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https://www.readbyqxmd.com/read/28723657/an-emerging-function-of-circrna-mirnas-mrna-axis-in-human-diseases
#1
REVIEW
Dawei Rong, Handong Sun, Zhouxiao Li, Shuheng Liu, Chaoxi Dong, Kai Fu, Weiwei Tang, Hongyong Cao
Circular RNAs (circRNAs), a novel class of long noncoding RNAs, are characterized by a covalently closed continuous loop without 5' or 3' polarities structure and have been widely found in thousands of lives including plants, animals and human beings. Utilizing the high-throughput RNA sequencing (RNA-seq) technology, recent findings have indicated thata great deal of circRNAs, which are endogenous, stable, widely expressed in mammalian cells, often exhibit cell type-specific, tissue-specific or developmental-stage-specific expression...
July 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28721682/lncrna-zfas1-promotes-cell-migration-and-invasion-of-fibroblast-like-synoviocytes-by-suppression-of-mir-27a-in-rheumatoid-arthritis
#2
Yang Ye, Xiaomei Gao, Nanping Yang
Rheumatoid arthritis (RA) is a systemic and chronic inflammatory disease. Synoviocyte migration and invasion were found to be essential to the pathology of RA. Upregulation of long noncoding RNA ZFAS1 has been observed in cancers and promotes cell migration and invasion. To date, the functions and mechanisms of ZFAS1 in RA have not been revealed. In this study, we analyzed expression pattern of ZFAS1 in RA patients and found that ZFAS1 expression was increased in synovial tissue and fibroblast-like synoviocytes (FLS) from RA patients (RA-FLS) compared with that in healthy donors...
July 18, 2017: Human Cell
https://www.readbyqxmd.com/read/28721581/autophagy-regulated-by-lncrna-hotair-contributes-to-the-cisplatin-induced-resistance-in-endometrial-cancer-cells
#3
Meng-Yao Sun, Jian-Yong Zhu, Chun-Yan Zhang, Miao Zhang, Ya-Nan Song, Khalid Rahman, Li-Jun Zhang, Hong Zhang
OBJECTIVES: To identify whether lncRNAs (long non-coding RNA) participate in the regulation of cisplatin-resistant induced autophagy in endometrial cancer cells. RESULTS: Autophagy activity was significantly boosted in cisplatin-resistant Ishikawa cells, a human endometrial cancer cell line, compared with that in parental Ishikawa cells. After analyzing the overall long noncoding RNA (lncRNA) profiling, a meaningful lncRNA, HOTAIR, was identified. It was down-regulated simultaneously in cisplatin-resistant Ishikawa cells and parental Ishikawa cells treated with cisplatin...
July 18, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28715796/application-of-long-noncoding-rnas-in-osteosarcoma-biomarkers-and-therapeutic-targets
#4
Zhihong Li, Pengcheng Dou, Tang Liu, Shasha He
Osteosarcoma is the most common primary bone malignancy in children and adolescents. Although improvements in therapeutic strategies were achieved, the outcome remains poor for most patients with metastatic or recurrent osteosarcoma. Therefore, it is imperative to identify novel and effective prognostic biomarker and therapeutic targets for the disease. Long noncoding RNAs (lncRNAs) are a novel class of RNA molecules defined as transcripts >200 nucleotides that lack protein coding potential. Many lncRNAs are deregulated in cancer and are important regulators for malignancies...
July 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28710406/comprehensive-circular-rna-profiling-reveals-the-regulatory-role-of-the-circrna-100338-mir-141-3p-pathway-in-hepatitis-b-related-hepatocellular-carcinoma
#5
Xiu-Yan Huang, Zi-Li Huang, Yong-Hua Xu, Qi Zheng, Zi Chen, Wei Song, Jian Zhou, Zhao-You Tang, Xin-Yu Huang
Circular RNAs (circRNAs) represent a class of endogenous noncoding RNAs that have recently been recognized as important regulators of gene expression and pathological networks. However, their transcriptional activities and functional mechanisms in cancer remain largely unknown. Here, we present results from a global circRNA expression and functional analysis of patients with hepatocellular carcinoma (HCC). Using a circRNA microarray, we identified 226 differentially expressed circRNAs, of which 189 were significantly upregulated and 37 were downregulated...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28705739/long-noncoding-rna-linc00346-promotes-the-malignant-phenotypes-of-bladder-cancer
#6
Tingyu Ye, Wei Ding, Nanxiong Wang, Hang Huang, Yue Pan, Anyang Wei
BACKGROUND: More and more reports have demonstrated that long noncoding RNAs (lncRNAs) play an important role in the development of a variety of carcinomas, including bladder cancer. However, only a small fraction of them have been characterized. Linc00346 have been found to be upregulated in bladder cancer tissues compared to normal tissues in a microarray-based lncRNA profiling study. In this study, we would like to explore the expression pattern and functional role of linc00346 in bladder cancer...
July 10, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28703277/mirnas-and-ovarian-cancer-an-overview
#7
REVIEW
Bornali Deb, Arif Uddin, Supriyo Chakraborty
Ovarian cancer (OC) is the sixth most common cancer in women globally. However, even with the advances in detection andtherapeutics it still represents the most dangerous gynecologic malignancy in women of the industrialized countries. The discovery of micro- RNAs (miRNA), a small noncoding RNA molecule targeting multiple mRNAs and regulation of gene expression by triggering translation repression and/or RNA degradation, has revealed the existence of a new array for regulation of genes involved in cancer. This review summarizes the current knowledge regarding the role of miRNAs expression in OC...
July 13, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28701486/long-noncoding-rna-and-cancer-a-new-paradigm
#8
REVIEW
Arunoday Bhan, Milad Soleimani, Subhrangsu S Mandal
In addition to mutations or aberrant expression in the protein-coding genes, mutations and misregulation of noncoding RNAs, in particular long noncoding RNAs (lncRNA), appear to play major roles in cancer. Genome-wide association studies of tumor samples have identified a large number of lncRNAs associated with various types of cancer. Alterations in lncRNA expression and their mutations promote tumorigenesis and metastasis. LncRNAs may exhibit tumor-suppressive and -promoting (oncogenic) functions. Because of their genome-wide expression patterns in a variety of tissues and their tissue-specific expression characteristics, lncRNAs hold strong promise as novel biomarkers and therapeutic targets for cancer...
July 12, 2017: Cancer Research
https://www.readbyqxmd.com/read/28698395/long-noncoding-rna-xist-promotes-malignancies-of-esophageal-squamous-cell-carcinoma-via-regulation-of-mir-101-ezh2
#9
Xiaoliang Wu, Xiaoxiao Dinglin, Xing Wang, Wen Luo, Qi Shen, Yong Li, Ling Gu, Qianghua Zhou, Haotu Zhu, Yanjie Li, Chaodi Tan, Xianzi Yang, Zhenfeng Zhang
The long non-coding RNA XIST is a long non-coding RNA that associates with polycomb repressive complex 2 to regulate X-chromosome inactivation in female mammals. The biological roles as well as the underlying mechanisms of XIST in esophageal squamous cell carcinoma remained yet to be solved. Our data indicated that XIST was significantly upregulated in esophageal squamous cancerous tissues and cancer cell lines, as compared with that in the corresponding non-cancerous tissues and immortalized normal squamous epithelial cells...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28698299/neat1-is-a-p53-inducible-lincrna-essential-for-transformation-suppression
#10
Stephano S Mello, Carolyn Sinow, Nitin Raj, Pawel K Mazur, Kathryn Bieging-Rolett, Daniela Kenzelmann Broz, Jamie F Conklin Imam, Hannes Vogel, Laura D Wood, Julien Sage, Tetsuro Hirose, Shinichi Nakagawa, John Rinn, Laura D Attardi
The p53 gene is mutated in over half of all cancers, reflecting its critical role as a tumor suppressor. Although p53 is a transcriptional activator that induces myriad target genes, those p53-inducible genes most critical for tumor suppression remain elusive. Here, we leveraged p53 ChIP-seq (chromatin immunoprecipitation [ChIP] combined with high-throughput sequencing) and RNA-seq (RNA sequencing) data sets to identify new p53 target genes, focusing on the noncoding genome. We identify Neat1, a noncoding RNA (ncRNA) constituent of paraspeckles, as a p53 target gene broadly induced by mouse and human p53 in different cell types and by diverse stress signals...
July 11, 2017: Genes & Development
https://www.readbyqxmd.com/read/28696308/tsrna-signatures-in-cancer
#11
Veronica Balatti, Giovanni Nigita, Dario Veneziano, Alessandra Drusco, Gary S Stein, Terri L Messier, Nicholas H Farina, Jane B Lian, Luisa Tomasello, Chang-Gong Liu, Alexey Palamarchuk, Jonathan R Hart, Catherine Bell, Mariantonia Carosi, Edoardo Pescarmona, Letizia Perracchio, Maria Diodoro, Andrea Russo, Anna Antenucci, Paolo Visca, Antonio Ciardi, Curtis C Harris, Peter K Vogt, Yuri Pekarsky, Carlo M Croce
Small, noncoding RNAs are short untranslated RNA molecules, some of which have been associated with cancer development. Recently we showed that a class of small RNAs generated during the maturation process of tRNAs (tRNA-derived small RNAs, hereafter "tsRNAs") is dysregulated in cancer. Specifically, we uncovered tsRNA signatures in chronic lymphocytic leukemia and lung cancer and demonstrated that the ts-4521/3676 cluster (now called "ts-101" and "ts-53," respectively), ts-46, and ts-47 are down-regulated in these malignancies...
July 10, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28690657/epigenetic-silencing-of-mort-is-an-early-event-in-cancer-and-is-associated-with-luminal-receptor-positive-breast-tumor-subtypes
#12
Lukas Vrba, Bernard Walter Futscher
Immortality is an essential characteristic of cancer cells; a recent transcriptomic study of epithelial cell immortalization has linked epigenetic silencing of the long noncoding RNA Mortal Obligate RNA Transcript (MORT; alias ZNF667-AS1) to this process. This study evaluated the epigenetic and transcriptional state of MORT in two premalignant conditions-ductal carcinomas in situ and colon adenomas. Results show that MORT silencing is an early epigenetic event in human carcinogenesis, likely occurring near the point where premalignant cells gain immortality; this epigenetic silencing is maintained throughout malignant transformation and metastatic growth...
June 2017: Journal of Breast Cancer
https://www.readbyqxmd.com/read/28689810/lincrna-p21-knockdown-enhances-radiosensitivity-of-hypoxic-tumor-cells-by-reducing-autophagy-through-hif-1-akt-mtor-p70s6k-pathway
#13
Yueming Shen, Yingying Liu, Ting Sun, Wei Yang
Hypoxic conditions are common in solid tumors and have a significant effect on tumor progression, therapeutic and prognosis. Long noncoding RNAs (lncRNAs) are longer than 200 nucleotides and cannot be translated into proteins, which play important roles in some diseases including cancer. Although previous analysis have showed that long intergenic non-coding RNA (lincRNA)-p21 is hypoxia-responsive and functions as a new regulator of cell cycle, apoptosis and warburg effect in cervical cancer, its biological roles in hypoxic hepatoma and glioma are unknown...
July 6, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28688193/knockdown-of-lncrna-hulc-inhibits-proliferation-migration-invasion-and-promotes-apoptosis-by-sponging-mir-122-in-osteosarcoma
#14
Daliang Kong, Yang Wang
Osteosarcoma is a rare malignant bone tumor with high degree of malignancy. HULC (highly upregulated in liver cancer), a long noncoding RNA (lncRNA) was involved in hepatocellular carcinoma development and progression, but its underlying mechanism in osteosarcoma is unknown. The aim of this study was to explore the functional role of HULC in osteosarcoma. The study was conducted in human osteosarcoma cell lines and the expression of HULC in the cell lines was detected by qRT-PCR. Furthermore, the effects of HULC on tumorigenicity of osteosarcoma cells were evaluated by in vitro assays...
July 8, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28687618/huwe1-sustains-normal-ovarian-epithelial-cell-transformation-and-tumor-growth-through-the-histone-h1-3-h19-cascade
#15
Dong Yang, Bin Sun, Xiaohong Zhang, Daomei Cheng, Xiaoping Yu, Lanzhen Yan, Lei Li, Sanqi An, Hua Jiang, Anna Lasorella, Antonio Iavarone, Shu Zhang, Fangdong Zou, Xudong Zhao
Ubiquitination-directed protein degradation is important in many cancers for tumor initiation and maintenance, and E3 ligases containing HECT domains are emerging as new therapeutic targets. In contrast to many other E3 ligases, the role of HUWE1 in ovarian cancer where HUWE1 is dysregulated has been unclear. Here we report that genetic deletion of Huwe1 in the mouse inhibits transformation of ovary surface epithelium cells without significantly affecting cell survival and apoptosis, and that Huwe1 deletion after tumors have been initiated inhibits tumor growth...
July 7, 2017: Cancer Research
https://www.readbyqxmd.com/read/28679652/long-noncoding-rna-expression-profile-in-cytogenetically-normal-acute-myeloid-leukemia-identifies-a-distinct-signature-and-a-new-biomarker-in-npm1-mutated-patients
#16
Etienne De Clara, Morgane Gourvest, Hanjing Ma, François Vergez, Marie Tosolini, Sébastien Dejean, Cécile Demur, Eric Delabesse, Christian Recher, Christian Touriol, Maria Paola Martelli, Brunangelo Falini, Pierre Brousset, Marina Bousquet
Long noncoding RNAs are defined as transcripts larger than 200 nucleotides but without protein-coding potential. Cumulative evidence points towards an important role of long noncoding RNAs in cancer initiation, development and progression. In this study we sought to evaluate the long noncoding RNA expression profile of patients with cytogenetically normal acute myeloid leukemia. RNA-sequencing of forty cytogenetically normal acute myeloid leukemia patients allowed us to quantify 11036 long noncoding RNAs. Among them more than 8000 were previously-undescribed long noncoding RNAs...
July 4, 2017: Haematologica
https://www.readbyqxmd.com/read/28669338/microrna-key-to-angiogenesis-regulation-mirna-biology-and-therapy
#17
Ankit Tiwari, Bratati Mukherjee, Manjusha Dixit
Angiogenesis is involved in maintaining normal physiological processes like embryonic development, wound healing, inflammation and reproduction. Pathogenesis of various diseases like diabetic retinopathy, rheumatoid arthritis and cancer are associated with imbalanced angiogenesis. Angiogenic stimulators and inhibitors act together for keeping angiogenic switch in balance. Recently miRNAs have been found to regulate various stages of angiogenesis. miRNAs are 21-23 nucleotides long, single stranded, noncoding RNA molecules generated endogenously...
June 30, 2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/28669171/hotair-long-noncoding-rna-is-not-a-biomarker-for-acute-myeloid-leukemia-aml-in-iranian-patients
#18
Arezou Sayad, Abbas Hajifathali, Amir Ali Hamidieh, Elham Roshandel, Mohammad Taheri
Accumulating evidence indicates that lncRNAs may have potential as new biomarkers to predict prognosis of different human cancers. HOTAIR lncRNA, transcribed from the human HOX locus, has been suggested to regulate gene expression of important target genes and up-regulation has been noted in malignancies. The role of HOX transcript antisense RNA in acute myeloid leukemia (AML) was investigated in the present case control study. HOTAIR expression was evaluated in blood samples of twenty five de novo AML patients and fifty healthy controls using real-time quantitative reverse transcription-PCR (qRT-PCR)...
June 25, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28667076/rna-editing-in-pathogenesis-of-cancer
#19
REVIEW
Bora E Baysal, Shraddha Sharma, Seyedsasan Hashemikhabir, Sarath Chandra Janga
Several adenosine or cytidine deaminase enzymes deaminate transcript sequences in a cell type or environment-dependent manner by a programmed process called RNA editing. RNA editing enzymes catalyze A>I or C>U transcript alterations and have the potential to change protein coding sequences. In this brief review, we highlight some recent work that shows aberrant patterns of RNA editing in cancer. Transcriptome sequencing studies reveal increased or decreased global RNA editing levels depending on the tumor type...
June 30, 2017: Cancer Research
https://www.readbyqxmd.com/read/28664617/down-regulation-of-long-noncoding-rna-malat1-by-rna-interference-inhibits-proliferation-and-induces-apoptosis-in-multiple-myeloma
#20
Hui Liu, Huihan Wang, Bin Wu, Kun Yao, Aijun Liao, Miao Miao, Yang Li, Wei Yang
Multiple myeloma (MM) is a neoplastic plasma-cell disorder characterized by abnormal proliferation of monoclonal plasma cells in the bone marrow. Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), an evolutionarily highly conserved long non-coding RNA was originally identified in metastatic non-small cell lung cancer and has been reported to be up-regulated in many other cancers. However, the function of MALAT1 in MM remains unknown. In the present study, by transfecting MM cells with MALAT1-specific short hairpin RNA (shRNA) expression plasmids, the role of MALAT1 in the proliferation and apoptosis of MM cells was investigated in vitro, and the tumorigenicity of MALAT1-silenced cells was evaluated in vivo...
June 30, 2017: Clinical and Experimental Pharmacology & Physiology
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