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Updated: Mar 3, 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
Gastric Cancer in the Era of Precision Medicine
Xi Liu1,2, Stephen J Meltzer2
1Department of Pathology, First Affiliated Hospital of Xi' an Jiaotong University, Xi' an, Shaanxi, China.
Abstract:
Gastric cancer (GC) remains the third most common cause of cancer death worldwide, with limited therapeutic strategies available. With the advent of next-generation sequencing and new preclinical model technologies, our understanding of its pathogenesis and molecular alterations continues to be revolutionized. Recently, the genomic landscape of GC has been delineated. Molecular characterization and novel therapeutic targets of each molecular subtype have been identified. At the same time, patient-derived tumor xenografts and organoids now comprise effective tools for genetic evolution studies, biomarker identification, drug screening, and preclinical evaluation of personalized medicine strategies for GC patients. These advances are making it feasible to integrate clinical, genome-based and phenotype-based diagnostic and therapeutic methods and apply them to individual GC patients in the era of precision medicine.
Insights
Gastric cancer (GC) research is advancing rapidly through next-generation sequencing and novel preclinical models. These tools are revolutionizing the understanding of GC subtypes and paving the way for precision medicine approaches.
Area of Science:
- Oncology
- Genomics
- Translational Medicine
Background:
- Gastric cancer (GC) is a leading cause of cancer mortality globally, characterized by limited effective therapeutic options.
- Recent advancements in genomic technologies and preclinical models are transforming the understanding of GC pathogenesis.
Purpose of the Study:
- To review the current understanding of the genomic landscape of gastric cancer.
- To highlight the role of novel preclinical models in advancing GC research and personalized medicine.
Main Methods:
- Genomic characterization using next-generation sequencing.
- Development and application of patient-derived tumor xenografts and organoids.
- Integration of clinical, genomic, and phenotypic data.
Main Results:
- The genomic landscape of GC has been significantly delineated, revealing molecular subtypes.
- Novel therapeutic targets have been identified for specific GC molecular subtypes.
- Patient-derived models are effective for biomarker discovery and drug screening.
Conclusions:
- Advances in genomics and preclinical models are revolutionizing gastric cancer research.
- These tools facilitate the development of personalized medicine strategies for GC patients.
- Integrating diverse data types is crucial for advancing precision oncology in gastric cancer.
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