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LINE-1在肿瘤早期诊断和治疗中的研究与应用

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  • 中国医学科学院&北京协和医学院,医药生物技术研究所免疫生物学室,北京 100050
寇艳妮,在读硕士研究生,专业方向:LINE-1与肿瘤维持的内在机制研究。E-mail: yanni_1995@126.com

收稿日期: 2021-02-10

  修回日期: 2021-05-07

  网络出版日期: 2021-05-28

基金资助

国家科技重大专项编号(2018ZX10301408-004);国家自然科学基金资助编号(31870164)

Research and application on LINE-1 in diagnosis and treatment of tumorigenesis

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  • Department of Immunology, Institute of Medicinal Biotechnology, Chinese academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China

Received date: 2021-02-10

  Revised date: 2021-05-07

  Online published: 2021-05-28

Supported by

Supported by the National Science and Technology Major Project of the Ministry of Science and Technology of China No(2018ZX10301408-004);the National Natural Science Foundation of China No(31870164)

摘要

长散布元件-1 (long interspersed elements-1, LINE-1)约占人类基因组的17%,是人类基因组中唯一具有自主转座能力的转座子。LINE-1可通过逆转录转座过程插入到新的基因位点上,从而会导致基因组的不稳定。因而机体对LINE-1的复制和转座有着严格的限制,在正常体细胞中几乎检测不到LINE-1的表达。然而,在绝大多数的肿瘤组织或癌组织中LINE-1的表达却普遍存在,提示LINE-1的表达和转座与肿瘤的发生发展密切相关。LINE-1在肿瘤细胞中的差异表达可以作为肿瘤早期诊断的标志物,同时也可作为肿瘤治疗预后评价的重要指标。与此同时,LINE-1作为肿瘤治疗潜在靶点的可行性也在评估和验证中。本文介绍了在临床方面LINE-1作为肿瘤诊断、预后方面的应用,以及作为肿瘤治疗潜在靶点的研究进展,以期为临床上肿瘤的诊断和治疗提供一些参考。

本文引用格式

寇艳妮, 岑山, 李晓宇 . LINE-1在肿瘤早期诊断和治疗中的研究与应用[J]. 遗传, 2021 , 43(6) : 571 -579 . DOI: 10.16288/j.yczz.21-062

Abstract

Long interspersed element-1 (LINE-1), which is the only autonomous retrotransposon in human genome, makes up about 17% of the human genome. For LINE-1 retrotransposition may result in genome instability, it was strictly restricted by organisms, and its expression was therefore barely detected in normal somatic cells. However, the expression of LINE-1 is a common phenomenon in most tumor or cancer tissues, suggesting a close relationship between LINE-1 expression and cancer development. Differentially expressed LINE-1 in cancer tissues can be used as a biomarker for tumor diagnosis and an important indicator of prognosis after cancer therapeutics. Meanwhile, the feasibility of LINE-1 as a potential drug target for tumor treatment has also been evaluating and verifying in clinicals. In this review, we introduce the application of LINE-1 as a biomarker in tumor diagnosis and prognostic, as well as the research progress in LINE-1 as potential drug target for tumor treatment, in order to provide some references for clinical application in cancer treatment.

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