表观遗传是指在核苷酸序列不变的情况下发生的基因表达可遗传的改变。表观遗传调控机制多样,其中DNA甲基化、组蛋白修饰和非编码RNA调控研究较深入。表观遗传调控与多种人类疾病相关,在视网膜变性疾病发生或发展过程中,DNA甲基化、组蛋白乙酰化和非编码RNA调控等多种表观遗传调控方式发生改变。DNA甲基化是视网膜变性的重要调控方式之一,异常的DNA甲基化发生在视网膜色素变性(RP)、年龄相关性黄斑变性(AMD)、炎症及氧化应激等病变过程;组蛋白乙酰化与RP、糖尿病视网膜病变(DR)、青光眼、视网膜神经缺血性损伤等病变相关;非编码RNA与RP、AMD、病理性血管生成、DR等病变相关。本文就表观遗传调控在视网膜变性疾病中的应用做一综述。
Epigenetics pertains to heritable alterations in gene expression when the nucleotide sequence remains unchanged.Epigenetic regulation mechanisms are diverse, among which DNA methylation, histone modification and non-coding RNA (ncRNA) regulation have been studied in depth.Epigenetic regulation is associated with a variety of human diseases.In the occurrence and development of retinal degenerative diseases, many epigenetic regulation processes such as DNA methylation, histone acetylation and ncRNA regulation have changed.DNA methylation is one of the important regulation processes in retinal degeneration.Aberrant DNA methylation patterns are associated with retinitis pigmentosa (RP), age-related macular degeneration (AMD), inflammation and oxidative stress.Histone acetylation is associated with RP, diabetic retinopathy (DR), glaucoma and retinal nerve ischemic injury.NcRNA is associated with RP, AMD, pathological angiogenesis, and DR.In this article, the application of epigenetic regulation in retinal degeneration was reviewed.
张华,庞继景. 表观遗传调控在视网膜变性疾病中的应用[J]. 中华实验眼科杂志,2022,40(10):981-985.
DOI:10.3760/cma.j.cn115989-20191015-00442版权归中华医学会所有。
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