FOXM1-Mediated LINC-ROR Regulates the Proliferation and Sensitivity to Sorafenib in Hepatocellular Carcinoma

Hepatocellular carcinoma (HCC) is the second leading cause of cancer-associated death worldwide. Indeed, despite the benefit of sorafenib in the treatment of some patients with HCC, the majority of these patients have a poor response to or intolerance of sorafenib, resulting in further tumor progres...

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Main Authors: Yingru Zhi, Mubalake Abudoureyimu, Hao Zhou, Ting Wang, Bing Feng, Rui Wang, Xiaoyuan Chu
Format: Article
Language:English
Published: Elsevier 2019-06-01
Series:Molecular Therapy: Nucleic Acids
Online Access:http://www.sciencedirect.com/science/article/pii/S2162253119300812
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author Yingru Zhi
Mubalake Abudoureyimu
Hao Zhou
Ting Wang
Bing Feng
Rui Wang
Xiaoyuan Chu
author_facet Yingru Zhi
Mubalake Abudoureyimu
Hao Zhou
Ting Wang
Bing Feng
Rui Wang
Xiaoyuan Chu
author_sort Yingru Zhi
collection DOAJ
description Hepatocellular carcinoma (HCC) is the second leading cause of cancer-associated death worldwide. Indeed, despite the benefit of sorafenib in the treatment of some patients with HCC, the majority of these patients have a poor response to or intolerance of sorafenib, resulting in further tumor progression. Exploring the mechanisms underlying sorafenib resistance is essential to the treatment of HCC. Long noncoding RNAs (lncRNAs) are known as participants in tumorigenesis. In this study, we identified that long intergenic non-protein coding RNA, regulator of reprogramming (LINC-ROR), was upregulated in HCC cell lines, which was transcriptionally activated by FOXM1. Furthermore, the sponging of miR-876-5p by LINC-ROR released FOXM1, thereby forming a positive-feedback loop. Additionally, we demonstrated that upregulation of both FOXM1 and LINC-ROR impaired the sensitivity to sorafenib in HCC cells. The role of this feedback loop was demonstrated by rescue assays. These results revealed a novel molecular feedback loop between LINC-ROR and FOXM1 and elucidated their functions in sorafenib sensitivity of HCC cell lines. Keywords: LINC-ROR, FOXM1, miR-876-5p, HCC, sorafenib, sensitivity
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spelling doaj.art-92f55a1e726b4a6f950e27c5c15452fe2022-12-21T23:04:06ZengElsevierMolecular Therapy: Nucleic Acids2162-25312019-06-0116576588FOXM1-Mediated LINC-ROR Regulates the Proliferation and Sensitivity to Sorafenib in Hepatocellular CarcinomaYingru Zhi0Mubalake Abudoureyimu1Hao Zhou2Ting Wang3Bing Feng4Rui Wang5Xiaoyuan Chu6Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, People’s Republic of ChinaDepartment of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, People’s Republic of ChinaDepartment of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing Medical University, Nanjing, Jiangsu Province, People’s Republic of ChinaDepartment of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, People’s Republic of ChinaDepartment of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, People’s Republic of ChinaDepartment of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, People’s Republic of China; Corresponding author: Rui Wang, Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Jiangsu Province, People’s Republic of China.Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, People’s Republic of ChinaHepatocellular carcinoma (HCC) is the second leading cause of cancer-associated death worldwide. Indeed, despite the benefit of sorafenib in the treatment of some patients with HCC, the majority of these patients have a poor response to or intolerance of sorafenib, resulting in further tumor progression. Exploring the mechanisms underlying sorafenib resistance is essential to the treatment of HCC. Long noncoding RNAs (lncRNAs) are known as participants in tumorigenesis. In this study, we identified that long intergenic non-protein coding RNA, regulator of reprogramming (LINC-ROR), was upregulated in HCC cell lines, which was transcriptionally activated by FOXM1. Furthermore, the sponging of miR-876-5p by LINC-ROR released FOXM1, thereby forming a positive-feedback loop. Additionally, we demonstrated that upregulation of both FOXM1 and LINC-ROR impaired the sensitivity to sorafenib in HCC cells. The role of this feedback loop was demonstrated by rescue assays. These results revealed a novel molecular feedback loop between LINC-ROR and FOXM1 and elucidated their functions in sorafenib sensitivity of HCC cell lines. Keywords: LINC-ROR, FOXM1, miR-876-5p, HCC, sorafenib, sensitivityhttp://www.sciencedirect.com/science/article/pii/S2162253119300812
spellingShingle Yingru Zhi
Mubalake Abudoureyimu
Hao Zhou
Ting Wang
Bing Feng
Rui Wang
Xiaoyuan Chu
FOXM1-Mediated LINC-ROR Regulates the Proliferation and Sensitivity to Sorafenib in Hepatocellular Carcinoma
Molecular Therapy: Nucleic Acids
title FOXM1-Mediated LINC-ROR Regulates the Proliferation and Sensitivity to Sorafenib in Hepatocellular Carcinoma
title_full FOXM1-Mediated LINC-ROR Regulates the Proliferation and Sensitivity to Sorafenib in Hepatocellular Carcinoma
title_fullStr FOXM1-Mediated LINC-ROR Regulates the Proliferation and Sensitivity to Sorafenib in Hepatocellular Carcinoma
title_full_unstemmed FOXM1-Mediated LINC-ROR Regulates the Proliferation and Sensitivity to Sorafenib in Hepatocellular Carcinoma
title_short FOXM1-Mediated LINC-ROR Regulates the Proliferation and Sensitivity to Sorafenib in Hepatocellular Carcinoma
title_sort foxm1 mediated linc ror regulates the proliferation and sensitivity to sorafenib in hepatocellular carcinoma
url http://www.sciencedirect.com/science/article/pii/S2162253119300812
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