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Circular RNA ciRS-7 accelerates ESCC progression through acting as a miR-876-5p sponge to enhance MAGE-A family expression

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机构: [1]Research Center, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050017, People's Republic of China [2]Tumor Research Institute, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050017, People's Republic of China [3]Department of Pathology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
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关键词: ESCC Circular RNA ciRS-7 miR-876-5p MAGE-A

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As the most well-known circular RNA, ciRS-7 (also termed CDR1as) has been reported to act as a miR-7 sponge, resulting in reduced miR-7 activity and increased miR-7-targeted transcripts. Here, we showed that ciRS-7 is up-regulated in esophageal squamous cell carcinoma (ESCC), and is associated with the poor clinicopathological parameters of ESCC patients. Moreover, over-expression of ciRS-7 increased the proliferation, migration and invasion of ESCC cells. Mechanistic studies revealed that ciRS-7 contains nineteen miR-876-5p binding sites and acts as a miR-876-5p sponge. Over-expression of ciRS-7 resulted in the reduced tumor-repressive function of miR-876-5p on its downstream target MAGE-A family. In animal experiments, enforced ciRS-7 increased ESCC tumor growth and metastasis through targeting miR-876-5p/MAGE-A family axis. Collectively, our study provided novel evidence that ciRS-7 accelerates ESCC progression by acting as a miR-876-5p sponge to enhance MAGE-A family expression. (C) 2018 Elsevier B.V. All rights reserved.

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出版当年[2018]版:
大类 | 1 区 医学
小类 | 2 区 肿瘤学
最新[2025]版:
大类 | 1 区 医学
小类 | 2 区 肿瘤学
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出版当年[2018]版:
Q1 ONCOLOGY
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Q1 ONCOLOGY

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第一作者机构: [1]Research Center, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050017, People's Republic of China [2]Tumor Research Institute, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050017, People's Republic of China [*1]Research Center, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050017, People's Republic of China.
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通讯机构: [1]Research Center, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050017, People's Republic of China [2]Tumor Research Institute, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050017, People's Republic of China [*1]Research Center, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050017, People's Republic of China.
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