在急性损伤中,表观遗传重编程驱动成功和失败的修复
Yoshiharu Muto1, Eryn E Dixon1, Yasuhiro Yoshimura1
1Division of Nephrology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA.
bioRxiv : the preprint server for biology
|February 8, 2024
概括
这项研究揭示了导致急性损伤 (AKI) 过渡到慢性病 (CKD) 的表观遗传变化. 转录因子CREB5被确定为成功和失败的脏修复过程中的关键调节者.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 分子生物学分子生物学
背景情况:
- 急性损伤 (AKI) 可以通过不完整的修复过程导致慢性病 (CKD).
- 了解AKI转变为CKD的表观遗传机制对于治疗开发至关重要.
研究的目的:
- 调查表观遗传重编程驱动 AKI 到 CKD 的过渡.
- 为了创建一个全面的单核多原子图谱的老鼠AKI时间课程.
- 确定参与成功和失败脏修复的关键调节者.
主要方法:
- 一个单核多原子图谱 (~28万个核) 的生成,包括从一只老鼠的转录组和表观基因组 AKI时间课程.
- 从人类AKI样本中获取单核多原子数据.
- 用于验证NF-kB结合位点的全基因组识别.
- 调节回归分析的应用,以确定关键的调节因素.
主要成果:
- 揭示了AKI期间基因调节格局的细胞特异性动态变化,包括促炎途径的激活.
- 确定了转录因子CREB5作为管道修复成功和失败的关键调节者.
- 证明CREB5在损伤后促进近端管细胞的增殖.
- 通过对人类AKI样本和NF-kB结合部位的分析验证了这些发现.
结论:
- 跨物种多原子方法提供了对AKI细胞状态的基本理解.
- 这项工作阐明了AKI到CKD过渡中的表观遗传重编程,突出了CREB5作为潜在的治疗点.
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