Deregulation of TWIST1 expression by promoter methylation in gastrointestinal cancers

IF 4.4 2区 生物学 Q1 Agricultural and Biological Sciences Saudi Journal of Biological Sciences Pub Date : 2024-08-01 DOI:10.1016/j.sjbs.2023.103842
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Abstract

TWIST1, a basic helix-loop-helix transcription factor with versatile roles in cancer, is frequently deregulated in cancers, through established pathway perturbations. However. the significance of TWIST1 methylation in the deregulation of TWIST1 in gastrointestinal cancers is not fully clear. This study hypothesized that TWIST1 promoter methylation deregulates TWIST1 expression independent of established deregulators such as the WNT, TGFB, NOTCH and miRNA pathways. To prove this hypothesis, colon, gastric and rectal cancer genomic data comprising gene expression, DNA methylation, and miRNA data were retrieved from the Cancer Genome Atlas cohorts which are publicly available in cancer genomic databases, the Genome Data Commons and the cBioportal.org. About 217 variables comprising expression levels of genes of the WNT, TGFB, NOTCH and miRNA signalling pathways, as well as the beta values of 17 TWIST1 methylation loci were subjected to Principal Component Regression Analysis, and then standard Linear Regression Analysis. The results showed that TWIST1 methylation is a predictor of TWIST1 expression in the gastrointestinal cancers, independent of WNT, TGFB, and NOTCH signalling and miRNA deregulation. The results also showed that different TWIST1 methylation loci may deregulate TWIST1 expression in different cancer types. The inference that can be drawn from this study is that TWIST1 DNA methylation is an important TWIST1 deregulation mechanism in colon, rectal and gastric cancers.

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胃肠道癌症启动子甲基化对 TWIST1 表达的失调
TWIST1 是一种基本螺旋-环-螺旋转录因子,在癌症中具有多种作用。然而,TWIST1 甲基化在胃肠道癌症 TWIST1 失调中的意义尚不完全清楚。本研究假设,TWIST1 启动子甲基化会独立于 WNT、TGFB、NOTCH 和 miRNA 通路等既有的调控因子,解除对 TWIST1 表达的调控。为了证明这一假设,研究人员从癌症基因组图谱队列中检索了结肠癌、胃癌和直肠癌的基因组数据,包括基因表达、DNA甲基化和 miRNA 数据,这些数据可在癌症基因组数据库、基因组数据公共平台和 cBioportal.org 上公开获取。对包括 WNT、TGFB、NOTCH 和 miRNA 信号通路基因表达水平在内的约 217 个变量以及 17 个 TWIST1 甲基化位点的 beta 值进行了主成分回归分析,然后进行了标准线性回归分析。结果表明,TWIST1甲基化是胃肠道癌症中TWIST1表达的预测因子,与WNT、TGFB和NOTCH信号以及miRNA失调无关。研究结果还表明,在不同癌症类型中,不同的 TWIST1 甲基化位点可能会降低 TWIST1 的表达。本研究得出的推论是,TWIST1 DNA 甲基化是结肠癌、直肠癌和胃癌中 TWIST1 的重要失调机制。
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来源期刊
CiteScore
9.30
自引率
4.50%
发文量
551
审稿时长
34 days
期刊介绍: Saudi Journal of Biological Sciences is an English language, peer-reviewed scholarly publication in the area of biological sciences. Saudi Journal of Biological Sciences publishes original papers, reviews and short communications on, but not limited to: • Biology, Ecology and Ecosystems, Environmental and Biodiversity • Conservation • Microbiology • Physiology • Genetics and Epidemiology Saudi Journal of Biological Sciences is the official publication of the Saudi Society for Biological Sciences and is published by King Saud University in collaboration with Elsevier and is edited by an international group of eminent researchers.
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