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低度的塞沃弗劳兰降低了慢性阻塞性肺病 (COPD) 相关基因促进器的DNA甲基化,在COPD大鼠中

Chuanxin Yang¹, Libing Deng¹, Fang Bao¹

¹Department of Anesthesiology, Qingpu Branch of Zhongshan, Fudan University, Shanghai, China.

|November 27, 2023

概括

低度的黄素可能通过低甲基化膜II型 (ATII) 细胞中的特定基因,从表观遗传学上受益慢性阻塞性肺病 (COPD). 高度显示相反的效果,表明COPD治疗中吸入麻醉剂的剂量依赖表观遗传机制.

科学领域:

肺部医学肺部医学
表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.
麻醉学麻醉学

背景情况:

慢性阻塞性肺病 (COPD) 是一种复杂的呼吸系统疾病,表观遗传机制不明,受吸入麻醉剂的影响.
塞沃兰在COPD中的作用是有争议的,其影响因度而异,其潜在的表观遗传影响在很大程度上仍未知.

研究的目的:

为了研究sevoflurane对COPD相关基因甲基化的剂量依赖性表观遗传效应,在膜II型 (ATII) 细胞中.
阐明DNA甲基转移酶1 (DNMT1) 和REC8介质重组蛋白 (REC8) 在COPD中sevoflurane诱导的表观遗传修饰中的作用.

主要方法:

建立由脂聚糖 (LPS) 诱导的慢性慢性肺炎大鼠模型和ATII细胞的隔离.
对关键COPD相关基因 (Sftpa1,Napsa,Ca2,Sfta2,Lamp3,Wif1,Pgc,Etv5) 的促进子区域中的DNA甲基化模式的分析.
评估DNMT1和REC8对目标基因促进体的结合以及与转录活性的相关性.

主要成果:

低度 (0.5%) 的血清氨酸诱导了ATII细胞中六种COPD相关基因促进者的低甲基化,增加了它们的转录活性.
高度 (2%) 的赛沃氨酸导致相同基因促进体的高甲基化,降低了转录活性.
对于这些甲基化变化来说,DNMT1的结合是至关重要的,而REC8在低度的血清治疗细胞中,特别结合促进体,与DNMT1.1具有积极的相关性.

结论:

在COPD模型中,sevoflurane对ATII细胞表现出剂量依赖的表观遗传效应,低度可能通过低甲基化提供治疗效益.
这些发现突出了一个涉及DNMT1和REC8的新型表观遗传机制,为COPD的发病和麻醉治疗提供了洞察力.

关键词:

慢性慢性肺炎是一种慢性慢性肺炎,COPD是一种慢性肺炎.通过DNA甲基化.在 DNMT1 中,DNMT1 是一个字符串.在 REC8 中使用.七伏氨酸是什么意思

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