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https://www.readbyqxmd.com/read/28420760/novel-lnc-rna-regulated-by-hif-1-inhibits-apoptotic-cell-death-in-the-renal-tubular-epithelial-cells-under-hypoxia
#1
Imari Mimura, Yosuke Hirakawa, Yasuharu Kanki, Natsuki Kushida, Ryo Nakaki, Yutaka Suzuki, Tetsuhiro Tanaka, Hiroyuki Aburatani, Masaomi Nangaku
Chronic tubulointerstitial hypoxia plays an important role as the final common pathway to end-stage renal disease. HIF-1 (hypoxia-inducible factor-1) is a master transcriptional factor under hypoxia, regulating downstream target genes. Genome-wide analysis of HIF-1 binding sites using high-throughput sequencers has clarified various kinds of downstream targets and made it possible to demonstrate the novel roles of HIF-1. Our aim of this study is to identify novel HIF-1 downstream epigenetic targets which may play important roles in the kidney...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28391028/lncrna-expression-profile-of-%C3%AE-np63%C3%AE-in-cervical-squamous-cancers-and-its-suppressive-effects-on-lif-expression
#2
Lili Qian, Fei Xu, Xiaolin Wang, Ming Jiang, Juan Wang, Weiguo Song, Dabao Wu, Zhen Shen, Dingqing Feng, Bin Ling, Yong Cheng, Weihua Xiao, Ge Shan, Ying Zhou
We aim to determine the lncRNA targets of ΔNp63α in cervical cancer and molecular programs in cancerous differentiation. Different profiles of the lncRNAs were assayed and validated in overexpressing p63 SiHa cells (SiHa/ΔNp63α) and the control cell lines (SiHa/pCon). ENST00000422259, ENST00000447565 (Lnc-LIF-AS) and ENST00000469965, together with their related antisense mRNA DPYD (dihydropyrimidine dehydrogenase, a pyrimidine catabolic pathway gene), LIF (leukemia inhibitor factor) and FLNC (filamin C) were all notably differentially expressed in both ΔNp63α overexpression cells and knockdown cells...
April 6, 2017: Cytokine
https://www.readbyqxmd.com/read/28371600/hur-stabilizes-lnc-sox5-mrna-to-promote-tongue-carcinogenesis
#3
Lifang Wang, Shucheng Ye, Junye Wang, Zhenfang Gu, Yanhui Zhang, Chunmei Zhang, Xuezhen Ma
Long noncoding RNAs (lncRNAs) have been recently regarded as systemic regulators in multiple biological processes including tumorigenesis. In this study, we report an ultra-highly expressed lncRNA, lnc-Sox5, in tongue tumor tissues. The results imply that lnc-Sox5 may play vital role in tongue carcinoma progression. We observed that the growth of Tca8113 cells was suppressed by lnc-Sox5 downregulation. Additionally, lnc-Sox5 knockdown simultaneously increased Tca8113 cell apoptosis, but the cell cycle was arrested...
April 2017: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/28249151/induction-of-the-long-noncoding-rna-nbr2-from-the-bidirectional-brca1-promoter-under-hypoxic-conditions
#4
J Erin Wiedmeier, Anna Ohlrich, Adrian Chu, Michael R Rountree, Mitchell S Turker
BRCA1 plays an important role in preventing breast cancer and is often silenced or repressed in sporadic cancer. The BRCA1 promoter is bidirectional: it drives transcription of the long non-coding (lnc) NBR2 transcript in the opposite orientation relative to the BRCA1 transcript. Hypoxic conditions repress BRCA1 transcription, but their effect on expression of the NBR2 transcript has not been reported. We used quantitative RT-PCR to measure BRCA1 and NBR2 transcript levels in 0% and 1% oxygen in MCF-7 breast cancer cells and found that NBR2 transcript levels increased as a function of time under hypoxic conditions, whereas BRCA1 mRNA levels were repressed...
February 2017: Mutation Research
https://www.readbyqxmd.com/read/28111341/dysregulation-of-long-noncoding-rnas-in-mouse-testes-and-spermatozoa-after-exposure-to-cadmium
#5
Fengxin Gao, Peng Zhang, Hongyan Zhang, Yunhui Zhang, Yunwen Zhang, Qingyun Hao, Xiaoning Zhang
There is increasing evidence that cadmium (Cd) exposure can cause male subfertility and even complete infertility in mammals. Long noncoding (lnc) RNAs are critical for spermatogenesis, and their dysregulation might lead to male infertility. However, whether they are involved in Cd-induced subfertility is unknown. Here we found that intraperitoneal exposure to Cd in mice led to male subfertility indicated by reductions in testicular sperm production and motility, and by abnormal morphology. Testicular and sperm RNAs were used to investigate lncRNA expression profiles by strand-specific RNA sequencing at the transcriptome level to help determine any RNA-related mechanisms in Cd-induced subfertility...
January 19, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28073357/long-noncoding-rna-repertoire-in-chicken-liver-and-adipose-tissue
#6
Kévin Muret, Christophe Klopp, Valentin Wucher, Diane Esquerré, Fabrice Legeai, Frédéric Lecerf, Colette Désert, Morgane Boutin, Frédéric Jehl, Hervé Acloque, Elisabetta Giuffra, Sarah Djebali, Sylvain Foissac, Thomas Derrien, Sandrine Lagarrigue
BACKGROUND: Improving functional annotation of the chicken genome is a key challenge in bridging the gap between genotype and phenotype. Among all transcribed regions, long noncoding RNAs (lncRNAs) are a major component of the transcriptome and its regulation, and whole-transcriptome sequencing (RNA-Seq) has greatly improved their identification and characterization. We performed an extensive profiling of the lncRNA transcriptome in the chicken liver and adipose tissue by RNA-Seq. We focused on these two tissues because of their importance in various economical traits for which energy storage and mobilization play key roles and also because of their high cell homogeneity...
January 10, 2017: Genetics, Selection, Evolution: GSE
https://www.readbyqxmd.com/read/27934480/a-mechanistic-study-on-nanoparticle-mediated-glucagon-like-peptide-1-glp-1-secretion-from-enteroendocrine-l-cells
#7
Ana Beloqui, Mireille Alhouayek, Dario Carradori, Kevin Vanvarenberg, Giulio G Muccioli, Patrice D Cani, Véronique Préat
L cells have attracted particular interest because of the pleiotropic effects of their secreted peptides (i.e., glucagon-like peptide (GLP) 1 and 2, peptide YY (PYY)). L cells express different G-protein-coupled receptors (GPCRs) that can be activated by endogenous ligands found in the gut lumen. We herein hypothesized that lipid-based nanoparticles could mimic endogenous ligands and thus activate GLP-1 secretion in type 2 diabetes mellitus treatment. To assess this hypothesis, lipid-based nanoparticles (nanostructured lipid carriers (NLC), lipid nanocapsules (LNC), and liposomes) and PLGA nanoparticles were added to the L cells and GLP-1 secretion was quantified...
December 5, 2016: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/27927271/long-noncoding-rna-expression-signatures-of-abdominal-aortic-aneurysm-revealed-by-microarray
#8
Yao Guo Yang, Mei Xia Li, Lei Kou, You Zhou, Yan Wen Qin, Xiao Jun Liu, Zhong Chen
OBJECTIVE: This study is aimed at observing the role of long noncoding RNAs (lncRNAs) in the pathogenesis of abdominal aortic aneurysm (AAA). METHODS: LncRNA and mRNA expression signatures of AAA tissues and normal abdominal aortic tissues (NT) were analyzed by microarray and further verified by Real-time quantitative reverse-transcription PCR (qRT-PCR). The lncRNAs-mRNAs targeting relationships were identified using computational analysis. The effect of lnc-ARG on 5-lipoxygenase (ALOX5) expression was tested in HeLa cells...
October 2016: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/27780975/the-role-and-possible-mechanism-of-lncrna-u90926-in-modulating-3t3-l1-preadipocyte-differentiation
#9
J Chen, Y Liu, S Lu, L Yin, C Zong, S Cui, D Qin, Y Yang, Q Guan, X Li, X Wang
BACKGROUND: Obesity is a risk factor for metabolic diseases, while preadipocyte differentiation or adipogenesis is closely related to obesity occurrence. Long noncoding RNAs (lncRNAs) are a unique class of transcripts in regulation of a variety of biological processes. Using cDNA microarray, we found lncRNA U90926 is negatively correlated with 3T3-L1 preadipocyte differentiation. OBJECTIVE: The aim of this study was to explore the role of lncRNA U90926 (lnc-U90926) in adipogenesis and the underlying mechanisms...
February 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/27707719/p2x7-receptors-in-body-temperature-locomotor-activity-and-brain-mrna-and-lncrna-responses-to-sleep-deprivation
#10
Christopher J Davis, Ping Taishi, Kimberly A Honn, John N Koberstein, James M Krueger
The ionotropic purine type 2X7 receptor (P2X7R) is a nonspecific cation channel implicated in sleep regulation and brain cytokine release. Many endogenous rhythms covary with sleep, including locomotor activity and core body temperature. Furthermore, brain-hypothalamic cytokines and purines play a role in the regulation of these physiological parameters as well as sleep. We hypothesized that these parameters are also affected by the absence of the P2X7 receptor. Herein, we determine spontaneous expression of body temperature and locomotor activity in wild-type (WT) and P2X7R knockout (KO) mice and how they are affected by sleep deprivation (SD)...
December 1, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27578251/the-long-noncoding-rna-asnr-regulates-degradation-of-bcl-2-mrna-through-its-interaction-with-auf1
#11
Jiahui Chen, Lihui Liu, Guifeng Wei, Wei Wu, Huaxia Luo, Jiao Yuan, Jianjun Luo, Runsheng Chen
The identification and characterization of long non-coding RNAs (lncRNAs) in diverse biological processes has recently developed rapidly. The large amounts of non-coding RNAs scale consistent with developmental complexity in eukaryotes, indicating that most of these transcripts may have functions in the regulation of biological processes and disorder in the organisms. In particular, Understanding of the overall biological significance of lncRNAs in cancers still remains limited. Here, we found a nuclear-retained lncRNA, termed Lnc_ASNR (apoptosis suppressing-noncoding RNA), which serves as a repressor of apoptosis...
August 31, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27446363/mir-148b-3p-inhibits-malignant-biological-behaviors-of-human-glioma-cells-induced-by-high-hotair-expression
#12
Guan Wang, Zhaohui Li, Nan Tian, Liang Han, Yao Fu, Zhigang Guo, Yu Tian
Increasing evidence suggests that long non coding (lnc)RNA and microRNA (miRNA/miR) both regulate the expression of key genes in tumorigenesis and have considerable theranostic potential. Rapid advances in bioinformatics indicate that miRNA may potentially interact with lncRNA to modulate their regulatory roles. miR-148b-3p has been reported to have a vital role in regulating tumor progression. However, the expression pattern of miR-148b-3p in glioma remains largely unknown, and interactions between miR-148b-3p and lncRNA has yet to be identified...
August 2016: Oncology Letters
https://www.readbyqxmd.com/read/27310006/effects-of-two-types-of-melatonin-loaded-nanocapsules-with-distinct-supramolecular-structures-polymeric-nc-and-lipid-core-nanocapsules-lnc-on-bovine-embryo-culture-model
#13
Eliza Rossi Komninou, Mariana Härter Remião, Caroline Gomes Lucas, William Borges Domingues, Andrea Cristina Basso, Denise Soledade Jornada, João Carlos Deschamps, Ruy Carlos Ruver Beck, Adriana Raffin Pohlmann, Vilceu Bordignon, Fabiana Kömmling Seixas, Vinicius Farias Campos, Silvia Stanisçuaski Guterres, Tiago Collares
Melatonin has been used as a supplement in culture medium to improve the efficiency of in vitro produced mammalian embryos. Through its ability to scavenge toxic oxygen derivatives and regulate cellular mRNA levels for antioxidant enzymes, this molecule has been shown to play a protective role against damage by free radicals, to which in vitro cultured embryos are exposed during early development. In vivo and in vitro studies have been performed showing that the use of nanocapsules as active substances carriers increases stability, bioavailability and biodistribution of drugs, such as melatonin, to the cells and tissues, improving their antioxidant properties...
2016: PloS One
https://www.readbyqxmd.com/read/27233482/melatonin-delivery-by-nanocapsules-during-in-vitro-bovine-oocyte-maturation-decreased-the-reactive-oxygen-species-of-oocytes-and-embryos
#14
Mariana Härter Remião, Caroline Gomes Lucas, William Borges Domingues, Tony Silveira, Nathaniele Nebel Barther, Eliza Rossi Komninou, Andrea Cristina Basso, Denise Soledade Jornada, Ruy Carlos Ruver Beck, Adriana Raffin Pohlmann, Antonio Sérgio Varela Junior, Fabiana Kömmling Seixas, Vinicius Farias Campos, Silvia Stanisçuaski Guterres, Tiago Collares
In this work, a promising approach to increase the advantageous properties of melatonin through its encapsulation into lipid-core nanocapsules (LNC) was examined. Oocytes were treated during in vitro maturation with non-encapsulated melatonin (Mel), melatonin-loaded lipid-core nanocapsules (Mel-LNC), and unloaded LNC. Cytotoxicity, meiotic maturation rate, development to the blastocyst stage, reactive oxygen species (ROS) and glutathione levels, mean cell number and apoptotic cell/blastocyst, and mRNA quantification were evaluated...
August 2016: Reproductive Toxicology
https://www.readbyqxmd.com/read/27188286/long-non-coding-rna-expression-profile-in-minor-salivary-gland-of-primary-sj%C3%A3-gren-s-syndrome
#15
Huan Shi, Ningning Cao, Yiping Pu, Lisong Xie, Lingyan Zheng, Chuangqi Yu
BACKGROUND: To examine the roles of long noncoding RNAs (lncRNAs) in the regulation of primary Sjögren's syndrome (pSS) and reveal the expression profile of lncRNAs in labial salivary glands (LSGs) in pSS patients. METHOD: The expression of 63,431 lncRNAs and 39,887 mRNAs were determined in the LSG of four pSS patients and four healthy controls using microarray experiments. Validation was performed in 30 pSS patients and 16 controls using real-time PCR. LncRNA-mRNA co-expression and gene-pathway networks were constructed using bioinformatics software...
2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27182066/differential-expression-profiles-of-long-noncoding-rna-and-mrna-of-osteogenically-differentiated-mesenchymal-stem-cells-in-ankylosing-spondylitis
#16
Zhongyu Xie, Jinteng Li, Peng Wang, Yuxi Li, Xiaohua Wu, Shan Wang, Hongjun Su, Wen Deng, Zhenhua Liu, Shuizhong Cen, Yi Ouyang, Yanfeng Wu, Huiyong Shen
OBJECTIVE: We previously demonstrated that mesenchymal stem cells (MSC) from patients with ankylosing spondylitis (AS; ASMSC) have a greater osteogenic differentiation capacity than MSC from healthy donors (HDMSC) and that this difference underlies the pathogenesis of pathological osteogenesis in AS. Here we compared expression levels of long noncoding RNA (lncRNA) and mRNA between osteogenically differentiated ASMSC and HDMSC and explored the precise mechanism underlying abnormal osteogenic differentiation in ASMSC...
August 2016: Journal of Rheumatology
https://www.readbyqxmd.com/read/27160062/long-noncoding-rna-lnc-ri-is-a-new-regulator-of-mitosis-via-targeting-mirna-210-3p-to-release-plk1-mrna-activity
#17
Zhi-Dong Wang, Li-Ping Shen, Cheng Chang, Xue-Qing Zhang, Zhong-Min Chen, Lin Li, Hong Chen, Ping-Kun Zhou
Increasing evidence indicates that lncRNAs play critical roles in various biological processes, but many have not been functionally characterized. Here, we report a novel radiation-inducible lncRNA, namely lnc-RI which is essential for cell survival and appropriate mitotic progression. Our data indicated that knockdown of lnc-RI resulted in spindle abnormalities and mitotic arrest simultaneously with sharply decreased mRNA and protein expression of PLK1, a key regulator of mitosis. Our data demonstrated that PLK1 is a key downstream mediator of lnc-RI in regulating mitosis, whereby lnc-RI competitively bound to the negative PLK1 regulating miRNA, miRNA-210-p3...
May 10, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27067812/rna-seq-analysis-of-non-small-cell-lung-cancer-in-female-never-smokers-reveals-candidate-cancer-associated-long-non-coding-rnas
#18
Jun Li, Lintao Bi, Zhangzhen Shi, Yanxia Sun, Yumei Lin, Hui Shao, Zhenxing Zhu
We aimed to elucidate the potential mechanisms of long non-coding RNAs (lncRNAs) in the progression of non-small cell lung cancer (NSCLC). The microarray datasets of GSE37764, including 3 primary NSCLC tumors and 3 matched normal tissues isolated from 6 Korean female never-smokers, were downloaded from Gene Expression Omnibus database. The differentially expressed lncRNAs and mRNA in NSCLC samples were identified using NOISeq package. Co-expression network of differentially expressed lncRNAs and mRNA was established...
June 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/26663205/a-novel-long-noncoding-rna-lnc-hc-binds-hnrnpa2b1-to-regulate-expressions-of-cyp7a1-and-abca1-in-hepatocytic-cholesterol-metabolism
#19
Xi Lan, Jidong Yan, Juan Ren, Bo Zhong, Jing Li, Yue Li, Li Liu, Jing Yi, Qingzhu Sun, Xudong Yang, Jian Sun, Liesu Meng, Wenhua Zhu, Rikard Holmdahl, Dongmin Li, Shemin Lu
UNLABELLED: Cholesterol metabolism disorder in hepatocytes predicts a higher risk of metabolic syndrome (MetS). Long noncoding RNAs (lncRNAs) have emerged as critical players in cellular cholesterol metabolism, but their functions are not systematically clarified. Here, we have identified a novel lncRNA named lnc-HC negatively regulating cholesterol metabolism within hepatocytes through physical interaction with hnRNPA2B1. By further binding to the target messenger RNA of Cyp7a1 or Abca1, the lnc-HC-hnRNPA2B1 complex decreases expressions of the two genes that are implicated in cellular cholesterol excretion...
July 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/26662114/the-differential-expression-of-mrnas-and-long-noncoding-rnas-between-ectopic-and-eutopic-endometria-provides-new-insights-into-adenomyosis
#20
COMPARATIVE STUDY
Cheng Zhou, Ting Zhang, Fei Liu, Ji Zhou, Xiaobei Ni, Ran Huo, Zhonghua Shi
Adenomyosis, defined as ectopic endometrial tissue within the myometrium, can often be misdiagnosed as multiple uterine leiomyomata or endometrial thickening. We therefore performed a combined mRNA and long noncoding (lnc)RNA microarray and bioinformatic analysis of eutopic and ectopic endometria in women with adenomyosis to better understand its pathogenesis and help in the development of a semi-invasive diagnostic test. A total of 586 mRNAs were increased and 305 mRNAs decreased in the ectopic endometrium of adenomyosis compared with the eutopic endometrium, while 388 lncRNA transcripts were up-regulated and 188 down-regulated in ectopic compared with paired eutopic endometrial tissue...
February 2016: Molecular BioSystems
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