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Rna binding protein

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https://www.readbyqxmd.com/read/28934490/number-of-inadvertent-rna-targets-for-morpholino-knockdown-in-danio-rerio-is-largely-underestimated-evidence-from-the-study-of-ser-arg-rich-splicing-factors
#1
Marine Joris, Marie Schloesser, Denis Baurain, Marc Hanikenne, Marc Muller, Patrick Motte
Although the involvement of Ser/Arg-rich (SR) proteins in RNA metabolism is well documented, their role in vertebrate development remains elusive. We, therefore, elected to take advantage of the zebrafish model organism to study the SR genes' functions using the splicing morpholino (sMO) microinjection and the programmable site-specific nucleases. Consistent with previous research, we revealed discrepancies between the mutant and morphant phenotypes and we show that these inconsistencies may result from a large number of unsuspected inadvertent morpholino RNA targets...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934484/regulation-of-hur-structure-and-function-by-dihydrotanshinone-i
#2
Preet Lal, Linda Cerofolini, Vito Giuseppe D'Agostino, Chiara Zucal, Carmelo Fuccio, Isabelle Bonomo, Erik Dassi, Stefano Giuntini, Danilo Di Maio, Vikalp Vishwakarma, Ranjan Preet, Sha Neisha Williams, Max S Fairlamb, Rachel Munk, Elin Lehrmann, Kotb Abdelmohsen, Saioa R Elezgarai, Claudio Luchinat, Ettore Novellino, Alessandro Quattrone, Emiliano Biasini, Leonardo Manzoni, Myriam Gorospe, Dan A Dixon, Pierfausto Seneci, Luciana Marinelli, Marco Fragai, Alessandro Provenzani
The Human antigen R protein (HuR) is an RNA-binding protein that recognizes U/AU-rich elements in diverse RNAs through two RNA-recognition motifs, RRM1 and RRM2, and post-transcriptionally regulates the fate of target RNAs. The natural product dihydrotanshinone-I (DHTS) prevents the association of HuR and target RNAs in vitro and in cultured cells by interfering with the binding of HuR to RNA. Here, we report the structural determinants of the interaction between DHTS and HuR and the impact of DHTS on HuR binding to target mRNAs transcriptome-wide...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934469/hnrnp-l-controls-hpv16-rna-polyadenylation-and-splicing-in-an-akt-kinase-dependent-manner
#3
Naoko Kajitani, Jacob Glahder, Chengjun Wu, Haoran Yu, Kersti Nilsson, Stefan Schwartz
Inhibition of the Akt kinase activates HPV16 late gene expression by reducing HPV16 early polyadenylation and by activating HPV16 late L1 mRNA splicing. We identified 'hot spots' for RNA binding proteins at the early polyA signal and at splice sites on HPV16 late mRNAs. We observed that hnRNP L was associated with sequences at all HPV16 late splice sites and at the early polyA signal. Akt kinase inhibition resulted in hnRNP L dephosphorylation and reduced association of hnRNP L with HPV16 mRNAs. This was accompanied by an increased binding of U2AF65 and Sam68 to HPV16 mRNAs...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934318/identification-of-lag3-high-affinity-aptamers-by-ht-selex-and-conserved-motif-accumulation-cma
#4
Mario Martínez Soldevilla, Sandra Hervas, Helena Villanueva, Teresa Lozano, Obdulia Rabal, Julen Oyarzabal, Juan José Lasarte, Maurizio Bendandi, Susana Inoges, Ascensión López-Díaz de Cerio, Fernando Pastor
LAG3 receptor belongs to a family of immune-checkpoints expressed in T lymphocytes and other cells of the immune system. It plays an important role as a rheostat of the immune response. Focus on this receptor as a potential therapeutic target in cancer immunotherapy has been underscored after the success of other immune-checkpoint blockade strategies in clinical trials. LAG3 showcases the interest in the field of autoimmunity as several studies show that LAG3-targeting antibodies can also be used for the treatment of autoimmune diseases...
2017: PloS One
https://www.readbyqxmd.com/read/28934222/endogenous-rgs14-is-a-cytoplasmic-nuclear-shuttling-protein-that-localizes-to-juxtanuclear-membranes-and-chromatin-rich-regions-of-the-nucleus
#5
Mary Rose Branch, John R Hepler
Regulator of G protein signaling 14 (RGS14) is a multifunctional scaffolding protein that integrates G protein and H-Ras/MAPkinase signaling pathways to regulate synaptic plasticity important for hippocampal learning and memory. However, to date, little is known about the subcellular distribution and roles of endogenous RGS14 in a neuronal cell line. Most of what is known about RGS14 cellular behavior is based on studies of tagged, recombinant RGS14 ectopically overexpressed in unnatural host cells. Here, we report for the first time a comprehensive assessment of the subcellular distribution and dynamic localization of endogenous RGS14 in rat B35 neuroblastoma cells...
2017: PloS One
https://www.readbyqxmd.com/read/28934090/adipogenic-effects-and-gene-expression-profiling-of-firemaster%C3%A2-550-components-in-human-primary-preadipocytes
#6
Emily W Y Tung, Vian Peshdary, Remi Gagné, Andrea Rowan-Carroll, Carole L Yauk, Adéle Boudreau, Ella Atlas
BACKGROUND: Exposure to flame retardants has been associated with negative health outcomes including metabolic effects. As polybrominated diphenyl ether flame retardants were pulled from commerce, human exposure to new flame retardants such as Firemaster® 550 (FM550) has increased. Although previous studies in murine systems have shown that FM550 and its main components increase adipogenesis, the effects of FM550 in human models have not been elucidated. OBJECTIVES: The objectives of this study were to determine if FM550 and its components are active in human preadipocytes, and to further investigate their mode of action...
September 14, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28934014/nucleoplasmic-nup98-controls-gene-expression-by-regulating-a-dexh-d-box-protein
#7
Juliana S Capitanio, Ben Montpetit, Richard W Wozniak
The nucleoporin Nup98 has been linked to the regulation of transcription and RNA metabolism, (1-3) but the mechanisms by which Nup98 contributes to these processes remains largely undefined. Recently, we uncovered interactions between Nup98 and several DExH/D-box proteins (DBPs), a protein family well-known for modulating gene expression and RNA metabolism. (4-6) Analysis of Nup98 and one of these DBPs, DHX9, showed that they directly interact, their association is facilitated by RNA, and Nup98 binding stimulates DHX9 ATPase activity...
September 21, 2017: Nucleus
https://www.readbyqxmd.com/read/28931862/long-non-coding-rna-hotair-promotes-cell-migration-by-upregulating-insulin-growth-factor-binding-protein-2-in-renal-cell-carcinoma
#8
Hiromichi Katayama, Keiichi Tamai, Rie Shibuya, Mao Nakamura, Mai Mochizuki, Kazunori Yamaguchi, Sadafumi Kawamura, Tatsuo Tochigi, Ikuro Sato, Takamasa Okanishi, Kunie Sakurai, Wataru Fujibuchi, Yoichi Arai, Kennichi Satoh
Renal cell carcinoma (RCC) is one of the most lethal urologic cancers. About one-third of RCC patients already have distal metastasis at the time of diagnosis. There is growing evidence that Hox antisense intergenic RNA (HOTAIR) plays essential roles in metastasis in several types of cancers. However, the precise mechanism by which HOTAIR enhances malignancy remains unclear, especially in RCC. Here, we demonstrated that HOTAIR enhances RCC-cell migration by regulating the insulin growth factor-binding protein 2 (IGFBP2) expression...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28931603/the-pyhin-protein-p205-regulates-the-inflammasome-by-controlling-asc-expression
#9
Sreya Ghosh, Christina Wallerath, Sergio Covarrubias, Veit Hornung, Susan Carpenter, Katherine A Fitzgerald
Members of the IFN-inducible PYHIN protein family, such as absent in melanoma-2 and IFN-γ-inducible protein (IFI)16, bind dsDNA and form caspase-1-activating inflammasomes that are important in immunity to cytosolic bacteria, DNA viruses, or HIV. IFI16 has also been shown to regulate transcription of type I IFNs during HSV infection. The role of other members of the PYHIN protein family in the regulation of immune responses is much less clear. In this study, we identified an immune-regulatory function for a member of the murine PYHIN protein family, p205 (also called Ifi205)...
September 20, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28931413/topological-organization-and-dynamic-regulation-of-human-trna-genes-during-macrophage-differentiation
#10
Kevin Van Bortle, Douglas H Phanstiel, Michael P Snyder
BACKGROUND: The human genome is hierarchically organized into local and long-range structures that help shape cell-type-specific transcription patterns. Transfer RNA (tRNA) genes (tDNAs), which are transcribed by RNA polymerase III (RNAPIII) and encode RNA molecules responsible for translation, are dispersed throughout the genome and, in many cases, linearly organized into genomic clusters with other tDNAs. Whether the location and three-dimensional organization of tDNAs contribute to the activity of these genes has remained difficult to address, due in part to unique challenges related to tRNA sequencing...
September 20, 2017: Genome Biology
https://www.readbyqxmd.com/read/28931210/long-noncoding-rna-pcat-1-promotes-invasion-and-metastasis-via-the-mir-129-5p-hmgb1-signaling-pathway-in-hepatocellular-carcinoma
#11
Deyuan Zhang, Jinyu Cao, Qingling Zhong, Liangtao Zeng, Chang Cai, Lang Lei, Wen Zhang, Fanrong Liu
OBJECTIVE: The long non-coding RNA (lncRNA) prostate cancer-associated transcript 1(PCAT-1) has been shown to be dysregulated and exert vital roles in tumorigenesis and progression of various malignancies. However, the precise molecular mechanism in the metastasis and invasion of HCC remain unclear. METHODS: The expression levels of PCAT1 derived from human HCC tissues and cell lines were analyzed through quantitative real-time PCR. QRT-PCR was also applied to detect the expression of HMGB1 and miR-129-5p...
September 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28930962/attenuation-of-hemorrhage-associated-lung-injury-by-adjuvant-treatment-with-c23-an-oligopeptide-derived-from-cold-inducible-rna-binding-protein
#12
Fangming Zhang, Weng-Lang Yang, Max Brenner, Ping Wang
BACKGROUND: Hemorrhagic shock (HS) is an important cause of mortality. HS is associated with an elevated incidence of acute lung injury and acute respiratory distress syndrome, significantly contributing to HS morbidity and mortality. Cold-inducible RNA-binding protein (CIRP) is released into the circulation during HS and can cause lung injury. C23 is a CIRP-derived oligopeptide that binds with high affinity to the CIRP receptor and inhibits CIRP-induced phagocyte secretion of TNF-α...
October 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28930914/the-protective-effect-of-a-short-peptide-derived-from-cold-inducible-rna-binding-protein-in-renal-ischemia-reperfusion-injury
#13
Joseph McGinn, Fangming Zhang, Monowar Aziz, Weng-Lang Yang, Jeffrey Nicastro, Gene F Coppa, Ping Wang
Extracellular cold-inducible RNA-binding protein (CIRP) functions as damage-associated molecular pattern (DAMP) and has been demonstrated to be responsible in part for the damage occurring after renal ischemia-reperfusion (I/R). A short peptide derived from CIRP, named C23, binds to myeloid differentiation factor 2 (MD2), a Toll-like receptor 4 (TLR4) co-receptor. We hypothesize that C23 reduces renal ischemia-reperfusion (RIR) injury by blocking CIRP. We observed that pre-treatment with C23 significantly decreased the levels of recombinant mouse CIRP-induced TNF-α in a dose-dependent fashion in cultured macrophages...
September 19, 2017: Shock
https://www.readbyqxmd.com/read/28930607/transcriptomics-in-amyotrophic-lateral-sclerosis
#14
Marios G Krokidis, Panagiotis Vlamos
Amyotrophic lateral sclerosis (ALS) is an adult-onset, incurable neurodegenerative disease characterized by the selective death of upper and lowers motor neurons in the spinal cord, brainstem and motor cortex, which ultimately leads to paralysis and death within 2-3 years of onset. ALS is poorly understood, although multiple studies have been proposed to explain the pathophysiological mechanisms of the disorder. The development of microarray technology, for simultaneous analysis of the transcriptional expression of thousands of genes, has provided new possibilities to get better insights into the pathogenesis of ALS, and most important, potential new candidate targets for novel treatments...
January 1, 2018: Frontiers in Bioscience (Elite Edition)
https://www.readbyqxmd.com/read/28930151/perk-signal-modulated-protein-translation-promotes-the-survivability-of-dengue-2-virus-infected-mosquito-cells-and-extends-viral-replication
#15
Jiun-Nan Hou, Tien-Huang Chen, Yi-Hsuan Chiang, Jing-Yun Peng, Tsong-Han Yang, Chih-Chieh Cheng, Eny Sofiyatun, Cheng-Hsun Chiu, Chuan Chiang-Ni, Wei-June Chen
Survival of mosquitoes from dengue virus (DENV) infection is a prerequisite of viral transmission to the host. This study aimed to see how mosquito cells can survive the infection during prosperous replication of the virus. In C6/36 cells, global protein translation was shut down after infection by DENV type 2 (DENV2). However, it returned to a normal level when infected cells were treated with an inhibitor of the protein kinase RNA (PKR)-like ER kinase (PERK) signaling pathway. Based on a 7-Methylguanosine 5'-triphosphate (m7GTP) pull-down assay, the eukaryotic translation initiation factor 4F (eIF4F) complex was also identified in DENV2-infected cells...
September 20, 2017: Viruses
https://www.readbyqxmd.com/read/28929622/endonuclease-regnase-1-monocyte-chemotactic-protein-1-induced-protein-1-mcpip1-in-controlling-immune-responses-and-beyond
#16
REVIEW
Osamu Takeuchi
The activation of inflammatory cells is controlled at transcriptional and posttranscriptional levels. Posttranscriptional regulation modifies mRNA stability and translation, allowing for elaborate control of proteins required for inflammation, such as proinflammatory cytokines, prostaglandin synthases, cell surface co-stimulatory molecules, and even transcriptional modifiers. Such regulation is important for coordinating the initiation and resolution of inflammation, and is mediated by a set of RNA-binding proteins (RBPs), including Regnase-1, Roquin, Tristetraprolin (TTP), and AU-rich elements/poly(U)-binding/degradation factor 1 (AUF1)...
September 20, 2017: Wiley Interdisciplinary Reviews. RNA
https://www.readbyqxmd.com/read/28929229/a-novel-method-for-concentration-of-porcine-reproductive-and-respiratory-syndrome-virus-from-the-environmental-samples-using-self-aggregating-peptide-tagged-cd151-binding-capture
#17
Yang Zong, Xiaoyin Zong, Wenlong Xia, Zhi Wu, Guangya Li, Yangyang Li, Xinyu Zhang, Xiaoli Xia, Huaichang Sun
Environmental surveillance of porcine reproductive and respiratory syndrome virus (PRRSV) represents a key issue in control of the disease. CD151 has recently been recognized as one of several receptors for PRRSV. We describe here a novel method for concentration of PRRSV from the environmental samples by CD151-binding capture. After fusion to self-aggregating peptide ELK16, the large extracellular loop (LEL) of porcine CD151 and its two segments (namely N63 and C63) were expressed in E. coli as protein aggregates...
September 19, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28928797/role-of-mir-128-in-hypertension-induced-myocardial-injury
#18
Jie Yin, Hongyan Liu, Lei Huan, Suping Song, Liying Han, Faxin Ren, Zengtang Zhang, Zhiqiang Zang, Junye Zhang, Shu Wang
The present study aimed to investigate the role and mechanism of micro RNA (miR)-128 in hypertension-induced myocardial injury. The peripheral blood of patients with hypertension was collected and the expression of miR-128 was detected using fluorescence reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Primary myocardial cells isolated from rat in vitro were cultured under conditions of hypoxia and glucose deprivation, and miR-128 expression was measured by RT-qPCR. The expression of c-Met protein was measured using western blot analysis and the apoptosis of transfected cells was measured by flow cytometry in rat myocardial cells following transfection with miR-128 mimics or c-Met siRNA...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28928774/y-box-protein-1-regulates-the-expression-of-collagen-i-in-hepatic-progenitor-cells-via-pdgfr-%C3%AE-erk-p90rsk-signalling
#19
Fei Li, Zhenzeng Ma, Heng Liu, Qidi Zhang, Xiaobo Cai, Ying Qu, Mingyi Xu, Lungen Lu
Y-box protein-1 (YB-1) is a highly conserved transcription factor that is involved in multiple biological processes via transcriptional regulation of several genes, including p53, cyclin D1, and EGFR. YB-1 has been reported to be overexpressed in injured livers. This study aims to explore the functions of YB-1 in hepatic progenitor cells (HPCs). Herein, chromatin immunoprecipitation sequencing (ChIP-sequencing) and RNA-sequencing assays identified that YB-1 participated in the biological adhesion process and ECM-receptor interactions in HPCs...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28928453/molecular-characterization-of-emaraviruses-associated-with-pigeonpea-sterility-mosaic-disease
#20
Surender Kumar, B L Subbarao, Vipin Hallan
Sterility Mosaic Disease (SMD) of pigeonpea (Cajanus cajan (L.) Millspaugh) is a complex disease due to various factors including the presence of a mixed infection. Comparison of dsRNA profile and small RNA (sRNA) deep sequencing analysis of samples from three locations revealed the presence of Pigeonpea sterility mosaic virus-I and II (PPSMV-I and II) from Chevella and only PPSMV-II from Bengaluru and Coimbatore. PPSMV-I genome consisted of four while PPSMV-II encompassed six RNAs. The two viruses have modest sequence homology between their corresponding RNA 1-4 encoding RdRp, glycoprotein precursor, nucleocapsid and movement proteins and the corresponding orthologs of other emaraviruses...
September 19, 2017: Scientific Reports
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