沉默TET1表达改变了表观基因组格局,并放大了气道上皮细胞对过敏原的转录基因反应
Anthony P Brown1, Sreeja Parameswaran2,3,4, Lucy Cai1
1California National Primate Research Center, University of California Davis, Davis, CA 95616, United States.
Environmental epigenetics
|May 22, 2025
概括
十一转位甲基细胞二氧化酶1 (TET1) 通过调节气道细胞中的基因表达来保护抗喘. TET1损失和过敏原暴露同样影响染色质的可访问性,影响与喘相关的途径.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 十-十一转位甲基细胞二氧化酶1 (TET1) 已知在室内灰尘虫 (HDM) 引起的过敏气道炎症中起着保护作用.
- TET1调节了参与人类支气管上皮细胞 (HBEC) 喘病原发生的基因.
- 在这种情况下,TET1控制基因表达的精确分子机制尚不清楚.
研究的目的:
- 阐明TET1在HDM引起的过敏气道炎症中的调节机制.
- 为了研究TET1如何影响基因表达,DNA甲基化,染色质可访问性和HBECs中的基因组修饰在HDM暴露时.
主要方法:
- 多组学分析包括mRNA表达,DNA甲基化和染色体可访问性分析.
- 在HBEC中降低TET1,然后进行HDM提取物治疗.
- 转录因子丰富分析和H3K27ac水平评估.
主要成果:
- 降低TET1和HDM治疗诱导了类似的转录基因变化,富含了喘相关的基因和途径.
- 这两种情况都导致共享基因组位置的染色质可访问性降低,可能涉及CTCF和C / EBP结合.
- TET1损失影响了增强剂活性 (H3K27ac),并导致非可访问区域的DNA甲基化变化.
结论:
- TET1采用不同的机制来调节气道上皮细胞中不同基因组区域的基因表达.
- TET1限制了对过敏原的转录基因反应,这表明它在抗喘发展方面起着保护作用.
关键词:
ATAC-seqq 的使用情况.在RNA-seqqq.在TET1上.喘 喘 是一种染色质可访问性 染色质可访问性功能性基因组学 功能性基因组学基因调节 基因调节 基因调节甲基化处理的方法转录因子的转录因子全基因组二硫酸盐测序更多相关视频
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