新型 ACE2 mRNA 转录本的特征:替代剪接在 SARS-CoV-2 感染中的潜在作用

IF 2.6 3区 生物学 Q2 GENETICS & HEREDITY
Gene Pub Date : 2024-11-15 DOI:10.1016/j.gene.2024.149092
Panagiotis G. Adamopoulos, Natalia Bartzoka, Panagiotis Tsiakanikas, Andreas Scorilas
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引用次数: 0

摘要

人类血管紧张素转换酶 2(ACE2)基因编码一种 I 型跨膜蛋白,它与血管紧张素 I 转换酶(ACE)同源,属于二肽羧肽酶的血管紧张素转换酶家族。正如 COVID-19 大流行所强调的那样,ACE2 不仅对肾素-血管紧张素-醛固酮系统(RAAS)至关重要,而且与代表病毒主要受体的 SARS-CoV-2 棘蛋白有很强的亲和力。鉴于 ACE2 在 COVID-19 中的重要性,尤其是在癌症患者中的重要性,本研究旨在通过设计和实施一种定制的靶向长读数测序方法,探索 ACE2 在人类癌症和非癌症细胞系中的转录情况。通过对海量并行测序数据进行生物信息学分析,发现了新型 ACE2 mRNA 剪接变体(ACE2 sv.7-sv.12),这些变体显示了以前未曾描述过的外显子跳变事件以及 5' 和/或 3' 替代剪接位点。对测序数据进行解复用阐明了已确定的剪接变体在多种人类细胞类型中的不同表达谱,而硅学分析表明,一些新型剪接变体可能产生具有改变功能的截短 ACE2 异构体,从而可能影响它们与 SARS-CoV-2 穗蛋白的相互作用。总之,我们的研究揭示了癌细胞株中 ACE2 基因复杂的替代剪接情况,揭示了可能对癌症患者 SARS-CoV-2 易感性有重大影响的新型剪接变体。这些发现有助于人们进一步了解 ACE2 在 COVID-19 中的作用,并强调了将替代剪接视为病毒致病过程中的一个关键因素的重要性。毫无疑问,还需要进一步的研究来探索这些变体的功能作用及其作为治疗靶点的潜力,以对抗 COVID-19。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Characterization of novel ACE2 mRNA transcripts: The potential role of alternative splicing in SARS-CoV-2 infection
The human angiotensin converting enzyme 2 (ACE2) gene encodes a type I transmembrane protein, which is homologous to angiotensin I-converting enzyme (ACE) and belongs to the angiotensin-converting enzyme family of dipeptidyl carboxypeptidases. As highlighted by the COVID-19 pandemic, ACE2 is not only crucial for the renin-angiotensin-aldosterone system (RAAS), but also displays great affinity with the SARS-CoV-2 spike protein, representing the major receptor of the virus. Given the significance of ACE2 in COVID-19, especially among cancer patients, the present study aims to explore the transcriptional landscape of ACE2 in human cancer and non-cancerous cell lines through the design and implementation of a custom targeted long-read sequencing approach. Bioinformatics analysis of the massive parallel sequencing data led to the identification of novel ACE2 mRNA splice variants (ACE2 sv.7–sv.12) that demonstrate previously uncharacterized exon-skipping events as well as 5′ and/or 3′ alternative splice sites. Demultiplexing of the sequencing data elucidated the differential expression profile of the identified splice variants in multiple human cell types, whereas in silico analysis suggests that some of the novel splice variants could produce truncated ACE2 isoforms with altered functionalities, potentially influencing their interaction with the SARS-CoV-2 spike protein. In summary, our study sheds light on the complex alternative splicing landscape of the ACE2 gene in cancer cell lines, revealing novel splice variants that could have significant implications for SARS-CoV-2 susceptibility in cancer patients. These findings contribute to the increased understanding of ACE2′s role in COVID-19 and highlight the importance of considering alternative splicing as a key factor in viral pathogenesis. Undoubtably, further research is needed to explore the functional roles of these variants and their potential as therapeutic targets in the ongoing fight against COVID-19.
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来源期刊
Gene
Gene 生物-遗传学
CiteScore
6.10
自引率
2.90%
发文量
718
审稿时长
42 days
期刊介绍: Gene publishes papers that focus on the regulation, expression, function and evolution of genes in all biological contexts, including all prokaryotic and eukaryotic organisms, as well as viruses.
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