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https://www.readbyqxmd.com/read/28529605/mutual-regulation-of-mir-199a-5p-and-hif-1%C3%AE-modulates-the-warburg-effect-in-hepatocellular-carcinoma
#1
Binkui Li, Liru He, Dinglan Zuo, Wei He, Yongjin Wang, Yuanping Zhang, Wenwu Liu, Yunfei Yuan
The Warburg effect is one of the major metabolic changes of cancer cells, which characterized by high level of glycolysis even in the presence of oxygen. However, the role of microRNAs (miRNAs) in regulating the glycolytic switch in cancer cells has not been well explored. In this study, we demonstrated that miR-199a-5p acts as a suppressor of the Warburg effect in hepatocellular carcinoma (HCC). MiR-199a-5p directly targets the 3'-untranslated region (UTR) of hypoxia-inducible factor-1α (HIF-1α), thereby suppressing glucose uptake, lactate production, cell growth, and expression of HIF-1α downstream glycolytic genes of HCC cells...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28529597/dysregulation-of-mir-638-in-hepatocellular-carcinoma-and-its-clinical-significance
#2
Jiwen Cheng, Yanke Chen, Pu Zhao, Na Li, Jianwen Lu, Jianhui Li, Zhengwen Liu, Yi Lv, Chen Huang
MicroRNAs (miRNAs/miRs) have been identified as important post-transcriptional regulators in healthy liver physiology and liver diseases. However, the clinical significance of miR-638 in hepatocellular carcinoma (HCC) remains unclear. The aim of the present study was to investigate the status of miR-638 expression in HCC and to determine its clinical significance. The expression of miR-638 was evaluated in 60 HCC tissues samples and HCC SMMC-7721, HepG2 and Hep3B cell lines using reverse transcription-quantitative polymerase chain reaction...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28529562/mir-195-inhibits-cell-proliferation-via-targeting-aeg-1-in-hepatocellular-carcinoma
#3
Jing-Jun Yan, Ying Chang, Yu-Nan Zhang, Ju-Sheng Lin, Xing-Xing He, Huan-Jun Huang
Emerging evidence has indicated that microRNAs (miRNAs) are frequently dysregulated and are fundamental in the pathogenesis of hepatocellular carcinoma (HCC). However, the roles of miR-195 in HCC have not been well elucidated. In the present study, the expression of miR-195 was determined to be markedly downregulated in HCC tissues and cell lines, as compared with normal liver cells. Restoration of miR-195 expression resulted in significant inhibition of the proliferation and tumorigenicity of HCC cells in vitro and in vivo...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28524360/lamc1-mrna-promotes-malignancy-of-hepatocellular-carcinoma-cells-by-competing-for-microrna-124-binding-with-cd151
#4
Zhan-Po Yang, Hong-Shun Ma, Shu-Sen Wang, Le Wang, Tao Liu
Specific RNAs can function as sinks for endogenous miRNAs, known as competing endogenous RNAs (ceRNAs). Here, we confirm a miR-124 mediated ceRNA crosstalk between LAMC1 and CD151 in hepatocellular carcinoma (HCC). miR-124 negatively regulates LAMC1 expression through two miRNA binding sites within its 3' untranslated region (3'UTR) and suppresses migration and invasion of HCC cells through regulating LAMC1. The wild type LAMC1 miRNA response elements (MREs) facilitate expression of CD151, and this regulation is miR-124 dependent...
May 19, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28521446/candidate-mirnas-and-pathogenesis-investigation-for-hepatocellular-carcinoma-based-on-bioinformatics-analysis
#5
Wenbin Ding, Haixia Yang, Shenchu Gong, Weixiang Shi, Jing Xiao, Jinhua Gu, Yilang Wang, Bosheng He
The present study aimed to explore the mechanisms behind the development and progression of hepatocellular carcinoma (HCC) and identify information regarding HCC-related microRNAs (miRNAs) or marker genes for the gene therapy of HCC. Gene expression profile of GSE67882, generated from 4 hepatitis B virus infected HCC tissue samples (HCC group) and 8 chronic hepatitis B tissue samples with no fibrosis (control group) were downloaded from the Gene Expression Omnibus database. The differentially expressed miRNAs functional enrichment and pathway analyses of HCC were revealed, followed by transcription factor-miRNA interaction network construction and analyses...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28520103/circular-rna-mto1-acts-as-the-sponge-of-mir-9-to-suppress-hepatocellular-carcinoma-progression
#6
Dan Han, Jiangxue Li, Huamin Wang, Xiaoping Su, Jin Hou, Yan Gu, Cheng Qian, Yun Lin, Xiang Liu, Mingyan Huang, Nan Li, Weiping Zhou, Yizhi Yu, Xuetao Cao
Non-coding RNAs play important roles in cancer biology, providing potential targets for cancer intervention. As a new class of endogenous non-coding RNAs, circular RNAs (circRNAs) have been recently identified in the development, cell function and certain types of pathological responses, generally acting as microRNA (miRNA) sponge to regulate gene expression. Identifying the deregulated circRNAs and their roles in cancer has attracted much attention. However, the expression profile and function of circRNAs in human hepatocellular carcinoma (HCC) remain to be investigated...
May 18, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28518144/microrna-23b-functions-as-an-oncogene-and-activates-akt-gsk3%C3%AE-%C3%AE-catenin-signaling-by-targeting-st7l-in-hepatocellular-carcinoma
#7
Likun Zhuang, Xin Wang, Zusen Wang, Xiang Ma, Bing Han, Hao Zou, Zehua Wu, Sheng Dong, Zhiqiang Qu, Yunjin Zang, Liqun Wu
Hepatocellular carcinoma (HCC) is a malignant tumor and threatens human life worldwide, whereas the etiology and pathogenesis of HCC have not been fully determined. In the past few years, many microRNAs (miRNAs) have been proved to have important roles in tumorigenesis of HCC. In this study, we found that miR-23b was significantly upregulated in tumor tissues of HCC patients. Functional tests showed that miR-23b could promote HCC cell proliferation and metastasis in vitro and in vivo. Then, mechanistic investigations suggested that ST7L was a direct target of miR-23b and involved in the promotion effects of miR-23b on HCC tumorigenesis and metastasis...
May 18, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28499985/functional-mir-146a-mir-149-mir-196a2-and-mir-499-polymorphisms-and-the-susceptibility-to-hepatocellular-carcinoma-an-updated-meta-analysis
#8
Lei Zheng, Chunbo Zhuang, Junwei Zhao, Liang Ming
OBJECTIVE: Single nucleotide polymorphisms of miRNAs play important roles in the pathogenesis of hepatocellular carcinoma (HCC). To evaluate the association between four common miRNAs (miR-146a rs2910164; miR-149 rs2292832; miR-196a2 rs11614913 and miR-499 rs3746444) and HCC risk, an updated meta-analysis was performed. METHODS: 32 studies including 12,405 HCC cases and 15,056 controls were used for this meta-analysis. There were 22 studies with 7894 cases and 10,221 controls for miR-146a, 9 studies with 2684 HCC cases and 3464 controls for miR-149, 17 studies with 6937 cases and 8217 controls for miR-196a2 and 16 studies with 4158 cases and 5264 controls for miR-499...
May 9, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/28496200/microrna-200a-3p-increases-5-fluorouracil-resistance-by-regulating-dual-specificity-phosphatase-6-expression
#9
Heejin Lee, Chongtae Kim, Hoin Kang, Hyosun Tak, Sojin Ahn, Sungjoo Kim Yoon, Hyo-Jeong Kuh, Wook Kim, Eun Kyung Lee
Acquisition of resistance to anti-cancer drugs is a significant obstacle to effective cancer treatment. Although several efforts have been made to overcome drug resistance in cancer cells, the detailed mechanisms have not been fully elucidated. Here, we investigated whether microRNAs (miRNAs) function as pivotal regulators in the acquisition of anti-cancer drug resistance to 5-fluorouracil (5-FU). A survey using a lentivirus library containing 572 precursor miRNAs revealed that five miRNAs promoted cell survival after 5-FU treatment in human hepatocellular carcinoma Hep3B cells...
May 12, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28477068/the-role-of-mir-130a-in-cancer
#10
REVIEW
He-da Zhang, Lin-Hong Jiang, Da-Wei Sun, Jian Li, Zhen-Ling Ji
MicroRNAs (miRs) are short and highly conserved non-coding RNAs molecules consisting of 18-25 nucleotides that regulate gene expression at post-transcriptional level by direct binding to complementary binding sites within the 3'untranslated region (3'UTR) of target mRNAs. New evidences have demonstrated that miRNAs play an important role in diverse physiological processes, including regulating cell growth, apoptosis, metastasis, drug resistance, and invasion. In chromosomes 11 and 22 of the miR-130 family, paralogous miRNA sequences, miR-130a and miR-130b are situated, respectively...
May 5, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28477010/circulating-mir-21-serves-as-a-serum-biomarker-for-hepatocellular-carcinoma-and-correlated-with-distant-metastasis
#11
Xin Guo, Xiaohui Lv, Xing Lv, Yueyun Ma, Lin Chen, Yong Chen
Serum miRNAs have gained great popularity to act as circulating biomarkers of several cancers. In this study, we aimed to evaluate the diagnostic efficiency of serum miR-21 as novel biomarkers for patients with hepatocellular carcinoma (HCC) and other controls. A total of 533 individuals were recruited and conducted in a two-step analysis. The pilot group included 40 HCC patients and 40 healthy donors. The expression levels of miR-21 were significantly higher in primary HCC tissues than in adjacent noncancerous tissues (P<0...
April 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28465351/an-hnf4%C3%AE-microrna-194-192-signaling-axis-maintains-hepatic-cell-function
#12
Aoi Morimoto, Mana Kannari, Yuichi Tsuchida, Shota Sasaki, Chinatsu Saito, Tsuyoshi Matsuta, Tsukasa Maeda, Megumi Akiyama, Takahiro Nakamura, Masakiyo Sakaguchi, Nobukazu Nameki, Frank J Gonzalez, Yusuke Inoue
HNF4α controls the expression of liver-specific protein-coding genes. However, some microRNAs (miRNAs) are also modulated by HNF4α, and it is not known whether they are direct targets of HNF4α, and whether they influence the hepatic function. In this study, we found that HNF4α regulates miRNAs, indicated by marked down-regulation of miR-194 and miR-192 (miR-194/192) in liver-specific Hnf4a-null (Hnf4a(ΔH)) mice. Transactivation of the shared miR-194/192 promoter was dependent on HNF4α expression, indicating that miR194/192 is a target gene of HNF4α...
May 2, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28459998/identification-of-mirna-7-by-genome-wide-analysis-as-a-critical-sensitizer-for-trail-induced-apoptosis-in-glioblastoma-cells
#13
Xiao Zhang, Xiang Zhang, Shijie Hu, Minhua Zheng, Jie Zhang, Jianhui Zhao, Xiaofang Zhang, Bo Yan, Lintao Jia, Jing Zhao, Kaichun Wu, Angang Yang, Rui Zhang
Glioblastoma (GBM) is still one of the most lethal forms of brain tumor despite of the improvements in treatments. TRAIL (TNF-related apoptosis-inducing ligand) is a promising anticancer agent that can be potentially used as an alternative or complementary therapy because of its specific antitumor activity. To define the novel pathways that regulate susceptibility to TRAIL in GBM cells, we performed a genome-wide expression profiling of microRNAs in GBM cell lines with the distinct sensitivity to TRAIL-induced apoptosis...
April 28, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28455143/ire1%C3%AE-links-nck1-deficiency-to-attenuated-ptp1b-expression-in-hepg2-cells
#14
Hui Li, Bing Li, Louise Larose
PTP1B, a prototype of the non-receptor subfamily of the protein tyrosine phosphatase superfamily, plays a key role in regulating intracellular signaling from various receptor and non-receptor protein tyrosine kinases. Previously, we reported that silencing Nck1 in human hepatocellular carcinoma HepG2 cells enhances basal and growth factor-induced activation of the PI3K-Akt pathway through attenuating PTP1B expression. However, the underlying mechanism by which Nck1 depletion represses PTP1B expression remains unclear...
April 25, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28445974/lowered-expression-of-microrna-125a-5p-in-human-hepatocellular-carcinoma-and-up-regulation-of-its-oncogenic-targets-sirtuin-7-matrix-metalloproteinase-11-and-c-raf
#15
Nicola Coppola, Giorgio de Stefano, Marta Panella, Lorenzo Onorato, Valentina Iodice, Carmine Minichini, Nicola Mosca, Luisa Desiato, Nunzia Farella, Mario Starace, Giulia Liorre, Nicoletta Potenza, Evangelista Sagnelli, Aniello Russo
Human microRNA-125a-5p (miR-125a) is expressed in most tissues where it downregulates the expression of membrane receptors or intracellular transductors of mitogenic signals, thus limiting cell proliferation. Expression of this miRNA generally increases with cell differentiation whereas it is downregulated in several types of tumors, such as breast, lung, ovarian, gastric, colon, and cervical cancers, neuroblastoma, medulloblastoma, glioblastoma, and retinoblastoma. In this study, we focused on hepatocellular carcinoma and used real-time quantitative PCR to measure miR-125a expression in 55 tumor biopsies and in matched adjacent non-tumor liver tissues...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28442344/mir-221-regulates-cd44-in-hepatocellular-carcinoma-through-the-pi3k-akt-mtor-pathway
#16
Jihye Kim, Jinmai Jiang, Mohamed Badawi, Thomas D Schmittgen
CD44 and miR-221 are upregulated in hepatocellular carcinoma (HCC) cell lines and tumors, however a connection between the two has not been identified. As the expression of miR-221 directly correlated with CD44 in HCC cells, we hypothesized that miR-221 may directly or indirectly regulate CD44 expression. Inhibition of miR-221 with antisense in Sk-Hep-1 or SNU-449 cell lines reduced CD44 protein expression while miR-221 mimic increased CD44 protein levels. miR-221 antisense did not alter the CD44 mRNA levels in Sk-Hep-1 or SNU-449 cells suggesting that regulation of CD44 protein occurs post transcriptionally...
April 23, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28440732/expression-of-microrna-let-7a-positively-correlates-with-hepatitis-b-virus-replication-in-hepatocellular-carcinoma-tissues
#17
Dongni Qiu, Jian Chen, Jie Liu, Zhongguang Luo, Weiru Jiang, Jianping Huang, Zhibing Qiu, Wenjie Yue, Lijun Wu
Let-7a miRNA is downregulated in various cancers. However, in hepatocellular carcinoma (HCC) patients infected with hepatitis B virus (HBV), the relationship between let-7a and HBV replication has not been fully elucidated. Liver specimens were collected from 23 HCC patients with chronically active HBV. The serum levels of the HBV antigens hepatitis B surface antigen (HBsAg) and hepatitis B virus e antigen (HBeAg), and the HBV antibodies, anti-HBs, anti-HBe and anti-hepatitis B core antigen (anti-HBc) were measured using the microparticle enzyme immunoassay...
May 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28437884/regulatory-role-of-mir-211-5p-in-hepatocellular-carcinoma-metastasis-by-targeting-zeb2
#18
Guangbin Jiang, Li Wen, Weiping Deng, Zhiyuan Jian, Hongmei Zheng
Hepatocellular carcinoma (HCC) is the most common type of cancer and the rapid tumor growth, drug resistance and metastasis are the major problems for HCC therapy. MicroRNAs (miRNAs) involve in various cell biological processes in HCC. ZEB2 plays crucial roles in HCC progression. ZEB2 is regulated by some identified miRNAs, but there needs to find new miRNAs regulating ZEB2 expression for better understanding the molecular mechanism of HCC. In the present study, ZEB2 was identified as a direct target of miR-211-5p, which was a potential oncogene in cancer...
June 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28430660/screening-differential-circular-rna-expression-profiles-reveals-hsa_circ_0004018-is-associated-with-hepatocellular-carcinoma
#19
Liyun Fu, Ting Yao, Qingqing Chen, Xiaoyan Mo, Yaoren Hu, Junming Guo
Circular RNAs (circRNAs) have been emerged as an indispensable part of endogenous RNA network. However, the expression significance of circRNAs in hepatocellular carcinoma (HCC) is rarely revealed. The aim of this study was to determine the circRNA expression profile in HCC, and to investigate their clinical significances and relevant mechanisms for cancer progression. The global circRNA expression profile in HCC was measured by circRNA microarray. Levels of one representative circRNAs, hsa_circ_0004018, were confirmed by real-time reverse transcription-polymerase chain reaction...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430373/a-five-mirna-expression-signature-predicts-survival-in-hepatocellular-carcinoma
#20
Gang Liu, Hui Wang, Jin-Dong Fu, Jing-Ying Liu, Ai-Guo Yan, Yan-Yan Guan
The aim of this study was to identify a microRNA (miRNA) expression signature for predicting HCC (hepatocellular carcinoma) survival. A total of 322 HCC patients in The Cancer Genome Atlas (TCGA) database were randomly divided into training and testing set. miRNAs, associated with survival time in the training set, were identified by using univariate Cox regression analysis. The risk score was formulated based on the expression levels of these miRNAs. Then the miRNA signature was validated in testing set through Kaplan-Meier analysis and log-rank test...
April 21, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
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