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https://www.readbyqxmd.com/read/28341660/the-noncoding-rna-linc-adamts5-cooperates-with-rreb1-to-protect-from-intervertebral-disc-degeneration-through-inhibiting-adamts5-expression
#1
Kun Wang, Yu Song, Wei Liu, Xinghuo Wu, Yukun Zhang, Shuai Li, Liang Kang, Ji Tu, Kangcheng Zhao, Wenbin Hua, Cao Yang
Previous studies have indicated the important roles of ADAMTS5 in intervertebral disc degeneration. However, the mechanisms that regulate ADAMTS5 expression in nuclear pulposus (NP) cells remain largely unknown. Evidence suggests that intergenic transcription may be associated with genes that encode transcriptional regulators. Here, we identified a long intergenic noncoding RNA, linc-ADAMTS5, that was transcribed in the opposite direction of ADAMTS5. In this study, through mining computational algorithm programs, and public available data sets, we identified Ras responsive element binding protein 1 (RREB1) as a crucial transcription factor regulating the expression of ADAMTS5 in NP cells...
March 24, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28338200/glioma-cells-promote-angiogenesis-through-the-release-of-exosomes-containing-long-non-coding-rna-pou3f3
#2
H-L Lang, G-W Hu, Y Chen, Y Liu, W Tu, Y-M Lu, L Wu, G-H Xu
OBJECTIVE: Angiogenesis is a key event in the progression of gliomas, and emerging evidence suggests that exosomes are signaling extracellular organelles that modulate the tumor microenvironment and promote angiogenesis and tumor progression. This study aimed to explore the mechanism by which glioma-derived exosomes affect angiogenesis. MATERIALS AND METHODS: qRT-PCR was used to determine the expression level of linc-POU3F3 in glioma tissue as well as glioma cell lines...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28278169/molecular-cytogenetic-fish-and-genome-analysis-of-diploid-wheatgrasses-and-their-phylogenetic-relationship
#3
Gabriella Linc, Eszter Gaál, István Molnár, Diana Icsó, Ekaterina Badaeva, Márta Molnár-Láng
This paper reports detailed FISH-based karyotypes for three diploid wheatgrass species Agropyron cristatum (L.) Beauv., Thinopyrum bessarabicum (Savul.&Rayss) A. Löve, Pseudoroegneria spicata (Pursh) A. Löve, the supposed ancestors of hexaploid Thinopyrum intermedium (Host) Barkworth & D.R.Dewey, compiled using DNA repeats and comparative genome analysis based on COS markers. Fluorescence in situ hybridization (FISH) with repetitive DNA probes proved suitable for the identification of individual chromosomes in the diploid JJ, StSt and PP genomes...
2017: PloS One
https://www.readbyqxmd.com/read/28263325/genome-wide-mapping-of-long-range-contacts-unveils-clustering-of-dna-double-strand-breaks-at-damaged-active-genes
#4
François Aymard, Marion Aguirrebengoa, Emmanuelle Guillou, Biola M Javierre, Beatrix Bugler, Coline Arnould, Vincent Rocher, Jason S Iacovoni, Anna Biernacka, Magdalena Skrzypczak, Krzysztof Ginalski, Maga Rowicka, Peter Fraser, Gaëlle Legube
The ability of DNA double-strand breaks (DSBs) to cluster in mammalian cells has been a subject of intense debate in recent years. Here we used a high-throughput chromosome conformation capture assay (capture Hi-C) to investigate clustering of DSBs induced at defined loci in the human genome. The results unambiguously demonstrated that DSBs cluster, but only when they are induced within transcriptionally active genes. Clustering of damaged genes occurs primarily during the G1 cell-cycle phase and coincides with delayed repair...
March 6, 2017: Nature Structural & Molecular Biology
https://www.readbyqxmd.com/read/28260919/overexpression-of-the-long-non-coding-rna-linc-ubc1-is-associated-with-poor-prognosis-and-facilitates-cell-proliferation-migration-and-invasion-in-colorectal-cancer
#5
Xunfeng Gao, Jianfan Wen, Peng Gao, Guowei Zhang, Gangqing Zhang
Long non-coding RNAs (lncRNAs) serve comprehensive roles in various diseases, including cancer. lncRNA upregulated in bladder cancer 1 (linc-UBC1) is a notable biomarker of prognosis in certain cancer types; however, its involvement in the progression of colorectal cancer (CRC) remains unknown. The present study aimed to investigate the expression of linc-UBC1 in patients with CRC and to investigate its effect on CRC cells. The expression levels of linc-UBC1 were estimated by reverse transcription-quantitative polymerase chain reaction in clinical CRC specimens and matched adjacent non-tumor mucosa from 96 cases of CRC, as well as in a number of CRC cell lines...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28249256/searching-for-a-lifeline-transcriptome-profiling-studies-of-influenza-susceptibility-and-resistance
#6
Lester Kobzik
An excess or dysregulated host inflammatory responses cause much of the morbidity and mortality caused by severe influenza. Given the limitations of vaccines and antiviral drugs, novel therapeutics to modulate host responses and improve outcomes in severe influenza are needed. One strategy is to learn from the direct comparison of high-survivor versus high-mortality animal models. This review surveys the results of lung transcriptome profiling studies in murine models that directly compare susceptible versus resistant hosts challenged with identical influenza infections...
March 1, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/28242746/torsina-regulates-the-linc-to-moving-nuclei
#7
Daniel A Starr, Lesilee S Rose
How LINC complexes are regulated to connect nuclei to the cytoskeleton during nuclear migration is unknown. Saunders et al. (2017. J. Cell Biol. https://doi.org/10.1083/jcb.201507113) show that the AAA+ ATPase torsinA and its partner LAP1 are required for nuclear migration during fibroblast polarization by mediating the dynamics of LINC complexes.
March 6, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28223698/sex-differences-in-microglial-cx3cr1-signalling-determine-obesity-susceptibility-in-mice
#8
Mauricio D Dorfman, Jordan E Krull, John D Douglass, Rachael Fasnacht, Fernando Lara-Lince, Thomas H Meek, Xiaogang Shi, Vincent Damian, Hong T Nguyen, Miles E Matsen, Gregory J Morton, Joshua P Thaler
Female mice are less susceptible to the negative metabolic consequences of high-fat diet feeding than male mice, for reasons that are incompletely understood. Here we identify sex-specific differences in hypothalamic microglial activation via the CX3CL1-CX3CR1 pathway that mediate the resistance of female mice to diet-induced obesity. Female mice fed a high-fat diet maintain CX3CL1-CX3CR1 levels while male mice show reductions in both ligand and receptor expression. Female Cx3cr1 knockout mice develop 'male-like' hypothalamic microglial accumulation and activation, accompanied by a marked increase in their susceptibility to diet-induced obesity...
February 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/28220681/canadian-university-acknowledgment-of-indigenous-lands-treaties-and-peoples
#9
Rima Wilkes, Aaron Duong, Linc Kesler, Howard Ramos
At many Canadian universities it is now common to publicly acknowledge Indigenous lands, treaties, and peoples. Yet, this practice has yet to be considered as a subject of scholarly inquiry. How does this practice vary and why? In this paper we describe the content and practice of acknowledgment, linking this content to treaty relationships (or lack thereof). We show that acknowledgment tends to be one of five general types: of land and title (British Columbia), of specific treaties and political relationships (Prairies), of multiculturalism and heterogeneity (Ontario), of no practice (most of Quebec), and of people, territory, and openness to doing more (Atlantic)...
February 2017: Canadian Review of Sociology, Revue Canadienne de Sociologie
https://www.readbyqxmd.com/read/28208023/transcriptomic-profiling-of-human-hippocampal-progenitor-cells-treated-with-antidepressants-and-its-application-in-drug-repositioning
#10
Timothy R Powell, Tytus Murphy, Sang H Lee, Jack Price, Sandrine Thuret, Gerome Breen
Current pharmacological treatments for major depressive disorder (MDD) are ineffective in a significant proportion of patients, and the identification of new antidepressant compounds has been difficult. 'Connectivity mapping' is a method that can be used to identify drugs that elicit similar downstream effects on mRNA levels when compared to current treatments, and thus may point towards possible repositioning opportunities. We investigated genome-wide transcriptomic changes to human hippocampal progenitor cells treated with therapeutically relevant concentrations of a tricyclic antidepressant (nortriptyline) and a selective serotonin reuptake inhibitor (escitalopram)...
March 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28178176/nlrp12-inflammasome-expression-in-the-rat-brain-in-response-to-lps-during-morphine-tolerance
#11
Sulie L Chang, Wenfei Huang, Xin Mao, Sabroni Sarkar
Morphine, an effective but addictive analgesic, can profoundly affect the inflammatory response to pathogens, and long-term use can result in morphine tolerance. Inflammasomes are protein complexes involved in the inflammatory response. The nucleotide-binding oligomerization domain-like receptor (NLR) Family Pyrin Domain Containing (NLRP) 12 (NLRP12) inflammasome has been reported to have anti-inflammatory activity. In this study, we examined the expression of NLRP12 inflammasome related genes in the adult F344 rat brain in response to the bacterial endotoxin lipopolysaccharide (LPS) in the presence and absence of morphine tolerance...
February 6, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28137723/in-vivo-spiking-dynamics-of-intra-and-extratelencephalic-projection-neurons-in-rat-motor-cortex
#12
Akiko Saiki, Yutaka Sakai, Ryoji Fukabori, Shogo Soma, Junichi Yoshida, Masanori Kawabata, Hiromu Yawo, Kazuto Kobayashi, Minoru Kimura, Yoshikazu Isomura
In motor cortex, 2 types of deep layer pyramidal cells send their axons to other areas: intratelencephalic (IT)-type neurons specifically project bilaterally to the cerebral cortex and striatum, whereas neurons of the extratelencephalic (ET)-type, termed conventionally pyramidal tract-type, project ipsilaterally to the thalamus and other areas. Although they have totally different synaptic and membrane potential properties in vitro, little is known about the differences between them in ongoing spiking dynamics in vivo...
January 30, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28134781/implications-for-diverse-functions-of-the-linc-complexes-based-on-the-structure
#13
REVIEW
Miki Hieda
The linker of nucleoskeleton and cytoskeleton (LINC) complex is composed of the outer and inner nuclear membrane protein families Klarsicht, Anc-1, and Syne homology (KASH), and Sad1 and UNC-84 (SUN) homology domain proteins. Increasing evidence has pointed to diverse functions of the LINC complex, such as in nuclear migration, nuclear integrity, chromosome movement and pairing during meiosis, and mechanotransduction to the genome. In metazoan cells, the nuclear envelope possesses the nuclear lamina, which is a thin meshwork of intermediate filaments known as A-type and B-type lamins and lamin binding proteins...
January 26, 2017: Cells
https://www.readbyqxmd.com/read/28125396/current-insights-into-lmna-cardiomyopathies-existing-models-and-missing-lincs
#14
Daniel Brayson, Catherine M Shanahan
The nuclear lamina is a critical structural domain for the maintenance of genomic stability and whole-cell mechanics. Mutations in the LMNA gene, which encodes nuclear A-type lamins lead to the disruption of these key cellular functions, resulting in a number of devastating diseases known as laminopathies. Cardiomyopathy is a common laminopathy and is highly penetrant with poor prognosis. To date, cell mechanical instability and dysregulation of gene expression have been proposed as the main mechanisms driving cardiac dysfunction, and indeed discoveries in these areas have provided some promising leads in terms of therapeutics...
January 2, 2017: Nucleus
https://www.readbyqxmd.com/read/28109290/characterizing-breast-conditions-at-an-open-access-breast-clinic-in-south-africa-a-model-that-is-more-than-cancer-care-for-a-resource-limited-setting
#15
Sarah Rayne, Naomi Lince-Deroche, Cheryl Hendrickson, Kate Shearer, Faith Moyo, Pam Michelow, Grace Rubin, Carol Benn, Cynthia Firnhaber
BACKGROUND: While most breast-related research focuses on cancer, presentation of symptomatic persons in non-screened environments requires understanding the spectrum of breast diseases so as to plan services in resource-constrained settings. This study presents the variety of breast disease managed at a government, open-access breast clinic in South Africa. METHODS: We performed a retrospective file review using a systematic random sample of patients 18 years and above presenting for breast care over a 14-month period...
January 21, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28102353/cofilin-regulates-nuclear-architecture-through-a-myosin-ii-dependent-mechanotransduction-module
#16
O'Neil Wiggan, Bryce Schroder, Diego Krapf, James R Bamburg, Jennifer G DeLuca
Structural features of the nucleus including shape, size and deformability impact its function affecting normal cellular processes such as cell differentiation and pathological conditions such as tumor cell migration. Despite the fact that abnormal nuclear morphology has long been a defining characteristic for diseases such as cancer relatively little is known about the mechanisms that control normal nuclear architecture. Mounting evidence suggests close coupling between F-actin cytoskeletal organization and nuclear morphology however, mechanisms regulating this coupling are lacking...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101692/the-assembly-and-function-of-perinuclear-actin-cap-in-migrating-cells
#17
Miloslava Maninova, Josef Caslavsky, Tomas Vomastek
Stress fibers are actin bundles encompassing actin filaments, actin-crosslinking, and actin-associated proteins that represent the major contractile system in the cell. Different types of stress fibers assemble in adherent cells, and they are central to diverse cellular processes including establishment of the cell shape, morphogenesis, cell polarization, and migration. Stress fibers display specific cellular organization and localization, with ventral fibers present at the basal side, and dorsal fibers and transverse actin arcs rising at the cell front from the ventral to the dorsal side and toward the nucleus...
January 18, 2017: Protoplasma
https://www.readbyqxmd.com/read/28091529/long-non-coding-rna-linc-ram-enhances-myogenic-differentiation-by-interacting-with-myod
#18
Xiaohua Yu, Yong Zhang, Tingting Li, Zhao Ma, Haixue Jia, Qian Chen, Yixia Zhao, Lili Zhai, Ran Zhong, Changyin Li, Xiaoting Zou, Jiao Meng, Antony K Chen, Pier Lorenzo Puri, Meihong Chen, Dahai Zhu
Long non-coding RNAs (lncRNAs) are important regulators of diverse biological processes. Here we report on functional identification and characterization of a novel long intergenic non-coding RNA with MyoD-regulated and skeletal muscle-restricted expression that promotes the activation of the myogenic program, and is therefore termed Linc-RAM (Linc-RNA Activator of Myogenesis). Linc-RAM is transcribed from an intergenic region of myogenic cells and its expression is upregulated during myogenesis. Notably, in vivo functional studies show that Linc-RAM knockout mice display impaired muscle regeneration due to the differentiation defect of satellite cells...
January 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28077629/sun2-silencing-impairs-cd4-t-cell-proliferation-and-alters-sensitivity-to-hiv-1-infection-independently-of-cyclophilin-a
#19
Daniel A Donahue, Françoise Porrot, Norbert Couespel, Olivier Schwartz
Linker of nucleoskeleton and cytoskeleton (LINC) complexes connect the nucleus to the cytoskeleton in eukaryotic cells. We previously reported that the overexpression of SUN2, an inner nuclear membrane protein and LINC complex component, inhibits HIV infection between the steps of reverse transcription and nuclear import in a capsid-specific manner. We also reported that SUN2 silencing does not modulate HIV infection in several cell lines. Silencing of SUN2 was recently reported to decrease HIV infection of CD4 T cells, an effect which was suggested to result from modulation of cyclophilin A (CypA)-dependent steps of HIV infection...
March 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28071740/elucidating-the-modes-of-action-for-bioactive-compounds-in-a-cell-specific-manner-by-large-scale-chemically-induced-transcriptomics
#20
Michio Iwata, Ryusuke Sawada, Hiroaki Iwata, Masaaki Kotera, Yoshihiro Yamanishi
The identification of the modes of action of bioactive compounds is a major challenge in chemical systems biology of diseases. Genome-wide expression profiling of transcriptional responses to compound treatment for human cell lines is a promising unbiased approach for the mode-of-action analysis. Here we developed a novel approach to elucidate the modes of action of bioactive compounds in a cell-specific manner using large-scale chemically-induced transcriptome data acquired from the Library of Integrated Network-based Cellular Signatures (LINCS), and analyzed 16,268 compounds and 68 human cell lines...
January 10, 2017: Scientific Reports
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