可编程mRNA疗法用于控制单基因和多基因基因表达的表观基因调制在各种疾病中
Charles W O'Donnell1, Jeremiah D Farelli2, Houda Belaghzal2
1Omega Therapeutics, Inc., Cambridge, MA, USA. odonnell@omegatx.com.
Nature communications
|March 14, 2025
概括
科学家们开发了可编程的mRNA疗法,称为表观基因控制器 (EC),通过改变表观基因组来精确控制基因表达. 这些EC提供了持久的,长期的基因调节,为治疗基因失调引起的疾病开辟了新的途径.
科学领域:
- 表观遗传学和基因调控
- 合成生物学 合成生物学
- 治疗开发的治疗方法
背景情况:
- 由表观遗传变化驱动的基因失调是许多疾病的基础.
- 了解表观遗传代码可以实现针对性的基因表达控制.
- 精准医学需要新的策略来解决复杂的遗传疾病.
研究的目的:
- 为设计可编程mRNA疗法,表观基因控制器 (EC) 提供一个模块化平台.
- 通过指导表观遗传修饰来证明ECs通过指导表观遗传修饰来控制基因表达的能力.
- 探索EC作为与基因失调相关的疾病的治疗方式.
主要方法:
- 基于mRNA疗法的模块化表观基因控制器 (EC) 的设计和表征.
- 利用自然细胞机制进行指导性表观遗传变化.
- 在体内使用小鼠模型测试炎症和癌症相关基因集群的EC疗效.
主要成果:
- 在雌性小鼠中,ECs在一次剂量后显示出持久的基因表达调制 (数周至数月).
- 一种特定的EC成功抑制了与癌症和炎症相关的CXCL1-8基因群.
- ECs精确地针对NF-kB信号,在急性肺炎模型中显著减少中性粒细胞迁移.
结论:
- 表观基因组控制器平台为表观基因组调制提供了一种多功能方法.
- 基因表达提供了一个强大的工具,可以精确,持久地控制基因表达.
- 这项技术扩大了广泛疾病的治疗前沿,包括那些具有"不可抗药"目标的疾病.
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