向eRNA产生超级增强剂调节TNFα表达并缓解老鼠和患者衍生的免疫细胞中的慢性炎症
Minjeong Cho1, Su Min Kim1, Jiyeon Lee1
1Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|July 22, 2025
概括
向增强型RNAs (eRNAs) 提供了一种新的方法,通过减少瘤亡因子α (TNFα) 生产来对抗慢性炎症. 这项研究表明,eRNA抑制在临床前模型中有效缓解炎症疾病症状.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 慢性炎症性疾病涉及免疫细胞失调和高的促炎分子,如瘤死因子α (TNFα).
- 超级增强剂 (SE) 和它们的增强剂RNA (eRNA) 是具有治疗潜力的基因表达的关键调节剂.
- 向eRNA是一种超越传统的向蛋白质治疗炎症的新策略.
研究的目的:
- 研究准TNFα调节eRNAs的治疗潜力,以减少慢性炎症.
- 探索eRNA作为炎症疾病的可用药物点.
主要方法:
- 产生缺乏Tnfα调节增强剂区域的TNF-9淘汰赛 (KO) 小鼠.
- 综合性表观基因组和转录基因组分析以确定额外的eRNA目标.
- 在老鼠巨细胞和人类细胞中,反感性寡核酸 (ASO) 介导的TNF-9 eRNA的击倒.
主要成果:
- TNF-9 KO小鼠显示Tnfα水平显著降低,在类风湿性关节炎 (RA),牛皮和败血症模型中改善了疾病结果.
- 表观基因组分析发现了新的LPS-响应的eRNA产生增强剂.
- 通过ASO介导的eRNA倒置降低了Tnfα的表达,并减轻了小鼠和人类细胞的RA症状.
结论:
- 准TNFα调节的eRNA是一种可行的治疗策略,用于慢性炎症疾病.
- 针对eRNA的干预措施在临床前模型中表现出有效性,提供了一种新的治疗途径.
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