肝脏微生物组与表观基因组之间的交叉交谈在患有与代谢功能障碍相关的脂肪性肝病的患者中
Carlos Jose Pirola1, Adrian Salatino2, Tomas Fernández Gianotti3
1Systems Biology of Complex Diseases, Translational Health Research Center (CENITRES), Maimónides University, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina; Faculty of Health Science, Maimónides University, Buenos Aires, Argentina.
EBioMedicine
|February 6, 2024
概括
肝脏表观基因组,包括酸转移酶 (HAT) 活性和DNA基甲基化,在代谢功能障碍相关的脂肪性肝病 (MASLD) 中受到肝脏微生物组的影响. 这些表观遗传变化与疾病的严重程度和特定细菌的丰度相关.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 微生物组研究 微生物组研究
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 与代谢功能障碍相关的脂肪性肝病 (MASLD) 的发病过程复杂,涉及多个生物层面.
- 这项研究调查了MASLD.肝脏微生物组与表观遗传修饰之间的相互作用.
研究的目的:
- 探索肝脏微生物DNA组成和MASLD中的表观遗传因素之间的关系.
- 评估表观遗传标记和肝病严重程度之间的相关性.
主要方法:
- 16S rRNA基因测序用于分析116名患有MASLD的个体的肝脏微生物DNA.
- 进行了测试,以测量肝核提取物中总基因素脱乙酶 (HDAC) 和乙转移酶 (HAT) 的活性.
- 在肝脏DNA中量化了全球5-基甲基细胞素 (5-hmC) 水平.
主要成果:
- 患有MASLD的患者表现出肝脏HAT总活性显著增加,与组织学肥胖症和疾病严重程度相关.
- 肝脏HAT和HDAC活动与特定肝脏细菌的丰富性有关.
- 全球肝脏5-hmC水平与细菌类的丰富性有差异性相关性,包括Bacteroidetes,Gammaproteobacteria,Acidobacteria和Actinobacteria.
结论:
- 肝脏表观基因组,包括乙化平衡和DNA基甲基化,可以通过MASLD中的微生物信号来调节.
- 这些发现表明,一种潜在的机制将肝脏微生物组与MASLD病变发生过程中的表观遗传变化联系起来.
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