相关实验视频

Updated: Jun 13, 2025

Detection of Retrotransposition Activity of Hot LINE-1s by Long-Distance Inverse PCR

Detection of Retrotransposition Activity of Hot LINE-1s by Long-Distance Inverse PCR

Published on: July 27, 2019

对LTR和LINE1可移植元素的表达定义了非典型的形/形瘤亚型

Martin V Hamann¹, Shweta Godbole², Maisha Adiba¹

¹Leibniz Institute of Virology (LIV), Hamburg, Germany.

bioRxiv : the preprint server for biology

|June 4, 2025

概括

可转移元素 (TE) 转录档案在非典型的形形瘤 (ATRTs) 中是独一无二的,有助于亚型分类. ATRT-MYC亚型表现出明显的TE活性,提供潜在的治疗点.

科学领域:

神经瘤学神经瘤学
基因组学就是基因组学.
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:

非典型的形形形瘤 (ATRTs) 是儿童中枢神经系统的侵袭性癌症.
三种主要的ATRT亚型 (MYC,SHH,TYR) 通过分子特征来定义,指导治疗.
转移性元素 (TE) 转录与癌症有关,这是由于表观遗传的放松调节.

研究的目的:

研究可移植元素 (TE) 转录在ATRT开发和亚型分类中的作用.
在人类样本中分析不同ATRT亚型的LINE1和LTR元素转录特征.

主要方法:

在初级人类ATRT样本中对LINE1和LTR元素的转录活性进行了全面分析.
基于TE转录档案的样本分层.
识别可预测ATRT亚型的差异转录的TE.

主要成果:

TE转录档案是ATRT亚型中唯一的,使样本分层化成为可能.
ATRT-MYC亚型表现出明显的TE活动特征,LINE1和ERVL-MaLR转录水平降低.
与其他亚型相比,ATRT-MYC瘤在LTR和LINE1位点中显示出明显较少的双向促进体活性.

结论:

TE转录档案可以作为ATRT分类的分子标记.
在ATRT-MYC中独特的TE活性表明了针对性疗法 (包括免疫疗法) 的潜在漏洞.

关键词:

DNA甲基化数据数据第1行一线一些LTR元素非典型的甲状腺/状腺瘤 (ATRTs)转录组 (transcriptome) 是一个转录组.可转移的元素可以转移.

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RNA Next-Generation Sequencing and a Bioinformatics Pipeline to Identify Expressed LINE-1s at the Locus-Specific Level

RNA Next-Generation Sequencing and a Bioinformatics Pipeline to Identify Expressed LINE-1s at the Locus-Specific Level

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Analysis of LINE-1 Retrotransposition at the Single Nucleus Level

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