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https://www.readbyqxmd.com/read/28343069/linc00152-promotes-cancer-progression-in-hepatitis-b-virus-associated-hepatocellular-carcinoma
#1
Xin Deng, Xiao Fang Zhao, Xing Qiu Liang, Ran Chen, Yi Feng Pan, Jian Liang
BACKGROUND: The X protein (HBx) plays as a key role in hepatocarcinogenesis associated with hepatitis B virus (HBV) infections. The study aimed to figure out the role of Linc00152 in hepatocellular carcinoma (HCC) and the association between the expression levels of Linc00152 and HBx. METHODS: QRT-PCR assays were applied to analyzed the expression levels of Linc00152 and HBx. Kaplan-Meier survival curve was performed to identify the association between LINC00152 and the over survival time (OS) in HCC patients...
June 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28338656/focal-adhesion-kinase-depletion-reduces-human-hepatocellular-carcinoma-growth-by-repressing-enhancer-of-zeste-homolog-2
#2
Daniela Gnani, Ilaria Romito, Simona Artuso, Marco Chierici, Cristiano De Stefanis, Nadia Panera, Annalisa Crudele, Sara Ceccarelli, Elena Carcarino, Valentina D'Oria, Manuela Porru, Ezio Giorda, Karin Ferrari, Luca Miele, Erica Villa, Clara Balsano, Diego Pasini, Cesare Furlanello, Franco Locatelli, Valerio Nobili, Rossella Rota, Carlo Leonetti, Anna Alisi
Hepatocellular carcinoma (HCC) is the most common type of liver cancer in humans. The focal adhesion tyrosine kinase (FAK) is often over-expressed in human HCC and FAK inhibition may reduce HCC cell invasiveness. However, the anti-oncogenic effect of FAK knockdown in HCC cells remains to be clarified. We found that FAK depletion in HCC cells reduced in vitro and in vivo tumorigenicity, by inducing G2/M arrest and apoptosis, decreasing anchorage-independent growth, and modulating the expression of several cancer-related genes...
May 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28292020/long-non-coding-rna-hnf1a-as1-promotes-hepatocellular-carcinoma-cell-proliferation-by-repressing-nkd1-and-p21-expression
#3
Cong Wang, Lin Mou, Hai-Xia Chai, Feng Wang, Yun-Zhi Yin, Xiao-Yu Zhang
Hepatocellular carcinoma (HCC) is one of the most common cancers worldwide. Recent evidences have demonstrated that long non-coding RNAs (lncRNAs) act as key regulators of tumor development and progression including HCC. In the study, we showed that the expression level of HNF1A-AS1 was up-regulated in HCC cell lines. Furthermore, CCK-8 cell proliferation assays and cell cycle analysis showed that HNF1A-AS1 over-expression facilitated HCC cell proliferation by promoting the cell proliferation and S-phase progression, whereas HNF1A-AS1 knockdown had the opposite effect...
May 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28282787/long-non-coding-rna-snhg20-predicts-a-poor-prognosis-for-hcc-and-promotes-cell-invasion-by-regulating-the-epithelial-to-mesenchymal-transition
#4
Jinxia Liu, Cuihua Lu, Mingbing Xiao, Feng Jiang, Lishuai Qu, Runzhou Ni
BACKGROUND: Recently, Accumulating evidence indicates that long noncoding RNAs (lncRNAs) have been shown to have critical regulatory roles in human tumor biology and development. However, the expression pattern and biological function of lncRNA small nucleolar RNA host gene 20 (SNHG20) in hepatocellular carcinoma (HCC) remains largely unknown. METHODS: The expression of SNHG20 in 96 paired HCC tissues and cell lines were detected by quantitative real-time PCR (qRT-PCR) analysis...
May 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27920552/the-relationship-between-the-expression-of-usp22-bmi1-and-ezh2-in-hepatocellular-carcinoma-and-their-impacts-on-prognosis
#5
Run Zhai, Fang Tang, Jianhua Gong, Jing Zhang, Biao Lei, Bo Li, Yangchao Wei, Xingsi Liang, Bo Tang, Songqing He
Recent studies have shown that deubiquitination plays a key role in tumor progression, metastasis, resistance to chemotherapy drugs, and prognosis. In this study, we investigated the effects of the deubiquitinating enzyme USP22 on the expression of the drug-resistance genes BMI1 and EZH2 in hepatocellular carcinoma (HCC) and on prognosis. Downregulation of USP22 expression with interference ribonucleic acid in resistant HCC cell lines with high USP22 expression resulted in decreased BMI1 expression, but had no effect on EZH2 expression...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27899259/overexpression-of-the-long-non-coding-rna-spry4-it1-promotes-tumor-cell-proliferation-and-invasion-by-activating-ezh2-in-hepatocellular-carcinoma
#6
Meng Zhou, Xiao-Yu Zhang, Xi Yu
BACKGROUND: Increasing evidences have demonstrated that the dysregulation of long non-coding RNAs (lncRNAs) may act as an important role in tumor progression. The long non-coding RNA SPRY4 intronic transcript 1 (SPRY4-IT1) has been reported in some cancer including regulating cell growth, differentiation, apoptosis, and cancer progression. However, the expression and function of SPRY4-IT1 in the progression of hepatocellular carcinoma (HCC) remain largely unknown. METHODS: The lncRNA SPRY4-IT1 was detected by quantitative real time PCR (qRT-PCR) in HCC cell lines, CCK8 cell proliferation and transwell invasion assays were performed to detect the GC cell proliferation and invasion abilities...
January 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27890434/mir-98-inhibits-hepatocellular-carcinoma-cell-proliferation-via-targeting-ezh2-and-suppressing-wnt-%C3%AE-catenin-signaling-pathway
#7
Jun-Jie Zhang, Jiang-Tao Chen, Long Hua, Kun-Hou Yao, Chen-Yu Wang
Hepatocellular carcinoma (HCC) is a highly aggressive solid malignancy in the word. Aberrant microRNA (miRNA) expression is involved in human diseases including cancer. In the current study, we explore the function of miR-98 in HCC cell proliferation. We found that expression level of miR-98 was significantly decreased in HCC tissues and cells lines compared with adjacent non-tumor issues and human hepatic cell line LO2. Increased expression of miR-98 suppressed HCC cell proliferation and arrested HCC cell cycle in G0/G1 phase...
January 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27721404/a-pre-neoplastic-epigenetic-field-defect-in-hcv-infected-liver-at-transcription-factor-binding-sites-and-polycomb-targets
#8
N A Wijetunga, M Pascual, J Tozour, F Delahaye, M Alani, M Adeyeye, A W Wolkoff, A Verma, J M Greally
The predisposition of patients with Hepatitis C virus (HCV) infection to hepatocellular carcinoma (HCC) involves components of viral infection, inflammation and time. The development of multifocal, genetically distinct tumours is suggestive of a field defect affecting the entire liver. The molecular susceptibility mediating such a field defect is not understood. One potential mediator of long-term cellular reprogramming is heritable (epigenetic) regulation of transcription, exemplified by DNA methylation. We studied epigenetic and transcriptional changes in HCV-infected livers in comparison with control, uninfected livers and HCC, allowing us to identify pre-neoplastic epigenetic and transcriptional events...
April 6, 2017: Oncogene
https://www.readbyqxmd.com/read/27644248/hypoxia-induced-nipp1-activation-enhances-metastatic-potential-and-predicts-poor-prognosis-in-hepatocellular-carcinoma
#9
Yun Huang, Yiming Tao, Kuan Hu, Feng Lin, Xinying Li, Tiecheng Feng, Zhi-Ming Wang
Hypoxia is known to promote hepatocellular carcinoma (HCC) invasion and metastasis and nuclear inhibitor of protein phosphatase 1 (NIPP1) overexpression contributes to the malignant phenotype in HCC. The aim of this study was to investigate the role of NIPP1 in HCC development under hypoxia. We first conducted a study with 106 cases to explore the association of NIPP1 and/or enhancer of zeste homolog 2 (EZH2) expression with poor prognosis in HCC. Then additional 352 independent cases were recruited to validate the results in the first stage...
November 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/27501756/long-noncoding-rna-xist-acts-as-an-oncogene-in-non-small-cell-lung-cancer-by-epigenetically-repressing-klf2-expression
#10
Jing Fang, Cheng-Cao Sun, Cheng Gong
Recently, long noncoding RNAs (lncRNAs) have been identified as critical regulators in numerous types of cancers, including non-small cell lung cancer (NSCLC). X inactivate-specific transcript (XIST) has been found to be up-regulated and acts as an oncogene in gastric cancer and hepatocellular carcinoma, but little is known about its expression pattern, biological function and underlying mechanism in NSCLC. Here, we identified XIST as an oncogenic lncRNA by driving tumorigenesis in NSCLC. We found that XIST is over-expressed in NSCLC, and its increased level is associated with shorter survival and poorer prognosis...
September 16, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27496341/long-noncoding-rna-hulc-promotes-colorectal-carcinoma-progression-through-epigenetically-repressing-nkd2-expression
#11
Xiao-Jun Yang, Chao-Qun Huang, Chun-Wei Peng, Jin-Xuan Hou, Jiu-Yang Liu
Recently, long noncoding RNAs (lncRNAs) have been emerged as crucial regulators of human diseases and prognostic markers in numerous of cancers, including colorectal carcinoma (CRC). Here, we identified an oncogenetic lncRNA HULC, which may promote colorectal tumorigenesis. HULC has been found to be up-regulated and acts as oncogene in gastric cancer and hepatocellular carcinoma, but its expression pattern, biological function and underlying mechanism in CRC is still undetermined. Here, we reported that HULC expression is also over-expressed in CRC, and its increased level is associated with poor prognosis and shorter survival...
October 30, 2016: Gene
https://www.readbyqxmd.com/read/27380494/long-noncoding-rna-gihcg-promotes-hepatocellular-carcinoma-progression-through-epigenetically-regulating-mir-200b-a-429
#12
Cheng-Jun Sui, Yan-Ming Zhou, Wei-Feng Shen, Bing-Hua Dai, Jiong-Jiong Lu, Min-Feng Zhang, Jia-Mei Yang
Long noncoding RNAs (lncRNAs) have been reported to play pivotal roles in a variety of cancers. However, lncRNAs involved in hepatocellular carcinoma (HCC) initiation and progression remain largely unclear. In this study, we identified an lncRNA gradually increased during hepatocarcinogenesis (lncRNA-GIHCG) using publicly available microarray data. Our results further revealed that GIHCG is upregulated in HCC tissues in comparison with adjacent non-tumor tissues. High GIHCG expression is correlated with large tumor size, microvascular invasion, advanced BCLC stage, and poor survival of HCC patients...
November 2016: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/27246976/long-noncoding-rna-zfas1-promotes-gastric-cancer-cells-proliferation-by-epigenetically-repressing-klf2-and-nkd2-expression
#13
Fengqi Nie, Xiang Yu, Mingde Huang, Yunfei Wang, Min Xie, Hongwei Ma, Zhaoxia Wang, Wei De, Ming Sun
Recently, long noncoding RNAs have been emerged as critical regulators of human disease and prognostic markers in several cancers, including gastric cancer. In this study, we globally assessed the transcriptomic differences of lncRNAs in gastric cancer using publicly available microarray data from Gene Expression Omnibus (GEO) and identified an oncogenetic lncRNA ZFAS1, which may promote gastric tumorigenesis. ZFAS1 has been found to be upregulated and function as oncogene in colorectal cancer and hepatocellular carcinoma, but its expression pattern, biological function and underlying mechanism in gastric cancer is still undetermined...
May 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27239797/lnc-%C3%AE-catm-elicits-ezh2-dependent-%C3%AE-catenin-stabilization-and-sustains-liver-csc-self-renewal
#14
Pingping Zhu, Yanying Wang, Guanling Huang, Buqing Ye, Benyu Liu, Jiayi Wu, Ying Du, Lei He, Zusen Fan
Liver cancer stem cells (CSCs) may contribute to the high rate of recurrence and heterogeneity of hepatocellular carcinoma (HCC); however, the molecular mechanisms underlying their self-renewal and differentiation remain largely unknown. Through analysis of transcriptome microarray data, we identified a long noncoding RNA (lncRNA) called lnc-β-Catm, which is highly expressed in human HCC tumors and liver CSCs. We found that lnc-β-Catm is required for self-renewal of liver CSCs and tumor propagation in mice...
July 2016: Nature Structural & Molecular Biology
https://www.readbyqxmd.com/read/27231134/the-nkd1-rac1-feedback-loop-regulates-the-invasion-and-migration-ability-of-hepatocarcinoma-cells
#15
Jie Li, Sheng Zhang, Qing Hu, Kang Zhang, Jianbin Jin, Xuqing Zheng, Zhenyu Yin, Xiaomin Wang
Hepatocellular carcinoma (HCC) is complicated by aggressive migration and invasion, which contribute to the increased mortality of HCC patients. The NKD1 protein is abnormally expressed in many neoplasms and plays an important role in tumor progression. However, the regulation and underlying molecular mechanisms of NKD1 in HCC cell invasion and migration remain poorly understood. In the present study, ectopic expression of NKD1 in HCC cells attenuated migration and invasion in vitro and in vivo by down-regulating Rac1 expression level and activity, which affected the HCC cell cytoskeleton and E-cadherin expression...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27207647/cldn14-is-epigenetically-silenced-by-ezh2-mediated-h3k27me3-and-is-a-novel-prognostic-biomarker-in-hepatocellular-carcinoma
#16
Chang-Peng Li, Mu-Yan Cai, Li-Juan Jiang, Shi-Juan Mai, Jie-Wei Chen, Feng-Wei Wang, Yi-Ji Liao, Wen-Hui Chen, Xiao-Han Jin, Xiao-Qing Pei, Xin-Yuan Guan, Mu-Sheng Zeng, Dan Xie
Trimethylation of lysine 27 on histone H3 (H3K27ME3) is a transcription-suppressive histone mark mediated by enhancer of zeste homolog 2 (EZH2). We have previously suggested that EZH2-mediated H3K27ME3 plays a critical oncogenic role in human hepatocellular carcinoma (HCC) aggressiveness. However, the direct downstream targets of EZH2-H3K27ME3 and the molecular mechanisms by which regulates HCC pathogenesis remain unclear. In this study, we used chromatin immunoprecipitation together with high-throughput sequencing (ChIP-seq) and gene expression profiling by microarray analysis to assess genome-wide chromatin occupancy of H3K27ME3 in HCC cells...
June 2016: Carcinogenesis
https://www.readbyqxmd.com/read/27009634/hbx-upregulated-lncrna-uca1-promotes-cell-growth-and-tumorigenesis-by-recruiting-ezh2-and-repressing-p27kip1-cdk2-signaling
#17
Jiao-Jiao Hu, Wei Song, Shao-Dan Zhang, Xiao-Hui Shen, Xue-Mei Qiu, Hua-Zhang Wu, Pi-Hai Gong, Sen Lu, Zhu-Jiang Zhao, Ming-Liang He, Hong Fan
It is well accepted that HBx plays the major role in hepatocarcinogenesis associated with hepatitis B virus (HBV) infections. However, little was known about its role in regulating long noncoding RNAs (lncRNAs), a large group of transcripts regulating a variety of biological processes including carcinogenesis in mammalian cells. Here we report that HBx upregulates UCA1 genes and downregulates p27 genes in hepatic LO2 cells. Further studies show that the upregulated UCA1 promotes cell growth by facilitating G1/S transition through CDK2 in both hepatic and hepatoma cells...
March 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27001970/microrna-129-5p-a-c-myc-negative-target-affects-hepatocellular-carcinoma-progression-by-blocking-the-warburg-effect
#18
Han Han, Wenjuan Li, Hongxing Shen, Jinxiang Zhang, Yahui Zhu, Youjun Li
Deregulation of microRNAs (miRNAs) and c-Myc (Myc) contributes to hepatocellular carcinoma (HCC) progression, but how miRNAs and Myc regulate each other in hepatocarcinogenesis is still poorly understood. Using a functional screen, we identified miR-129-5p as a miRNA that inhibits HCC cell growth. miR-129-5p targets the mitochondrial matrix protein pyruvate dehydrogenase kinase 4 (PDK4), which leads to decreased phosphorylation of the E1α subunit of pyruvate dehyrogenase (PDH) complex, inhibition of glycolysis, retarded tumor growth, and impaired lung colonization...
March 21, 2016: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/26973856/in-silico-and-experimental-analyses-predict-the-therapeutic-value-of-an-ezh2-inhibitor-gsk343-against-hepatocellular-carcinoma-through-the-induction-of-metallothionein-genes
#19
Tsang-Pai Liu, Yi-Han Hong, Kwang-Yi Tung, Pei-Ming Yang
There are currently no effective molecular targeted therapies for hepatocellular carcinoma (HCC), the third leading cause of cancer-related death worldwide. Enhancer of zeste homolog 2 (EZH2), a histone H3 lysine 27 (H3K27)-specific methyltransferase, has been emerged as novel anticancer target. Our previous study has demonstrated that GSK343, an S-adenosyl-L-methionine (SAM)-competitive inhibitor of EZH2, induces autophagy and enhances drug sensitivity in cancer cells including HCC. In this study, an in silico study was performed and found that EZH2 was overexpressed in cancerous tissues of HCC patients at both gene and protein levels...
2016: Oncoscience
https://www.readbyqxmd.com/read/26800240/yin-yang-1-mediated-epigenetic-silencing-of-tumour-suppressive-micrornas-activates-nuclear-factor-%C3%AE%C2%BAb-in-hepatocellular-carcinoma
#20
Daisy P F Tsang, William K K Wu, Wei Kang, Ying-Ying Lee, Feng Wu, Zhuo Yu, Lei Xiong, Anthony W Chan, Joanna H Tong, Weiqin Yang, May S M Li, Suki S Lau, Xiangchun Li, Sau-Dan Lee, Yihua Yang, Paul B S Lai, Dae-Yeul Yu, Gang Xu, Kwok-Wai Lo, Matthew T V Chan, Huating Wang, Tin L Lee, Jun Yu, Nathalie Wong, Kevin Y Yip, Ka-Fai To, Alfred S L Cheng
Enhancer of zeste homolog 2 (EZH2) catalyses histone H3 lysine 27 trimethylation (H3K27me3) to silence tumour-suppressor genes in hepatocellular carcinoma (HCC) but the process of locus-specific recruitment remains elusive. Here we investigated the transcription factors involved and the molecular consequences in HCC development. The genome-wide distribution of H3K27me3 was determined by chromatin immunoprecipitation coupled with high-throughput sequencing or promoter array analyses in HCC cells from hepatitis B virus (HBV) X protein transgenic mouse and human cell models...
April 2016: Journal of Pathology
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