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首页> 外文期刊>Neuromolecular medicine >RNA Sequencing and Pathway Analysis Identify Important Pathways Involved in Hypertrichosis and Intellectual Disability in Patients with Wiedemann–Steiner Syndrome
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RNA Sequencing and Pathway Analysis Identify Important Pathways Involved in Hypertrichosis and Intellectual Disability in Patients with Wiedemann–Steiner Syndrome

机译:RNA测序和途径分析鉴定了Wiedemann-Steiner综合征患者的高强化病和智力残疾涉及的重要途径

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摘要

A growing number of histone modifiers are involved in human neurodevelopmental disorders, suggesting that proper regulation of chromatin state is essential for the development of the central nervous system. Among them, heterozygous de novo variants in KMT2A , a gene coding for histone methyltransferase, have been associated with Wiedemann–Steiner syndrome (WSS), a rare developmental disorder mainly characterized by intellectual disability (ID) and hypertrichosis. As KMT2A is known to regulate the expression of multiple target genes through methylation of lysine 4 of histone 3 (H3K4me), we sought to investigate the transcriptomic consequences of KMT2A variants involved in WSS. Using fibroblasts from four WSS patients harboring loss-of-function KMT2A variants, we performed RNA sequencing and identified a number of genes for which transcription was altered in KMT2A -mutated cells compared to the control ones. Strikingly, analysis of the pathways and biological functions significantly deregulated between patients with WSS and healthy individuals revealed a number of processes predicted to be altered that are relevant for hypertrichosis and intellectual disability, the cardinal signs of this disease.
机译:越来越多的组蛋白改性剂涉及人类神经发育障碍,表明染色质状态的适当调节对于中枢神经系统的发展至关重要。其中,KMT2A的杂合子DE Novo变体是对组蛋白甲基转移酶的基因编码,已与Wiedemann-Steiner综合征(WSS)有关,这是一种罕见的发育障碍,主要是智力残疾(ID)和高血压症。众所周知,随着KMT2A,通过组蛋白3(H3K4ME)的赖氨酸4(H3K4ME)的甲基化来调节多个靶基因的表达,我们寻求研究涉及WSS的KMT2A变体的转录组后果。使用来自四个WSS患者的成纤维细胞患有功能丧失的KMT2A变体,我们进行了RNA测序,并确定了与对照细胞相比,在KMT2A的转录改变转录的许多基因。令人惊讶的是,WSS和健康个体患者之间的途径和生物学功能的分析显着妨碍了许多预测改变的过程,这些过程与高强化和智力残疾,这种疾病的基本迹象。

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