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Updated: Jun 12, 2026

Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT
Published on: January 22, 2018
Dysregulation of cellular signaling in gastric cancer
William K K Wu1, Chi H Cho, Chung W Lee
1LKS Institute of Health, Department of Medicine and Therapeutics, The Chinese University of Hong Kong, China. wukakei@cuhk.edu.hk
Abstract:
The pathogenesis of gastric cancer is complex and related to multiple factors. Dysregulation of intracellular signaling pathways represents a common pathogenic mechanism and may be amenable to drug targeting. Multiple well-established oncogenic pathways, such as those mediated by cell cycle regulators, nuclear factor-kappaB, cyclooxygenase-2 and epidermal growth factor receptor are implicated in gastric carcinogenesis. Emerging evidence also underscores the importance of signaling pathways involved in the developmental process, including transforming growth factor-beta/bone morphogenetic protein signaling, Wnt/beta-catenin signaling, Hedgehog signaling and Notch signaling. Understanding their biological significance will provide a rational basis for drug development. Their relative importance and cross-talk in gastric carcinogenesis, however, are still not completely understood and warrant further investigation.
Insights
Gastric cancer pathogenesis involves complex signaling pathways. Targeting these pathways, including developmental ones, offers potential for new drug development, though their roles need further study.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Signaling
Background:
- Gastric cancer pathogenesis is multifactorial.
- Dysregulated intracellular signaling pathways are common mechanisms.
- Established oncogenic pathways (e.g., NF-κB, EGFR) and developmental pathways (e.g., TGF-β, Wnt) are implicated.
Purpose of the Study:
- To review the role of intracellular signaling pathways in gastric carcinogenesis.
- To highlight the significance of developmental signaling pathways in gastric cancer.
- To provide a basis for targeted drug development.
Main Methods:
- Literature review of signaling pathways in gastric cancer.
- Analysis of established and emerging oncogenic pathways.
- Discussion of developmental signaling pathways.
Main Results:
- Multiple signaling pathways, including cell cycle regulators, NF-κB, COX-2, and EGFR, are involved in gastric carcinogenesis.
- Developmental pathways such as TGF-β/BMP, Wnt/β-catenin, Hedgehog, and Notch signaling are increasingly recognized.
- Cross-talk and relative importance of these pathways are not fully elucidated.
Conclusions:
- Understanding these signaling pathways is crucial for developing targeted therapies for gastric cancer.
- Further research is needed to clarify pathway interactions and their specific roles in gastric carcinogenesis.
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