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lncRNA target

M Di Sanzo, R Chirillo, I Aversa, F Biamonte, G Santamaria, E D Giovannone, M C Faniello, G Cuda, F Costanzo
PURPOSE: The heavy subunit of the iron storage protein ferritin (FHC) is essential for the intracellular iron metabolism and, at the same time, it represents a central hub of iron-independent pathways, such as cell proliferation, angiogenesis, p53 regulation, chemokine signalling, stem cell expansion, miRNAs expression. In this work we have explored the ability of FHC to modulate gene expression in K562 cells, through the up-regulation of the lncRNA H19 and its cognate miR-675. MATERIALS AND METHODS: Targeted silencing of FHC was performed by lentiviral-driven shRNA strategy...
March 12, 2018: Gene
Hao Wang, Mingxia Zhang, Guoping Sun
This study aimed to elucidate the roles of long non-coding RNA Nuclear Paraspeckle Assembly Transcript 1 (NEAT1) in gastric cancer. The expression of NEAT1 in gastric cancer tissues and cells was determined. NEAT1 was then overexpressed and suppressed in BGC-823 cells in vitro to further explore the effects of NEAT1 on cell proliferation, migration, and invasion. In addition, the regulatory relationship among NEAT1, miR-335-5p and Rho Associated Coiled-Coil Containing Protein Kinase 1 (ROCK1) was investigated...
March 5, 2018: Die Pharmazie
Jianwen Long, Qiqige Menggen, Qimige Wuren, Quan Shi, Xianming Pi
BACKGROUND Malignant melanoma is a class of malignant tumors derived from melanocytes. lncRNAs have been considered as pro-/anti-tumor factors in progression of cancers. The function of lncRNA TUG1 on growth of melanoma was investigated in this study. MATERIAL AND METHODS The TUG1 and miR-129-5p expression were examined via qRT-PCR. The protein expression was investigated by Western blotting assay. Luciferase reporter assay was used to assess if lncRNA TUG1 can bind to miR-129-5p and if miR-129-5p can target AEG1 mRNA...
March 15, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Zhengting Chen, Xinyi Cai, Li Chang, Yaoxiong Xia, Li Wang, Yu Hou, Lan Li, Dingguo Pan, Furong Li, Shan Liu, Wei Xiong, Wenhui Li
Concurrent radiotherapy and chemotherapy is a widely used, comprehensive treatment for rectal cancer. By studying the impact of concurrent chemoradiotherapy on the invasion and migration of colorectal cancer (CRC) cells and researching the associated molecular mechanisms, the present study aimed to provide a novel method to improve the therapeutic effect of this treatment against CRC. Human HCT116 and HT29 CRC cells were simultaneously treated with 4 Gy of 6 MV X-rays and 10 µmol/l 5-fluorouracil to establish a residual cell model...
April 2018: Oncology Letters
Jie Zhou, Wei Xiang, Shenjie Li, Qi Hu, Tao Peng, Ligang Chen, Yang Ming
The incidence rate of gliomas is the highest among primary brain tumors. Although the understanding of the molecular pathology of glioma has improved during the previous two decades, effective therapies are not yet available to treat these tumors. Previous studies have indicated that long non-coding RNAs (lncRNAs) have a close association with glioma, suggesting that lncRNAs may be potential targets for the development of novel treatments for glioma. The present review summarized the latest studies on the dysregulation of lncRNAs in glioma, and discussed their potential use in the diagnosis, prognosis and therapies of glioma...
April 2018: Oncology Letters
Shanshan Sun, Yansheng Wu, Wenyu Guo, Feng Yu, Lingping Kong, Yu Ren, Yu Wang, Xiaofeng Yao, Chao Jing, Chao Zhang, Mingyang Liu, Yuqing Zhang, Minghui Zhao, Zhaoqing Li, Chuanqiang Wu, Yu Qiao, Jingxuan Yang, Xudong Wang, Lun Zhang, Min Li, Xuan Zhou
PURPOSE: Phosphotidylinositol-3-kinase (PI3K)and signal transducers and activators of transcription 3 (STAT3) are frequently activated in cancer progression. However, little is known about the underlying mechanisms by which PI3K and STAT3 regulate HNSCC growth. The lncRNA HOX transcript antisense RNA (HOTAIR) was found to modulate the progression of head and neck squamous cell cancer (HNSCC). In this study, we attempted to establish the correlation of PI3K-STAT3-HOTAIR signaling with the progression of HNSCC and its sensitivity towards platinum-based and targeted anti-EGFR combination therapy...
March 14, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
Xiaomin Fu, Xiaoyan Zhu, Fujun Qin, Yong Zhang, Jizhen Lin, Yuechao Ding, Zihe Yang, Yiman Shang, Li Wang, Qinxian Zhang, Quanli Gao
BACKGROUND: Liver tumor initiating cells (TICs) have self-renewal and differentiation properties, accounting for tumor initiation, metastasis and drug resistance. Long noncoding RNAs are involved in many physiological and pathological processes, including tumorigenesis. DNA copy number alterations (CNA) participate in tumor formation and progression, while the CNA of lncRNAs and their roles are largely unknown. METHODS: LncRNA CNA was determined by microarray analyses, realtime PCR and DNA FISH...
March 14, 2018: Molecular Cancer
Benjamin A Farber, Gadi Lalazar, Elana P Simon, William J Hammond, David Requena, Umesh K Bhanot, Michael P La Quaglia, Sanford M Simon
Fibrolamellar hepatocellular carcinoma (FLC) is a rare primary liver cancer found in adolescents and young adults without underlying liver disease. A deletion of ~400 kD has been found in one copy of chromosome 19 in the tumor tissue of all patients tested. This produces a fusion of the genes DNAJB1 and PRKACA which, in turn, produces a chimeric transcript and protein. Transcriptomic analysis of the tumor has shown upregulation of various oncologically relevant pathways, including EGF/ErbB, Aurora Kinase A, pak21 and wnt...
February 13, 2018: Oncotarget
Zhenzhen Chen, Yanfeng Gao, Lintong Yao, Yating Liu, Lan Huang, Zhongyi Yan, Wenshan Zhao, Pingping Zhu, Haibo Weng
Liver tumor-initiating cells (TICs), the drivers for liver tumorigenesis, accounts for liver tumor initiation, metastasis, drug resistance and relapse. Wnt/β-catenin signaling pathway emerges as a critical modulator in liver TIC self-renewal. However, the molecular mechanism of Wnt/β-catenin initiation in liver tumorigenesis and liver TICs is still elusive. Here, we examined the expression pattern of 10 Wnt receptors (FZD1-FZD10), and found only FZD6 is overexpressed along with liver tumorigenesis. What's more, a divergent lncRNA of FZD6, termed lncFZD6, is also highly expressed in liver cancer and liver TICs...
March 14, 2018: Oncogene
Cheng Sun, Lining Huang, Zhenglong Li, Kaiming Leng, Yi Xu, Xingming Jiang, Yunfu Cui
BACKGROUND: Long non-coding RNAs (lncRNAs), which are a portion of non-protein-coding RNAs (ncRNAs), have manifested a paramount role in the pathophysiology of human diseases, particularly in pathogenesis and progression of disease. Myocardial infarction associated transcript (MIAT), which was recently found to demonstrate aberrant expression in various diseases, such as myocardial infarction, schizophrenia, ischemic stroke, diabetic complications, age-related cataract and cancers, is a novel disease-related lncRNA...
March 13, 2018: Journal of Biomedical Science
Zhi Ruan, Hui Ma, Jing Li, Huiyong Liu, Haoruo Jia, Feng Li
Intervertebral disc degeneration is a complex disease involving genetic and environmental factors and multiple cellular processes. The role and expression of the lncRNA NEAT1 were assessed in intervertebral disc degeneration. NEAT1 expression was assessed in degenerative and control nucleus pulposus using RT-PCR. Western blotting and RT-PCR were also used to investigate p53 and p21 levels in nucleus pulposus tissues. NEAT1 function in degenerative nucleus pulposus cells was assessed with gain- and loss-of-function experiments...
January 1, 2018: Experimental Biology and Medicine
Zhipeng Zhang, Hongxi Chen, Yebin Lu, Tiecheng Feng, Weijia Sun
This study examined the effects of long non‑coding RNA (lncRNA) BC032020 on the development of human pancreatic ductal adenocarcinoma (PDAC), and the potential molecular mechanisms responsible for these effects. The expression of BC032020 was assessed in 20 pairs of PDAC tumor tissues and adjacent normal tissues. The overexpression of BC032020 was enforced in the AsPC‑1 and PANC‑1 cells, and the effects on cell proliferation, cell cycle distribution, cell migration and apoptosis were determined. We also analyzed the functions of zinc finger protein 451 (ZNF451), which shares a gene sequence with two exons of BC032020 and a non‑coding region with another two exons, in PDAC cells...
April 2018: International Journal of Oncology
Shulin Fan, Chunni Fan, Ning Liu, Keke Huang, Xuedong Fang, Keren Wang
Long non-coding RNAs (lncRNAs) are non‑coding RNAs that are >200 nucleotides in length. Recent studies have identified a number of lncRNAs with critical roles in various biological processes including tumorigenesis. Zinc finger antisense 1 (ZFAS1) is a lncRNA that has recently been reported to be involved in the progression of several human cancers. However, the biological function of ZFAS1 in breast cancer remains to be elucidated. In order to determine the effect of ZFAS1 in breast cancer cells, reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) was performed to measure ZFAS1 expression in cells from breast cancer cell lines...
March 9, 2018: Molecular Medicine Reports
Chao Li, Runchen Miao, Jingyao Zhang, Kai Qu, Chang Liu
Accumulating evidence highlights the fact that long non‑coding RNAs (lncRNAs) serve as critical factors in the growth of hepatocellular carcinoma (HCC). The dysregulation of lncRNA KCNQ1 opposite strand/antisense transcript 1 (KCNQ1OT1) has been reported in numerous human benign diseases. However, the role of KCNQ1OT1 in human HCC remains poorly understood. In this study, we demonstrated that the expression of KCNQ1OT1 was abnormally increased in HCC tissues. The ectopic high expression of KCNQ1OT1 was associated with liver cirrhosis, a larger tumor size, an advanced TNM stage, and a worse overall survival and tumor‑free survival...
March 12, 2018: International Journal of Oncology
Banglun Qian, Xiang Wang, Chao Mao, Yiqun Jiang, Ying Shi, Ling Chen, Shuang Liu, Bin Wang, Shu Pan, Yongguang Tao, Hongcan Shi
BACKGROUND: For many years, lung cancer has been the most common and deadly cancer worldwide. Early diagnosis of non-small cell lung cancer (NSCLC) in particular is very difficult because the symptoms are often ignored. The five-year survival rate is very low despite great improvements to therapy. Thus, there is an urgent need to identify prognostic biomarkers and target molecules for the clinical diagnosis and individualized treatment of NSCLC. METHODS: We performed quantitative real-time PCR to determine the expression levels of the long non-coding RNA (lncRNA) linc01433 in NSCLC and normal matched lung tissue...
March 13, 2018: Thoracic Cancer
Guangde Zhang, Haoran Sun, Yawei Zhang, Hengqiang Zhao, Wenjing Fan, Jianfei Li, Yingli Lv, Qiong Song, Jiayao Li, Mingyu Zhang, Hongbo Shi
Accumulating evidence has demonstrated that long non-coding RNAs (lncRNAs) acting as competing endogenous RNAs (ceRNAs) play important roles in initiation and development of human diseases. However, the mechanism of ceRNA regulated by lncRNA in myocardial infarction (MI) remained unclear. In this study, we performed a multi-step computational method to construct dysregulated lncRNA-mRNA networks for MI occurrence (DLMN_MI_OC) and recurrence (DLMN_MI_Re) based on "ceRNA hypothesis". We systematically integrated lncRNA and mRNA expression profiles and miRNA-target regulatory interactions...
December 2018: Cell Death Discovery
Mu-Lin Liu, Qiao Zhang, Xiao Yuan, Long Jin, Li-Li Wang, Tao-Tao Fang, Wen-Bin Wang
AIM: To investigate the role of long noncoding RNA (lncRNA) RP4 in colorectal cancer. METHODS: Lentivirus-mediated lncRNA RP4 overexpression and knockdown were performed in the colorectal cancer cell line SW480. Cell proliferation, tumor growth, and early apoptosis were evaluated by a cell counting kit-8 assay, an in vivo xenograft tumor model, and annexin V/propidium iodide staining, respectively. Analysis of the lncRNA RP4 mechanism involved assessment of the association of its expression with miR-7-5p and the SH3GLB1 gene...
March 7, 2018: World Journal of Gastroenterology: WJG
Ye-Fen Lu, Xue-Li Cai, Zheng-Zheng Li, Jing Lv, Yi-An Xiang, Jian-Jun Chen, Wei-Jing Chen, Wei-Yan Sun, Xiu-Mei Liu, Jian-Bo Chen
BACKGROUND/AIMS: Long noncoding RNAs (lncRNAs) have recently emerged as novel and potentially promising therapeutic targets in various cancers. However, the expression pattern and biological function of lncRNAs in glioma remain largely elusive. In the present study, we investigated the functional role of an lncRNA, small nucleolar RNA host gene 16 (SNHG16), in glioma. METHODS: The expression levels of SNHG16 and miR-4518 were measured using qRT-PCR. The relationship between the levels of SNHG16 and clinicopathologic features were statically analyzed...
March 6, 2018: Cellular Physiology and Biochemistry
Xuanxuan Wang, Hai Liu, Liming Shi, Xiaoli Yu, Yanjun Gu, Xiaonan Sun
LncRNA in non-homologous end joining (NHEJ) pathway 1 (LINP1) is an lncRNA which promotes therapeutic resistance in triple-negative breast cancer (TNBC). However, the expression and function of LINP1 in cervical cancer is not yet well-understood. In this study, we evaluated the expression levels of LINP1 in tumor tissues and cell lines of cervical cancer. We found that LINP1 associates with NHEJ proteins (Ku80 and DNA-PKcs). LINP1 translocates from cytosol to nucleus in response to irradiation. In addition, LINP1 knockdown significantly increases the levels of cleaved caspase3 and PARP, leading to enhanced cell apoptosis after ionizing radiation (IR)...
March 12, 2018: Cell Cycle
Kevin M Koo, Shuvashis Dey, Matt Trau
Simultaneous analysis of messenger RNA (mRNA), microRNA (miRNA), and long noncoding RNA (lncRNA)-multi-RNA-type profiling-is increasingly crucial in cancer diagnostics. Yet, rapid multi-RNA-type profiling is challenging due to enzymatic amplification reliance and RNA-type-dependent characteristics. Here, a nanodevice is reported to uniquely use alterable alternating current electrohydrodynamic (ac-EHD) forces to enhance probe-target hybridization prior to direct native RNA target detection, without target amplification or surface functionalization...
March 12, 2018: Small
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