Related Experiment Video
Updated: Aug 23, 2025

Mouse- and Human-derived Primary Gastric Epithelial Monolayer Culture for the Study of Regeneration
Published on: May 7, 2018
Down-regulation of TP53 is a highlighted molecular event in gastric ulcer
Reza Vafaee1, Somayeh Jahani Sherafat2, Mostafa Rezaei Tavirani3
1Critical Care Quality Improvement Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Aim:
The current study explored the crucial dysregulate proteins and biochemical pathways in gastric ulcer as its main aim.
Background:
Gastric ulcer as an acid-related gastrointestinal disease is known as one of the most public gastrointestinal disorders.
Methods:
A total of 100 proteins from STRING database were analyzed by Cytoscape and its applications to find the central proteins and the related biochemical pathways. Action map analysis was applied to explore regulatory relationships between the critical proteins.
Results:
Network analysis and gene ontology revealed that IL6, ALB, TNF, INS, IL1B, IL10, TP53, CXCL8, and PTGS2 are the highlighted proteins related to gastric ulcer. Six clusters of biochemical pathways, namely "response to external stimulus," "multicellular organismal process," "regulation of biological quality," "cellular response to stimulus," "cellular response to chemical stimulus," and "transport" were identified as the dysregulated pathway in patients.
Conclusion:
Down-regulation of TP53 by IL2, PTGS2, and TNF seems to be a main process occurring in gastric ulcer patients.
Related Concept Videos
Pathophysiology of Peptic Ulcer Disease: Mucosal Defense Factors
Pathophysiology 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...
Peptic 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...
Abnormal Proliferation
Peptic Ulcer Disease II: Pathophysiology
Damaging agents such as Helicobacter pylori, gastric acid, pepsin, and nonsteroidal anti-inflammatory drugs (NSAIDs) can weaken the mucosal defense, allowing hydrogen ions to infiltrate back and harm epithelial cells.
Acid Suppressive Drugs for Peptic Ulcer Disease: Proton Pump Inhibitors
Gastric acid, a potent cocktail of hydrogen and chloride ions, is produced in specialized parietal cells within the...

