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lncRNA pancreatic

Bo Huang, Chuan Liu, Qiong Wu, Jing Zhang, Qinghua Min, Tianle Sheng, Xiaozhong Wang, Yeqing Zou
Recently, long non-coding RNAs (lncRNAs) have been shown to have critical regulatory roles in tumourigenesis. Increasing evidence has suggested that lncRNA NEAT1 has been implicated in various types of human cancer. However, the potential biological roles and regulatory mechanisms of NEAT1 in pancreatic cancer (PC) remains unclear. Here, we found that the expression level of NEAT1 was higher in PC tissues compared to the corresponding non-tumor tissues. Besides, our findings indicate that high NEAT1 expression level is closely correlated with tumor progression and poor survival in PC patients...
November 23, 2016: Biochemical and Biophysical Research Communications
Le Li, Guang-Quan Zhang, Hua Chen, Zhong-Jie Zhao, Hong-Ze Chen, Huan Liu, Gang Wang, Yue-Hui Jia, Shang-Ha Pan, Rui Kong, Yong-Wei Wang, Bei Sun
Long intergenic non-protein coding RNA, p53 induced transcript (Linc-pint) is a long noncoding RNA (lncRNA) that regulates tumor cell viability and proliferation. We used qRT-PCR and RNA FISH analysis to evaluate Linc-pint levels in the plasma and tumor tissues of pancreatic cancer (PCa) patients. Our data demonstrate that Linc-pint expression is lower in plasma samples from PCa patients than from healthy individuals, and indicate that plasma Linc-pint levels are more sensitive than CA19-9 for detecting PCa...
September 30, 2016: Oncotarget
Chuntao Sun, Lihua Xue, Ziyang Zhu, Fan Zhang, Ruixue Yang, Xuewen Yuan, Zhanjun Jia, Qianqi Liu
Type 1 diabetes mellitus (T1DM) is an organ-specific autoimmune disease characterized by chronic and progressive apoptotic destruction of pancreatic beta cells. During the initial phases of T1DM, cytokines and other inflammatory mediators released by immune cells progressively infiltrate islet cells, induce alterations in gene expression, provoke functional impairment, and ultimately lead to apoptosis. Long noncoding RNAs (lncRNAs) are a new important class of pervasive genes that have a variety of biological functions and play key roles in many diseases...
2016: Mediators of Inflammation
Chao Liu, Jiamin Wang, Xiaoyuan Yuan, Wenli Qian, Bosen Zhang, Minmin Shi, Junjie Xie, Baiyong Shen, Hong Xu, Zhaoyuan Hou, Hao Chen
Increasing evidence points to an important functional or regulatory role of long noncoding RNA in cellular processes as well as cancer diseases resulted from the aberrant lncRNA expression. LncRNA could participate in the cancer progression and develop a significant role through the interaction with proteins. In the present study, we report a lncRNA termed uc.345 that is up-regulated in tumor tissues, compared to the corresponding noncancerous tissues. We found that a higher uc.345 expression level was more frequently observed in tissues with increased depth of invasion and advanced TNM tumor node metastasis T stage...
September 26, 2016: Oncotarget
T Han, H Hu, M Zhuo, L Wang, J-J Cui, F Jiao, L-W Wang
Pancreatic cancer remains a worldwide issue and burden that is hard to resolve given its low resection rate and chemo-resistance. Early diagnosis and early treatment are critical for conquering pancreatic cancer. Therefore, new biomarkers for diagnosis and prognosis are urgently needed. Previously, researchers mainly focused on protein-coding genetic and epigenetic changes in many types of cancers, and regarded the non-coding part as waste. Recently, however, long non-coding RNA (lncRNA) has emerged as a major participant in carcinogenesis, as it regulates cell proliferation, migration, invasion, metastasis, chemo-resistance, etc...
September 26, 2016: Current Molecular Medicine
Yifan Lian, Juan Wang, Jing Feng, Jie Ding, Zhonghua Ma, Juan Li, Peng Peng, Wei De, Keming Wang
Long non-coding RNA (lncRNA) modulates gene expression, while lncRNA dysregulation is associated with human cancer. Furthermore, while recent studies have shown that lncRNA IRAIN plays an important role in other malignancies, the role of IRAIN in pancreatic cancer (PC) progression remains unclear. In this study, we found that upregulation of lncRNA IRAIN was significantly correlated with tumor size, TNM stage, and lymph node metastasis in a cohort of 37 PC patients. In vitro experiments showed that knockdown of IRAIN by small interfering RNA (siRNA) significantly induced cell apoptosis and inhibited cell proliferation in both BxPC-3 and PANC-1 cells...
September 19, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
Xue-Liang Fu, De-Jun Liu, Ting-Ting Yan, Jian-Yu Yang, Min-Wei Yang, Jiao Li, Yan-Miao Huo, Wei Liu, Jun-Feng Zhang, Jie Hong, Rong Hua, Hao-Yan Chen, Yong-Wei Sun
Pancreatic ductal adenocarcinoma (PDAC) remains one of the most aggressive and lethal malignancies. Long non-coding RNAs (lncRNAs) are a novel class of non-protein-coding transcripts that have been implicated in cancer biogenesis and prognosis. By repurposing microarray probes, we herein analysed the lncRNA expression profiles in two public PDAC microarray datasets and identified 34 dysregulated lncRNAs in PDAC. In addition, the expression of 6 selected lncRNAs was confirmed in Ren Ji cohort and pancreatic cell lines, and their association with 80 PDAC patients' clinicopathological features and prognosis was investigated...
2016: Scientific Reports
Hong-Lei Luo, Ming-de Huang, Jia-Ni Guo, Rui-Hua Fan, Xiao-Tian Xia, Jing-Dong He, Xiao-Fei Chen
Recent findings indicate that long noncoding RNAs (lncRNAs) were dysregulated in many kinds of tumors including esophageal squamous cell carcinoma (ESCC). LncRNA AFAP1-AS1 was found to be upregulated in hepatocellular carcinoma (HCC), lung cancer, colorectal cancer, esophageal adenocarcinoma (EAC), pancreatic ductal adenocarcinoma, and nasopharyngeal carcinoma, while its clinical value and potential function in ESCC are still unknown. Expression of AFAP1-AS1 was measured in 65 ESCC tissues and corresponding noncancerous tissues by quantitative real-time polymerase chain reaction, which revealed that AFAP1-AS1 expression was markedly elevated in ESCC tissues and significantly associated with advanced TNM stage (P = 0...
August 30, 2016: Cancer Medicine
Ping Chen, Daiwei Wan, Dingcheng Zheng, Qi Zheng, Feng Wu, Qiaoming Zhi
The contribution of long non-coding RNAs (lncRNAs) to tumorigenesis and metastasis of pancreatic cancer (PC) remains largely unknown. Urothelial cancer-associated 1 (UCA1), which is an originally identified lncRNA in bladder cancer, has be proved to play a pivotal role in bladder cancer progression and embryonic development. In this study, we detected the mRNA expression of UCA1 in 128 PC patients by qRT-PCR, and found that UCA1 expression was significantly, up-regulated in tumor tissues than that in matched adjacent non-tumor tissues (p<0...
August 22, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Yifan Lian, Zeling Cai, Huangbo Gong, Songling Xue, Dongdong Wu, Keming Wang
Long non-coding RNAs (lncRNAs), which represent a novel group of non-protein-coding RNAs and are commonly defined as RNA molecules larger than 200 nucleotides in length, have been shown to get involved in diverse biological processes, such as cell growth, apoptosis, migration and invasion. In addition, aberrant expression of lncRNAs has been discovered in human tumors, where they function as either oncogenes or tumor suppressor genes. Recently tumorigenic effects of one specific lncRNA, termed as 'HOXA transcript at the distal tip' (HOTTIP), on the initiation and progression of human cancer has been widely reported...
October 18, 2016: Molecular BioSystems
Meng Zhou, Zhiyong Diao, Xiaolong Yue, Yang Chen, Hengqiang Zhao, Liang Cheng, Jie Sun
It is increasing evidence that ceRNA activity of long non-coding RNAs (lncRNAs) played critical roles in both normal physiology and tumorigenesis. However, functional roles and regulatory mechanisms of lncRNAs as ceRNAs in pancreatic ductal adenocarcinoma (PDAC), and their potential implications for early diagnosis remain unclear. In this study, we performed a genome-wide analysis to investigate potential lncRNA-mediated ceRNA interplay based on "ceRNA hypothesis". A dysregulated lncRNA-associated ceRNA network (DLCN) was constructed by utilizing sample-matched miRNA, lncRNA and mRNA expression profiles in PDAC and normal samples in combination with miRNA regulatory network...
July 28, 2016: Oncotarget
Wei Peng, Airen Jiang
Pancreatic cancer (PC) is the fourth most common cancer worldwide and has the least patient survival rate of any cancer. Emerging studies have demonstrated that long noncoding RNAs (lncRNAs) were present in cancer patients and have shown great potential as powerful markers and therapeutic targets. However, little is known about the role of lncRNAs in PC. The present study aimed to investigate the expression pattern, clinical significance and biological function of lncRNA CCDC26 (CCDC26) in PC. With quantitative real-time PCR, we analyzed CCDC26 expression levels in 40 PC patients...
July 28, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Weiyi Huang, Ning Li, Jiong Hu, Lei Wang
Worldwide, human pancreatic cancer is a rare malignancy with a poor prognosis. Long non-coding RNAs (lncRNAs) are known to have a crucial role in cancer occurrence and progression; however, the role of pseudogene-expressed lncRNAs, a major type of lncRNA, have not been thoroughly analyzed in cancer. Therefore, the present study focused on zinc finger protein 91 pseudogene (ZFP91-P). ZFP91-P expression was initially detected in two pancreatic cancer cell lines by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and the highest expression of ZFP91-P was found in the BXPC-3-H cell line...
August 2016: Oncology Letters
X-L Sun, G-H Cao, Y Cao, X Jiang, X-K Li, X-H Ye, D-H Wang, S-X Yan
OBJECTIVE: The aim of this study was to investigate the expression of LncRNA HMlincRNA717 in human pancreatic cancer and its correlation with clinicopathological features PATIENTS AND METHODS: Using reverse transcription quantitative polymerase chain reaction, HMlincRNA717 expression was detected in primary pancreatic cancer tissues. The correlation of HMlincRNA717 with clinicopathological features and prognosis were also analyzed. Survival analysis was performed using the Kaplan-Meier method and Cox's proportional hazards model...
June 2016: European Review for Medical and Pharmacological Sciences
Wei Peng, Jianzhong Wu, Jifeng Feng
Diffuse large B-cell lymphoma (DLBCL) is one of the leading causes of cancer-related mortality, and responds badly to existing treatment. Thus, it is of urgent need to identify novel prognostic markers and therapeutic targets of DLBCL. Emerging studies have implicated that long noncoding RNAs (lncRNAs) are differentially expressed in various tumors and play an important role in the development of cancer. Previously, our group has reported that the novel lncRNA HULC has important biological function and clinical potential in human pancreatic cancer...
April 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Zijun Xie, Xiaoliang Chen, Jianzhong Li, Yunwei Guo, Haijiao Li, Xuemei Pan, Jie Jiang, Huiling Liu, Bin Wu
Sensitive and non-invasive biomarkers for pancreatic cancer (PC) are lacking. We aimed to identify salivary long non-coding RNAs (lncRNAs) as biomarkers in diagnosis of resectable PC. Five well-documented lncRNAs: H19, HOTAIR, HOTTIP, MALAT1, PVT1, which are most closely associated with pancreatic cancer from previous studies were selected as putative lncRNA biomarkers. Their expression in pancreatic tissues and saliva of cancer patients and healthy controls was measured by quantification polymerase chain reaction (qPCR)...
May 3, 2016: Oncotarget
Luis Arnes, Ildem Akerman, Dina A Balderes, Jorge Ferrer, Lori Sussel
Pancreatic β cells are responsible for maintaining glucose homeostasis; their absence or malfunction results in diabetes mellitus. Although there is evidence that long noncoding RNAs (lncRNAs) play important roles in development and disease, none have been investigated in vivo in the context of pancreas development. In this study, we demonstrate that βlinc1 (β-cell long intergenic noncoding RNA 1), a conserved lncRNA, is necessary for the specification and function of insulin-producing β cells through the coordinated regulation of a number of islet-specific transcription factors located in the genomic vicinity of βlinc1...
March 1, 2016: Genes & Development
Duanmin Hu, Cunjin Su, Min Jiang, Yating Shen, Aiming Shi, Fenglun Zhao, Ruidong Chen, Zhu Shen, Junjie Bao, Wen Tang
There is still no suitable drug for pancreatic cancer treatment, which is one of the most aggressive human tumors. Maternally expressed gene 3 (MEG3), a LncRNA, has been suggested as a tumor suppressor in a range of human tumors. Studies found fenofibrate exerted anti-tumor roles in various human cancer cell lines. However, its role in pancreatic cancer remains unknown. The present study aimed to explore the impacts of fenofibrate on pancreatic cancer cell lines, and to investigate MEG3 role in its anti-tumor mechanisms...
March 4, 2016: Biochemical and Biophysical Research Communications
Shangyou Zheng, Huimou Chen, Yingxue Wang, Wenchao Gao, Zhiqiang Fu, Quanbo Zhou, Yanhui Jiang, Qing Lin, Langping Tan, Huilin Ye, Xiaohui Zhao, Yuming Luo, Guolin Li, Liangtao Ye, Yimin Liu, Wenzhu Li, Zhihua Li, Rufu Chen
Long non-coding RNAs (lncRNAs) are important regulators in pathological processes, yet their potential roles in pancreatic ductal adenocarcinoma (PDAC) are poorly understood. Here, we found that a novel lncRNA, LOC389641, was upregulated in PDAC tissues and cell lines. The expression of LOC389641 was significantly correlated with staging, lymph node metastasis and overall survival. Knockdown of LOC389641 impaired cell proliferation and invasion and induced cell apoptosis in vitro, whereas overexpression of LOC389641 had the opposite effect...
February 28, 2016: Cancer Letters
Yu Zhou, Bo Gong, Zhi-Lin Jiang, Shan Zhong, Xing-Chao Liu, Ke Dong, He-Shui Wu, Hong-Ji Yang, Shi-Kai Zhu
Long non-coding RNA (lncRNA) is a variety of the human transcriptome that does not code for proteins and plays an important role in the development and progression of multiple solid malignant tumors. However, the roles of lncRNAs in the development of pancreatic ductal adenocarcinoma (PDAC) remain unknown. In this study, we investigated the expression patterns of lncRNAs in three PDAC tumor samples (T) relative to those of matched adjacent non-tumor tissues (N) via a microarray with 30,586 lncRNA probes and 26,109 mRNA probes...
February 2016: International Journal of Oncology
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