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Updated: Jul 19, 2026
06:21
Multi-Gene Single Nucleotide Polymorphism Detection in Gastric Cancer Based on Ion Semiconductor Sequencing Platform
Published on: May 10, 2024
[Hereditary diffuse gastric cancer]
Alain Sezeur1, Astrid Schielke, Lionel Larue
1Service de Chirurgie digestive, Groupe Hospitalier Diaconesses-Croix Saint-Simon, Paris. asezeur@hopital-dcss.org <asezeur@hopital-dcss.org>
Gastroenterologie Clinique Et Biologique
|November 1, 2006
Summary
Hereditary diffuse gastric cancer (HDGC) is caused by CDH1 gene mutations, leading to poor prognosis. Genetic testing and prophylactic gastrectomy are recommended for mutation carriers due to high penetrance and early onset.
Area of Science:
- Oncology
- Genetics
- Gastroenterology
Background:
- Some diffuse type gastric cancers have a hereditary basis.
- Histological hallmarks include poor cell differentiation and signet-ring cells.
- CDH1 gene mutations causing abnormal E-cadherin are the primary cause.
Purpose of the Study:
- To highlight the genetic basis of hereditary diffuse gastric cancer (HDGC).
- To emphasize the importance of genetic testing and prophylactic measures for mutation carriers.
- To outline clinical criteria for recommending genetic mutation screening.
Main Methods:
- Review of hereditary diffuse gastric cancer (HDGC) characteristics.
- Analysis of CDH1 gene mutations and E-cadherin's role.
- Evaluation of autosomal dominant inheritance patterns.
Main Results:
- HDGC is linked to CDH1 gene mutations with autosomal dominant transmission.
- High penetrance (67% in men, 83% in women) and early onset (before 40) are observed.
- Prophylactic gastrectomy is advised for mutation carriers due to poor prognosis.
Conclusions:
- Genetic mutation screening for CDH1 should be recommended for families meeting specific clinical criteria.
- Early detection and intervention through genetic testing and surgery can mitigate the severe prognosis of HDGC.
- Understanding the genetic underpinnings of HDGC is crucial for effective management and prevention strategies.
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