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功能性TET2基因多态性增加了中国儿童神经母细胞瘤的风险

Lei Lin¹, Bo Wang², Xinxin Zhang¹

¹Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou, Guangdong, China.

|November 28, 2023

概括

特定的TET2基因变异显著增加神经母细胞瘤风险. 这些多态性还减少了TET2表达,增加了PPA2表达,与神经母细胞瘤患者的更高风险和更差的预后相关.

科学领域:

遗传学遗传学是一种遗传学.
在瘤学瘤学.
分子生物学分子生物学

背景情况:

5甲基细胞氨酸 (m5C) 是一种关键的RNA修饰.
TET2作为m5C的脱甲基酶,被认为是一种瘤抑制剂.
TET2基因多态化对神经母细胞瘤发展的具体影响仍未得到研究.

研究的目的:

调查TET2基因多态和神经母细胞瘤易感性之间的关联.
探索这些多态性对TET2基因表达的影响及其与神经母细胞瘤风险和预后的相关性.
检查TET2多态和附近基因的表达之间的关系,例如无机酸酶2 (PPA2).

主要方法:

使用TaqMan方法对402名神经母细胞瘤患者和473名对照患者的TET2基因多态 (rs10007915和rs7670522) 的基因定型.
多变量逻辑回归分析,以评估多形态对神经母细胞瘤易感性的影响.
从基因型-组织表达 (GTEx) 数据库和R2平台分析基因表达数据.
非参数测试和卡普兰-梅尔分析,以评估基因表达与神经母细胞瘤风险和预后的相关性.

主要成果:

TET2多态 rs10007915 (G>C) 和 rs7670522 (A>C),以及组合的风险基因型,显著提高神经母细胞瘤风险.
这些特定的TET2多态性与减少的TET2mRNA表达有关.
较低的TET2表达与高风险神经母细胞瘤,MYCN放大和不良预后相关.
TET2多态 rs10007915和rs7670522与增加的PPA2mRNA表达有关.
增加PPA2表达也与高风险的神经母细胞瘤,MYCN放大和预后不佳有关.

结论:

TET2基因多态 rs10007915 G>C和rs7670522 A>C是神经母细胞瘤易感性的重要危险因素.
这些多态体通过改变TET2和PPA2基因表达来影响神经母细胞瘤,影响疾病风险和预后.
需要进一步的研究来阐明这些关联背后的精确分子机制.

关键词:

在TET2的基础上.m5C 修改的修改神经母细胞瘤的神经母细胞瘤多形态主义的多态主义.易感性易感性易感性

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