Circular RNA CDR1as promotes tumor progression by regulating miR-432-5p/E2F3 axis in pancreatic cancer.

Circular RNA CDR1as promotes tumor progression by regulating miR-432-5p/E2F3 axis in pancreatic cancer.
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环状RNA CDR1as通过调节胰腺癌中miR-432-5p/E2F3轴促进肿瘤进展。

DOI:
10.1186/s12935-021-01812-3
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发表时间:
2021-02-16
影响因子:
5.8
通讯作者:
Chang J
Chang J
中科院分区:
医学2区
文献类型:
--
作者:
Xiong X;Feng J;Yang X;Li H;Shi Q;Tao J;Chang J

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胰腺癌(Pancreatic cancer,PC)是一种生长速度快、转移率高的恶性肿瘤。探索新的预防腐败机制已迫在眉睫。环状RNA/miRNA/mRNA网络被广泛报道参与癌症的进展。 本研究通过微阵列分析鉴定了环状RNA CDR 1as(circCDR 1as),并在胰腺癌(PC)组织和细胞中进行了检测。用Transwell、克隆形成实验、裸鼠成瘤实验检测circCDR 1as在PC中的功能。采用Western blot、双荧光素酶报告试验等方法探讨其作用机制。我们发现circCDR 1as在PC组织中高度表达。PC组织和细胞中circCDR 1as的表达水平均高于对照组。CircCDR 1as通过海绵状miR-432- 5 p介导E2 F3表达,促进PC细胞的体外迁移、侵袭和增殖,以及体内肿瘤生长。结论:circCDR 1as可促进PC的发生发展,可能成为PC的新的诊断靶点。
Pancreatic cancer (PC), characterized with high growth rate and metastatic rate. It’s urgently necessary to explore new mechanism of PC. Circular RNA/miRNA/mRNA network was widely reported to participate in the cancer progression. In this research, circular RNA CDR1as (circCDR1as) was identified by microarray analysis and detected in pancreatic cancer (PC) tissues and cells. Transwell, colony-forming assay, nude mouse tumorigenicity assay were used to determine the function of circCDR1as in PC. Western blot, dual luciferase reporting test were applied to investigate the mechanism. We found that circCDR1as was highly expressed in PC tissues. The levels of circCDR1as in PC tissues and cells were higher than those in controls. CircCDR1as promoted the migration, invasion and proliferation of PC cells in vitro and tumor growth in vivo via mediating E2F3 expression by sponging miR-432-5p. In conclusion, circCDR1as could promote the development of PC and might be a novel diagnostic target for PC.
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