由JMJD2B进行的H3K9me3脱甲基化受皮尔芬尼的调节,从而改善了NASH
J Samael Rodriguez-Sanabria1,2, Rebeca Rosas-Campos1, Ángel Vázquez-Esqueda1
1Department of Molecular Biology and Genomics, Institute for Molecular Biology in Medicine and Gene Therapy, Health Sciences University Center, University of Guadalajara, 44340, Guadalajara, Jalisco, Mexico.
Scientific reports
|October 21, 2024
概括
皮尔芬尼 (PFD) 通过表观遗传调节JMJD2B,减少肝脂积累和炎症,减少非酒精性脂肪肝炎 (NASH). 这项研究揭示了PFD.
科学领域:
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 肝病学 肝病学是一种肝病学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 非酒精性脂肪肝炎 (NASH) 涉及肝脏脂肪的积累和炎症.
- JMJD2B 基因组脱甲基酶的上调与NASH进展相关.
- 皮尔芬尼 (PFD) 具有抗炎和抗氧化特性,对NASH有益.
研究的目的:
- 在实验性NASH中调查Pirfenidone的表观遗传机制.
- 为了探索PFD对JMJD2B和NASH中的基因组修饰的作用.
主要方法:
- 在C57BL/6J小鼠中,高脂肪/高碳水化合物饮食诱导的NASH模型.
- 皮尔费尼治疗,生化和组织学分析,转录组学,西斑和ChIP测定.
- 在体外HepG2细胞脂毒性模型和分子对接研究.
主要成果:
- PFD治疗改善了NASH症状,包括减轻体重增加,内脏脂肪,肝硬化和炎症.
- PFD调节了JMJD2B表达和恢复了压制性组织蛋白标记 (H3K9me3).
- PFD增加了肝脏H3K9me2和H3K9me3在目标基因促进者的丰富,减少了体外脂质积累.
结论:
- 皮尔芬尼通过修改JMJD2B活性,起到表观遗传调节者的作用.
- PFD的表观遗传效应有助于减少NASH特征.
- 通过表观遗传调制,PFD证明了NASH的治疗潜力.
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