The effect of VAV3 polymorphisms on thyroid cancer

Area of Science:

• Genetics and Epidemiology
• Oncology
• Molecular Biology

Background:

• Thyroid cancer incidence is rising in China.
• Limited research exists on risk factors in the Chinese Han population.

Purpose of the Study:

• To investigate the association between VAV3 gene variants and thyroid cancer susceptibility.
• To identify specific VAV3 variants that may influence thyroid cancer risk in the Chinese Han population.

Main Methods:

• A case-control study involving 510 thyroid cancer patients and 509 controls.
• Genotyping of VAV3 variants (rs17019602, rs7521681, rs4915076, rs1777451) using logistic regression.
• Analysis of gene-gene and gene-environment interactions using Multi-factor Dimensional Reduction (MDR).

Main Results:

• The VAV3 variant rs7521681 was associated with an increased risk of thyroid cancer (OR=1.74, p=0.012).
• The VAV3 variant rs4915076 showed a significant protective effect against thyroid cancer (OR=0.66, p=0.001) across different age groups and sexes.
• Rs17019602 increased susceptibility in men, while rs7521681 increased risk in women. An interaction model involving VAV3 variants and age was identified.

Conclusions:

• VAV3 gene variants are significantly associated with thyroid cancer susceptibility in the Chinese Han population.
• Specific VAV3 variants may serve as potential biomarkers for thyroid cancer risk.
• These findings offer new insights into the genetic etiology of thyroid cancer.