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https://www.readbyqxmd.com/read/28098858/mir-345-inhibits-tumor-metastasis-and-emt-by-targeting-irf1-mediated-mtor-stat3-akt-pathway-in-hepatocellular-carcinoma
#1
Miao Yu, Huanzhou Xue, Yadong Wang, Quan Shen, Qingfeng Jiang, Xiao Zhang, Ke Li, Meng Jia, Jiangkun Jia, Jian Xu, Yuwei Tian
MicroRNAs (miRNAs) have been reported to play critical roles in tumor progression including hepatocellular carcinoma (HCC). Thus, the underlying mechanisms need further investigation. Previous study reported that loss of miR-345 expression indicated a poor prognosis of HCC patients. This study evaluated whether loss of miR-345 could promote the tumor metastasis and epithelial-mesenchymal-transition (EMT) of HCC by targeting interferon regulatory factor 1 (IRF1)-mediated mTOR/STAT3/AKT signaling. Underexpression of miR-345 was identified in 65 cases of human HCC compared to matched tumor-adjacent tissues by qRT-PCR...
January 17, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28088579/the-microrna-449-family-inhibits-tgf-%C3%AE-mediated-liver-cancer-cell-migration-by-targeting-sox4
#2
Maria Sandbothe, Reena Buurman, Nicole Reich, Luisa Greiwe, Beate Vajen, Engin Gürlevik, Vera Schäffer, Marlies Eilers, Florian Kühnel, Alejandro Vaquero, Thomas Longerich, Stephanie Roessler, Peter Schirmacher, Michael P Manns, Thomas Illig, Brigitte Schlegelberger, Britta Skawran
BACKGROUND & AIMS: Modulation of microRNA expression is considered for treatment of hepatocellular carcinoma (HCC). Therefore, we characterized the epigenetically regulated microRNA-449 family (miR-449a, miR-449b, miR-449c) with regards to its functional effects and target genes in HCC. METHODS: After transfection of miR-449a, miR-449b, and/or miR-449c, tumor-relevant functional effects were analyzed using in vitro assays and a xenograft mouse model. Binding specificities, target genes, and regulated pathways of each microRNA were identified by microarray analyses...
January 11, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28079796/serum-microrna-panel-for-early-diagnosis-of-the-onset-of-hepatocellular-carcinoma
#3
Ying Zhang, Tao Li, Yumin Qiu, Tao Zhang, Pengbo Guo, Xiaomin Ma, Qing Wei, Lihui Han
Unique change of circulating microRNAs (miRNAs) was recognized to occur in early oncogenesis, which conferred it the potential as biomarkers for early detection of cancer. However, its diagnostic capability for hepatocellular carcinoma (HCC) has not been fully understood. In this study, microarray analysis was applied to screen the initial candidate miRNA from both the supernatants of anoikis-resistant cellular models and the sera samples of HCC patients. The selected differentially expressed miRNAs were further verified in 115 HCC patients and 40 health controls by qRT-PCR...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28076852/mir-874-3p-is-down-regulated-in-hepatocellular-carcinoma-and-negatively-regulates-pin1-expression
#4
Ka-Wai Leong, Chi-Wai Cheng, Chun-Ming Wong, Irene Oi-Lin Ng, Yok-Lam Kwong, Eric Tse
PIN1 is a peptidyl-prolyl cis/trans isomerase (PPIase) that regulates multiple signaling pathways to control cell fate and is found to be over-expressed in cancers, including hepatocellular carcinoma (HCC). However, the regulation of PIN1 in HCC remains poorly defined. Micro-RNAs (miRNAs) have been reported to play a pivotal role in oncogenesis by targeting the 3'-untranslated region (UTR) of mRNAs encoded by oncogenes and tumour suppressor genes, thereby suppressing the levels of both oncoproteins and tumour suppressors...
January 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28061012/serum-microrna-profiles-as-diagnostic-biomarkers-for-hbv-positive-hepatocellular-carcinoma
#5
Hao-Tu Zhu, Rong-Bin Liu, Ya-Yong Liang, Abdulbaqi M E Hasan, Hai-Yun Wang, Qiong Shao, Zi-Chen Zhang, Jing Wang, Cai-Yun He, Fang Wang, Jian-Yong Shao
BACKGROUND & AIMS: The discovery of effective and reliable biomarkers to detect hepatitis B virus (HBV)-positive hepatocellular carcinoma (HCC) at an early stage may improve the survival of HCC. The aim of this study was to establish serum microRNA (miRNA) profiles as diagnostic biomarkers for HBV-positive HCC. METHODS: We used deep sequencing to screen serum miRNAs in a discovery cohort (n=100). Quantitative polymerase chain reaction (qPCR) assays were then applied to evaluate the expression of selected miRNAs...
January 6, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28060739/a-novel-micrornas-expression-signature-for-hepatocellular-carcinoma-diagnosis-and-prognosis
#6
Mengxuan Lu, Xia Kong, Huaigao Wang, Guoliang Huang, Caiguo Ye, Zhiwei He
This study aims to identify prognostic microRNAs (miRNAs) biomarkers for diagnosis and survival of hepatocellular carcinoma (HCC) based on large patients cohort analysis. HCC patient cohort data were downloaded from The Cancer Genome Atlas, including paired HCC and adjacent non-cancer tissues. Receiver operating characteristic curve method was used to classify cancer and non-cancer tissues according to microRNAs expression levels. The aberrant microRNAs expression level were ranked and risked for building a prognostic miRNAs signature model...
January 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28060733/high-expression-of-mir-105-1-positively-correlates-with-clinical-prognosis-of-hepatocellular-carcinoma-by-targeting-oncogene-ncoa1
#7
Yu-Shui Ma, Ting-Miao Wu, Zhong-Wei Lv, Gai-Xia Lu, Xian-Ling Cong, Ru-Ting Xie, Hui-Qiong Yang, Zheng-Yan Chang, Ran Sun, Li Chai, Ming-Xiang Cai, Xiao-Jun Zhong, Jian Zhu, Da Fu
Increasing evidence supports that microRNA (miRNA) plays a significant functional role in cancer progression by directly regulating respective targets. In this study, the expression levels of miR-105-1 and its target gene were analyzed using genes microarray and hierarchical clustering analysis followed by validation with quantitative RT-PCR in hepatocellular carcinoma (HCC) and normal liver tissues. We examined the expression of nuclear receptor coactivator 1 (NCOA1), the potential target gene of miR-105-1, following the transfection of miR-105-1 mimics or inhibitors...
January 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28049231/an-explorative-analysis-for-the-role-of-serum-mir-10b-3p-levels-in-predicting-response-to-sorafenib-in-patients-with-advanced-hepatocellular-carcinoma
#8
Eileen L Yoon, Jong Eun Yeon, Eunjung Ko, Hyun Jung Lee, Ji Hye Je, Yang Jae Yoo, Seong Hee Kang, Sang Jun Suh, Ji Hoon Kim, Yeon Seok Seo, Hyung Joon Yim, Kwan Soo Byun
The prognostic role of aberrant serum miRNA expression for predicting response to sorafenib treatment in advanced hepatocellular carcinoma (HCC) patients has not been well characterized. We aimed to identify specific serum miRNAs that are associated with positive radiologic responses or improved survival in sorafenib-treated HCC patients. miR-18a, miR-21, miR-139-5p, miR-221, miR-224, and miR-10b-3p, were selected for analysis. Serum samples from 24 patients with advanced stage HCC and 25 patients with liver cirrhosis (LC) were analyzed...
February 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28034876/an-indel-polymorphism-within-pre-mir3131-confers-risk-for-hepatocellular-carcinoma
#9
Chaoqun Wang, Lijuan Li, Zhixia Yin, Qing Zhang, Hua Zhao, Ruiyang Tao, Shouyu Wang, Shuxiang Hu, Yan He, Dayong Wang, Chengtao Li, Suhua Zhang, Jiejie Xu, Xinghong Jiang, Shaohua Zhu, Yuzhen Gao
Polymorphisms in pre-miRNAs may affect its expression, then have effect on its target mRNAs and be associated with cancer susceptibility. In this study, we evaluated the association of an indel polymorphism rs57408770 in pre-miR-3131 with hepatocellular carcinoma (HCC) susceptibility in a Chinese population. The contribution of rs57408770 to HCC risk was investigated in two independent case-control sets (1051 HCC and 1058 controls). Logistic regression analysis showed that the insertion allele of rs57408770 was significantly associated with an increased risk for HCC occurrence in both case-control studies...
December 29, 2016: Carcinogenesis
https://www.readbyqxmd.com/read/28031532/cell-free-methylation-markers-with-diagnostic-and-prognostic-potential-in-hepatocellular-carcinoma
#10
Chang-Yi Lu, Shih-Ya Chen, Hui-Ling Peng, Pu-Yeh Kan, Wan-Chi Chang, Chia-Jui Yen
Hepatocellular carcinoma (HCC) is a highly malignant tumor with poor prognosis and high mortality. There is a dearth of effective early diagnostic tools, so liver resection surgery and liver transplantation are the only effective medical treatments. The most commonly used marker for HCC detection is serum alpha fetoprotein (AFP), which has low sensitivity and specificity. Because aberrant DNA methylation of genes and miRNAs occurs early in most cancers, we explored whether circulating methylation markers could be promising clinical tools for HCC diagnosis...
December 23, 2016: Oncotarget
https://www.readbyqxmd.com/read/28026002/microrna-33b-suppresses-the-proliferation-and-metastasis-of-hepatocellular-carcinoma-cells-through-the-inhibition-of-sal-like-protein-4-expression
#11
Qinggang Tian, Yao Xiao, Yanting Wu, Yun Liu, Zhiqing Song, Wenfeng Gao, Jing Zhang, Jingling Yang, Yuguo Zhang, Tuankui Guo, Furong Dai, Zhigang Sun
MicroRNAs (miRNAs or miRs) have been found to participate in the development and malignant progression of human cancers by negatively mediating the expression of their target genes. Recently, miR‑33b has been reported to be involved in multiple types of human cancer, including hepatocellular carcinoma (HCC). However, the underlying regulatory mechanisms of miR‑33b in HCC cell growth and metastasis remain largely unclear. In the present study, RT-qPCR revealed that miR‑33b was significantly downregulated in HCC tissues compared to their matched adjacent normal tissues...
November 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28018099/understanding-the-role-of-pin1-in-hepatocellular-carcinoma
#12
REVIEW
Chi-Wai Cheng, Ka-Wai Leong, Eric Tse
PIN1 is a peptidyl-prolyl cis/trans isomerase that binds and catalyses isomerization of the specific motif comprising a phosphorylated serine or threonine residue preceding a proline (pSer/Thr-Pro) in proteins. PIN1 can therefore induce conformational and functional changes of its interacting proteins that are regulated by proline-directed serine/threonine phosphorylation. Through this phosphorylation-dependent prolyl isomerization, PIN1 fine-tunes the functions of key phosphoproteins (e.g., cyclin D1, survivin, β-catenin and x-protein of hepatitis B virus) that are involved in the regulation of cell cycle progression, apoptosis, proliferation and oncogenic transformation...
December 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28013219/the-role-of-mir-182-5p-in-hepatocarcinogenesis-of-trichloroethylene-in-mice
#13
Yan Jiang, Jiahong Chen, Cong Yue, Hang Zhang, Jian Tong, Jianxiang Li, Tao Chen
Trichloroethylene (TCE), commonly used as an industrial solvent, is ubiquitous in our living environment. TCE exposure can induce hepatocellular carcinoma (HCC) in mice, but the underlying mechanisms remain elusive. To understand the role of miRNA in the hepatocarcinogenesis of TCE, we examined the miRNA expression profiles by microarray in the liver of B6C3F1 male mice exposed to TCE at 0 or 1000 mg/kg b.w.. Nine differentially expressed miRNAs were identified, out of which miR-182-5p exhibited the highest increase in expression...
December 24, 2016: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28012864/germline-and-somatic-dicer1-mutations-in-familial-and-sporadic-liver-tumors
#14
Stefano Caruso, Julien Calderaro, Eric Letouzé, Jean-Charles Nault, Gabrielle Couchy, Anais Boulais, Alain Luciani, Elie-Serge Zafrani, Paulette Bioulac-Sage, Olivier Seror, Sandrine Imbeaud, Jessica Zucman-Rossi
BACKGROUND & AIMS: Growing evidence suggests that genetic predisposition significantly increases the risk of hepatocellular carcinoma (HCC), independently from the presence of other risk factors. Here, we report a novel germline DICER1 mutation associated with familial recurrent liver tumors. Next, we aimed to investigate the contribution of constitutional and somatic DICER1 mutations on HCC occurrence. METHODS: We investigated two individuals of a family that developed recurrent well-differentiated hepatocellular tumors over the years...
December 21, 2016: Journal of Hepatology
https://www.readbyqxmd.com/read/27998770/microrna-340-inhibits-the-proliferation-and-invasion-of-hepatocellular-carcinoma-cells-by-targeting-jak1
#15
Jianyong Yuan, Hongxiang Ji, Feng Xiao, Zhipeng Lin, Xijun Zhao, Zhouchong Wang, Jun Zhao, Junhua Lu
Increasing evidence indicates that dysregulation of microRNAs (miRNAs) contributes to tumorigenesis. MicroRNA-340 (miR-340) is downregulated in several types of cancer. However, the functional mechanism of miR-340 in hepatocellular carcinoma (HCC) remains unclear. Here, we showed that miR-340 was significantly downregulated in HCC tissues and cell lines. Gain-of-function experiments demonstrated that miR-340 overexpression inhibited HCC cell proliferation, migration, and invasion in vitro, and suppressed tumor growth in vivo...
December 18, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27998765/mir-223-modulates-hepatocellular-carcinoma-cell-proliferation-through-promoting-apoptosis-via-the-rab1-mediated-mtor-activation
#16
Zheng Dong, Ruizhao Qi, Xiaodong Guo, Xin Zhao, Yinyin Li, Zhen Zeng, Wenlin Bai, Xiujuan Chang, Liyan Hao, Yan Chen, Min Lou, Zhiwei Li, Yinying Lu
Hepatocellular carcinoma (HCC) is a common digestive malignancy. MiR-223, a well-identified miRNA, exhibits diverse properties in different cancers. In this study, we demonstrated that miR-223 could suppress cell growth and promote apoptosis in HepG2 and Bel-7402 HCC cell lines. We screened and identified a novel miR-223 target, Ras-related protein Rab-1(Rab1). Upregulation of miR-223 would specifically and markedly down-regulate Rab1 expression. In addition, miR-223-overexpressing subclones showed significant cell growth inhibition by increasing cell apoptosis in HepG2 and Bel-7402 cells...
December 18, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27988500/non-coding-rnas-the-cancer-genome-dark-matter-that-matters
#17
Hui Ling, Leonard Girnita, Octavian Buda, George A Calin
Protein-coding genes comprise only 3% of the human genome, while the genes that are transcribed into RNAs but do not code for proteins occupy majority of the genome. Once considered as biological darker matter, non-coding RNAs are now being recognized as critical regulators in cancer genome. Among the many types of non-coding RNAs, microRNAs approximately 20 nucleotides in length are best characterized and their mechanisms of action are well generalized. microRNA exerts oncogenic or tumor suppressor function by regulation of protein-coding genes via sequence complementarity...
December 19, 2016: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/27983537/clinical-potential-of-mirna-221-as-a-novel-prognostic-biomarker-for-hepatocellular-carcinoma
#18
Fan Chen, Xin-Feng Li, Dong-Sheng Fu, Jian-Guo Huang, Shun-E Yang
miRNA-221 is one of the over 700 kinds of currently known microRNAs (miRNAs) and is up-regulated in multiple tumors, suggesting that it may be a potential carcinogenic miRNA. Few studies have explored the relationship between miRNA-221 and hepatocellular carcinoma (HCC). We performed real-time quantitative polymerase chain reaction (qPCR) to detect miRNA-221 expression in HCC and para-carcinoma tissues and to explore the relationship between abnormal expression of miRNA-221 and clinicopathological features of HCC patients...
December 9, 2016: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/27960411/gemcitabine-and-antisense-microrna-co-encapsulated-plga-peg-polymer-nanoparticles-for-hepatocellular-carcinoma-therapy
#19
Rammohan Devulapally, Kira Foygel, Thillai V Sekar, Juergen K Willmann, Ramasamy Paulmurugan
Hepatocellular carcinoma (HCC) is highly prevalent, and the third most common cause of cancer-associated deaths worldwide. HCC tumors respond poorly to chemotherapeutic anticancer agents due to inherent and acquired drug resistance, and low drug permeability. Targeted drug delivery systems with significant improvement in therapeutic efficiency are needed for successful HCC therapy. Here, we report the results of a technique optimized for the synthesis and formulation of antisense-miRNA-21 and gemcitabine (GEM) co-encapsulated PEGylated-PLGA nanoparticles (NPs) and their in vitro therapeutic efficacy in human HCC (Hep3B and HepG2) cells...
December 14, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27956256/circulating-micrornas-possible-role-as-non-invasive-diagnostic-biomarkers-in-liver-disease
#20
Kishor Pant, Senthil K Venugopal
Liver is the central organ for metabolism and the hepatocytes metabolize several drugs, hepatotoxins, alcohol, etc. Continuous exposure of the hepatocytes to these toxins result in various chronic diseases, such as alcoholic liver disease, non-alcoholic fatty liver disease, viral hepatitis and hepatocellular carcinoma. Although several diagnostic methods, such as serum markers, liver biopsy or imaging studies are currently available, most of these are either invasive or detect the disease at advanced stages...
December 9, 2016: Clinics and Research in Hepatology and Gastroenterology
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