A Circular RNA Derived from Golgi Glycoprotein 1 mRNA Regulates KRAS Expression and Promotes Colorectal Cancer Progression by Targeting microRNA-622
Shuhong Hao,1 Rongfeng Qu,1 Chunmei Hu,1 Min Wang,2 Yarong Li1 1Department of Hematology and Oncology, The Second Hospital of Jilin University, Changchun, Jilin, People’s Republic of China; 2Department of General Surgery, The Second Hospital of Jilin University, Changchun, Jilin, People&am...
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doaj-8a9494976c1b4ee29a2b3711a9ec9cfb2020-12-08T19:43:20ZengDove Medical PressOncoTargets and Therapy1178-69302020-12-01Volume 13126371264860143A Circular RNA Derived from Golgi Glycoprotein 1 mRNA Regulates KRAS Expression and Promotes Colorectal Cancer Progression by Targeting microRNA-622Hao SQu RHu CWang MLi YShuhong Hao,1 Rongfeng Qu,1 Chunmei Hu,1 Min Wang,2 Yarong Li1 1Department of Hematology and Oncology, The Second Hospital of Jilin University, Changchun, Jilin, People’s Republic of China; 2Department of General Surgery, The Second Hospital of Jilin University, Changchun, Jilin, People’s Republic of ChinaCorrespondence: Yarong Li; Min Wang Ziqiang Street No. 265, Changchun, Jilin 130041, People’s Republic of ChinaTel +86 431 81136827; +86 431 81136427 Fax +86 431 81136827; +86 431 81136427 Email meiyoushenmebuxing@126.com; jdeywangmin@163.comBackground: Circular RNAs (circRNAs) represent a distinct class of non-coding RNAs that have attracted substantial research attention in recent years. We identified a novel circRNA derived from golgi glycoprotein 1 mRNA (circ_GLG1), the role of which is unknown in colorectal cancer (CRC). The purpose of this study was to explore the potential roles and mechanisms of circ_GLG1 in CRC.Materials and Methods: Quantitative reverse transcriptase-polymerase chain reaction analysis was performed to quantify circ_GLG1 expression in 40 pairs of CRC tissues and adjacent normal tissues as well as CRC cell lines. DLD1 CRC cells were transfected with a small-interfering RNA against circ_GLG1, after which cell proliferation, viability, invasion, and migration were measured through cell counting kit-8 colony-formation, transwell, and wound-healing assays, respectively. Dual-luciferase reporter assays were performed to explore the binding sites among circ_GLG1, miR-622, and Kirsten rat sarcoma (KRAS) transcripts. KRAS protein expression was detected using Western blot analysis.Results: Circ_GLG1 expression was significantly higher in CRC tissues than in adjacent normal tissues. Knocking down circ_GLG1 in DLD1 cells inhibited tumor cell viability, proliferation, invasion, and migration, and these effects were reversed by co-transfecting an miR-622 inhibitor. Circ_GLG1 promoted KRAS expression at both the mRNA and protein levels by acting as an miR-622 sponge. Dual-luciferase reporter assays demonstrated that miR-622 interacted with circ_GLG1 and KRAS mRNA.Conclusion: Our study revealed the role of the circ_GLG1–miR-622–KRAS axis in CRC. Moreover, our findings provide insight into the molecular mechanism of circ_GLG1 in CRC and suggest potential new biomarkers for diagnosing this disease.Keywords: colorectal cancer, circ_GLG1, miR-622, KRAShttps://www.dovepress.com/a-circular-rna-derived-from-golgi-glycoprotein-1-mrna-regulates-kras-e-peer-reviewed-article-OTTcolorectal cancercirc_glg1mir-622kras |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hao S Qu R Hu C Wang M Li Y |
spellingShingle |
Hao S Qu R Hu C Wang M Li Y A Circular RNA Derived from Golgi Glycoprotein 1 mRNA Regulates KRAS Expression and Promotes Colorectal Cancer Progression by Targeting microRNA-622 OncoTargets and Therapy colorectal cancer circ_glg1 mir-622 kras |
author_facet |
Hao S Qu R Hu C Wang M Li Y |
author_sort |
Hao S |
title |
A Circular RNA Derived from Golgi Glycoprotein 1 mRNA Regulates KRAS Expression and Promotes Colorectal Cancer Progression by Targeting microRNA-622 |
title_short |
A Circular RNA Derived from Golgi Glycoprotein 1 mRNA Regulates KRAS Expression and Promotes Colorectal Cancer Progression by Targeting microRNA-622 |
title_full |
A Circular RNA Derived from Golgi Glycoprotein 1 mRNA Regulates KRAS Expression and Promotes Colorectal Cancer Progression by Targeting microRNA-622 |
title_fullStr |
A Circular RNA Derived from Golgi Glycoprotein 1 mRNA Regulates KRAS Expression and Promotes Colorectal Cancer Progression by Targeting microRNA-622 |
title_full_unstemmed |
A Circular RNA Derived from Golgi Glycoprotein 1 mRNA Regulates KRAS Expression and Promotes Colorectal Cancer Progression by Targeting microRNA-622 |
title_sort |
circular rna derived from golgi glycoprotein 1 mrna regulates kras expression and promotes colorectal cancer progression by targeting microrna-622 |
publisher |
Dove Medical Press |
series |
OncoTargets and Therapy |
issn |
1178-6930 |
publishDate |
2020-12-01 |
description |
Shuhong Hao,1 Rongfeng Qu,1 Chunmei Hu,1 Min Wang,2 Yarong Li1 1Department of Hematology and Oncology, The Second Hospital of Jilin University, Changchun, Jilin, People’s Republic of China; 2Department of General Surgery, The Second Hospital of Jilin University, Changchun, Jilin, People’s Republic of ChinaCorrespondence: Yarong Li; Min Wang Ziqiang Street No. 265, Changchun, Jilin 130041, People’s Republic of ChinaTel +86 431 81136827; +86 431 81136427 Fax +86 431 81136827; +86 431 81136427 Email meiyoushenmebuxing@126.com; jdeywangmin@163.comBackground: Circular RNAs (circRNAs) represent a distinct class of non-coding RNAs that have attracted substantial research attention in recent years. We identified a novel circRNA derived from golgi glycoprotein 1 mRNA (circ_GLG1), the role of which is unknown in colorectal cancer (CRC). The purpose of this study was to explore the potential roles and mechanisms of circ_GLG1 in CRC.Materials and Methods: Quantitative reverse transcriptase-polymerase chain reaction analysis was performed to quantify circ_GLG1 expression in 40 pairs of CRC tissues and adjacent normal tissues as well as CRC cell lines. DLD1 CRC cells were transfected with a small-interfering RNA against circ_GLG1, after which cell proliferation, viability, invasion, and migration were measured through cell counting kit-8 colony-formation, transwell, and wound-healing assays, respectively. Dual-luciferase reporter assays were performed to explore the binding sites among circ_GLG1, miR-622, and Kirsten rat sarcoma (KRAS) transcripts. KRAS protein expression was detected using Western blot analysis.Results: Circ_GLG1 expression was significantly higher in CRC tissues than in adjacent normal tissues. Knocking down circ_GLG1 in DLD1 cells inhibited tumor cell viability, proliferation, invasion, and migration, and these effects were reversed by co-transfecting an miR-622 inhibitor. Circ_GLG1 promoted KRAS expression at both the mRNA and protein levels by acting as an miR-622 sponge. Dual-luciferase reporter assays demonstrated that miR-622 interacted with circ_GLG1 and KRAS mRNA.Conclusion: Our study revealed the role of the circ_GLG1–miR-622–KRAS axis in CRC. Moreover, our findings provide insight into the molecular mechanism of circ_GLG1 in CRC and suggest potential new biomarkers for diagnosing this disease.Keywords: colorectal cancer, circ_GLG1, miR-622, KRAS |
topic |
colorectal cancer circ_glg1 mir-622 kras |
url |
https://www.dovepress.com/a-circular-rna-derived-from-golgi-glycoprotein-1-mrna-regulates-kras-e-peer-reviewed-article-OTT |
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