精确表观遗传疗法在治疗基因组印记疾病方面的进展和挑战
Ying Lv1,2, Mingyan Li1,2, Chai Ji1,2
1Department of Child Health Care, National Clinical Research Center for Child and Adolescents' Health, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Translational pediatrics
|February 9, 2026
概括
表观基因组编辑通过直接纠正表观基因缺陷,为治疗基因组印记障碍提供了一种革命性的方法. 编辑器设计和传递系统的进步显示出未来疗法的前景,解决遗传医学中尚未满足的需求.
科学领域:
- 表观遗传学和基因疗法
- 基因组医学是基因组医学.
- 分子病理学分子病理学
背景情况:
- 基因组印记障碍是由于表观遗传错误导致基因表达失调的原始基因表达的结果.
- 目前针对这些疾病的治疗方法是症状性的,不能纠正潜在的表观遗传失调.
- 表观基因组编辑提供了一种新的治疗策略,可以直接解决这些疾病的分子基础.
研究的目的:
- 在过去十年中,审查了用于治疗基因组印记障碍的表观基因组编辑的进展.
- 突出编辑器技术和in vivo传递系统的进步.
- 讨论表观基因组编辑的潜力,以彻底改变这些遗传疾病的治疗模式.
主要方法:
- 审查最近在表观基因组编辑器设计的突破,包括短暂的"碰跑"系统.
- 检查新型传递平台,如工程性腺相关病毒 (AAV) 载体和脂质纳米粒子 (LNP).
- 在安吉尔曼综合征和普拉德-威利综合征模型中分析临床前数据.
主要成果:
- 开发下一代表观基因组编辑器,在短暂表达后实现持久的表观基因记忆.
- 交付平台的进展,增强中枢神经系统 (CNS) 热流和肝外向.
- 在临床前模型中通过有针对性的表观遗传重写成功地重新激活沉默的等位基因和拯救疾病表型.
结论:
- 表观基因组编辑是一种转化性治疗策略,用于基因组印记障碍.
- 编辑器和交付系统的联合进展显示出显著的临床前前途.
- 需要进一步的研究来解决临床翻译的长期耐用性和非目标安全性方面的挑战.
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