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Lncrna emt

Ga Won Yim, Hee Jung Kim, Lee Kyung Kim, Sang Wun Kim, Sunghoon Kim, Eun Ji Nam, Young Tae Kim
Purpose: The biological function of long non-coding RNAs (lncRNAs) is only partially understood; therefore, in this study, we investigated the expression of the novel HOXA11 antisense (HOXA11as) lncRNA and its oncogenic role in serous ovarian cancer (SOC). Materials and Methods: HOXA11as expression was examined in 129 serous ovarian cancer tissue samples by real time RT-PCR. Clinicopathological factors and patient survival were compared between the high (N = 27) and low HOXA11as expression group (N = 102)...
October 11, 2016: Cancer Research and Treatment: Official Journal of Korean Cancer Association
Zhongwei Li, Pingfu Hou, Dongmei Fan, Meichen Dong, Musong Ma, Hongyuan Li, Ruosi Yao, Yuxin Li, Guannan Wang, Pengyu Geng, Adhanom Mihretab, Dongxu Liu, Yu Zhang, Baiqu Huang, Jun Lu
EZH2 (the Enhancer of Zeste Homolog 2), as a key epigenetic regulator and EMT inducer, participates in a variety of cancer metastasis. EZH2 stability is regulated by several types of post-translational modifications (PTMs).The long non-coding RNAs (lncRNA) have been implicated to have critical roles in multiple carcinogenesis through a wide range of mechanisms, including modulating the stability of proteins. To date, whether the stability of EZH2 protein is regulated by lncRNAs remains unexplored. Here we report the discovery of ANCR modulating the stability of EZH2, and hence in the invasion and metastasis of breast cancer cells...
October 7, 2016: Cell Death and Differentiation
Xiangxiang Zheng, Haibo Hu, Shiting Li
The long non-coding RNA (lncRNA) plasmacytoma variant translocation 1 (PVT1) has been identified as an oncogene in numerous diseases, and aberrant lncRNA PVT1 expression has been associated with the development of cancer. However, the underlying mechanism by which lncRNA PVT1 affects cell invasion in esophageal cancer has been not demonstrated. In the current study, the expression of lncRNA PVT1 was found to be increased in esophageal cancer specimens (n=77) by reverse transcription-quantitative polymerase chain reaction, and was correlated with tumor stage (P=0...
October 2016: Oncology Letters
Ranran Zhang, Heather Hardin, Wei Huang, Jidong Chen, Sofia Asioli, Alberto Righi, Francesca Maletta, Anna Sapino, Ricardo V Lloyd
Long non-coding RNAs (lncRNAs) are important for transcription and for epigenetic or posttranscriptional regulation of gene expression and may contribute to carcinogenesis. Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), an lncRNA involved in the regulation of the cell cycle, cell proliferation, and cell migration, is known to be deregulated in multiple cancers. Here, we analyzed the expression of MALAT1 on 195 cases of benign and malignant thyroid neoplasms by using tissue microarrays for RNA in situ hybridization (ISH) and real-time PCR...
September 30, 2016: Endocrine Pathology
Min Lu, Zhuo Liu, Bo Li, Gang Wang, Dechuan Li, Yuping Zhu
BACKGROUND: Long non-coding RNAs (lncRNAs) have been shown to have crucial regulatory roles in human cancer biology. LncRNA PANDAR is a novel identified lncRNA that was previously reported to be increased in various cancers; however, its effect in colorectal cancer (CRC) remains unknown. The aim of this study was to explore the expression and role of lncRNA PANDAR in CRC. METHODS: The expression of lncRNA PANDAR was examined in CRC samples and cell lines by qRT-PCR...
September 14, 2016: Journal of Cancer Research and Clinical Oncology
Wei Huang, Xiuying Cui, Jianing Chen, Yuhuan Feng, Erwei Song, Jinsong Li, Yujie Liu
Long non-coding RNAs (lncRNAs) have emerged recently as key regulators of tumor development and progression. Our previous study identified an NF-KappaB interacting lncRNA (NKILA) which was negatively correlated with breast cancer metastasis and patient prognosis. However, its clinical significance and potential role in Tongue squamous cell carcinoma (TSCC) remain unclear. Here we show that NKILA is down-regulated in TSCC cancer tissues than that in matched adjacent noncancerous tissues. And low NKILA expression in TSCC is significantly correlated with tumor metastasis and poor patient prognosis...
August 23, 2016: Oncotarget
Jing Lv, Hong-Xia Fan, Xiao-Pei Zhao, Ping Lv, Jing-Yi Fan, Yi Zhang, Min Liu, Hua Tang
HBV infection has been reported to be closely associated with HCC development; however, the underlying mechanisms are unclear. Emerging evidence has indicated that long non-coding RNAs (lncRNAs) play important regulatory roles in the pathogenesis and progression of cancers. To investigate the important role and mechanism of lncRNAs in the progression of HBV-related HCC, we screened lncRNAs in HBV-positive and HBV-negative HCC tissues. We identified a novel lncRNA, lncRNA-Unigene56159, which is highly expressed in HBV-related HCC tissues, and further analysis showed that this lncRNA was induced by HBV in vitro...
September 3, 2016: Cancer Letters
Qiao-Li Lv, Lei Hu, Shu-Hui Chen, Bao Sun, Meng-Long Fu, Chong-Zhen Qin, Qiang Qu, Gui-Hua Wang, Chen-Jie He, Hong-Hao Zhou
Emerging studies show that long noncoding RNAs (lncRNAs) have important roles in carcinogenesis. lncRNA ZEB1 antisense 1 (ZEB1-AS1) is a novel lncRNA, whose clinical significance, biological function, and underlying mechanism remains unclear in glioma. Here, we found that ZEB1-AS1 was highly expressed in glioma tissues, being closely related to clinical stage of glioma. Moreover, patients with high ZEB1-AS1 levels had poor prognoses, with the evidence provided by multivariate Cox regression analysis indicating that ZEB1-AS1 expression could serve as an independent prognostic factor in glioma patients...
2016: International Journal of Molecular Sciences
Jianjian Zheng, Fujun Yu, Peihong Dong, Limei Wu, Yuan Zhang, Yanwei Hu, Lei Zheng
Epithelial-mesenchymal transition (EMT) process is considered as a key event in the activation of hepatic stellate cells (HSCs). Hedgehog (Hh) pathway is known to be required for EMT process. Long non-coding RNAs (lncRNAs) have been reported to be involved in a wide range of biological processes. Plasmacytoma variant translocation 1 (PVT1), a novel lncRNA, is often up-regulated in various human cancers. However, the role of PVT1 in liver fibrosis remains undefined. In this study, PVT1 was increased in fibrotic liver tissues and activated HSCs...
August 30, 2016: Oncotarget
Baoyu He, Weiming Li, Yingfen Wu, Fang Wei, Zhaojian Gong, Hao Bo, Yumin Wang, Xiayu Li, Bo Xiang, Can Guo, Qianjin Liao, Pan Chen, Xuyu Zu, Ming Zhou, Jian Ma, Xiaoling Li, Yong Li, Guiyuan Li, Wei Xiong, Zhaoyang Zeng
Epstein-Barr virus (EBV) infection is causatively related to a variety of human cancers, including nasopharyngeal carcinoma (NPC) and gastric cancer (GC). EBV encodes 44 mature miRNAs, a number of which have been proven to promote carcinogenesis by targeting host genes or self-viral genes. However, in this study, we found that an EBV-encoded microRNA, termed EBV-miR-BART6-3p, inhibited EBV-associated cancer cell migration and invasion including NPC and GC by reversing the epithelial-mesenchymal transition (EMT) process...
2016: Cell Death & Disease
Xu Han, Lingling Wang, Yu Ning, Shuang Li, Zhenjun Wang
BACKGROUND AND OBJECTIVE: Long non-coding RNAs can regulate tumorigenesis of various cancers. Dys-regulation of lncRNA-AFAP1-AS1 has not been studied in colorectal carcinoma (CRC). This study was to examine the function involvement of AFAP1-AS1 in tumor growth and metastasis of CRC. METHODS: Relative expression of AFAP1-AS1 in CRC tissues and CRC cells lines was determined using quantitative real-time PCR (qRT-PCR). Functional involvement of AFAP1-AS1 in tumor proliferation and metastasis was evaluated in AFAP1-AS1-specific siRNA-treated CRC cells and in CRC cell xenograft...
2016: Biological Research
Liyun Miao, Zhen Huang, Zhang Zengli, Hui Li, Qiufang Chen, Chenyun Yao, Hourong Cai, Yonglong Xiao, Hongping Xia, Yongsheng Wang
Although recent evidence shows that long noncoding RNAs (lncRNAs) are involved in the regulation of gene expression and cancer progression, the understanding of the role of lncRNAs in lung cancer metastasis is still limited. To identify novel lncRNAs in non-small cell lung cancer (NSCLC), we profile NSCLC tumor and matched normal samples using GeneChip® Human Gene 2.0 ST Array, which provides the most accurate, sensitive, and comprehensive measurement of protein coding and lncRNA transcripts. We identified a panel of key factors dysregulated in lung cancer...
August 26, 2016: Oncotarget
Juliane Colditz, Benjamin Rupf, Caroline Maiwald, Aria Baniahmad
Inhibition of the androgen receptor (AR) is a major target of prostate cancer (PCa) therapy. However, prolonged androgen deprivation results eventually in castration-resistant PCa (CRPC) with metastasis and poor survival. Emerging evidence suggests that epithelial-mesenchymal transition (EMT) may facilitate castration-resistance and cancer metastasis in PCa. The human androgen-dependent, castration-sensitive prostate cancer (CSPC) cell line LNCaP and the CRPC cell line C4-2 are often used as a model system for human PCa...
October 2016: Molecular and Cellular Biochemistry
Jinfeng Zheng, Shaoxiong Zhao, Xiaolong He, Zhili Zheng, Weibin Bai, Youlin Duan, Shanlin Cheng, Juncai Wang, Xucheng Liu, Gang Zhang
Recently, long noncoding RNAs (lncRNAs) have been shown to have critical regulatory roles in human cancer biology. LncRNA CCAT2 is a novel identified lncRNA that was previously reported to be up-regulated in different cancers, however, its role in prostate cancer remains unclear. The aim of this study was to investigate the expression and role of lncRNA CCAT2 in prostate cancer. The expression levels of lncRNA CCAT2 in PCa tissues and cell lines (DU145 and 22RV1) were evaluated by quantitative real-time PCR (qRT-PCR), and its association with prognosis of patients was analyzed by statistical analysis...
August 21, 2016: Biochemical and Biophysical Research Communications
Yuan Li, Shengkai Huang, Yan Li, Weilong Zhang, Kun He, Mei Zhao, Hong Lin, Dongdong Li, Honggang Zhang, Zhaoxu Zheng, Changzhi Huang
Increasing evidence suggests that long non-coding RNAs (lncRNAs) are aberrantly expressed in colorectal cancer (CRC); however, only few CRC-related lncRNAs have been characterized. In this study, we aimed to dig out potential dysregulated lncRNAs that are highly involved in CRC development. Using a lncRNA-mining approach, we performed lncRNA expression profiling in a large CRC cohort from Gene Expression Ominus (GEO), GSE39582 test series (N = 585). We identified 31 downregulated lncRNAs and 16 upregulated lncRNAs from the GSE39582 test series patients (566 tumor patients and 19 normal controls)...
August 23, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
Ying Wu, Hui Lyu, Hongbing Liu, Xuefei Shi, Yong Song, Bolin Liu
Long noncoding RNA (lncRNA) plays pivotal roles in cancer development. To date, only a small number of lncRNAs have been characterized at functional level. Here, we discovered a novel lncRNA termed GAS5-AS1 as a tumor suppressor in non-small cell lung cancer (NSCLC). The expression of GAS5-AS1 in NSCLC tumors was much lower than that in the adjacent normal lung tissues. The reduced GAS5-AS1 was significantly correlated with larger tumors, higher TNM stages, and lymph node metastasis in NSCLC patients. While ectopic expression or specific knockdown of GAS5-AS1 had no effect on proliferation, cell cycle progression, and apoptosis, it dramatically decreased or increased, respectively, NSCLC cell migration and invasion...
2016: Scientific Reports
C Battistelli, C Cicchini, L Santangelo, A Tramontano, L Grassi, F J Gonzalez, V de Nonno, G Grassi, L Amicone, M Tripodi
The transcription factor Snail is a master regulator of cellular identity and epithelial-to-mesenchymal transition (EMT) directly repressing a broad repertoire of epithelial genes. How chromatin modifiers instrumental to its activity are recruited to Snail-specific binding sites is unclear. Here we report that the long non-coding RNA (lncRNA) HOTAIR (for HOX Transcript Antisense Intergenic RNA) mediates a physical interaction between Snail and enhancer of zeste homolog 2 (EZH2), an enzymatic subunit of the polycomb-repressive complex 2 and the main writer of chromatin-repressive marks...
July 25, 2016: Oncogene
Shou-Hua Wang, Ming-Di Zhang, Xiao-Cai Wu, Ming-Zhe Weng, Di Zhou, Zhi-Wei Quan
LncRNA-ROR has been reported to be involved in many kinds of human cancers. However, whether LncRNA-ROR is involved in gallbladder cancer progression remains largely unknown. The objective of this study is to investigate the role of LncRNA-ROR in gallbladder cancer. We found that LncRNA-ROR expression level was upregulated in gallbladder cancer tissues (P < 0.05) and was significantly associated with tumor sizes (P < 0.05) and lymph node metastasis (P < 0.05). High expression of LncRNA-ROR was significantly associated with poor prognosis in gallbladder cancer patients (P < 0...
July 23, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
Jianlu Kong, Wenjie Sun, Chen Li, Ledong Wan, Shuo Wang, Yihua Wu, Enping Xu, Honghe Zhang, Maode Lai
Long non-coding RNAs (lncRNAs) play crucial roles in many biological and pathological processes, including tumor metastasis. Here we reported a novel lncRNA, LINC01133 that was downregulated by TGF-β, which could inhibit epithelial-mesenchymal transition (EMT) and metastasis in colorectal cancer (CRC) cells. An alternative splicing factor SRSF6 was identified to directly interact with LINC01133, and SRSF6 promoted EMT and metastasis in CRC cells independent of LINC01133 And we confirmed that the EMT process was regulated by LINC01133 in CRC cells dependent on the presence of SRSF6...
October 1, 2016: Cancer Letters
Yu Fan, Yan-Fen Wang, Hua-Fang Su, Na Fang, Chen Zou, Wen-Feng Li, Zheng-Hua Fei
BACKGROUND: Recent evidence indicates that long noncoding RNAs (lncRNAs) play pivotal roles in the regulation of cellular processes and are found to be dysregulated in a variety of cancers. LINC00261 is an lncRNA that is aberrantly expressed in gastric cancer (GC). The clinical role of LINC00261 in GC and molecular mechanisms remains to be found. METHODS: Real-time polymerase chain reaction (PCR) was used to examine LINC00261 expression in GC cell lines/tissues compared with normal epithelial cells/adjacent non-tumorous tissues...
2016: Journal of Hematology & Oncology
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