来自大肠的短链脂肪酸对宿主细胞的表观遗传作用
Richard A Stein1, Leise Riber2
1Department of Chemical and Biomolecular Engineering, NYU Tandon School of Engineering, 6 MetroTech Center, Brooklyn, NY 11201, USA.
microLife
|July 13, 2023
概括
肠道微生物群产生类似黄油酸的短链脂肪酸,这些脂肪酸通过表观遗传机制影响宿主基因表达. 了解这种肠道微生物-表观遗传相互作用可以导致新的生物标志物和疗法.
科学领域:
- 微生物学 微生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 胃肠病学 胃肠病学
背景情况:
- 人的肠道拥有庞大的微生物生态系统,肠道微生物群,对健康和疾病至关重要.
- 肠道微生物群的代谢物,特别是短链脂肪酸,显著影响宿主细胞基因表达.
- 黄油酸是一种关键的短链脂肪酸,在结肠细胞能量代谢和表观遗传调节中起着独特的作用.
研究的目的:
- 探索肠道微生物群代谢物,特别是黄油酸,影响真核细胞基因表达的机制.
- 阐明黄油酸在健康和癌症结肠细胞中的作用.
- 突出肠道微生物群-表观遗传界面在开发新生物标志物和治疗方法方面的潜力.
主要方法:
- 审查和综合有关肠道微生物群,短链脂肪酸和表观遗传修饰的现有文献.
- 在不同结肠细胞环境 (光膜与密室) 中分析黄油酸的度依赖作用.
- 检查黄油酸对DNA甲基化,基因素修饰和microRNA活性的影响.
主要成果:
- 短链脂肪酸,包括黄油酸,通过表观遗传途径调节宿主基因表达,如DNA甲基化和基因素修饰.
- 黄油酸作为健康结肠细胞的能量来源,并调节密室中的干细胞增殖.
- 在癌症结肠细胞中,黄油酸作为基因素脱乙酶抑制剂,抑制增殖并促进亡.
结论:
- 肠道微生物群及其代谢物对宿主表观遗传有深远的影响,影响细胞过程.
- 黄油酸在正常和癌症结肠细胞中的双重作用强调了它在胃肠健康和疾病中的重要性.
- 对肠道微生物群-表观遗传轴的进一步研究为诊断和治疗创新提供了有希望的途径.
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