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综合功能基因组学识别了DEAF1在氧化应激和肝细胞癌发展中的作用

Linying Huang¹, Xinyuan Yu^1,2, Ziqi Zhang¹

¹Shandong Provincial Key Laboratory of Precision Oncology, Cancer Research Center, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China.

|June 24, 2025

概括

DEAF1基因中的特定遗传变异 (SNP) 与肝细胞癌 (HCC) 风险有关. 这种变异影响基因调节,通过影响细胞氧化还原平衡促进瘤生长,为肝癌提供新的治疗点.

科学领域:

遗传学是一个遗传学.
在瘤学瘤学.
分子生物学分子生物学

背景情况:

肝细胞癌 (HCC) 是一个重大的全球健康挑战,生存率很低.
人们还没有完全理解HCC进展的分子驱动因素.
肝细胞核因子4α (HNF4α) 在HCC中充当瘤抑制剂.

研究的目的:

在HNF4α结合位点内识别与HCC易感相关的功能单核酸多态 (SNP).
研究SNP在HCC发育的分子机制中的作用.

主要方法:

使用更新的整合功能基因组学方法 (TUIFGA) 进行全基因组查,以识别HNF4α结合位多态.
病例控制研究,以评估SNP与与HBV相关的HCC敏感性的关联.
功能性测试以确定DEAF1 rs11246280 SNP对基因表达和细胞过程的影响.

主要成果:

确定了1274个HNF4α结合位多态.
DEAF1 rs11246280 SNP显示与与HBV相关的HCC易感性有显著的关联.
这种SNP破坏了HNF4α结合,增强了DEAF1的表达.
DEAF1通过上调谷氨胺转运体SLC38A3,增加谷氨胺的流入和谷氨的产生来促进HCC,从而减少活性氧物种 (ROS).

结论:

DEAF1 rs11246280 SNP通过改变HNF4α结合和促进DEAF1介导的瘤信号传递,有助于HCC的发展.
在HCC进展过程中,DEAF1在维持氧还原平衡方面发挥着至关重要的作用.
这些发现表明DEAF1是肝癌的潜在治疗点.

关键词:

在DEAF1的基础上,DEAF1 这就是HNF4α.遗传易感性是一种基因易感性.肝细胞癌是肝细胞癌.有活性氧物种的反应性氧物种.

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