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https://www.readbyqxmd.com/read/28737113/micrornas-roles-in-regulating-neuroinflammation
#1
Andrew D Gaudet, Laura K Fonken, Linda R Watkins, Randy J Nelson, Phillip G Popovich
MicroRNAs (miRNAs) are small noncoding RNAs that broadly affect cellular and physiological function in all multicellular organisms. Here, the role of miRNAs in neuroinflammation is considered. miRNAs are 21- to 23-oligonucleotide RNAs that regulate translation of specific RNAs by binding to complementary regulatory RNA sequences, thereby causing mRNA degradation or sequestration. More than 5000 miRNAs likely exist in humans, and each miRNA binds an average of 200 RNAs. Specific immunomodulatory miRNAs can regulate a set of RNAs in a coordinated manner, suggesting that effective miRNA-based therapeutic manipulations for neuroinflammatory conditions may be revealed...
July 1, 2017: Neuroscientist: a Review Journal Bringing Neurobiology, Neurology and Psychiatry
https://www.readbyqxmd.com/read/28735352/long-noncoding-rna-expression-profiles-in-chondrogenic-and-hypertrophic-differentiation-of-mouse-mesenchymal-stem-cells
#2
Zhen Cao, Song Huang, Jianmei Li, Yun Bai, Ce Dou, Chuan Liu, Fei Kang, Xiaoshan Gong, Haibin Ding, Tianyong Hou, Shiwu Dong
Long noncoding RNAs (lncRNAs) are important regulators for a variety of biological processes. Chondrogenic differentiation of mesenchymal stem cells (MSCs) is a crucial stage in chondrogenesis while chondrocyte hypertrophy is related to endochondral ossification and osteoarthritis. However, the effects of lncRNAs on chondrogenic and hypertrophic differentiation of mouse MSCs are unclear. To explore the potential mechanisms of lncRNAs during chondrogenesis and chondrocyte hypertrophy, microarray was performed to investigate the expression profiles of lncRNA and mRNA in MSCs, pre-chondrocytes, and hypertrophic chondrocytes...
July 22, 2017: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/28733519/long-noncoding-rna-ab073614-promotes-the-malignance-of-glioma-by-activating-wnt-%C3%AE-catenin-signaling-through-downregulating-sox7
#3
Yuqian Li, Gang Zhu, Wen Zeng, Jiancai Wang, Zhihong Li, Bao Wang, Bo Tian, Dan Lu, Xingye Zhang, Guodong Gao, Lihong Li
Long noncoding RNA (lncRNA) AB073614 has recently shown to be aberrantly increased and identified as a poor prognostic biomarker in human glioma. However, the potential mechanisms remain unknown. This study demonstrated that AB073614 expression was significantly upregulated in both glioma tissues and cell lines, and glioma patients with high AB073614 expression had lower overall survival rates. Importantly, silencing AB073614 expression remarkably inhibited U251 cell proliferation, migration, and invasion in vitro, as well as suppressed tumor formation in vivo...
July 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732507/long-noncoding-rna-expression-profiles-in-sub-lethal-heat-treated-hepatoma-carcinoma-cells
#4
Qingsong Deng, Shihan Chen, Chunchuan Fu, Jiayun Jiang, Mengda Zou, Yunhua Tan, Xiaofei Wang, Feng Xia, Kai Feng, Kuansheng Ma, Ping Bie
BACKGROUND: Sub-lethal heat treatment characterizes a transition zone of radiofrequency ablation (RFA) which explains hepatocellular carcinoma (HCC) residual cancer occurrence in this area after RFA treatment. The biochemistry of residual cancer cell recurrence is poorly understood, but long noncoding RNAs (lncRNAs) may have aberrant expression that is associated with diverse cancers. Thus, we measured lncRNA gene expression in sub-lethally heat-treated HCC cells using microarray. METHOD: Differentially expressed lncRNA and mRNA were measured with an Agilent Human lncRNA + mRNA Array V4...
July 21, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28732463/common-and-phylogenetically-widespread-coding-for-peptides-by-bacterial-small-rnas
#5
Robin C Friedman, Stefan Kalkhof, Olivia Doppelt-Azeroual, Stephan A Mueller, Martina Chovancová, Martin von Bergen, Benno Schwikowski
BACKGROUND: While eukaryotic noncoding RNAs have recently received intense scrutiny, it is becoming clear that bacterial transcription is at least as pervasive. Bacterial small RNAs and antisense RNAs (sRNAs) are often assumed to be noncoding, due to their lack of long open reading frames (ORFs). However, there are numerous examples of sRNAs encoding for small proteins, whether or not they also have a regulatory role at the RNA level. METHODS: Here, we apply flexible machine learning techniques based on sequence features and comparative genomics to quantify the prevalence of sRNA ORFs under natural selection to maintain protein-coding function in 14 phylogenetically diverse bacteria...
July 21, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28732375/prognostic-role-of-long-noncoding-rna-zfas1-in-cancer-patients-a-systematic-review-and-meta-analysis
#6
Tian Lan, Xiong Lan, Guangcai Li, Zhen Zheng, Minghua Zhang, Faxiang Qin
Long noncoding RNA ZFAS1 has been identified as a crucial role in the tumorigenesis of malignant tumors. Numerous studies reported that the expression levels of ZFAS1 in tumor tissues were dramatically higher than that in adjacent normal tissues. We conducted a meta-analysis to investigate the correlation between ZFAS1 expression and clinical outcomes of cancer patients. The databases of PubMed, EMBASE, Web of Science, Cochrane Library, CNKI and WanFang were retrieved for eligible studies. A total of 841 patients from 9 studies were eventually included...
July 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28731781/lncrna-pvt1-facilitates-invasion-through-upregulation-of-mmp9-in-nonsmall-cell-lung-cancer-cell
#7
Wei Chen, Huayun Zhu, Li Yin, Tingting Wang, Jianfeng Wu, Jianhua Xu, Hua Tao, Juying Liu, Xia He
Lung cancer is the most common solid tumor around the world. It has been reported that upregulation of long noncoding RNA (lncRNA) plasmacytoma variant translocation 1 (lncRNA-PVT1) is closely associated with tumor metastasis. However, the function and underlying molecular mechanism of lncRNA-PVT1 in nonsmall cell lung cancer (NSCLC) invasion remain unknown. In this study, we found that overexpression of lncRNA-PVT1 promoted the invasive ability of NSCLC cells, whereas silence of lncRNA-PVT1 suppressed cell invasion...
July 21, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28731027/ptenp1-acts-as-a-cerna-to-regulate-pten-by-sponging-mir-19b-and-explores-the-biological-role-of-ptenp1-in-breast-cancer
#8
R-K Li, J- Gao, L-H Guo, G-Q Huang, W-H Luo
This study aimed to investigate role of long noncoding RNA PTENP1 regulating PTEN expression via miR-19b to affect breast cancer (BC) progression. We measured expressions of PTENP1, miR-19b and PTEN in 65 matched BC cancerous and noncancerous tissues by quantitative real-time fluorescence PCR (qRT-PCR) and investigated the biological effects of PTENP1 in BC MDA-MB-231 cells by several in vitro experiments including CCK8, wound healing, transwell and Annexin V-FITC/PI analysis. Besides, the competing endogenous RNA (ceRNA) activity of PTENP1 on miR-19b was detected by luciferase reporter assay, and the expressions of related genes and proteins were determined by western blot assay and qRT-PCR...
July 21, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28728844/long-non-coding-rna-pcat7-regulates-elf2-signaling-through-inhibition-of-mir-134-5p-in-nasopharyngeal-carcinoma
#9
Yejun Liu, Zezhang Tao, Jining Qu, Xuhong Zhou, Chenghong Zhang
While some long noncoding RNAs (lncRNAs) might promote nasopharyngeal carcinoma (NPC) initiation and progression, the involved molecular mechanisms remain largely unclear. Here, we discovered the novel LncRNA, prostate cancer associated transcript 7 (PCAT7), which was overexpressed and associated with worse prognosis in NPC. Decreased PCAT7 expression was found to significantly suppress tumor cell proliferation in vitro, and inhibited tumor growth and reduced the expression of proliferation antigen Ki-67 in vivo...
July 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28724429/the-noncoding-rna-hoxd-as1-is-a-critical-regulator-of-the-metastasis-and-apoptosis-phenotype-in-human-hepatocellular-carcinoma
#10
Shan Lu, Jiansheng Zhou, Yimin Sun, Nan Li, Mingyong Miao, Binghua Jiao, Huan Chen
BACKGROUND: Despite accumulating evidence that long noncoding RNAs (lncRNAs) are associated with cancer development in multiple types of cancer, the biological roles of many lncRNAs in human hepatocellular carcinoma (HCC) metastasis have not been well characterized. METHODS: A lncRNA+ mRNA human gene expression microarray analysis was used to identify differentially expressed lncRNAs in metastatic HCC tissues compared to non-metastatic tissue. RESULTS: We observed remarkable overexpression of HOXD-AS1 in metastatic cancer tissues...
July 19, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28723657/an-emerging-function-of-circrna-mirnas-mrna-axis-in-human-diseases
#11
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
#12
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
#13
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/28721075/lincrna-p21-inhibits-invasion-and-metastasis-of-hepatocellular-carcinoma-through-mir-9-e-cadherin-cascade-signaling-pathway-molecular-mechanism
#14
Gangqiang Ding, Zhen Peng, Jia Shang, Yi Kang, Huibin Ning, Chongshan Mao
In the previous study, it was found that long intergenic noncoding RNA-p21 (lincRNA-p21) was downregulated in hepatocellular carcinoma (HCC) and lincRNA-p21 overexpression inhibited tumor invasion through inducing epithelial-mesenchymal transition. However, the underlying mechanism was not fully elaborated. In this study, lincRNA-p21 expression was measured in 12 paired HCC and nontumor adjacent normal tissues by quantitative real-time polymerase chain reaction. The effects of lincRNA-p21 on HCC cells were studied using lentivirus expressing lincRNA-p21 vector in vitro...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28715796/application-of-long-noncoding-rnas-in-osteosarcoma-biomarkers-and-therapeutic-targets
#15
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/28715379/detection-of-microrna-expression-in-peritoneal-membrane-of-rats-using-quantitative-real-time-pcr
#16
Keiji Hirai, Hiromichi Yoshizawa, Toshimi Imai, Yusuke Igarashi, Ichiro Hirahara, Susumu Ookawara, Kenichi Ishibashi, Yoshiyuki Morishita
MicroRNAs (miRNAs) are small noncoding RNAs that regulate messenger RNA expression post-transcriptionally. The miRNA expression profile has been investigated in various organs and tissues in rat. However, standard methods for the purification of miRNAs and detection of their expression in rat peritoneal membrane have not been well established. We have developed an effective and reliable method to purify and quantify miRNAs using quantitative real-time reverse-transcription polymerase chain reaction (qRT-PCR) in rat peritoneal membrane...
June 27, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28713594/small-molecule-big-prospects-microrna-in-pregnancy-and-its-complications
#17
REVIEW
Meng Cai, Gopi K Kolluru, Asif Ahmed
MicroRNAs are small, noncoding RNA molecules that regulate target gene expression in the posttranscriptional level. Unlike siRNA, microRNAs are "fine-tuners" rather than "switches" in the regulation of gene expression; thus they play key roles in maintaining tissue homeostasis. The aberrant microRNA expression is implicated in the disease process. To date, numerous studies have demonstrated the regulatory roles of microRNAs in various pathophysiological conditions. In contrast, the study of microRNA in pregnancy and its associated complications, such as preeclampsia (PE), fetal growth restriction (FGR), and preterm labor, is a young field...
2017: Journal of Pregnancy
https://www.readbyqxmd.com/read/28710621/rna-seq-based-comparative-transcriptomics-rna-preparation-and-bioinformatics
#18
Antonio Rodríguez-García, Alberto Sola-Landa, Carlos Barreiro
The major transcriptome analysis is the determination of differentially expressed genes across experimental conditions. For this, the next-generation sequencing of RNA (RNA-seq) is an increasingly cost-effective technology for the analysis of transcriptomes with several advantages over gene expression microarrays, such as its higher sensitivity and accuracy, broader dynamic range, and the ability to detect novel transcripts, including noncoding RNA molecules, at nucleotide-level resolution. Although these advantages, many microbiology laboratories have not yet applied RNA-seq analyses to their investigations...
2017: Methods in Molecular Biology
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
#19
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/28710102/the-telomeric-noncoding-rna-terra-regulates-telomere-stability
#20
(no author information available yet)
TERRA activates the DNA damage response at short telomeres to prevent premature senescence.
July 14, 2017: Cancer Discovery
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