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Chaohui Xiao, Cheng Wang, Sijie Cheng, Chengcai Lai, Peirui Zhang, Zizheng Wang, Tao Zhang, Shaogeng Zhang, Rong Liu
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...
October 24, 2016: Bioscience Trends
Li Zhang, Zhihong Yang, Jocelyn Trottier, Olivier Barbier, Li Wang
: Bile acids (BAs) play critical physiological functions in cholesterol homeostasis and deregulation of BA metabolism causes cholestatic liver injury. Maternally expressed gene 3 (MEG3) was recently shown as a potential tumor suppressor, however its basic hepatic function remains elusive. Using RNA pull-down with biotin-labeled sense or anti-sense MEG3RNA followed by mass spectrometry, we identified RNA binding protein polypyrimidine tract-binding protein 1 (PTBP1) as a MEG3 interaction protein and validated their interaction by RNA immunoprecipitation (RIP)...
October 22, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Jianjun Niu, Yong Lin, Pingguo Liu, Yiwen Yu, Chenghao Su, Xiaomin Wang
Long non-coding RNAs are involved with development and progression of cancer, and the advance of microarray technology allows the researchers to investigate the complete expression profile of lncRNA in various kinds of sample. We enrolled 5 male primary HCC cases with chronic HBV infection and the HCC and normal tissues have been obtained during the resection surgery. After total RNA extraction, the lncRNA microarray analysis was conducted to determine the lncRNA and mRNA expression signals. 612 lncRNAs and 1,064 mRNAs were significantly up-regulated in HCC tissue while 656 lncRNAs and 1,532 mRNAs were down-regulated in HCC tissues...
October 18, 2016: Oncotarget
Jinhui Wu, Dongshuang Wang
Lung cancer is the most common solid tumor and the leading cause of cancer-related death worldwide. Non-small cell lung cancer (NSCLC) represents the major histological subtype and accounts for about 80 % cases of lung cancer cases. Recently, lncRNA lncTCF7 was identified, which is highly expressed in hepatocellular carcinoma (HCC) tumors and liver cancer stem cells (CSCs). However, the role of lnTCF7 in NSCLC remains largely unknown. In this study, Gain- and loss-of-function studies demonstrated the critical role of lncTCF7 in promoting invasion and self-renewal in NSCLC cells...
October 20, 2016: Human Cell
Yunzhen Gao, Gaoxiong Wang, Cuilin Zhang, Minjie Lin, Xiaolong Liu, Yongyi Zeng, Jingfeng Liu
Long non-coding RNAs (LncRNAs) have played very important roles in the malignancy behaviors of hepatocellular carcinoma (HCC). Linc-cdh4-2 (TCONS_00027978) is a novel LncRNA that has been identified in HCC tissues from our previous study. Overexpression of linc-cdh4-2 in HCC cell lines (SK-Hep-1 and Huh7) significantly decreases the migration and invasion abilities of these cells, while knockdown the expression of linc-cdh4-2 significantly increases the migration and invasion abilities. Interestingly, neither the over expression nor the knock down of linc-cdh4-2 could affect the viability and proliferation of HCC cells...
October 17, 2016: Biochemical and Biophysical Research Communications
Tian Lan, Lei Chang, Long Wu, Yufeng Yuan
Hepatocellular carcinoma (HCC) remains one of the most common types of cancer worldwide and prognosis remains poor. Previous studies have suggested that long non‑coding RNAs (lncRNAs) may be key regulators of tumor development and progression in HCC. It has been determined that 61‑72% of transcribed regions contain lncRNAs in the antisense orientation (aslncRNAs). However, the function of aslncRNAs in HCC remains to be elucidated. The present study investigated the function of the aslncRNA zinc finger E‑box binding homeobox 2 antisense RNA 1 (ZEB2‑AS1) in 40 HCC tissues and 5 different human HCC cell lines using reverse transcription‑quantitative polymerase chain reaction...
November 2016: Molecular Medicine Reports
Shuyao Tang, Gang Tan, Xian Jiang, Peng Han, Bo Zhai, Xuesong Dong, Haiquan Qiao, Hongchi Jiang, Xueying Sun
Sorafenib resistance remains a major obstacle for the effective treatment of hepatocellular carcinoma (HCC), and a number of miRNAs contribute to this resistance. However, the regulatory networks of miRNAs are very complex, thus inhibiting a single miRNA may sequentially activate other compensatory pathways. In the present study, we generated an artificial long non-coding RNA (AlncRNA), which simultaneously targets multiple miRNAs including miR-21, miR-153, miR-216a, miR-217, miR-494 and miR-10a-5p. These miRNAs have been shown to be upregulated in sorafenib-resistant cells and participate in the mechanisms underlying sorafenib resistance...
September 28, 2016: Oncotarget
Li-Juan Ding, Yan Li, Shu-Dong Wang, Xin-Sen Wang, Fang Fang, Wei-Yao Wang, Peng Lv, Dong-Hai Zhao, Feng Wei, Ling Qi
Hepatocellular carcinoma (HCC) is the most common subtype of liver malignancy, and it is characterized by poor prognosis because of cancer stem cell (CSC)-mediated high postsurgical recurrence rates. Thus, targeting CSCs, or HCC cells with CSC-like properties, is an effective strategy for HCC therapy. Here, using long noncoding RNA (lncRNA) microarray analysis, we identified a novel lncRNA termed lncCAMTA1 that is increased in both liver CSCs and HCC. High lncCAMTA1 expression in HCC indicates poor clinical outcome...
2016: International Journal of Molecular Sciences
Liye Cao, Quan Zhang, Shujie Cheng, Zhi Chen, Zhijuan Hua, Jihong Yang, Dan Liu, Na Cui
Cancer stem cells (CSCs) play important roles in cancer initiation, progression and metastasis. The aim of the present study was to identify the potential targets that may contribute to the generation of hepatocellular carcinoma stem cells (HCSCs) from hepatocellular carcinoma (HCC) cells. The RNA sequencing (RNA‑Seq) dataset GSE70537 was downloaded from the Gene Expression Omnibus (GEO) database. Raw RNA sequences were mapped to the GRCh37/hg19 genome based on TopHat and assembled through Cufflinks...
September 22, 2016: Oncology Reports
Jing Lv, Hong-Xia Fan, Xiao-Pei Zhao, Ping Lv, Jing-Yi Fan, Yi Zhang, Min Liu, Hua Tang
HBV infection has been reported to be closely associated with HCC development; however, the underlying mechanisms are unclear. Emerging evidence has indicated that long non-coding RNAs (lncRNAs) play important regulatory roles in the pathogenesis and progression of cancers. To investigate the important role and mechanism of lncRNAs in the progression of HBV-related HCC, we screened lncRNAs in HBV-positive and HBV-negative HCC tissues. We identified a novel lncRNA, lncRNA-Unigene56159, which is highly expressed in HBV-related HCC tissues, and further analysis showed that this lncRNA was induced by HBV in vitro...
September 3, 2016: Cancer Letters
Na Fu, Xuemin Niu, Yang Wang, Huijuan Du, Baoyu Wang, Jinghua Du, Ya Li, Rongqi Wang, Yuguo Zhang, Suxian Zhao, Dianxing Sun, Liang Qiao, Yuemin Nan
Long non-coding RNA (LncRNA)-activated by transforming growth factor-beta (LncRNA-ATB) is a key regulator of transforming growth factor-beta (TGF-β) signaling pathway, and is positively correlated with the development of liver cirrhosis and vascular invasion of hepatocellular carcinoma (HCC). However, the role of LncRNA-ATB in hepatitis C virus (HCV)-related liver fibrosis remains largely unknown. In the present study, we confirmed a high expression level of LncRNA-ATB in the liver tissues and plasma samples of patients with HCV-related hepatic fibrosis, and the plasma level of LncRNA-ATB was significantly correlated with liver fibrosis stages...
August 2016: Discovery Medicine
Hong-Lei Luo, Ming-de Huang, Jia-Ni Guo, Rui-Hua Fan, Xiao-Tian Xia, Jing-Dong He, Xiao-Fei Chen
Recent findings indicate that long noncoding RNAs (lncRNAs) were dysregulated in many kinds of tumors including esophageal squamous cell carcinoma (ESCC). LncRNA AFAP1-AS1 was found to be upregulated in hepatocellular carcinoma (HCC), lung cancer, colorectal cancer, esophageal adenocarcinoma (EAC), pancreatic ductal adenocarcinoma, and nasopharyngeal carcinoma, while its clinical value and potential function in ESCC are still unknown. Expression of AFAP1-AS1 was measured in 65 ESCC tissues and corresponding noncancerous tissues by quantitative real-time polymerase chain reaction, which revealed that AFAP1-AS1 expression was markedly elevated in ESCC tissues and significantly associated with advanced TNM stage (P = 0...
August 30, 2016: Cancer Medicine
Zhen Qu, Chun-Hui Yuan, Chang-Qing Yin, Qing Guan, Hao Chen, Fu-Bing Wang
Many long noncoding RNAs (lncRNAs) have been reported to be abnormally expressed in hepatocellular carcinoma (HCC), and may have the potential to serve as prognostic markers. In this study, a meta-analysis was conducted to systematically evaluate the prognostic value of various lncRNAs in HCC. Eligible literatures were systematically collected from PubMed, Embase, Web of Science, and Cochrane Library (up to December 30, 2015). The main outcomes including overall survival, relapse-free survival, and disease-free survival were analyzed...
2016: OncoTargets and Therapy
Xiao-Ting Zhu, Ji-Hang Yuan, Teng-Teng Zhu, Yang-Yang Li, Xiao-Yang Cheng
Long noncoding RNAs (lncRNAs) have critical roles in various pathophysiological processes, and are frequently dysregulated in many diseases, particular in cancer. LncRNA GPC3 antisense transcript 1 (GPC3-AS1) has been reported to be a potential biomarker for hepatocellular carcinoma (HCC) screening. However, the exact biological functions of GPC3-AS1 in HCC, and its roles and regulation mechanisms on GPC3 are still unknown. In this study, we observed significant upregulation of GPC3-AS1 in HCC. Increased expression of GPC3-AS1 is associated with α-fetoprotein, tumour size, microvascular invasion, encapsulation, BCLC stage, and worse prognosis of HCC patients...
August 30, 2016: FEBS Journal
Nidhi Jariwala, Devanand Sarkar
Hepatocellular carcinoma (HCC) accounts for the second largest number of cancer related deaths globally with limited management options for the advanced disease. Although substantial research has identified molecular targets, with strong validation in pre-clinical in vivo studies, translation of therapeutics to clinics has shown modest success. In a recent manuscript in Hepatology, Zhou and Yang et al. unravel a novel p53 associated long non-coding RNA (PRAL) as a potential prognostic marker and molecular target in HCC...
August 2016: Annals of Translational Medicine
Zhen-Zhen Chen, Lan Huang, Ya-Hong Wu, Wen-Jie Zhai, Ping-Ping Zhu, Yan-Feng Gao
Liver cancer has a tendency to develop asymptomatically in patients, so most patients are diagnosed at a later stage. Accumulating evidence implicates that liver tumour-initiating cells (TICs) as being responsible for liver cancer initiation and recurrence. However, the molecular mechanism of liver TIC self-renewal is poorly understood. Here we discover that a long noncoding RNA (lncRNA) termed LncSox4 is highly expressed in hepatocellular carcinoma (HCC) tissues and in liver TICs. We find that LncSox4 is required for liver TIC self-renewal and tumour initiation...
2016: Nature Communications
Jiejun Shi, Jiangtu He, Jing Lin, Xin Sun, Fenyong Sun, Chao Ou, Cizhong Jiang
Aflatoxin is a natural potent carcinogen and a major cause of liver cancer. However, the molecular mechanisms of hepatocellular carcinogenesis remain largely unexplored. In this study, we profiled global gene expression in liver tissues of rats that developed hepatocellular carcinoma (HCC) from aflatoxin B1 (AFB1) administration and those that were AFB1-resistant, as well as rats without AFB1 exposure as a control. AFB1 exposure resulted in extensive perturbation in gene expression with different functions in HCC and AFB1 resistance (AR) samples...
2016: Scientific Reports
Peng Yuan, Weibin Cao, Quanling Zang, Guixin Li, Xiangfei Guo, Jianghe Fan
In this study, we firstly investigated the association among lncRNA MALAT1, HIF-1α and HIF-2α in hepatocellular carcinoma (HCC) cells. Then, we investigated the regulative effect of MALAT1 on multi-drug resistance (MDR) in HCC cells and the underlying mechanism. The results showed that MALAT1 was over two times higher in BEL-7402/5-FU cells than in BEL-7402 cells. It was HIF-2α, but not HIF-1α induced MALAT1 upregulation in HCC cells. Dual luciferase assay demonstrated that there were at least two binding sites of miR-26b in MALAT1...
September 23, 2016: Biochemical and Biophysical Research Communications
Jinyu Yu, Junqing Han, Jian Zhang, Guanzhen Li, Hui Liu, Xianping Cui, Yantian Xu, Tao Li, Juan Liu, Chuanxi Wang
Hepatocellular carcinoma (HCC) is the most common primary malignancy of the liver in adults worldwide. Several studies have demonstrated that long noncoding RNAs (lncRNAs) are involved in the development of various types of cancer, including HCC. These findings prompted us to examine the detectability of lncRNAs in blood samples from patients with HCC. In this study, we explored the expression levels of 31 cancer-related lncRNAs in sera from 71 HCC patients and 64 healthy individuals by reverse transcription and quantitative polymerase chain reaction (RT-qPCR)...
August 2016: Medicine (Baltimore)
Shengxian Yuan, Jie Wang, Yuan Yang, Jin Zhang, Hui Liu, Juanjuan Xiao, Qingguo Xu, Xinhui Huang, Bangde Xiang, Shaoliang Zhu, Le-Qun Li, Jingfeng Liu, Lei Liu, Wei-Ping Zhou
PURPOSE: The dismal outcome of hepatocellular carcinoma (HCC) is largely attributed to its early recurrence and venous metastases. We aimed to develop a metastasis-related model to predict HCC prognosis. EXPERIMENTAL DESIGN: Using microarrays, sequencing and RT-PCR, we measured the expression of mRNAs and lncRNAs in a training set of 94 well-defined low-risk (LRM) and high-risk metastatic (HRM) HCC patients from a Shanghai cohort. We refined a metastasis signature and established a corresponding model using logistic regression analysis...
July 22, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
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