表观遗传对癌症的影响

3区 生物学 Q1 Biochemistry, Genetics and Molecular Biology
Songhua Quan, Hao Huang
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引用次数: 0

摘要

表观遗传学改变了我们对癌症的认识,揭示了不改变 DNA 本身的基因活动变化是如何引发和发展癌症的。这些变化包括 DNA 甲基化、组蛋白结构和非编码 RNA 活性的调整。例如,DNA 甲基化可使通常具有抗癌保护作用的基因失活,从而导致更广泛的基因组不稳定性。组蛋白修饰可改变 DNA 的紧密程度,影响哪些基因活跃或沉默;而非编码 RNA 可干扰指导蛋白质生产的信息,影响癌症相关过程。基因突变是永久性的、不可逆的,而表观遗传变化则不同,它为治疗干预提供了一个可塑的目标,允许对基因表达模式进行潜在的可逆调整。这种灵活性对于复杂的癌症治疗至关重要,因为静态的基因解决方案可能是不够的。此外,表观遗传学弥补了癌症遗传倾向和环境影响之间的差距,为了解生活方式因素和外部暴露如何影响癌症风险和进展提供了一个全面的框架。将表观遗传学纳入癌症研究,不仅能加深我们对癌症的了解,还能开辟创新的干预途径,而这些途径在以前以基因为重点的传统研究中是未曾探索过的。先进的测序和精确的表观遗传修饰等技术正在为早期癌症检测和更加个性化的治疗方法铺平道路,凸显了表观遗传学在现代癌症治疗中的关键作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Epigenetic contribution to cancer.

Epigenetics has transformed our understanding of cancer by revealing how changes in gene activity, which do not alter the DNA itself, can initiate and progress the disease. These changes include adjustments in DNA methylation, histone configuration, and non-coding RNA activity. For instance, DNA methylation can inactivate genes that typically protect against cancer, leading to broader genomic instability. Histone modifications can alter how tightly DNA is wound, influencing which genes are active or silenced; while non-coding RNAs can interfere with the messages that direct protein production, impacting cancer-related processes. Unlike genetic mutations, which are permanent and irreversible, epigenetic changes provide a malleable target for therapeutic intervention, allowing potentially reversible adjustments to gene expression patterns. This flexibility is essential in the complex landscape of cancer where static genetic solutions may be insufficient. Additionally, epigenetics bridges the gap between genetic predispositions and environmental influences on cancer, offering a comprehensive framework for understanding how lifestyle factors and external exposures impact cancer risk and progression. The integration of epigenetics into cancer research not only enhances our understanding of the disease but also opens innovative avenues for intervention that were previously unexplored in traditional genetic-focused studies. Technologies like advanced sequencing and precise epigenetic modification are paving the way for early cancer detection and more personalized treatment approaches, highlighting the critical role of epigenetics in modern cancer care.

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来源期刊
International review of cell and molecular biology
International review of cell and molecular biology BIOCHEMISTRY & MOLECULAR BIOLOGY-CELL BIOLOGY
CiteScore
7.70
自引率
0.00%
发文量
67
审稿时长
>12 weeks
期刊介绍: International Review of Cell and Molecular Biology presents current advances and comprehensive reviews in cell biology-both plant and animal. Articles address structure and control of gene expression, nucleocytoplasmic interactions, control of cell development and differentiation, and cell transformation and growth. Authored by some of the foremost scientists in the field, each volume provides up-to-date information and directions for future research.
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