MicroRNA-Mediated Regulatory Networks in Helicobacter pylori-Associated Gastric Cancer
Omid Karimdadi Sariani1, Mahroo Mohamadi2, Zahra Gharagheizi3
1Department of Genetics, College of Sciences, Kazerun Branch, Islamic Azad University, Kazerun, Iran.
Biochemistry Research International
|December 5, 2025
Summary
MicroRNAs (miRNAs) are crucial in gastric cancer (GC) development and progression. Targeting these small noncoding RNAs offers potential for early GC diagnosis and novel therapies against H. pylori-related diseases.
Area of Science:
- Microbiology
- Molecular Biology
- Oncology
Background:
- Gastric cancer (GC) etiology is complex, with Helicobacter pylori infection being a major risk factor.
- H. pylori virulence factors, including CagA and VacA, disrupt cellular processes like autophagy, contributing to gastritis, ulcers, and GC.
- MicroRNAs (miRNAs) are key regulators of gene expression, influencing tumor suppressor and oncogene pathways relevant to GC.
Purpose of the Study:
- To review the role of miRNAs in gastric cancer (GC) pathogenesis and H. pylori infection.
- To explore the potential of miRNAs as biomarkers for early GC diagnosis, progression monitoring, and treatment outcome prediction.
- To assess the therapeutic potential of targeting miRNAs for H. pylori-related gastrointestinal diseases.
Main Methods:
- Literature review of studies investigating miRNAs in H. pylori infection and gastric cancer.
- Analysis of dysregulated miRNA expression profiles in GC patients.
- Examination of miRNA interactions with H. pylori virulence factors and host cellular pathways.
Main Results:
- Specific miRNAs (e.g., miR-124, miR-145, miR-21) are significantly dysregulated in GC.
- miRNAs modulate H. pylori-induced inflammation and the expression of bacterial virulence factors.
- Altered miRNA expression impacts GC development, progression, and response to therapy.
Conclusions:
- miRNAs represent promising biomarkers for early GC detection and disease monitoring.
- Targeting specific miRNAs could offer novel therapeutic strategies for H. pylori-related conditions, including GC.
- Further research is essential to elucidate the intricate roles of miRNAs in H. pylori pathogenesis and to develop effective miRNA-based interventions.
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