Cloning and characterization of the putative AFAP1-AS1 promoter region

Cloning and characterization of the putative AFAP1-AS1 promoter region
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假定的 AFAP1-AS1 启动子区域的克隆和表征

DOI:
10.7150/jca.29049
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发表时间:
2019-01
期刊:
影响因子:
3.9
通讯作者:
Xiong Fang
Xiong Fang
中科院分区:
医学3区
文献类型:
--
作者:
Wei Fang;Jing Yi Zhou;He Yi;Tang Yon Yon;Yang Li Ting;Wu Ying Fen;Tang Le;Shi Lei;Gong Zhao Jian;Guo Can;Zhou Ming;Xiang Bo;Li Xiao Ling;Li Yong;Li Gui Yuan;Xiong Wei;Zeng Zhao Yang;Xiong Fang

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肌动蛋白细丝相关蛋白1-反义RNA1(AFAP1-AS1)是一种与癌症相关的非编码长链RNA,已被发现在多种类型的癌症中表达上调。AFAP1-AS1在包括鼻咽癌在内的多种肿瘤的发生、发展和预后不良中起重要作用。然而,AFAP1-AS1表达的调控机制尚不清楚。在我们的研究中,通过综合生物信息学分析预测了AFAP1-AS1的潜在启动子区域。启动子缺失分析表明,AFAP1-AS1的最小启动子区域位于-359~-28bp之间。芯片检测结果表明,AFAP1-AS1启动子对转录因子c-Myc有反应,可以促进AFAP1-AS1的高表达。本研究首次克隆并鉴定了AFAP1-AS1启动子区域。我们的发现将有助于更好地了解AFAP1-AS1高表达在肿瘤发生中的潜在机制,并为治疗AFAP1-AS1在鼻咽癌中的高表达提供新的策略。
Actin filament-associated protein 1-antisense RNA1 (AFAP1-AS1), a cancer-related long non-coding RNA, has been found to be upregulated in multiple types of cancers. AFAP1-AS1 is important for the initiation, progression and poor prognosis of many cancers, including nasopharyngeal carcinoma (NPC). However, the mechanism underlying the regulation of AFAP1-AS1 expression is not well-understood. In our study, the potential promoter region of AFAP1-AS1 was predicted by comprehensive bioinformatics analysis. Moreover, promoter deletion analysis identified the sequence between positions -359 and -28 bp as the minimal promoter region of AFAP1-AS1. The ChIP assay results indicate that the AFAP1-AS1 promoter is responsive to the transcription factor c-Myc, which can promote high AFAP1-AS1 expression. This study is the first to clone and characterize the AFAP1-AS1 promoter region. Our findings will help to better understand the underlying mechanism of high AFAP1-AS1 expression in tumorigenesis and to develop new strategies for therapeutic high expression of AFAP1-AS1 in NPC.
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