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Long non-coding RNA

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https://www.readbyqxmd.com/read/29331858/down-regulation-of-long-non-coding-rna-afap1-as1-inhibits-tumor-growth-promotes-apoptosis-and-decreases-metastasis-in-thyroid-cancer
#1
Wencheng Dai, Ye Tian, Bin Jiang, Weixian Chen
Long non-coding RNAs (lncRNAs), a new type of transcripts, play important roles in various cellular biological processes, involving tumorigenesis. Previous studies showed that lncRNA AFAP1-AS1 was aberrantly expressed in numerous cancers. Nevertheless, we know quite a little about the expression pattern and biological function of AFAP1-AS1 in thyroid cancer. In this study, we adopted the quantitative real-time PCR (qRT-PCR) to detect the expression of AFAP1-AS1 in thyroid cancer tissues. We discovered that expression of AFAP1-AS1 was increased in thyroid cancer tissues...
January 11, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29331478/comprehensive-analysis-of-lncrnas-and-mrnas-with-associated-co-expression-and-cerna-networks-in-c2c12-myoblasts-and-myotubes
#2
Rui Chen, Ting Jiang, Yanling She, Sidong Xie, Shanyao Zhou, Cheng Li, Jun Ou, Yulin Liu
Long non-coding RNAs (lncRNAs) are emerging as important regulators in the modulation of muscle development and muscle-related diseases. To explore potential regulators of muscle differentiation, we determined the expression profiles of lncRNAs and mRNAs in C2C12 mouse myoblast cell line using microarray analysis. Gene ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses were performed to explore their function. We also constructed co-expression, cis/trans-regulation, and competing endogenous RNA (ceRNA) networks with bioinformatics methods...
January 10, 2018: Gene
https://www.readbyqxmd.com/read/29331418/non-coding-rnas-in-cancer-stem-cells
#3
Huiwen Yan, Pengcheng Bu
Cancer stem cells (CSCs) have been shown to play a key role in tumor initiation, progression, metastasis, and therapy resistance. Despite their potential clinical importance, the mechanism of CSC regulation is not well understood. Recent evidence suggests that different types of non-coding RNAs (ncRNA), such as microRNA (miRNA) and long non-coding RNA (LncRNA), play a role in regulating CSC growth and replication by modulating transcription factors and downstream signaling pathways activated in CSCs. Here, we review the recent major findings about how they affect stem cell quality acquisition and maintenance in CSCs, as well as metastasis and therapy resistance...
January 10, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29330370/a-rna-sequencing-approach-for-the-identification-of-novel-long-non-coding-rna-biomarkers-in-colorectal-cancer
#4
Atsushi Yamada, Pingjian Yu, Wei Lin, Yoshinaga Okugawa, C Richard Boland, Ajay Goel
Long non-coding RNAs (lncRNAs) have been implicated in human pathology, however, their role in colorectal carcinogenesis have not been fully elucidated. In the current study, whole-transcriptome analysis was performed in 3 pairs of colorectal cancer (CRC) and matched normal mucosa (NM) by RNA sequencing (RNA-seq). Followed by confirmation using the Cancer Genome Atlas (TCGA) dataset, we identified 27 up-regulated and 22 down-regulated lncRNAs in CRC. Up-regulation of four lncRNAs, hereby named colorectal cancer associated lncRNA (CRCAL)-1 [AC021218...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330107/prostate-cancer-associated-lncrnas
#5
Yuichi Mitobe, Ken-Ichi Takayama, Kuniko Horie-Inoue, Satoshi Inoue
Long non-coding RNA (LncRNA) is defined as an RNA transcript that does not encode any protein, with a length longer than 200 nt. Based on the recent advances in high-throughput sequencing techniques, a large number of lncRNAs have been characterized as functional transcripts that play important roles in various biological processes as well as pathologic states. In a research field of prostate cancer, several key lncRNAs have been identified as new players that contribute to the pathophysiology of the disease, which is primarily regulated by androgen and its cognate receptor...
January 9, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29329034/long-non-coding-rna-ccat2-promotes-cholangiocarcinoma-cells-migration-and-invasion-by-induction-of-epithelial-to-mesenchymal-transition
#6
Yi Xu, Yue Yao, Wei Qin, Xiangyu Zhong, Xingming Jiang, Yunfu Cui
Cholangiocarcinoma (CCA) is one of the most aggressive malignancies in humans. Emerging evidence has indicated that abnormally expressed long non-coding RNAs (lncRNAs) could conduce to tumorigenesis and progression. Specifically, colon cancer-associated transcript 2 (CCAT2) has been reported to be overexpressed in several carcinomas. However, its clinical significance and functional roles in CCA is still unknown. qRT-PCR experiments were conducted to assess the CCAT2 expression in CCA tissue samples and cell lines...
January 9, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29328463/construction-and-investigation-of-lncrna-associated-cerna-regulatory-network-in-papillary-thyroid-cancer
#7
Yangjing Zhao, Hui Wang, Chengjiang Wu, Meina Yan, Haojie Wu, Jingzhe Wang, Xinxin Yang, Qixiang Shao
Increasing evidence has experimentally proved the competitive endogenous RNA (ceRNA) hypothesis that long non-coding RNA (lncRNA) can affect the expression of RNA targets by competitively combining microRNA (miRNA) via miRNA response elements. However, an extensive ceRNA network of thyroid carcinoma in a large cohort has not been evaluated. We analyzed the RNAseq and miRNAseq data of 348 cases of primary papillary thyroid cancer (PTC) patients with clinical information downloaded from The Cancer Genome Atlas (TCGA) project to search for potential biomarkers or therapeutic targets...
January 10, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29328404/chronic-oxymatrine-treatment-induces-resistance-and-epithelial%C3%A2-mesenchymal-transition-through-targeting-the-long-non-coding-rna-malat1-in-colorectal-cancer-cells
#8
Yibai Xiong, Jun Wang, Huirong Zhu, Lingshuang Liu, Yi Jiang
A major reason for colorectal cancer (CRC) chemoresistance is the enhanced migration and invasion of cancer cells, such as the cell acquisition of epithelial-mesenchymal transition (EMT). Long non-coding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) has been considered as a pro-oncogene in multiple cancers. However, the precise functional mechanism of lncRNA MALAT1 in chemoresistance and EMT is not well known. In the present study, we focused on the effect of oxymatrine on CRC cells and further investigated the role of MALAT1 in oxymatrine-induced resistance and EMT process...
January 10, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29328401/long-non-coding-rna-meg3-functions-as-a-tumour-suppressor-and-has-prognostic-predictive-value-in-human-pancreatic-cancer
#9
Ling Ma, Feng Wang, Chong Du, Zhengkui Zhang, Huahu Guo, Xuehai Xie, Hongqiao Gao, Yan Zhuang, Marko Kornmann, Hong Gao, Xiaodong Tian, Yinmo Yang
Long non-coding RNA (lncRNA) MEG3 has been demonstrated to be a tumour suppressor in many malignancies. However, the functional role of MEG3 in pancreatic cancer (PC) is unclear. In this study, the expression pattern of MEG3 was evaluated in 25 samples of microdissected PC tissues and 8 PC cell lines and was compared to the expression in adjacent non‑cancerous tissues and a human pancreatic normal epithelial cell line. Loss of MEG3 expression was observed in both the cancerous tissues and cancer cell lines...
January 2, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29327301/lncrna-gas8-as1-inhibits-cell-proliferation-through-atg5-mediated-autophagy-in-papillary-thyroid-cancer
#10
Yuan Qin, Wei Sun, Hao Zhang, Ping Zhang, Zhihong Wang, Wenwu Dong, Liang He, Ting Zhang, Liang Shao, Wenqian Zhang, Changhao Wu
PURPOSE: The long non-coding RNA GAS8 antisense RNA 1 (lncRNA GAS8-AS1) is a tumor suppressor in papillary thyroid cancer (PTC), but the mechanisms underlying how GAS8-AS1 regulates PTC biology remain unclear. Here, we evaluated the molecular function of GAS8-AS1 in regulating autophagy in PTC cell lines. METHODS: GAS8-AS1 was overexpressed and knocked down in PTC cell lines by transfecting with expression plasmids or short interfering RNAs (siRNAs). Cell proliferation was evaluated using the Cell Counting Kit-8 (CCK-8)...
January 11, 2018: Endocrine
https://www.readbyqxmd.com/read/29324704/dissection-of-myogenic-differentiation-signatures-in-chickens-by-rna-seq-analysis
#11
Tingting Li, Genxi Zhang, Pengfei Wu, Lian Duan, Guohui Li, Qiuhong Liu, Jinyu Wang
A series of elaborately regulated and orchestrated changes in gene expression profiles leads to muscle growth and development. In this study, RNA sequencing was used to profile embryonic chicken myoblasts and fused myotube transcriptomes, long non-coding RNAs (lncRNAs), and messenger RNAs (mRNAs) at four stages of myoblast differentiation. Of a total of 2484 lncRNA transcripts, 2288 were long intergenic non-coding RNAs (lincRNAs) and 198 were antisense lncRNAs. Additionally, 1530 lncRNAs were neighboring 2041 protein-coding genes (<10 kb upstream and downstream) and functionally enriched in several pathways related to skeletal muscle development that have been extensively studied, indicating that these genes may be in cis-regulatory relationships...
January 11, 2018: Genes
https://www.readbyqxmd.com/read/29323740/long-non-coding-rna-asbel-promotes-osteosarcoma-cell-proliferation-migration-and-invasion-by-regulating-microrna-21
#12
Jianhui Zhao, Zhongli Gao, Chao Zhang, Han Wu, Rui Gu, Rui Jiang
Osteosarcoma is the most common malignant bone tumor in children and adolescents with high rate of incidence, high frequency of recurrence and high degree of metastasis. This study aimed to investigate the effects of long noncoding RNA antisense ncRNA in the Abundant in neuroepithelium area (ANA)/B-cell translocation gene 3 (BTG3) locus (lncRNA ASBEL) on the pathogenesis of osteosarcoma. The expression levels of ASBEL in human osteoblast cells and human osteosarcoma cells were evaluated using qRT-PCR. Effects of ASBEL knockdown on cell viability, migration and invasion were detected using trypan blue exclusion assay, cell migration and invasion assay, respectively...
January 11, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29323737/mir-15b-hotair-p53-form-a-regulatory-loop-that-affects-the-growth-of-glioma-cells
#13
Guan Sun, Yingyi Wang, Junxia Zhang, Ning Lin, Yongping You
Among the malignant tumors of the human central nervous system, gliomas have the highest incidence and recurrence rate. Therefore, exploration of the molecular mechanism that underlies the development and progression of gliomas is of great clinical significance. Many studies have demonstrated that long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) play important roles in the development and progression of tumors. In the present study, both an RNAhybrid analysis and a dual-luciferase reporter gene assay confirmed that microRNA-15b (miR-15b) binding sites were present in the sequence of HOX transcript antisense RNA (HOTAIR)...
January 11, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29323050/long-non-coding-rna-nonmmug014387-promotes-schwann-cell-proliferation-after-peripheral-nerve-injury
#14
Bin Pan, Zhong-Ju Shi, Jia-Yin Yan, Jia-He Li, Shi-Qing Feng
Schwann cells play a critical role in peripheral nerve regeneration through dedifferentiation and proliferation. In a previous study, we performed microarray analysis of the sciatic nerve after injury. Accordingly, we predicted that long non-coding RNA NONMMUG014387 may promote Schwann cell proliferation after peripheral nerve injury, as bioinformatic analysis revealed that the target gene of NONMMUG014387 was collagen triple helix repeat containing 1 (Cthrc1). Cthrc1 may promote cell proliferation in a variety of cells by activating Wnt/PCP signaling...
December 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/29322937/predicting-binary-discrete-and-continued-lncrna-disease-associations-via-a-unified-framework-based-on-graph-regression
#15
Jian-Yu Shi, Hua Huang, Yan-Ning Zhang, Yu-Xi Long, Siu-Ming Yiu
BACKGROUND: In human genomes, long non-coding RNAs (lncRNAs) have attracted more and more attention because their dysfunctions are involved in many diseases. However, the associations between lncRNAs and diseases (LDA) still remain unknown in most cases. While identifying disease-related lncRNAs in vivo is costly, computational approaches are promising to not only accelerate the possible identification of associations but also provide clues on the underlying mechanism of various lncRNA-caused diseases...
December 21, 2017: BMC Medical Genomics
https://www.readbyqxmd.com/read/29322514/the-yin-and-yang-of-yy1-in-tumor-growth-and-suppression
#16
REVIEW
Levon M Khachigian
Yin Yang-1 (YY1) is a zinc finger protein and member of the GLI-Kruppel family that can activate or inactivate gene expression depending on interacting partners, promoter context and chromatin structure, and may be involved in the transcriptional control of ∼10% of the total mammalian gene set. A growing body of literature indicates that YY1 is overexpressed in multiple cancer types and that increased YY1 levels correlate with poor clinical outcomes in many cancers. However the role of YY1 in the promotion or suppression of tumor growth remains controversial and its regulatory effects may be tumor cell type dependent at least in experimental systems...
January 11, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29321583/allele-specific-repression-of-sox2-through-the-long-non-coding-rna-sox2ot
#17
Tobias C Messemaker, Selina M van Leeuwen, Patrick R van den Berg, Anke E J 't Jong, Robert-Jan Palstra, Rob C Hoeben, Stefan Semrau, Harald M M Mikkers
The transcription factor Sox2 controls the fate of pluripotent stem cells and neural stem cells. This gatekeeper function requires well-regulated Sox2 levels. We postulated that Sox2 regulation is partially controlled by the Sox2 overlapping long non-coding RNA (lncRNA) gene Sox2ot. Here we show that the RNA levels of Sox2ot and Sox2 are inversely correlated during neural differentiation of mouse embryonic stem cells (ESCs). Through allele-specific enhanced transcription of Sox2ot in mouse Sox2eGFP knockin ESCs we demonstrate that increased Sox2ot transcriptional activity reduces Sox2 RNA levels in an allele-specific manner...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321088/upregulation-of-long-non-coding-rna-tug1-promotes-bladder-cancer-cell-5-proliferation-migration-and-invasion-by-inhibiting-mir-29c
#18
Peng Guo, Guohui Zhang, Jialin Meng, Qian He, Zhihui Li, Yawei Guan
Bladder cancer (BC) is one of the leading causes of cancer-related death in the word. Long non-coding RNA (lncRNA) taurine-upregulated gene 1 (TUG1) plays an important role in the development and progression of numerous cancers, including BC. However, the exact role of TUG1 in modulating BC progression is still poorly known. In this study, we found that TUG1 was upregulated and microRNA-29c (miR-29c) was downregulated in BC tissues and cell lines. Overexpression of TUG1 promoted the cell proliferation of T24 and EJ cells, whereas TUG1 knockdown had the opposite effect...
January 10, 2018: Oncology Research
https://www.readbyqxmd.com/read/29321082/long-noncoding-rna-atb-promotes-proliferation-migration-and-invasion-in-bladder-cancer-by-suppressing-microrna-126
#19
Xingquan Zhai, Wei Xu
This study was aimed to explore the biological functions of long non-coding RNA activated by transforming growth factor-beta (lncRNA-ATB) in bladder cancer cells. For the expressions of lncRNA-ATB, miR-126 and KRAS, T24 cells were transfected with their specific vectors/shRNA or mimic/inhibitor. Then, cell viability, migration, invasion and apoptosis, as well as the protein levels of apoptosis-related factors and PI3K/AKT and mTOR signal pathways were measured, respectively. Further, the relationships of lncRNA-ATB and miR-126 or miR-126 and KRAS were analyzed by dual-luciferase report assay...
January 10, 2018: Oncology Research
https://www.readbyqxmd.com/read/29320577/genome-wide-profiling-of-the-piwi-interacting-rna-mrna-regulatory-networks-in-epithelial-ovarian-cancers
#20
Garima Singh, Jyoti Roy, Pratiti Rout, Bibekanand Mallick
PIWI-interacting (piRNAs), ~23-36 nucleotide-long small non-coding RNAs (sncRNAs), earlier believed to be germline-specific, have now been identified in somatic cells, including cancer cells. These sncRNAs impact critical biological processes by fine-tuning gene expression at post-transcriptional and epigenetic levels. The expression of piRNAs in ovarian cancer, the most lethal gynecologic cancer is largely uncharted. In this study, we investigated the expression of PIWILs by qRT-PCR and western blotting and then identified piRNA transcriptomes in tissues of normal ovary and two most prevalent epithelial ovarian cancer subtypes, serous and endometrioid by small RNA sequencing...
2018: PloS One
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