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首页> 外文期刊>The FEBS journal >MicroRNA-9 inhibits ovarian cancer cell growth through regulation of NF-kappaB1
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MicroRNA-9 inhibits ovarian cancer cell growth through regulation of NF-kappaB1

机译:MicroRNA-9通过调节NF-κB1抑制卵巢癌细胞的生长

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摘要

MicroRNAs are emerging as important regulators of cancer-related processes. Our studies show that microRNA-9 (miR-9) is downregulated in human ovarian cancer relative to normal ovary, and overexpression of miR-9 suppresses cell growth in vitro. Furthermore, the 3'-UTR of NF-kappaB1 mRNA is found to be regulated directly by miR-9, demonstrating that NF-kappaB1 is a functionally important target of miR-9 in ovarian cancer cells. When miR-9 is overexpressed in ovarian cancer cells, the mRNA and protein levels of NF-kappaB1 are both suppressed, whereas inhibition of miR-9 results in an increase in the NF-kappaB1 expression level. Ovarian cancer tissues display significantly low expression of miR-9 and a high level of NF-kappaB1 compared with normal tissues, indicating that regulation of NF-kappaB1 by miR-9 is an important mechanism for miR-9 to inhibit ovarian cancer proliferation.
机译:微小RNA逐渐成为癌症相关过程的重要调节剂。我们的研究表明,相对于正常卵巢,人类卵巢癌中的microRNA-9(miR-9)被下调,而miR-9的过表达在体外抑制细胞生长。此外,发现NF-kappaB1 mRNA的3'-UTR直接受miR-9调控,表明NF-kappaB1是卵巢癌细胞中miR-9的功能重要靶标。当miR-9在卵巢癌细胞中过表达时,NF-kappaB1的mRNA和蛋白质水平均被抑制,而miR-9的抑制导致NF-kappaB1表达水平增加。与正常组织相比,卵巢癌组织显示出miR-9的低表达和高水平的NF-kappaB1,这表明miR-9对NF-kappaB1的调节是miR-9抑制卵巢癌增殖的重要机制。

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