Emerging roles of circRNA_001569 targeting miR-145 in the proliferation and invasion of colorectal cancer.

Emerging roles of circRNA_001569 targeting miR-145 in the proliferation and invasion of colorectal cancer.
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靶向miR-145的circRNA_001569在结直肠癌增殖和侵袭中的新作用

DOI:
10.18632/oncotarget.8589
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发表时间:
2016-05-03
期刊:
影响因子:
--
通讯作者:
Liang L
Liang L
中科院分区:
其他
文献类型:
--
作者:
Xie H;Ren X;Xin S;Lan X;Lu G;Lin Y;Yang S;Zeng Z;Liao W;Ding YQ;Liang L

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环状RNA(circRNA)是一大类RNA,最近在哺乳动物中显示出作为基因调控因子的巨大能力。其中一些与 microRNA (miRNA) 结合并充当天然 miRNA 海绵来抑制相关 miRNA 的活性。在这里,我们证明 hsa_circ_001569 在结直肠癌(CRC)的细胞增殖和侵袭中发挥正向调节作用。此外,hsa_circ_001569 被鉴定为 miR-145 的海绵,并上调 miR-145 功能靶点 E2F5、BAG4 和 FMNL2。在CRC组织中,circ_001569与miR-145呈负相关,miR-145与E2F5、BAG4和FMNL2表达呈负相关。我们的研究揭示了 circ_001569 在 CRC 细胞增殖和侵袭中的新调控机制,提供了 circ_001569 的全面景观,这将有助于进一步发现 CRC 进展中的生物标志物。
Circular RNAs (circRNAs), a large class of RNAs, have recently shown huge capabilities as gene regulators in mammals. Some of them bind with microRNAs (miRNAs) and act as natural miRNA sponges to inhibit related miRNAs’ activities. Here we showed that hsa_circ_001569 acted as a positive regulator in cell proliferation and invasion of colorectal cancer (CRC). Moreover, hsa_circ_001569 was identified as a sponge of miR-145 and up-regulated miR-145 functional targets E2F5, BAG4 and FMNL2. In CRC tissues, circ_001569 negatively correlated with miR-145, and miR-145 correlated negatively with E2F5, BAG4 and FMNL2 expressions. Our study reveals a novel regulatory mechanism of circ_001569 in cell proliferation and invasion in CRC, provides a comprehensive landscape of circ_001569 that will facilitate further biomarker discoveries in the progression of CRC.
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