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colorectal cancer AND lncRNA

Heng Fan, Jian-Hua Zhu, Xue-Qing Yao
BACKGROUND: Long non-coding RNA (lncRNA) plays a very important role in the occurrence and development of various tumors, and is a potential biomarker for cancer diagnosis and prognosis. The purpose of this study was to investigate the relationship between the expression of lncRNA plasmacytoma variant translocation 1 (PVT1) and the prognostic significance in patients with colorectal cancer. METHODS: The expression of PVT1 was measured by real-time quantitative reverse transcription-polymerase chain reaction (qRT-PCR) in cancerous and adjacent tissues of 210 colorectal cancer patients...
May 1, 2018: International Journal of Biological Markers
Jianming Tang, Guansheng Zhong, Jianhui Wu, Haiyan Chen, Yongshi Jia
Increasing evidences have shown that long noncoding RNAs (lncRNAs) play critical regulatory roles in cancer biology. However, the contributions of lncRNAs to colorectal cancer remain largely unknown. Here, we identify a lncRNA AFAP1-AS1 that facilitates colorectal cancer, where it is upregulated. AFAP1-AS1 expression was associated with colorectal cancer patient survival. AFAP1-AS1 knockdown inhibited cell proliferation, cell cycle, and tumorigenesis in an subcutaneous mouse xenograft model system. Further data demonstrated that AFAP1-AS1 was associated with enhancer of zeste homolog 2 (EZH2) and that this association was required for the repression of EZH2 target genes...
2018: American Journal of Cancer Research
Shao-Yan Lv, Ti-Dong Shan, Xin-Ting Pan, Zi-Bin Tian, Xi-Shuang Liu, Fu-Guo Liu, Xue-Guo Sun, Hui-Guang Xue, Xin-Hua Li, Yue Han, Li-Juan Sun, Li Chen, Ling-Yun Zhang
Long noncoding RNAs (lncRNAs) are important regulators of the biological functions and underlying molecular mechanisms of colorectal cancer (CRC). However, the role of the lncRNA ZEB1-AS1 in CRC is not thoroughly understood. In this study, we found that ZEB1-AS1 was markedly upregulated in CRC. ZEB1-AS1 knockdown significantly suppressed CRC cell proliferation and induced apoptosis, whereas enhanced expression of ZEB1-AS1 had the opposite effect. Bioinformatics analysis identified miR-181a-5p as a candidate target of ZEB1-AS1...
June 9, 2018: Cell Cycle
Fengjun Liu, Xinsheng Wang, Haiyan Liu, Yang Wang, Xiaoqian Liu, Xiaochen Hao, Hongguang Li
Colorectal cancer represents a great burden for patients worldwide. Long noncoding RNA BX357664 is an RNA that was identified by microarray technique in renal cell carcinoma. The function of BX357664 in solid tumors remains largely unknown. The present study aimed to investigate the expression profile and functional role of BX357664 in human colorectal cancer progression. The transcription levels of BX357664 were initially examined in vivo and in vitro . An overexpression plasmid was constructed in order to examine the effects of BX357664 overexpression on cell proliferation, apoptosis, migration and invasion...
June 2018: Oncology Letters
Kai Lin, Hong Jiang, Ling-Ling Zhang, Yi Jiang, Yu-Xian Yang, Guo-Dong Qiu, Yu-Qi She, Jie-Ting Zheng, Chen Chen, Ling Fang, Shu-Yao Zhang
BACKGROUND AND AIM: HOX transcript antisense intergenic RNA (HOTAIR) is a relatively well-understood RNA, which plays a central role in the pathogenesis of various tumors. The aim of the present study was to investigate the effect by which HOTAIR acts to influence the biological processes of colorectal cancer (CRC) through p21. METHODS: Reverse transcription quantitative polymerase chain reaction and Western blot methods were employed to provide verification regarding the changes in HOTAIR, PCNA, Ki67, p21, cyclin E, and CDK2 among the CRC tissues and cells...
May 28, 2018: Digestive Diseases and Sciences
Kuijie Liu, Hongliang Yao, Yu Wen, Hua Zhao, Nanjiang Zhou, Sanlin Lei, Li Xiong
Colorectal Cancer (CRC) is one of the most common digestive system malignant tumors. Recently, PDT has been used as a first-line treatment for colon cancer; however, limited curative effect was obtained due to resistance of CRC to PDT. During the past decades, accumulating CRC-related long non-coding RNAs (lncRNAs), microRNAs (miRNAs) and mRNAs have been reported to exert diverse functions through various biological processes; their dysregulation might trigger and/or promote the pathological changes. Herein, we performed microarrays analysis to identify dysregulated lncRNAs, miRNAs and mRNAs in PDT-treated HCT116 cells to figure out the lncRNA-miRNA interactions related to the resistance of CRC to PDT treatment, and the downstream mRNA target, as well as the molecular mechanism...
May 25, 2018: Biochimica et Biophysica Acta
Junfeng Sun, Jiyi Hu, Guojun Wang, Zhen Yang, Chunlin Zhao, Xiefu Zhang, Jiaxiang Wang
BACKGROUND: LncRNA TUG1 has been reported to be highly expressed in CRC samples and cells and promoted metastasis by affecting EMT, indicating a poor prognosis for colorectal cancer (CRC). In this study, we determined the underlying mechanism for tumor oncogenesis of lncRNA TUG1 in CRC metastasis. METHODS: The expressions of miR-600 and KIAA1199 in 76 CRC patients and CRC cells and CRC metastatic tissues were determined using qRT-PCR. Epithelial-mesenchymal transition (EMT)-related proteins were determined using western blot...
May 18, 2018: Journal of Experimental & Clinical Cancer Research: CR
Yi-Lin Wang, Jun Shao, Xiaohong Wu, Tong Li, Ming Xu, Debing Shi
Dysregulation of long non-coding RNA (lncRNA) plays important roles in cancer development and progression. In this work, we attempted to develop a lncRNA signature to improve prognosis prediction of colorectal cancer. A comprehensive analysis for the lncRNA expression and corresponding clinical information of 344 colorectal patients has been performed based on the data from The Cancer Genome Atlas (TCGA). We randomly divided TCGA data into a training set ( n = 172) and a testing set ( n = 172). A four-lncRNA signature has been established which was significantly associated with the overall survival of colorectal cancer patients...
April 24, 2018: Oncotarget
Yanmei Zou, Shuo Yao, Xiuqiong Chen, Dian Liu, Jianhua Wang, Xun Yuan, Jie Rao, Huihua Xiong, Shiying Yu, Xianglin Yuan, Feng Zhu, Guohong Hu, Yihua Wang, Hua Xiong
OBJECT: This study aimed to investigate the role of lncRNA OIP5-AS1 in regulating radioresistance of colorectal cancer (CRC) cells. METHODS: Microarray analysis was used to screen out lncRNAs differentially expressed in radio-resistant CRC cell lines. Expression levels of OIP5-AS1, miR-369-3p and DYRK1A in CRC cell lines were measured by qRT-PCR. Protein expression of DYRK1A was determined by western blot. The target relationships among OIP5-AS1, miR-369-3p and DYRK1A were validated by dual luciferase reporter assay...
April 14, 2018: European Journal of Cell Biology
M-H Zhang, Y Yang, Y Zhao, H-B Wei, Y-Q Ma, C-J Yang, X-J Zhang, Y-L Sun
OBJECTIVE: Recent studies have revealed that long noncoding RNA DQ786243 (DQ786243) plays an important role in the development of gastric cancer (GC) and colorectal cancer. However, the expression and function of DQ786243 in GC patients remain largely unknown. The purpose of our study was to investigate the clinical significance of DQ786243 expression in GC. PATIENTS AND METHODS: qRT-PCR was used to examine DQ786243 expression in 172 paired GC samples and matched adjacent normal tissues...
April 2018: European Review for Medical and Pharmacological Sciences
X-F Zhang, Y Zhang, Z Shen, G-G Yang, H-D Wang, L-F Li, D-C Liu, J-M Qiu
OBJECTIVE:   LncRNAs participate in the proliferation, apoptosis, and invasion of colorectal cancer. We aimed at investigating the uncovered effect of lncRNALUADT1 on colorectal cancer. PATIENTS AND METHODS: The relative expression level of lncRNALUADT1 in tumor specimen was tested by Real-time quantitative PCR. The association of lncRNALUADT1 with clinical pathological data was analyzed by univariate, multivariate Cox and Kaplan-Meier curve. RESULTS: LncRNALUADT1 expression was up-regulated in colorectal cancer, and correlated with tumor size, metastasis, and TNM staging...
April 2018: European Review for Medical and Pharmacological Sciences
Qiaowei Fan, Bingrong Liu
Purpose: This study was aimed to develop a lncRNA-associated competing endogenous RNA (ceRNA) network to provide further understanding of the ceRNA regulatory mechanism and pathogenesis in colorectal cancer (CRC). Patients and methods: Expression profiles of mRNAs, lncRNAs, and miRNAs, and clinical information for CRC patients were obtained from The Cancer Genome Atlas. The differentially expressed mRNAs, lncRNAs, and miRNAs (referred to as "DEmRNAs", "DElncRNAs", and "DEmiRNAs", respectively) were screened out between 539 CRC samples and 11 normal samples...
2018: OncoTargets and Therapy
Dayong Ding, Changfeng Li, Tiancheng Zhao, Dandan Li, Lei Yang, Bin Zhang
This investigation was aimed at working out the combined role of lncRNA H19, miR-29b and Wnt signaling in the development of colorectal cancer (CRC). In the aggregate, 185 CRC tissues and corresponding para-carcinoma tissues were gathered. The human CRC cell lines (i.e. HT29, HCT116, SW480 and SW620) and normal colorectal mucosa cell line (NCM460) were also purchased. Si-H19, si-NC, miR-29b-3p mimics, miR-29b-3p inhibitor, si-PGRN and negative control (NC) were, respectively, transfected into the CRC cells...
May 10, 2018: Molecules and Cells
Liqiang Gu, Jun Yu, Qing Wang, Bin Xu, Liechen Ji, Lin Yu, Xipeng Zhang, Hui Cai
The present study aimed to investigate potential prognostic long noncoding RNAs (lncRNAs) associated with colorectal cancer (CRC). An mRNA‑seq dataset obtained from The Cancer Genome Atlas was employed to identify the differentially expressed lncRNAs (DELs) between CRC patients with good and poor prognoses. Subsequently, univariate and multivariate Cox regression analyses were conducted to analyze the prognosis‑associated lncRNAs among all DELs. In addition, a risk scoring system was developed according to the expression levels of the prognostic lncRNAs, which was then applied to a training set and an independent testing set...
May 3, 2018: Molecular Medicine Reports
Xiang Li, Xinhan Zhao, Binhui Yang, Yuqing Li, Tao Liu, Linyuan Pang, Zhigang Fan, Wu Ma, Zhongqiu Liu, Zeng Li
Mounting evidence has indicated that long non‑coding RNAs (lncRNA) serve important roles in tumor development. Previous studies have demonstrated that the lncRNA HOXD cluster antisense RNA 1 (HOXD‑AS1) promotes tumor progression in numerous types of cancer; however, the role of HOXD‑AS1 in colorectal cancer (CRC) remains unclear. In the present study, the expression levels of HOXD‑AS1 were detected in CRC tissues and cell lines using quantitative polymerase chain reaction. In addition, the biological effects of HOXD‑AS1 on CRC were evaluated in vitro by cell counting kit‑8, colony formation and Transwell assays, and in vivo by tumorigenesis and metastasis assays...
May 9, 2018: International Journal of Oncology
Yanyan Zhu, Liang Qiao, Yun Zhou, Ning Ma, Chaojie Wang, Jianwei Zhou
Emerging evidence has indicated that long non-coding RNA plays an important role in the carcinogenesis at the transcriptional and post-translational levels. The regulation of carcinogenesis related effectors is potent in the determination of tumor initiation and progression. In current study, FOXD2-AS1 was found to interact with miR-185-5p to modulate proliferation, migration and invasion of colorectal cancer (CRC) cells. Interestingly, cell division control (CDC) 42 expression was significantly influenced by FOXD2-AS1 and miR-185-5p...
May 8, 2018: Cancer Science
Nehal Samir, Marwa Matboli, Hanaa El-Tayeb, Ahmed El-Tawdi, Mohmed K Hassan, Sherif El-Khamisy, Hesham A E El-Akkad, Mohamed G Ramadan, Tarek N Al-Belkini, Farid El-Asmar
The competing endogenous RNA networks play a pivotal role in cancer diagnosis and progression. Novel properstrategies for early detection of colorectal cancer (CRC) are strongly needed. We investigated a novel CRC-specific RNA-based integrated competing endogenous network composed of lethal3 malignant brain tumor like1 (L3MBTL1) gene, long non-coding intergenic RNA- (lncRNA RP11-909B2.1) and homo sapiens microRNA-595 (hsa-miRNA-595) using in silico data analysis. RT-qPCR-based validation of the network was achieved in serum of 70 patients with CRC, 40 patients with benign colorectal neoplasm, and 20 healthy controls...
May 8, 2018: Journal of Cellular Biochemistry
Zhonghua Ma, Peng Peng, Jing Zhou, Bingqing Hui, Hao Ji, Juan Wang, Keming Wang
BACKGROUND/AIMS: Colorectal cancer (CRC) is one of the most commonly diagnosed malignancies worldwide. Current evidence has revealed the key roles of long non-coding RNAs (IncRNAs) in multiple cancers, including CRC. In this study we identified the lncRNA SH3PXD2A-AS1 as a novel molecule associated with CRC progression by analyzing the publicly available data from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) datasets. METHODS: Quantitative real-time polymerase chain reaction (qRT-PCR) assays were performed to examine the expression levels of SH3PXD2A-AS1 in CRC tissue samples and CRC cell lines...
May 3, 2018: Cellular Physiology and Biochemistry
Jiaqiu Li, Ping Song, Tingting Jiang, Dongjun Dai, Hanying Wang, Jie Sun, Liyuan Zhu, Wenxia Xu, Lifeng Feng, Vivian Y Shin, Helen Morrison, Xian Wang, Hongchuan Jin
Heat shock factor 1 (HSF1) generally exhibits its properties under stress conditions. In tumors, HSF1 has a pleiotropic feature in regulating growth, survival, and aggressiveness of cancer cells. In this study, we found HSF1 was increased in colorectal cancer (CRC) and had a positive correlation with shorter disease-free survival (DFS). Knockdown of HSF1 in CRC cells attenuated their growth while inhibiting mTOR activation and glutamine metabolism. HSF1 inhibited the expression of microRNA137 (MIR137), which targeted GLS1 (glutaminase 1), thus stimulating GLS1 protein expression to promote glutaminolysis and mTOR activation...
April 14, 2018: Molecular Therapy: the Journal of the American Society of Gene Therapy
Khaing Zar Thin, Xuefang Liu, Xiaobo Feng, Sudheesh Raveendran, Jian Cheng Tu
OBJECTIVES: Long noncoding RNAs (lncRNA) are a type of noncoding RNA that comprise of longer than 200 nucleotides sequences. They can regulate chromosome structure, gene expression and play an essential role in the pathophysiology of human diseases, especially in tumorigenesis and progression. Nowadays, they are being targeted as potential biomarkers for various cancer types. And many research studies have proven that lncRNAs might bring a new era to cancer diagnosis and support treatment management...
April 24, 2018: Pathology, Research and Practice
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