Related Experiment Video

Updated: Sep 1, 2025

Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT
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Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT

Published on: January 22, 2018

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Receptor Tyrosine Kinases Amplified in Diffuse-Type Gastric Carcinoma: Potential Targeted Therapies and Novel

Hideki Yamaguchi1, Yuko Nagamura1, Makoto Miyazaki1

  • 1Department of Cancer Cell Research, Sasaki Institute, Sasaki Foundation, Tokyo 101-0062, Japan.

Cancers
|August 12, 2022
PubMed

Insights

Diffuse-type gastric carcinoma (DGC) is an aggressive cancer subtype with poor prognosis. Receptor tyrosine kinase (RTK) gene amplification drives DGC progression and peritoneal metastasis, offering potential therapeutic targets.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Gastric cancer (GC) is a leading cause of cancer mortality globally.
  • Diffuse-type gastric carcinoma (DGC), an aggressive GC subtype, presents unique challenges due to rapid infiltration, desmoplasia, and frequent metastasis.
  • Distinct clinical behaviors suggest unique oncogenic drivers in DGC compared to other GC subtypes.

Purpose of the Study:

  • To review the role of receptor tyrosine kinase (RTK) gene amplification in the malignant progression of DGC.
  • To highlight the significance of RTK alterations in DGC peritoneal metastasis.
  • To explore potential targeted therapeutic strategies based on RTK signaling.

Main Methods:

  • Literature review focusing on studies investigating gene amplification and RTK signaling in DGC.
  • Analysis of clinical and molecular data related to DGC progression and metastasis.
  • Synthesis of current understanding of RTK pathways in DGC pathogenesis.

Main Results:

  • Gene amplification leading to aberrant RTK activation is increasingly recognized as a key driver in DGC.
  • RTK signaling plays a critical role in the characteristic peritoneal metastasis of DGC.
  • Specific RTK alterations are associated with the aggressive phenotype and poor prognosis of DGC.

Conclusions:

  • RTK gene amplification is a crucial oncogenic mechanism in diffuse-type gastric carcinoma.
  • Targeting RTK signaling pathways presents a promising avenue for novel DGC therapeutics.
  • Understanding RTK involvement in peritoneal metastasis could improve treatment strategies for DGC patients.
Keywords:
diffuse-type gastric carcinomagene amplificationperitoneal disseminationreceptor tyrosine kinase

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