Circ_0091579 enhances the malignancy of hepatocellular carcinoma via miR-1287/PDK2 axis

Several articles have indicated that circular RNAs are involved in pathogenesis of human cancers. Nevertheless, the role of circ_0091579 in hepatocellular carcinoma (HCC) progression remains to be revealed. Quantitative reverse transcriptase polymerase chain reaction was carried out to examine the e...

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Autores principales:	Shu Junwei, Du Jiayuan, Wang Futao, Cheng Yong, Chen Gangxin, Xu Bing, Zhang Dianpeng, Chen Shuangjiang
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	hepatocellular carcinoma circ_0091579 mir-1287 pdk2 glycolysis Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/971c0c60823647e29ab86fe9d7efdf47
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spelling	oai:doaj.org-article:971c0c60823647e29ab86fe9d7efdf472021-12-05T14:10:40ZCirc_0091579 enhances the malignancy of hepatocellular carcinoma via miR-1287/PDK2 axis2391-541210.1515/biol-2021-0009https://doaj.org/article/971c0c60823647e29ab86fe9d7efdf472021-01-01T00:00:00Zhttps://doi.org/10.1515/biol-2021-0009https://doaj.org/toc/2391-5412Several articles have indicated that circular RNAs are involved in pathogenesis of human cancers. Nevertheless, the role of circ_0091579 in hepatocellular carcinoma (HCC) progression remains to be revealed. Quantitative reverse transcriptase polymerase chain reaction was carried out to examine the expression of circ_0091579 and miR-1287. The proliferation of HCC cells was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Flow cytometry was performed to analyze cell cycle progression and apoptosis. Western blot assay was conducted to detect the protein expression of CyclinD1, Cleaved caspase3, and pyruvate dehydrogenase kinase 2 (PDK2). Cell glycolysis was evaluated by measuring the uptake of glucose, the production of lactate, and extracellular acidification rate. The target relationship between miR-1287 and circ_0091579 or PDK2 was verified by dual-luciferase reporter assay, RNA immunoprecipitation assay, and RNA-pull down assay. The enrichment of circ_0091579 was enhanced in HCC tissues (n = 77) and four HCC cell lines (HB611, Huh-7, MHCC97, and SNU423) compared with adjacent non-tumor tissues (n = 77) and normal human liver cell line THLE-2. Circ_0091579 mediated the promotion of proliferation and glycolysis and the suppression of apoptosis of HCC cells. MiR-1287 was a direct target of circ_0091579 in HCC cells. MiR-1287 knockdown reversed the effects caused by circ_0091579 interference on the functions of HCC cells. PDK2 could bind to miR-1287 in HCC cells. Circ_0091579 upregulated the enrichment of PDK2 by acting as a sponge of miR-1287 in HCC cells. The influence caused by circ_0091579 intervention on HCC cells was attenuated by overexpression of PDK2. Circ_0091579 interference impeded the progression of HCC in vivo. Circ_0091579 deteriorated HCC by promoting the proliferation and glycolytic metabolism and suppressing the apoptosis of HCC cells via miR-1287/PDK2 axis.Shu JunweiDu JiayuanWang FutaoCheng YongChen GangxinXu BingZhang DianpengChen ShuangjiangDe Gruyterarticlehepatocellular carcinomacirc_0091579mir-1287pdk2glycolysisBiology (General)QH301-705.5ENOpen Life Sciences, Vol 16, Iss 1, Pp 69-83 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hepatocellular carcinoma circ_0091579 mir-1287 pdk2 glycolysis Biology (General) QH301-705.5
spellingShingle	hepatocellular carcinoma circ_0091579 mir-1287 pdk2 glycolysis Biology (General) QH301-705.5 Shu Junwei Du Jiayuan Wang Futao Cheng Yong Chen Gangxin Xu Bing Zhang Dianpeng Chen Shuangjiang Circ_0091579 enhances the malignancy of hepatocellular carcinoma via miR-1287/PDK2 axis
description	Several articles have indicated that circular RNAs are involved in pathogenesis of human cancers. Nevertheless, the role of circ_0091579 in hepatocellular carcinoma (HCC) progression remains to be revealed. Quantitative reverse transcriptase polymerase chain reaction was carried out to examine the expression of circ_0091579 and miR-1287. The proliferation of HCC cells was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Flow cytometry was performed to analyze cell cycle progression and apoptosis. Western blot assay was conducted to detect the protein expression of CyclinD1, Cleaved caspase3, and pyruvate dehydrogenase kinase 2 (PDK2). Cell glycolysis was evaluated by measuring the uptake of glucose, the production of lactate, and extracellular acidification rate. The target relationship between miR-1287 and circ_0091579 or PDK2 was verified by dual-luciferase reporter assay, RNA immunoprecipitation assay, and RNA-pull down assay. The enrichment of circ_0091579 was enhanced in HCC tissues (n = 77) and four HCC cell lines (HB611, Huh-7, MHCC97, and SNU423) compared with adjacent non-tumor tissues (n = 77) and normal human liver cell line THLE-2. Circ_0091579 mediated the promotion of proliferation and glycolysis and the suppression of apoptosis of HCC cells. MiR-1287 was a direct target of circ_0091579 in HCC cells. MiR-1287 knockdown reversed the effects caused by circ_0091579 interference on the functions of HCC cells. PDK2 could bind to miR-1287 in HCC cells. Circ_0091579 upregulated the enrichment of PDK2 by acting as a sponge of miR-1287 in HCC cells. The influence caused by circ_0091579 intervention on HCC cells was attenuated by overexpression of PDK2. Circ_0091579 interference impeded the progression of HCC in vivo. Circ_0091579 deteriorated HCC by promoting the proliferation and glycolytic metabolism and suppressing the apoptosis of HCC cells via miR-1287/PDK2 axis.
format	article
author	Shu Junwei Du Jiayuan Wang Futao Cheng Yong Chen Gangxin Xu Bing Zhang Dianpeng Chen Shuangjiang
author_facet	Shu Junwei Du Jiayuan Wang Futao Cheng Yong Chen Gangxin Xu Bing Zhang Dianpeng Chen Shuangjiang
author_sort	Shu Junwei
title	Circ_0091579 enhances the malignancy of hepatocellular carcinoma via miR-1287/PDK2 axis
title_short	Circ_0091579 enhances the malignancy of hepatocellular carcinoma via miR-1287/PDK2 axis
title_full	Circ_0091579 enhances the malignancy of hepatocellular carcinoma via miR-1287/PDK2 axis
title_fullStr	Circ_0091579 enhances the malignancy of hepatocellular carcinoma via miR-1287/PDK2 axis
title_full_unstemmed	Circ_0091579 enhances the malignancy of hepatocellular carcinoma via miR-1287/PDK2 axis
title_sort	circ_0091579 enhances the malignancy of hepatocellular carcinoma via mir-1287/pdk2 axis
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/971c0c60823647e29ab86fe9d7efdf47
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Circ_0091579 enhances the malignancy of hepatocellular carcinoma via miR-1287/PDK2 axis

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