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https://www.readbyqxmd.com/read/27918441/tp53-microrna-interplay-in-hepatocellular-carcinoma
#1
REVIEW
Daniela Pollutri, Laura Gramantieri, Luigi Bolondi, Francesca Fornari
The role of microRNAs as oncogenes and tumor suppressor genes has emerged in several cancers, including hepatocellular carcinoma (HCC). The pivotal tumor suppressive role of p53-axis is indicated by the presence of inactivating mutations in TP53 gene in nearly all cancers. A close interaction between these two players, as well as the establishment of complex p53/miRNAs loops demonstrated the strong contribution of p53-effector miRNAs in enhancing the p53-mediated tumor suppression program. On the other hand, the direct and indirect targeting of p53, as well as the regulation of its stability and activity by specific microRNAs, underlie the importance of the fine-tuning of p53 pathway, affecting the cell fate of damaged/transformed cells...
December 2, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27917899/biomarker-micrornas-for-diagnosis-prognosis-and-treatment-of-hepatocellular-carcinoma-a-functional-survey-and-comparison
#2
Sijia Shen, Yuxin Lin, Xuye Yuan, Li Shen, Jiajia Chen, Luonan Chen, Lei Qin, Bairong Shen
Hepatocellular Carcinoma (HCC) is one of the most common malignant tumors with high incidence and mortality rate. Precision and effective biomarkers are therefore urgently needed for the early diagnosis and prognostic estimation. MicroRNAs (miRNAs) are important regulators which play functions in various cellular processes and biological activities. Accumulating evidence indicated that the abnormal expression of miRNAs are closely associated with HCC initiation and progression. Recently, many biomarker miRNAs for HCC have been identified from blood or tissues samples, however, the universality and specificity on clinicopathological features of them are less investigated...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27913571/snord126-promotes-hcc-and-crc-cell-growth-by-activating-the-pi3k-akt-pathway-through-fgfr2
#3
Xianlong Fang, Dongmei Yang, Hongping Luo, Shuai Wu, Wenjie Dong, Jing Xiao, Sujing Yuan, Aimin Ni, Kang-Jian Zhang, Xin-Yuan Liu, Liang Chu
Small nucleolar RNA (snoRNA) dysfunctions have been associated with cancer development. SNORD126 is an orphan C/D box snoRNA that is encoded within introns 5-6 of its host gene, cyclin B1-interacting protein 1 (CCNB1IP1) The cancer-associated molecular mechanisms triggered by SNORD126 are not fully understood. Here, we demonstrate that SNORD126 is highly expressed in hepatocellular carcinoma (HCC) and colorectal cancer (CRC) patient samples. SNORD126 increased Huh-7 and SW480 cell growth and tumorigenicity in nude mice...
December 2, 2016: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/27909734/klf4-inhibits-tumor-growth-and-metastasis-by-targeting-microrna-31-in-human-hepatocellular-carcinoma
#4
Chuan Tian, Shanshan Yao, Li Liu, Youcheng Ding, Qingwang Ye, Xiao Dong, Yong Gao, Ning Yang, Qi Li
MicroRNAs (miRNAs or miRs) are short, endogenous non-coding RNA molecules, demonstrating abnormal expression in cancer initiation and progression. In this study, we profiled 18 differentially regulated miRNAs, including miRNA‑31, using miRNA array. Kruppel (or Krüppel)-like factor 4 (Klf4) is a transcription factor and putative tumor suppressor. Both were found to be significantly downregulated in liver cancer tissues and cells. However, little is known about the correlation between Klf4 and miRNA‑31 in hepatocellular carcinoma (HCC)...
November 24, 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27906498/st3gal6-mediates-the-effect-of-mir-26a-on-cell-growth-migration-and-invasion-in-hepatocellular-carcinoma-via-the-akt-mtor-pathway
#5
Mingming Sun, Xuzi Zhao, Leilei Liang, Xufeng Pan, Hao Lv, Yongfu Zhao
Aberrant sialylation profiles on the cell surface have been recognized for their potential diagnostic value in identifying the regulation of tumor properties in several cancers, including hepatocellular carcinoma (HCC). Recently, increasing evidence has suggested that the deregulation of microRNA (miRNA) is a common feature in human cancers. In this study, we found obvious up-regulation of ST3GAL6 both in HCC cell lines and in tissue samples. The altered expression of ST3GAL6 was found to correlate with cell proliferation, migration and invasion ability in HCC...
December 1, 2016: Cancer Science
https://www.readbyqxmd.com/read/27895772/hotair-a-long-non-coding-rna-driver-of-malignancy-whose-expression-is-activated-by-foxc1-negatively-regulates-mirna-1-in-hepatocellular-carcinoma
#6
Dong-Na Su, Shi-Pin Wu, Hong-Tao Chen, Jin-Hua He
Evidence is rapidly accumulating that long non-coding RNAs (lncRNAs) are involved in human tumorigenesis and are dysregulated in multiple cancers, including hepatocellular carcinoma (HCC). lncRNAs can regulate essential pathways that contribute to tumor initiation and progression with tissue specificity, which suggests that lncRNAs may be valuable biomarkers and therapeutic targets. HOX transcript antisense intergenic RNA (HOTAIR) has previously been demonstrated to be an oncogene and a negative prognostic factor in a variety of cancers; however, the factors that contribute to the upregulation of HOTAIR and the interaction between HOTAIR and microRNAs (miRNAs or miRs) are largely unknown...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27893432/microrna-34a-expression-levels-in-serum-and-intratumoral-tissue-can-predict-bone-metastasis-in-patients-with-hepatocellular-carcinoma
#7
Zuo-Lin Xiang, Xiao-Mei Zhao, Li Zhang, Ping Yang, Jia Fan, Zhao-You Tang, Zhao-Chong Zeng
Hepatocellular carcinoma (HCC) patients with bone metastasis (BM) suffer from pain and other symptoms that significantly reduce their quality of life. We screened a microRNA (miRNA) microarray to identify potential serum biomarkers for BM in HCC patients. A miRNA microarray was used to screen for BM-related miRNAs in paired serum samples from HCC patients with BM and from HCC patients without BM. Real-time quantitative polymerase chain reaction (qRT-PCR) was used to quantify candidate miRNAs in serum samples from 106 independent HCC patients...
November 23, 2016: Oncotarget
https://www.readbyqxmd.com/read/27890434/mir-98-inhibits-hepatocellular-carcinoma-cell-proliferation-via-targeting-ezh2-and-suppressing-wnt-%C3%AE-catenin-signaling-pathway
#8
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...
November 24, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27886162/mir-146a-rs2910164-and-hepatocellular-carcinoma-a-meta-analysis
#9
Shu Dong, Ai Y Miao, Wang Lei, Qi W Chen
INTRODUCTION: Single nucleotide polymorphism in miRNAs can alter its expression, thus can lead to the development of cancers. Many studies have explored the association between miR-146a rs2910164 (G>C) polymorphism and hepatocellular carcinoma (HCC) risk, but the results remains inconsistent. So, we performed this pooled analyses in order to get a precise result. EVIDENCE ACQUISITION: Odds ratios (OR) with 95% confidence intervals (CI), calculated by STATA software, was used to determine whether miR-146a rs2910164 polymorphism contributes to the risk of HCC...
November 25, 2016: Minerva Medica
https://www.readbyqxmd.com/read/27882172/downregulated-mir-486-5p-acts-as-a-tumor-suppressor-in-esophageal-squamous-cell-carcinoma
#10
Yunfeng Yi, Xiujuan Lu, Jianming Chen, Changjie Jiao, Jing Zhong, Zhiming Song, Xiaoping Yu, Baoli Lin
microRNAs (miRNAs/miRs) are crucial regulators of gene expression at the post-translational level through promoting mRNA degradation or the repression of translation of target genes. miRs have been confirmed to serve a dominant role in tumor biology. miR-486-5p has been ascertained to be involved in non-small-cell lung cancer, breast cancer and hepatocellular carcinoma; however, the expression and function of miR-486-5p in esophageal squamous cell carcinoma (ESCC) has yet to be elucidated. The present study aimed to analyze the expression levels of miR-486-5p in ESCC tissues and paired normal adjacent tissues, and determine the effects of miR-486-5p on esophageal cancer cells using MTT, wound scratch and apoptosis assays...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27881008/mir-33a-expression-sensitizes-lgr5-hcc-cscs-to-doxorubicin-via-abca1
#11
H Hou, Y Kang, Y Li, Y Zheng, G Ding, J Shang
Cancer stem cells (CSCs) are responsible for the unrestrained cell growth and chemo-resistance of malignant tumors. Reports about miR-33a in different type of cancer are limited, and it remains elusive whether there is a link between miR-33a and chemo-resistance of CSCs. Here we report that Lgr5+ hepatocellular carcinoma (HCC) cells from primary tissues and cell lines behave similarly to CSCs and are chemo-resistant to doxorubicin. Significantly, reduced miR-33a expression is associated with the chemo-resistance of Lgr5+ HCC-CSCs, accompanied by an overexpression of ABCA1 which is identified as target of miR-33a by mainly using miRNA luciferase assay and western-blotting...
November 24, 2016: Neoplasma
https://www.readbyqxmd.com/read/27881003/mir-508-5p-acts-as-an-anti-oncogene-by-targeting-mesdc1-in-hepatocellular-carcinoma
#12
S G Wu, Y J Huang, B Bao, L M Wu, J Dong, X H Liu, Z H Li, X Y Wang, L Wang, B J Chen, W Chen
Hepatocellular carcinoma (HCC) is the third leading cause of cancer associated mortality. Accumulating evidence has shown that microRNAs (miRNAs) act as critical factors for tumor recurrence and metastasis. MiR-508-5p has been reported as a down-regulated miRNA in the primary gastric cancer tissues. However, the role of miR-508-5p on HCC has not been well elucidated. In this study, we observed that miR-508-5p was downregulated in HCC tissues when compared to the non-tumorous tissues. We then demonstrated that overexpression of miR-508-5p attenuated HepG2 cells proliferation and invasion and induced cell apoptosis in vitro...
November 24, 2016: Neoplasma
https://www.readbyqxmd.com/read/27880727/gold-nanoparticles-delivered-mir-375-for-treatment-of-hepatocellular-carcinoma
#13
Hui-Ying Xue, Yong Liu, Jia-Zhi Liao, Ju-Sheng Lin, Bin Li, Wei-Gang Yuan, Robert J Lee, Lei Li, Chuan-Rui Xu, Xing-Xing He
MiR-375 is a tumor suppressor miRNA that is downregulated in hepatocellular carcinoma (HCC). However, due to the lack of effective delivery strategies, miR-375 replacement as a therapy for HCC has not been investigated. In the present study, we have developed a straightforward strategy to deliver miR-375 into HCC cells by assembling miR-375 mimics on the surface of AuNPs and forming AuNP-miR-375 nanoparticles. AuNP-miR-375 exhibits high cellular uptake and preserves miR-375's activities to suppress cellular proliferation, migration/invasion, and colony formation, and to induce apoptosis in HCC cells...
November 17, 2016: Oncotarget
https://www.readbyqxmd.com/read/27879964/decreased-levels-of-mir-34a-and-mir-217-act-as-predictor-biomarkers-of-aggressive-progression-and-poor-prognosis-in-hepatocellular-carcinoma
#14
W Yu, Quan Shen, Qing F Jiang, Yao X Wang, Ke Li, Huan Z Xue
BACKGROUND: MicroRNAs (miRNAs) play key roles in tumor development and progression. The aim of this study was to explore the expression levels of miR-34a and miR-217 in hepatocellular carcinoma (HCC) and to further investigate the clinicopathological and prognostic value of miR-34a and miR-217. METHODS: The expression levels of miR-34a and miR-217 were evaluated using quantitative real-time PCR (qRT-PCR). Associations between these miRNAs expression and clinicopathological features were analyzed...
November 23, 2016: Minerva Medica
https://www.readbyqxmd.com/read/27844181/stard13-promotes-hepatocellular-carcinoma-apoptosis-by-acting-as-a-cerna-for-fas
#15
Hai Zhang, Fang Wang, Yahua Hu
OBJECTIVES: To study the roles of STARD13 in cellular apoptosis of hepatocellular carcinoma (HCC). RESULTS: Quantitative real-time PCR and immunohistochemistry analyses showed that the expression levels of STARD13 and Fas were lower in clinical HCC tissues than in normal tissues and were positively correlated, which is consistent with the results analyzed by The Cancer Genome Atlas (TCGA) data. Patients with higher STARD13 or Fas expression levels had longer overall survival...
November 14, 2016: Biotechnology Letters
https://www.readbyqxmd.com/read/27835990/mir-589-5p-inhibits-map3k8-and-suppresses-cd90-cancer-stem-cells-in-hepatocellular-carcinoma
#16
Xi Zhang, Peng Jiang, Ling Shuai, Kai Chen, Zhonghu Li, Yujun Zhang, Yan Jiang, Xiaowu Li
BACKGROUND: Cancer stem cells (CSCs) are important in the tumorigenesis and progression of hepatocellular carcinoma (HCC). MicroRNAs (miRNAs) play crucial roles regulating CD133(+) and EpCAM(+) CSCs in HCC, although it is unclear whether miRNAs regulate CD90(+) CSCs in HCC. METHODS: The miRNA profiles of CD90(+) and CD90(-) HCC cells were analyzed using a miRNA microarray and quantitative real-time PCR (qRT-PCR). CSC characteristics were examined by qRT-PCR and Western blot of pluripotency-associated genes, clone and sphere formation assay, transwell migration assay, and nude mice tumorigenicity assay...
November 11, 2016: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/27835879/icaritin-inhibits-the-expression-of-alpha-fetoprotein-in-hepatitis-b-virus-infected-hepatoma-cell-lines-through-post-transcriptional-regulation
#17
Chao Zhang, Hui Li, Wei Jiang, Xiaowei Zhang, Gang Li
Although it has showed that icaritin can apparently suppress growth of HCC by reducing the level of AFP, the intrinsic mechanism remains unclear. In this study, we explored the possible mechanism of miRNAs on post-transcriptional regulation of AFP gene, as well as the effects of HBV infection and icaritin in hepatoma cells. The results showed that miR-620, miR-1236 and miR-1270 could bind target sites in the range of 9-18 nt and 131-151 nt downstream of the stop codon in the AFP mRNA 3'-UTR to suppress the expression of AFP...
November 8, 2016: Oncotarget
https://www.readbyqxmd.com/read/27833076/mir-26a-induced-the-suppression-of-tumor-growth-of-cholangiocarcinoma-via-krt19-approach
#18
Ping Wang, Long Lv
BACKGROUND AND AIMS: KRT19 was identified as one of the key biomarkers for distinguishing cholangiocarcinoma (CCA) and hepatocellular carcinoma. The detailed role of miRNAs involved in the oncogenic incident of KRT19 was poor investigated. RESULTS: Based on prediction and validation, miR-26a was inversely correlated with KRT19 in patients' tissues samples and biopsies. Ectopic expression of miR-26a dramatically suppressed cell proliferation and tumor growth in vitro and in vivo...
November 9, 2016: Oncotarget
https://www.readbyqxmd.com/read/27827315/mirna-487a-promotes-proliferation-and-metastasis-in-hepatocellular-carcinoma
#19
Rui-Min Chang, Shuai Xiao, Xiong Lei, Hao Yang, Feng Fang, Lian-Yue Yang
PURPOSE: Hepatocellular carcinoma (HCC) harbors highly metastatic properties, accounting for postoperative recurrence and metastasis. However, the mechanisms for metastasis and recurrence remain incompletely clear. This study aimed to investigate the role of hsa-miR-487a (miR-487a) in promoting the proliferation and metastasis of HCC and to elucidate the underlying molecular mechanisms. EXPERIMENTAL DESIGN: 198 HCC samples were analyzed for association between miR-487a expression and patient clinicopathological features and prognosis...
November 8, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27821810/investigating-the-mechanism-of-hepatocellular-carcinoma-progression-by-constructing-genetic-and-epigenetic-networks-using-ngs-data-identification-and-big-database-mining-method
#20
Cheng-Wei Li, Ping-Yao Chang, Bor-Sen Chen
The mechanisms leading to the development and progression of hepatocellular carcinoma (HCC) are complicated and regulated genetically and epigenetically. The recent advancement in high-throughput sequencing has facilitated investigations into the role of genetic and epigenetic regulations in hepatocarcinogenesis. Therefore, we used systems biology and big database mining to construct genetic and epigenetic networks (GENs) using the information about mRNA, miRNA, and methylation profiles of HCC patients. Our approach involves analyzing gene regulatory networks (GRNs), protein-protein networks (PPINs), and epigenetic networks at different stages of hepatocarcinogenesis...
November 4, 2016: Oncotarget
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