region, G cells secrete the gastrin hormone that binds to gastrin-cholecystokinin-B (CCK2) receptors on parietal and enterochromaffin-like (ECL) cells in the fundic glands. Simultaneously, the vagus nerve releases acetylcholine, which binds...
01:24Pathophysiology of Peptic Ulcer Disease: Mucosal Defense Factors
01:16Treating Helicobacter pylori in Peptic Ulcers: Antimicrobial Therapy
01:30Peptic Ulcer Disease I: Introduction
An acute ulcer, marked by superficial erosion and minimal inflammation, swiftly resolves upon identifying and addressing the underlying cause. In contrast, a chronic ulcer persists, potentially eroding through the muscular wall and forming fibrous tissue.
Peptic ulcers can also be...
01:23Gastritis III: Clinical Manifestations and Management
Clinical manifestations of acute gastritis
The patient with acute gastritis may have a rapid onset of symptoms, such as epigastric pain or discomfort, dyspepsia, anorexia, hiccups, or nausea and vomiting, which can last from a few hours to a few days. Erosive or hemorrhagic gastritis may cause bleeding, which may manifest as blood in vomit or as...