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Verma S, Sahu BD, Mugale MN. Role of lncRNAs in hepatocellular carcinoma. Life Sci 2023; 325:121751. [PMID: 37169145 DOI: 10.1016/j.lfs.2023.121751] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/21/2023] [Accepted: 04/29/2023] [Indexed: 05/13/2023]
Abstract
Hepatocellular carcinoma (HCC) is among the deadliest cancer in human malignancies. It is the most common and severe type of primary liver cancer. However, the molecular mechanisms underlying HCC pathogenesis remain poorly understood. Long non-coding RNAs (lncRNAs), a new kind of RNA and epigenetic factors, play a crucial role in tumorigenesis and the progression of HCC. LncRNAs are capable of promoting the autophagy, proliferation, and migration of tumor cells by targeting and modulating the expression of downstream genes in signaling pathways related to cancer; these transcripts modify the activity and expression of various tumor suppressors and oncogenes. LncRNAs could act as biomarkers for treatment approaches such as immunotherapy, chemotherapy, and surgery to effectively treat HCC patients. Improved knowledge regarding the aetiology of HCC may result from an advanced understanding of lncRNAs. Enhanced oxidative stress in the mitochondrial and Endoplasmic reticulum leads to the activation of unfolded protein response pathway that plays a crucial role in the pathophysiology of hepatocellular carcinoma. The mutual regulation between LncRNAs and Endoplasmic reticulum (ER) stress in cancer and simultaneous activation of the unfolded protein response (UPR) pathway determines the fate of tumor cells in HCC. Mitochondria-associated lncRNAs work as essential components of several gene regulatory networks; abnormal regulation of mitochondria-associated lncRNAs may lead to oncogenesis, which provides further insight into the understanding of tumorigenesis and therapeutic strategies.
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Affiliation(s)
- Smriti Verma
- Division of Toxicology and Experimental Medicine, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Bidhya Dhar Sahu
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Guwahati, Changsari, 781101, Assam, India
| | - Madhav Nilakanth Mugale
- Division of Toxicology and Experimental Medicine, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Ma Q, Lu Q, Lei X, Zhao J, Sun W, Huang D, Zhu Q, Xu Q. Relationship between HuR and tumor drug resistance. Clin Transl Oncol 2023:10.1007/s12094-023-03109-5. [PMID: 36947360 DOI: 10.1007/s12094-023-03109-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 01/31/2023] [Indexed: 03/23/2023]
Abstract
Human resistance protein R (HuR), also known as embryonic lethal abnormal visual-like protein (ELAVL1), is an RNA-binding protein widely expressed in vivo that affects the mRNA stability of targeted and is involved in post-transcriptional regulation. Recent studies have shown that HuR is aberrantly expressed in different human cancers and is an essential factor in poor clinical prognosis. The role of HuR in numerous tumors suggests that it could be a new target for tumor therapy and as a marker for efficacy and prognostic assessment. This review focuses on the relationship between HuR and drug resistance in different tumors and briefly describes the structure, function, and inhibitors of HuR. We summarize the mechanisms by which HuR causes tumor resistance and the molecular targets affected.
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Affiliation(s)
- Qiancheng Ma
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Qiliang Lu
- Qingdao Medical College, Qingdao University, Qingdao, 266000, China
| | | | - Jie Zhao
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Wen Sun
- Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Dongsheng Huang
- The Key Laboratory of Tumor Molecular Diagnosis, and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, 310014, China.
| | - Qing Zhu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Qiuran Xu
- The Key Laboratory of Tumor Molecular Diagnosis, and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, 310014, China.
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Wang C, Shang C, Gai X, Song T, Han S, Liu Q, Zheng X. Sulfatase 2-Induced Cancer-Associated Fibroblasts Promote Hepatocellular Carcinoma Progression via Inhibition of Apoptosis and Induction of Epithelial-to-Mesenchymal Transition. Front Cell Dev Biol 2021; 9:631931. [PMID: 33889573 PMCID: PMC8056031 DOI: 10.3389/fcell.2021.631931] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 02/24/2021] [Indexed: 12/12/2022] Open
Abstract
Background Sulfatase 2 (SULF2) removes the 6-O-sulfate groups from heparan sulfate proteoglycans (HSPG) and consequently alters the binding sites for various signaling molecules. Here, we elucidated the role of SULF2 in the differentiation of hepatic stellate cells (HSCs) into carcinoma-associated fibroblasts (CAFs) in the hepatocellular carcinoma (HCC) microenvironment and the mechanism underlying CAF-mediated HCC growth. Methods The clinical relevance of SULF2 and CAFs was examined using in silico and immunohistochemical (IHC) analyses. Functional studies were performed to evaluate the role of SULF2 in the differentiation of HSCs into CAFs and elucidate the mechanism underlying CAF-mediated HCC growth. Mechanistic studies were performed using the chromatin immunoprecipitation, luciferase reporter, and RNA immunoprecipitation assays. The in vitro findings were verified using the nude HCC xenograft mouse model. Results The Cancer Genome Atlas (TCGA) database and IHC analyses revealed that the expression of CAF markers, which was positively correlated with that of SULF2 in the HCC tissues, predicted unfavorable postsurgical outcomes. Co-culturing HSCs with HCC cells expressing SULF2 promoted CAF differentiation. Additionally, CAFs repressed HCC cell apoptosis by activating the SDF-1/CXCR4/PI3K/AKT signaling pathway. Meanwhile, SULF2-induced CAFs promoted epithelial-to-mesenchymal transition (EMT) of HCC cells by modulating the SDF-1/CXCR4/OIP5-AS1/miR-153-3p/SNAI1 axis. Studies using HCC xenograft mouse models demonstrated that OIP5-AS1 induced EMT by upregulating SNAI1 and promoted HCC growth in vivo. Conclusion These data indicated that SULF2 secreted by the HCC cells induced the differentiation of HSCs into CAFs through the TGFβ1/SMAD3 signaling pathway. SULF2-induced CAFs attenuated HCC apoptosis by activating the SDF-1/CXCR4/PI3K/AKT signaling pathway and induced EMT through the SDF-1/CXCR4/OIP5-AS1/miR-153-3p/SNAI1 axis. This study revealed a novel mechanism involved in the crosstalk between HCC cells and CAFs in the tumor microenvironment, which can aid in the development of novel and efficient therapeutic strategies for primary liver cancer.
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Affiliation(s)
- Cong Wang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Chuzhi Shang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xiaohong Gai
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Tao Song
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shaoshan Han
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Qingguang Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xin Zheng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Wei L, Ling M, Yang S, Xie Y, Liu C, Yi W. Long noncoding RNA NBAT1 suppresses hepatocellular carcinoma progression via competitively associating with IGF2BP1 and decreasing c-Myc expression. Hum Cell 2021; 34:539-549. [PMID: 33387362 DOI: 10.1007/s13577-020-00464-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 11/20/2020] [Indexed: 12/16/2022]
Abstract
Hepatocellular Carcinoma (HCC) is the second leading cause of cancer-related deaths. Neuroblastoma associated transcript 1 (NBAT1) is a newly identified long noncoding RNA (lncRNA), which has been reported to play an important role in human cancers. However, the functional role and underlying mechanism of NBAT1 in HCC remains unclear. Here, we found that the expression of NBAT1 was decreased in HCC tissues and cells; as well, the decreased expression of NBAT1 was also associated with tumor size and clinical TNM stages. NBAT1 overexpression, both in vitro and in vivo studies, inhibited tumorigenesis through apoptosis augmentation and cell cycle blockade. Mechanistically, NBAT1 bound to IGF2BP1 and inhibited the interaction between IGF2BP1 and c-Myc mRNA, thus suppressing the stability of c-Myc mRNA. Collectively, NBAT1 is associated with HCC tumorigenesis and could be a therapeutic target for HCC treatment.
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Affiliation(s)
- Ling Wei
- Department of Gastroenterology, The Second Affiliated Hospital, Hainan Medical University, Haikou, 570311, Hainan, China
| | - Mengzhi Ling
- Department of Gastroenterology, Cadre sanatorium of Hainan & Geriatric hospital of Hainan (CSH), Haikou, 571100, Hainan, China
| | - Song Yang
- Emergency Department, Hainan Cancer Hospital, Haikou, 570312, China
| | - Yunqian Xie
- Department of Gastroenterology, The Second Affiliated Hospital, Hainan Medical University, Haikou, 570311, Hainan, China
| | - Changjiang Liu
- Department of Gastroenterology, The Second Affiliated Hospital, Hainan Medical University, Haikou, 570311, Hainan, China
| | - Wenyi Yi
- General Department, The Second Affiliated Hospital, Hainan Medical University, No.48, Baishuitang Road, Haikou, 570311, Hainan, China.
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Zhou Y, Huang Y, Hu K, Zhang Z, Yang J, Wang Z. HIF1A activates the transcription of lncRNA RAET1K to modulate hypoxia-induced glycolysis in hepatocellular carcinoma cells via miR-100-5p. Cell Death Dis 2020; 11:176. [PMID: 32152275 PMCID: PMC7062743 DOI: 10.1038/s41419-020-2366-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 02/17/2020] [Accepted: 02/18/2020] [Indexed: 12/30/2022]
Abstract
Hepatocellular carcinoma (HCC) remains the primary cause of cancer-related death. Metabolic change is the major characteristic of cancer. The present study attempted to investigate the regulatory mechanisms of HCC energy metabolism from the perspective of noncoding RNA regulation of HIF1A and LDHA. The expression of miR-100-5p expression was significantly suppressed in HCC tissue samples and HCC cell lines under 1% O2-induced hypoxia. miR-100-5p overexpression significantly suppressed hypoxia-induced increases in lactate concentration and glucose uptake. Exposure to 1% O2 induced HIF1A protein and reduced miR-100-5p expression, while HIF1A silencing dramatically rescued miR-100-5p expression upon 1% O2 exposure. In addition, 1% O2-induced increases in lactate concentration and glucose uptake were also suppressed by HIF1A silencing. Next, by analyzing available data in TCGA, we found that lncRNA RAET1K was correlated with HIF1A and miR-100-5p.LncRNA RAET1K could downregulate the expression of miR-100-5p by acting as a sponge, while HIF1A bound the lncRNA RAET1K promoter region to activate its transcription. LncRNA RAET1K silencing significantly suppressed HCC cell proliferation and invasion and also suppressed hypoxia-induced increases in lactate concentration and glucose uptake, while miR-100-5p inhibition reversed the effects of lncRNA RAET1K silencing on hypoxia-induced glycolysis in HCC cells. Finally, the expression of HIF1A, lncRNA RAET1K, and LDHA was upregulated in HCC tissue specimens; the expression of miR-100-5p was negatively related to HIF1A, lncRNA RAET1K, and LDHA; and HIF1A, lncRNA RAET1K, and LDHA were positively correlated with each other. In conclusion, the HIF1A/lncRNA RAET1K/miR-100-5p axis modulates hypoxia-induced glycolysis in HCC cells and might affect HCC progression.
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Affiliation(s)
- Yufan Zhou
- Department of Hepatobiliary Surgery, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yun Huang
- Department of Hepatobiliary Surgery, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Kuan Hu
- Department of Hepatobiliary Surgery, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Zeyu Zhang
- Department of Hepatobiliary Surgery, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Jiajin Yang
- Department of Hepatobiliary Surgery, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Zhiming Wang
- Department of Hepatobiliary Surgery, Xiangya Hospital, Central South University, Changsha, 410008, China.
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Zhang S, Song X. Long non-coding RNA SNHG1 promotes cell proliferation and invasion of hepatocellular carcinoma by acting as a molecular sponge to modulate miR-195. Arch Med Sci 2020; 16:386-394. [PMID: 32190150 PMCID: PMC7069425 DOI: 10.5114/aoms.2019.81311] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 12/09/2018] [Indexed: 01/22/2023] Open
Abstract
INTRODUCTION Although long non-coding RNA SNHG1 (lncRNA SNHG1) action on cell proliferation and invasion of hepatocellular carcinoma (HCC) cells has been reported, the effects of lncRNA SNHG1 on migration of HCC cells and the mechanisms are still unclear. The present study aimed to investigate the influence of lncRNA SNHG1 on metastasis in HCC cells and the possible mechanisms underlying this phenotype. MATERIAL AND METHODS Expression of lncRNA SNHG1 and miR-195 was determined using qRT-PCR in both HCC cell lines Huh7 and HepG2. Si-RNA was used to silence SNHG1 and miR-195 inhibitor was used to inhibit expression of miR-195. Luciferase reporter assay was conducted to confirm whether miR-195 was the direct binding target of SNHG1. RESULTS lncRNA SNHG1 was significantly up-regulated and miR-195 was significantly down-regulated in HCC cell lines. When transfected with si-SNHG1, migration and invasion of HCC cells, as well as expression of astrocyte elevated gene 1 (AEG-1) protein, were significantly inhibited compared with the control cells. Results of dual luciferase reporter assay showed that lncRNA SNHG1 acted as an endogenous sponge of miR-195. On the other hand, the expression of miR-195 in tumor tissue was much lower than that of miR-195 in the corresponding normal tissue. Furthermore, the correlation analysis showed a strong negative relationship between lncRNA SNHG1 and miR-195 expression in HCC tissues. CONCLUSIONS SNHG1 may promote cell invasion and migration in HCC cells by sponging miR-195. These results can provide deeper understanding of SNHG1 in hepatocellular cancer and give new potential targets for treatment of HCC.
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Affiliation(s)
- Shuai Zhang
- Department of Radiation Oncology, Hainan General Hospital, Haikou, China
| | - Xiaoding Song
- Clinical Laboratory, Hainan General Hospital, Haikou, China
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Metformin Protects against Oxidative Stress Injury Induced by Ischemia/Reperfusion via Regulation of the lncRNA-H19/miR-148a-3p/Rock2 Axis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:8768327. [PMID: 31934270 PMCID: PMC6942897 DOI: 10.1155/2019/8768327] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 11/01/2019] [Indexed: 12/11/2022]
Abstract
Previous studies have shown that metformin not only is a hypoglycemic agent but also has neuroprotective effects. However, the mechanism of action of metformin in ischemic stroke is unclear. Oxidative stress is an important factor in the pathogenesis of cerebral ischemia-reperfusion injury. It has been reported that metformin is associated with stroke risk in the clinical population. This study is aimed at investigating the effect and mechanism of metformin in an experimental model of oxidative stress induced by ischemia/reperfusion (I/R) in vivo and oxygen glucose deprivation/reperfusion (OGD/R) in vitro. Metformin (100, 200, and 300 mg/kg) was administered intraperitoneally immediately after induction of cerebral ischemia. The indicators of oxidative stress selected were antioxidant enzyme activities of catalase, malondialdehyde (MDA), nitric oxide (NO), superoxide dismutase (SOD), and glutathione peroxidation enzyme (GSHPx). First, we demonstrated that metformin can significantly alleviate acute and chronic cerebral I/R injury and it has a strong regulatory effect on stroke-induced oxidative stress. It can reduce the elevated activities of MDA and NO and increase the levels of GSHPx and SOD in the cerebrum of mice and N2a cells exposed to I/R. Furthermore, real-time PCR and western blot were used to detect the expression of long noncoding RNA H19 (lncRNA-H19), microRNA-148a-3p (miR-148a-3p), and Rho-associated protein kinase 2 (Rock2). The direct interaction of lncRNA-H19, miR-148a-3p, and Rock2 was tested using a dual luciferase reporter assay. lncRNA-H19 altered OGD/R-induced oxidative stress by modulating miR-148a-3p to increase Rock2 expression. The expression of lncRNA-H19 and Rock2 could be downregulated with metformin in vivo and in vitro. In conclusion, our study confirmed that metformin exerts neuroprotective effects by regulating ischemic stroke-induced oxidative stress injury via the lncRNA-H19/miR-148a-3p/Rock2 axis. These results provide new evidence that metformin may represent a potential treatment for stroke-related brain injury.
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Wang D, Du X, Bai T, Chen M, Chen J, Liu J, Li L, Li H, Zhang C. Decreased Expression of Long Non-Coding RNA GMDS Divergent Transcript (GMDS-DT) is a Potential Biomarker for Poor Prognosis of Hepatocellular Carcinoma. Med Sci Monit 2019; 25:6221-6229. [PMID: 31423008 PMCID: PMC6711261 DOI: 10.12659/msm.917663] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Background Increasing evidence suggests that long non-coding RNA (lncRNA) is closely related to the development of cancer. The present study investigated the potential predictive value of lncRNA GMDS divergent transcript (GMDS-DT) in the prognosis of patients with hepatocellular carcinoma (HCC) after hepatectomy. Material/Methods GMDS-DT was acquired by microarray data in 3 pairs of M1 and M2 macrophage duplicate samples. Real-time polymerase chain reaction (PCR) was performed to evaluate expression levels of GMDS-DT in liver cancer relative to normal tissue of 198 patients. The significance of GMDS-DT in prognosis after hepatectomy was examined via Kaplan-Meier test and Cox regression analysis. Results The expression of GMDS-DT in liver cancer tissue was significantly lower than that in adjacent normal liver tissue (P<0.001), and was significantly associated with drinking history and metastasis (both P<0.05). The Kaplan-Meier test suggested that patients with lower expression levels of GMDS-DT in liver cancer tissue had significantly shorter disease-free survival and overall survival times after hepatectomy (P=0.028 and P=0.003, respectively). Cox regression analysis further indicated that GMDS-DT was an independent risk factor for disease-free survival and overall survival times of patients after hepatectomy (P=0.015 and P=0.001, respectively). Conclusions LncRNA GMDS-DT might be a potential biomarker for the prognosis of patients with liver cancer after hepatectomy.
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Affiliation(s)
- Duo Wang
- Department of Ultrasound, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Xiufang Du
- Department of Experimental Research, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Tao Bai
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Miao Chen
- Department of Ultrasound, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Jie Chen
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Junjie Liu
- Department of Ultrasound, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Lequn Li
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Hang Li
- Department of Ultrasound, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Chunyan Zhang
- Department of Experimental Research, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China (mainland)
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Yu Z, Zhao H, Feng X, Li H, Qiu C, Yi X, Tang H, Zhang J. Long Non-coding RNA FENDRR Acts as a miR-423-5p Sponge to Suppress the Treg-Mediated Immune Escape of Hepatocellular Carcinoma Cells. MOLECULAR THERAPY-NUCLEIC ACIDS 2019; 17:516-529. [PMID: 31351327 PMCID: PMC6661302 DOI: 10.1016/j.omtn.2019.05.027] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/30/2019] [Accepted: 05/31/2019] [Indexed: 12/15/2022]
Abstract
Long non-coding RNAs (lncRNAs) have been known to partake in the development and the immune escape of hepatocellular carcinoma (HCC). The initial microarray analysis of GSE115018 expression profile revealed differentially expressed lncRNA fetal-lethal non-coding developmental regulatory RNA (FENDRR) in HCC. Therefore, this study’s main purpose was to explore the mechanism of tumor suppressor lncRNA FENDRR in regulating the immune escape of HCC cells. Notably, it was further validated through this study that lncRNA FENDRR competitively bound to microRNA-423-5p (miR-423-5p), and miR-423-5p specifically targeted growth arrest and DNA-damage-inducible beta protein (GADD45B). The effects that lncRNA FENDRR and miR-423-5p have on the cell proliferation and apoptosis, the immune capacity of regulatory T cells (Tregs), and the tumorigenicity of HCC cells were examined through overexpressing or the knocking down of lncRNA FENDRR and miR-423-5p both in vitro and in vivo. Subsequently, lncRNA FENDRR and GADD45B were revealed to have poor expressions in HCC. Meanwhile, miR-423-5p was highly expressed in HCC. Importantly, overexpressed lncRNA FENDRR and downregulated miR-423-5p diminished cell proliferation and tumorigenicity, and promoted apoptosis in HCC cells, thus regulating the immune escape of HCC mediated by Tregs. Taken conjointly, lncRNA FENDRR inhibited the Treg-mediated immune escape of HCC cells by upregulating GADD45B by sponging miR-423-5p.
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Affiliation(s)
- Zhenyu Yu
- Department of Hepatic Surgery, Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, Guangdong, P. R. China
| | - Hui Zhao
- Department of Hepatic Surgery, Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, Guangdong, P. R. China
| | - Xiao Feng
- Department of Hepatic Surgery, Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, Guangdong, P. R. China
| | - Haibo Li
- Department of Hepatic Surgery, Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, Guangdong, P. R. China
| | - Chunhui Qiu
- Department of Hepatic Surgery, Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, Guangdong, P. R. China
| | - Xiaomeng Yi
- Surgical Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, Guangdong, P. R. China.
| | - Hui Tang
- Department of Hepatic Surgery, Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, Guangdong, P. R. China.
| | - Jianwen Zhang
- Department of Hepatic Surgery, Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, Guangdong, P. R. China.
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Liu Y, Wang D, Li Y, Yan S, Dang H, Yue H, Ling J, Chen F, Zhao Y, Gou L, Tang P, Huang A, Tang H. Long noncoding RNA CCAT2 promotes hepatocellular carcinoma proliferation and metastasis through up-regulation of NDRG1. Exp Cell Res 2019; 379:19-29. [PMID: 30922920 DOI: 10.1016/j.yexcr.2019.03.029] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 03/11/2019] [Accepted: 03/22/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Emerging studies demonstrate that long noncoding RNAs (lncRNAs) play crucial roles in hepatocarcinogenesis through various mechanisms. LncRNA CCAT2 was a newly discovered lncRNA and amplified in several cancers. However, the mechanisms involved in function of CCAT2 in hepatocellular carcinoma (HCC) remain to be explored. METHODS CCAT2 expressions in HCC tissues and cell lines were measured by RT-qPCR. MTS assay, colony formation assay, wound-healing assay and transwell assay were used to explore the biological functions of CCAT2 on HCC cells proliferation and metastasis. Experiments in vivo were carried out to confirm these effects. The underlying mechanisms were analyzed by western blot and dual-luciferase reporter assay. RESULTS In this study, we found that CCAT2 were significantly elevated in HCC tissues and cell lines, and it promoted HCC cells proliferation and metastasis both in vitro and in vivo. Additionally, we identified that NDRG1 was a downstream target of CCAT2. Meanwhile, depletion of CCAT2 inhibited cellular proliferation and metastasis behaviors induced by NDRG1- overexpression. Analysis of mechanism underlying these effects revealed that CCAT2 increased the expression of NDRG1 by enhancing its promoter activity. Furthermore, the active region between CCAT2 and NDRG1 promoter was confirmed by dual-luciferase reporter assay. CONCLUSIONS All these observations demonstrate that CCAT2 acts as an oncogene by up-regulating NDRG1, which may have the potential to be used as a promising prognostic biomarker and therapeutic target for HCC.
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Affiliation(s)
- Yuyang Liu
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China; Department of Clinical Laboratory, The Sixth People's Hospital of Chengdu, Chengdu, Sichuan, China.
| | - Dan Wang
- Department of Clinical Laboratory, The People's Hospital of Rongchang, Chongqing, China.
| | - Yongguo Li
- Department of Forensic Medicine, Chongqing Medical University, Chongqing, China.
| | - Shaoying Yan
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
| | - Hao Dang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
| | - Huan Yue
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
| | - Jiaji Ling
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
| | - Fengjiao Chen
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
| | - Yannan Zhao
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
| | - Luxia Gou
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
| | - Ping Tang
- Department of Otorhinolaryngology Head and Neck Surgery, The Third Hospital of Mianyang, SiChuan Mental Health Center, China.
| | - Ailong Huang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
| | - Hua Tang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
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11
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Zheng YF, Zhang XY, Bu YZ. LINC01133 aggravates the progression of hepatocellular carcinoma by activating the PI3K/AKT pathway. J Cell Biochem 2018; 120:4172-4179. [PMID: 30548306 DOI: 10.1002/jcb.27704] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 08/27/2018] [Indexed: 01/01/2023]
Abstract
LncRNAs exhibit crucial roles in various pathological diseases, including hepatocellular carcinoma (HCC). Therefore, it is significant to recognize the dysregulated lncRNAs in HCC progression. Recently, LINC01133 has been identified in several tumors. However, the biological role of LINC01133 in HCC remains poorly understood. Currently, we focused on the function of LINC01133 in HCC development. We observed that LINC01133 was significantly increased in HCC cells including HepG2, Hep3B, MHCC-97L, SK-Hep-1, and MHCC-97H cells compared with the normal human liver cell line HL-7702. In addition, PI3K/AKT signaling was highly activated in HCC cells. Knockdown of LINC01133 was able to inhibit HCC cell proliferation, cell colony formation, cell apoptosis, and blocked cell cycle arrest in the G1 phase. For another, downregulation of LINC01133 repressed HCC cell migration and invasion. Subsequently, the PI3K/AKT signaling pathway was strongly suppressed by silence of LINC01133 in Hep3B and HepG2 cells. Then, in vivo tumor xenografts models were established using Hep3B cells to explore the function of LINC01133 in HCC progression. Consistently, our study indicated that knockdown of LINC01133 dramatically repressed HCC tumor progression through targeting the PI3K/AKT pathway in vivo. Taken these together, we revealed that LINC01133 contributed to HCC progression by activating the PI3K/AKT pathway.
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Affiliation(s)
- Yong-Fa Zheng
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xiao-Yu Zhang
- Division of Gastrointestinal Surgery, Department of General Surgery, Huai'an Second People's Hospital and The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, China
| | - Yan-Zhi Bu
- Department of General Surgery, Lianshui County People's Hospital, Huai'an, China
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12
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Zhang L, Wang L, Wang Y, Chen T, Liu R, Yang W, Liu Q, Tu K. LncRNA KTN1-AS1 promotes tumor growth of hepatocellular carcinoma by targeting miR-23c/ERBB2IP axis. Biomed Pharmacother 2018; 109:1140-1147. [PMID: 30551364 DOI: 10.1016/j.biopha.2018.10.105] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 10/18/2018] [Accepted: 10/20/2018] [Indexed: 12/11/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are critical regulators in the tumorigenesis and metastasis of hepatocellular carcinoma (HCC). LncRNA KTN1 antisense RNA 1 (KTN1-AS1) has been reported to play an important role in colorectal cancer and correlates with unfavorable clinical outcomes of head and neck squamous cell carcinoma. However, the clinical significance and functional role of KTN1-AS1 in HCC are still unclear. Here, we found that KTN1-AS1 was a highly expressed lncRNA in HCC according to public available databases and our HCC cohort. Further analyses revealed that higher expression of KTN1-AS1 was observed in HCC tissues with large tumor size, high tumor grade and advanced TNM stage. Analysis of survival data indicated that high KTN1-AS1 expression was prominently correlated with poor clinical outcomes of HCC patients. Functionally, KTN1-AS1 knockdown suppressed cell proliferation and colony formation, and increased apoptosis of SMMC-7721 cells in vitro. Furthermore, silencing of KTN1-AS1 restrained tumor growth of HCC in vivo. Conversely, forced expression of KTN1-AS1 facilitated Huh7 cell proliferation and inhibited apoptosis. Mechanistically, KTN1-AS1 inversely regulated miR-23c abundance in HCC cells. Further evidence supported that KTN1-AS1 acted as a competing endogenous RNA (ceRNA) by directly sponging miR-23c in HCC cells. Interestingly, erbb2 interacting protein (ERBB2IP), a known target of miR-23c, was positively regulated by KTN1-AS1 and its restoration reversed KTN1-AS1 knockdown attenuated HCC cell growth. To conclude, our study sheds light on the novel function and underlying mechanism of KTN1-AS1 in HCC, which may accelerate the development of cancer therapy.
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Affiliation(s)
- Lei Zhang
- Department of Geriatric Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi Province, 710061, China
| | - Liang Wang
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi Province, 710061, China
| | - Yufeng Wang
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi Province, 710061, China
| | - Tianxiang Chen
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi Province, 710061, China
| | - Runkun Liu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi Province, 710061, China
| | - Wei Yang
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi Province, 710061, China
| | - Qingguang Liu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi Province, 710061, China.
| | - Kangsheng Tu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi Province, 710061, China.
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13
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Yao Z, Xiong Z, Li R, Liang H, Jia C, Deng M. Long non-coding RNA NRON is downregulated in HCC and suppresses tumour cell proliferation and metastasis. Biomed Pharmacother 2018; 104:102-109. [PMID: 29772429 DOI: 10.1016/j.biopha.2018.05.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 04/14/2018] [Accepted: 05/02/2018] [Indexed: 12/13/2022] Open
Abstract
Dysregulation of long non-coding RNAs is a newly identified mechanism for tumour progression. Previous studies have suggested that the nuclear factor of activated T cells (NFAT) gene plays a very important role in cancer growth and metastasis. However, lncNRON is a newly identified repressor of NFAT, and its function is largely unknown, especially in hepatocellular carcinoma (HCC). Therefore, the expression levels of lncNRON in 215 pairs of HCC tissue were evaluated by qRT-PCR, and its relationship to clinicopathological parameters, recurrence, and survival was analysed. Furthermore, stably overexpressing lncNRON cell lines were constructed and evaluated for cell phenotype. Finally, we detected epithelial-to-mesenchymal transition (EMT) proteins to determine the underlying mechanism involved in lncNRON function. We observed that lncNRON was downregulated in HCC tumour tissues; low lncNRON expression was associated with poor tumour differentiation and the presence of vascular tumour thrombus, which tended to result in poor clinical outcomes, as demonstrated by the recurrence rate and survival curves. Functional analysis showed that lncNRON overexpression impaired colony formation and cell viability and inhibited cell migration and invasion. A study using tumour-bearing mice showed that lncNRON markedly limited tumour growth and lung metastasis in vivo. Importantly, western blot analysis revealed that the expression of the EMT-related epithelial marker, E-cadherin, increased, whereas the expression of mesenchymal markers N-cadherin, snail, and vimentin was attenuated by lncNRON overexpression in HCC cells. Therefore, lower lncNRON expression indicates a poorer clinical outcome in HCC. LncNRON overexpression can suppress HCC growth and metastasis via inhibiting the EMT, and lncNRON may function as a new HCC prognostic marker.
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Affiliation(s)
- Zhicheng Yao
- Department of General Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510000, PR China
| | - Zhiyong Xiong
- Department of General Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510000, PR China
| | - Ruixi Li
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510000, PR China
| | - Hao Liang
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510000, PR China
| | - Changchang Jia
- Department of Cell-gene Therapy Translational Medicine Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510000, PR China.
| | - Meihai Deng
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510000, PR China.
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14
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Zhao NN, Wang C, Lai CC, Cheng SJ, Yan J, Hong ZX, Yu LX, Zhu ZY, Zhang PR, Wang ZH, Wang XL, Zhang SG, Yang PH. Downregulation of BRAF-activated non-protein coding RNA in patients with hepatitis B virus-associated hepatocellular carcinoma. Oncol Lett 2018; 15:7794-7798. [PMID: 29725471 PMCID: PMC5920385 DOI: 10.3892/ol.2018.8327] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 02/03/2017] [Indexed: 02/06/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) have been investigated as a novel class of regulators of cellular processes, including cell growth, apoptosis and carcinogenesis. lncRNA BRAF-activated non-protein coding RNA (BANCR) has recently been revealed to be involved in tumorigenesis of numerous types of cancer, including papillary thyroid carcinoma, melanoma, non-small cell lung cancer and colorectal cancer. However, the expression profiles and biological relevance of lncRNA BANCR in hepatocellular carcinoma (HCC) has not yet been reported. In the present study, the expression level of BANCR in tumor tissues and para-cancerous tissues was determined by reverse transcription-quantitative polymerase chain reaction in patients with hepatitis B virus (HBV)-associated HCC, and its association with clinicopathological characteristics of patients was analyzed. The results demonstrated that the expression level of BANCR was significantly reduced in tumor tissues in comparison with in para-cancerous tissues (P<0.001). Furthermore, the present study demonstrated that BANCR expression level was closely associated with serum α-fetoprotein levels (P<0.01) and HCC tumor number (P<0.05). To the best of our knowledge, these results revealed for the first time that BANCR downregulated in patients with HBV-associated HCC and BANCR expression level may be a potential valuable diagnosis and therapeutic biomarker in HCC.
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Affiliation(s)
- Na-Na Zhao
- Department of Hepatobiliary Surgery, Beijing 302 Hospital, Beijing 100039, P.R. China
| | - Cheng Wang
- Department of Orthopedics, Beijing 307 Hospital Affiliated to Academy of Medical Sciences, Beijing 100071, P.R. China
| | - Cheng-Cai Lai
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing 100071, P.R. China
| | - Si-Jie Cheng
- Department of Hepatobiliary Surgery, Beijing 302 Hospital, Beijing 100039, P.R. China
| | - Jin Yan
- Department of Hepatobiliary Surgery, Beijing 302 Hospital, Beijing 100039, P.R. China
| | - Zhi-Xian Hong
- Department of Hepatobiliary Surgery, Beijing 302 Hospital, Beijing 100039, P.R. China
| | - Lin-Xiang Yu
- Department of Hepatobiliary Surgery, Beijing 302 Hospital, Beijing 100039, P.R. China
| | - Zhen-Yu Zhu
- Department of Hepatobiliary Surgery, Beijing 302 Hospital, Beijing 100039, P.R. China
| | - Pei-Rui Zhang
- Department of Hepatobiliary Surgery, Beijing 302 Hospital, Beijing 100039, P.R. China
| | - Zhao-Hai Wang
- Department of Hepatobiliary Surgery, Beijing 302 Hospital, Beijing 100039, P.R. China
| | - Xi-Liang Wang
- Department of Orthopedics, Beijing 307 Hospital Affiliated to Academy of Medical Sciences, Beijing 100071, P.R. China
| | - Shao-Geng Zhang
- Department of Hepatobiliary Surgery, Beijing 302 Hospital, Beijing 100039, P.R. China
| | - Peng-Hui Yang
- Department of Hepatobiliary Surgery, Beijing 302 Hospital, Beijing 100039, P.R. China.,Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing 100071, P.R. China
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15
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Mehra M, Chauhan R. Long Noncoding RNAs as a Key Player in Hepatocellular Carcinoma. BIOMARKERS IN CANCER 2017; 9:1179299X17737301. [PMID: 29147078 PMCID: PMC5673005 DOI: 10.1177/1179299x17737301] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Indexed: 12/16/2022]
Abstract
Hepatocellular carcinoma (HCC) is a major malignancy in the liver and has emerged as one of the main cancers in the world with a high mortality rate. However, the molecular mechanisms of HCC are still poorly understood. Long noncoding RNAs (lncRNAs) have recently come to the forefront as functional non-protein-coding RNAs that are involved in a variety of cellular processes ranging from maintaining the structural integrity of chromosomes to gene expression regulation in a spatiotemporal manner. Many recent studies have reported the involvement of lncRNAs in HCC which has led to a better understanding of the underlying molecular mechanisms operating in HCC. Long noncoding RNAs have been shown to regulate development and progression of HCC, and thus, lncRNAs have both diagnostic and therapeutic potentials. In this review, we present an overview of the lncRNAs involved in different stages of HCC and their potential in clinical applications which have been studied so far.
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Affiliation(s)
- Mrigaya Mehra
- Studio of Computational Biology & Bioinformatics, Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology (CSIR-IHBT), Palampur, India
- Academy of Scientific & Innovative Research, Chennai, India
| | - Ranjit Chauhan
- Department of Hepatology, Loyola University Chicago, Chicago, IL, USA
- Molecular Virology and Hepatology Research Group, Division of BioMedical Sciences, Health Sciences Center, Memorial University, St John’s, Newfoundland and Labrador, Canada
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16
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Zheng C, Liu X, Chen L, Xu Z, Shao J. lncRNAs as prognostic molecular biomarkers in hepatocellular carcinoma: a systematic review and meta-analysis. Oncotarget 2017; 8:59638-59647. [PMID: 28938667 PMCID: PMC5601763 DOI: 10.18632/oncotarget.19559] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 07/12/2017] [Indexed: 01/08/2023] Open
Abstract
The latest studies have shown that long non-coding RNAs (lncRNAs) may be considered markers as their expression levels were abnormal in cancer and can be used as a molecular biomarker for the potential assessment of cancer prognosis. In this study, we aimed to assess the prognostic value of lncRNA as marker of patients with hepatocellular carcinoma. We performed a detailed search of the PubMed and Embase databases for articles on the prognostic value of various lncRNAs in HCC. We then carefully extracted the relevant data from the articles, and we used the meta-analysis method to analyze these results; heterogeneity and publication bias were also evaluated. With 40 associative studies included, we found that high expression of 27 types of lncRNA was associated with a poor prognosis in HCC patients, and low expression of 18 types of lncRNAs was associated with a worse prognosis. Patients with higher lncRNA expression had significantly poor overall survival (OS; pooled HR, 1.25; 95% confidence interval [CI], 1.03–1.52) as well as significantly poor recurrence-free survival (RFS; pooled HR, 1.66; 95% CI, 1.26–2.17). Overexpression of lncRNAs may not meaningfully predict disease-free survival (DFS; pooled HR, 1.04; 95% CI, 0.52–2.07; p = 0.91). Our meta-analysis demonstrated that lncRNAs may serve as predictive biomarkers for cancer prognosis.
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Affiliation(s)
- Chuqian Zheng
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China.,Jiangxi Province Key Laboratory of Molecular Medicine, Nanchang, 330000, China.,Jiangxi Province Engineering Research Center of Hepatobiliary Disease, Nanchang, 330000, China
| | - Xiuxia Liu
- Jiangxi Province Key Laboratory of Molecular Medicine, Nanchang, 330000, China
| | - Leifeng Chen
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China.,Jiangxi Province Key Laboratory of Molecular Medicine, Nanchang, 330000, China.,Jiangxi Province Engineering Research Center of Hepatobiliary Disease, Nanchang, 330000, China
| | - Zheng Xu
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China.,Jiangxi Province Key Laboratory of Molecular Medicine, Nanchang, 330000, China.,Jiangxi Province Engineering Research Center of Hepatobiliary Disease, Nanchang, 330000, China
| | - Jianghua Shao
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China.,Jiangxi Province Key Laboratory of Molecular Medicine, Nanchang, 330000, China.,Jiangxi Province Engineering Research Center of Hepatobiliary Disease, Nanchang, 330000, China
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17
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Cao SW, Huang JL, Chen J, Hu YW, Hu XM, Ren TY, Zheng SH, Lin JD, Tang J, Zheng L, Wang Q. Long non-coding RNA UBE2CP3 promotes tumor metastasis by inducing epithelial-mesenchymal transition in hepatocellular carcinoma. Oncotarget 2017; 8:65370-65385. [PMID: 29029437 PMCID: PMC5630337 DOI: 10.18632/oncotarget.18524] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 06/02/2017] [Indexed: 01/17/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a highly aggressive, solid malignancy that has a poor prognosis. Long non-coding RNAs (lncRNAs) have been found to be dysregulated in various cancers, including HCC. However, the molecular mechanism involving lncRNAs in HCC remains largely unknown. In this study, lncRNAs differentially expressed between HCC and corresponding non-cancerous tissue were identified by microarray analysis. A specific differentially expressed lncRNA UBE2CP3 (ubiquitin conjugating enzyme E2 C pseudogene 3) was identified. LncRNA UBE2CP3 was frequently up-regulated in HCC samples as assessed by quantitative real-time polymerase chain reaction (qRT-PCR) and in situ hybridization (ISH) experiments. Clinical data showed that high levels of lncRNA UBE2CP3 were correlated with poor prognosis in HCC patients. Functional studies demonstrated that over-expression of lncRNA UBE2CP3 promoted cell invasion and migration in vitro and in vivo. Mechanistically, enhanced expression of lncRNA UBE2CP3 increased the expression of Snail1 and N-cadherin, but decreased the expression of E-cadherin, thus promoting the process of epithelial to mesenchymal transition (EMT) and finally inducing cell invasion and migration. Furthermore, serum levels of lncRNA UBE2CP3 were increased in HCC patients and decreased after surgery. Our results suggest that lncRNA UBE2CP3 promotes the metastasis of HCC and that serum lncRNA UBE2CP3 may be a new biomarker for the diagnosis of HCC.
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Affiliation(s)
- Shun-Wang Cao
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jin-Lan Huang
- Department of Clinical Laboratory, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Jing Chen
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yan-Wei Hu
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiu-Mei Hu
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Ting-Yu Ren
- Department of Clinical Laboratory Medicine Center, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, China
| | - Shi-Hao Zheng
- Department of Neurosurgery, Fujian Provincial Hospital, Fuzhou, Fujian, China
| | - Jin-Duan Lin
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jing Tang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Lei Zheng
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Qian Wang
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
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18
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Xiao C, Wang C, Cheng S, Lai C, Zhang P, Wang Z, Zhang T, Zhang S, Liu R. The significance of low levels of LINC RP1130-1 expression in human hepatocellular carcinoma. Biosci Trends 2016; 10:378-385. [PMID: 27773892 DOI: 10.5582/bst.2016.01123] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Hepatocellular carcinoma (HCC) is the most common neoplasms. Little progress has been made in the diagnosis and treatment of HCC and its prognosis remains poor. Studies have increasingly found that long non-coding RNA (lncRNA) is involved in the regulation of the occurrence and development of HCC. To investigate the diagnostic and prognostic value of lncRNA in HCC, the current study examined 25 lncRNAs with differing levels of expression (according to the fold change) in microarray databases. Expression of LINC RP1130-1 was found to be markedly down-regulated in 51 HCC tissues compared to matching adjacent non-tumor liver tissues. The pattern of expression and clinical significance of LINC RP1130-1 were examined in HCC. The area under the receiver operating characteristic (ROC) curve was 0.74 for LINC RP1130-1. The expression of LINC RP1130-1 was associated with clinical stage, the number of tumors, portal vein tumor thrombus (PVTT), and microvascular invasion (MVI). More importantly, patients with a low level of LINC RP1130-1 expression had a shorter recurrence-free survival (RFS) (n = 51, p < 0.05) than those with a high level of LINC RP1130-1 expression. Taken together, these findings indicate that a low level of LINC RP1130-1 expression in patients with HCC may be a powerful tumor biomarker, with potential clinical use in diagnosing and predicting the prognosis for patients with HCC.
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Affiliation(s)
- Chaohui Xiao
- Departments of Surgical Oncology, Chinese People's Liberation Army (PLA) General Hospital
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