基因调节中的性别差异及其对癌症发病率的影响
Camila M Lopes-Ramos1,2,3, Rebekka Burkholz4, Marouen Ben Guebila1
1Department of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA.
bioRxiv : the preprint server for biology
|December 3, 2025
概括
正常组织表现出性别偏差的基因调节,影响癌症的发展. 这项研究揭示了男性和女性基因向的差异如何导致癌症发病率差异,为性别特定的癌症预防策略提供了见解.
科学领域:
- 基因组学就是基因组学.
- 癌症流行病学 癌症流行病学
- 分子生物学分子生物学
背景情况:
- 在不同类型的癌症中,癌症发病率存在显著的性别差异.
- 虽然生活方式和荷尔蒙因素有关,但性别之间的正常组织中基因调节差异的作用仍未得到充分探索.
- 了解这些分子差异对于解释癌症流行病学和开发有针对性的预防至关重要.
研究的目的:
- 为了研究正常人组织中的性别特异基因调控网络差异.
- 确定男性和女性之间癌症基因的不同调节如何导致癌症发病率差异.
- 探索癌症风险中的性别差异的分子基础,并确定性别意识的预防目标.
主要方法:
- 使用GTEx数据集对29个正常组织中的8,279个基因调节网络进行分析.
- 男性和女性网络的比较,重点是转录因子和癌症基因相互作用 (COSMIC癌症基因普查).
- 利用网络中心性的措施来识别性别偏见的监管模式和路径丰富.
主要成果:
- 癌症基因在正常组织中表现出男性和女性之间的转录因子的差异向.
- 性倾向的癌症基因在X染色体上过度表现,瘤抑制基因在女性中更有针对性.
- 关键的癌症通路 (WNT,NOTCH,p53) 呈现出性别差异化向,与组织特异性癌症发病率相关.
- 性倾向的转录因子通常含有性激素反应元素.
结论:
- 正常组织具有涉及瘤发生的性别偏差基因调节.
- 这些调控差异为癌症发病率中观察到的性别差异提供了分子解释.
- 这些发现突出了针对性别的癌症预防策略和治疗目标的潜力.
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