表观遗传修饰p73 -抗肿瘤表观遗传靶点的表达

IF 3.1 Q2 ONCOLOGY Oncology Reviews Pub Date : 2019-07-22 DOI:10.4081/oncol.2019.421
Faiza Naseer, M. Saleem
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引用次数: 0

摘要

p73是p53转录因子家族的新成员,有两种类型。首先是具有转录活性的TAp73,通过上游启动子作为肿瘤抑制因子和重要的凋亡诱导因子表达,它在细胞周期阻滞/分化中也起关键作用;其次是具有转录活性的ΔNp73,通过下游调节因子作为癌基因表达。这两种类型都以不同的异构体表达,这些异构体起源于c端不同的剪接事件。DNA损伤后,翻译后修饰通过诱导或抑制p73结构域中存在的各种蛋白质,引起各种氨基酸残基的构象变化。这些修饰可能导致p73表达水平的上调或下调,以及改变蛋白质的转录活性和/或稳定性。在这篇综述中,我们努力收集了所有关于p73在癌症中的作用、修饰及其后效的现有数据。
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Epigenetic modification in the expression of p73 p73 - epigenetic target for anticancer therapy
A p73 is a new member of p53 family of transcription factor, having two types. First is TAp73, transcriptionally active and expressed via upstream promoter as a tumor suppressor and vital apoptotic inductor, it also has a key role in cell cycle arrest/differentiation and Second is ΔNp73 that is transcriptionally inactive and expressed via downstream regulator as oncogenes. Both types are expressed in various isoforms, which originate from alternative splicing events at the C-terminus. Upon DNA damage, posttranslational modifications cause conformational changes in various amino acid residues via induction or inhibition of various proteins, which are present in the structural domains of p73. These modifications may cause up- or down-regulation of p73 expression levels, as well as alters the transcriptional activity and/or stability of the protein. In this review, we have made an effort to assemble all existing data regarding the role of p73, its modification and after effects in cancer.
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来源期刊
Oncology Reviews
Oncology Reviews ONCOLOGY-
CiteScore
6.30
自引率
0.00%
发文量
9
审稿时长
9 weeks
期刊介绍: Oncology Reviews is a quarterly peer-reviewed, international journal that publishes authoritative state-of-the-art reviews on preclinical and clinical aspects of oncology. The journal will provide up-to-date information on the latest achievements in different fields of oncology for both practising clinicians and basic researchers. Oncology Reviews aims at being international in scope and readership, as reflected also by its Editorial Board, gathering the world leading experts in both pre-clinical research and everyday clinical practice. The journal is open for publication of supplements, monothematic issues and for publishing abstracts of scientific meetings; conditions can be obtained from the Editor-in-Chief or the publisher.
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