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https://www.readbyqxmd.com/read/29772434/the-interaction-of-long-non-coding-rna-miat-and-mir-133-play-a-role-in-the-proliferation-and-metastasis-of-pancreatic-carcinoma
#1
Ting-Fu Li, Jian Liu, Shi-Jie Fu
Pancreatic cancer (PC) is one of the most aggressive malignancies in humans. Despite advances in early detection and treatment of PC, the prognosis is still limited. LncRNA myocardial infarction-associated transcript (MIAT) is found abnormally expressed in a variety of cancers. However, the role of MIAT in PC is still unknown. This study aimed to explore whether MIAT was related to the progression of PC and the underlying mechanism. Bioinformatics analysis and luciferase reporter assay validated that miR-133 may target MIAT 3'-UTR...
May 14, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29753015/lncrna-zeb2-as1-promotes-pancreatic-cancer-cell-growth-and-invasion-through-regulating-the-mir-204-hmgb1-axis
#2
Hai Gao, Nana Gong, Zebin Ma, Xiaobo Miao, Jinchun Chen, Yan Cao, Gong Zhang
Recently, lncRNA ZEB2-AS1 was identified as a lncRNA that promoted cancer progression. However, the biological function and the underlying mechanism of ZEB2-AS1 in pancreatic cancer had not been reported. In the current study, we revealed that the expression level of ZEB2-AS1 was elevated in pancreatic cancer cell lines and tissues. ZEB2-AS1 inhibition decreased cell growth and invasion in pancreatic cancer. Mechanismly, ZEB2-AS1 exerted as a ceRNA and negatively regulated miR-204 expression. In addition, HMGB1 was identified as a down-stream target of miR-204...
May 9, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29748571/tgf-%C3%AE-induces-mir-100-and-mir-125b-but-blocks-let-7a-through-lin28b-controlling-pdac-progression
#3
Silvia Ottaviani, Justin Stebbing, Adam E Frampton, Sladjana Zagorac, Jonathan Krell, Alexander de Giorgio, Sara M Trabulo, Van T M Nguyen, Luca Magnani, Hugang Feng, Elisa Giovannetti, Niccola Funel, Thomas M Gress, Long R Jiao, Ylenia Lombardo, Nicholas R Lemoine, Christopher Heeschen, Leandro Castellano
TGF-β/Activin induces epithelial-to-mesenchymal transition and stemness in pancreatic ductal adenocarcinoma (PDAC). However, the microRNAs (miRNAs) regulated during this response have remained yet undetermined. Here, we show that TGF-β transcriptionally induces MIR100HG lncRNA, containing miR-100, miR-125b and let-7a in its intron, via SMAD2/3. Interestingly, we find that although the pro-tumourigenic miR-100 and miR-125b accordingly increase, the amount of anti-tumourigenic let-7a is unchanged, as TGF-β also induces LIN28B inhibiting its maturation...
May 10, 2018: Nature Communications
https://www.readbyqxmd.com/read/29692736/the-function-and-mechanism-of-long-non-coding-rna-atb-in-cancers
#4
REVIEW
Huizhong Xiao, Fuyou Zhang, Yifan Zou, Jianfa Li, Yuchen Liu, Weiren Huang
Long non-coding RNAs (lncRNAs) are a class of transcriptional RNA molecules with a length of greater than 200 nucleotides that function as regulatory factors in many human diseases. Studies have shown that lncRNAs are involved in multiple cellular processes, including proliferation, apoptosis, migration, and invasion. In this report, a long non-coding RNA-ATB that is overexpressed in various tumor tissues and cell lines was investigated. Recent evidence suggests that ATB is dysfunctional in a variety of cancers, including hepatocellular carcinoma, gastric cancer (GC), colorectal cancer (CRC), breast cancer (BC), prostate cancer, renal cell carcinoma, non-small cell lung cancer (NSCLC), pancreatic cancer, osteosarcoma, and glioma...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29669788/h19-induces-abdominal-aortic-aneurysm-development-and-progression
#5
Daniel Y Li, Albert Busch, Hong Jin, Ekaterina Chernogubova, Jaroslav Pelisek, Joakim Karlsson, Bengt Sennblad, Shengliang Liu, Shen Lao, Patrick Hofmann, Alexandra Bäcklund, Suzanne M Eken, Joy Roy, Per Eriksson, Brian Dacken, Deepak Ramanujam, Anne Dueck, Stefan Engelhardt, Reinier A Boon, Hans-Henning Eckstein, Joshua M Spin, Philip S Tsao, Lars Maegdefessel
Background -Long noncoding RNAs (lncRNAs) have emerged as critical molecular regulators in various biological processes and diseases. Here we sought to identify and functionally characterize lncRNAs as potential mediators in abdominal aortic aneurysm (AAA) development. Methods -We profiled RNA transcript expression in two murine AAA models, Angiotensin II (ANGII) infusion in ApoE-/- mice ( n =8) and porcine pancreatic elastase (PPE) instillation in C57BL/6 wildtype mice ( n =12). The lncRNA H19 was identified as one of the most highly up-regulated transcripts in both mouse aneurysm models compared to sham-operated controls...
April 18, 2018: Circulation
https://www.readbyqxmd.com/read/29667486/lncrna-adpgk-as1-promotes-pancreatic-cancer-progression-through-activating-zeb1-mediated-epithelial-mesenchymal-transition
#6
Suzhen Song, Weihua Yu, Sen Lin, Mingbao Zhang, Teng Wang, Shuang Guo, Hongbo Wang
OBJECTIVE: This study was conducted to investigate the effects of ADP dependent glucokinase antisense RNA 1 (ADPGK-AS1)/ miR-205-5p/ zinc finger E-box binding homeobox 1 (ZEB1) on PC cells. METHODS: Differentially expressed lncRNAs and miRNAs in pancreatic cancer (PC) were identified by microarray analysis. In silico ceRNA analysis was conducted to find out the interactions among lncRNAs, miRNAs and mRNAs. Quantitative real-time PCR (qRT-PCR) was utilized to examine the expression of miR-205-5p and lncRNA ADPGK-AS1 in PC and non-cancerous cells...
April 18, 2018: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29657295/expression-profiling-identifies-the-noncoding-processed-transcript-of-hnrnpu-with-proliferative-properties-in-pancreatic-ductal-adenocarcinoma
#7
Dhruvitkumar S Sutaria, Jinmai Jiang, Ana Clara P Azevedo-Pouly, Eun Joo Lee, Megan R Lerner, Daniel J Brackett, Jo Vandesompele, Pieter Mestdagh, Thomas D Schmittgen
A gene array was used to profile the expression of 22,875 long non-coding RNAs (lncRNAs) and a large number of protein coding genes in 47 specimens of pancreatic ductal adenocarcinoma (PDAC), adjacent benign pancreas and the pancreas from patients without pancreatic disease. Of the lncRNAs profiled, the expression of 126 were significantly increased and 260 were decreased in the tumors ( p < 0.05, 2-fold). The expression of one lncRNA in particular, heterogeneous nuclear ribonucleoprotein U (HNRNPU) processed transcript (also known as ncRNA00201) was among the most significantly deregulated (increased four-fold) in the tumors compared to normal/adjacent benign tissues...
August 25, 2017: Non-Coding RNA
https://www.readbyqxmd.com/read/29643475/tumor-derived-exosomal-lnc-sox2ot-promotes-emt-and-stemness-by-acting-as-a-cerna-in-pancreatic-ductal-adenocarcinoma
#8
Zhonghu Li, Peng Jiang, Jie Li, Minjie Peng, Xin Zhao, Xi Zhang, Kai Chen, Yujun Zhang, Hui Liu, Lang Gan, Huaqiang Bi, Ping Zhen, Jin Zhu, Xiaowu Li
Long noncoding RNAs (lncRNAs) or exosomes have recently been shown to play vital regulatory or communication roles in cancer biology. However, the roles and mechanisms of exosomal lncRNAs in tumor invasion or metastasis of pancreatic ductal adenocarcinoma (PDAC) remain unknown. In this study, we aimed to investigate the detailed roles and mechanisms of tumor-generated exosomes in progression and metastasis of PDAC in vitro and in vivo. We identified a lncRNA-Sox2ot from exosomes of highly invasive PDAC cells, and analyzed the expression of Sox2ot in the plasma samples and found that the plasma exosomal Sox2ot expression was high and correlated with TNM stage and overall survival rate of PDAC patients...
April 12, 2018: Oncogene
https://www.readbyqxmd.com/read/29590649/circulating-lncrnas-analysis-in-patients-with-type-2-diabetes-reveals-novel-genes-influencing-glucose-metabolism-and-islet-%C3%AE-cell-function
#9
Yuting Ruan, Nie Lin, Qiang Ma, Rongping Chen, Zhen Zhang, Weiheng Wen, Hong Chen, Jia Sun
BACKGROUND/AIMS: The islet is an important endocrine organ to secrete insulin to regulate the metabolism of glucose and maintain the stability of blood glucose. Long noncoding RNAs (lncRNAs) are involved in a variety of biological functions and play key roles in many diseases, including type 2 diabetes (T2D). The aim of this study was to determine whether lncRNA-p3134 is associated with glucose metabolism and insulin signaling in pancreatic β cells. METHODS: LncRNA microarray technology was used to identify the differentially expressed circulating lncRNAs in T2D patients...
2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29532883/lncrna-bc032020-suppresses-the-survival-of-human-pancreatic-ductal-adenocarcinoma-cells-by-targeting-znf451
#10
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
https://www.readbyqxmd.com/read/29529600/long-noncoding-rna-meg3-regulates-mafa-expression-in-mouse-beta-cells-by-inactivating-rad21-smc3-or-sin3%C3%AE
#11
Ning Wang, Yanan Zhu, Min Xie, Lintao Wang, Feiyan Jin, Yihui Li, Qingxin Yuan, Wei De
BACKGROUND/AIMS: The main pathogenic mechanism of diabetes is a decrease in the number of islet beta cells or a decline in their function. Recent studies have shown that pancreatic long noncoding RNAs (lncRNAs) have a high degree of tissue specificity and may be involved in the maintenance of islet cells function and the development of diabetes. The aim of this study was to investigate the molecular regulatory mechanism of mouse maternal expressed gene 3 (Meg3) in insulin biosynthesis in pancreatic islets...
2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29526843/lncrna-ab209630-inhibits-gemcitabine-resistance-cell-proliferation-by-regulating-pi3k-akt-signaling-in-pancreatic-ductal-adenocarcinoma
#12
Libin Wang, Feng Wang, Li Na, Jingjing Yu, Liya Huang, Zhi-Qiang Meng, Zhen Chen, Hao Chen, Liu-Lu Ming, Yong-Qiang Hua
BACKGROUND: Recent study revealed that abnormal long noncoding RNAs (lncRNAs) expression are association with chemotherapy resistance of pancreatic ductal adenocarcinoma (PDAC). OBJECTIVE: The present study was aimed to investigate the effects of lncRNA AB209630 expression for gemcitabine resistance in PDAC cells. METHODS: In the study, increased expression of lncRNA AB209630 could suppress cell proliferation and cell colony formation ability in gemcitabine resistance cells of PDAC...
2018: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29510195/lncrna-uca1-promotes-migration-and-invasion-in-pancreatic-cancer-cells-via-the-hippo-pathway
#13
Meiting Zhang, Yi Zhao, Youli Zhang, Dawei Wang, Shuming Gu, Wen Feng, Wanxin Peng, Aihua Gong, Min Xu
Although overexpression of the long non-coding RNA (lncRNA) UCA1 has been implicated in several human cancers, its biological function in pancreatic cancer remains to be clarified. In this study, we reported that UCA1 expression was significantly increased in pancreatic cancer tissues and correlated with clinicopathological features, tumor stage, and poorer patient outcome. We further showed that UCA1 promoted cell migration and invasion of pancreatic cancer cells. Importantly, we found that UCA1 overexpression inhibited YAP phosphorylation, and increased YAP expression...
May 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29500870/lncrna-uca1-impacts-cell-proliferation-invasion-and-migration-of-pancreatic-cancer-through-regulating-mir-96-foxo3
#14
Yongping Zhou, Yigang Chen, Wenzhou Ding, Zhiyuan Hua, Liying Wang, Ye Zhu, Haixin Qian, Tu Dai
This study was expected to reveal the regulatory effects of lncRNA UCA1 on pancreatic cancer cell progression through targeting miR-96/FOXO3. Microarray analysis was carried out on 36 cases of pancreatic cancer tissues and 16 cases of adjacent tissues among them. Expression levels of lncRNA UCA1, miR-96, and FOXO3 in pancreatic cancer tissues and cell lines were determined by qRT-PCR. Expression levels of FOXO3 protein were determined by western blot. Cell viability, cell cycle and apoptosis, cell invasion and migration were detected by CCK-8, flow cytometry, and transwell assay, respectively...
April 2018: IUBMB Life
https://www.readbyqxmd.com/read/29471886/lncrna-norad-contributes-to-colorectal-cancer-progression-by-inhibition-of-mir-202-5p
#15
Jie Zhang, Xiao-Yan Li, Ping Hu, Yuan-Sheng Ding
Previous study indicates that long noncoding RNA NORAD could serve as a competing endogenous RNA to pancreatic cancer metastasis. However, its role in colorectal cancer requires to be investigated. In the present study, we found that the expression of NORAD was significantly upregulated in colorectal cancer (CRC) tissues. Furthermore, the expression of NORAD was positively related with CRC metastasis and patients' poor prognosis. Knockdown of NORAD markedly inhibited CRC cell proliferation, migration and invasion but induced cell apoptosis in vitro...
February 22, 2018: Oncology Research
https://www.readbyqxmd.com/read/29393501/long-non-coding-rna-xist-exerts-oncogenic-functions-in-pancreatic-cancer-via-mir-34a-5p
#16
Zhixia Sun, Baogang Zhang, Tingting Cui
Long non-coding RNAs (lncRNAs) have been implicated in the occurrence and progression of multiple cancers. In the present study, we investigated the role of lncRNA X inactive-specific transcript (XIST) in the development and progression of pancreatic cancer (PC). Firstly, we found that lncRNA XIST was markedly upregulated in PC tissues and PC cell lines, respectively. Overexpression of XIST significantly promoted the proliferation, migration and invasion, and suppressed cell apoptosis of BxPC-3 cells; knockdown of XIST significantly inhibited the proliferation, migration and invasion, and accelerated cell apoptosis of PANC-1 cells...
April 2018: Oncology Reports
https://www.readbyqxmd.com/read/29389953/role-of-metastasis-associated-lung-adenocarcinoma-transcript-1-malat-1-in-pancreatic-cancer
#17
Yating Cheng, Parisa Imanirad, Indira Jutooru, Erik Hedrick, Un-Ho Jin, Aline Rodrigues Hoffman, Jeann Leal de Araujo, Benjamin Morpurgo, Andrei Golovko, Stephen Safe
Metastasis-associated lung adenocarcinoma transcript-1 (MALAT-1) is a long non-coding RNA (lncRNA) that is a negative prognostic factor for patients with pancreatic cancer and several other tumors. In this study, we show that knockdown of MALAT-1 in Panc1 and other pancreatic cancer cell lines decreases cell proliferation, survival and migration. We previously observed similar results for the lncRNAs HOTTIP and HOTAIR in Panc1 cells; however, RNAseq comparison of genes regulated by MALAT-1 shows minimal overlap with HOTTIP/HOTAIR-regulated genes...
2018: PloS One
https://www.readbyqxmd.com/read/29386037/long-non-coding-rna-xloc_000647-suppresses-progression-of-pancreatic-cancer-and-decreases-epithelial-mesenchymal-transition-induced-cell-invasion-by-down-regulating-nlrp3
#18
Hao Hu, Yandong Wang, Xiangya Ding, Yuan He, Zipeng Lu, Pengfei Wu, Lei Tian, Hao Yuan, Dongfang Liu, Guodong Shi, Tianfang Xia, Jie Yin, Baobao Cai, Yi Miao, Kuirong Jiang
BACKGROUND: Long non-coding RNAs (lncRNAs) play an important role in the development and progression of various tumors, including pancreatic cancer (PC). Recent studies have shown that lncRNAs can 'act in cis' to regulate the expression of its neighboring genes. Previously, we used lncRNAs microarray to identify a novel lncRNA termed XLOC_000647 that was down-regulated in PC tissues. However, the expression and function of XLOC_000647 in PC remain unclear. METHODS: The expression of XLOC_000647 and NLRP3 in PC specimens and cell lines were detected by quantitative real-time PCR...
January 31, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29371940/the-lncrna-xist-interacts-with-mir-140-mir-124-iaspp-axis-to-promote-pancreatic-carcinoma-growth
#19
Shuai Liang, Xuejun Gong, Gewen Zhang, Gengwen Huang, Yebin Lu, Yixiong Li
Long non-coding RNA (lncRNA) X-inactive specific transcript (XIST) is involved in the development and progression of many tumors. In this study, XIST was specifically upregulated in pancreatic carcinoma tissues and cell lines; a higher XIST expression was correlated to poorer clinicopathologic features. After XIST knockdown, the proliferation of PC cell lines was suppressed and cell cycle stagnated in G1 phase; XIST knockdown also reduced the protein levels of inhibitor of apoptosis-stimulating protein of p53 (iASPP) and Cyclin-dependent kinase 1 (CDK1), increased the protein level of P21, a potent CDK inhibitor...
December 26, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348628/fezf1-as1-mir-107-znf312b-axis-facilitates-progression-and-warburg-effect-in-pancreatic-ductal-adenocarcinoma
#20
Huilin Ye, Quanbo Zhou, Shangyou Zheng, Guolin Li, Qing Lin, Liangtao Ye, Yingxue Wang, Lusheng Wei, Xiaohui Zhao, Wenzhu Li, Zhiqiang Fu, Yimin Liu, Zhihua Li, Rufu Chen
Long non-coding RNAs (lncRNAs) play a pivotal role in pathological processes. However, little information has been published regarding the underlying functions and mechanisms of lncRNAs in pancreatic ductal adenocarcinoma (PDAC). A novel lncRNA FEZF1-AS1 and its sense-cognate gene ZNF312B were found to be highly expressed in human PDAC tissues and cell lines, which is associated with disease progression and predicts clinical outcome in PDAC patients. Of note, bioinformatics analysis, luciferase assays and RNA immunoprecipitation assays indicated that FEZF1-AS1 may act as an endogenous sponge by competing for miR-107, thereby modulating the derepression of ZNF312B...
January 18, 2018: Cell Death & Disease
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