癌症表观遗传失调:对基因表达和DNA修复相关途径的影响
Nina Rembiałkowska1, Katarzyna Rekiel2, Piotr Urbanowicz2
1Department of Molecular and Cellular Biology, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland.
International journal of molecular sciences
|July 12, 2025
概括
表观遗传修饰会影响DNA修复和基因组稳定性. 癌症中的异常表观遗传模式损害了DNA修复途径,为耐药癌症提供了新的治疗点.
科学领域:
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
- 癌症生物学 癌症生物学
背景情况:
- 表观遗传修饰,包括DNA甲基化,基因质修饰和非编码RNA,是染色质结构和基因表达的关键调节者.
- 这些修改会影响DNA修复机制,保持基因组的稳定性.
- 在癌症的发展和进展中,越来越多地认识到异常的表观遗传模式.
研究的目的:
- 审查了解表观遗传功能障碍及其对DNA修复的影响的最新进展.
- 探索表观遗传变化如何损害癌症中的关键DNA修复途径.
- 突出针对癌症治疗的表观遗传失调的治疗潜力.
主要方法:
- 关于表观遗传学和DNA修复的最新研究的文献综述.
- 分析DNA甲基化,基因素修饰和非编码RNA在DNA修复中的作用.
- 检查染色体重塑复合物及其在DNA损伤反应中的功能.
- 对表观遗传疗法的纳米粒子介导传递策略的讨论.
主要成果:
- 表观遗传修饰极大地影响DNA修复,影响同源重组 (HR),非同源末端连接 (NHEJ) 和基切割修复 (BER).
- 与癌症相关的表观遗传变化抑制了关键修复基因,并阻碍了对DNA断裂部位的访问,从而损害了修复效率.
- 染色体重塑复合物的突变破坏了核细胞的重新定位,损害了损伤感应和修复机械组装.
- 非编码RNAs有助于在DNA断裂部位的表观遗传沉默,加剧修复缺陷.
结论:
- 表观遗传失调显著损害了癌症中的DNA修复机制.
- 针对DNA修复途径中的表观遗传变化,为开发更有效,更耐药的癌症疗法提供了一个有前途的战略.
- 纳米粒子输送系统有可能在表观遗传癌症治疗中克服药物耐药性.
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