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ATAC-seq揭示了染色质可访问性和与角膜纤维化相关的新型动机

Swati Sood¹, Rajnish Kumar¹, Nishant R Sinha²

¹Harry S. Truman Memorial Veterans' Hospital, Columbia, MO, USA; Departments of Veterinary Medicine & Surgery and Pathobiology and Integrative Biomedical Sciences, University of Missouri, Columbia, MO, USA.

Experimental eye research

|December 26, 2025

概括

角膜纤维化涉及染色质可访问性的显著变化,揭示了KLF17,NRF2和ETV6作为关键调节剂. 这种表观基因组重编程为视力障碍提供了新的治疗点.

科学领域:

表观遗传学和分子生物学
眼科医生眼科眼科
基因组学就是基因组学.

背景情况:

角膜纤维化通过减少角膜透明度导致视力丧失.
动态色素可访问性对于调节纤维化相关基因至关重要.
了解这些表观遗传变化可以确定新的治疗点.

研究的目的:

为了研究子中性诱导的角膜纤维化症的表观基因组景观.
确定调节纤维化过程的关键转录因子.
探索角膜纤维化潜在的治疗点.

主要方法:

在子的角膜上进行了全基因组染色质可访问性分析 (ATAC-seq).
数据分析包括峰值调用 (MACS2),注释 (ChIPseeker),图案丰富 (HOMER) 和差异性可访问性分析 (csaw, edgeR).
路径丰富分析 (clusterProfiler) 和qRT-PCR被用于验证发现.

主要成果:

在纤维化角膜中发现了5890个不同可访问的区域.
与原始角膜相比,纤维化角膜中的促进器区域的染色质凝聚增加.
确定了KLF17,NRF2和ETV6作为角膜纤维化潜在的关键调节剂.

结论:

性诱导的角膜纤维化涉及广泛的表观基因组重编程.
像KLF17,NRF2和ETV6这样的特定转录因子起着关键的作用.
表观遗传修饰为角膜纤维化治疗干预提供了有希望的途径.

关键词:

ATAC-Seqq的使用情况.染色体的可访问性染色体的可访问性角膜纤维化角膜纤维化在 ETV6 上播放.表观遗传重编程是一种表观遗传重编程.在KLF17KLF17 图案图案图案图案图案这就是NRF2的NRF2.

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