Pharmacogenetics and stomach cancer: an update
Related Experiment Video
Updated: Jul 15, 2026

Multi-Gene Single Nucleotide Polymorphism Detection in Gastric Cancer Based on Ion Semiconductor Sequencing Platform
Published on: May 10, 2024
Giuseppe Toffoli1, Erika Cecchin
1C.R.O.-National Cancer Institute, Experimental and Clinical Pharmacology, via Franco Gallini 2, 33081 Aviano (PN), Italy. gtoffoli@cro.it
Abstract:
Although new drugs and association regimens have been used in recent years, the chemotherapeutic outcome for gastric cancer is still poor and improvement in patient survival is not satisfactory. Pharmacogenetics could represent a useful approach to optimize chemotherapeutic treatments in order to identify individuals that are true candidates for clinical benefits from therapy, avoiding the development of severe side effects. The most recent update regarding gastric cancer pharmacogenetics highlights a prominent role of genetic polymorphisms of thymidylate synthase and glutathione S-transferase in the pharmacological treatment with commonly used drugs, such as 5-fluorouracil and platinum derivatives. In order to validate the genetic markers, further larger scale and controlled studies are required. A future challenge is represented by the introduction of targeted therapy in gastric cancer treatment, with the potential emerging tool of pharmacogenetic impact on this field.
Insights
Pharmacogenetics can optimize gastric cancer chemotherapy by identifying patients who benefit most from drugs like 5-fluorouracil. Genetic markers in thymidylate synthase and glutathione S-transferase show promise for personalized treatment strategies.
Area of Science:
- Oncology
- Pharmacogenetics
- Cancer Genomics
Background:
- Gastric cancer chemotherapy outcomes remain poor despite advances.
- Personalized medicine approaches are needed to improve patient survival and reduce severe side effects.
- Pharmacogenetics offers a strategy to tailor chemotherapy based on individual genetic profiles.
Purpose of the Study:
- To review the role of pharmacogenetics in optimizing gastric cancer chemotherapy.
- To highlight key genetic polymorphisms influencing response to common chemotherapeutic agents.
- To discuss future directions, including targeted therapies and pharmacogenetic applications.
Main Methods:
- Literature review of recent studies on gastric cancer pharmacogenetics.
- Analysis of genetic polymorphisms in thymidylate synthase and glutathione S-transferase.
- Evaluation of their impact on treatment with 5-fluorouracil and platinum derivatives.
Main Results:
- Genetic polymorphisms in thymidylate synthase and glutathione S-transferase are significant in gastric cancer pharmacogenetics.
- These polymorphisms affect patient response to 5-fluorouracil and platinum-based chemotherapy.
- Further large-scale, controlled studies are necessary to validate these genetic markers.
Conclusions:
- Pharmacogenetics is crucial for optimizing gastric cancer treatment, identifying suitable candidates for chemotherapy.
- Genetic markers like polymorphisms in thymidylate synthase and glutathione S-transferase are key for personalized drug selection.
- Future research should focus on validating these markers and exploring pharmacogenetics in targeted gastric cancer therapies.
Related Concept Videos
Pharmacogenetics and Pharmacogenomics: Overview
Pharmacogenetics of Drug Metabolism: Overview
Pharmacogenomics: Identification of New Drug Targets
Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
Principles of Pharmacogenetics: Types of Genetic Variants
