在FMN1/GREM1基因区域内的遗传局部与结肠直肠癌风险中的身体质量指数相互作用
Elom K Aglago1, Andre Kim2, Yi Lin3
1Department of Epidemiology and Biostatistics, Imperial College London, School of Public Health, London, United Kingdom.
Cancer research
|May 30, 2023
概括
肥胖会增加结直肠癌的风险. 在FMN1/GREM1区域的一个基因变异与体重指数 (BMI) 相互作用,影响这种风险,特别是在CC基因型的个体中. 这突显了癌症发展中的基因环境相互作用.
科学领域:
- 遗传学 遗传学 是一个
- 流行病学 流行病学
- 在瘤学瘤学.
背景情况:
- 结肠直肠癌 (CRC) 的风险受到遗传,环境和生活方式因素的影响,包括肥胖.
- 基因与环境相互作用 (GxE) 提供了关于肥胖对CRC的影响的见解.
- 了解这些相互作用对于制定有针对性的预防策略至关重要.
研究的目的:
- 为了研究CRC风险的体质指数 (BMI) 和单核酸多态 (SNP) 之间的全基因组GxE相互作用.
- 为了确定特定的遗传基因位点,修改BMI和CRC之间的关联.
- 探索FMN1/GREM1基因区域在与肥胖相关的CRC风险中的作用.
主要方法:
- 利用了来自三个国际联盟 (CCFR,CORECT,GECCO) 的36415例CRC病例和48451例控制的数据.
- 采用逻辑回归与乘法项 (1DF测试),两步EDGE方法和GxE相互作用分析的联合3DF测试.
- 评估了常见的SNP和BMI之间的全基因组相互作用.
主要成果:
- 在FMN1/GREM1基因区域中,BMI和SNP (rs58349661) 之间的统计学上显著的GxE相互作用被使用两步方法确定.
- 这种SNP也被3DF测试所暗示,并在1DF测试中显示出暗示意义.
- 具有rs58349661的CC基因型的个体在超重和肥胖时显示CRC风险增加,而TT基因型携带者在BMI类别之间没有显著的关联.
结论:
- 在FMN1/GREM1基因区域中发现了一种新的基因位点,它与BMI相互作用,影响CRC风险.
- 这一发现强调了GxE相互作用在与肥胖相关的CRC病因学的重要性.
- 需要进一步的研究,以阐明潜在的精确预防这种相互作用背后的机制.
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