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Molecular and Immunologic Techniques in a Genetically Engineered Mouse Model of Gastrointestinal Stromal Tumor

Molecular and Immunologic Techniques in a Genetically Engineered Mouse Model of Gastrointestinal Stromal Tumor

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Protocol for chemically induced murine gastric tumor model.

Ke Li¹, Ao Wang¹, Huijuan Liu¹

¹Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China.

|September 29, 2021

Summary

N-Methyl-N-nitrosourea, derived from dietary nitrite and Helicobacter pylori, causes mutations and gastric premalignancy in mice. This study details a protocol for inducing and analyzing gastric tumors in mice for cancer research.

Keywords:

Cancer Cell Biology Model Organisms

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Area of Science:

Oncology
Gastroenterology
Molecular Biology

Background:

N-Methyl-N-nitrosourea (NMU) is an N-nitroso compound implicated in gastric carcinogenesis.
Dietary nitrite can be converted to NMU by Helicobacter pylori infection.
NMU induces somatic mutations in epithelial cells, leading to gastric premalignancy.

Purpose of the Study:

To provide a detailed protocol for inducing gastric tumors in a mouse model.
To establish a method for analyzing the phenotypes of induced gastric tumors.
To offer a reproducible model for studying gastric cancer initiation and progression.

Main Methods:

Administration of N-Methyl-N-nitrosourea (NMU) to mice to induce gastric tumors.
Detailed protocol for tumor induction and subsequent phenotypic analysis.
Utilizing a mouse model for studying gastric cancer development.

Main Results:

Successful induction of gastric tumors in mice using the NMU protocol.
Characterization of tumor phenotypes resulting from NMU exposure.
Validation of the mouse model for gastric cancer research.

Conclusions:

The described protocol effectively induces gastric tumors in mice.
This mouse model is suitable for investigating the mechanisms of gastric cancer initiation and growth.
The protocol serves as a valuable tool for the scientific community studying gastric cancer.