Association of Matrix Metalloproteinase-11 Genotypes With Taiwan Gastric Cancer Risk and Clinical Features

Area of Science:

• Genetics
• Oncology
• Molecular Biology

Background:

• Gastric cancer (GACA) is a leading cause of cancer mortality globally.
• Environmental factors like H. pylori, smoking, and alcohol are known risks.
• The role of genetic susceptibility, specifically MMP-11 polymorphisms, in GACA is not well understood.

Purpose of the Study:

• To investigate the association between matrix metalloproteinase-11 (MMP-11) single nucleotide polymorphisms (SNPs) and gastric cancer (GACA) risk.
• To explore the potential of MMP-11 SNPs as predictors of GACA metastasis and modifiers of gene-environment interactions.

Main Methods:

• A hospital-based case-control study was conducted with 161 GACA patients and 483 controls.
• Four MMP-11 SNPs (rs738791, rs2267029, rs738792, rs28382575) were genotyped using PCR-RFLP and direct sequencing.
• Logistic regression models were used to analyze associations with GACA risk and clinical outcomes.

Main Results:

• No overall association was found between MMP-11 SNPs and GACA susceptibility.
• The rs28382575 C allele was linked to an increased GACA risk (p=0.0377).
• Stratified analyses indicated that rs738791 genotypes were associated with metastasis, and certain genotypes of rs28382575 and rs738792 modified risks in smokers and drinkers.

Conclusions:

• MMP-11 polymorphisms are not suitable for population-level GACA risk screening.
• SNPs rs738791 and rs28382575 may predict GACA metastasis.
• SNPs rs28382575 and rs738792 might act as modifiers in gene-environment interactions for GACA.