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colorectal cancer AND lncRNA

Qiaowei Fan, Bingrong Liu
Colorectal cancer (CRC) is one of the most leading causes of cancer deaths worldwide. In the study, we aimed to identify key long non-coding RNAs (lncRNAs) significantly associated with prognosis of CRC and develop an expression-based lncRNA signature to provide surviv-al risk prediction for CRC patients. LncRNA expression profiles and clinical information of CRC patients were collected from The Cancer Genome Atlas (TCGA) database. 618 differen-tially expressed lncRNAs were identified between CRC and normal tissues...
December 11, 2017: Journal of Cellular Biochemistry
Yifan Zou, Yuantang Zhong, Junjie Wu, Huizhong Xiao, Xintao Zhang, Xinhui Liao, Jianfa Li, Xuhua Mao, Yuchen Liu, Fuyou Zhang
OBJECTIVES: Long non-coding RNAs (lncRNAs) are characterized as a group of RNAs that more than 200 nucleotides in length and have no protein-coding function. More and more evidences provided that lncRNAs serve as key molecules in the development of cancer. Deregulation of lncRNAs functions as either oncogenes or tumour suppressor genes in various diseases. Recently, increasing studies about PANDAR in cancer progression were reported. In our review, we will focus on the current research on the character of PANDAR include the clinical management, tumour progression and molecular mechanisms in human cancers...
December 10, 2017: Cell Proliferation
An-Wei Wei, Li-Fang Li
Emerging evidences have proved that long non-coding RNAs (lncRNAs) act as important molecular regulator in the tumor progression, including colorectal cancer (CRC). LncRNA SOX21-AS1 has been verified as oncogenic molecular in other cancers and tumorigenesis. In present study, our team investigates the clinical characteristic and molecular function in CRC carcinogenesis. Results showed that lncRNA SOX21-AS1 expression was significantly over-expressed in CRC tissue samples and cells. The aberrant over-expression of SOX21-AS1 indicated poor prognosis of CRC patients...
December 4, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Xiang Jin, Yinghui Guan, Hui Sheng, Yang Liu
We investigated the transcriptional mechanism underlying lung cancer development. RNA sequencing analysis was performed on blood samples from lung cancer cases and healthy controls. Differentially expressed microRNAs (miRNAs), circular RNAs (circRNAs), mRNAs (genes), and long non-coding RNAs (lncRNA) were identified, followed by pathway enrichment analysis. Based on miRNA target interactions, a competing endogenous network was established and significant nodes were screened. Differentially expressed transcriptional factors were retrieved from the TRRUST database and the transcriptional factor regulatory network was constructed...
October 31, 2017: Oncotarget
Weihao Li, Kai Huang, Fengbiao Wen, Guanghui Cui, Haizhou Guo, Song Zhao
Lung cancer remains the leading cause of cancer-related deaths throughout the world. In spite of great effort for the research of carcinogenesis, the molecular mechanisms of lung cancer remain unclear. In current study, we investigated the possible association between susceptibility of lung cancer and GAS5 rs145204276, which showed contradictory roles in carcinogenesis of colorectal cancer and hepatocellular carcinoma. We found that the del allele was significantly associated with 21% decreased risk of lung cancer (OR=0...
October 31, 2017: Oncotarget
Bo Li, Chong Shi, Jingming Zhao, Bai Li
Colorectal cancer is one of the most common malignancies, which has seriously affected people's health. Abnormal expression of long non-coding RNAs and microRNAs are closely related to the process of occurrence, development, invasion and metastasis of colorectal cancer. However, the effect of lnc CCAT1 on human HCT-116/HCT-8 cells and its potential mechanism were investigated. In present study, differential expression of CCAT1, miR-410 and ITPKB were detected in colon cancer tissues and adjacent parts. Then the prediction programs were applied to predict the target genes of miR-410...
November 3, 2017: Oncotarget
Dong-Liang Chen, Yun-Xin Lu, Jia-Xing Zhang, Xiao-Li Wei, Feng Wang, Zhao-Lei Zeng, Zhi-Zhong Pan, Yun-Fei Yuan, Feng-Hua Wang, Helene Pelicano, Paul J Chiao, Peng Huang, Dan Xie, Yu-Hong Li, Huai-Qiang Ju, Rui-Hua Xu
Long non-coding RNAs (lncRNAs) are involved in the pathology of various tumors, including colorectal cancer (CRC). However, the role of lncRNA in CRC liver metastasis remains unclear. Methods: a microarray was performed to identify the differentially expressed lncRNAs between CRC tissues with and without liver metastasis. Survival analysis was evaluated using the Kaplan-Meier method and assessed using the log-rank test. In vitro and in vivo assays were preformed to explore the biological effects of the differentially expressed lncRNA in CRC cells...
2017: Theranostics
Shuangjie Wu, Jun Liu, Xinhai Wang, Mengjun Li, Zongyou Chen, Yifan Tang
Long non-coding RNAs (lncRNAs), which have emerged as important regulatory RNA molecules that have been implicated in carcinogenesis and cancer progression, may also serve as novel potential biomarkers for cancer diagnosis and prognosis. Our previous analysis has identified the lncRNA GHRLOS, the ghrelin antisense strand non-coding RNA gene, as one of the hub genes in the co-expression network of differentially expressed lncRNAs/mRNAs in colorectal cancer (CRC). Here, we further evaluate the expression of GHRLOS in CRC and explore its clinical significance...
2017: Journal of Cancer
Junling Zhang, Yong Jiang, Jing Zhu, Tao Wu, Ju Ma, Chuang Du, Shanwen Chen, Tengyu Li, Jinsheng Han, Xin Wang
The aim of the present study was to explore the clinicopathological and prognostic significance of long non-coding RNA (lncRNA) colon cancer-associated transcript 2 (CCAT2) expression in human colorectal cancer (CRC). Expression levels of lncRNA CCAT2 in CRC, adjacent non-tumor and healthy colon mucosa tissues were detected by quantitative polymerase chain reaction. The disease-free survival and overall survival rates were evaluated using the Kaplan-Meier method, and multivariate analysis was performed using Cox proportional hazard analysis...
December 2017: Oncology Letters
Shuping Xie, Ge Quanxing, Xueyan Wang, Xinfang Sun, Yuhua Kang
The incidence and mortality rate of colorectal cancer (CRC) have been significantly increasing. However, mechanisms involved in CRC progression are still unclear. LncRNA ZFAS1 has been verified as oncogenic molecular in a series of tumors, including CRC. However, the underlying mechanism of ZFAS1 in CRC carcinogenesis remains unclear. In the present study, our data showed that ZFAS1 expression was significantly upregulated in CRC tissues and cell lines. Correlation analysis showed that high ZFAS1 expression was significantly associated with Helicobacter pylori infection, lymph nodes metastasis, advanced TNM stage and poor overall survival of CRC patients...
November 27, 2017: Cell Cycle
Yongzhi Yang, Peng Junjie, Cai Sanjun, Yanlei Ma
Identification of the colorectal adenoma-carcinoma sequence with its corresponding genetic and epigenetic alterations has significantly increased our knowledge of the etiopathogenesis of colorectal cancer (CRC). However, the molecular mechanisms of colorectal carcinogenesis and metastasis haven't been clearly elucidated. Long non-coding ribonucleic acids (lncRNAs) are key participants of gene regulations rather than "noises". Accumulative studies have implicated that the aberrant expressions of lncRNAs are tightly corelated to CRC screening, diagnosis, prognosis and therapeutic outcomes...
2017: Journal of Cancer
Yongfu Xiong, Rong Wang, Linglong Peng, Wenxian You, Jinlai Wei, Shouru Zhang, Xingye Wu, Jinbao Guo, Jun Xu, Zhenbing Lv, Zhongxue Fu
Although the outcome of patients with colorectal cancer (CRC) has improved significantly, prognosis evaluation still presents challenges due to the disease heterogeneity. Increasing evidences revealed the close correlation between aberrant expression of certain RNAs and the prognosis. We envisioned that combined multiple types of RNAs into a single classifier could improve postoperative risk classification and add prognostic value to the current stage system. Firstly, differentially expressed RNAs including mRNAs, miRNAs and lncRNAs were identified by two different algorithms...
October 17, 2017: Oncotarget
Wei Zhang, Weitang Yuan, Junmin Song, Shijun Wang, Xiaoming Gu
BACKGROUND/AIMS: Increasing evidence demonstrates that long non-coding RNAs (lncRNAs) regulate diverse cellular processes and cancer progression. Whether lncRNAs play any functional role in colorectal carcinoma (CRC) remains largely unknown. The aim of this study was to investigate the role of lncRNA CPS1 intronic transcript 1 (CPS1-IT1) in CRC. METHODS: Expression of CPS1-IT1 was initially assessed in human CRC tissues and in a series of CRC cell lines. The correlations between CPS1-IT1 levels and survival outcomes were analyzed to elucidate the clinical significance of CPS1-IT1 in CRC...
November 17, 2017: Cellular Physiology and Biochemistry
Xin Zhang, Yumin Xiong, Fengying Tang, Ying Bian, Yanhui Chen, Fengli Zhang
Long non-coding RNAs (lncRNAs) have been identified to play critical roles in tumorigenesis. LncRNA HNF1A-AS1 has been suggested to act as an oncogene and serves as a novel prognostic biomarker for various cancer. However, the biological role and clinical significance of lncRNA HNF1A-AS1 in colorectal cancer (CRC) have yet to be fully elusive. Therefore, the present study was designed to determine the expression of lncRNA HNF1A-AS1 in patients with CRC, the role of lncRNA HNF1A-AS1 in CRC cells, as well as the underlying regulatory mechanisms...
October 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Yang Xiao, Usenko Alexander Yurievich, Smorzhevskyi Valentyn Yosypovych
A major reason for the failure of advanced colorectal cancer (CRC) treatment is the occurrence of chemoresistance to 5-fluorouracil (5FU)-based treatment. Recent studies have shown that long non-coding RNAs (lncRNAs) are critical regulators in chemoresistance. By using the next generation HiSeq sequencing assay, we identified lncRNAs showing differential expression levels in 5FU resistant and non-resistant CRC patients. RT-qPCR was then performed for validation in tissues and serum samples, and lncRNA XIST was verified to be up-regulated in non-responding patients and have considerable diagnostic potential to identify responding patients from non-responding patients...
October 10, 2017: Oncotarget
Ke Peng, Ruiqi Liu, Yiyi Yu, Li Liang, Shan Yu, Xiaojing Xu, Tianshu Liu
BACKGROUND: Cetuximab is one of the most widely used epidermal growth factor receptor (EGFR) inhibitors to treat patients with metastatic colorectal cancer (mCRC) harboring wild-type of RAS/RAF status. However, primary and acquired resistance to cetuximab is often found during target therapy. METHODS: To gain insights into the functions of long non-coding RNA (lncRNA) in cetuximab resistance, we used a lncRNA-mining approach to distinguish lncRNA specific probes in Affymetrix HG-U133A 2...
November 10, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
S N Nasir, N Abu, N S Ab Mutalib, M Ishak, I Sagap, L Mazlan, I M Rose, R Jamal
PURPOSE: Colorectal cancer (CRC) is one of the most widely diagnosed cancers in men and women worldwide. With the advancement of next-generation sequencing technologies, many studies have highlighted the involvement of long non-coding RNAs (lncRNAs) in cancer development. Growing evidence demonstrates that lncRNAs play crucial roles in regulating gene and protein expression and are involved in various cancers, including CRC. The field of lncRNAs is still relatively new and a lot of novel lncRNAs have been discovered, but their functional roles are yet to be elucidated...
November 2, 2017: Clinical & Translational Oncology
Dazun Shi, Yu Zhang, Rong Lu, Yi Zhang
Among the first found cancer-related long non-coding RNAs (lncRNAs), MALAT1 is one that involves in the development and progression of some tumors. MALAT1 can be aberrantly expressed in hepatocellular carcinoma, cervical, breast, ovarian cancers, as well as colorectal cancer. The paper aims to make certain the function of MALAT1 in human choriocarcinoma cell lines by investigating the detailed effects and molecular mechanisms. Being specifically upregulated in choriocarcinoma cell lines, the under-researched lncRNA-MALAT1 promoted choriocarcinoma cell growth by targeting miR-218...
October 30, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Chunhui Cui, Duanyang Zhai, Lianxu Cai, Qiaobin Duan, Lang Xie, Jinlong Yu
Purpose: Studies have found that long noncoding RNA HEIH (lncRNA-HEIH) is upregulated and facilitates hepatocellular carcinoma tumor growth. However, its clinical significances, roles and action mechanism in colorectal cancer (CRC) remains unidentified. Materials and Methods: lncRNA-HEIH expression in CRC tissues and cell lines was measured by quantitative real-time polymerase chain reaction. Cell Counting Kit-8, ethynyl deoxyuridine incorporation assay, terminal deoxynucleotidyl transferase dUTP nick end labeling staining, and nude mice xenografts assays were performed to investigate the roles of lncRNA-HEIH...
October 30, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
Jia Luo, Lu-Ning Xu, Sheng-Jun Zhang, Yi-Gui Jiang, De-Xiang Zhuo, Lian-Hui Wu, Xiang Jiang, Yue Huang
OBJECTIVES: Using microarray analysis, we previously showed that many lncRNAs are differentially expressed in colorectal cancer (CRC) tissues compared with normal tissues, suggesting that lncRNAs may be involved the initiation and progression of CRC. In this study, we investigated the expression and function of lncRNA-RP11-317J10.2 in human CRC tissues and cell lines. METHODS: LncRNA-RP11-317J10.2 expression level was analyzed in 52 colon cancer and cell lines. We used shRNA to knock-down the expression of RP11-317J10...
October 26, 2017: Scandinavian Journal of Gastroenterology
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