RRP9 Promotes Esophageal Squamous Cell Carcinoma Progression through E2F1 Transcriptional Regulation of CDK1.

IF 2.6 3区 生物学 Q3 MATERIALS SCIENCE, BIOMATERIALS
Gang He, Yilong Wan, Yanbo Zhu, Bo Peng, Shengxiang Shao, Xinyi Zou, Zhenyu Han, Jiaxi Li, Sheng Ju, Xin Tong, Jun Zhao, Hansi Liang, Liuqing Zhang, Jiashi Xiong, Dong Jiang
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Abstract

Esophageal cancer is a major disease that seriously threatens human health. Ribosomal RNA biogenesis is implicated in tumorigenesis, while the small nucleolar RNAs (snoRNAs) are responsible for post-transcriptional modifications of ribosomal RNAs during biogenesis, which are identified as potential markers of various cancers. The clinical significance, biological behavior, and potential molecular mechanism of the nucleolar small nuclear ribonucleoprotein RRP9 in esophageal squamous cell carcinoma (ESCC), which is a major pathological type of esophageal cancer, are investigated in this study. It is found that RRP9 is abnormally highly expressed in ESCC tissues and is closely associated with poor prognosis. Furthermore, it is found that RRP9 could regulate the cell cycle protein-dependent kinase CDK1 to promote ESCC progression in vitro and in vivo. Mechanistically, RRP9 promotes ESCC progression through enhancing the E2F1-mediated transcriptional regulation of CDK1. Collectively, the results defined RRP9 as an important tumor driver in ESCC that acted by activating oncogenic signaling by the E2F1-CDK1 pathway, and suggested RRP9 as a candidate therapeutic target for ESCC.

RRP9通过E2F1转录调控CDK1促进食管鳞状细胞癌进展。
食管癌是严重威胁人类健康的重大疾病。核糖体RNA的生物发生与肿瘤的发生有关,而小核核RNA (snoRNAs)在生物发生过程中负责核糖体RNA的转录后修饰,被认为是各种癌症的潜在标志物。本研究探讨食管癌主要病理类型食管鳞状细胞癌(ESCC)中核仁小核糖核蛋白RRP9的临床意义、生物学行为及可能的分子机制。研究发现,RRP9在ESCC组织中异常高表达,与预后不良密切相关。此外,在体外和体内均发现RRP9可调控细胞周期蛋白依赖性激酶CDK1,促进ESCC的进展。在机制上,RRP9通过增强e2f1介导的CDK1转录调节来促进ESCC的进展。综上所述,这些结果将RRP9定义为ESCC中一个重要的肿瘤驱动因子,通过激活E2F1-CDK1通路的致癌信号发挥作用,并建议RRP9作为ESCC的候选治疗靶点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Advanced biology
Advanced biology Biochemistry, Genetics and Molecular Biology-Biochemistry, Genetics and Molecular Biology (all)
CiteScore
6.60
自引率
0.00%
发文量
130
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